Ultra Detailed Player Audit - 20260618

Player-by-player trace from JSON pipeline. Metric-by-metric comparison without wide horizontal table dependency.

Windows shown explicitly: Team recent form = latest 10 games from enhanced analysis. Player historical helpers = 75 games; balancing rates = 162 games (as implemented in services).

Savant layers shown explicitly: hitter Statcast quality, pitcher Statcast quality, and pitch movement from embedded data/all_players_stats.csv features.

Color guide: Red = final above baseline, Blue = final below baseline, Green = no difference.

20260618_BAL@SEA

Prediction Method: enhanced_ml_savant_pitcher_quality
Team Recent Window (Home): 63 games
Team Recent Window (Away): 66 games
Team Recent Period: Latest 10 games from dataset
Enhanced Prediction Target: {"away_runs": 3, "home_runs": 4, "confidence": 0.555754, "home_win_probability": 0.555754, "away_win_probability": 0.44424600000000003, "predicted_score_text": "BAL 3 - 4 SEA", "embedded_savant_score_adjustment": {"applied": true, "source": "all_players_stats.csv embedded temporal Savant features", "feature_contract": {"training_grain": "one player-game row after collapsing granular at-bat rows", "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game", "hitter_signals": ["xwoba", "xba", "xslg", "barrel_batted_rate", "hard_hit_percent", "bat_speed", "launch_quality", "walk_rate", "strikeout_rate"], "pitcher_signals": ["xwoba_allowed", "barrel_allowed", "hard_hit_allowed", "whiff_rate", "command_score", "movement_score", "faced_est_woba", "faced_strikeout_rate"]}, "away": {"team": "BAL", "original_runs": 3, "run_delta": 0.0587, "adjusted_runs": 3, "lineup": {"players_used": 9, "total_weight": 32.0, "quality": 0.32352125163736484, "contact": 0.42319222650119226, "power": 0.4760736199788824, "discipline": 0.15746233255716505, "xwoba": 0.33862499999999995, "recent_xwoba": 0.33862499999999995, "barrel": 9.3875, "ab_hard_contact": 0.24996049481573857, "ab_bat_speed": 70.85034333326377, "ab_strikeout_rate": 0.2374997391617665, "available_players": 9, "top_players": [{"player_id": "624413", "player_name": "Pete Alonso", "position": "1B", "weight": 4.0, "quality": 1.2619261543653537, "contact": 1.3623813711960004, "power": 1.5877640178864487, "discipline": 0.13897700778595098, "xwoba": 0.374, "recent_xwoba": 0.374, "barrel": 12.3, "ab_hard_contact": 1.0851851196337268, "ab_bat_speed": 73.31301087595531, "ab_strikeout_rate": 0.24369488536155204, "available": 1.0}, {"player_id": "668939", "player_name": "Adley Rutschman", "position": "DH", "weight": 4.0, "quality": 0.5346846857087868, "contact": 0.9746054864336867, "power": 0.5750406100024117, "discipline": 0.8027677747433847, "xwoba": 0.36, "recent_xwoba": 0.36, "barrel": 8.9, "ab_hard_contact": 0.1057645810006051, "ab_bat_speed": 70.20796203346204, "ab_strikeout_rate": 0.13626126126126126, "available": 1.0}, {"player_id": "694212", "player_name": "Samuel Basallo", "position": "C", "weight": 3.0, "quality": 0.39347967897993413, "contact": 0.5266248424734001, "power": 0.975976713422905, "discipline": -0.3524471544715446, "xwoba": 0.343, "recent_xwoba": 0.343, "barrel": 12.2, "ab_hard_contact": -0.15779906487523654, "ab_bat_speed": 73.77122354497354, "ab_strikeout_rate": 0.25476190476190474, "available": 1.0}, {"player_id": "665750", "player_name": "Leody Taveras", "position": "RF", "weight": 3.0, "quality": -0.4036228087042926, "contact": -0.5420778165204303, "power": -0.8016284077838015, "discipline": 0.12516303378980653, "xwoba": 0.297, "recent_xwoba": 0.297, "barrel": 4.0, "ab_hard_contact": -0.5628538699617495, "ab_bat_speed": 68.59897286821705, "ab_strikeout_rate": 0.25329457364341085, "available": 1.0}, {"player_id": "677942", "player_name": "Blaze Alexander", "position": "3B", "weight": 3.0, "quality": 0.3960955357885345, "contact": 1.1836090295482296, "power": 0.5972062514116778, "discipline": -0.47299734752173767, "xwoba": 0.359, "recent_xwoba": 0.359, "barrel": 6.6, "ab_hard_contact": 0.2386012187097421, "ab_bat_speed": 71.06386786786787, "ab_strikeout_rate": 0.25495495495495496, "available": 1.0}]}, "opposing_starter": {"available": true, "player_id": "693433", "player_name": "Bryan Woo", "quality": 0.24682054072596749, "contact": 0.25245327041674603, "command": 0.24242857142857138, "movement": 0.6551490170870105, "xwoba": 0.286, "whiff": 24.2, "faced_est_woba": 0.267543125, "faced_launch_speed": 83.82962962962962, "faced_strikeout_rate": 0.23125, "faced_run_exp": 0.007916194341372912}}, "home": {"team": "SEA", "original_runs": 4, "run_delta": 0.1207, "adjusted_runs": 4, "lineup": {"players_used": 9, "total_weight": 31.0, "quality": 0.08437089164444374, "contact": -0.340419378819176, "power": -0.2006627624853991, "discipline": 0.056704141605400556, "xwoba": 0.3022258064516129, "recent_xwoba": 0.3022258064516129, "barrel": 7.341935483870967, "ab_hard_contact": -0.20175908995376474, "ab_bat_speed": 70.23872242338447, "ab_strikeout_rate": 0.23081605823147916, "available_players": 8, "top_players": [{"player_id": "686527", "player_name": "Dominic Canzone", "position": "RF", "weight": 3.0, "quality": 0.6930814475136295, "contact": 1.4060098200244202, "power": 1.7251946956453426, "discipline": -0.07190482642921657, "xwoba": 0.389, "recent_xwoba": 0.389, "barrel": 15.8, "ab_hard_contact": 0.3111320081449384, "ab_bat_speed": 73.09844753086419, "ab_strikeout_rate": 0.23814814814814816, "available": 1.0}, {"player_id": "670156", "player_name": "Miles Mastrobuoni", "position": "LF", "weight": 3.0, "quality": -0.0, "contact": -1.9443428571428565, "power": -1.670323809523809, "discipline": -0.21942857142857125, "xwoba": 0.191, "recent_xwoba": 0.191, "barrel": 0.0, "ab_hard_contact": -2.0, "ab_bat_speed": 70.26065568475452, "ab_strikeout_rate": 0.22179487179487178, "available": 0.0}, {"player_id": "806068", "player_name": "Colt Emerson", "position": "SS", "weight": 3.0, "quality": -0.2007471360613668, "contact": -1.8247777429385421, "power": -1.085064200528357, "discipline": -0.6856296941540846, "xwoba": 0.23, "recent_xwoba": 0.23, "barrel": 5.400000000000001, "ab_hard_contact": -0.6376649629481066, "ab_bat_speed": 70.67972222222221, "ab_strikeout_rate": 0.19444444444444445, "available": 1.0}, {"player_id": "645302", "player_name": "Victor Robles", "position": "CF", "weight": 3.0, "quality": -0.08457530072086882, "contact": -0.9446862085470082, "power": -0.9607029251756241, "discipline": -0.18870905923344936, "xwoba": 0.268, "recent_xwoba": 0.268, "barrel": 4.7, "ab_hard_contact": 0.16403673458275886, "ab_bat_speed": 65.0796875, "ab_strikeout_rate": 0.21666666666666667, "available": 1.0}, {"player_id": "641487", "player_name": "J.P. Crawford", "position": "3B", "weight": 4.0, "quality": 0.3558321110115024, "contact": 0.42795856526251563, "power": 0.15275950749334377, "discipline": 1.1230607820363918, "xwoba": 0.357, "recent_xwoba": 0.357, "barrel": 9.2, "ab_hard_contact": -0.16728604060932234, "ab_bat_speed": 69.77111979166666, "ab_strikeout_rate": 0.18611111111111112, "available": 1.0}]}, "opposing_starter": {"available": true, "player_id": "669358", "player_name": "Shane Baz", "quality": -0.4709599847915376, "contact": -0.7009094067955561, "command": -0.3594285714285716, "movement": 0.16595293205565387, "xwoba": 0.338, "whiff": 21.0, "faced_est_woba": 0.267543125, "faced_launch_speed": 83.82962962962962, "faced_strikeout_rate": 0.23125, "faced_run_exp": 0.007916194341372912}}}, "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Production confidence governor cap enforced.", "pre_simulation_target": {"away_runs": 3, "home_runs": 4, "predicted_score_text": "BAL 3 - 4 SEA", "confidence": 0.555754, "source": "enhanced_prediction_before_inning_simulation"}, "score_source": "enhanced_prediction.pre_simulation_target", "final_prediction_synced": true, "final_prediction_source": "pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "simulation_score_matches_prediction": false, "simulation_reconciliation": {"pre_simulation_score": {"away_runs": 3, "home_runs": 4, "score_text": "BAL 3 - 4 SEA", "winner": "SEA"}, "final_simulation_score": {"away_runs": 2, "home_runs": 3, "score_text": "BAL 2 - 3 SEA", "winner": "SEA"}, "winner_flipped_by_simulation": false, "away_run_delta": -1, "home_run_delta": -1, "total_run_delta": -2, "score_source": "enhanced_prediction.pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "final_prediction_source": "pre_simulation_target"}}
Factors Considered: Historical team performance, Season-to-date run differential, Recent form (latest 10 games), Head-to-head matchup history, Player-level statistics, Baseball Savant hitter xwOBA/xBA/xSLG/contact quality, Baseball Savant pitcher xwOBA/contact/whiff quality, Recent 10-game performance trends, Pitcher recent form analysis, Team hitting/pitching streaks, Low-score probability modeling, Environmental factors, Home field advantage, Game timing factors, Seasonal adjustments, Machine learning models

Game-Level Prediction Audit

LayerScoreWinnerConfidenceSource or usageSynced or matches
Shipped predictionBAL 3 - 4 SEASEA0.556enhanced_prediction.pre_simulation_targetTrue
Simulation drawBAL 2 - 3 SEASEA-advisory_box_score_drawFalse

The shipped score is the pre-simulation model target. The inning simulation is a separate box-score realization used for player lines and stress testing.

Full Prediction Process

Process LayerWhat It DoesStored FieldObserved Value
1. Historical modelStarts from trained game model output.score_evolution.steps[historical_ml]-
2. Variance layerApplies bounded game variance before enhanced corrections.score_evolution.steps[variance_applied]-
3. Recent/team formUses latest team form, recent scoring, prevention, and streak state.enhanced_prediction_analysis.recent_formTrue
4. Season qualityUses season run differential and record quality guardrails.season_run_differential_adjustment, season_quality_guardrailTrue
5. Savant hittersApplies lineup-level Statcast xwOBA, xBA, xSLG, barrel, hard-hit, sweet-spot, EV, launch-angle, whiff, K and BB quality.savant_batter_quality_adjustmentTrue
6. Savant pitchersApplies starter run prevention, strikeout, walk, HR and regression factors from xwOBA, wOBA, contact quality and whiff/command.savant_pitcher_quality_adjustmentTrue
7. Low-score analysisControls unrealistic totals and preserves the pre-sync low-score expected total.low_score_analysis9.6000
8. Probability/governorsApplies win probability calibration, matchup guardrails, margin governor and confidence governor.win_probability_calibration, margin_governor, confidence_governor0.5558
9. Simulation reconciliationKeeps final shipped score and simulation box score auditable side by side.simulation_reconciliationadvisory_box_score_draw
10. Score evolution rendered6 stored score steps are rendered below.game.score_evolution.stepstrue

Score Evolution Steps

StepLayerAway RunsHome RunsConfidenceDescription
1historical_ml6.6605.638-Base ML historical model prediction
2variance_applied76-Random variance applied (0.9-1.1)
3enhanced_prediction340.5558Enhanced ML with recent form, H2H, low-score analysis
4embedded_savant_run_environment34-Target score adjusted by temporal Savant lineup quality versus opposing starter quality
5capped_target34-Capped at max 12 realistic runs
6simulation_result23-Final inning-by-inning simulation result

Governors, Guardrails, and Reconciliation

Low Score Analysis
{
  "low_score_probability": 0.4655601659751038,
  "base_low_score_probability": 0.4149377593360996,
  "low_score_signal_threshold": 0.5,
  "low_score_signal_strength": 0.05062240663900419,
  "confidence": 0.661,
  "factors": {
    "environmental": 1.02,
    "pitcher_form": 1.1,
    "team_form": 1.0,
    "situational": 1.0,
    "combined": 1.122
  },
  "prediction": "normal_scoring",
  "expected_total_runs": 7,
  "pre_simulation_expected_total_runs": 9.6,
  "low_score_model_expected_total_runs": 9.6,
  "final_simulation_total_runs": 5,
  "score_source": "enhanced_prediction.pre_simulation_target"
}
Win Probability Calibration
{
  "method": "historical_slate_bin_shrinkage",
  "sample_size": 124,
  "near_bucket_sample_size": 124,
  "medium_bucket_sample_size": 213,
  "wide_bucket_sample_size": 229,
  "global_sample_size": 242,
  "bucket_scope": "near_0.05",
  "sparse_bucket": false,
  "empirical_hit_rate": 0.6129,
  "bayesian_hit_rate": 0.5986,
  "sample_weight": 0.6,
  "prior_strength": 18.0,
  "reliability": 0.8732,
  "confidence_cap": 0.78,
  "raw_pick_probability": 0.507,
  "calibrated_pick_probability": 0.5558,
  "predicted_side": "home"
}
Season Run Differential Adjustment
{
  "applied": true,
  "home": {
    "team": "SEA",
    "games": 74,
    "wins": 38,
    "losses": 36,
    "win_pct": 0.5135135135135135,
    "runs_scored": 314,
    "runs_allowed": 292,
    "run_differential": 22,
    "run_differential_per_game": 0.2972972972972973,
    "available": true
  },
  "away": {
    "team": "BAL",
    "games": 74,
    "wins": 34,
    "losses": 40,
    "win_pct": 0.4594594594594595,
    "runs_scored": 344,
    "runs_allowed": 379,
    "run_differential": -35,
    "run_differential_per_game": -0.47297297297297297,
    "available": true
  },
  "run_differential_edge_per_game": 0.7703,
  "win_pct_edge": 0.0541,
  "quality_edge": 0.8514,
  "margin_adjustment": 0.3576,
  "reason": "season-to-date run differential and record moved the score toward the stronger team",
  "adjusted_score": {
    "away_runs": 3.2,
    "home_runs": 3.283,
    "home_win_probability": 0.507
  }
}
Matchup Recency Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "predicted_team": "SEA",
    "guardrail_predicted_team": "SEA",
    "guardrail_opponent_team": null,
    "output_pre_simulation_winner": "SEA",
    "output_opponent_team": "BAL",
    "final_score_winner": "SEA",
    "pre_simulation_winner": "SEA",
    "winner_flipped_by_simulation": false
  },
  "final_prediction_sync": {
    "pre_simulation_score": {
      "away_runs": 3,
      "home_runs": 4,
      "score_text": "BAL 3 - 4 SEA",
      "winner": "SEA"
    },
    "final_simulation_score": {
      "away_runs": 2,
      "home_runs": 3,
      "score_text": "BAL 2 - 3 SEA",
      "winner": "SEA"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": -1,
    "home_run_delta": -1,
    "total_run_delta": -2,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}
Season Quality Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "home": {
      "team": "SEA",
      "games": 74,
      "wins": 38,
      "losses": 36,
      "win_pct": 0.5135135135135135,
      "runs_scored": 314,
      "runs_allowed": 292,
      "run_differential": 22,
      "run_differential_per_game": 0.2972972972972973,
      "available": true
    },
    "away": {
      "team": "BAL",
      "games": 74,
      "wins": 34,
      "losses": 40,
      "win_pct": 0.4594594594594595,
      "runs_scored": 344,
      "runs_allowed": 379,
      "run_differential": -35,
      "run_differential_per_game": -0.47297297297297297,
      "available": true
    }
  }
}
Margin Governor
{
  "applied": false,
  "raw_margin": 0.0822,
  "final_margin": 0.0822,
  "margin_cap": 2.0,
  "season_quality_edge": 0.8514,
  "reason": "raw target margin within supported range"
}
Confidence Governor
{
  "applied": false,
  "raw_confidence": 0.53201,
  "final_confidence": 0.53201,
  "confidence_cap": 0.66,
  "score_gap": 0.0822,
  "calibration_sample_size": 124,
  "calibration_empirical_hit_rate": 0.6129,
  "calibration_bayesian_hit_rate": 0.5986,
  "calibration_sparse_bucket": false,
  "season_quality_edge": 0.8514,
  "reasons": [
    "unvalidated probabilities are capped for production display",
    "projected score gap is close",
    "local calibration sample has at least 30 games",
    "local calibration sample has at least 60 games",
    "win-probability calibration cap enforced"
  ]
}
Simulation Reconciliation
{
  "pre_simulation_score": {
    "away_runs": 3,
    "home_runs": 4,
    "score_text": "BAL 3 - 4 SEA",
    "winner": "SEA"
  },
  "final_simulation_score": {
    "away_runs": 2,
    "home_runs": 3,
    "score_text": "BAL 2 - 3 SEA",
    "winner": "SEA"
  },
  "winner_flipped_by_simulation": false,
  "away_run_delta": -1,
  "home_run_delta": -1,
  "total_run_delta": -2,
  "score_source": "enhanced_prediction.pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "final_prediction_source": "pre_simulation_target"
}
Enhanced Prediction Target
{
  "away_runs": 3,
  "home_runs": 4,
  "confidence": 0.555754,
  "home_win_probability": 0.555754,
  "away_win_probability": 0.44424600000000003,
  "predicted_score_text": "BAL 3 - 4 SEA",
  "embedded_savant_score_adjustment": {
    "applied": true,
    "source": "all_players_stats.csv embedded temporal Savant features",
    "feature_contract": {
      "training_grain": "one player-game row after collapsing granular at-bat rows",
      "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game",
      "hitter_signals": [
        "xwoba",
        "xba",
        "xslg",
        "barrel_batted_rate",
        "hard_hit_percent",
        "bat_speed",
        "launch_quality",
        "walk_rate",
        "strikeout_rate"
      ],
      "pitcher_signals": [
        "xwoba_allowed",
        "barrel_allowed",
        "hard_hit_allowed",
        "whiff_rate",
        "command_score",
        "movement_score",
        "faced_est_woba",
        "faced_strikeout_rate"
      ]
    },
    "away": {
      "team": "BAL",
      "original_runs": 3,
      "run_delta": 0.0587,
      "adjusted_runs": 3,
      "lineup": {
        "players_used": 9,
        "total_weight": 32.0,
        "quality": 0.32352125163736484,
        "contact": 0.42319222650119226,
        "power": 0.4760736199788824,
        "discipline": 0.15746233255716505,
        "xwoba": 0.33862499999999995,
        "recent_xwoba": 0.33862499999999995,
        "barrel": 9.3875,
        "ab_hard_contact": 0.24996049481573857,
        "ab_bat_speed": 70.85034333326377,
        "ab_strikeout_rate": 0.2374997391617665,
        "available_players": 9,
        "top_players": [
          {
            "player_id": "624413",
            "player_name": "Pete Alonso",
            "position": "1B",
            "weight": 4.0,
            "quality": 1.2619261543653537,
            "contact": 1.3623813711960004,
            "power": 1.5877640178864487,
            "discipline": 0.13897700778595098,
            "xwoba": 0.374,
            "recent_xwoba": 0.374,
            "barrel": 12.3,
            "ab_hard_contact": 1.0851851196337268,
            "ab_bat_speed": 73.31301087595531,
            "ab_strikeout_rate": 0.24369488536155204,
            "available": 1.0
          },
          {
            "player_id": "668939",
            "player_name": "Adley Rutschman",
            "position": "DH",
            "weight": 4.0,
            "quality": 0.5346846857087868,
            "contact": 0.9746054864336867,
            "power": 0.5750406100024117,
            "discipline": 0.8027677747433847,
            "xwoba": 0.36,
            "recent_xwoba": 0.36,
            "barrel": 8.9,
            "ab_hard_contact": 0.1057645810006051,
            "ab_bat_speed": 70.20796203346204,
            "ab_strikeout_rate": 0.13626126126126126,
            "available": 1.0
          },
          {
            "player_id": "694212",
            "player_name": "Samuel Basallo",
            "position": "C",
            "weight": 3.0,
            "quality": 0.39347967897993413,
            "contact": 0.5266248424734001,
            "power": 0.975976713422905,
            "discipline": -0.3524471544715446,
            "xwoba": 0.343,
            "recent_xwoba": 0.343,
            "barrel": 12.2,
            "ab_hard_contact": -0.15779906487523654,
            "ab_bat_speed": 73.77122354497354,
            "ab_strikeout_rate": 0.25476190476190474,
            "available": 1.0
          },
          {
            "player_id": "665750",
            "player_name": "Leody Taveras",
            "position": "RF",
            "weight": 3.0,
            "quality": -0.4036228087042926,
            "contact": -0.5420778165204303,
            "power": -0.8016284077838015,
            "discipline": 0.12516303378980653,
            "xwoba": 0.297,
            "recent_xwoba": 0.297,
            "barrel": 4.0,
            "ab_hard_contact": -0.5628538699617495,
            "ab_bat_speed": 68.59897286821705,
            "ab_strikeout_rate": 0.25329457364341085,
            "available": 1.0
          },
          {
            "player_id": "677942",
            "player_name": "Blaze Alexander",
            "position": "3B",
            "weight": 3.0,
            "quality": 0.3960955357885345,
            "contact": 1.1836090295482296,
            "power": 0.5972062514116778,
            "discipline": -0.47299734752173767,
            "xwoba": 0.359,
            "recent_xwoba": 0.359,
            "barrel": 6.6,
            "ab_hard_contact": 0.2386012187097421,
            "ab_bat_speed": 71.06386786786787,
            "ab_strikeout_rate": 0.25495495495495496,
            "available": 1.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "693433",
        "player_name": "Bryan Woo",
        "quality": 0.24682054072596749,
        "contact": 0.25245327041674603,
        "command": 0.24242857142857138,
        "movement": 0.6551490170870105,
        "xwoba": 0.286,
        "whiff": 24.2,
        "faced_est_woba": 0.267543125,
        "faced_launch_speed": 83.82962962962962,
        "faced_strikeout_rate": 0.23125,
        "faced_run_exp": 0.007916194341372912
      }
    },
    "home": {
      "team": "SEA",
      "original_runs": 4,
      "run_delta": 0.1207,
      "adjusted_runs": 4,
      "lineup": {
        "players_used": 9,
        "total_weight": 31.0,
        "quality": 0.08437089164444374,
        "contact": -0.340419378819176,
        "power": -0.2006627624853991,
        "discipline": 0.056704141605400556,
        "xwoba": 0.3022258064516129,
        "recent_xwoba": 0.3022258064516129,
        "barrel": 7.341935483870967,
        "ab_hard_contact": -0.20175908995376474,
        "ab_bat_speed": 70.23872242338447,
        "ab_strikeout_rate": 0.23081605823147916,
        "available_players": 8,
        "top_players": [
          {
            "player_id": "686527",
            "player_name": "Dominic Canzone",
            "position": "RF",
            "weight": 3.0,
            "quality": 0.6930814475136295,
            "contact": 1.4060098200244202,
            "power": 1.7251946956453426,
            "discipline": -0.07190482642921657,
            "xwoba": 0.389,
            "recent_xwoba": 0.389,
            "barrel": 15.8,
            "ab_hard_contact": 0.3111320081449384,
            "ab_bat_speed": 73.09844753086419,
            "ab_strikeout_rate": 0.23814814814814816,
            "available": 1.0
          },
          {
            "player_id": "670156",
            "player_name": "Miles Mastrobuoni",
            "position": "LF",
            "weight": 3.0,
            "quality": -0.0,
            "contact": -1.9443428571428565,
            "power": -1.670323809523809,
            "discipline": -0.21942857142857125,
            "xwoba": 0.191,
            "recent_xwoba": 0.191,
            "barrel": 0.0,
            "ab_hard_contact": -2.0,
            "ab_bat_speed": 70.26065568475452,
            "ab_strikeout_rate": 0.22179487179487178,
            "available": 0.0
          },
          {
            "player_id": "806068",
            "player_name": "Colt Emerson",
            "position": "SS",
            "weight": 3.0,
            "quality": -0.2007471360613668,
            "contact": -1.8247777429385421,
            "power": -1.085064200528357,
            "discipline": -0.6856296941540846,
            "xwoba": 0.23,
            "recent_xwoba": 0.23,
            "barrel": 5.400000000000001,
            "ab_hard_contact": -0.6376649629481066,
            "ab_bat_speed": 70.67972222222221,
            "ab_strikeout_rate": 0.19444444444444445,
            "available": 1.0
          },
          {
            "player_id": "645302",
            "player_name": "Victor Robles",
            "position": "CF",
            "weight": 3.0,
            "quality": -0.08457530072086882,
            "contact": -0.9446862085470082,
            "power": -0.9607029251756241,
            "discipline": -0.18870905923344936,
            "xwoba": 0.268,
            "recent_xwoba": 0.268,
            "barrel": 4.7,
            "ab_hard_contact": 0.16403673458275886,
            "ab_bat_speed": 65.0796875,
            "ab_strikeout_rate": 0.21666666666666667,
            "available": 1.0
          },
          {
            "player_id": "641487",
            "player_name": "J.P. Crawford",
            "position": "3B",
            "weight": 4.0,
            "quality": 0.3558321110115024,
            "contact": 0.42795856526251563,
            "power": 0.15275950749334377,
            "discipline": 1.1230607820363918,
            "xwoba": 0.357,
            "recent_xwoba": 0.357,
            "barrel": 9.2,
            "ab_hard_contact": -0.16728604060932234,
            "ab_bat_speed": 69.77111979166666,
            "ab_strikeout_rate": 0.18611111111111112,
            "available": 1.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "669358",
        "player_name": "Shane Baz",
        "quality": -0.4709599847915376,
        "contact": -0.7009094067955561,
        "command": -0.3594285714285716,
        "movement": 0.16595293205565387,
        "xwoba": 0.338,
        "whiff": 21.0,
        "faced_est_woba": 0.267543125,
        "faced_launch_speed": 83.82962962962962,
        "faced_strikeout_rate": 0.23125,
        "faced_run_exp": 0.007916194341372912
      }
    }
  },
  "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Production confidence governor cap enforced.",
  "pre_simulation_target": {
    "away_runs": 3,
    "home_runs": 4,
    "predicted_score_text": "BAL 3 - 4 SEA",
    "confidence": 0.555754,
    "source": "enhanced_prediction_before_inning_simulation"
  },
  "score_source": "enhanced_prediction.pre_simulation_target",
  "final_prediction_synced": true,
  "final_prediction_source": "pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "simulation_score_matches_prediction": false,
  "simulation_reconciliation": {
    "pre_simulation_score": {
      "away_runs": 3,
      "home_runs": 4,
      "score_text": "BAL 3 - 4 SEA",
      "winner": "SEA"
    },
    "final_simulation_score": {
      "away_runs": 2,
      "home_runs": 3,
      "score_text": "BAL 2 - 3 SEA",
      "winner": "SEA"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": -1,
    "home_run_delta": -1,
    "total_run_delta": -2,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}

Savant Batter Quality

Source: data/all_players_stats.csv embedded Savant hitter features. It adjusts team offense through expected production and contact quality, then records coverage so missing hitters are visible.

TeamAppliedOffense FactorRaw Avg FactorCoverage WeightCoveredMissing
Away BALTrue1.03821.0382190
Home SEATrue1.00481.0048190

Away Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
DHAdley Rutschman711.05610.7474neutral0.36000.28000.46208.904589.5014.5015.3013.8010.300.3429
1BPete Alonso791.11591.5447neutral0.37400.27300.521012.3055.7094.9014.1026.6022.8010.800.7429
SSGunnar Henderson991.01580.2108neutral0.31000.23700.40108.8045.6089.401224.6024.307.70-0.0857
LFTaylor Ward651.04780.6374neutral0.35600.25700.38204.8040.6089.6014.7017.4019.9018.500.2571
CSamuel Basallo871.04850.6469neutral0.34300.26400.475012.2045.9091.7013.7030.5025.108.500.0571
CFColton Cowser1991.00870.1162neutral0.31900.20900.436012.603286.4012.403329.3010.900.4000
RFLeody Taveras1550.9778-0.2964neutral0.29700.23400.3350429.508716.2024.9022.8010.30-0.6286
3BBlaze Alexander1221.04740.6326neutral0.35900.31300.46106.6047.1092.509.3027.5022.606.200.3429
2BJackson Holliday3901.02540.3382positive_batter_regression0.32400.22100.424015.4046.2089.6016.8032.9030.3011.200.8571

Home Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
RFDominic Canzone781.07040.9381neutral0.38900.29400.543015.8049.6093.3013.5029.20199-0.3429
DHCal Raleigh4121.00600.0805positive_batter_regression0.30000.18900.399012.5031.3087.4023.3030.5030.2010.601.2286
1BJosh Naylor4911.02560.3413neutral0.32300.27300.40405.2037.9087.8014.501912.807.800.5429
3BJ.P. Crawford1581.05300.7071neutral0.35700.25400.41609.2036.4088.4012.4017.3019.1014.900.4000
CMitch Garver2050.9948-0.0695neutral0.30100.19200.33606.9048.3089.6018.3034.4029.9015.900
2BCole Young391.03310.4408neutral0.32800.27400.41205.4038.5088.1016.2021.2018.506.600.6286
CFVictor Robles5420.9728-0.3628neutral0.26800.23200.35104.7020.9082.506.6018.4013.503.800.0857
SSColt Emerson1250.9489-0.6809negative_batter_regression0.23000.16300.26805.4028.6086.7016.5031.6029.706.60-2
LFMiles Mastrobuoni3250.9387-0.8179neutral0.19100.14400.1950023.1090.201023.5037.508.30-0.7143
Raw Savant Batter Quality JSON
{
  "home": {
    "applied": true,
    "offense_factor": 1.0048,
    "raw_average_factor": 1.0048,
    "team_espn_average_rank": 263.89,
    "coverage_weight": 1.0,
    "covered_batters": 9,
    "missing_batters": 0,
    "players": [
      {
        "position": "RF",
        "player_id": "686527",
        "player_name": "Dominic Canzone",
        "offense_factor": 1.0704,
        "quality_score": 0.9381,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "686527",
          "espn_id": 4345621,
          "player_name": "Dominic Canzone",
          "team": "SEA",
          "role": "batter",
          "espn_rank": 78,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 78,
            "gp_value": 66.0,
            "gp_rank": 132,
            "ab_value": 167.0,
            "ab_rank": 207,
            "r_value": 26.0,
            "r_rank": 158,
            "h_value": 49.0,
            "h_rank": 154,
            "avg_value": 0.2934131,
            "avg_rank": null,
            "2b_value": 12.0,
            "2b_rank": 80,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 11.0,
            "hr_rank": 55,
            "rbi_value": 31.0,
            "rbi_rank": 104,
            "tb_value": 96.0,
            "tb_rank": 543,
            "bb_value": 17.0,
            "bb_rank": 181,
            "so_value": 36.0,
            "so_rank": 226,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3650793,
            "obp_rank": "-",
            "slg_value": 0.5748502,
            "slg_rank": "-",
            "ops_value": 0.9399295,
            "ops_rank": null,
            "war_value": 1.58,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 124.0,
          "k_percent": 19.0,
          "bb_percent": 9.0,
          "woba": 0.401,
          "xwoba": 0.389,
          "xba": 0.294,
          "xslg": 0.543,
          "sweet_spot_percent": 39.8,
          "barrel_batted_rate": 15.8,
          "hard_hit_percent": 49.6,
          "exit_velocity_avg": 93.3,
          "launch_angle_avg": 13.5,
          "whiff_percent": 29.2,
          "swing_percent": 47.2
        },
        "components": {
          "expected_quality": 1.9912,
          "regression_edge": -0.3429,
          "xwoba_edge": 2.4286,
          "xba_edge": 1.5857,
          "xslg_edge": 2.4429,
          "barrel_edge": 2.0,
          "hard_hit_edge": 1.5857,
          "exit_velocity_edge": 1.8,
          "sweet_spot_edge": 1.0833,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "DH",
        "player_id": "663728",
        "player_name": "Cal Raleigh",
        "offense_factor": 1.006,
        "quality_score": 0.0805,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "663728",
          "espn_id": 41292,
          "player_name": "Cal Raleigh",
          "team": "SEA",
          "role": "batter",
          "espn_rank": 412,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 412,
            "gp_value": 43.0,
            "gp_rank": 280,
            "ab_value": 167.0,
            "ab_rank": 207,
            "r_value": 16.0,
            "r_rank": 254,
            "h_value": 28.0,
            "h_rank": 278,
            "avg_value": 0.1676646,
            "avg_rank": null,
            "2b_value": 4.0,
            "2b_rank": 307,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 20.0,
            "rbi_rank": 204,
            "tb_value": 53.0,
            "tb_rank": 1330,
            "bb_value": 20.0,
            "bb_rank": 146,
            "so_value": 57.0,
            "so_rank": 96,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.2539682,
            "obp_rank": "-",
            "slg_value": 0.3173652,
            "slg_rank": "-",
            "ops_value": 0.5713334,
            "ops_rank": null,
            "war_value": -0.12,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 181.0,
          "k_percent": 30.2,
          "bb_percent": 10.6,
          "woba": 0.257,
          "xwoba": 0.3,
          "xba": 0.189,
          "xslg": 0.399,
          "sweet_spot_percent": 33.9,
          "barrel_batted_rate": 12.5,
          "hard_hit_percent": 31.3,
          "exit_velocity_avg": 87.4,
          "launch_angle_avg": 23.3,
          "whiff_percent": 30.5,
          "swing_percent": 53.0
        },
        "components": {
          "expected_quality": -0.0862,
          "regression_edge": 1.2286,
          "xwoba_edge": -0.1143,
          "xba_edge": -1.4143,
          "xslg_edge": 0.3857,
          "barrel_edge": 1.2667,
          "hard_hit_edge": -1.0286,
          "exit_velocity_edge": -0.56,
          "sweet_spot_edge": 0.1,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "1B",
        "player_id": "647304",
        "player_name": "Josh Naylor",
        "offense_factor": 1.0256,
        "quality_score": 0.3413,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "647304",
          "espn_id": 35066,
          "player_name": "Josh Naylor",
          "team": "SEA",
          "role": "batter",
          "espn_rank": 491,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 491,
            "gp_value": 68.0,
            "gp_rank": 104,
            "ab_value": 269.0,
            "ab_rank": 39,
            "r_value": 27.0,
            "r_rank": 147,
            "h_value": 68.0,
            "h_rank": 61,
            "avg_value": 0.2527881,
            "avg_rank": 81.0,
            "2b_value": 8.0,
            "2b_rank": 188,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 8.0,
            "hr_rank": 98,
            "rbi_value": 32.0,
            "rbi_rank": 96,
            "tb_value": 100.0,
            "tb_rank": 931,
            "bb_value": 23.0,
            "bb_rank": 109,
            "so_value": 38.0,
            "so_rank": 208,
            "sb_value": 13.0,
            "sb_rank": 16,
            "obp_value": 0.3152542,
            "obp_rank": "107",
            "slg_value": 0.3717472,
            "slg_rank": "123",
            "ops_value": 0.6870014,
            "ops_rank": 16.0,
            "war_value": -0.36,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 225.0,
          "k_percent": 12.8,
          "bb_percent": 7.8,
          "woba": 0.304,
          "xwoba": 0.323,
          "xba": 0.273,
          "xslg": 0.404,
          "sweet_spot_percent": 31.0,
          "barrel_batted_rate": 5.2,
          "hard_hit_percent": 37.9,
          "exit_velocity_avg": 87.8,
          "launch_angle_avg": 14.5,
          "whiff_percent": 19.0,
          "swing_percent": 52.8
        },
        "components": {
          "expected_quality": 0.3085,
          "regression_edge": 0.5429,
          "xwoba_edge": 0.5429,
          "xba_edge": 0.9857,
          "xslg_edge": 0.4571,
          "barrel_edge": -0.3556,
          "hard_hit_edge": -0.0857,
          "exit_velocity_edge": -0.4,
          "sweet_spot_edge": -0.3833,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "3B",
        "player_id": "641487",
        "player_name": "J.P. Crawford",
        "offense_factor": 1.053,
        "quality_score": 0.7071,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "641487",
          "espn_id": 33210,
          "player_name": "J.P. Crawford",
          "team": "SEA",
          "role": "batter",
          "espn_rank": 158,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 158,
            "gp_value": 57.0,
            "gp_rank": 195,
            "ab_value": 199.0,
            "ab_rank": 159,
            "r_value": 31.0,
            "r_rank": 109,
            "h_value": 45.0,
            "h_rank": 177,
            "avg_value": 0.2261306,
            "avg_rank": 133.0,
            "2b_value": 5.0,
            "2b_rank": 259,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 10.0,
            "hr_rank": 69,
            "rbi_value": 23.0,
            "rbi_rank": 182,
            "tb_value": 80.0,
            "tb_rank": 1031,
            "bb_value": 36.0,
            "bb_rank": 35,
            "so_value": 46.0,
            "so_rank": 151,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3568464,
            "obp_rank": "44",
            "slg_value": 0.40201,
            "slg_rank": "102",
            "ops_value": 0.7588564,
            "ops_rank": 146.0,
            "war_value": 0.8,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 202.0,
          "k_percent": 19.1,
          "bb_percent": 14.9,
          "woba": 0.343,
          "xwoba": 0.357,
          "xba": 0.254,
          "xslg": 0.416,
          "sweet_spot_percent": 39.6,
          "barrel_batted_rate": 9.2,
          "hard_hit_percent": 36.4,
          "exit_velocity_avg": 88.4,
          "launch_angle_avg": 12.4,
          "whiff_percent": 17.3,
          "swing_percent": 37.9
        },
        "components": {
          "expected_quality": 0.8304,
          "regression_edge": 0.4,
          "xwoba_edge": 1.5143,
          "xba_edge": 0.4429,
          "xslg_edge": 0.6286,
          "barrel_edge": 0.5333,
          "hard_hit_edge": -0.3,
          "exit_velocity_edge": -0.16,
          "sweet_spot_edge": 1.05,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "C",
        "player_id": "641598",
        "player_name": "Mitch Garver",
        "offense_factor": 0.9948,
        "quality_score": -0.0695,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "641598",
          "espn_id": 33667,
          "player_name": "Mitch Garver",
          "team": "SEA",
          "role": "batter",
          "espn_rank": 205,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 205,
            "gp_value": 35.0,
            "gp_rank": 331,
            "ab_value": 90.0,
            "ab_rank": 342,
            "r_value": 14.0,
            "r_rank": 287,
            "h_value": 18.0,
            "h_rank": 351,
            "avg_value": 0.2,
            "avg_rank": null,
            "2b_value": 2.0,
            "2b_rank": 387,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 3.0,
            "hr_rank": 243,
            "rbi_value": 11.0,
            "rbi_rank": 306,
            "tb_value": 29.0,
            "tb_rank": 1855,
            "bb_value": 17.0,
            "bb_rank": 181,
            "so_value": 32.0,
            "so_rank": 259,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3271028,
            "obp_rank": "-",
            "slg_value": 0.3222222,
            "slg_rank": "-",
            "ops_value": 0.649325,
            "ops_rank": null,
            "war_value": 0.52,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 84.0,
          "k_percent": 29.9,
          "bb_percent": 15.9,
          "woba": 0.301,
          "xwoba": 0.301,
          "xba": 0.192,
          "xslg": 0.336,
          "sweet_spot_percent": 22.4,
          "barrel_batted_rate": 6.9,
          "hard_hit_percent": 48.3,
          "exit_velocity_avg": 89.6,
          "launch_angle_avg": 18.3,
          "whiff_percent": 34.4,
          "swing_percent": 42.2
        },
        "components": {
          "expected_quality": -0.1795,
          "regression_edge": 0.0,
          "xwoba_edge": -0.0857,
          "xba_edge": -1.3286,
          "xslg_edge": -0.5143,
          "barrel_edge": 0.0222,
          "hard_hit_edge": 1.4,
          "exit_velocity_edge": 0.32,
          "sweet_spot_edge": -1.8167,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "2B",
        "player_id": "702284",
        "player_name": "Cole Young",
        "offense_factor": 1.0331,
        "quality_score": 0.4408,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "702284",
          "espn_id": 5080641,
          "player_name": "Cole Young",
          "team": "SEA",
          "role": "batter",
          "espn_rank": 39,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 39,
            "gp_value": 75.0,
            "gp_rank": 1,
            "ab_value": 273.0,
            "ab_rank": 31,
            "r_value": 32.0,
            "r_rank": 99,
            "h_value": 70.0,
            "h_rank": 50,
            "avg_value": 0.2564102,
            "avg_rank": 74.0,
            "2b_value": 10.0,
            "2b_rank": 125,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 6.0,
            "hr_rank": 156,
            "rbi_value": 33.0,
            "rbi_rank": 88,
            "tb_value": 100.0,
            "tb_rank": 787,
            "bb_value": 20.0,
            "bb_rank": 146,
            "so_value": 56.0,
            "so_rank": 99,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.3178807,
            "obp_rank": "99",
            "slg_value": 0.3663003,
            "slg_rank": "126",
            "ops_value": 0.684181,
            "ops_rank": 225.0,
            "war_value": 2.28,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 220.0,
          "k_percent": 18.5,
          "bb_percent": 6.6,
          "woba": 0.306,
          "xwoba": 0.328,
          "xba": 0.274,
          "xslg": 0.412,
          "sweet_spot_percent": 35.7,
          "barrel_batted_rate": 5.4,
          "hard_hit_percent": 38.5,
          "exit_velocity_avg": 88.1,
          "launch_angle_avg": 16.2,
          "whiff_percent": 21.2,
          "swing_percent": 48.0
        },
        "components": {
          "expected_quality": 0.4102,
          "regression_edge": 0.6286,
          "xwoba_edge": 0.6857,
          "xba_edge": 1.0143,
          "xslg_edge": 0.5714,
          "barrel_edge": -0.3111,
          "hard_hit_edge": 0.0,
          "exit_velocity_edge": -0.28,
          "sweet_spot_edge": 0.4,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "CF",
        "player_id": "645302",
        "player_name": "Victor Robles",
        "offense_factor": 0.9728,
        "quality_score": -0.3628,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "645302",
          "espn_id": 35042,
          "player_name": "Victor Robles",
          "team": "SEA",
          "role": "batter",
          "espn_rank": 542,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 542,
            "gp_value": 22.0,
            "gp_rank": 400,
            "ab_value": 50.0,
            "ab_rank": 412,
            "r_value": 4.0,
            "r_rank": 435,
            "h_value": 13.0,
            "h_rank": 389,
            "avg_value": 0.26,
            "avg_rank": null,
            "2b_value": 2.0,
            "2b_rank": 387,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 0.0,
            "hr_rank": 441,
            "rbi_value": 2.0,
            "rbi_rank": 466,
            "tb_value": 15.0,
            "tb_rank": 2487,
            "bb_value": 2.0,
            "bb_rank": 442,
            "so_value": 7.0,
            "so_rank": 474,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.2884615,
            "obp_rank": "-",
            "slg_value": 0.3,
            "slg_rank": "-",
            "ops_value": 0.5884615,
            "ops_rank": null,
            "war_value": -0.6,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 24.0,
          "k_percent": 13.5,
          "bb_percent": 3.8,
          "woba": 0.265,
          "xwoba": 0.268,
          "xba": 0.232,
          "xslg": 0.351,
          "sweet_spot_percent": 18.6,
          "barrel_batted_rate": 4.7,
          "hard_hit_percent": 20.9,
          "exit_velocity_avg": 82.5,
          "launch_angle_avg": 6.6,
          "whiff_percent": 18.4,
          "swing_percent": 53.3
        },
        "components": {
          "expected_quality": -0.9514,
          "regression_edge": 0.0857,
          "xwoba_edge": -1.0286,
          "xba_edge": -0.1857,
          "xslg_edge": -0.3,
          "barrel_edge": -0.4667,
          "hard_hit_edge": -2.5,
          "exit_velocity_edge": -2.5,
          "sweet_spot_edge": -2.45,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "SS",
        "player_id": "806068",
        "player_name": "Colt Emerson",
        "offense_factor": 0.9489,
        "quality_score": -0.6809,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "806068",
          "espn_id": 5149068,
          "player_name": "Colt Emerson",
          "team": "SEA",
          "role": "batter",
          "espn_rank": 125,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 125,
            "gp_value": 25.0,
            "gp_rank": 384,
            "ab_value": 83.0,
            "ab_rank": 356,
            "r_value": 13.0,
            "r_rank": 302,
            "h_value": 19.0,
            "h_rank": 345,
            "avg_value": 0.2289156,
            "avg_rank": null,
            "2b_value": 5.0,
            "2b_rank": 259,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 6.0,
            "hr_rank": 156,
            "rbi_value": 14.0,
            "rbi_rank": 266,
            "tb_value": 44.0,
            "tb_rank": 1216,
            "bb_value": 6.0,
            "bb_rank": 359,
            "so_value": 27.0,
            "so_rank": 293,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.2967032,
            "obp_rank": "-",
            "slg_value": 0.5301204,
            "slg_rank": "-",
            "ops_value": 0.8268236,
            "ops_rank": null,
            "war_value": 1.04,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 32.0,
          "k_percent": 29.7,
          "bb_percent": 6.6,
          "woba": 0.354,
          "xwoba": 0.23,
          "xba": 0.163,
          "xslg": 0.268,
          "sweet_spot_percent": 35.7,
          "barrel_batted_rate": 5.4,
          "hard_hit_percent": 28.6,
          "exit_velocity_avg": 86.7,
          "launch_angle_avg": 16.5,
          "whiff_percent": 31.6,
          "swing_percent": 50.4
        },
        "components": {
          "expected_quality": -1.434,
          "regression_edge": -2.0,
          "xwoba_edge": -2.1143,
          "xba_edge": -2.1571,
          "xslg_edge": -1.4857,
          "barrel_edge": -0.3111,
          "hard_hit_edge": -1.4143,
          "exit_velocity_edge": -0.84,
          "sweet_spot_edge": 0.4,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "LF",
        "player_id": "670156",
        "player_name": "Miles Mastrobuoni",
        "offense_factor": 0.9387,
        "quality_score": -0.8179,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "670156",
          "espn_id": 40900,
          "player_name": "Miles Mastrobuoni",
          "team": "SEA",
          "role": "batter",
          "espn_rank": 325,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 325,
            "gp_value": 7.0,
            "gp_rank": 514,
            "ab_value": 20.0,
            "ab_rank": 498,
            "r_value": 3.0,
            "r_rank": 447,
            "h_value": 4.0,
            "h_rank": 483,
            "avg_value": 0.2,
            "avg_rank": null,
            "2b_value": 0.0,
            "2b_rank": 486,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 0.0,
            "hr_rank": 441,
            "rbi_value": 1.0,
            "rbi_rank": 498,
            "tb_value": 4.0,
            "tb_rank": 2680,
            "bb_value": 2.0,
            "bb_rank": 442,
            "so_value": 9.0,
            "so_rank": 452,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.2608695,
            "obp_rank": "-",
            "slg_value": 0.2,
            "slg_rank": "-",
            "ops_value": 0.4608695,
            "ops_rank": null,
            "war_value": 0.04,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 0.0,
          "k_percent": 37.5,
          "bb_percent": 8.3,
          "woba": 0.216,
          "xwoba": 0.191,
          "xba": 0.144,
          "xslg": 0.195,
          "sweet_spot_percent": 23.1,
          "barrel_batted_rate": 0.0,
          "hard_hit_percent": 23.1,
          "exit_velocity_avg": 90.2,
          "launch_angle_avg": 10.0,
          "whiff_percent": 23.5,
          "swing_percent": 37.8
        },
        "components": {
          "expected_quality": -1.9971,
          "regression_edge": -0.7143,
          "xwoba_edge": -2.5,
          "xba_edge": -2.5,
          "xslg_edge": -2.5,
          "barrel_edge": -1.5111,
          "hard_hit_edge": -2.2,
          "exit_velocity_edge": 0.56,
          "sweet_spot_edge": -1.7,
          "launch_angle_hr_bonus": 0.2
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "away": {
    "applied": true,
    "offense_factor": 1.0382,
    "raw_average_factor": 1.0382,
    "team_espn_average_rank": 140.78,
    "coverage_weight": 1.0,
    "covered_batters": 9,
    "missing_batters": 0,
    "players": [
      {
        "position": "DH",
        "player_id": "668939",
        "player_name": "Adley Rutschman",
        "offense_factor": 1.0561,
        "quality_score": 0.7474,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "668939",
          "espn_id": 42178,
          "player_name": "Adley Rutschman",
          "team": "BAL",
          "role": "batter",
          "espn_rank": 71,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 71,
            "gp_value": 53.0,
            "gp_rank": 216,
            "ab_value": 197.0,
            "ab_rank": 163,
            "r_value": 26.0,
            "r_rank": 158,
            "h_value": 51.0,
            "h_rank": 142,
            "avg_value": 0.2588832,
            "avg_rank": null,
            "2b_value": 15.0,
            "2b_rank": 27,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 8.0,
            "hr_rank": 98,
            "rbi_value": 40.0,
            "rbi_rank": 41,
            "tb_value": 92.0,
            "tb_rank": 607,
            "bb_value": 23.0,
            "bb_rank": 109,
            "so_value": 31.0,
            "so_rank": 266,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3348214,
            "obp_rank": "-",
            "slg_value": 0.467005,
            "slg_rank": "-",
            "ops_value": 0.8018264,
            "ops_rank": null,
            "war_value": 1.64,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 158.0,
          "k_percent": 13.8,
          "bb_percent": 10.3,
          "woba": 0.348,
          "xwoba": 0.36,
          "xba": 0.28,
          "xslg": 0.462,
          "sweet_spot_percent": 37.9,
          "barrel_batted_rate": 8.9,
          "hard_hit_percent": 45.0,
          "exit_velocity_avg": 89.5,
          "launch_angle_avg": 14.5,
          "whiff_percent": 15.3,
          "swing_percent": 41.7
        },
        "components": {
          "expected_quality": 1.1543,
          "regression_edge": 0.3429,
          "xwoba_edge": 1.6,
          "xba_edge": 1.1857,
          "xslg_edge": 1.2857,
          "barrel_edge": 0.4667,
          "hard_hit_edge": 0.9286,
          "exit_velocity_edge": 0.28,
          "sweet_spot_edge": 0.7667,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "1B",
        "player_id": "624413",
        "player_name": "Pete Alonso",
        "offense_factor": 1.1159,
        "quality_score": 1.5447,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "624413",
          "espn_id": 37498,
          "player_name": "Pete Alonso",
          "team": "BAL",
          "role": "batter",
          "espn_rank": 79,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 79,
            "gp_value": 75.0,
            "gp_rank": 1,
            "ab_value": 283.0,
            "ab_rank": 19,
            "r_value": 45.0,
            "r_rank": 26,
            "h_value": 71.0,
            "h_rank": 46,
            "avg_value": 0.2508833,
            "avg_rank": 85.0,
            "2b_value": 13.0,
            "2b_rank": 61,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 16.0,
            "hr_rank": 17,
            "rbi_value": 48.0,
            "rbi_rank": 14,
            "tb_value": 132.0,
            "tb_rank": 546,
            "bb_value": 35.0,
            "bb_rank": 37,
            "so_value": 74.0,
            "so_rank": 34,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.3364197,
            "obp_rank": "80",
            "slg_value": 0.466431,
            "slg_rank": "47",
            "ops_value": 0.8028507,
            "ops_rank": 33.0,
            "war_value": 1.57,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 240.0,
          "k_percent": 22.8,
          "bb_percent": 10.8,
          "woba": 0.348,
          "xwoba": 0.374,
          "xba": 0.273,
          "xslg": 0.521,
          "sweet_spot_percent": 32.1,
          "barrel_batted_rate": 12.3,
          "hard_hit_percent": 55.7,
          "exit_velocity_avg": 94.9,
          "launch_angle_avg": 14.1,
          "whiff_percent": 26.6,
          "swing_percent": 44.5
        },
        "components": {
          "expected_quality": 1.6752,
          "regression_edge": 0.7429,
          "xwoba_edge": 2.0,
          "xba_edge": 0.9857,
          "xslg_edge": 2.1286,
          "barrel_edge": 1.2222,
          "hard_hit_edge": 2.4571,
          "exit_velocity_edge": 2.44,
          "sweet_spot_edge": -0.2,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "SS",
        "player_id": "683002",
        "player_name": "Gunnar Henderson",
        "offense_factor": 1.0158,
        "quality_score": 0.2108,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "683002",
          "espn_id": 42507,
          "player_name": "Gunnar Henderson",
          "team": "BAL",
          "role": "batter",
          "espn_rank": 99,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 99,
            "gp_value": 74.0,
            "gp_rank": 13,
            "ab_value": 307.0,
            "ab_rank": 1,
            "r_value": 40.0,
            "r_rank": 50,
            "h_value": 69.0,
            "h_rank": 55,
            "avg_value": 0.2247557,
            "avg_rank": 136.0,
            "2b_value": 13.0,
            "2b_rank": 61,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 15.0,
            "hr_rank": 23,
            "rbi_value": 36.0,
            "rbi_rank": 63,
            "tb_value": 129.0,
            "tb_rank": 329,
            "bb_value": 26.0,
            "bb_rank": 82,
            "so_value": 82.0,
            "so_rank": 18,
            "sb_value": 6.0,
            "sb_rank": 79,
            "obp_value": 0.2928994,
            "obp_rank": "141",
            "slg_value": 0.4201954,
            "slg_rank": "83",
            "ops_value": 0.7130948,
            "ops_rank": 224.0,
            "war_value": 1.27,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 251.0,
          "k_percent": 24.3,
          "bb_percent": 7.7,
          "woba": 0.313,
          "xwoba": 0.31,
          "xba": 0.237,
          "xslg": 0.401,
          "sweet_spot_percent": 30.1,
          "barrel_batted_rate": 8.8,
          "hard_hit_percent": 45.6,
          "exit_velocity_avg": 89.4,
          "launch_angle_avg": 12.0,
          "whiff_percent": 24.6,
          "swing_percent": 49.0
        },
        "components": {
          "expected_quality": 0.2591,
          "regression_edge": -0.0857,
          "xwoba_edge": 0.1714,
          "xba_edge": -0.0429,
          "xslg_edge": 0.4143,
          "barrel_edge": 0.4444,
          "hard_hit_edge": 1.0143,
          "exit_velocity_edge": 0.24,
          "sweet_spot_edge": -0.5333,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "LF",
        "player_id": "621493",
        "player_name": "Taylor Ward",
        "offense_factor": 1.0478,
        "quality_score": 0.6374,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "621493",
          "espn_id": 34923,
          "player_name": "Taylor Ward",
          "team": "BAL",
          "role": "batter",
          "espn_rank": 65,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 65,
            "gp_value": 74.0,
            "gp_rank": 13,
            "ab_value": 273.0,
            "ab_rank": 31,
            "r_value": 46.0,
            "r_rank": 21,
            "h_value": 70.0,
            "h_rank": 50,
            "avg_value": 0.2564102,
            "avg_rank": 74.0,
            "2b_value": 17.0,
            "2b_rank": 12,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 3.0,
            "hr_rank": 243,
            "rbi_value": 20.0,
            "rbi_rank": 204,
            "tb_value": 96.0,
            "tb_rank": 1179,
            "bb_value": 63.0,
            "bb_rank": 3,
            "so_value": 68.0,
            "so_rank": 50,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.3988269,
            "obp_rank": "6",
            "slg_value": 0.3516483,
            "slg_rank": "138",
            "ops_value": 0.7504752,
            "ops_rank": 132.0,
            "war_value": 1.74,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 249.0,
          "k_percent": 19.9,
          "bb_percent": 18.5,
          "woba": 0.347,
          "xwoba": 0.356,
          "xba": 0.257,
          "xslg": 0.382,
          "sweet_spot_percent": 35.3,
          "barrel_batted_rate": 4.8,
          "hard_hit_percent": 40.6,
          "exit_velocity_avg": 89.6,
          "launch_angle_avg": 14.7,
          "whiff_percent": 17.4,
          "swing_percent": 32.3
        },
        "components": {
          "expected_quality": 0.6993,
          "regression_edge": 0.2571,
          "xwoba_edge": 1.4857,
          "xba_edge": 0.5286,
          "xslg_edge": 0.1429,
          "barrel_edge": -0.4444,
          "hard_hit_edge": 0.3,
          "exit_velocity_edge": 0.32,
          "sweet_spot_edge": 0.3333,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "C",
        "player_id": "694212",
        "player_name": "Samuel Basallo",
        "offense_factor": 1.0485,
        "quality_score": 0.6469,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "694212",
          "espn_id": 4917646,
          "player_name": "Samuel Basallo",
          "team": "BAL",
          "role": "batter",
          "espn_rank": 87,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 87,
            "gp_value": 62.0,
            "gp_rank": 163,
            "ab_value": 202.0,
            "ab_rank": 153,
            "r_value": 27.0,
            "r_rank": 147,
            "h_value": 53.0,
            "h_rank": 132,
            "avg_value": 0.2623762,
            "avg_rank": null,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 10.0,
            "hr_rank": 69,
            "rbi_value": 30.0,
            "rbi_rank": 113,
            "tb_value": 94.0,
            "tb_rank": 637,
            "bb_value": 19.0,
            "bb_rank": 161,
            "so_value": 56.0,
            "so_rank": 99,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3228699,
            "obp_rank": "-",
            "slg_value": 0.4653465,
            "slg_rank": "-",
            "ops_value": 0.7882164,
            "ops_rank": null,
            "war_value": 1.39,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 158.0,
          "k_percent": 25.1,
          "bb_percent": 8.5,
          "woba": 0.341,
          "xwoba": 0.343,
          "xba": 0.264,
          "xslg": 0.475,
          "sweet_spot_percent": 35.1,
          "barrel_batted_rate": 12.2,
          "hard_hit_percent": 45.9,
          "exit_velocity_avg": 91.7,
          "launch_angle_avg": 13.7,
          "whiff_percent": 30.5,
          "swing_percent": 52.7
        },
        "components": {
          "expected_quality": 1.038,
          "regression_edge": 0.0571,
          "xwoba_edge": 1.1143,
          "xba_edge": 0.7286,
          "xslg_edge": 1.4714,
          "barrel_edge": 1.2,
          "hard_hit_edge": 1.0571,
          "exit_velocity_edge": 1.16,
          "sweet_spot_edge": 0.3,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "CF",
        "player_id": "681297",
        "player_name": "Colton Cowser",
        "offense_factor": 1.0087,
        "quality_score": 0.1162,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "681297",
          "espn_id": 4416990,
          "player_name": "Colton Cowser",
          "team": "BAL",
          "role": "batter",
          "espn_rank": 199,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 199,
            "gp_value": 64.0,
            "gp_rank": 146,
            "ab_value": 151.0,
            "ab_rank": 240,
            "r_value": 23.0,
            "r_rank": 182,
            "h_value": 33.0,
            "h_rank": 246,
            "avg_value": 0.218543,
            "avg_rank": null,
            "2b_value": 3.0,
            "2b_rank": 356,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 23.0,
            "rbi_rank": 182,
            "tb_value": 57.0,
            "tb_rank": 1347,
            "bb_value": 19.0,
            "bb_rank": 161,
            "so_value": 51.0,
            "so_rank": 129,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.3063583,
            "obp_rank": "-",
            "slg_value": 0.3774834,
            "slg_rank": "-",
            "ops_value": 0.6838417,
            "ops_rank": null,
            "war_value": 0.54,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 109.0,
          "k_percent": 29.3,
          "bb_percent": 10.9,
          "woba": 0.305,
          "xwoba": 0.319,
          "xba": 0.209,
          "xslg": 0.436,
          "sweet_spot_percent": 30.1,
          "barrel_batted_rate": 12.6,
          "hard_hit_percent": 32.0,
          "exit_velocity_avg": 86.4,
          "launch_angle_avg": 12.4,
          "whiff_percent": 33.0,
          "swing_percent": 44.2
        },
        "components": {
          "expected_quality": 0.2076,
          "regression_edge": 0.4,
          "xwoba_edge": 0.4286,
          "xba_edge": -0.8429,
          "xslg_edge": 0.9143,
          "barrel_edge": 1.2889,
          "hard_hit_edge": -0.9286,
          "exit_velocity_edge": -0.96,
          "sweet_spot_edge": -0.5333,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "RF",
        "player_id": "665750",
        "player_name": "Leody Taveras",
        "offense_factor": 0.9778,
        "quality_score": -0.2964,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "665750",
          "espn_id": 34951,
          "player_name": "Leody Taveras",
          "team": "BAL",
          "role": "batter",
          "espn_rank": 155,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 155,
            "gp_value": 63.0,
            "gp_rank": 156,
            "ab_value": 192.0,
            "ab_rank": 170,
            "r_value": 26.0,
            "r_rank": 158,
            "h_value": 49.0,
            "h_rank": 154,
            "avg_value": 0.2552083,
            "avg_rank": null,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 4.0,
            "3b_rank": 3,
            "hr_value": 2.0,
            "hr_rank": 301,
            "rbi_value": 29.0,
            "rbi_rank": 122,
            "tb_value": 72.0,
            "tb_rank": 1217,
            "bb_value": 23.0,
            "bb_rank": 109,
            "so_value": 51.0,
            "so_rank": 129,
            "sb_value": 8.0,
            "sb_rank": 55,
            "obp_value": 0.3364055,
            "obp_rank": "-",
            "slg_value": 0.375,
            "slg_rank": "-",
            "ops_value": 0.7114055,
            "ops_rank": null,
            "war_value": 0.84,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 157.0,
          "k_percent": 22.8,
          "bb_percent": 10.3,
          "woba": 0.319,
          "xwoba": 0.297,
          "xba": 0.234,
          "xslg": 0.335,
          "sweet_spot_percent": 33.6,
          "barrel_batted_rate": 4.0,
          "hard_hit_percent": 29.5,
          "exit_velocity_avg": 87.0,
          "launch_angle_avg": 16.2,
          "whiff_percent": 24.9,
          "swing_percent": 47.2
        },
        "components": {
          "expected_quality": -0.3807,
          "regression_edge": -0.6286,
          "xwoba_edge": -0.2,
          "xba_edge": -0.1286,
          "xslg_edge": -0.5286,
          "barrel_edge": -0.6222,
          "hard_hit_edge": -1.2857,
          "exit_velocity_edge": -0.72,
          "sweet_spot_edge": 0.05,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "3B",
        "player_id": "677942",
        "player_name": "Blaze Alexander",
        "offense_factor": 1.0474,
        "quality_score": 0.6326,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "677942",
          "espn_id": 41345,
          "player_name": "Blaze Alexander",
          "team": "BAL",
          "role": "batter",
          "espn_rank": 122,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 122,
            "gp_value": 63.0,
            "gp_rank": 156,
            "ab_value": 158.0,
            "ab_rank": 228,
            "r_value": 20.0,
            "r_rank": 213,
            "h_value": 49.0,
            "h_rank": 154,
            "avg_value": 0.3101265,
            "avg_rank": null,
            "2b_value": 10.0,
            "2b_rank": 125,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 2.0,
            "hr_rank": 301,
            "rbi_value": 19.0,
            "rbi_rank": 216,
            "tb_value": 67.0,
            "tb_rank": 1326,
            "bb_value": 11.0,
            "bb_rank": 271,
            "so_value": 40.0,
            "so_rank": 193,
            "sb_value": 8.0,
            "sb_rank": 55,
            "obp_value": 0.3641618,
            "obp_rank": "-",
            "slg_value": 0.4240506,
            "slg_rank": "-",
            "ops_value": 0.7882124,
            "ops_rank": null,
            "war_value": 1.05,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 126.0,
          "k_percent": 22.6,
          "bb_percent": 6.2,
          "woba": 0.347,
          "xwoba": 0.359,
          "xba": 0.313,
          "xslg": 0.461,
          "sweet_spot_percent": 43.0,
          "barrel_batted_rate": 6.6,
          "hard_hit_percent": 47.1,
          "exit_velocity_avg": 92.5,
          "launch_angle_avg": 9.3,
          "whiff_percent": 27.5,
          "swing_percent": 56.3
        },
        "components": {
          "expected_quality": 1.2286,
          "regression_edge": 0.3429,
          "xwoba_edge": 1.5714,
          "xba_edge": 2.1286,
          "xslg_edge": 1.2714,
          "barrel_edge": -0.0444,
          "hard_hit_edge": 1.2286,
          "exit_velocity_edge": 1.48,
          "sweet_spot_edge": 1.6167,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "2B",
        "player_id": "702616",
        "player_name": "Jackson Holliday",
        "offense_factor": 1.0254,
        "quality_score": 0.3382,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "702616",
          "espn_id": 5080633,
          "player_name": "Jackson Holliday",
          "team": "BAL",
          "role": "batter",
          "espn_rank": 390,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 390,
            "gp_value": 26.0,
            "gp_rank": 382,
            "ab_value": 77.0,
            "ab_rank": 366,
            "r_value": 13.0,
            "r_rank": 302,
            "h_value": 15.0,
            "h_rank": 370,
            "avg_value": 0.1948051,
            "avg_rank": null,
            "2b_value": 1.0,
            "2b_rank": 430,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 4.0,
            "hr_rank": 203,
            "rbi_value": 12.0,
            "rbi_rank": 292,
            "tb_value": 30.0,
            "tb_rank": 1553,
            "bb_value": 10.0,
            "bb_rank": 282,
            "so_value": 27.0,
            "so_rank": 293,
            "sb_value": 3.0,
            "sb_rank": 148,
            "obp_value": 0.2808988,
            "obp_rank": "-",
            "slg_value": 0.3896103,
            "slg_rank": "-",
            "ops_value": 0.6705091,
            "ops_rank": null,
            "war_value": -0.08,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 25.0,
          "k_percent": 30.3,
          "bb_percent": 11.2,
          "woba": 0.294,
          "xwoba": 0.324,
          "xba": 0.221,
          "xslg": 0.424,
          "sweet_spot_percent": 46.2,
          "barrel_batted_rate": 15.4,
          "hard_hit_percent": 46.2,
          "exit_velocity_avg": 89.6,
          "launch_angle_avg": 16.8,
          "whiff_percent": 32.9,
          "swing_percent": 44.7
        },
        "components": {
          "expected_quality": 0.7344,
          "regression_edge": 0.8571,
          "xwoba_edge": 0.5714,
          "xba_edge": -0.5,
          "xslg_edge": 0.7429,
          "barrel_edge": 1.9111,
          "hard_hit_edge": 1.1,
          "exit_velocity_edge": 0.32,
          "sweet_spot_edge": 2.15,
          "launch_angle_hr_bonus": 0.2
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "reason": "Baseball Savant hitter xwOBA, xBA, xSLG, exit velocity, launch angle, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted offense; ESPN rank is attached for reporting only"
}

Savant Pitcher Quality

Source: data/all_players_stats.csv embedded Savant pitcher and movement features. Starter quality modifies opposing run scoring and pitcher strikeout/walk/homer expectations.

TeamPitcherAvailableESPN RankQualitySample WtRun PrevK FactorBB FactorHR FactorRegressionxwOBAwOBAK%BB%Whiff%Barrel%HardHit%
Away BALTrue150-0.446911.03800.95260.99601.0606neutral0.33800.331018.909218.7041.10
Home SEATrue1750.261010.977810.90801.0100neutral0.28600.2730244.6024.207.3044.40

Pitch Movement And Arsenal

TeamPitcherMovement AvailablePrimary PitchPitchesVeloSpinAxisHBIVBDropRel XRel ZExtensionArm AngleMovement Score
Away BALTrueNone10390.912440000000000.0663
Home SEATrueNone9592.512287000000000.1559
Run FactorValue
away_runs_vs_home_pitcher0.9778
home_runs_vs_away_pitcher1.0380
home_pitcher_quality_edge0.7079
Raw Savant Pitcher Quality JSON
{
  "applied": true,
  "home_pitcher": {
    "available": true,
    "pitcher_id": "693433",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 255.0,
      "k_percent": 24.0,
      "bb_percent": 4.6,
      "woba": 0.273,
      "xwoba": 0.286,
      "sweet_spot_percent": 32.3,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 44.4,
      "avg_best_speed": 78.7832,
      "avg_hyper_speed": 94.57,
      "whiff_percent": 24.2,
      "swing_percent": 54.0
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": 0.3934,
      "command_and_miss": 0.2514,
      "regression_edge": -0.3714,
      "xwoba_edge": 0.8286,
      "barrel_edge": 0.0,
      "hard_hit_edge": -0.8714,
      "whiff_edge": -0.2143,
      "bb_edge": 1.15,
      "pitch_design_score": 0.1559
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "693433",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 95,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 95,
        "pitch_usage": 0.0,
        "release_speed": 92.51294588187733,
        "release_spin_rate": 2286.8316876099384,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 95,
          "pitch_usage": 0.0,
          "release_speed": 92.51294588187733,
          "release_spin_rate": 2286.8316876099384,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 92.5129,
        "release_spin_rate": 2286.8317,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": 0.1559,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": 1.1136,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": 0.261,
    "sample_weight": 1.0,
    "run_prevention_factor": 0.9778,
    "strikeout_factor": 1.0,
    "walk_factor": 0.908,
    "homer_factor": 1.01,
    "woba_minus_xwoba": -0.013,
    "regression_flag": "neutral",
    "espn_rank": {
      "available": true,
      "player_id": "693433",
      "espn_id": 4629089,
      "player_name": "Bryan Woo",
      "team": "SEA",
      "role": "pitcher",
      "espn_rank": 175,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 175,
        "gp_value": 14.0,
        "gp_rank": 279,
        "gs_value": 14.0,
        "gs_rank": 37,
        "qs_value": 8.0,
        "qs_rank": 15,
        "era_value": 4.2804,
        "era_rank": 54.0,
        "w_value": 5.0,
        "w_rank": 39,
        "l_value": 5.0,
        "l_rank": 36,
        "sv_value": 0.0,
        "sv_rank": 172,
        "hld_value": 0.0,
        "hld_rank": 256,
        "ip_value": 82.0,
        "ip_rank": 30,
        "h_value": 70.0,
        "h_rank": 51,
        "er_value": 39.0,
        "er_rank": 29,
        "hr_value": 9.0,
        "hr_rank": 59,
        "bb_value": 15.0,
        "bb_rank": 191,
        "k_value": 79.0,
        "k_rank": 34,
        "k_per_9_value": 8.6707325,
        "k_per_9_rank": 30,
        "whip_value": 1.0365,
        "whip_rank": 14.0,
        "war_value": 0.57,
        "war_rank": 1.0
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "away_pitcher": {
    "available": true,
    "pitcher_id": "669358",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 255.0,
      "k_percent": 18.9,
      "bb_percent": 9.0,
      "woba": 0.331,
      "xwoba": 0.338,
      "sweet_spot_percent": 37.2,
      "barrel_batted_rate": 8.7,
      "hard_hit_percent": 41.1,
      "avg_best_speed": 80.2175,
      "avg_hyper_speed": 94.691,
      "whiff_percent": 21.0,
      "swing_percent": 47.4
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": -0.5599,
      "command_and_miss": -0.4564,
      "regression_edge": -0.2,
      "xwoba_edge": -0.6571,
      "barrel_edge": -0.3111,
      "hard_hit_edge": -0.4,
      "whiff_edge": -0.6714,
      "bb_edge": 0.05,
      "pitch_design_score": 0.0663
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "669358",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 103,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 103,
        "pitch_usage": 0.0,
        "release_speed": 90.9127128699343,
        "release_spin_rate": 2439.6068049668584,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 103,
          "pitch_usage": 0.0,
          "release_speed": 90.9127128699343,
          "release_spin_rate": 2439.6068049668584,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 90.9127,
        "release_spin_rate": 2439.6068,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": 0.0663,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": 0.4735,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": -0.4469,
    "sample_weight": 1.0,
    "run_prevention_factor": 1.038,
    "strikeout_factor": 0.9526,
    "walk_factor": 0.996,
    "homer_factor": 1.0606,
    "woba_minus_xwoba": -0.007,
    "regression_flag": "neutral",
    "espn_rank": {
      "available": true,
      "player_id": "669358",
      "espn_id": 39639,
      "player_name": "Shane Baz",
      "team": "BAL",
      "role": "pitcher",
      "espn_rank": 150,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 150,
        "gp_value": 14.0,
        "gp_rank": 279,
        "gs_value": 14.0,
        "gs_rank": 37,
        "qs_value": 4.0,
        "qs_rank": 73,
        "era_value": 4.0609,
        "era_rank": 43.0,
        "w_value": 4.0,
        "w_rank": 65,
        "l_value": 6.0,
        "l_rank": 17,
        "sv_value": 0.0,
        "sv_rank": 172,
        "hld_value": 0.0,
        "hld_rank": 256,
        "ip_value": 82.0,
        "ip_rank": 30,
        "h_value": 82.0,
        "h_rank": 13,
        "er_value": 37.0,
        "er_rank": 40,
        "hr_value": 8.0,
        "hr_rank": 79,
        "bb_value": 32.0,
        "bb_rank": 16,
        "k_value": 67.0,
        "k_rank": 59,
        "k_per_9_value": 7.3536587,
        "k_per_9_rank": 53,
        "whip_value": 1.3902,
        "whip_rank": 56.0,
        "war_value": 0.66,
        "war_rank": 1.0
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "run_factors": {
    "away_runs_vs_home_pitcher": 0.9778,
    "home_runs_vs_away_pitcher": 1.038,
    "home_pitcher_quality_edge": 0.7079
  },
  "score_before": {
    "away_runs": 3.4376,
    "home_runs": 2.9729
  },
  "score_after": {
    "away_runs": 3.3613,
    "home_runs": 3.0859,
    "home_win_probability": 0.4893
  },
  "reason": "Baseball Savant xwOBA, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted starter run prevention"
}

Team Form Snapshot

TeamLast-10 W-LWin %R/GRA/GRun DiffStreakOffenseDefense
Away BAL15-510.2271.103.50-162coldaverage
Home SEA20-430.3171.202.90-106coldstrong

Season Run Differential

TeamRecordWin %Run DiffRD/GameAvailable
Away BAL34-400.459-35-0.473True
Home SEA38-360.514220.297True
Signal--0.7700.851applied=True

Recent Head-to-Head

DateMatchupScoreWinnerMarginType
------

Player/Game Reconciliation

LayerABHRHRRBIBBSO
Game target BAL--3----
Game target SEA--4----
Player finalized BAL32930319
Player finalized SEA31920117
Player model fractional BAL31.747.384.221.164.183.498.10
Player model fractional SEA31.197.423.961.253.973.127.64
Simulation box BAL30320257
Simulation box SEA33932363

If player finalized rows and game target disagree, the report now exposes that gap instead of hiding it. Fractional model rows show the unrounded prop layer before box-score realization.

Pitching Snapshot

TeamRolePitcherPre IPPre ERPre SOPre HPre BBWeighted ERAWeighted WHIPBox Sync
Away BALStarterShane Baz632723.431.29True
Away BALMiddle RelieverRico Garcia100115.021.25True
Away BALMiddle RelieverRyan Helsley101034.641.30True
Away BALMiddle RelieverAndrew Kittredge000104.171.17True
Home SEAStarterBryan Woo5.2016224.811.15True
Home SEAMiddle RelieverAndrés Muñoz1.1000004.731.37True
Home SEAMiddle RelieverEduard Bazardo1.1010123.091.26True
Home SEAMiddle RelieverJosé A. Ferrer0.2001016.531.85True
Market-line comparison is not rendered because no local odds or sportsbook line CSV was found in data/. Add a real odds source before using market deltas as a model feature.

Player Boost/Deboost Impact Summary

SideTeamRolePosPlayerDominantChangedBoostedDeboostedBetterWorseLargest MetricLargest DeltaDirectionEffect
homeSEAbatter1BJosh Naylorbetter105564predicted_H2.0000boostbetter
awayBALbatterSSGunnar Hendersonworse92718predicted_AB-1.5700deboostworse
homeSEAbatterRFDominic Canzonebetter107382predicted_RBI1.4700boostbetter
homeSEAbatterLFMiles Mastrobuonibetter94554predicted_H1.3800boostbetter
homeSEAbatter3BJ.P. Crawfordworse112938predicted_BB1.3680boostbetter
homeSEAbatterDHCal Raleighworse101928predicted_SO-1.3260deboostbetter
awayBALbatterLFTaylor Wardworse93627predicted_AB-1.2100deboostworse
homeSEAbatterSSColt Emersonworse102837predicted_SO-1.0800deboostbetter
homeSEAbatterCFVictor Roblesworse112938predicted_AB1.0590boostbetter
awayBALbatter1BPete Alonsoworse102828predicted_AB-1.0200deboostworse
awayBALbatter3BBlaze Alexanderworse115647predicted_AB1.0000boostbetter
homeSEApitcherStarterBryan Wooneutral21111predicted_SO1.0000boostbetter
homeSEApitcherMiddle RelieverJosé A. Ferrerworse20202predicted_SO-1.0000deboostworse
awayBALbatterCSamuel Basalloworse81726predicted_SO-0.9330deboostbetter
awayBALbatterRFLeody Taverasworse1111029predicted_SO-0.8470deboostbetter
homeSEAbatter2BCole Youngworse104637predicted_AB-0.8200deboostworse
awayBALbatterCFColton Cowserworse93627predicted_BB0.7020boostbetter
homeSEAbatterCMitch Garverworse103737predicted_H-0.6400deboostworse
awayBALbatter2BJackson Hollidayworse80817predicted_H-0.6200deboostworse
awayBALbatterDHAdley Rutschmanworse72534predicted_SO-0.5960deboostbetter
awayBALpitcherMiddle RelieverAndrew Kittredgeworse10101predicted_IP-0.1000deboostworse
homeSEApitcherMiddle RelieverAndrés Muñozbetter11010predicted_IP0.1000boostbetter
homeSEApitcherMiddle RelieverEduard Bazardobetter11010predicted_IP0.1000boostbetter

This table ranks players whose JSON evolution changed materially. Boost/deboost is numeric movement; better/worse is role-aware.

Away Team: BAL

Away Pitcher Deep Analysis

FieldValue
PitcherShane Baz
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score-0.4469
ESPN Rank150
Movement AvailableTrue
Primary Pitch-
Movement Score0.0663
Avg Velo90.9127
Avg Spin2439.6068
HB Inches0
IVB Inches0
Release Extension0
Pre IP6
Pre ER3
Pre H7
Pre BB2
Pre SO2
Season ERA4.0610
Season WHIP1.3902
Role Avg IP5.8570
Recent Avg IP6.1330
Last Start IP5
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "BAL",
    "games": 84,
    "wins": 40,
    "losses": 44,
    "win_pct": 0.4762,
    "runs_scored": 382.0,
    "runs_allowed": 403.0,
    "run_differential": -21.0,
    "run_differential_per_game": -0.25,
    "avg_runs_scored": 4.5476,
    "avg_runs_allowed": 4.7976,
    "offense_index": 1.0085,
    "defense_index": 0.9399,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.4,
      "avg_runs_allowed": 4.8,
      "run_differential": -4.0
    },
    "available": true,
    "quality_score": -0.0857
  },
  "opponent": {
    "team": "SEA",
    "games": 81,
    "wins": 42,
    "losses": 39,
    "win_pct": 0.5185,
    "runs_scored": 358.0,
    "runs_allowed": 331.0,
    "run_differential": 27.0,
    "run_differential_per_game": 0.3333,
    "avg_runs_scored": 4.4198,
    "avg_runs_allowed": 4.0864,
    "offense_index": 0.9802,
    "defense_index": 1.1034,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.3,
      "avg_runs_allowed": 5.3,
      "run_differential": -10.0
    },
    "available": true,
    "quality_score": 0.0214
  },
  "edges": {
    "quality_edge": -0.1071,
    "offense_edge": 0.0085,
    "opponent_offense_edge": -0.0198,
    "defense_strength": -0.0601,
    "opponent_defense_weakness": -0.1034,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 0.9947,
    "run_prevention": 1.0082,
    "strikeout": 0.9984
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "669358",
    "profile": {
      "available": true,
      "pitcher_id": "669358",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 255.0,
        "k_percent": 18.9,
        "bb_percent": 9.0,
        "woba": 0.331,
        "xwoba": 0.338,
        "sweet_spot_percent": 37.2,
        "barrel_batted_rate": 8.7,
        "hard_hit_percent": 41.1,
        "avg_best_speed": 80.2175,
        "avg_hyper_speed": 94.691,
        "whiff_percent": 21.0,
        "swing_percent": 47.4
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.5599,
        "command_and_miss": -0.4564,
        "regression_edge": -0.2,
        "xwoba_edge": -0.6571,
        "barrel_edge": -0.3111,
        "hard_hit_edge": -0.4,
        "whiff_edge": -0.6714,
        "bb_edge": 0.05,
        "pitch_design_score": 0.0663
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "669358",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 103,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 103,
          "pitch_usage": 0.0,
          "release_speed": 90.9127128699343,
          "release_spin_rate": 2439.6068049668584,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 103,
            "pitch_usage": 0.0,
            "release_speed": 90.9127128699343,
            "release_spin_rate": 2439.6068049668584,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 90.9127,
          "release_spin_rate": 2439.6068,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": 0.0663,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": 0.4735,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": -0.4469,
      "sample_weight": 1.0,
      "run_prevention_factor": 1.038,
      "strikeout_factor": 0.9526,
      "walk_factor": 0.996,
      "homer_factor": 1.0606,
      "woba_minus_xwoba": -0.007,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "669358",
        "espn_id": 39639,
        "player_name": "Shane Baz",
        "team": "BAL",
        "role": "pitcher",
        "espn_rank": 150,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 150,
          "gp_value": 14.0,
          "gp_rank": 279,
          "gs_value": 14.0,
          "gs_rank": 37,
          "qs_value": 4.0,
          "qs_rank": 73,
          "era_value": 4.0609,
          "era_rank": 43.0,
          "w_value": 4.0,
          "w_rank": 65,
          "l_value": 6.0,
          "l_rank": 17,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 82.0,
          "ip_rank": 30,
          "h_value": 82.0,
          "h_rank": 13,
          "er_value": 37.0,
          "er_rank": 40,
          "hr_value": 8.0,
          "hr_rank": 79,
          "bb_value": 32.0,
          "bb_rank": 16,
          "k_value": 67.0,
          "k_rank": 59,
          "k_per_9_value": 7.3536587,
          "k_per_9_rank": 53,
          "whip_value": 1.3902,
          "whip_rank": 56.0,
          "war_value": 0.66,
          "war_rank": 1.0
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 2.0,
        "factor": 1.038,
        "adjusted": 2
      },
      "predicted_H": {
        "original": 5.0,
        "factor": 1.038,
        "adjusted": 5
      },
      "predicted_BB": {
        "original": 2.0,
        "factor": 0.996,
        "adjusted": 2
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0606,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 5.0,
        "factor": 0.9526,
        "adjusted": 5
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 60.0,
    "ER": 25,
    "H": 56,
    "BB": 24,
    "SO": 48,
    "HR": 6,
    "ERA": 3.75,
    "WHIP": 1.3333333333333333,
    "K9": 7.2,
    "HR9": 0.9,
    "games_pitched": 10,
    "quality_starts": 4,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-12T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "669358",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 103,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 103,
    "pitch_usage": 0.0,
    "release_speed": 90.9127128699343,
    "release_spin_rate": 2439.6068049668584,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 103,
      "pitch_usage": 0.0,
      "release_speed": 90.9127128699343,
      "release_spin_rate": 2439.6068049668584,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 90.9127,
    "release_spin_rate": 2439.6068,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": 0.0663,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": 0.4735,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "role": "pitcher",
  "player_id": "669358",
  "report_date": "20260618_B",
  "season_year": 2026,
  "rows_used": 14,
  "reference_playing_time": 6.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 30.2,
        "ER": 7.0,
        "R": 12.0,
        "H": 26.0,
        "BB": 10.0,
        "SO": 25.0,
        "HR": 2.0,
        "BF": 127.0,
        "Pitches": 471.0
      },
      "per_game": {
        "IP": 6.0,
        "ER": 1.4,
        "R": 2.4,
        "H": 5.2,
        "BB": 2.0,
        "SO": 5.0,
        "HR": 0.4,
        "BF": 25.4,
        "Pitches": 94.2
      },
      "rates": {
        "ERA": 2.0543,
        "WHIP": 1.1739,
        "ER_per_IP": 0.22826,
        "H_per_IP": 0.84783,
        "BB_per_IP": 0.32609,
        "SO_per_IP": 0.81522,
        "HR_per_IP": 0.06522
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 60.0,
        "ER": 25.0,
        "R": 31.0,
        "H": 56.0,
        "BB": 24.0,
        "SO": 48.0,
        "HR": 6.0,
        "BF": 258.0,
        "Pitches": 971.0
      },
      "per_game": {
        "IP": 6.0,
        "ER": 2.5,
        "R": 3.1,
        "H": 5.6,
        "BB": 2.4,
        "SO": 4.8,
        "HR": 0.6,
        "BF": 25.8,
        "Pitches": 97.1
      },
      "rates": {
        "ERA": 3.75,
        "WHIP": 1.3333,
        "ER_per_IP": 0.41667,
        "H_per_IP": 0.93333,
        "BB_per_IP": 0.4,
        "SO_per_IP": 0.8,
        "HR_per_IP": 0.1
      }
    },
    "season": {
      "games": 14,
      "totals": {
        "IP": 82.0,
        "ER": 37.0,
        "R": 43.0,
        "H": 82.0,
        "BB": 32.0,
        "SO": 67.0,
        "HR": 8.0,
        "BF": 355.0,
        "Pitches": 1345.0
      },
      "per_game": {
        "IP": 6.0,
        "ER": 2.6429,
        "R": 3.0714,
        "H": 5.8571,
        "BB": 2.2857,
        "SO": 4.7857,
        "HR": 0.5714,
        "BF": 25.3571,
        "Pitches": 96.0714
      },
      "rates": {
        "ERA": 4.061,
        "WHIP": 1.3902,
        "ER_per_IP": 0.45122,
        "H_per_IP": 1.0,
        "BB_per_IP": 0.39024,
        "SO_per_IP": 0.81707,
        "HR_per_IP": 0.09756
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 6.0,
    "predicted_ER": 2.289,
    "predicted_H": 5.553,
    "predicted_BB": 2.186,
    "predicted_SO": 5.063,
    "predicted_HR": 0.601,
    "predicted_ERA": 3.4332,
    "predicted_WHIP": 1.2899
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.4612,
  "form_weight": 0.5388,
  "form_reliability": 0.7368,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 6.0,
      "form": 6.0,
      "final": 6.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 3.0,
      "form": 2.289,
      "final": 2.6169,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 7.0,
      "form": 5.553,
      "final": 6.2204,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 2.0,
      "form": 2.186,
      "final": 2.1002,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 2.0,
      "form": 5.063,
      "final": 3.6503,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 2.0,
      "form": 0.601,
      "final": 1.2462,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.4332,
      "final": 3.4332,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2899,
      "final": 1.2899,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherRico Garcia
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.3354
ESPN Rank57
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H1
Pre BB1
Pre SO0
Season ERA1.8202
Season WHIP0.7416
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "BAL",
    "games": 84,
    "wins": 40,
    "losses": 44,
    "win_pct": 0.4762,
    "runs_scored": 382.0,
    "runs_allowed": 403.0,
    "run_differential": -21.0,
    "run_differential_per_game": -0.25,
    "avg_runs_scored": 4.5476,
    "avg_runs_allowed": 4.7976,
    "offense_index": 1.0085,
    "defense_index": 0.9399,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.4,
      "avg_runs_allowed": 4.8,
      "run_differential": -4.0
    },
    "available": true,
    "quality_score": -0.0857
  },
  "opponent": {
    "team": "SEA",
    "games": 81,
    "wins": 42,
    "losses": 39,
    "win_pct": 0.5185,
    "runs_scored": 358.0,
    "runs_allowed": 331.0,
    "run_differential": 27.0,
    "run_differential_per_game": 0.3333,
    "avg_runs_scored": 4.4198,
    "avg_runs_allowed": 4.0864,
    "offense_index": 0.9802,
    "defense_index": 1.1034,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.3,
      "avg_runs_allowed": 5.3,
      "run_differential": -10.0
    },
    "available": true,
    "quality_score": 0.0214
  },
  "edges": {
    "quality_edge": -0.1071,
    "offense_edge": 0.0085,
    "opponent_offense_edge": -0.0198,
    "defense_strength": -0.0601,
    "opponent_defense_weakness": -0.1034,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 0.9947,
    "run_prevention": 1.0082,
    "strikeout": 0.9984
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "670329",
    "profile": {
      "available": true,
      "pitcher_id": "670329",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 80.0,
        "k_percent": 29.4,
        "bb_percent": 9.2,
        "woba": 0.211,
        "xwoba": 0.27,
        "sweet_spot_percent": 25.4,
        "barrel_batted_rate": 9.0,
        "hard_hit_percent": 32.8,
        "avg_best_speed": 74.4502,
        "avg_hyper_speed": 93.0577,
        "whiff_percent": 36.5,
        "swing_percent": 49.1
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 1.1751,
        "command_and_miss": 0.9836,
        "regression_edge": -1.6857,
        "xwoba_edge": 1.2857,
        "barrel_edge": -0.3778,
        "hard_hit_edge": 0.7857,
        "whiff_edge": 1.5429,
        "bb_edge": 0.0,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "670329",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.3354,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9715,
      "strikeout_factor": 1.0455,
      "walk_factor": 1.0,
      "homer_factor": 0.9821,
      "woba_minus_xwoba": -0.059,
      "regression_flag": "negative_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "670329",
        "espn_id": 41382,
        "player_name": "Rico Garcia",
        "team": "BAL",
        "role": "pitcher",
        "espn_rank": 57,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 57,
          "gp_value": 32.0,
          "gp_rank": 31,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 1.8202,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 4.0,
          "sv_rank": 30,
          "hld_value": 9.0,
          "hld_rank": 31,
          "ip_value": 29.2,
          "ip_rank": 259,
          "h_value": 12.0,
          "h_rank": 460,
          "er_value": 6.0,
          "er_rank": 464,
          "hr_value": 4.0,
          "hr_rank": 199,
          "bb_value": 10.0,
          "bb_rank": 303,
          "k_value": 32.0,
          "k_rank": 222,
          "k_per_9_value": 9.707865,
          "k_per_9_rank": 23,
          "whip_value": 0.7415,
          "whip_rank": null,
          "war_value": 1.36,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9872,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9872,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9919,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0205,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.1,
    "ER": 4,
    "H": 8,
    "BB": 3,
    "SO": 7,
    "HR": 3,
    "ERA": 3.8571428571428577,
    "WHIP": 1.1785714285714288,
    "K9": 6.750000000000001,
    "HR9": 2.8928571428571432,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-14T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "670329",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.891,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5409,
    "prior_weight": 0.4591
  },
  "role": "pitcher",
  "player_id": "670329",
  "report_date": "20260618_B",
  "season_year": 2026,
  "rows_used": 32,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.1,
        "ER": 4.0,
        "R": 5.0,
        "H": 5.0,
        "BB": 1.0,
        "SO": 4.0,
        "HR": 3.0,
        "BF": 19.0,
        "Pitches": 77.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.8,
        "R": 1.0,
        "H": 1.0,
        "BB": 0.2,
        "SO": 0.8,
        "HR": 0.6,
        "BF": 3.8,
        "Pitches": 15.4
      },
      "rates": {
        "ERA": 8.3077,
        "WHIP": 1.3846,
        "ER_per_IP": 0.92308,
        "H_per_IP": 1.15385,
        "BB_per_IP": 0.23077,
        "SO_per_IP": 0.92308,
        "HR_per_IP": 0.69231
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.1,
        "ER": 4.0,
        "R": 5.0,
        "H": 8.0,
        "BB": 3.0,
        "SO": 7.0,
        "HR": 3.0,
        "BF": 38.0,
        "Pitches": 142.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4,
        "R": 0.5,
        "H": 0.8,
        "BB": 0.3,
        "SO": 0.7,
        "HR": 0.3,
        "BF": 3.8,
        "Pitches": 14.2
      },
      "rates": {
        "ERA": 3.8571,
        "WHIP": 1.1786,
        "ER_per_IP": 0.42857,
        "H_per_IP": 0.85714,
        "BB_per_IP": 0.32143,
        "SO_per_IP": 0.75,
        "HR_per_IP": 0.32143
      }
    },
    "season": {
      "games": 32,
      "totals": {
        "IP": 29.2,
        "ER": 6.0,
        "R": 7.0,
        "H": 12.0,
        "BB": 10.0,
        "SO": 32.0,
        "HR": 4.0,
        "BF": 109.0,
        "Pitches": 424.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.1875,
        "R": 0.2188,
        "H": 0.375,
        "BB": 0.3125,
        "SO": 1.0,
        "HR": 0.125,
        "BF": 3.4062,
        "Pitches": 13.25
      },
      "rates": {
        "ERA": 1.8202,
        "WHIP": 0.7416,
        "ER_per_IP": 0.20225,
        "H_per_IP": 0.40449,
        "BB_per_IP": 0.33708,
        "SO_per_IP": 1.07865,
        "HR_per_IP": 0.13483
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.558,
    "predicted_H": 0.934,
    "predicted_BB": 0.32,
    "predicted_SO": 0.914,
    "predicted_HR": 0.311,
    "predicted_ERA": 5.019,
    "predicted_WHIP": 1.2543
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.544,
  "form_weight": 0.456,
  "form_reliability": 0.5409,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.891,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5409,
    "prior_weight": 0.4591
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.558,
      "final": 0.2545,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.934,
      "final": 0.9699,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 0.32,
      "final": 0.6899,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 0.914,
      "final": 0.4168,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.311,
      "final": 0.1418,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 5.019,
      "final": 5.019,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2543,
      "final": 1.2543,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherRyan Helsley
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.1960
ESPN Rank310
Movement AvailableTrue
Primary Pitch-
Movement Score0.2024
Avg Velo93.3439
Avg Spin2356.4997
HB Inches0
IVB Inches0
Release Extension0
Pre IP1
Pre ER0
Pre H0
Pre BB3
Pre SO1
Season ERA3.8571
Season WHIP1.3714
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "BAL",
    "games": 84,
    "wins": 40,
    "losses": 44,
    "win_pct": 0.4762,
    "runs_scored": 382.0,
    "runs_allowed": 403.0,
    "run_differential": -21.0,
    "run_differential_per_game": -0.25,
    "avg_runs_scored": 4.5476,
    "avg_runs_allowed": 4.7976,
    "offense_index": 1.0085,
    "defense_index": 0.9399,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.4,
      "avg_runs_allowed": 4.8,
      "run_differential": -4.0
    },
    "available": true,
    "quality_score": -0.0857
  },
  "opponent": {
    "team": "SEA",
    "games": 81,
    "wins": 42,
    "losses": 39,
    "win_pct": 0.5185,
    "runs_scored": 358.0,
    "runs_allowed": 331.0,
    "run_differential": 27.0,
    "run_differential_per_game": 0.3333,
    "avg_runs_scored": 4.4198,
    "avg_runs_allowed": 4.0864,
    "offense_index": 0.9802,
    "defense_index": 1.1034,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.3,
      "avg_runs_allowed": 5.3,
      "run_differential": -10.0
    },
    "available": true,
    "quality_score": 0.0214
  },
  "edges": {
    "quality_edge": -0.1071,
    "offense_edge": 0.0085,
    "opponent_offense_edge": -0.0198,
    "defense_strength": -0.0601,
    "opponent_defense_weakness": -0.1034,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 0.9947,
    "run_prevention": 1.0082,
    "strikeout": 0.9984
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "664854",
    "profile": {
      "available": true,
      "pitcher_id": "664854",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 45.0,
        "k_percent": 33.3,
        "bb_percent": 13.7,
        "woba": 0.306,
        "xwoba": 0.287,
        "sweet_spot_percent": 18.5,
        "barrel_batted_rate": 7.4,
        "hard_hit_percent": 59.3,
        "avg_best_speed": 84.0002,
        "avg_hyper_speed": 96.0243,
        "whiff_percent": 40.2,
        "swing_percent": 45.8
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.0975,
        "command_and_miss": 1.1943,
        "regression_edge": 0.5429,
        "xwoba_edge": 0.8,
        "barrel_edge": -0.0222,
        "hard_hit_edge": -2.5,
        "whiff_edge": 2.0714,
        "bb_edge": -1.125,
        "pitch_design_score": 0.2024
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "664854",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 14,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 14,
          "pitch_usage": 0.0,
          "release_speed": 93.3439451240767,
          "release_spin_rate": 2356.4997381030275,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 14,
            "pitch_usage": 0.0,
            "release_speed": 93.3439451240767,
            "release_spin_rate": 2356.4997381030275,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 93.3439,
          "release_spin_rate": 2356.4997,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": 0.2024,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": 1.446,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.196,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9833,
      "strikeout_factor": 1.0651,
      "walk_factor": 1.0405,
      "homer_factor": 1.035,
      "woba_minus_xwoba": 0.019,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "664854",
        "espn_id": 39909,
        "player_name": "Ryan Helsley",
        "team": "BAL",
        "role": "pitcher",
        "espn_rank": 310,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 310,
          "gp_value": 13.0,
          "gp_rank": 329,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 3.8571,
          "era_rank": null,
          "w_value": 0.0,
          "w_rank": 404,
          "l_value": 2.0,
          "l_rank": 185,
          "sv_value": 7.0,
          "sv_rank": 20,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 11.2,
          "ip_rank": 465,
          "h_value": 9.0,
          "h_rank": 498,
          "er_value": 5.0,
          "er_rank": 496,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 7.0,
          "bb_rank": 394,
          "k_value": 17.0,
          "k_rank": 386,
          "k_per_9_value": 13.114286,
          "k_per_9_rank": 22,
          "whip_value": 1.3714,
          "whip_rank": null,
          "war_value": 0.12,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9925,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9925,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0182,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0157,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0293,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.1,
    "ER": 4,
    "H": 5,
    "BB": 6,
    "SO": 13,
    "HR": 2,
    "ERA": 3.8571428571428577,
    "WHIP": 1.1785714285714288,
    "K9": 12.535714285714286,
    "HR9": 1.9285714285714288,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-17T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "664854",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 14,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 14,
    "pitch_usage": 0.0,
    "release_speed": 93.3439451240767,
    "release_spin_rate": 2356.4997381030275,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 14,
      "pitch_usage": 0.0,
      "release_speed": 93.3439451240767,
      "release_spin_rate": 2356.4997381030275,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 93.3439,
    "release_spin_rate": 2356.4997,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": 0.2024,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": 1.446,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 2.317,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.3166,
    "prior_weight": 0.6834
  },
  "role": "pitcher",
  "player_id": "664854",
  "report_date": "20260618_B",
  "season_year": 2026,
  "rows_used": 13,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.1,
        "ER": 3.0,
        "R": 3.0,
        "H": 2.0,
        "BB": 3.0,
        "SO": 6.0,
        "HR": 2.0,
        "BF": 18.0,
        "Pitches": 70.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.6,
        "R": 0.6,
        "H": 0.4,
        "BB": 0.6,
        "SO": 1.2,
        "HR": 0.4,
        "BF": 3.6,
        "Pitches": 14.0
      },
      "rates": {
        "ERA": 6.2308,
        "WHIP": 1.1538,
        "ER_per_IP": 0.69231,
        "H_per_IP": 0.46154,
        "BB_per_IP": 0.69231,
        "SO_per_IP": 1.38462,
        "HR_per_IP": 0.46154
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.1,
        "ER": 4.0,
        "R": 4.0,
        "H": 5.0,
        "BB": 6.0,
        "SO": 13.0,
        "HR": 2.0,
        "BF": 38.0,
        "Pitches": 149.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4,
        "R": 0.4,
        "H": 0.5,
        "BB": 0.6,
        "SO": 1.3,
        "HR": 0.2,
        "BF": 3.8,
        "Pitches": 14.9
      },
      "rates": {
        "ERA": 3.8571,
        "WHIP": 1.1786,
        "ER_per_IP": 0.42857,
        "H_per_IP": 0.53571,
        "BB_per_IP": 0.64286,
        "SO_per_IP": 1.39286,
        "HR_per_IP": 0.21429
      }
    },
    "season": {
      "games": 13,
      "totals": {
        "IP": 11.2,
        "ER": 5.0,
        "R": 5.0,
        "H": 9.0,
        "BB": 7.0,
        "SO": 17.0,
        "HR": 2.0,
        "BF": 51.0,
        "Pitches": 201.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3846,
        "R": 0.3846,
        "H": 0.6923,
        "BB": 0.5385,
        "SO": 1.3077,
        "HR": 0.1538,
        "BF": 3.9231,
        "Pitches": 15.4615
      },
      "rates": {
        "ERA": 3.8571,
        "WHIP": 1.3714,
        "ER_per_IP": 0.42857,
        "H_per_IP": 0.77143,
        "BB_per_IP": 0.6,
        "SO_per_IP": 1.45714,
        "HR_per_IP": 0.17143
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.516,
    "predicted_H": 0.84,
    "predicted_BB": 0.456,
    "predicted_SO": 1.085,
    "predicted_HR": 0.2,
    "predicted_ERA": 4.6403,
    "predicted_WHIP": 1.2957
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.6387,
  "form_weight": 0.3613,
  "form_reliability": 0.3166,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 2.317,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.3166,
    "prior_weight": 0.6834
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.516,
      "final": 0.1864,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.84,
      "final": 0.3035,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 3.0,
      "form": 0.456,
      "final": 2.0809,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 1.085,
      "final": 1.0307,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.2,
      "final": 0.0723,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.6403,
      "final": 4.6403,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2957,
      "final": 1.2957,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherAndrew Kittredge
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.1842
ESPN Rank608
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP0
Pre ER0
Pre H1
Pre BB0
Pre SO0
Season ERA6.0612
Season WHIP1.4082
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "BAL",
    "games": 84,
    "wins": 40,
    "losses": 44,
    "win_pct": 0.4762,
    "runs_scored": 382.0,
    "runs_allowed": 403.0,
    "run_differential": -21.0,
    "run_differential_per_game": -0.25,
    "avg_runs_scored": 4.5476,
    "avg_runs_allowed": 4.7976,
    "offense_index": 1.0085,
    "defense_index": 0.9399,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.4,
      "avg_runs_allowed": 4.8,
      "run_differential": -4.0
    },
    "available": true,
    "quality_score": -0.0857
  },
  "opponent": {
    "team": "SEA",
    "games": 81,
    "wins": 42,
    "losses": 39,
    "win_pct": 0.5185,
    "runs_scored": 358.0,
    "runs_allowed": 331.0,
    "run_differential": 27.0,
    "run_differential_per_game": 0.3333,
    "avg_runs_scored": 4.4198,
    "avg_runs_allowed": 4.0864,
    "offense_index": 0.9802,
    "defense_index": 1.1034,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.3,
      "avg_runs_allowed": 5.3,
      "run_differential": -10.0
    },
    "available": true,
    "quality_score": 0.0214
  },
  "edges": {
    "quality_edge": -0.1071,
    "offense_edge": 0.0085,
    "opponent_offense_edge": -0.0198,
    "defense_strength": -0.0601,
    "opponent_defense_weakness": -0.1034,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 0.9947,
    "run_prevention": 1.0082,
    "strikeout": 0.9984
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "552640",
    "profile": {
      "available": true,
      "pitcher_id": "552640",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 51.0,
        "k_percent": 20.3,
        "bb_percent": 6.8,
        "woba": 0.329,
        "xwoba": 0.278,
        "sweet_spot_percent": 35.2,
        "barrel_batted_rate": 5.6,
        "hard_hit_percent": 33.3,
        "avg_best_speed": 74.9946,
        "avg_hyper_speed": 93.3968,
        "whiff_percent": 23.3,
        "swing_percent": 53.6
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.5362,
        "command_and_miss": -0.1414,
        "regression_edge": 1.4571,
        "xwoba_edge": 1.0571,
        "barrel_edge": 0.3778,
        "hard_hit_edge": 0.7143,
        "whiff_edge": -0.3429,
        "bb_edge": 0.6,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "552640",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.1842,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9843,
      "strikeout_factor": 0.9882,
      "walk_factor": 0.9784,
      "homer_factor": 0.9593,
      "woba_minus_xwoba": 0.051,
      "regression_flag": "positive_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "552640",
        "espn_id": 35872,
        "player_name": "Andrew Kittredge",
        "team": "BAL",
        "role": "pitcher",
        "espn_rank": 608,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 608,
          "gp_value": 19.0,
          "gp_rank": 195,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 6.0612,
          "era_rank": null,
          "w_value": 0.0,
          "w_rank": 404,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 1.0,
          "sv_rank": 86,
          "hld_value": 2.0,
          "hld_rank": 165,
          "ip_value": 16.1,
          "ip_rank": 425,
          "h_value": 19.0,
          "h_rank": 352,
          "er_value": 11.0,
          "er_rank": 294,
          "hr_value": 3.0,
          "hr_rank": 258,
          "bb_value": 4.0,
          "bb_rank": 502,
          "k_value": 15.0,
          "k_rank": 411,
          "k_per_9_value": 8.265306,
          "k_per_9_rank": 26,
          "whip_value": 1.4081,
          "whip_rank": null,
          "war_value": -0.35,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 1.0,
        "factor": 0.9929,
        "adjusted": 1
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9929,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9903,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9817,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 0.9947,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.0,
    "ER": 2,
    "H": 5,
    "BB": 1,
    "SO": 8,
    "HR": 1,
    "ERA": 2.0,
    "WHIP": 0.6666666666666666,
    "K9": 8.0,
    "HR9": 1.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "552640",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 3.244,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.3935,
    "prior_weight": 0.6065
  },
  "role": "pitcher",
  "player_id": "552640",
  "report_date": "20260618_B",
  "season_year": 2026,
  "rows_used": 19,
  "reference_playing_time": 0.1,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.2,
        "ER": 2.0,
        "R": 2.0,
        "H": 4.0,
        "BB": 0.0,
        "SO": 2.0,
        "HR": 1.0,
        "BF": 18.0,
        "Pitches": 45.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4,
        "R": 0.4,
        "H": 0.8,
        "BB": 0.0,
        "SO": 0.4,
        "HR": 0.2,
        "BF": 3.6,
        "Pitches": 9.0
      },
      "rates": {
        "ERA": 3.8571,
        "WHIP": 0.8571,
        "ER_per_IP": 0.42857,
        "H_per_IP": 0.85714,
        "BB_per_IP": 0.0,
        "SO_per_IP": 0.42857,
        "HR_per_IP": 0.21429
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.0,
        "ER": 2.0,
        "R": 2.0,
        "H": 5.0,
        "BB": 1.0,
        "SO": 8.0,
        "HR": 1.0,
        "BF": 33.0,
        "Pitches": 101.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.5,
        "BB": 0.1,
        "SO": 0.8,
        "HR": 0.1,
        "BF": 3.3,
        "Pitches": 10.1
      },
      "rates": {
        "ERA": 2.0,
        "WHIP": 0.6667,
        "ER_per_IP": 0.22222,
        "H_per_IP": 0.55556,
        "BB_per_IP": 0.11111,
        "SO_per_IP": 0.88889,
        "HR_per_IP": 0.11111
      }
    },
    "season": {
      "games": 19,
      "totals": {
        "IP": 16.1,
        "ER": 11.0,
        "R": 13.0,
        "H": 19.0,
        "BB": 4.0,
        "SO": 15.0,
        "HR": 3.0,
        "BF": 73.0,
        "Pitches": 248.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.5789,
        "R": 0.6842,
        "H": 1.0,
        "BB": 0.2105,
        "SO": 0.7895,
        "HR": 0.1579,
        "BF": 3.8421,
        "Pitches": 13.0526
      },
      "rates": {
        "ERA": 6.0612,
        "WHIP": 1.4082,
        "ER_per_IP": 0.67347,
        "H_per_IP": 1.16327,
        "BB_per_IP": 0.2449,
        "SO_per_IP": 0.91837,
        "HR_per_IP": 0.18367
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 0.2,
    "predicted_ER": 0.276,
    "predicted_H": 0.542,
    "predicted_BB": 0.152,
    "predicted_SO": 0.5,
    "predicted_HR": 0.093,
    "predicted_ERA": 4.1697,
    "predicted_WHIP": 1.1654
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.6062,
  "form_weight": 0.3938,
  "form_reliability": 0.3935,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 3.244,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.3935,
    "prior_weight": 0.6065
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 0.1,
      "form": 0.2,
      "final": 0.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.276,
      "final": 0.1087,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.542,
      "final": 0.8197,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.152,
      "final": 0.0599,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 0.5,
      "final": 0.1969,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.093,
      "final": 0.0366,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.1697,
      "final": 4.1697,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1654,
      "final": 1.1654,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Adley Rutschman (668939) · BATTER · DH · Team BAL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 173
All-history rows before 20260618: 173
System season_avg: 0.2620
Data season_avg (2026 season-to-date): 0.2660
Diff (system - data): -0.0040
System opponent_avg: 0.5050

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2880.0000.000Hitting_2B0.3240.000-0.3240.000
predicted_3B0.0190.0000.000Hitting_3B0.0060.000-0.0060.000
predicted_AB4.0904.0004.000Hitting_AB3.8904.0000.1100.000
predicted_AVG0.2380.2500.250Hitting_AVG0.2660.000-0.0160.250
predicted_BB0.4040.0000.000Hitting_BB0.4050.000-0.4050.000
predicted_CS-0.0000.000BaseRunning_CS0.0060.000-0.0060.000
predicted_H0.9801.0001.000Hitting_H1.0350.000-0.0351.000
predicted_HR0.1300.0000.000Hitting_HR0.1850.000-0.1850.000
predicted_OBP0.3130.2500.250Hitting_OBP0.3370.000-0.0870.250
predicted_R0.5001.0000.000Hitting_R0.5320.0000.4681.000
predicted_RBI0.7501.0001.000Hitting_RBI0.7110.0000.2891.000
predicted_SLG0.4190.2500.250Hitting_SLG0.4950.000-0.2450.250
predicted_SO0.5960.0001.000Hitting_SO0.6710.000-0.6710.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics7
Boosted Metrics2
Deboosted Metrics5
Better Metrics3
Worse Metrics4
Biggest Boostpredicted_R: 0.5000 -> 1.0000 (boost 0.5000, better)
Biggest Deboostpredicted_SO: 0.5960 -> 0.0000 (deboost -0.5960, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend10101-predicted_AB: 4.0900 -> 3.9402 (deboost -0.1498, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_SLG: 0.4217 -> 0.4147 (deboost -0.0070, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling74334predicted_SO: 0.6043 -> 1.0000 (boost 0.3957, worse)predicted_BB: 0.3905 -> 0.0000 (deboost -0.3905, worse)AB rounded to 4 (raw=4.09), rates preserved: AVG=0.232 HR/AB=0.030
5bvp_blend00000--Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.667)
6consistency_constraints10101-predicted_R: 0.4671 -> 0.0000 (deboost -0.4671, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context31212predicted_AVG: 0.2404 -> 0.2500 (boost 0.0096, better)predicted_SLG: 0.4147 -> 0.2500 (deboost -0.1647, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference21120predicted_R: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
9current_json_final32121predicted_SLG: 0.2500 -> 0.4147 (boost 0.1647, better)predicted_AVG: 0.2500 -> 0.2404 (deboost -0.0096, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "668939",
  "player_name": "Adley Rutschman",
  "position": "DH",
  "team": "BAL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.288,
        "predicted_3B": 0.019,
        "predicted_AB": 4.09,
        "predicted_AVG": 0.238,
        "predicted_BB": 0.404,
        "predicted_H": 0.98,
        "predicted_HR": 0.13,
        "predicted_OBP": 0.313,
        "predicted_R": 0.5,
        "predicted_RBI": 0.75,
        "predicted_SLG": 0.419,
        "predicted_SO": 0.596
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2772,
        "predicted_3B": 0.0231,
        "predicted_AB": 3.9402,
        "predicted_AVG": 0.2425,
        "predicted_BB": 0.3916,
        "predicted_H": 0.9584,
        "predicted_HBP": 0.014,
        "predicted_HR": 0.1229,
        "predicted_OBP": 0.3135,
        "predicted_R": 0.4764,
        "predicted_RBI": 0.7716,
        "predicted_SLG": 0.4217,
        "predicted_SO": 0.6026
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.288,
          "after": 0.2772,
          "delta": -0.0108,
          "percent_delta": -0.0375,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.019,
          "after": 0.0231,
          "delta": 0.0041,
          "percent_delta": 0.2158,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.09,
          "after": 3.9402,
          "delta": -0.1498,
          "percent_delta": -0.0366,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.238,
          "after": 0.2425,
          "delta": 0.0045,
          "percent_delta": 0.0189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.404,
          "after": 0.3916,
          "delta": -0.0124,
          "percent_delta": -0.0307,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.98,
          "after": 0.9584,
          "delta": -0.0216,
          "percent_delta": -0.022,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.13,
          "after": 0.1229,
          "delta": -0.0071,
          "percent_delta": -0.0546,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.313,
          "after": 0.3135,
          "delta": 0.0005,
          "percent_delta": 0.0016,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5,
          "after": 0.4764,
          "delta": -0.0236,
          "percent_delta": -0.0472,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.75,
          "after": 0.7716,
          "delta": 0.0216,
          "percent_delta": 0.0288,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.419,
          "after": 0.4217,
          "delta": 0.0027,
          "percent_delta": 0.0064,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.596,
          "after": 0.6026,
          "delta": 0.0066,
          "percent_delta": 0.0111,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.09,
          "after": 3.9402,
          "delta": -0.1498,
          "percent_delta": -0.0366,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 52
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2772,
        "predicted_3B": 0.0231,
        "predicted_AB": 3.9402,
        "predicted_AVG": 0.2404,
        "predicted_BB": 0.3905,
        "predicted_H": 0.9472,
        "predicted_HBP": 0.014,
        "predicted_HR": 0.1211,
        "predicted_OBP": 0.3089,
        "predicted_R": 0.4671,
        "predicted_RBI": 0.7565,
        "predicted_SLG": 0.4147,
        "predicted_SO": 0.6043
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2772,
          "after": 0.2772,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0231,
          "after": 0.0231,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9402,
          "after": 3.9402,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2425,
          "after": 0.2404,
          "delta": -0.0021,
          "percent_delta": -0.0087,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3916,
          "after": 0.3905,
          "delta": -0.0011,
          "percent_delta": -0.0028,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9584,
          "after": 0.9472,
          "delta": -0.0112,
          "percent_delta": -0.0117,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.014,
          "after": 0.014,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1229,
          "after": 0.1211,
          "delta": -0.0018,
          "percent_delta": -0.0146,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3135,
          "after": 0.3089,
          "delta": -0.0046,
          "percent_delta": -0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4764,
          "after": 0.4671,
          "delta": -0.0093,
          "percent_delta": -0.0195,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.7716,
          "after": 0.7565,
          "delta": -0.0151,
          "percent_delta": -0.0196,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4217,
          "after": 0.4147,
          "delta": -0.007,
          "percent_delta": -0.0166,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6026,
          "after": 0.6043,
          "delta": 0.0017,
          "percent_delta": 0.0028,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4217,
          "after": 0.4147,
          "delta": -0.007,
          "percent_delta": -0.0166,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.09), rates preserved: AVG=0.232 HR/AB=0.030",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2772,
          "after": 0.0,
          "delta": -0.2772,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0231,
          "after": 0.0,
          "delta": -0.0231,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9402,
          "after": 4.0,
          "delta": 0.0598,
          "percent_delta": 0.0152,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3905,
          "after": 0.0,
          "delta": -0.3905,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9472,
          "after": 1.0,
          "delta": 0.0528,
          "percent_delta": 0.0557,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.014,
          "after": 0.0,
          "delta": -0.014,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1211,
          "after": 0.0,
          "delta": -0.1211,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.7565,
          "after": 1.0,
          "delta": 0.2435,
          "percent_delta": 0.3219,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6043,
          "after": 1.0,
          "delta": 0.3957,
          "percent_delta": 0.6548,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 4,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.6043,
          "after": 1.0,
          "delta": 0.3957,
          "percent_delta": 0.6548,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3905,
          "after": 0.0,
          "delta": -0.3905,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.667)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9333,
        "bvp": 0.0667
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4671,
          "after": 0.0,
          "delta": -0.4671,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4671,
          "after": 0.0,
          "delta": -0.4671,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2404,
          "after": 0.25,
          "delta": 0.0096,
          "percent_delta": 0.0399,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3089,
          "after": 0.25,
          "delta": -0.0589,
          "percent_delta": -0.1907,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4147,
          "after": 0.25,
          "delta": -0.1647,
          "percent_delta": -0.3972,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2404,
          "after": 0.25,
          "delta": 0.0096,
          "percent_delta": 0.0399,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4147,
          "after": 0.25,
          "delta": -0.1647,
          "percent_delta": -0.3972,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2404,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3089,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4147,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2404,
          "delta": -0.0096,
          "percent_delta": -0.0384,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3089,
          "delta": 0.0589,
          "percent_delta": 0.2355,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4147,
          "delta": 0.1647,
          "percent_delta": 0.6587,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4147,
          "delta": 0.1647,
          "percent_delta": 0.6587,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2404,
          "delta": -0.0096,
          "percent_delta": -0.0384,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.288,
        "after": 0.0,
        "delta": -0.288,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.019,
        "after": 0.0,
        "delta": -0.019,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.09,
        "after": 4.0,
        "delta": -0.09,
        "percent_delta": -0.022,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.238,
        "after": 0.2404,
        "delta": 0.0024,
        "percent_delta": 0.0101,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.404,
        "after": 0.0,
        "delta": -0.404,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.98,
        "after": 1.0,
        "delta": 0.02,
        "percent_delta": 0.0204,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.13,
        "after": 0.0,
        "delta": -0.13,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.313,
        "after": 0.3089,
        "delta": -0.0041,
        "percent_delta": -0.0131,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.5,
        "after": 1.0,
        "delta": 0.5,
        "percent_delta": 1.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.75,
        "after": 1.0,
        "delta": 0.25,
        "percent_delta": 0.3333,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.419,
        "after": 0.4147,
        "delta": -0.0043,
        "percent_delta": -0.0103,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.596,
        "after": 0.0,
        "delta": -0.596,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 7,
      "boosted_metrics": 2,
      "deboosted_metrics": 5,
      "better_metrics": 3,
      "worse_metrics": 4,
      "biggest_boost": {
        "metric": "predicted_R",
        "before": 0.5,
        "after": 1.0,
        "delta": 0.5,
        "percent_delta": 1.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.596,
        "after": 0.0,
        "delta": -0.596,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.288-
predicted_3B0.019-
predicted_AB4.090-
predicted_AVG0.238-
predicted_BB0.404-
predicted_H0.980-
predicted_HR0.130-
predicted_OBP0.313-
predicted_R0.500-
predicted_RBI0.750-
predicted_SLG0.419-
predicted_SO0.596-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.277-0.011
predicted_3B0.0230.004
predicted_AB3.940-0.150
predicted_AVG0.2420.005
predicted_BB0.392-0.012
predicted_H0.958-0.022
predicted_HBP0.014-
predicted_HR0.123-0.007
predicted_OBP0.3140.001
predicted_R0.476-0.024
predicted_RBI0.7720.022
predicted_SLG0.4220.003
predicted_SO0.6030.007
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2770.000
predicted_3B0.0230.000
predicted_AB3.9400.000
predicted_AVG0.240-0.002
predicted_BB0.391-0.001
predicted_H0.947-0.011
predicted_HBP0.0140.000
predicted_HR0.121-0.002
predicted_OBP0.309-0.005
predicted_R0.467-0.009
predicted_RBI0.756-0.015
predicted_SLG0.415-0.007
predicted_SO0.6040.002
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.09), rates preserved: AVG=0.232 HR/AB=0.030

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.667)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI1.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.277
predicted_3B0.000-0.023
predicted_AB4.0000.060
predicted_AVG0.2500.010
predicted_BB0.000-0.391
predicted_H1.0000.053
predicted_HR0.000-0.121
predicted_OBP0.250-0.059
predicted_R0.000-0.467
predicted_RBI1.0000.244
predicted_SLG0.250-0.165
predicted_SO1.0000.396
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI1.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 52
Reference playing time: 4.090
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0003.0001.0000.0000.0004.0001.0002.0003.0000.17650.25000.23530.17650.00000.23530.11770.1765
last_100.2010-39.00011.0003.0001.0001.00011.0005.0003.0005.0000.28210.32560.48720.28210.02560.28210.07690.1282
season0.6052-195.00051.00015.0001.0008.00040.00026.00021.00031.0000.26150.33180.47180.26150.04100.20510.10770.1590
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2620
predicted_3B0.0290
predicted_AB3.7290
predicted_AVG0.2488
predicted_BB0.3740
predicted_H0.9280
predicted_HBP0.0140
predicted_HR0.1130
predicted_OBP0.3141
predicted_R0.4430
predicted_RBI0.8020
predicted_SLG0.4254
predicted_SO0.6120
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.28800.26200.2772model_form_blend
predicted_3B0.01900.02900.0231model_form_blend
predicted_AB4.09003.72903.9402model_form_blend
predicted_AVG0.23800.24880.2425model_form_blend
predicted_BB0.40400.37400.3916model_form_blend
predicted_H0.98000.92800.9584model_form_blend
predicted_HBP-0.01400.0140form_only
predicted_HR0.13000.11300.1229model_form_blend
predicted_OBP0.31300.31410.3135model_form_blend
predicted_R0.50000.44300.4764model_form_blend
predicted_RBI0.75000.80200.7716model_form_blend
predicted_SLG0.41900.42540.4217model_form_blend
predicted_SO0.59600.61200.6026model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date173
Season rows before report date173
Report year2026
Profile rows used52
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R1
RBI1
BB0
SO0
SF0
HBP0
season_avg0.262

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E1
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedC
gameID20260617_BAL@SEA
game_typefull
mlbID668939
playerID668939
playerNameAdley Rutschman
posC
startedTrue
startingPositionC
teamBAL
teamID3
game_date2026-06-17
sl_k_percent13.8
sl_bb_percent10.3
sl_woba0.348
sl_xwoba0.36
sl_xba0.28
sl_xslg0.462
sl_sweet_spot_percent37.9
sl_barrel_batted_rate8.9
sl_hard_hit_percent45.0
sl_exit_velocity_avg89.5
sl_launch_angle_avg14.5
sl_whiff_percent15.3
sl_swing_percent41.7
Pete Alonso (624413) · BATTER · 1B · Team BAL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 261
All-history rows before 20260618: 261
System season_avg: 0.2560
Data season_avg (2026 season-to-date): 0.2455
Diff (system - data): 0.0105
System opponent_avg: 0.2020

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1780.0000.000Hitting_2B0.2180.000-0.2180.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.0203.0004.000Hitting_AB3.8244.000-0.824-1.000
predicted_AVG0.2530.0000.250Hitting_AVG0.2450.250-0.245-0.250
predicted_BB0.4521.0000.000Hitting_BB0.4670.0000.5331.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H1.0200.0001.000Hitting_H0.9391.000-0.939-1.000
predicted_HR0.2100.0000.000Hitting_HR0.1760.000-0.1760.000
predicted_OBP0.3680.2500.250Hitting_OBP0.3290.250-0.0790.000
predicted_R0.5890.0001.000Hitting_R0.5591.000-0.559-1.000
predicted_RBI0.7000.0001.000Hitting_RBI0.6210.000-0.6210.000
predicted_SLG0.4830.0000.250Hitting_SLG0.4410.250-0.441-0.250
predicted_SO1.0141.0001.000Hitting_SO1.0272.000-0.027-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics2
Deboosted Metrics8
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_BB: 0.4520 -> 1.0000 (boost 0.5480, better)
Biggest Deboostpredicted_AB: 4.0200 -> 3.0000 (deboost -1.0200, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend54141predicted_BB: 0.4520 -> 0.5110 (boost 0.0590, better)predicted_AB: 4.0200 -> 3.8425 (deboost -0.1775, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3781 -> 0.3502 (deboost -0.0279, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling63333predicted_BB: 0.5095 -> 1.0000 (boost 0.4905, better)predicted_HR: 0.2132 -> 0.0000 (deboost -0.2132, worse)AB rounded to 4 (raw=4.02), rates preserved: AVG=0.252 HR/AB=0.053
5bvp_blend10101-predicted_BB: 1.0000 -> 0.0000 (deboost -1.0000, worse)Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.167)
6consistency_constraints11010predicted_R: 0.5862 -> 1.0000 (boost 0.4138, better)-Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context30303-predicted_SLG: 0.4762 -> 0.2500 (deboost -0.2262, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference51414predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final33030predicted_SLG: 0.2500 -> 0.4762 (boost 0.2262, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "624413",
  "player_name": "Pete Alonso",
  "position": "1B",
  "team": "BAL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.178,
        "predicted_3B": 0.0,
        "predicted_AB": 4.02,
        "predicted_AVG": 0.253,
        "predicted_BB": 0.452,
        "predicted_H": 1.02,
        "predicted_HR": 0.21,
        "predicted_OBP": 0.368,
        "predicted_R": 0.589,
        "predicted_RBI": 0.7,
        "predicted_SLG": 0.483,
        "predicted_SO": 1.014
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.175,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.8425,
        "predicted_AVG": 0.2676,
        "predicted_BB": 0.511,
        "predicted_H": 1.0264,
        "predicted_HBP": 0.106,
        "predicted_HR": 0.2164,
        "predicted_OBP": 0.3781,
        "predicted_R": 0.5979,
        "predicted_RBI": 0.7038,
        "predicted_SLG": 0.4999,
        "predicted_SO": 1.0093
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.178,
          "after": 0.175,
          "delta": -0.003,
          "percent_delta": -0.0169,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.02,
          "after": 3.8425,
          "delta": -0.1775,
          "percent_delta": -0.0442,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.253,
          "after": 0.2676,
          "delta": 0.0146,
          "percent_delta": 0.0577,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.452,
          "after": 0.511,
          "delta": 0.059,
          "percent_delta": 0.1305,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.02,
          "after": 1.0264,
          "delta": 0.0064,
          "percent_delta": 0.0063,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.21,
          "after": 0.2164,
          "delta": 0.0064,
          "percent_delta": 0.0305,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.368,
          "after": 0.3781,
          "delta": 0.0101,
          "percent_delta": 0.0274,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.589,
          "after": 0.5979,
          "delta": 0.0089,
          "percent_delta": 0.0151,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.7,
          "after": 0.7038,
          "delta": 0.0038,
          "percent_delta": 0.0054,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.483,
          "after": 0.4999,
          "delta": 0.0169,
          "percent_delta": 0.035,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.014,
          "after": 1.0093,
          "delta": -0.0047,
          "percent_delta": -0.0046,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 4,
        "deboosted_metrics": 1,
        "better_metrics": 4,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.452,
          "after": 0.511,
          "delta": 0.059,
          "percent_delta": 0.1305,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.02,
          "after": 3.8425,
          "delta": -0.1775,
          "percent_delta": -0.0442,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 73
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.175,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.8425,
        "predicted_AVG": 0.264,
        "predicted_BB": 0.5095,
        "predicted_H": 1.0144,
        "predicted_HBP": 0.106,
        "predicted_HR": 0.2132,
        "predicted_OBP": 0.3502,
        "predicted_R": 0.5862,
        "predicted_RBI": 0.69,
        "predicted_SLG": 0.4762,
        "predicted_SO": 1.0122
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.175,
          "after": 0.175,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8425,
          "after": 3.8425,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2676,
          "after": 0.264,
          "delta": -0.0036,
          "percent_delta": -0.0135,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.511,
          "after": 0.5095,
          "delta": -0.0015,
          "percent_delta": -0.0029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0264,
          "after": 1.0144,
          "delta": -0.012,
          "percent_delta": -0.0117,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.106,
          "after": 0.106,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2164,
          "after": 0.2132,
          "delta": -0.0032,
          "percent_delta": -0.0148,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3781,
          "after": 0.3502,
          "delta": -0.0279,
          "percent_delta": -0.0738,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5979,
          "after": 0.5862,
          "delta": -0.0117,
          "percent_delta": -0.0196,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.7038,
          "after": 0.69,
          "delta": -0.0138,
          "percent_delta": -0.0196,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4999,
          "after": 0.4762,
          "delta": -0.0237,
          "percent_delta": -0.0474,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0093,
          "after": 1.0122,
          "delta": 0.0029,
          "percent_delta": 0.0029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3781,
          "after": 0.3502,
          "delta": -0.0279,
          "percent_delta": -0.0738,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.02), rates preserved: AVG=0.252 HR/AB=0.053",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.175,
          "after": 0.0,
          "delta": -0.175,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8425,
          "after": 4.0,
          "delta": 0.1575,
          "percent_delta": 0.041,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.5095,
          "after": 1.0,
          "delta": 0.4905,
          "percent_delta": 0.9627,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0144,
          "after": 1.0,
          "delta": -0.0144,
          "percent_delta": -0.0142,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.106,
          "after": 0.0,
          "delta": -0.106,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.2132,
          "after": 0.0,
          "delta": -0.2132,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.69,
          "after": 1.0,
          "delta": 0.31,
          "percent_delta": 0.4493,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0122,
          "after": 1.0,
          "delta": -0.0122,
          "percent_delta": -0.0121,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 3,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.5095,
          "after": 1.0,
          "delta": 0.4905,
          "percent_delta": 0.9627,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_HR",
          "before": 0.2132,
          "after": 0.0,
          "delta": -0.2132,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.167)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "model_expectation": 0.9333,
        "bvp": 0.0667
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5862,
          "after": 1.0,
          "delta": 0.4138,
          "percent_delta": 0.7059,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5862,
          "after": 1.0,
          "delta": 0.4138,
          "percent_delta": 0.7059,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.264,
          "after": 0.25,
          "delta": -0.014,
          "percent_delta": -0.053,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3502,
          "after": 0.25,
          "delta": -0.1002,
          "percent_delta": -0.2861,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4762,
          "after": 0.25,
          "delta": -0.2262,
          "percent_delta": -0.475,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4762,
          "after": 0.25,
          "delta": -0.2262,
          "percent_delta": -0.475,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 1,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.264,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_FB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3502,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4762,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.264,
          "delta": 0.014,
          "percent_delta": 0.056,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3502,
          "delta": 0.1002,
          "percent_delta": 0.4006,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4762,
          "delta": 0.2262,
          "percent_delta": 0.9049,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4762,
          "delta": 0.2262,
          "percent_delta": 0.9049,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.178,
        "after": 0.0,
        "delta": -0.178,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.02,
        "after": 3.0,
        "delta": -1.02,
        "percent_delta": -0.2537,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.253,
        "after": 0.264,
        "delta": 0.011,
        "percent_delta": 0.0435,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.452,
        "after": 1.0,
        "delta": 0.548,
        "percent_delta": 1.2124,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.02,
        "after": 0.0,
        "delta": -1.02,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.21,
        "after": 0.0,
        "delta": -0.21,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.368,
        "after": 0.3502,
        "delta": -0.0178,
        "percent_delta": -0.0484,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.589,
        "after": 0.0,
        "delta": -0.589,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.7,
        "after": 0.0,
        "delta": -0.7,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.483,
        "after": 0.4762,
        "delta": -0.0068,
        "percent_delta": -0.0141,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.014,
        "after": 1.0,
        "delta": -0.014,
        "percent_delta": -0.0138,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 2,
      "deboosted_metrics": 8,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.452,
        "after": 1.0,
        "delta": 0.548,
        "percent_delta": 1.2124,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 4.02,
        "after": 3.0,
        "delta": -1.02,
        "percent_delta": -0.2537,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.178-
predicted_3B0.000-
predicted_AB4.020-
predicted_AVG0.253-
predicted_BB0.452-
predicted_H1.020-
predicted_HR0.210-
predicted_OBP0.368-
predicted_R0.589-
predicted_RBI0.700-
predicted_SLG0.483-
predicted_SO1.014-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.175-0.003
predicted_3B0.0000.000
predicted_AB3.842-0.177
predicted_AVG0.2680.015
predicted_BB0.5110.059
predicted_H1.0260.006
predicted_HBP0.106-
predicted_HR0.2160.006
predicted_OBP0.3780.010
predicted_R0.5980.009
predicted_RBI0.7040.004
predicted_SLG0.5000.017
predicted_SO1.009-0.005
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1750.000
predicted_3B0.0000.000
predicted_AB3.8420.000
predicted_AVG0.264-0.004
predicted_BB0.509-0.002
predicted_H1.014-0.012
predicted_HBP0.1060.000
predicted_HR0.213-0.003
predicted_OBP0.350-0.028
predicted_R0.586-0.012
predicted_RBI0.690-0.014
predicted_SLG0.476-0.024
predicted_SO1.0120.003
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.02), rates preserved: AVG=0.252 HR/AB=0.053

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.167)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.000-1.000
H1.0000.000
HR0.0000.000
RBI1.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.175
predicted_3B0.000-0.000
predicted_AB4.0000.158
predicted_AVG0.250-0.014
predicted_BB0.000-0.509
predicted_H1.000-0.014
predicted_HR0.000-0.213
predicted_OBP0.250-0.100
predicted_R1.0000.414
predicted_RBI1.0000.310
predicted_SLG0.250-0.226
predicted_SO1.000-0.012
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 73
Reference playing time: 4.020
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-15.0006.0001.0000.0001.0004.0003.0005.0005.0000.40000.57140.66670.40000.06670.26670.33330.3333
last_100.2010-35.00010.0001.0000.0003.0008.0007.0006.00010.0000.28570.40910.57140.28570.08570.22860.17140.2857
season0.6073-277.00071.00013.0000.00016.00048.00043.00033.00074.0000.25630.33860.47650.25630.05780.17330.11910.2671
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1710
predicted_3B0.0010
predicted_AB3.6020
predicted_AVG0.2874
predicted_BB0.5910
predicted_H1.0350
predicted_HBP0.1060
predicted_HR0.2250
predicted_OBP0.3918
predicted_R0.6100
predicted_RBI0.7090
predicted_SLG0.5228
predicted_SO1.0030
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.17800.17100.1750model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.02003.60203.8425model_form_blend
predicted_AVG0.25300.28740.2676model_form_blend
predicted_BB0.45200.59100.5110model_form_blend
predicted_H1.02001.03501.0264model_form_blend
predicted_HBP-0.10600.1060form_only
predicted_HR0.21000.22500.2164model_form_blend
predicted_OBP0.36800.39180.3781model_form_blend
predicted_R0.58900.61000.5979model_form_blend
predicted_RBI0.70000.70900.7038model_form_blend
predicted_SLG0.48300.52280.4999model_form_blend
predicted_SO1.01401.00301.0093model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date261
Season rows before report date261
Report year2026
Profile rows used73
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO1
SF0
HBP0
season_avg0.256

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB1
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B
gameID20260617_BAL@SEA
game_typefull
mlbID624413
playerID624413
playerNamePete Alonso
pos1B
startedTrue
startingPosition1B
teamBAL
teamID3
game_date2026-06-17
sl_k_percent22.8
sl_bb_percent10.8
sl_woba0.348
sl_xwoba0.374
sl_xba0.273
sl_xslg0.521
sl_sweet_spot_percent32.1
sl_barrel_batted_rate12.3
sl_hard_hit_percent55.7
sl_exit_velocity_avg94.9
sl_launch_angle_avg14.1
sl_whiff_percent26.6
sl_swing_percent44.5
Gunnar Henderson (683002) · BATTER · SS · Team BAL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 271
All-history rows before 20260618: 271
System season_avg: 0.2240
Data season_avg (2026 season-to-date): 0.2129
Diff (system - data): 0.0111
System opponent_avg: 0.2120

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1810.0000.000Hitting_2B0.2070.000-0.2070.000
predicted_3B0.0140.0000.000Hitting_3B0.0180.000-0.0180.000
predicted_AB4.5703.0005.000Hitting_AB4.2474.000-1.247-1.000
predicted_AVG0.2290.0000.200Hitting_AVG0.2130.250-0.213-0.250
predicted_BB0.3471.0000.000Hitting_BB0.2990.0000.7011.000
predicted_CS-0.0000.000BaseRunning_CS0.0630.000-0.0630.000
predicted_H1.0500.0001.000Hitting_H0.9041.000-0.904-1.000
predicted_HR0.2100.0000.000Hitting_HR0.2071.000-0.207-1.000
predicted_OBP0.3260.2500.200Hitting_OBP0.2710.250-0.0210.000
predicted_R0.5280.0001.000Hitting_R0.5201.000-0.520-1.000
predicted_RBI0.5700.0001.000Hitting_RBI0.5202.000-0.520-2.000
predicted_SLG0.4280.0000.200Hitting_SLG0.4161.000-0.416-1.000
predicted_SO1.0972.0001.000Hitting_SO1.2621.0000.7381.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics2
Deboosted Metrics7
Better Metrics1
Worse Metrics8
Biggest Boostpredicted_SO: 1.0970 -> 2.0000 (boost 0.9030, worse)
Biggest Deboostpredicted_AB: 4.5700 -> 3.0000 (deboost -1.5700, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend42231predicted_SLG: 0.4280 -> 0.4398 (boost 0.0118, better)predicted_AB: 4.5700 -> 4.2959 (deboost -0.2741, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3285 -> 0.2956 (deboost -0.0329, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62424predicted_AB: 4.2959 -> 5.0000 (boost 0.7041, better)predicted_BB: 0.3795 -> 0.0000 (deboost -0.3795, worse)AB rounded to 5 (raw=4.57), rates preserved: AVG=0.219 HR/AB=0.047
5bvp_blend00000--Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.200)
6consistency_constraints11010predicted_R: 0.5381 -> 1.0000 (boost 0.4619, better)-Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context30303-predicted_SLG: 0.4247 -> 0.2000 (deboost -0.2247, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference62415predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 5.0000 -> 3.0000 (deboost -2.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final33030predicted_SLG: 0.2000 -> 0.4247 (boost 0.2247, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "683002",
  "player_name": "Gunnar Henderson",
  "position": "SS",
  "team": "BAL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.181,
        "predicted_3B": 0.014,
        "predicted_AB": 4.57,
        "predicted_AVG": 0.229,
        "predicted_BB": 0.347,
        "predicted_H": 1.05,
        "predicted_HR": 0.21,
        "predicted_OBP": 0.326,
        "predicted_R": 0.528,
        "predicted_RBI": 0.57,
        "predicted_SLG": 0.428,
        "predicted_SO": 1.097
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1508,
        "predicted_3B": 0.0114,
        "predicted_AB": 4.2959,
        "predicted_AVG": 0.2362,
        "predicted_BB": 0.3806,
        "predicted_H": 1.0143,
        "predicted_HBP": 0.092,
        "predicted_HR": 0.2194,
        "predicted_OBP": 0.3285,
        "predicted_R": 0.5489,
        "predicted_RBI": 0.5555,
        "predicted_SLG": 0.4398,
        "predicted_SO": 1.0144
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.181,
          "after": 0.1508,
          "delta": -0.0302,
          "percent_delta": -0.1669,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.014,
          "after": 0.0114,
          "delta": -0.0026,
          "percent_delta": -0.1857,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.57,
          "after": 4.2959,
          "delta": -0.2741,
          "percent_delta": -0.06,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.229,
          "after": 0.2362,
          "delta": 0.0072,
          "percent_delta": 0.0314,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.347,
          "after": 0.3806,
          "delta": 0.0336,
          "percent_delta": 0.0968,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.05,
          "after": 1.0143,
          "delta": -0.0357,
          "percent_delta": -0.034,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.21,
          "after": 0.2194,
          "delta": 0.0094,
          "percent_delta": 0.0448,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.326,
          "after": 0.3285,
          "delta": 0.0025,
          "percent_delta": 0.0077,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.528,
          "after": 0.5489,
          "delta": 0.0209,
          "percent_delta": 0.0396,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.57,
          "after": 0.5555,
          "delta": -0.0145,
          "percent_delta": -0.0254,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.428,
          "after": 0.4398,
          "delta": 0.0118,
          "percent_delta": 0.0276,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.097,
          "after": 1.0144,
          "delta": -0.0826,
          "percent_delta": -0.0753,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 2,
        "deboosted_metrics": 2,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.428,
          "after": 0.4398,
          "delta": 0.0118,
          "percent_delta": 0.0276,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.57,
          "after": 4.2959,
          "delta": -0.2741,
          "percent_delta": -0.06,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 72
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1508,
        "predicted_3B": 0.0114,
        "predicted_AB": 4.2959,
        "predicted_AVG": 0.2333,
        "predicted_BB": 0.3795,
        "predicted_H": 1.0024,
        "predicted_HBP": 0.092,
        "predicted_HR": 0.2162,
        "predicted_OBP": 0.2956,
        "predicted_R": 0.5381,
        "predicted_RBI": 0.5446,
        "predicted_SLG": 0.4247,
        "predicted_SO": 1.0173
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1508,
          "after": 0.1508,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0114,
          "after": 0.0114,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.2959,
          "after": 4.2959,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2362,
          "after": 0.2333,
          "delta": -0.0029,
          "percent_delta": -0.0123,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3806,
          "after": 0.3795,
          "delta": -0.0011,
          "percent_delta": -0.0029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0143,
          "after": 1.0024,
          "delta": -0.0119,
          "percent_delta": -0.0117,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.092,
          "after": 0.092,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2194,
          "after": 0.2162,
          "delta": -0.0032,
          "percent_delta": -0.0146,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3285,
          "after": 0.2956,
          "delta": -0.0329,
          "percent_delta": -0.1002,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5489,
          "after": 0.5381,
          "delta": -0.0108,
          "percent_delta": -0.0197,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5555,
          "after": 0.5446,
          "delta": -0.0109,
          "percent_delta": -0.0196,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4398,
          "after": 0.4247,
          "delta": -0.0151,
          "percent_delta": -0.0343,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0144,
          "after": 1.0173,
          "delta": 0.0029,
          "percent_delta": 0.0029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3285,
          "after": 0.2956,
          "delta": -0.0329,
          "percent_delta": -0.1002,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 5 (raw=4.57), rates preserved: AVG=0.219 HR/AB=0.047",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1508,
          "after": 0.0,
          "delta": -0.1508,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0114,
          "after": 0.0,
          "delta": -0.0114,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.2959,
          "after": 5.0,
          "delta": 0.7041,
          "percent_delta": 0.1639,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3795,
          "after": 0.0,
          "delta": -0.3795,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0024,
          "after": 1.0,
          "delta": -0.0024,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.092,
          "after": 0.0,
          "delta": -0.092,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.2162,
          "after": 0.0,
          "delta": -0.2162,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5446,
          "after": 1.0,
          "delta": 0.4554,
          "percent_delta": 0.8362,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0173,
          "after": 1.0,
          "delta": -0.0173,
          "percent_delta": -0.017,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 4.2959,
          "after": 5.0,
          "delta": 0.7041,
          "percent_delta": 0.1639,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3795,
          "after": 0.0,
          "delta": -0.3795,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.200)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9429,
        "bvp": 0.0571
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5381,
          "after": 1.0,
          "delta": 0.4619,
          "percent_delta": 0.8584,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5381,
          "after": 1.0,
          "delta": 0.4619,
          "percent_delta": 0.8584,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.2,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.2,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2333,
          "after": 0.2,
          "delta": -0.0333,
          "percent_delta": -0.1427,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2956,
          "after": 0.2,
          "delta": -0.0956,
          "percent_delta": -0.3234,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4247,
          "after": 0.2,
          "delta": -0.2247,
          "percent_delta": -0.5291,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4247,
          "after": 0.2,
          "delta": -0.2247,
          "percent_delta": -0.5291,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 3.0,
          "delta": -2.0,
          "percent_delta": -0.4,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 3.0,
          "delta": -2.0,
          "percent_delta": -0.4,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2333,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2956,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4247,
        "predicted_SO": 2.0,
        "predicted_SS": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2,
          "after": 0.2333,
          "delta": 0.0333,
          "percent_delta": 0.1667,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2,
          "after": 0.2956,
          "delta": 0.0956,
          "percent_delta": 0.4779,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2,
          "after": 0.4247,
          "delta": 0.2247,
          "percent_delta": 1.1236,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.2,
          "after": 0.4247,
          "delta": 0.2247,
          "percent_delta": 1.1236,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.181,
        "after": 0.0,
        "delta": -0.181,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.014,
        "after": 0.0,
        "delta": -0.014,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.57,
        "after": 3.0,
        "delta": -1.57,
        "percent_delta": -0.3435,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.229,
        "after": 0.2333,
        "delta": 0.0043,
        "percent_delta": 0.0188,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.347,
        "after": 1.0,
        "delta": 0.653,
        "percent_delta": 1.8818,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.05,
        "after": 0.0,
        "delta": -1.05,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.21,
        "after": 0.0,
        "delta": -0.21,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.326,
        "after": 0.2956,
        "delta": -0.0304,
        "percent_delta": -0.0933,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.528,
        "after": 0.0,
        "delta": -0.528,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.57,
        "after": 0.0,
        "delta": -0.57,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.428,
        "after": 0.4247,
        "delta": -0.0033,
        "percent_delta": -0.0077,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.097,
        "after": 2.0,
        "delta": 0.903,
        "percent_delta": 0.8232,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 2,
      "deboosted_metrics": 7,
      "better_metrics": 1,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 1.097,
        "after": 2.0,
        "delta": 0.903,
        "percent_delta": 0.8232,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 4.57,
        "after": 3.0,
        "delta": -1.57,
        "percent_delta": -0.3435,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.181-
predicted_3B0.014-
predicted_AB4.570-
predicted_AVG0.229-
predicted_BB0.347-
predicted_H1.050-
predicted_HR0.210-
predicted_OBP0.326-
predicted_R0.528-
predicted_RBI0.570-
predicted_SLG0.428-
predicted_SO1.097-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.151-0.030
predicted_3B0.011-0.003
predicted_AB4.296-0.274
predicted_AVG0.2360.007
predicted_BB0.3810.034
predicted_H1.014-0.036
predicted_HBP0.092-
predicted_HR0.2190.009
predicted_OBP0.3290.003
predicted_R0.5490.021
predicted_RBI0.555-0.014
predicted_SLG0.4400.012
predicted_SO1.014-0.083
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1510.000
predicted_3B0.0110.000
predicted_AB4.2960.000
predicted_AVG0.233-0.003
predicted_BB0.380-0.001
predicted_H1.002-0.012
predicted_HBP0.0920.000
predicted_HR0.216-0.003
predicted_OBP0.296-0.033
predicted_R0.538-0.011
predicted_RBI0.545-0.011
predicted_SLG0.425-0.015
predicted_SO1.0170.003
4. ab_floor_and_scaling

AB rounded to 5 (raw=4.57), rates preserved: AVG=0.219 HR/AB=0.047

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB5.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.200)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB5.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI1.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB5.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.151
predicted_3B0.000-0.011
predicted_AB5.0000.704
predicted_AVG0.200-0.033
predicted_BB0.000-0.380
predicted_H1.000-0.002
predicted_HR0.000-0.216
predicted_OBP0.200-0.096
predicted_R1.0000.462
predicted_RBI1.0000.455
predicted_SLG0.200-0.225
predicted_SO1.000-0.017
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-2.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 72
Reference playing time: 4.570
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0006.0000.0000.0002.0004.0004.0002.0003.0000.33330.42860.66670.33330.11110.22220.11110.1667
last_100.2010-36.0008.0000.0000.0002.0004.0005.0007.0007.0000.22220.36360.38890.22220.05560.11110.19440.1944
season0.6072-299.00067.00013.0001.00014.00035.00038.00025.00079.0000.22410.29180.41470.22410.04680.11710.08360.2642
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1100
predicted_3B0.0080
predicted_AB3.9260
predicted_AVG0.2460
predicted_BB0.4260
predicted_H0.9660
predicted_HBP0.0920
predicted_HR0.2320
predicted_OBP0.3318
predicted_R0.5770
predicted_RBI0.5360
predicted_SLG0.4557
predicted_SO0.9030
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.18100.11000.1508model_form_blend
predicted_3B0.01400.00800.0114model_form_blend
predicted_AB4.57003.92604.2959model_form_blend
predicted_AVG0.22900.24600.2362model_form_blend
predicted_BB0.34700.42600.3806model_form_blend
predicted_H1.05000.96601.0143model_form_blend
predicted_HBP-0.09200.0920form_only
predicted_HR0.21000.23200.2194model_form_blend
predicted_OBP0.32600.33180.3285model_form_blend
predicted_R0.52800.57700.5489model_form_blend
predicted_RBI0.57000.53600.5555model_form_blend
predicted_SLG0.42800.45570.4398model_form_blend
predicted_SO1.09700.90301.0144model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date271
Season rows before report date271
Report year2026
Profile rows used72
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO2
SF0
HBP0
season_avg0.224

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R1
Hitting_RBI2
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB4
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedSS
gameID20260617_BAL@SEA
game_typefull
mlbID683002
playerID683002
playerNameGunnar Henderson
posSS
startedTrue
startingPositionSS
teamBAL
teamID3
game_date2026-06-17
sl_k_percent24.3
sl_bb_percent7.7
sl_woba0.313
sl_xwoba0.31
sl_xba0.237
sl_xslg0.401
sl_sweet_spot_percent30.1
sl_barrel_batted_rate8.8
sl_hard_hit_percent45.6
sl_exit_velocity_avg89.4
sl_launch_angle_avg12.0
sl_whiff_percent24.6
sl_swing_percent49.0
Taylor Ward (621493) · BATTER · LF · Team BAL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 269
All-history rows before 20260618: 269
System season_avg: 0.2580
Data season_avg (2026 season-to-date): 0.2629
Diff (system - data): -0.0049
System opponent_avg: 0.0670

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2360.0000.000Hitting_2B0.2750.000-0.2750.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.2103.0004.000Hitting_AB3.6775.000-0.677-2.000
predicted_AVG0.2350.3330.250Hitting_AVG0.2630.2000.0700.133
predicted_BB0.8471.0001.000Hitting_BB0.8920.0000.1081.000
predicted_CS-0.0000.000BaseRunning_CS0.0300.000-0.0300.000
predicted_H0.9901.0001.000Hitting_H0.9671.0000.0330.000
predicted_HR0.0900.0000.000Hitting_HR0.0370.000-0.0370.000
predicted_OBP0.3510.5000.400Hitting_OBP0.4070.2000.0930.300
predicted_R0.6110.0001.000Hitting_R0.5910.000-0.5910.000
predicted_RBI0.3200.0000.000Hitting_RBI0.2830.000-0.2830.000
predicted_SLG0.3610.3330.250Hitting_SLG0.3680.200-0.0350.133
predicted_SO0.9171.0001.000Hitting_SO0.9001.0000.1000.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics3
Deboosted Metrics6
Better Metrics2
Worse Metrics7
Biggest Boostpredicted_BB: 0.8470 -> 1.0000 (boost 0.1530, better)
Biggest Deboostpredicted_AB: 4.2100 -> 3.0000 (deboost -1.2100, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend41313predicted_OBP: 0.3510 -> 0.3573 (boost 0.0063, better)predicted_AB: 4.2100 -> 4.0631 (deboost -0.1469, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_SLG: 0.3516 -> 0.3452 (deboost -0.0064, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_BB: 0.7847 -> 1.0000 (boost 0.2153, better)predicted_RBI: 0.2766 -> 0.0000 (deboost -0.2766, worse)AB rounded to 4 (raw=4.21), rates preserved: AVG=0.228 HR/AB=0.017
5bvp_blend00000--Sample-size BvP blend (BvP AB=15.0, weight=0.133, BvP AVG=0.067)
6consistency_constraints11010predicted_R: 0.5890 -> 1.0000 (boost 0.4110, better)-Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context32121predicted_OBP: 0.3598 -> 0.4000 (boost 0.0402, better)predicted_SLG: 0.3452 -> 0.2500 (deboost -0.0952, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference20202-predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final31212predicted_SLG: 0.2500 -> 0.3452 (boost 0.0952, better)predicted_OBP: 0.4000 -> 0.3598 (deboost -0.0402, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "621493",
  "player_name": "Taylor Ward",
  "position": "LF",
  "team": "BAL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.236,
        "predicted_3B": 0.0,
        "predicted_AB": 4.21,
        "predicted_AVG": 0.235,
        "predicted_BB": 0.847,
        "predicted_H": 0.99,
        "predicted_HR": 0.09,
        "predicted_OBP": 0.351,
        "predicted_R": 0.611,
        "predicted_RBI": 0.32,
        "predicted_SLG": 0.361,
        "predicted_SO": 0.917
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2215,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.0631,
        "predicted_AVG": 0.2391,
        "predicted_BB": 0.787,
        "predicted_H": 0.9708,
        "predicted_HBP": 0.064,
        "predicted_HR": 0.0747,
        "predicted_OBP": 0.3573,
        "predicted_R": 0.6008,
        "predicted_RBI": 0.2821,
        "predicted_SLG": 0.3516,
        "predicted_SO": 0.8753
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.236,
          "after": 0.2215,
          "delta": -0.0145,
          "percent_delta": -0.0614,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.21,
          "after": 4.0631,
          "delta": -0.1469,
          "percent_delta": -0.0349,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.235,
          "after": 0.2391,
          "delta": 0.0041,
          "percent_delta": 0.0174,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.847,
          "after": 0.787,
          "delta": -0.06,
          "percent_delta": -0.0708,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.99,
          "after": 0.9708,
          "delta": -0.0192,
          "percent_delta": -0.0194,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.09,
          "after": 0.0747,
          "delta": -0.0153,
          "percent_delta": -0.17,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.351,
          "after": 0.3573,
          "delta": 0.0063,
          "percent_delta": 0.0179,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.611,
          "after": 0.6008,
          "delta": -0.0102,
          "percent_delta": -0.0167,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.32,
          "after": 0.2821,
          "delta": -0.0379,
          "percent_delta": -0.1184,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.361,
          "after": 0.3516,
          "delta": -0.0094,
          "percent_delta": -0.026,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.917,
          "after": 0.8753,
          "delta": -0.0417,
          "percent_delta": -0.0455,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 1,
        "deboosted_metrics": 3,
        "better_metrics": 1,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.351,
          "after": 0.3573,
          "delta": 0.0063,
          "percent_delta": 0.0179,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.21,
          "after": 4.0631,
          "delta": -0.1469,
          "percent_delta": -0.0349,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 72
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2215,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.0631,
        "predicted_AVG": 0.2361,
        "predicted_BB": 0.7847,
        "predicted_H": 0.9594,
        "predicted_HBP": 0.064,
        "predicted_HR": 0.0736,
        "predicted_OBP": 0.3598,
        "predicted_R": 0.589,
        "predicted_RBI": 0.2766,
        "predicted_SLG": 0.3452,
        "predicted_SO": 0.8778
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2215,
          "after": 0.2215,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0631,
          "after": 4.0631,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2391,
          "after": 0.2361,
          "delta": -0.003,
          "percent_delta": -0.0125,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.787,
          "after": 0.7847,
          "delta": -0.0023,
          "percent_delta": -0.0029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9708,
          "after": 0.9594,
          "delta": -0.0114,
          "percent_delta": -0.0117,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.064,
          "after": 0.064,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0747,
          "after": 0.0736,
          "delta": -0.0011,
          "percent_delta": -0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3573,
          "after": 0.3598,
          "delta": 0.0025,
          "percent_delta": 0.007,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.6008,
          "after": 0.589,
          "delta": -0.0118,
          "percent_delta": -0.0196,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2821,
          "after": 0.2766,
          "delta": -0.0055,
          "percent_delta": -0.0195,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3516,
          "after": 0.3452,
          "delta": -0.0064,
          "percent_delta": -0.0182,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8753,
          "after": 0.8778,
          "delta": 0.0025,
          "percent_delta": 0.0029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3516,
          "after": 0.3452,
          "delta": -0.0064,
          "percent_delta": -0.0182,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.21), rates preserved: AVG=0.228 HR/AB=0.017",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2215,
          "after": 0.0,
          "delta": -0.2215,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0631,
          "after": 4.0,
          "delta": -0.0631,
          "percent_delta": -0.0155,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.7847,
          "after": 1.0,
          "delta": 0.2153,
          "percent_delta": 0.2744,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9594,
          "after": 1.0,
          "delta": 0.0406,
          "percent_delta": 0.0423,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.064,
          "after": 0.0,
          "delta": -0.064,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0736,
          "after": 0.0,
          "delta": -0.0736,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2766,
          "after": 0.0,
          "delta": -0.2766,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8778,
          "after": 1.0,
          "delta": 0.1222,
          "percent_delta": 0.1392,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.7847,
          "after": 1.0,
          "delta": 0.2153,
          "percent_delta": 0.2744,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.2766,
          "after": 0.0,
          "delta": -0.2766,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=15.0, weight=0.133, BvP AVG=0.067)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.8667,
        "bvp": 0.1333
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.589,
          "after": 1.0,
          "delta": 0.411,
          "percent_delta": 0.6978,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.589,
          "after": 1.0,
          "delta": 0.411,
          "percent_delta": 0.6978,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.4,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2361,
          "after": 0.25,
          "delta": 0.0139,
          "percent_delta": 0.0589,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3598,
          "after": 0.4,
          "delta": 0.0402,
          "percent_delta": 0.1117,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3452,
          "after": 0.25,
          "delta": -0.0952,
          "percent_delta": -0.2758,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3598,
          "after": 0.4,
          "delta": 0.0402,
          "percent_delta": 0.1117,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3452,
          "after": 0.25,
          "delta": -0.0952,
          "percent_delta": -0.2758,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2361,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_LF": 0.0,
        "predicted_OBP": 0.3598,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3452,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2361,
          "delta": -0.0139,
          "percent_delta": -0.0555,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3598,
          "delta": -0.0402,
          "percent_delta": -0.1005,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3452,
          "delta": 0.0952,
          "percent_delta": 0.3808,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3452,
          "delta": 0.0952,
          "percent_delta": 0.3808,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3598,
          "delta": -0.0402,
          "percent_delta": -0.1005,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.236,
        "after": 0.0,
        "delta": -0.236,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.21,
        "after": 3.0,
        "delta": -1.21,
        "percent_delta": -0.2874,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.235,
        "after": 0.2361,
        "delta": 0.0011,
        "percent_delta": 0.0047,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.847,
        "after": 1.0,
        "delta": 0.153,
        "percent_delta": 0.1806,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.99,
        "after": 1.0,
        "delta": 0.01,
        "percent_delta": 0.0101,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.09,
        "after": 0.0,
        "delta": -0.09,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.351,
        "after": 0.3598,
        "delta": 0.0088,
        "percent_delta": 0.0251,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.611,
        "after": 0.0,
        "delta": -0.611,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.32,
        "after": 0.0,
        "delta": -0.32,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.361,
        "after": 0.3452,
        "delta": -0.0158,
        "percent_delta": -0.0438,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.917,
        "after": 1.0,
        "delta": 0.083,
        "percent_delta": 0.0905,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 3,
      "deboosted_metrics": 6,
      "better_metrics": 2,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.847,
        "after": 1.0,
        "delta": 0.153,
        "percent_delta": 0.1806,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 4.21,
        "after": 3.0,
        "delta": -1.21,
        "percent_delta": -0.2874,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.236-
predicted_3B0.000-
predicted_AB4.210-
predicted_AVG0.235-
predicted_BB0.847-
predicted_H0.990-
predicted_HR0.090-
predicted_OBP0.351-
predicted_R0.611-
predicted_RBI0.320-
predicted_SLG0.361-
predicted_SO0.917-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.222-0.014
predicted_3B0.0000.000
predicted_AB4.063-0.147
predicted_AVG0.2390.004
predicted_BB0.787-0.060
predicted_H0.971-0.019
predicted_HBP0.064-
predicted_HR0.075-0.015
predicted_OBP0.3570.006
predicted_R0.601-0.010
predicted_RBI0.282-0.038
predicted_SLG0.352-0.009
predicted_SO0.875-0.042
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2220.000
predicted_3B0.0000.000
predicted_AB4.0630.000
predicted_AVG0.236-0.003
predicted_BB0.785-0.002
predicted_H0.959-0.011
predicted_HBP0.0640.000
predicted_HR0.074-0.001
predicted_OBP0.3600.003
predicted_R0.589-0.012
predicted_RBI0.277-0.006
predicted_SLG0.345-0.006
predicted_SO0.8780.003
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.21), rates preserved: AVG=0.228 HR/AB=0.017

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=15.0, weight=0.133, BvP AVG=0.067)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.222
predicted_3B0.000-0.000
predicted_AB4.000-0.063
predicted_AVG0.2500.014
predicted_BB1.0000.215
predicted_H1.0000.041
predicted_HR0.000-0.074
predicted_OBP0.4000.040
predicted_R1.0000.411
predicted_RBI0.000-0.277
predicted_SLG0.250-0.095
predicted_SO1.0000.122
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB1.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 72
Reference playing time: 4.210
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-22.0004.0001.0000.0000.0000.0002.0002.0004.0000.18180.25000.22730.18180.00000.00000.09090.1818
last_100.2010-38.00010.0001.0000.0001.0002.0007.0007.0005.0000.26320.40430.36840.26320.02630.05260.18420.1316
season0.6072-267.00069.00017.0000.0003.00019.00044.00061.00066.0000.25840.39940.35580.25840.01120.07120.22850.2472
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2020
predicted_3B0.0010
predicted_AB3.8650
predicted_AVG0.2446
predicted_BB0.7060
predicted_H0.9450
predicted_HBP0.0640
predicted_HR0.0540
predicted_OBP0.3658
predicted_R0.5870
predicted_RBI0.2310
predicted_SLG0.3390
predicted_SO0.8190
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.23600.20200.2215model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.21003.86504.0631model_form_blend
predicted_AVG0.23500.24460.2391model_form_blend
predicted_BB0.84700.70600.7870model_form_blend
predicted_H0.99000.94500.9708model_form_blend
predicted_HBP-0.06400.0640form_only
predicted_HR0.09000.05400.0747model_form_blend
predicted_OBP0.35100.36580.3573model_form_blend
predicted_R0.61100.58700.6008model_form_blend
predicted_RBI0.32000.23100.2821model_form_blend
predicted_SLG0.36100.33900.3516model_form_blend
predicted_SO0.91700.81900.8753model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date269
Season rows before report date269
Report year2026
Profile rows used72
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B0
3B0
HR0
R0
RBI0
BB1
SO1
SF0
HBP0
season_avg0.258

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.2
Hitting_BB0
Hitting_GIDP1
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB1
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedLF
gameID20260617_BAL@SEA
game_typefull
mlbID621493
playerID621493
playerNameTaylor Ward
posLF
startedTrue
startingPositionLF
teamBAL
teamID3
game_date2026-06-17
sl_k_percent19.9
sl_bb_percent18.5
sl_woba0.347
sl_xwoba0.356
sl_xba0.257
sl_xslg0.382
sl_sweet_spot_percent35.3
sl_barrel_batted_rate4.8
sl_hard_hit_percent40.6
sl_exit_velocity_avg89.6
sl_launch_angle_avg14.7
sl_whiff_percent17.4
sl_swing_percent32.3
Samuel Basallo (694212) · BATTER · C · Team BAL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 179
All-history rows before 20260618: 179
System season_avg: 0.2640
Data season_avg (2026 season-to-date): 0.2672
Diff (system - data): -0.0032
System opponent_avg: 0.1850

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1500.0000.000Hitting_2B0.1620.000-0.1620.000
predicted_3B0.0170.0000.000Hitting_3B0.0220.000-0.0220.000
predicted_AB3.4504.0003.000Hitting_AB3.5754.0000.4250.000
predicted_AVG0.2510.0000.333Hitting_AVG0.2670.500-0.267-0.500
predicted_BB0.3000.0000.000Hitting_BB0.3350.000-0.3350.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.8700.0001.000Hitting_H0.9552.000-0.955-2.000
predicted_HR0.1500.0000.000Hitting_HR0.1840.000-0.1840.000
predicted_OBP0.3090.0000.333Hitting_OBP0.3270.500-0.327-0.500
predicted_R0.4500.0000.000Hitting_R0.5080.000-0.5080.000
predicted_RBI0.4900.0000.000Hitting_RBI0.5250.000-0.5250.000
predicted_SLG0.4250.0000.333Hitting_SLG0.4800.500-0.480-0.500
predicted_SO0.9330.0001.000Hitting_SO1.0390.000-1.0390.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics8
Boosted Metrics1
Deboosted Metrics7
Better Metrics2
Worse Metrics6
Biggest Boostpredicted_AB: 3.4500 -> 4.0000 (boost 0.5500, better)
Biggest Deboostpredicted_SO: 0.9330 -> 0.0000 (deboost -0.9330, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend00000--Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot00000--Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_H: 0.8688 -> 1.0000 (boost 0.1312, better)predicted_RBI: 0.4845 -> 0.0000 (deboost -0.4845, worse)AB rounded to 3 (raw=3.45), rates preserved: AVG=0.252 HR/AB=0.044
5consistency_constraints10101-predicted_R: 0.4208 -> 0.0000 (deboost -0.4208, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2525 -> 0.3330 (boost 0.0805, better)predicted_SLG: 0.4296 -> 0.3330 (deboost -0.0966, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference31221predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.4296 (boost 0.0966, better)predicted_AVG: 0.3330 -> 0.2525 (deboost -0.0805, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "694212",
  "player_name": "Samuel Basallo",
  "position": "C",
  "team": "BAL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.15,
        "predicted_3B": 0.017,
        "predicted_AB": 3.45,
        "predicted_AVG": 0.251,
        "predicted_BB": 0.3,
        "predicted_H": 0.87,
        "predicted_HR": 0.15,
        "predicted_OBP": 0.309,
        "predicted_R": 0.45,
        "predicted_RBI": 0.49,
        "predicted_SLG": 0.425,
        "predicted_SO": 0.933
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1297,
        "predicted_3B": 0.0145,
        "predicted_AB": 3.4413,
        "predicted_AVG": 0.2548,
        "predicted_BB": 0.2776,
        "predicted_H": 0.8791,
        "predicted_HBP": 0.004,
        "predicted_HR": 0.1525,
        "predicted_OBP": 0.3088,
        "predicted_R": 0.4292,
        "predicted_RBI": 0.4942,
        "predicted_SLG": 0.428,
        "predicted_SO": 0.9122
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.15,
          "after": 0.1297,
          "delta": -0.0203,
          "percent_delta": -0.1353,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.017,
          "after": 0.0145,
          "delta": -0.0025,
          "percent_delta": -0.1471,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.45,
          "after": 3.4413,
          "delta": -0.0087,
          "percent_delta": -0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.251,
          "after": 0.2548,
          "delta": 0.0038,
          "percent_delta": 0.0151,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3,
          "after": 0.2776,
          "delta": -0.0224,
          "percent_delta": -0.0747,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.87,
          "after": 0.8791,
          "delta": 0.0091,
          "percent_delta": 0.0105,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.15,
          "after": 0.1525,
          "delta": 0.0025,
          "percent_delta": 0.0167,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.309,
          "after": 0.3088,
          "delta": -0.0002,
          "percent_delta": -0.0006,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.45,
          "after": 0.4292,
          "delta": -0.0208,
          "percent_delta": -0.0462,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.49,
          "after": 0.4942,
          "delta": 0.0042,
          "percent_delta": 0.0086,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.425,
          "after": 0.428,
          "delta": 0.003,
          "percent_delta": 0.0071,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.933,
          "after": 0.9122,
          "delta": -0.0208,
          "percent_delta": -0.0223,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 60
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1297,
        "predicted_3B": 0.0145,
        "predicted_AB": 3.4413,
        "predicted_AVG": 0.2525,
        "predicted_BB": 0.2768,
        "predicted_H": 0.8688,
        "predicted_HBP": 0.004,
        "predicted_HR": 0.1503,
        "predicted_OBP": 0.3081,
        "predicted_R": 0.4208,
        "predicted_RBI": 0.4845,
        "predicted_SLG": 0.4296,
        "predicted_SO": 0.9148
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1297,
          "after": 0.1297,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0145,
          "after": 0.0145,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4413,
          "after": 3.4413,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2548,
          "after": 0.2525,
          "delta": -0.0023,
          "percent_delta": -0.009,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2776,
          "after": 0.2768,
          "delta": -0.0008,
          "percent_delta": -0.0029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8791,
          "after": 0.8688,
          "delta": -0.0103,
          "percent_delta": -0.0117,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.004,
          "after": 0.004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1525,
          "after": 0.1503,
          "delta": -0.0022,
          "percent_delta": -0.0144,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3088,
          "after": 0.3081,
          "delta": -0.0007,
          "percent_delta": -0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4292,
          "after": 0.4208,
          "delta": -0.0084,
          "percent_delta": -0.0196,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4942,
          "after": 0.4845,
          "delta": -0.0097,
          "percent_delta": -0.0196,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.428,
          "after": 0.4296,
          "delta": 0.0016,
          "percent_delta": 0.0037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.9122,
          "after": 0.9148,
          "delta": 0.0026,
          "percent_delta": 0.0029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.45), rates preserved: AVG=0.252 HR/AB=0.044",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1297,
          "after": 0.0,
          "delta": -0.1297,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0145,
          "after": 0.0,
          "delta": -0.0145,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4413,
          "after": 3.0,
          "delta": -0.4413,
          "percent_delta": -0.1282,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2768,
          "after": 0.0,
          "delta": -0.2768,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8688,
          "after": 1.0,
          "delta": 0.1312,
          "percent_delta": 0.151,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.004,
          "after": 0.0,
          "delta": -0.004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1503,
          "after": 0.0,
          "delta": -0.1503,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4845,
          "after": 0.0,
          "delta": -0.4845,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9148,
          "after": 1.0,
          "delta": 0.0852,
          "percent_delta": 0.0931,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.8688,
          "after": 1.0,
          "delta": 0.1312,
          "percent_delta": 0.151,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4845,
          "after": 0.0,
          "delta": -0.4845,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4208,
          "after": 0.0,
          "delta": -0.4208,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4208,
          "after": 0.0,
          "delta": -0.4208,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2525,
          "after": 0.333,
          "delta": 0.0805,
          "percent_delta": 0.3188,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3081,
          "after": 0.333,
          "delta": 0.0249,
          "percent_delta": 0.0808,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4296,
          "after": 0.333,
          "delta": -0.0966,
          "percent_delta": -0.2249,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2525,
          "after": 0.333,
          "delta": 0.0805,
          "percent_delta": 0.3188,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4296,
          "after": 0.333,
          "delta": -0.0966,
          "percent_delta": -0.2249,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2525,
        "predicted_BB": 0.0,
        "predicted_C": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3081,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4296,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2525,
          "delta": -0.0805,
          "percent_delta": -0.2418,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3081,
          "delta": -0.0249,
          "percent_delta": -0.0747,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4296,
          "delta": 0.0966,
          "percent_delta": 0.29,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4296,
          "delta": 0.0966,
          "percent_delta": 0.29,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2525,
          "delta": -0.0805,
          "percent_delta": -0.2418,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.15,
        "after": 0.0,
        "delta": -0.15,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.017,
        "after": 0.0,
        "delta": -0.017,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.45,
        "after": 4.0,
        "delta": 0.55,
        "percent_delta": 0.1594,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.251,
        "after": 0.2525,
        "delta": 0.0015,
        "percent_delta": 0.006,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.3,
        "after": 0.0,
        "delta": -0.3,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.87,
        "after": 0.0,
        "delta": -0.87,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.15,
        "after": 0.0,
        "delta": -0.15,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.309,
        "after": 0.3081,
        "delta": -0.0009,
        "percent_delta": -0.0029,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.45,
        "after": 0.0,
        "delta": -0.45,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.49,
        "after": 0.0,
        "delta": -0.49,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.425,
        "after": 0.4296,
        "delta": 0.0046,
        "percent_delta": 0.0108,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.933,
        "after": 0.0,
        "delta": -0.933,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 8,
      "boosted_metrics": 1,
      "deboosted_metrics": 7,
      "better_metrics": 2,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.45,
        "after": 4.0,
        "delta": 0.55,
        "percent_delta": 0.1594,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.933,
        "after": 0.0,
        "delta": -0.933,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.150-
predicted_3B0.017-
predicted_AB3.450-
predicted_AVG0.251-
predicted_BB0.300-
predicted_H0.870-
predicted_HR0.150-
predicted_OBP0.309-
predicted_R0.450-
predicted_RBI0.490-
predicted_SLG0.425-
predicted_SO0.933-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.130-0.020
predicted_3B0.015-0.003
predicted_AB3.441-0.009
predicted_AVG0.2550.004
predicted_BB0.278-0.022
predicted_H0.8790.009
predicted_HBP0.004-
predicted_HR0.1520.003
predicted_OBP0.309-0.000
predicted_R0.429-0.021
predicted_RBI0.4940.004
predicted_SLG0.4280.003
predicted_SO0.912-0.021
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1300.000
predicted_3B0.0150.000
predicted_AB3.4410.000
predicted_AVG0.253-0.002
predicted_BB0.277-0.001
predicted_H0.869-0.010
predicted_HBP0.0040.000
predicted_HR0.150-0.002
predicted_OBP0.308-0.001
predicted_R0.421-0.008
predicted_RBI0.484-0.010
predicted_SLG0.4300.002
predicted_SO0.9150.003
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.45), rates preserved: AVG=0.252 HR/AB=0.044

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.130
predicted_3B0.000-0.015
predicted_AB3.000-0.441
predicted_AVG0.3330.081
predicted_BB0.000-0.277
predicted_H1.0000.131
predicted_HR0.000-0.150
predicted_OBP0.3330.025
predicted_R0.000-0.421
predicted_RBI0.000-0.484
predicted_SLG0.333-0.097
predicted_SO1.0000.085
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 60
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-19.0006.0000.0000.0001.0003.0002.0001.0004.0000.31580.35000.47370.31580.05260.15790.05260.2105
last_100.2010-30.0006.0000.0000.0001.0004.0002.0001.0008.0000.20000.22580.30000.20000.03330.13330.03330.2667
season0.6060-201.00053.0009.0001.00010.00030.00027.00018.00056.0000.26370.32130.46770.26370.04980.14920.08960.2786
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1010
predicted_3B0.0110
predicted_AB3.4290
predicted_AVG0.2601
predicted_BB0.2460
predicted_H0.8920
predicted_HBP0.0040
predicted_HR0.1560
predicted_OBP0.3086
predicted_R0.4000
predicted_RBI0.5000
predicted_SLG0.4323
predicted_SO0.8830
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.15000.10100.1297model_form_blend
predicted_3B0.01700.01100.0145model_form_blend
predicted_AB3.45003.42903.4413model_form_blend
predicted_AVG0.25100.26010.2548model_form_blend
predicted_BB0.30000.24600.2776model_form_blend
predicted_H0.87000.89200.8791model_form_blend
predicted_HBP-0.00400.0040form_only
predicted_HR0.15000.15600.1525model_form_blend
predicted_OBP0.30900.30860.3088model_form_blend
predicted_R0.45000.40000.4292model_form_blend
predicted_RBI0.49000.50000.4942model_form_blend
predicted_SLG0.42500.43230.4280model_form_blend
predicted_SO0.93300.88300.9122model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date179
Season rows before report date179
Report year2026
Profile rows used60
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.264

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.5
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB2
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260617_BAL@SEA
game_typefull
mlbID694212
playerID694212
playerNameSamuel Basallo
posC
startedTrue
startingPositionDH
teamBAL
teamID3
game_date2026-06-17
sl_k_percent25.1
sl_bb_percent8.5
sl_woba0.341
sl_xwoba0.343
sl_xba0.264
sl_xslg0.475
sl_sweet_spot_percent35.1
sl_barrel_batted_rate12.2
sl_hard_hit_percent45.9
sl_exit_velocity_avg91.7
sl_launch_angle_avg13.7
sl_whiff_percent30.5
sl_swing_percent52.7
Colton Cowser (681297) · BATTER · CF · Team BAL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 137
All-history rows before 20260618: 137
System season_avg: 0.2210
Data season_avg (2026 season-to-date): 0.2060
Diff (system - data): 0.0150
System opponent_avg: 0.0590

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0530.0000.000Hitting_2B0.0510.000-0.0510.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.5443.0003.000Hitting_AB2.6573.0000.3430.000
predicted_AVG0.2530.0000.333Hitting_AVG0.2060.000-0.2060.000
predicted_BB0.2981.0000.000Hitting_BB0.3870.0000.6131.000
predicted_CS-0.0000.000BaseRunning_CS0.0360.000-0.0360.000
predicted_H0.5900.0001.000Hitting_H0.5470.000-0.5470.000
predicted_HR0.1300.0000.000Hitting_HR0.0880.000-0.0880.000
predicted_OBP0.2960.2500.333Hitting_OBP0.3060.000-0.0560.250
predicted_R0.3680.0000.000Hitting_R0.3800.000-0.3800.000
predicted_RBI0.3400.0000.000Hitting_RBI0.3430.000-0.3430.000
predicted_SLG0.3920.0000.333Hitting_SLG0.3240.000-0.3240.000
predicted_SO0.8771.0001.000Hitting_SO0.9852.0000.015-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics3
Deboosted Metrics6
Better Metrics2
Worse Metrics7
Biggest Boostpredicted_BB: 0.2980 -> 1.0000 (boost 0.7020, better)
Biggest Deboostpredicted_H: 0.5900 -> 0.0000 (deboost -0.5900, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend32112predicted_AB: 2.5440 -> 2.6752 (boost 0.1312, better)predicted_AVG: 0.2530 -> 0.2327 (deboost -0.0203, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_AVG: 0.2327 -> 0.2168 (deboost -0.0159, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling83526predicted_H: 0.5799 -> 1.0000 (boost 0.4201, better)predicted_RBI: 0.3341 -> 0.0000 (deboost -0.3341, worse)AB rounded to 3 (raw=2.68), rates preserved: AVG=0.217 HR/AB=0.052
5consistency_constraints10101-predicted_R: 0.3807 -> 0.0000 (deboost -0.3807, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2168 -> 0.3330 (boost 0.1162, better)predicted_SLG: 0.3936 -> 0.3330 (deboost -0.0606, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21111predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.3936 (boost 0.0606, better)predicted_AVG: 0.3330 -> 0.2168 (deboost -0.1162, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "681297",
  "player_name": "Colton Cowser",
  "position": "CF",
  "team": "BAL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.053,
        "predicted_3B": 0.0,
        "predicted_AB": 2.544,
        "predicted_AVG": 0.253,
        "predicted_BB": 0.298,
        "predicted_H": 0.59,
        "predicted_HR": 0.13,
        "predicted_OBP": 0.296,
        "predicted_R": 0.368,
        "predicted_RBI": 0.34,
        "predicted_SLG": 0.392,
        "predicted_SO": 0.877
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0526,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.6752,
        "predicted_AVG": 0.2327,
        "predicted_BB": 0.2939,
        "predicted_H": 0.5868,
        "predicted_HBP": 0.065,
        "predicted_HR": 0.1417,
        "predicted_OBP": 0.2932,
        "predicted_R": 0.3883,
        "predicted_RBI": 0.3408,
        "predicted_SLG": 0.3904,
        "predicted_SO": 0.9284
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.053,
          "after": 0.0526,
          "delta": -0.0004,
          "percent_delta": -0.0075,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.544,
          "after": 2.6752,
          "delta": 0.1312,
          "percent_delta": 0.0516,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.253,
          "after": 0.2327,
          "delta": -0.0203,
          "percent_delta": -0.0802,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.298,
          "after": 0.2939,
          "delta": -0.0041,
          "percent_delta": -0.0138,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.59,
          "after": 0.5868,
          "delta": -0.0032,
          "percent_delta": -0.0054,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.13,
          "after": 0.1417,
          "delta": 0.0117,
          "percent_delta": 0.09,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.296,
          "after": 0.2932,
          "delta": -0.0028,
          "percent_delta": -0.0095,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.368,
          "after": 0.3883,
          "delta": 0.0203,
          "percent_delta": 0.0552,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.34,
          "after": 0.3408,
          "delta": 0.0008,
          "percent_delta": 0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.392,
          "after": 0.3904,
          "delta": -0.0016,
          "percent_delta": -0.0041,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.877,
          "after": 0.9284,
          "delta": 0.0514,
          "percent_delta": 0.0586,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.544,
          "after": 2.6752,
          "delta": 0.1312,
          "percent_delta": 0.0516,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.253,
          "after": 0.2327,
          "delta": -0.0203,
          "percent_delta": -0.0802,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 57
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0526,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.6752,
        "predicted_AVG": 0.2168,
        "predicted_BB": 0.293,
        "predicted_H": 0.5799,
        "predicted_HBP": 0.065,
        "predicted_HR": 0.1396,
        "predicted_OBP": 0.2941,
        "predicted_R": 0.3807,
        "predicted_RBI": 0.3341,
        "predicted_SLG": 0.3936,
        "predicted_SO": 0.9311
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0526,
          "after": 0.0526,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.6752,
          "after": 2.6752,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2327,
          "after": 0.2168,
          "delta": -0.0159,
          "percent_delta": -0.0683,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2939,
          "after": 0.293,
          "delta": -0.0009,
          "percent_delta": -0.0031,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.5868,
          "after": 0.5799,
          "delta": -0.0069,
          "percent_delta": -0.0118,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.065,
          "after": 0.065,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1417,
          "after": 0.1396,
          "delta": -0.0021,
          "percent_delta": -0.0148,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2932,
          "after": 0.2941,
          "delta": 0.0009,
          "percent_delta": 0.0031,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3883,
          "after": 0.3807,
          "delta": -0.0076,
          "percent_delta": -0.0196,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3408,
          "after": 0.3341,
          "delta": -0.0067,
          "percent_delta": -0.0197,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3904,
          "after": 0.3936,
          "delta": 0.0032,
          "percent_delta": 0.0082,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.9284,
          "after": 0.9311,
          "delta": 0.0027,
          "percent_delta": 0.0029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2327,
          "after": 0.2168,
          "delta": -0.0159,
          "percent_delta": -0.0683,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.68), rates preserved: AVG=0.217 HR/AB=0.052",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0526,
          "after": 0.0,
          "delta": -0.0526,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.6752,
          "after": 3.0,
          "delta": 0.3248,
          "percent_delta": 0.1214,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.293,
          "after": 0.0,
          "delta": -0.293,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.5799,
          "after": 1.0,
          "delta": 0.4201,
          "percent_delta": 0.7244,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.065,
          "after": 0.0,
          "delta": -0.065,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1396,
          "after": 0.0,
          "delta": -0.1396,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3341,
          "after": 0.0,
          "delta": -0.3341,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9311,
          "after": 1.0,
          "delta": 0.0689,
          "percent_delta": 0.074,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 3,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.5799,
          "after": 1.0,
          "delta": 0.4201,
          "percent_delta": 0.7244,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3341,
          "after": 0.0,
          "delta": -0.3341,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3807,
          "after": 0.0,
          "delta": -0.3807,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3807,
          "after": 0.0,
          "delta": -0.3807,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2168,
          "after": 0.333,
          "delta": 0.1162,
          "percent_delta": 0.536,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2941,
          "after": 0.333,
          "delta": 0.0389,
          "percent_delta": 0.1323,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3936,
          "after": 0.333,
          "delta": -0.0606,
          "percent_delta": -0.154,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2168,
          "after": 0.333,
          "delta": 0.1162,
          "percent_delta": 0.536,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3936,
          "after": 0.333,
          "delta": -0.0606,
          "percent_delta": -0.154,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2168,
        "predicted_BB": 1.0,
        "predicted_CF": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2941,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3936,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2168,
          "delta": -0.1162,
          "percent_delta": -0.349,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2941,
          "delta": -0.0389,
          "percent_delta": -0.1168,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3936,
          "delta": 0.0606,
          "percent_delta": 0.182,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3936,
          "delta": 0.0606,
          "percent_delta": 0.182,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2168,
          "delta": -0.1162,
          "percent_delta": -0.349,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.053,
        "after": 0.0,
        "delta": -0.053,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.544,
        "after": 3.0,
        "delta": 0.456,
        "percent_delta": 0.1792,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.253,
        "after": 0.2168,
        "delta": -0.0362,
        "percent_delta": -0.1431,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.298,
        "after": 1.0,
        "delta": 0.702,
        "percent_delta": 2.3557,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.59,
        "after": 0.0,
        "delta": -0.59,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.13,
        "after": 0.0,
        "delta": -0.13,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.296,
        "after": 0.2941,
        "delta": -0.0019,
        "percent_delta": -0.0064,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.368,
        "after": 0.0,
        "delta": -0.368,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.34,
        "after": 0.0,
        "delta": -0.34,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.392,
        "after": 0.3936,
        "delta": 0.0016,
        "percent_delta": 0.0041,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.877,
        "after": 1.0,
        "delta": 0.123,
        "percent_delta": 0.1403,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 3,
      "deboosted_metrics": 6,
      "better_metrics": 2,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.298,
        "after": 1.0,
        "delta": 0.702,
        "percent_delta": 2.3557,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.59,
        "after": 0.0,
        "delta": -0.59,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.053-
predicted_3B0.000-
predicted_AB2.544-
predicted_AVG0.253-
predicted_BB0.298-
predicted_H0.590-
predicted_HR0.130-
predicted_OBP0.296-
predicted_R0.368-
predicted_RBI0.340-
predicted_SLG0.392-
predicted_SO0.877-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.053-0.000
predicted_3B0.0010.001
predicted_AB2.6750.131
predicted_AVG0.233-0.020
predicted_BB0.294-0.004
predicted_H0.587-0.003
predicted_HBP0.065-
predicted_HR0.1420.012
predicted_OBP0.293-0.003
predicted_R0.3880.020
predicted_RBI0.3410.001
predicted_SLG0.390-0.002
predicted_SO0.9280.051
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0530.000
predicted_3B0.0010.000
predicted_AB2.6750.000
predicted_AVG0.217-0.016
predicted_BB0.293-0.001
predicted_H0.580-0.007
predicted_HBP0.0650.000
predicted_HR0.140-0.002
predicted_OBP0.2940.001
predicted_R0.381-0.008
predicted_RBI0.334-0.007
predicted_SLG0.3940.003
predicted_SO0.9310.003
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.68), rates preserved: AVG=0.217 HR/AB=0.052

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.053
predicted_3B0.000-0.001
predicted_AB3.0000.325
predicted_AVG0.3330.116
predicted_BB0.000-0.293
predicted_H1.0000.420
predicted_HR0.000-0.140
predicted_OBP0.3330.039
predicted_R0.000-0.381
predicted_RBI0.000-0.334
predicted_SLG0.333-0.061
predicted_SO1.0000.069
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 57
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-14.0002.0000.0000.0001.0001.0002.0001.0007.0000.14290.25000.35710.14290.07140.07140.07140.5000
last_100.2010-30.0005.0000.0000.0003.0003.0005.0003.00010.0000.16670.26470.46670.16670.10000.10000.10000.3333
season0.6057-145.00032.0003.0000.0006.00020.00021.00017.00050.0000.22070.30300.36550.22070.04140.13790.11720.3448
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0520
predicted_3B0.0020
predicted_AB2.8680
predicted_AVG0.2030
predicted_BB0.2880
predicted_H0.5820
predicted_HBP0.0650
predicted_HR0.1590
predicted_OBP0.2892
predicted_R0.4180
predicted_RBI0.3420
predicted_SLG0.3880
predicted_SO1.0040
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.05300.05200.0526model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB2.54402.86802.6752model_form_blend
predicted_AVG0.25300.20300.2327model_form_blend
predicted_BB0.29800.28800.2939model_form_blend
predicted_H0.59000.58200.5868model_form_blend
predicted_HBP-0.06500.0650form_only
predicted_HR0.13000.15900.1417model_form_blend
predicted_OBP0.29600.28920.2932model_form_blend
predicted_R0.36800.41800.3883model_form_blend
predicted_RBI0.34000.34200.3408model_form_blend
predicted_SLG0.39200.38800.3904model_form_blend
predicted_SO0.87701.00400.9284model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date137
Season rows before report date137
Report year2026
Profile rows used57
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO1
SF0
HBP0
season_avg0.221

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB0
Hitting_battingOrder7
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedCF
gameID20260616_BAL@SEA
game_typefull
mlbID681297
playerID681297
playerNameColton Cowser
posRF
startedTrue
startingPositionCF
teamBAL
teamID3
game_date2026-06-16
sl_k_percent29.3
sl_bb_percent10.9
sl_woba0.305
sl_xwoba0.319
sl_xba0.209
sl_xslg0.436
sl_sweet_spot_percent30.1
sl_barrel_batted_rate12.6
sl_hard_hit_percent32.0
sl_exit_velocity_avg86.4
sl_launch_angle_avg12.4
sl_whiff_percent33.0
sl_swing_percent44.2
Leody Taveras (665750) · BATTER · RF · Team BAL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 179
All-history rows before 20260618: 179
System season_avg: 0.2540
Data season_avg (2026 season-to-date): 0.2697
Diff (system - data): -0.0157
System opponent_avg: 0.1540
System season_avg diverges from 2026 season-to-date by -0.0157. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1530.0000.000Hitting_2B0.1960.000-0.1960.000
predicted_3B0.0680.0000.000Hitting_3B0.0391.000-0.039-1.000
predicted_AB3.2033.0003.000Hitting_AB3.3354.000-0.335-1.000
predicted_AVG0.2320.0000.333Hitting_AVG0.2700.250-0.270-0.250
predicted_BB0.3561.0000.000Hitting_BB0.4360.0000.5641.000
predicted_CS-0.0000.000BaseRunning_CS0.0340.000-0.0340.000
predicted_H0.3000.0001.000Hitting_H0.8991.000-0.899-1.000
predicted_HR0.0300.0000.000Hitting_HR0.0500.000-0.0500.000
predicted_OBP0.2670.2500.333Hitting_OBP0.3570.250-0.1070.000
predicted_R0.4240.0000.000Hitting_R0.4970.000-0.4970.000
predicted_RBI0.2000.0000.000Hitting_RBI0.5421.000-0.542-1.000
predicted_SLG0.3690.0000.333Hitting_SLG0.3970.750-0.397-0.750
predicted_SO0.8470.0001.000Hitting_SO0.8102.000-0.810-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics1
Deboosted Metrics10
Better Metrics2
Worse Metrics9
Biggest Boostpredicted_BB: 0.3560 -> 1.0000 (boost 0.6440, better)
Biggest Deboostpredicted_SO: 0.8470 -> 0.0000 (deboost -0.8470, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend55041predicted_H: 0.3000 -> 0.4982 (boost 0.1982, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.3728 -> 0.2807 (deboost -0.0921, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71607predicted_SO: 0.9075 -> 1.0000 (boost 0.0925, worse)predicted_H: 0.4924 -> 0.0000 (deboost -0.4924, worse)AB rounded to 3 (raw=3.28), rates preserved: AVG=0.150 HR/AB=0.009
5bvp_blend00000--Sample-size BvP blend (BvP AB=13.0, weight=0.121, BvP AVG=0.154)
6consistency_constraints21111predicted_H: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_R: 0.3828 -> 0.0000 (deboost -0.3828, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context33030predicted_AVG: 0.1501 -> 0.3330 (boost 0.1829, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference31221predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final30303-predicted_AVG: 0.3330 -> 0.1501 (deboost -0.1829, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "665750",
  "player_name": "Leody Taveras",
  "position": "RF",
  "team": "BAL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.153,
        "predicted_3B": 0.068,
        "predicted_AB": 3.203,
        "predicted_AVG": 0.232,
        "predicted_BB": 0.356,
        "predicted_H": 0.3,
        "predicted_HR": 0.03,
        "predicted_OBP": 0.267,
        "predicted_R": 0.424,
        "predicted_RBI": 0.2,
        "predicted_SLG": 0.369,
        "predicted_SO": 0.847
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1406,
        "predicted_3B": 0.0978,
        "predicted_AB": 3.28,
        "predicted_AVG": 0.2311,
        "predicted_BB": 0.3113,
        "predicted_H": 0.4982,
        "predicted_HBP": 0.013,
        "predicted_HR": 0.0312,
        "predicted_OBP": 0.2726,
        "predicted_R": 0.3905,
        "predicted_RBI": 0.3167,
        "predicted_SLG": 0.3728,
        "predicted_SO": 0.9049
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.153,
          "after": 0.1406,
          "delta": -0.0124,
          "percent_delta": -0.081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.068,
          "after": 0.0978,
          "delta": 0.0298,
          "percent_delta": 0.4382,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.203,
          "after": 3.28,
          "delta": 0.077,
          "percent_delta": 0.024,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.232,
          "after": 0.2311,
          "delta": -0.0009,
          "percent_delta": -0.0039,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.356,
          "after": 0.3113,
          "delta": -0.0447,
          "percent_delta": -0.1256,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.3,
          "after": 0.4982,
          "delta": 0.1982,
          "percent_delta": 0.6607,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.03,
          "after": 0.0312,
          "delta": 0.0012,
          "percent_delta": 0.04,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.267,
          "after": 0.2726,
          "delta": 0.0056,
          "percent_delta": 0.021,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.424,
          "after": 0.3905,
          "delta": -0.0335,
          "percent_delta": -0.079,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2,
          "after": 0.3167,
          "delta": 0.1167,
          "percent_delta": 0.5835,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.369,
          "after": 0.3728,
          "delta": 0.0038,
          "percent_delta": 0.0103,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.847,
          "after": 0.9049,
          "delta": 0.0579,
          "percent_delta": 0.0684,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 5,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.3,
          "after": 0.4982,
          "delta": 0.1982,
          "percent_delta": 0.6607,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 59
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1406,
        "predicted_3B": 0.0978,
        "predicted_AB": 3.28,
        "predicted_AVG": 0.1501,
        "predicted_BB": 0.3104,
        "predicted_H": 0.4924,
        "predicted_HBP": 0.013,
        "predicted_HR": 0.0307,
        "predicted_OBP": 0.2236,
        "predicted_R": 0.3828,
        "predicted_RBI": 0.3105,
        "predicted_SLG": 0.2807,
        "predicted_SO": 0.9075
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1406,
          "after": 0.1406,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0978,
          "after": 0.0978,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.28,
          "after": 3.28,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2311,
          "after": 0.1501,
          "delta": -0.081,
          "percent_delta": -0.3505,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3113,
          "after": 0.3104,
          "delta": -0.0009,
          "percent_delta": -0.0029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.4982,
          "after": 0.4924,
          "delta": -0.0058,
          "percent_delta": -0.0116,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.013,
          "after": 0.013,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0312,
          "after": 0.0307,
          "delta": -0.0005,
          "percent_delta": -0.016,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2726,
          "after": 0.2236,
          "delta": -0.049,
          "percent_delta": -0.1798,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3905,
          "after": 0.3828,
          "delta": -0.0077,
          "percent_delta": -0.0197,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3167,
          "after": 0.3105,
          "delta": -0.0062,
          "percent_delta": -0.0196,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3728,
          "after": 0.2807,
          "delta": -0.0921,
          "percent_delta": -0.247,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9049,
          "after": 0.9075,
          "delta": 0.0026,
          "percent_delta": 0.0029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3728,
          "after": 0.2807,
          "delta": -0.0921,
          "percent_delta": -0.247,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.28), rates preserved: AVG=0.150 HR/AB=0.009",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1406,
          "after": 0.0,
          "delta": -0.1406,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0978,
          "after": 0.0,
          "delta": -0.0978,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AB",
          "before": 3.28,
          "after": 3.0,
          "delta": -0.28,
          "percent_delta": -0.0854,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3104,
          "after": 0.0,
          "delta": -0.3104,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.4924,
          "after": 0.0,
          "delta": -0.4924,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.013,
          "after": 0.0,
          "delta": -0.013,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0307,
          "after": 0.0,
          "delta": -0.0307,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3105,
          "after": 0.0,
          "delta": -0.3105,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9075,
          "after": 1.0,
          "delta": 0.0925,
          "percent_delta": 0.1019,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 0,
        "worse_metrics": 7,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.9075,
          "after": 1.0,
          "delta": 0.0925,
          "percent_delta": 0.1019,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 0.4924,
          "after": 0.0,
          "delta": -0.4924,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=13.0, weight=0.121, BvP AVG=0.154)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.8791,
        "bvp": 0.1209
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3828,
          "after": 0.0,
          "delta": -0.3828,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3828,
          "after": 0.0,
          "delta": -0.3828,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1501,
          "after": 0.333,
          "delta": 0.1829,
          "percent_delta": 1.2185,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2236,
          "after": 0.333,
          "delta": 0.1094,
          "percent_delta": 0.4893,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2807,
          "after": 0.333,
          "delta": 0.0523,
          "percent_delta": 0.1863,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1501,
          "after": 0.333,
          "delta": 0.1829,
          "percent_delta": 1.2185,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.1501,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2236,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_RF": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.2807,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1501,
          "delta": -0.1829,
          "percent_delta": -0.5492,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2236,
          "delta": -0.1094,
          "percent_delta": -0.3286,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.2807,
          "delta": -0.0523,
          "percent_delta": -0.157,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1501,
          "delta": -0.1829,
          "percent_delta": -0.5492,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.153,
        "after": 0.0,
        "delta": -0.153,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.068,
        "after": 0.0,
        "delta": -0.068,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AB",
        "before": 3.203,
        "after": 3.0,
        "delta": -0.203,
        "percent_delta": -0.0634,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.232,
        "after": 0.1501,
        "delta": -0.0819,
        "percent_delta": -0.353,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.356,
        "after": 1.0,
        "delta": 0.644,
        "percent_delta": 1.809,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.3,
        "after": 0.0,
        "delta": -0.3,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.03,
        "after": 0.0,
        "delta": -0.03,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_OBP",
        "before": 0.267,
        "after": 0.2236,
        "delta": -0.0434,
        "percent_delta": -0.1625,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.424,
        "after": 0.0,
        "delta": -0.424,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.2,
        "after": 0.0,
        "delta": -0.2,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.369,
        "after": 0.2807,
        "delta": -0.0883,
        "percent_delta": -0.2393,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.847,
        "after": 0.0,
        "delta": -0.847,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 1,
      "deboosted_metrics": 10,
      "better_metrics": 2,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.356,
        "after": 1.0,
        "delta": 0.644,
        "percent_delta": 1.809,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.847,
        "after": 0.0,
        "delta": -0.847,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.153-
predicted_3B0.068-
predicted_AB3.203-
predicted_AVG0.232-
predicted_BB0.356-
predicted_H0.300-
predicted_HR0.030-
predicted_OBP0.267-
predicted_R0.424-
predicted_RBI0.200-
predicted_SLG0.369-
predicted_SO0.847-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.141-0.012
predicted_3B0.0980.030
predicted_AB3.2800.077
predicted_AVG0.231-0.001
predicted_BB0.311-0.045
predicted_H0.4980.198
predicted_HBP0.013-
predicted_HR0.0310.001
predicted_OBP0.2730.006
predicted_R0.391-0.033
predicted_RBI0.3170.117
predicted_SLG0.3730.004
predicted_SO0.9050.058
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1410.000
predicted_3B0.0980.000
predicted_AB3.2800.000
predicted_AVG0.150-0.081
predicted_BB0.310-0.001
predicted_H0.492-0.006
predicted_HBP0.0130.000
predicted_HR0.031-0.000
predicted_OBP0.224-0.049
predicted_R0.383-0.008
predicted_RBI0.310-0.006
predicted_SLG0.281-0.092
predicted_SO0.9070.003
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.28), rates preserved: AVG=0.150 HR/AB=0.009

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H0.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=13.0, weight=0.121, BvP AVG=0.154)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
H0.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0001.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.141
predicted_3B0.000-0.098
predicted_AB3.000-0.280
predicted_AVG0.3330.183
predicted_BB0.000-0.310
predicted_H1.0000.508
predicted_HR0.000-0.031
predicted_OBP0.3330.109
predicted_R0.000-0.383
predicted_RBI0.000-0.310
predicted_SLG0.3330.052
predicted_SO1.0000.093
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 59
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0003.0000.0002.0000.0002.0000.0000.0007.0000.16670.16670.38890.16670.00000.11110.00000.3889
last_100.2010-34.0007.0001.0002.0000.0005.0003.0001.00011.0000.20590.22220.35290.20590.00000.14710.02940.3235
season0.6059-189.00048.0009.0004.0002.00029.00025.00021.00050.0000.25400.33020.37570.25400.01060.15340.11110.2646
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1230
predicted_3B0.1400
predicted_AB3.3890
predicted_AVG0.2298
predicted_BB0.2480
predicted_H0.7790
predicted_HBP0.0130
predicted_HR0.0330
predicted_OBP0.2806
predicted_R0.3430
predicted_RBI0.4820
predicted_SLG0.3782
predicted_SO0.9870
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.15300.12300.1406model_form_blend
predicted_3B0.06800.14000.0978model_form_blend
predicted_AB3.20303.38903.2800model_form_blend
predicted_AVG0.23200.22980.2311model_form_blend
predicted_BB0.35600.24800.3113model_form_blend
predicted_H0.30000.77900.4982model_form_blend
predicted_HBP-0.01300.0130form_only
predicted_HR0.03000.03300.0312model_form_blend
predicted_OBP0.26700.28060.2726model_form_blend
predicted_R0.42400.34300.3905model_form_blend
predicted_RBI0.20000.48200.3167model_form_blend
predicted_SLG0.36900.37820.3728model_form_blend
predicted_SO0.84700.98700.9049model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date179
Season rows before report date179
Report year2026
Profile rows used59
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO0
SF0
HBP0
season_avg0.254

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E1
Fielding_Outfield assists1
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B1
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB3
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedCF
gameID20260617_BAL@SEA
game_typefull
mlbID665750
playerID665750
playerNameLeody Taveras
posCF
startedTrue
startingPositionCF
teamBAL
teamID3
game_date2026-06-17
sl_k_percent22.8
sl_bb_percent10.3
sl_woba0.319
sl_xwoba0.297
sl_xba0.234
sl_xslg0.335
sl_sweet_spot_percent33.6
sl_barrel_batted_rate4.0
sl_hard_hit_percent29.5
sl_exit_velocity_avg87.0
sl_launch_angle_avg16.2
sl_whiff_percent24.9
sl_swing_percent47.2
Blaze Alexander (677942) · BATTER · 3B · Team BAL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 153
All-history rows before 20260618: 153
System season_avg: 0.3140
Data season_avg (2026 season-to-date): 0.2872
Diff (system - data): 0.0268
System opponent_avg: 0.4620
System season_avg diverges from 2026 season-to-date by 0.0268. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1760.0000.000Hitting_2B0.1370.000-0.1370.000
predicted_3B0.0200.0000.000Hitting_3B0.0070.000-0.0070.000
predicted_AB3.0004.0003.000Hitting_AB3.0723.0000.9281.000
predicted_AVG0.3180.2500.333Hitting_AVG0.2871.000-0.037-0.750
predicted_BB0.1960.0000.000Hitting_BB0.2031.000-0.203-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0520.000-0.0520.000
predicted_H0.7501.0001.000Hitting_H0.8823.0000.118-2.000
predicted_HR0.0700.0000.000Hitting_HR0.0330.000-0.0330.000
predicted_OBP0.3850.2500.333Hitting_OBP0.3401.000-0.090-0.750
predicted_R0.3731.0000.000Hitting_R0.4121.0000.5880.000
predicted_RBI0.3301.0000.000Hitting_RBI0.3860.0000.6141.000
predicted_SLG0.4660.2500.333Hitting_SLG0.3681.000-0.118-0.750
predicted_SO0.7841.0001.000Hitting_SO0.8760.0000.1241.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics5
Deboosted Metrics6
Better Metrics4
Worse Metrics7
Biggest Boostpredicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)
Biggest Deboostpredicted_BB: 0.1960 -> 0.0000 (deboost -0.1960, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend55050predicted_H: 0.7500 -> 0.9215 (boost 0.1715, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3982 -> 0.3389 (deboost -0.0593, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling82617predicted_SO: 0.7395 -> 1.0000 (boost 0.2605, worse)predicted_RBI: 0.3394 -> 0.0000 (deboost -0.3394, worse)AB rounded to 3 (raw=3.08), rates preserved: AVG=0.296 HR/AB=0.021
5consistency_constraints10101-predicted_R: 0.3840 -> 0.0000 (deboost -0.3840, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2956 -> 0.3330 (boost 0.0374, better)predicted_SLG: 0.4361 -> 0.3330 (deboost -0.1031, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference33030predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.3330 -> 0.4361 (boost 0.1031, better)predicted_AVG: 0.3330 -> 0.2956 (deboost -0.0374, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "677942",
  "player_name": "Blaze Alexander",
  "position": "3B",
  "team": "BAL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.176,
        "predicted_3B": 0.02,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.318,
        "predicted_BB": 0.196,
        "predicted_H": 0.75,
        "predicted_HR": 0.07,
        "predicted_OBP": 0.385,
        "predicted_R": 0.373,
        "predicted_RBI": 0.33,
        "predicted_SLG": 0.466,
        "predicted_SO": 0.784
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2084,
        "predicted_3B": 0.0172,
        "predicted_AB": 3.0811,
        "predicted_AVG": 0.3377,
        "predicted_BB": 0.2025,
        "predicted_H": 0.9215,
        "predicted_HBP": 0.073,
        "predicted_HR": 0.0643,
        "predicted_OBP": 0.3982,
        "predicted_R": 0.3917,
        "predicted_RBI": 0.3462,
        "predicted_SLG": 0.4826,
        "predicted_SO": 0.7374
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.176,
          "after": 0.2084,
          "delta": 0.0324,
          "percent_delta": 0.1841,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.02,
          "after": 0.0172,
          "delta": -0.0028,
          "percent_delta": -0.14,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0811,
          "delta": 0.0811,
          "percent_delta": 0.027,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.318,
          "after": 0.3377,
          "delta": 0.0197,
          "percent_delta": 0.0619,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.196,
          "after": 0.2025,
          "delta": 0.0065,
          "percent_delta": 0.0332,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.75,
          "after": 0.9215,
          "delta": 0.1715,
          "percent_delta": 0.2287,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.07,
          "after": 0.0643,
          "delta": -0.0057,
          "percent_delta": -0.0814,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.385,
          "after": 0.3982,
          "delta": 0.0132,
          "percent_delta": 0.0343,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.373,
          "after": 0.3917,
          "delta": 0.0187,
          "percent_delta": 0.0501,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.33,
          "after": 0.3462,
          "delta": 0.0162,
          "percent_delta": 0.0491,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.466,
          "after": 0.4826,
          "delta": 0.0166,
          "percent_delta": 0.0356,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.784,
          "after": 0.7374,
          "delta": -0.0466,
          "percent_delta": -0.0594,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 5,
        "deboosted_metrics": 0,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.75,
          "after": 0.9215,
          "delta": 0.1715,
          "percent_delta": 0.2287,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 51
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2084,
        "predicted_3B": 0.0172,
        "predicted_AB": 3.0811,
        "predicted_AVG": 0.2956,
        "predicted_BB": 0.2019,
        "predicted_H": 0.9107,
        "predicted_HBP": 0.073,
        "predicted_HR": 0.0634,
        "predicted_OBP": 0.3389,
        "predicted_R": 0.384,
        "predicted_RBI": 0.3394,
        "predicted_SLG": 0.4361,
        "predicted_SO": 0.7395
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2084,
          "after": 0.2084,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0172,
          "after": 0.0172,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0811,
          "after": 3.0811,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.3377,
          "after": 0.2956,
          "delta": -0.0421,
          "percent_delta": -0.1247,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2025,
          "after": 0.2019,
          "delta": -0.0006,
          "percent_delta": -0.003,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9215,
          "after": 0.9107,
          "delta": -0.0108,
          "percent_delta": -0.0117,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.073,
          "after": 0.073,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0643,
          "after": 0.0634,
          "delta": -0.0009,
          "percent_delta": -0.014,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3982,
          "after": 0.3389,
          "delta": -0.0593,
          "percent_delta": -0.1489,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3917,
          "after": 0.384,
          "delta": -0.0077,
          "percent_delta": -0.0197,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3462,
          "after": 0.3394,
          "delta": -0.0068,
          "percent_delta": -0.0196,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4826,
          "after": 0.4361,
          "delta": -0.0465,
          "percent_delta": -0.0964,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7374,
          "after": 0.7395,
          "delta": 0.0021,
          "percent_delta": 0.0028,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3982,
          "after": 0.3389,
          "delta": -0.0593,
          "percent_delta": -0.1489,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.08), rates preserved: AVG=0.296 HR/AB=0.021",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2084,
          "after": 0.0,
          "delta": -0.2084,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0172,
          "after": 0.0,
          "delta": -0.0172,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0811,
          "after": 3.0,
          "delta": -0.0811,
          "percent_delta": -0.0263,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2019,
          "after": 0.0,
          "delta": -0.2019,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9107,
          "after": 1.0,
          "delta": 0.0893,
          "percent_delta": 0.0981,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.073,
          "after": 0.0,
          "delta": -0.073,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0634,
          "after": 0.0,
          "delta": -0.0634,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3394,
          "after": 0.0,
          "delta": -0.3394,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7395,
          "after": 1.0,
          "delta": 0.2605,
          "percent_delta": 0.3523,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 2,
        "deboosted_metrics": 6,
        "better_metrics": 1,
        "worse_metrics": 7,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.7395,
          "after": 1.0,
          "delta": 0.2605,
          "percent_delta": 0.3523,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3394,
          "after": 0.0,
          "delta": -0.3394,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.384,
          "after": 0.0,
          "delta": -0.384,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.384,
          "after": 0.0,
          "delta": -0.384,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2956,
          "after": 0.333,
          "delta": 0.0374,
          "percent_delta": 0.1265,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3389,
          "after": 0.333,
          "delta": -0.0059,
          "percent_delta": -0.0174,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4361,
          "after": 0.333,
          "delta": -0.1031,
          "percent_delta": -0.2364,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2956,
          "after": 0.333,
          "delta": 0.0374,
          "percent_delta": 0.1265,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4361,
          "after": 0.333,
          "delta": -0.1031,
          "percent_delta": -0.2364,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2956,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3389,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4361,
        "predicted_SO": 1.0,
        "predicted_TB": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2956,
          "delta": -0.0374,
          "percent_delta": -0.1124,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3389,
          "delta": 0.0059,
          "percent_delta": 0.0177,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4361,
          "delta": 0.1031,
          "percent_delta": 0.3095,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4361,
          "delta": 0.1031,
          "percent_delta": 0.3095,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2956,
          "delta": -0.0374,
          "percent_delta": -0.1124,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.176,
        "after": 0.0,
        "delta": -0.176,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.02,
        "after": 0.0,
        "delta": -0.02,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.0,
        "after": 4.0,
        "delta": 1.0,
        "percent_delta": 0.3333,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.318,
        "after": 0.2956,
        "delta": -0.0224,
        "percent_delta": -0.0704,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.196,
        "after": 0.0,
        "delta": -0.196,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.75,
        "after": 1.0,
        "delta": 0.25,
        "percent_delta": 0.3333,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.07,
        "after": 0.0,
        "delta": -0.07,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.385,
        "after": 0.3389,
        "delta": -0.0461,
        "percent_delta": -0.1197,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.373,
        "after": 1.0,
        "delta": 0.627,
        "percent_delta": 1.681,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.33,
        "after": 1.0,
        "delta": 0.67,
        "percent_delta": 2.0303,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.466,
        "after": 0.4361,
        "delta": -0.0299,
        "percent_delta": -0.0642,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.784,
        "after": 1.0,
        "delta": 0.216,
        "percent_delta": 0.2755,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 5,
      "deboosted_metrics": 6,
      "better_metrics": 4,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.0,
        "after": 4.0,
        "delta": 1.0,
        "percent_delta": 0.3333,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_BB",
        "before": 0.196,
        "after": 0.0,
        "delta": -0.196,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.176-
predicted_3B0.020-
predicted_AB3.000-
predicted_AVG0.318-
predicted_BB0.196-
predicted_H0.750-
predicted_HR0.070-
predicted_OBP0.385-
predicted_R0.373-
predicted_RBI0.330-
predicted_SLG0.466-
predicted_SO0.784-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2080.032
predicted_3B0.017-0.003
predicted_AB3.0810.081
predicted_AVG0.3380.020
predicted_BB0.2030.007
predicted_H0.9210.171
predicted_HBP0.073-
predicted_HR0.064-0.006
predicted_OBP0.3980.013
predicted_R0.3920.019
predicted_RBI0.3460.016
predicted_SLG0.4830.017
predicted_SO0.737-0.047
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2080.000
predicted_3B0.0170.000
predicted_AB3.0810.000
predicted_AVG0.296-0.042
predicted_BB0.202-0.001
predicted_H0.911-0.011
predicted_HBP0.0730.000
predicted_HR0.063-0.001
predicted_OBP0.339-0.059
predicted_R0.384-0.008
predicted_RBI0.339-0.007
predicted_SLG0.436-0.046
predicted_SO0.7400.002
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.08), rates preserved: AVG=0.296 HR/AB=0.021

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.208
predicted_3B0.000-0.017
predicted_AB3.000-0.081
predicted_AVG0.3330.037
predicted_BB0.000-0.202
predicted_H1.0000.089
predicted_HR0.000-0.063
predicted_OBP0.333-0.006
predicted_R0.000-0.384
predicted_RBI0.000-0.339
predicted_SLG0.333-0.103
predicted_SO1.0000.260
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 51
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0009.0002.0000.0000.0001.0002.0001.0002.0000.52940.55560.64710.52940.00000.05880.05880.1177
last_100.2010-30.00014.0004.0000.0001.0004.0005.0002.0004.0000.46670.52940.70000.46670.03330.13330.06670.1333
season0.6051-153.00048.0009.0001.0002.00019.00019.00010.00040.0000.31370.36530.42480.31370.01310.12420.06540.2614
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2560
predicted_3B0.0130
predicted_AB3.2000
predicted_AVG0.3666
predicted_BB0.2120
predicted_H1.1730
predicted_HBP0.0730
predicted_HR0.0560
predicted_OBP0.4175
predicted_R0.4190
predicted_RBI0.3700
predicted_SLG0.5069
predicted_SO0.6690
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.17600.25600.2084model_form_blend
predicted_3B0.02000.01300.0172model_form_blend
predicted_AB3.00003.20003.0811model_form_blend
predicted_AVG0.31800.36660.3377model_form_blend
predicted_BB0.19600.21200.2025model_form_blend
predicted_H0.75001.17300.9215model_form_blend
predicted_HBP-0.07300.0730form_only
predicted_HR0.07000.05600.0643model_form_blend
predicted_OBP0.38500.41750.3982model_form_blend
predicted_R0.37300.41900.3917model_form_blend
predicted_RBI0.33000.37000.3462model_form_blend
predicted_SLG0.46600.50690.4826model_form_blend
predicted_SO0.78400.66900.7374model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date153
Season rows before report date153
Report year2026
Profile rows used51
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R1
RBI1
BB0
SO1
SF0
HBP0
season_avg0.314

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB1
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG1.0
Hitting_BB1
Hitting_GIDP0
Hitting_H3
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB3
Hitting_battingOrder9
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260617_BAL@SEA
game_typefull
mlbID677942
playerID677942
playerNameBlaze Alexander
pos3B
startedTrue
startingPosition3B
teamBAL
teamID3
game_date2026-06-17
sl_k_percent22.6
sl_bb_percent6.2
sl_woba0.347
sl_xwoba0.359
sl_xba0.313
sl_xslg0.461
sl_sweet_spot_percent43.0
sl_barrel_batted_rate6.6
sl_hard_hit_percent47.1
sl_exit_velocity_avg92.5
sl_launch_angle_avg9.3
sl_whiff_percent27.5
sl_swing_percent56.3
Jackson Holliday (702616) · BATTER · 2B · Team BAL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 43
All-history rows before 20260618: 43
System season_avg: 0.1970
Data season_avg (2026 season-to-date): 0.2044
Diff (system - data): -0.0074
System opponent_avg: 0.2180

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0400.0000.000Hitting_2B0.0230.000-0.0230.000
predicted_3B0.0400.0000.000Hitting_3B0.0230.000-0.0230.000
predicted_AB3.0403.0003.000Hitting_AB3.1863.000-0.1860.000
predicted_AVG0.2280.0000.333Hitting_AVG0.2040.333-0.204-0.333
predicted_BB0.3600.0000.000Hitting_BB0.3951.000-0.395-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.6200.0001.000Hitting_H0.6511.000-0.651-1.000
predicted_HR0.1400.0000.000Hitting_HR0.1631.000-0.163-1.000
predicted_OBP0.2720.2500.333Hitting_OBP0.2800.500-0.030-0.250
predicted_R0.4800.0000.000Hitting_R0.4652.000-0.465-2.000
predicted_RBI0.4200.0000.000Hitting_RBI0.5811.000-0.581-1.000
predicted_SB-0.0000.000BaseRunning_SB0.0930.000-0.0930.000
predicted_SLG0.3840.0000.333Hitting_SLG0.3801.333-0.380-1.333
predicted_SO1.0801.0001.000Hitting_SO1.0701.000-0.0700.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics8
Boosted Metrics0
Deboosted Metrics8
Better Metrics1
Worse Metrics7
Biggest Boost-
Biggest Deboostpredicted_H: 0.6200 -> 0.0000 (deboost -0.6200, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend31212predicted_AB: 3.0400 -> 3.1206 (boost 0.0806, better)predicted_AVG: 0.2280 -> 0.2123 (deboost -0.0157, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot31212predicted_OBP: 0.2656 -> 0.2742 (boost 0.0086, better)predicted_AVG: 0.2123 -> 0.1947 (deboost -0.0176, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling61524predicted_H: 0.6075 -> 1.0000 (boost 0.3925, better)predicted_RBI: 0.4401 -> 0.0000 (deboost -0.4401, worse)AB rounded to 3 (raw=3.12), rates preserved: AVG=0.195 HR/AB=0.048
5consistency_constraints10101-predicted_R: 0.4706 -> 0.0000 (deboost -0.4706, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.1947 -> 0.3330 (boost 0.1383, better)predicted_SLG: 0.3776 -> 0.3330 (deboost -0.0446, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21111predicted_HBP: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.3776 (boost 0.0446, better)predicted_AVG: 0.3330 -> 0.1947 (deboost -0.1383, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "702616",
  "player_name": "Jackson Holliday",
  "position": "2B",
  "team": "BAL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.04,
        "predicted_3B": 0.04,
        "predicted_AB": 3.04,
        "predicted_AVG": 0.228,
        "predicted_BB": 0.36,
        "predicted_H": 0.62,
        "predicted_HR": 0.14,
        "predicted_OBP": 0.272,
        "predicted_R": 0.48,
        "predicted_RBI": 0.42,
        "predicted_SLG": 0.384,
        "predicted_SO": 1.08
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0475,
        "predicted_3B": 0.0392,
        "predicted_AB": 3.1206,
        "predicted_AVG": 0.2123,
        "predicted_BB": 0.3431,
        "predicted_H": 0.6147,
        "predicted_HBP": 0.008,
        "predicted_HR": 0.1505,
        "predicted_OBP": 0.2656,
        "predicted_R": 0.48,
        "predicted_RBI": 0.4489,
        "predicted_SLG": 0.3837,
        "predicted_SO": 1.0924
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.04,
          "after": 0.0475,
          "delta": 0.0075,
          "percent_delta": 0.1875,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.04,
          "after": 0.0392,
          "delta": -0.0008,
          "percent_delta": -0.02,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.04,
          "after": 3.1206,
          "delta": 0.0806,
          "percent_delta": 0.0265,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.228,
          "after": 0.2123,
          "delta": -0.0157,
          "percent_delta": -0.0689,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.36,
          "after": 0.3431,
          "delta": -0.0169,
          "percent_delta": -0.0469,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.62,
          "after": 0.6147,
          "delta": -0.0053,
          "percent_delta": -0.0085,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.14,
          "after": 0.1505,
          "delta": 0.0105,
          "percent_delta": 0.075,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.272,
          "after": 0.2656,
          "delta": -0.0064,
          "percent_delta": -0.0235,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.48,
          "after": 0.48,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.42,
          "after": 0.4489,
          "delta": 0.0289,
          "percent_delta": 0.0688,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.384,
          "after": 0.3837,
          "delta": -0.0003,
          "percent_delta": -0.0008,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.08,
          "after": 1.0924,
          "delta": 0.0124,
          "percent_delta": 0.0115,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.04,
          "after": 3.1206,
          "delta": 0.0806,
          "percent_delta": 0.0265,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.228,
          "after": 0.2123,
          "delta": -0.0157,
          "percent_delta": -0.0689,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 25
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0475,
        "predicted_3B": 0.0392,
        "predicted_AB": 3.1206,
        "predicted_AVG": 0.1947,
        "predicted_BB": 0.3421,
        "predicted_H": 0.6075,
        "predicted_HBP": 0.008,
        "predicted_HR": 0.1483,
        "predicted_OBP": 0.2742,
        "predicted_R": 0.4706,
        "predicted_RBI": 0.4401,
        "predicted_SLG": 0.3776,
        "predicted_SO": 1.0956
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0475,
          "after": 0.0475,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0392,
          "after": 0.0392,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.1206,
          "after": 3.1206,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2123,
          "after": 0.1947,
          "delta": -0.0176,
          "percent_delta": -0.0829,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3431,
          "after": 0.3421,
          "delta": -0.001,
          "percent_delta": -0.0029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6147,
          "after": 0.6075,
          "delta": -0.0072,
          "percent_delta": -0.0117,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.008,
          "after": 0.008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1505,
          "after": 0.1483,
          "delta": -0.0022,
          "percent_delta": -0.0146,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2656,
          "after": 0.2742,
          "delta": 0.0086,
          "percent_delta": 0.0324,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.48,
          "after": 0.4706,
          "delta": -0.0094,
          "percent_delta": -0.0196,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4489,
          "after": 0.4401,
          "delta": -0.0088,
          "percent_delta": -0.0196,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3837,
          "after": 0.3776,
          "delta": -0.0061,
          "percent_delta": -0.0159,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0924,
          "after": 1.0956,
          "delta": 0.0032,
          "percent_delta": 0.0029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.2656,
          "after": 0.2742,
          "delta": 0.0086,
          "percent_delta": 0.0324,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2123,
          "after": 0.1947,
          "delta": -0.0176,
          "percent_delta": -0.0829,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.12), rates preserved: AVG=0.195 HR/AB=0.048",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0475,
          "after": 0.0,
          "delta": -0.0475,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0392,
          "after": 0.0,
          "delta": -0.0392,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.1206,
          "after": 3.0,
          "delta": -0.1206,
          "percent_delta": -0.0386,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3421,
          "after": 0.0,
          "delta": -0.3421,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6075,
          "after": 1.0,
          "delta": 0.3925,
          "percent_delta": 0.6461,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.008,
          "after": 0.0,
          "delta": -0.008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1483,
          "after": 0.0,
          "delta": -0.1483,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4401,
          "after": 0.0,
          "delta": -0.4401,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0956,
          "after": 1.0,
          "delta": -0.0956,
          "percent_delta": -0.0873,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 1,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.6075,
          "after": 1.0,
          "delta": 0.3925,
          "percent_delta": 0.6461,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4401,
          "after": 0.0,
          "delta": -0.4401,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4706,
          "after": 0.0,
          "delta": -0.4706,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4706,
          "after": 0.0,
          "delta": -0.4706,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1947,
          "after": 0.333,
          "delta": 0.1383,
          "percent_delta": 0.7103,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2742,
          "after": 0.333,
          "delta": 0.0588,
          "percent_delta": 0.2144,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3776,
          "after": 0.333,
          "delta": -0.0446,
          "percent_delta": -0.1181,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1947,
          "after": 0.333,
          "delta": 0.1383,
          "percent_delta": 0.7103,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3776,
          "after": 0.333,
          "delta": -0.0446,
          "percent_delta": -0.1181,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 1.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.1947,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2742,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3776,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1947,
          "delta": -0.1383,
          "percent_delta": -0.4154,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2742,
          "delta": -0.0588,
          "percent_delta": -0.1765,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3776,
          "delta": 0.0446,
          "percent_delta": 0.1339,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3776,
          "delta": 0.0446,
          "percent_delta": 0.1339,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1947,
          "delta": -0.1383,
          "percent_delta": -0.4154,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.04,
        "after": 0.0,
        "delta": -0.04,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_3B",
        "before": 0.04,
        "after": 0.0,
        "delta": -0.04,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.04,
        "after": 3.0,
        "delta": -0.04,
        "percent_delta": -0.0132,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AVG",
        "before": 0.228,
        "after": 0.1947,
        "delta": -0.0333,
        "percent_delta": -0.1461,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.36,
        "after": 0.0,
        "delta": -0.36,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.62,
        "after": 0.0,
        "delta": -0.62,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.14,
        "after": 0.0,
        "delta": -0.14,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.272,
        "after": 0.2742,
        "delta": 0.0022,
        "percent_delta": 0.0081,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.48,
        "after": 0.0,
        "delta": -0.48,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.42,
        "after": 0.0,
        "delta": -0.42,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.384,
        "after": 0.3776,
        "delta": -0.0064,
        "percent_delta": -0.0167,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.08,
        "after": 1.0,
        "delta": -0.08,
        "percent_delta": -0.0741,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 8,
      "boosted_metrics": 0,
      "deboosted_metrics": 8,
      "better_metrics": 1,
      "worse_metrics": 7,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.62,
        "after": 0.0,
        "delta": -0.62,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.040-
predicted_3B0.040-
predicted_AB3.040-
predicted_AVG0.228-
predicted_BB0.360-
predicted_H0.620-
predicted_HR0.140-
predicted_OBP0.272-
predicted_R0.480-
predicted_RBI0.420-
predicted_SLG0.384-
predicted_SO1.080-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.0480.007
predicted_3B0.039-0.001
predicted_AB3.1210.081
predicted_AVG0.212-0.016
predicted_BB0.343-0.017
predicted_H0.615-0.005
predicted_HBP0.008-
predicted_HR0.1500.010
predicted_OBP0.266-0.006
predicted_R0.4800.000
predicted_RBI0.4490.029
predicted_SLG0.384-0.000
predicted_SO1.0920.012
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0480.000
predicted_3B0.0390.000
predicted_AB3.1210.000
predicted_AVG0.195-0.018
predicted_BB0.342-0.001
predicted_H0.608-0.007
predicted_HBP0.0080.000
predicted_HR0.148-0.002
predicted_OBP0.2740.009
predicted_R0.471-0.009
predicted_RBI0.440-0.009
predicted_SLG0.378-0.006
predicted_SO1.0960.003
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.12), rates preserved: AVG=0.195 HR/AB=0.048

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.048
predicted_3B0.000-0.039
predicted_AB3.000-0.121
predicted_AVG0.3330.138
predicted_BB0.000-0.342
predicted_H1.0000.392
predicted_HR0.000-0.148
predicted_OBP0.3330.059
predicted_R0.000-0.471
predicted_RBI0.000-0.440
predicted_SLG0.333-0.045
predicted_SO1.000-0.096
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP1.0001.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 25
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-15.0001.0000.0000.0001.0002.0002.0001.0007.0000.06670.11760.26670.06670.06670.13330.06670.4667
last_100.2010-31.0005.0000.0001.0002.0006.0005.0003.00012.0000.16130.22860.41940.16130.06450.19350.09680.3871
season0.6025-76.00015.0001.0001.0004.00012.00012.0009.00027.0000.19740.27590.39470.19740.05260.15790.11840.3553
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0600
predicted_3B0.0380
predicted_AB3.2550
predicted_AVG0.1862
predicted_BB0.3150
predicted_H0.6060
predicted_HBP0.0080
predicted_HR0.1680
predicted_OBP0.2549
predicted_R0.4800
predicted_RBI0.4970
predicted_SLG0.3832
predicted_SO1.1130
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.04000.06000.0475model_form_blend
predicted_3B0.04000.03800.0392model_form_blend
predicted_AB3.04003.25503.1206model_form_blend
predicted_AVG0.22800.18620.2123model_form_blend
predicted_BB0.36000.31500.3431model_form_blend
predicted_H0.62000.60600.6147model_form_blend
predicted_HBP-0.00800.0080form_only
predicted_HR0.14000.16800.1505model_form_blend
predicted_OBP0.27200.25490.2656model_form_blend
predicted_R0.48000.48000.4800model_form_blend
predicted_RBI0.42000.49700.4489model_form_blend
predicted_SLG0.38400.38320.3837model_form_blend
predicted_SO1.08001.11301.0924model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date43
Season rows before report date43
Report year2026
Profile rows used25
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP1
season_avg0.197

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB1
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R2
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB4
Hitting_battingOrder8
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_BAL@SEA
game_typefull
mlbID702616
playerID702616
playerNameJackson Holliday
pos2B
startedTrue
startingPosition2B
teamBAL
teamID3
game_date2026-06-17
sl_k_percent30.3
sl_bb_percent11.2
sl_woba0.294
sl_xwoba0.324
sl_xba0.221
sl_xslg0.424
sl_sweet_spot_percent46.2
sl_barrel_batted_rate15.4
sl_hard_hit_percent46.2
sl_exit_velocity_avg89.6
sl_launch_angle_avg16.8
sl_whiff_percent32.9
sl_swing_percent44.7
Shane Baz (669358) · PITCHER · Starter · Team BAL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 14
All-history rows before 20260618: 14

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB2.0002.0002.000Pitching_BB2.2862.000-0.2860.000
predicted_ER3.0003.0003.000Pitching_ER2.6432.0000.3571.000
predicted_H7.0007.0007.000Pitching_H5.8576.0001.1431.000
predicted_IP6.0006.0006.000Pitching_InningsPitched5.6575.0000.3431.000
predicted_SO2.0002.0002.000Pitching_SO4.7861.000-2.7861.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "669358",
  "player_name": "Shane Baz",
  "position": "Starter",
  "team": "BAL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 3.0,
        "predicted_H": 7.0,
        "predicted_HR": 2.0,
        "predicted_IP": 6.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 3.0,
        "predicted_H": 7.0,
        "predicted_HR": 2.0,
        "predicted_IP": 6.0,
        "predicted_R": 3.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 7.0,
          "after": 7.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 6.0,
          "after": 6.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 3.0,
        "after": 3.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 7.0,
        "after": 7.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 6.0,
        "after": 6.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB2.000-
predicted_ER3.000-
predicted_H7.000-
predicted_HR2.000-
predicted_IP6.000-
predicted_SO2.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 14
Reference playing time: 6.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.45530.2007.00026.00010.00025.0002.0002.05431.17390.22830.84780.32610.81520.0652
last_100.351060.00025.00056.00024.00048.0006.0003.75001.33330.41670.93330.40000.80000.1000
season0.201482.00037.00082.00032.00067.0008.0004.06101.39020.45121.00000.39020.81710.0976
Weighted Prediction From Real Data
MetricValue
predicted_BB2.1860
predicted_ER2.2890
predicted_ERA3.4332
predicted_H5.5530
predicted_HR0.6010
predicted_IP6.0000
predicted_SO5.0630
predicted_WHIP1.2899
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB2.00002.18602.1002model_form_blend
predicted_ER3.00002.28902.6169model_form_blend
predicted_ERA-3.43323.4332form_only
predicted_H7.00005.55306.2204model_form_blend
predicted_HR2.00000.60101.2462model_form_blend
predicted_IP6.00006.00006.0000model_form_blend
predicted_SO2.00005.06303.6503model_form_blend
predicted_WHIP-1.28991.2899form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date14
Season rows before report date14
Report year2026
Profile rows used14
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP6.0
H7
R3
ER3
BB2
SO2
HR2
BF27
Pitches105

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB2
Pitching_Balk0
Pitching_Batters Faced24
Pitching_ER2
Pitching_ERA4.06
Pitching_Flyouts5
Pitching_Groundouts6
Pitching_H6
Pitching_HBP1
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched5.0
Pitching_Pitches103
Pitching_R3
Pitching_SO1
Pitching_Strikes62
Pitching_Wild Pitch0
Pitching_decisionW
Pitching_pitchingOrder1
allPositionsPlayedP
gameID20260612_SD@BAL
game_typefull
mlbID669358
playerID669358
playerNameShane Baz
posP
startedTrue
startingPositionP
teamBAL
teamID3
game_date2026-06-12
sl_k_percent18.9
sl_bb_percent9.0
sl_woba0.331
sl_xwoba0.338
sl_sweet_spot_percent37.2
sl_barrel_batted_rate8.7
sl_hard_hit_percent41.1
sl_whiff_percent21.0
sl_swing_percent47.4
sl_avg_best_speed80.217468968
sl_avg_hyper_speed94.690975139
Rico Garcia (670329) · PITCHER · Middle Reliever · Team BAL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 32
All-history rows before 20260618: 32

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB0.3121.0000.6880.000
predicted_ER0.0000.0000.000Pitching_ER0.1882.000-0.188-2.000
predicted_H1.0001.0001.000Pitching_H0.3751.0000.6250.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.8251.0000.1750.000
predicted_SO0.0000.0000.000Pitching_SO1.0001.000-1.000-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "670329",
  "player_name": "Rico Garcia",
  "position": "Middle Reliever",
  "team": "BAL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER0.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 32
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.1004.0005.0001.0004.0003.0008.30771.38460.92311.15390.23080.92310.6923
last_100.35109.1004.0008.0003.0007.0003.0003.85711.17860.42860.85710.32140.75000.3214
season0.203229.2006.00012.00010.00032.0004.0001.82020.74160.20230.40450.33711.07870.1348
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3200
predicted_ER0.5580
predicted_ERA5.0190
predicted_H0.9340
predicted_HR0.3110
predicted_IP1.0000
predicted_SO0.9140
predicted_WHIP1.2543
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00000.32000.6899model_form_blend
predicted_ER0.00000.55800.2545model_form_blend
predicted_ERA-5.01905.0190form_only
predicted_H1.00000.93400.9699model_form_blend
predicted_HR0.00000.31100.1418model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00000.91400.4168model_form_blend
predicted_WHIP-1.25431.2543form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date32
Season rows before report date32
Report year2026
Profile rows used32
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H1
R0
ER0
BB1
SO0
HR0
BF5
Pitches20

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced5
Pitching_ER2
Pitching_ERA1.82
Pitching_Flyouts1
Pitching_Groundouts1
Pitching_H1
Pitching_HBP0
Pitching_HR1
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches19
Pitching_R2
Pitching_SO1
Pitching_Strikes10
Pitching_Wild Pitch0
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260614_SD@BAL
game_typefull
mlbID670329
playerID670329
playerNameRico Garcia
posP
startedFalse
startingPositionP
teamBAL
teamID3
game_date2026-06-14
sl_k_percent29.4
sl_bb_percent9.2
sl_woba0.211
sl_xwoba0.27
sl_sweet_spot_percent25.4
sl_barrel_batted_rate9.0
sl_hard_hit_percent32.8
sl_whiff_percent36.5
sl_swing_percent49.1
sl_avg_best_speed74.450207647
sl_avg_hyper_speed93.057668955
Ryan Helsley (664854) · PITCHER · Middle Reliever · Team BAL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 13
All-history rows before 20260618: 13

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB3.0003.0003.000Pitching_BB0.5380.0002.4623.000
predicted_ER0.0000.0000.000Pitching_ER0.3852.000-0.385-2.000
predicted_H0.0000.0000.000Pitching_H0.6922.000-0.692-2.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.8621.0000.1380.000
predicted_SO1.0001.0001.000Pitching_SO1.3082.000-0.308-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "664854",
  "player_name": "Ryan Helsley",
  "position": "Middle Reliever",
  "team": "BAL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 3.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 3.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 3.0,
        "after": 3.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB3.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 13
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.1003.0002.0003.0006.0002.0006.23081.15380.69230.46150.69231.38460.4615
last_100.35109.1004.0005.0006.00013.0002.0003.85711.17860.42860.53570.64291.39290.2143
season0.201311.2005.0009.0007.00017.0002.0003.85711.37140.42860.77140.60001.45710.1714
Weighted Prediction From Real Data
MetricValue
predicted_BB0.4560
predicted_ER0.5160
predicted_ERA4.6403
predicted_H0.8400
predicted_HR0.2000
predicted_IP1.0000
predicted_SO1.0850
predicted_WHIP1.2957
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB3.00000.45602.0809model_form_blend
predicted_ER0.00000.51600.1864model_form_blend
predicted_ERA-4.64034.6403form_only
predicted_H0.00000.84000.3035model_form_blend
predicted_HR0.00000.20000.0723model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO1.00001.08501.0307model_form_blend
predicted_WHIP-1.29571.2957form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date13
Season rows before report date13
Report year2026
Profile rows used13
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB3
SO1
HR0
BF6
Pitches25

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced5
Pitching_ER2
Pitching_ERA3.86
Pitching_Flyouts0
Pitching_Groundouts1
Pitching_H2
Pitching_HBP0
Pitching_HR2
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches9
Pitching_R2
Pitching_SO2
Pitching_Strikes9
Pitching_Wild Pitch0
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260617_BAL@SEA
game_typefull
mlbID664854
playerID664854
playerNameRyan Helsley
posP
startedFalse
startingPositionP
teamBAL
teamID3
game_date2026-06-17
sl_k_percent33.3
sl_bb_percent13.7
sl_woba0.306
sl_xwoba0.287
sl_sweet_spot_percent18.5
sl_barrel_batted_rate7.4
sl_hard_hit_percent59.3
sl_whiff_percent40.2
sl_swing_percent45.8
sl_avg_best_speed84.000164615
sl_avg_hyper_speed96.024345
Andrew Kittredge (552640) · PITCHER · Middle Reliever · Team BAL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 19
All-history rows before 20260618: 19

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.2110.000-0.2110.000
predicted_ER0.0000.0000.000Pitching_ER0.5790.000-0.5790.000
predicted_H1.0001.0001.000Pitching_H1.0000.0000.0001.000
predicted_IP0.0000.0000.000Pitching_InningsPitched0.7370.200-0.737-0.200
predicted_SO0.0000.0000.000Pitching_SO0.7890.000-0.7890.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 0.1000 -> 0.0000 (deboost -0.1000, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_IP: 0.1000 -> 0.0000 (deboost -0.1000, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "552640",
  "player_name": "Andrew Kittredge",
  "position": "Middle Reliever",
  "team": "BAL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.1,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 0.1,
          "after": 0.0,
          "delta": -0.1,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 0.1,
          "after": 0.0,
          "delta": -0.1,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP0.100-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 19
Reference playing time: 0.100
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.2002.0004.0000.0002.0001.0003.85710.85710.42860.85710.00000.42860.2143
last_100.35109.0002.0005.0001.0008.0001.0002.00000.66670.22220.55560.11110.88890.1111
season0.201916.10011.00019.0004.00015.0003.0006.06121.40820.67351.16330.24490.91840.1837
Weighted Prediction From Real Data
MetricValue
predicted_BB0.1520
predicted_ER0.2760
predicted_ERA4.1697
predicted_H0.5420
predicted_HR0.0930
predicted_IP0.2000
predicted_SO0.5000
predicted_WHIP1.1654
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.15200.0599model_form_blend
predicted_ER0.00000.27600.1087model_form_blend
predicted_ERA-4.16974.1697form_only
predicted_H1.00000.54200.8197model_form_blend
predicted_HR0.00000.09300.0366model_form_blend
predicted_IP0.10000.20000.1000model_form_blend
predicted_SO0.00000.50000.1969model_form_blend
predicted_WHIP-1.16541.1654form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date19
Season rows before report date19
Report year2026
Profile rows used19
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP0.0
H1
R0
ER0
BB0
SO0
HR0
BF1
Pitches10

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced1
Pitching_ER0
Pitching_ERA6.06
Pitching_Flyouts0
Pitching_Groundouts1
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners2
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.2
Pitching_Pitches2
Pitching_R0
Pitching_SO0
Pitching_Strikes2
Pitching_Wild Pitch0
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260616_BAL@SEA
game_typefull
mlbID552640
playerID552640
playerNameAndrew Kittredge
posP
startedFalse
startingPositionP
teamBAL
teamID3
game_date2026-06-16
sl_k_percent20.3
sl_bb_percent6.8
sl_woba0.329
sl_xwoba0.278
sl_sweet_spot_percent35.2
sl_barrel_batted_rate5.6
sl_hard_hit_percent33.3
sl_whiff_percent23.3
sl_swing_percent53.6
sl_avg_best_speed74.994601481
sl_avg_hyper_speed93.396837547

Home Team: SEA

Home Pitcher Deep Analysis

FieldValue
PitcherBryan Woo
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score0.2610
ESPN Rank175
Movement AvailableTrue
Primary Pitch-
Movement Score0.1559
Avg Velo92.5129
Avg Spin2286.8317
HB Inches0
IVB Inches0
Release Extension0
Pre IP5.2000
Pre ER1
Pre H2
Pre BB2
Pre SO6
Season ERA4.2805
Season WHIP1.0366
Role Avg IP5.8570
Recent Avg IP5.8000
Last Start IP5
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "SEA",
    "games": 81,
    "wins": 42,
    "losses": 39,
    "win_pct": 0.5185,
    "runs_scored": 358.0,
    "runs_allowed": 331.0,
    "run_differential": 27.0,
    "run_differential_per_game": 0.3333,
    "avg_runs_scored": 4.4198,
    "avg_runs_allowed": 4.0864,
    "offense_index": 0.9802,
    "defense_index": 1.1034,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.3,
      "avg_runs_allowed": 5.3,
      "run_differential": -10.0
    },
    "available": true,
    "quality_score": 0.0214
  },
  "opponent": {
    "team": "BAL",
    "games": 84,
    "wins": 40,
    "losses": 44,
    "win_pct": 0.4762,
    "runs_scored": 382.0,
    "runs_allowed": 403.0,
    "run_differential": -21.0,
    "run_differential_per_game": -0.25,
    "avg_runs_scored": 4.5476,
    "avg_runs_allowed": 4.7976,
    "offense_index": 1.0085,
    "defense_index": 0.9399,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.4,
      "avg_runs_allowed": 4.8,
      "run_differential": -4.0
    },
    "available": true,
    "quality_score": -0.0857
  },
  "edges": {
    "quality_edge": 0.1071,
    "offense_edge": -0.0198,
    "opponent_offense_edge": 0.0085,
    "defense_strength": 0.1034,
    "opponent_defense_weakness": 0.0601,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 1.007,
    "run_prevention": 0.9857,
    "strikeout": 1.0025
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "693433",
    "profile": {
      "available": true,
      "pitcher_id": "693433",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 255.0,
        "k_percent": 24.0,
        "bb_percent": 4.6,
        "woba": 0.273,
        "xwoba": 0.286,
        "sweet_spot_percent": 32.3,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 44.4,
        "avg_best_speed": 78.7832,
        "avg_hyper_speed": 94.57,
        "whiff_percent": 24.2,
        "swing_percent": 54.0
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.3934,
        "command_and_miss": 0.2514,
        "regression_edge": -0.3714,
        "xwoba_edge": 0.8286,
        "barrel_edge": 0.0,
        "hard_hit_edge": -0.8714,
        "whiff_edge": -0.2143,
        "bb_edge": 1.15,
        "pitch_design_score": 0.1559
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "693433",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 95,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 95,
          "pitch_usage": 0.0,
          "release_speed": 92.51294588187733,
          "release_spin_rate": 2286.8316876099384,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 95,
            "pitch_usage": 0.0,
            "release_speed": 92.51294588187733,
            "release_spin_rate": 2286.8316876099384,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 92.5129,
          "release_spin_rate": 2286.8317,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": 0.1559,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": 1.1136,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.261,
      "sample_weight": 1.0,
      "run_prevention_factor": 0.9778,
      "strikeout_factor": 1.0,
      "walk_factor": 0.908,
      "homer_factor": 1.01,
      "woba_minus_xwoba": -0.013,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "693433",
        "espn_id": 4629089,
        "player_name": "Bryan Woo",
        "team": "SEA",
        "role": "pitcher",
        "espn_rank": 175,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 175,
          "gp_value": 14.0,
          "gp_rank": 279,
          "gs_value": 14.0,
          "gs_rank": 37,
          "qs_value": 8.0,
          "qs_rank": 15,
          "era_value": 4.2804,
          "era_rank": 54.0,
          "w_value": 5.0,
          "w_rank": 39,
          "l_value": 5.0,
          "l_rank": 36,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 82.0,
          "ip_rank": 30,
          "h_value": 70.0,
          "h_rank": 51,
          "er_value": 39.0,
          "er_rank": 29,
          "hr_value": 9.0,
          "hr_rank": 59,
          "bb_value": 15.0,
          "bb_rank": 191,
          "k_value": 79.0,
          "k_rank": 34,
          "k_per_9_value": 8.6707325,
          "k_per_9_rank": 30,
          "whip_value": 1.0365,
          "whip_rank": 14.0,
          "war_value": 0.57,
          "war_rank": 1.0
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 3.0,
        "factor": 0.9778,
        "adjusted": 3
      },
      "predicted_H": {
        "original": 5.0,
        "factor": 0.9778,
        "adjusted": 5
      },
      "predicted_BB": {
        "original": 1.0,
        "factor": 0.908,
        "adjusted": 1
      },
      "predicted_HR": {
        "original": 1.0,
        "factor": 1.01,
        "adjusted": 1
      },
      "predicted_SO": {
        "original": 6.0,
        "factor": 1.0,
        "adjusted": 6
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 57.0,
    "ER": 33,
    "H": 52,
    "BB": 10,
    "SO": 59,
    "HR": 9,
    "ERA": 5.2105263157894735,
    "WHIP": 1.087719298245614,
    "K9": 9.31578947368421,
    "HR9": 1.4210526315789473,
    "games_pitched": 10,
    "quality_starts": 5,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 1,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-11T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "693433",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 95,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 95,
    "pitch_usage": 0.0,
    "release_speed": 92.51294588187733,
    "release_spin_rate": 2286.8316876099384,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 95,
      "pitch_usage": 0.0,
      "release_speed": 92.51294588187733,
      "release_spin_rate": 2286.8316876099384,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 92.5129,
    "release_spin_rate": 2286.8317,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": 0.1559,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": 1.1136,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "role": "pitcher",
  "player_id": "693433",
  "report_date": "20260618_B",
  "season_year": 2026,
  "rows_used": 14,
  "reference_playing_time": 5.667,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 29.0,
        "ER": 16.0,
        "R": 16.0,
        "H": 27.0,
        "BB": 5.0,
        "SO": 32.0,
        "HR": 3.0,
        "BF": 118.0,
        "Pitches": 439.0
      },
      "per_game": {
        "IP": 5.2,
        "ER": 3.2,
        "R": 3.2,
        "H": 5.4,
        "BB": 1.0,
        "SO": 6.4,
        "HR": 0.6,
        "BF": 23.6,
        "Pitches": 87.8
      },
      "rates": {
        "ERA": 4.9655,
        "WHIP": 1.1034,
        "ER_per_IP": 0.55172,
        "H_per_IP": 0.93103,
        "BB_per_IP": 0.17241,
        "SO_per_IP": 1.10345,
        "HR_per_IP": 0.10345
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 57.0,
        "ER": 33.0,
        "R": 33.0,
        "H": 52.0,
        "BB": 10.0,
        "SO": 59.0,
        "HR": 9.0,
        "BF": 232.0,
        "Pitches": 863.0
      },
      "per_game": {
        "IP": 5.2,
        "ER": 3.3,
        "R": 3.3,
        "H": 5.2,
        "BB": 1.0,
        "SO": 5.9,
        "HR": 0.9,
        "BF": 23.2,
        "Pitches": 86.3
      },
      "rates": {
        "ERA": 5.2105,
        "WHIP": 1.0877,
        "ER_per_IP": 0.57895,
        "H_per_IP": 0.91228,
        "BB_per_IP": 0.17544,
        "SO_per_IP": 1.03509,
        "HR_per_IP": 0.15789
      }
    },
    "season": {
      "games": 14,
      "totals": {
        "IP": 82.0,
        "ER": 39.0,
        "R": 41.0,
        "H": 70.0,
        "BB": 15.0,
        "SO": 79.0,
        "HR": 9.0,
        "BF": 329.0,
        "Pitches": 1208.0
      },
      "per_game": {
        "IP": 6.0,
        "ER": 2.7857,
        "R": 2.9286,
        "H": 5.0,
        "BB": 1.0714,
        "SO": 5.6429,
        "HR": 0.6429,
        "BF": 23.5,
        "Pitches": 86.2857
      },
      "rates": {
        "ERA": 4.2805,
        "WHIP": 1.0366,
        "ER_per_IP": 0.47561,
        "H_per_IP": 0.85366,
        "BB_per_IP": 0.18293,
        "SO_per_IP": 0.96341,
        "HR_per_IP": 0.10976
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 5.2,
    "predicted_ER": 3.053,
    "predicted_H": 5.293,
    "predicted_BB": 1.286,
    "predicted_SO": 5.839,
    "predicted_HR": 0.741,
    "predicted_ERA": 4.8074,
    "predicted_WHIP": 1.151
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.4612,
  "form_weight": 0.5388,
  "form_reliability": 0.7368,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 5.2,
      "form": 5.2,
      "final": 5.2,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 1.0,
      "form": 3.053,
      "final": 2.1062,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 2.0,
      "form": 5.293,
      "final": 3.7743,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 2.0,
      "form": 1.286,
      "final": 1.6153,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 5.0,
      "form": 5.839,
      "final": 5.4521,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.741,
      "final": 0.3992,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.8074,
      "final": 4.8074,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.151,
      "final": 1.151,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherAndrés Muñoz
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.0672
ESPN Rank673
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1.1000
Pre ER0
Pre H0
Pre BB0
Pre SO0
Season ERA4.9737
Season WHIP1.3421
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "SEA",
    "games": 81,
    "wins": 42,
    "losses": 39,
    "win_pct": 0.5185,
    "runs_scored": 358.0,
    "runs_allowed": 331.0,
    "run_differential": 27.0,
    "run_differential_per_game": 0.3333,
    "avg_runs_scored": 4.4198,
    "avg_runs_allowed": 4.0864,
    "offense_index": 0.9802,
    "defense_index": 1.1034,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.3,
      "avg_runs_allowed": 5.3,
      "run_differential": -10.0
    },
    "available": true,
    "quality_score": 0.0214
  },
  "opponent": {
    "team": "BAL",
    "games": 84,
    "wins": 40,
    "losses": 44,
    "win_pct": 0.4762,
    "runs_scored": 382.0,
    "runs_allowed": 403.0,
    "run_differential": -21.0,
    "run_differential_per_game": -0.25,
    "avg_runs_scored": 4.5476,
    "avg_runs_allowed": 4.7976,
    "offense_index": 1.0085,
    "defense_index": 0.9399,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.4,
      "avg_runs_allowed": 4.8,
      "run_differential": -4.0
    },
    "available": true,
    "quality_score": -0.0857
  },
  "edges": {
    "quality_edge": 0.1071,
    "offense_edge": -0.0198,
    "opponent_offense_edge": 0.0085,
    "defense_strength": 0.1034,
    "opponent_defense_weakness": 0.0601,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 1.007,
    "run_prevention": 0.9857,
    "strikeout": 1.0025
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "662253",
    "profile": {
      "available": true,
      "pitcher_id": "662253",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 89.0,
        "k_percent": 33.3,
        "bb_percent": 9.6,
        "woba": 0.321,
        "xwoba": 0.327,
        "sweet_spot_percent": 34.4,
        "barrel_batted_rate": 10.9,
        "hard_hit_percent": 45.3,
        "avg_best_speed": 75.0031,
        "avg_hyper_speed": 94.7788,
        "whiff_percent": 40.8,
        "swing_percent": 46.5
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.3662,
        "command_and_miss": 1.4293,
        "regression_edge": -0.1714,
        "xwoba_edge": -0.3429,
        "barrel_edge": -0.8,
        "hard_hit_edge": -1.0,
        "whiff_edge": 2.1571,
        "bb_edge": -0.1,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "662253",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.0672,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9943,
      "strikeout_factor": 1.0666,
      "walk_factor": 1.0036,
      "homer_factor": 1.0514,
      "woba_minus_xwoba": -0.006,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "662253",
        "espn_id": 40939,
        "player_name": "Andres Munoz",
        "team": "SEA",
        "role": "pitcher",
        "espn_rank": 673,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 673,
          "gp_value": 28.0,
          "gp_rank": 95,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 5.6842,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 4.0,
          "l_rank": 62,
          "sv_value": 11.0,
          "sv_rank": 14,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 25.1,
          "ip_rank": 320,
          "h_value": 25.0,
          "h_rank": 266,
          "er_value": 16.0,
          "er_rank": 197,
          "hr_value": 4.0,
          "hr_rank": 199,
          "bb_value": 11.0,
          "bb_rank": 272,
          "k_value": 38.0,
          "k_rank": 170,
          "k_per_9_value": 13.5,
          "k_per_9_rank": 14,
          "whip_value": 1.421,
          "whip_rank": null,
          "war_value": -0.65,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 1.0,
        "factor": 0.9974,
        "adjusted": 1
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9974,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0016,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0231,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.03,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 8.1,
    "ER": 4,
    "H": 8,
    "BB": 3,
    "SO": 9,
    "HR": 1,
    "ERA": 4.32,
    "WHIP": 1.3200000000000003,
    "K9": 9.72,
    "HR9": 1.08,
    "games_pitched": 9,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "662253",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.031,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5015,
    "prior_weight": 0.4985
  },
  "role": "pitcher",
  "player_id": "662253",
  "report_date": "20260618_B",
  "season_year": 2026,
  "rows_used": 27,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.2,
        "ER": 3.0,
        "R": 3.0,
        "H": 4.0,
        "BB": 3.0,
        "SO": 5.0,
        "HR": 0.0,
        "BF": 23.0,
        "Pitches": 93.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.6,
        "R": 0.6,
        "H": 0.8,
        "BB": 0.6,
        "SO": 1.0,
        "HR": 0.0,
        "BF": 4.6,
        "Pitches": 18.6
      },
      "rates": {
        "ERA": 5.7857,
        "WHIP": 1.5,
        "ER_per_IP": 0.64286,
        "H_per_IP": 0.85714,
        "BB_per_IP": 0.64286,
        "SO_per_IP": 1.07143,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.1,
        "ER": 4.0,
        "R": 4.0,
        "H": 9.0,
        "BB": 3.0,
        "SO": 12.0,
        "HR": 1.0,
        "BF": 42.0,
        "Pitches": 163.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4,
        "R": 0.4,
        "H": 0.9,
        "BB": 0.3,
        "SO": 1.2,
        "HR": 0.1,
        "BF": 4.2,
        "Pitches": 16.3
      },
      "rates": {
        "ERA": 3.8571,
        "WHIP": 1.2857,
        "ER_per_IP": 0.42857,
        "H_per_IP": 0.96429,
        "BB_per_IP": 0.32143,
        "SO_per_IP": 1.28571,
        "HR_per_IP": 0.10714
      }
    },
    "season": {
      "games": 27,
      "totals": {
        "IP": 25.1,
        "ER": 14.0,
        "R": 15.0,
        "H": 24.0,
        "BB": 10.0,
        "SO": 38.0,
        "HR": 4.0,
        "BF": 112.0,
        "Pitches": 449.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.5185,
        "R": 0.5556,
        "H": 0.8889,
        "BB": 0.3704,
        "SO": 1.4074,
        "HR": 0.1481,
        "BF": 4.1481,
        "Pitches": 16.6296
      },
      "rates": {
        "ERA": 4.9737,
        "WHIP": 1.3421,
        "ER_per_IP": 0.55263,
        "H_per_IP": 0.94737,
        "BB_per_IP": 0.39474,
        "SO_per_IP": 1.5,
        "HR_per_IP": 0.15789
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.525,
    "predicted_H": 0.943,
    "predicted_BB": 0.422,
    "predicted_SO": 1.085,
    "predicted_HR": 0.107,
    "predicted_ERA": 4.7289,
    "predicted_WHIP": 1.3654
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5606,
  "form_weight": 0.4394,
  "form_reliability": 0.5015,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.031,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5015,
    "prior_weight": 0.4985
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.525,
      "final": 0.2307,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.943,
      "final": 0.4143,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.422,
      "final": 0.1854,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 1.085,
      "final": 0.4767,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.107,
      "final": 0.047,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.7289,
      "final": 4.7289,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.3654,
      "final": 1.3654,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherEduard Bazardo
RoleMiddle Reliever
Projection Source-
Savant Quality Score-0.1490
ESPN Rank142
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1.1000
Pre ER1
Pre H1
Pre BB2
Pre SO0
Season ERA2.2268
Season WHIP1.3299
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "SEA",
    "games": 81,
    "wins": 42,
    "losses": 39,
    "win_pct": 0.5185,
    "runs_scored": 358.0,
    "runs_allowed": 331.0,
    "run_differential": 27.0,
    "run_differential_per_game": 0.3333,
    "avg_runs_scored": 4.4198,
    "avg_runs_allowed": 4.0864,
    "offense_index": 0.9802,
    "defense_index": 1.1034,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.3,
      "avg_runs_allowed": 5.3,
      "run_differential": -10.0
    },
    "available": true,
    "quality_score": 0.0214
  },
  "opponent": {
    "team": "BAL",
    "games": 84,
    "wins": 40,
    "losses": 44,
    "win_pct": 0.4762,
    "runs_scored": 382.0,
    "runs_allowed": 403.0,
    "run_differential": -21.0,
    "run_differential_per_game": -0.25,
    "avg_runs_scored": 4.5476,
    "avg_runs_allowed": 4.7976,
    "offense_index": 1.0085,
    "defense_index": 0.9399,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.4,
      "avg_runs_allowed": 4.8,
      "run_differential": -4.0
    },
    "available": true,
    "quality_score": -0.0857
  },
  "edges": {
    "quality_edge": 0.1071,
    "offense_edge": -0.0198,
    "opponent_offense_edge": 0.0085,
    "defense_strength": 0.1034,
    "opponent_defense_weakness": 0.0601,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 1.007,
    "run_prevention": 0.9857,
    "strikeout": 1.0025
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "660825",
    "profile": {
      "available": true,
      "pitcher_id": "660825",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 95.0,
        "k_percent": 20.7,
        "bb_percent": 8.1,
        "woba": 0.313,
        "xwoba": 0.328,
        "sweet_spot_percent": 36.8,
        "barrel_batted_rate": 8.4,
        "hard_hit_percent": 41.1,
        "avg_best_speed": 81.7681,
        "avg_hyper_speed": 94.6146,
        "whiff_percent": 21.4,
        "swing_percent": 44.6
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.3865,
        "command_and_miss": -0.2757,
        "regression_edge": -0.4286,
        "xwoba_edge": -0.3714,
        "barrel_edge": -0.2444,
        "hard_hit_edge": -0.4,
        "whiff_edge": -0.6143,
        "bb_edge": 0.275,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "660825",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": -0.149,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0127,
      "strikeout_factor": 0.9843,
      "walk_factor": 0.9901,
      "homer_factor": 1.021,
      "woba_minus_xwoba": -0.015,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "660825",
        "espn_id": 41939,
        "player_name": "Eduard Bazardo",
        "team": "SEA",
        "role": "pitcher",
        "espn_rank": 142,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 142,
          "gp_value": 34.0,
          "gp_rank": 13,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.2268,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 2.0,
          "l_rank": 185,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 13.0,
          "hld_rank": 7,
          "ip_value": 32.1,
          "ip_rank": 217,
          "h_value": 32.0,
          "h_rank": 193,
          "er_value": 8.0,
          "er_rank": 396,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 11.0,
          "bb_rank": 272,
          "k_value": 28.0,
          "k_rank": 268,
          "k_per_9_value": 7.7938147,
          "k_per_9_rank": 33,
          "whip_value": 1.3298,
          "whip_rank": null,
          "war_value": 0.73,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 1.0057,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 1.0057,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9955,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0094,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 0.9929,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.1,
    "ER": 2,
    "H": 10,
    "BB": 2,
    "SO": 9,
    "HR": 0,
    "ERA": 1.7419354838709677,
    "WHIP": 1.161290322580645,
    "K9": 7.838709677419354,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 1,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "660825",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.421,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5622,
    "prior_weight": 0.4378
  },
  "role": "pitcher",
  "player_id": "660825",
  "report_date": "20260618_B",
  "season_year": 2026,
  "rows_used": 34,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.1,
        "ER": 1.0,
        "R": 1.0,
        "H": 4.0,
        "BB": 1.0,
        "SO": 3.0,
        "HR": 0.0,
        "BF": 17.0,
        "Pitches": 64.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.8,
        "BB": 0.2,
        "SO": 0.6,
        "HR": 0.0,
        "BF": 3.4,
        "Pitches": 12.8
      },
      "rates": {
        "ERA": 2.0769,
        "WHIP": 1.1538,
        "ER_per_IP": 0.23077,
        "H_per_IP": 0.92308,
        "BB_per_IP": 0.23077,
        "SO_per_IP": 0.69231,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.1,
        "ER": 2.0,
        "R": 2.0,
        "H": 10.0,
        "BB": 2.0,
        "SO": 9.0,
        "HR": 0.0,
        "BF": 40.0,
        "Pitches": 159.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 1.0,
        "BB": 0.2,
        "SO": 0.9,
        "HR": 0.0,
        "BF": 4.0,
        "Pitches": 15.9
      },
      "rates": {
        "ERA": 1.7419,
        "WHIP": 1.1613,
        "ER_per_IP": 0.19355,
        "H_per_IP": 0.96774,
        "BB_per_IP": 0.19355,
        "SO_per_IP": 0.87097,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 34,
      "totals": {
        "IP": 32.1,
        "ER": 8.0,
        "R": 10.0,
        "H": 32.0,
        "BB": 11.0,
        "SO": 28.0,
        "HR": 2.0,
        "BF": 135.0,
        "Pitches": 525.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2353,
        "R": 0.2941,
        "H": 0.9412,
        "BB": 0.3235,
        "SO": 0.8235,
        "HR": 0.0588,
        "BF": 3.9706,
        "Pitches": 15.4412
      },
      "rates": {
        "ERA": 2.2268,
        "WHIP": 1.3299,
        "ER_per_IP": 0.24742,
        "H_per_IP": 0.98969,
        "BB_per_IP": 0.34021,
        "SO_per_IP": 0.86598,
        "HR_per_IP": 0.06186
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.344,
    "predicted_H": 0.962,
    "predicted_BB": 0.294,
    "predicted_SO": 0.854,
    "predicted_HR": 0.071,
    "predicted_ERA": 3.0923,
    "predicted_WHIP": 1.2554
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.535,
  "form_weight": 0.465,
  "form_reliability": 0.5622,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.421,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5622,
    "prior_weight": 0.4378
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 1.0,
      "form": 0.344,
      "final": 0.6949,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.962,
      "final": 0.9823,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 2.0,
      "form": 0.294,
      "final": 1.2067,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 0.854,
      "final": 0.3971,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.071,
      "final": 0.033,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.0923,
      "final": 3.0923,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2554,
      "final": 1.2554,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherJosé A. Ferrer
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.2408
ESPN Rank180
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP0.2000
Pre ER0
Pre H0
Pre BB1
Pre SO1
Season ERA2.8723
Season WHIP1.3723
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "SEA",
    "games": 81,
    "wins": 42,
    "losses": 39,
    "win_pct": 0.5185,
    "runs_scored": 358.0,
    "runs_allowed": 331.0,
    "run_differential": 27.0,
    "run_differential_per_game": 0.3333,
    "avg_runs_scored": 4.4198,
    "avg_runs_allowed": 4.0864,
    "offense_index": 0.9802,
    "defense_index": 1.1034,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.3,
      "avg_runs_allowed": 5.3,
      "run_differential": -10.0
    },
    "available": true,
    "quality_score": 0.0214
  },
  "opponent": {
    "team": "BAL",
    "games": 84,
    "wins": 40,
    "losses": 44,
    "win_pct": 0.4762,
    "runs_scored": 382.0,
    "runs_allowed": 403.0,
    "run_differential": -21.0,
    "run_differential_per_game": -0.25,
    "avg_runs_scored": 4.5476,
    "avg_runs_allowed": 4.7976,
    "offense_index": 1.0085,
    "defense_index": 0.9399,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.4,
      "avg_runs_allowed": 4.8,
      "run_differential": -4.0
    },
    "available": true,
    "quality_score": -0.0857
  },
  "edges": {
    "quality_edge": 0.1071,
    "offense_edge": -0.0198,
    "opponent_offense_edge": 0.0085,
    "defense_strength": 0.1034,
    "opponent_defense_weakness": 0.0601,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 1.007,
    "run_prevention": 0.9857,
    "strikeout": 1.0025
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "678606",
    "profile": {
      "available": true,
      "pitcher_id": "678606",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 102.0,
        "k_percent": 19.3,
        "bb_percent": 5.7,
        "woba": 0.323,
        "xwoba": 0.269,
        "sweet_spot_percent": 28.4,
        "barrel_batted_rate": 3.9,
        "hard_hit_percent": 36.3,
        "avg_best_speed": 73.6556,
        "avg_hyper_speed": 93.2911,
        "whiff_percent": 21.2,
        "swing_percent": 52.8
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.7986,
        "command_and_miss": -0.2557,
        "regression_edge": 1.5429,
        "xwoba_edge": 1.3143,
        "barrel_edge": 0.7556,
        "hard_hit_edge": 0.2857,
        "whiff_edge": -0.6429,
        "bb_edge": 0.875,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "678606",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.2408,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9795,
      "strikeout_factor": 0.9802,
      "walk_factor": 0.9685,
      "homer_factor": 0.9499,
      "woba_minus_xwoba": 0.054,
      "regression_flag": "positive_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "678606",
        "espn_id": 5119607,
        "player_name": "Jose Ferrer",
        "team": "SEA",
        "role": "pitcher",
        "espn_rank": 180,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 180,
          "gp_value": 35.0,
          "gp_rank": 9,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.8723,
          "era_rank": null,
          "w_value": 1.0,
          "w_rank": 287,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 3.0,
          "sv_rank": 45,
          "hld_value": 8.0,
          "hld_rank": 41,
          "ip_value": 31.1,
          "ip_rank": 229,
          "h_value": 36.0,
          "h_rank": 166,
          "er_value": 10.0,
          "er_rank": 324,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 8.0,
          "bb_rank": 360,
          "k_value": 27.0,
          "k_rank": 277,
          "k_per_9_value": 7.755319,
          "k_per_9_rank": 32,
          "whip_value": 1.4042,
          "whip_rank": null,
          "war_value": 0.54,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9908,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9908,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9858,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9775,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 0.9911,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 7.2,
    "ER": 5,
    "H": 9,
    "BB": 5,
    "SO": 5,
    "HR": 1,
    "ERA": 5.869565217391305,
    "WHIP": 1.8260869565217392,
    "K9": 5.869565217391305,
    "HR9": 1.173913043478261,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": true
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-14T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "678606",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.222,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5545,
    "prior_weight": 0.4455
  },
  "role": "pitcher",
  "player_id": "678606",
  "report_date": "20260618_B",
  "season_year": 2026,
  "rows_used": 34,
  "reference_playing_time": 0.667,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 3.2,
        "ER": 5.0,
        "R": 5.0,
        "H": 6.0,
        "BB": 5.0,
        "SO": 3.0,
        "HR": 1.0,
        "BF": 23.0,
        "Pitches": 95.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 1.0,
        "R": 1.0,
        "H": 1.2,
        "BB": 1.0,
        "SO": 0.6,
        "HR": 0.2,
        "BF": 4.6,
        "Pitches": 19.0
      },
      "rates": {
        "ERA": 12.2727,
        "WHIP": 3.0,
        "ER_per_IP": 1.36364,
        "H_per_IP": 1.63636,
        "BB_per_IP": 1.36364,
        "SO_per_IP": 0.81818,
        "HR_per_IP": 0.27273
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 7.2,
        "ER": 5.0,
        "R": 5.0,
        "H": 9.0,
        "BB": 5.0,
        "SO": 5.0,
        "HR": 1.0,
        "BF": 37.0,
        "Pitches": 151.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 0.5,
        "R": 0.5,
        "H": 0.9,
        "BB": 0.5,
        "SO": 0.5,
        "HR": 0.1,
        "BF": 3.7,
        "Pitches": 15.1
      },
      "rates": {
        "ERA": 5.8696,
        "WHIP": 1.8261,
        "ER_per_IP": 0.65217,
        "H_per_IP": 1.17391,
        "BB_per_IP": 0.65217,
        "SO_per_IP": 0.65217,
        "HR_per_IP": 0.13043
      }
    },
    "season": {
      "games": 34,
      "totals": {
        "IP": 31.1,
        "ER": 10.0,
        "R": 11.0,
        "H": 35.0,
        "BB": 8.0,
        "SO": 27.0,
        "HR": 2.0,
        "BF": 139.0,
        "Pitches": 514.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2941,
        "R": 0.3235,
        "H": 1.0294,
        "BB": 0.2353,
        "SO": 0.7941,
        "HR": 0.0588,
        "BF": 4.0882,
        "Pitches": 15.1176
      },
      "rates": {
        "ERA": 2.8723,
        "WHIP": 1.3723,
        "ER_per_IP": 0.31915,
        "H_per_IP": 1.11702,
        "BB_per_IP": 0.25532,
        "SO_per_IP": 0.8617,
        "HR_per_IP": 0.06383
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 0.2,
    "predicted_ER": 0.51,
    "predicted_H": 0.84,
    "predicted_BB": 0.462,
    "predicted_SO": 0.594,
    "predicted_HR": 0.116,
    "predicted_ERA": 6.5284,
    "predicted_WHIP": 1.8509
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5382,
  "form_weight": 0.4618,
  "form_reliability": 0.5545,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.222,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5545,
    "prior_weight": 0.4455
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 0.2,
      "form": 0.2,
      "final": 0.2,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.51,
      "final": 0.2355,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.84,
      "final": 0.3879,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 0.462,
      "final": 0.7516,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 2.0,
      "form": 0.594,
      "final": 1.3507,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.116,
      "final": 0.0536,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 6.5284,
      "final": 6.5284,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.8509,
      "final": 1.8509,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Dominic Canzone (686527) · BATTER · RF · Team SEA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 145
All-history rows before 20260618: 145
System season_avg: 0.2930
Data season_avg (2026 season-to-date): 0.2796
Diff (system - data): 0.0134
System opponent_avg: 0.3890

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1880.0000.000Hitting_2B0.2480.000-0.2480.000
predicted_3B0.0160.0000.000Hitting_3B0.0070.000-0.0070.000
predicted_AB2.6904.0003.000Hitting_AB2.9103.0001.0901.000
predicted_AVG0.2980.5000.333Hitting_AVG0.2800.6670.220-0.167
predicted_BB0.2340.0000.000Hitting_BB0.2901.000-0.290-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0140.000-0.0140.000
predicted_H0.8002.0001.000Hitting_H0.8142.0001.1860.000
predicted_HR0.1901.0000.000Hitting_HR0.1861.0000.8140.000
predicted_OBP0.3800.5000.333Hitting_OBP0.3480.7500.152-0.250
predicted_R0.3911.0000.000Hitting_R0.4761.0000.5240.000
predicted_RBI0.5302.0001.000Hitting_RBI0.6412.0001.3590.000
predicted_SLG0.5711.2500.333Hitting_SLG0.5621.6670.688-0.417
predicted_SO0.5620.0001.000Hitting_SO0.6691.000-0.669-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics10
Boosted Metrics7
Deboosted Metrics3
Better Metrics8
Worse Metrics2
Biggest Boostpredicted_RBI: 0.5300 -> 2.0000 (boost 1.4700, better)
Biggest Deboostpredicted_SO: 0.5620 -> 0.0000 (deboost -0.5620, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend55050predicted_AB: 2.6900 -> 2.7760 (boost 0.0860, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot21111predicted_SLG: 0.6087 -> 0.6261 (boost 0.0174, better)predicted_OBP: 0.3921 -> 0.3764 (deboost -0.0157, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling84435predicted_SO: 0.5267 -> 1.0000 (boost 0.4733, worse)predicted_BB: 0.2757 -> 0.0000 (deboost -0.2757, worse)AB rounded to 3 (raw=2.78), rates preserved: AVG=0.314 HR/AB=0.075
5consistency_constraints10101-predicted_R: 0.4258 -> 0.0000 (deboost -0.4258, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.3145 -> 0.3330 (boost 0.0185, better)predicted_SLG: 0.6261 -> 0.3330 (deboost -0.2931, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference65160predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.3330 -> 0.6261 (boost 0.2931, better)predicted_AVG: 0.3330 -> 0.3145 (deboost -0.0185, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "686527",
  "player_name": "Dominic Canzone",
  "position": "RF",
  "team": "SEA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.188,
        "predicted_3B": 0.016,
        "predicted_AB": 2.69,
        "predicted_AVG": 0.298,
        "predicted_BB": 0.234,
        "predicted_H": 0.8,
        "predicted_HR": 0.19,
        "predicted_OBP": 0.38,
        "predicted_R": 0.391,
        "predicted_RBI": 0.53,
        "predicted_SLG": 0.571,
        "predicted_SO": 0.562
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1704,
        "predicted_3B": 0.0344,
        "predicted_AB": 2.776,
        "predicted_AVG": 0.312,
        "predicted_BB": 0.275,
        "predicted_H": 0.8668,
        "predicted_HBP": 0.081,
        "predicted_HR": 0.2068,
        "predicted_OBP": 0.3921,
        "predicted_R": 0.4205,
        "predicted_RBI": 0.5591,
        "predicted_SLG": 0.6087,
        "predicted_SO": 0.528
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.188,
          "after": 0.1704,
          "delta": -0.0176,
          "percent_delta": -0.0936,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.016,
          "after": 0.0344,
          "delta": 0.0184,
          "percent_delta": 1.15,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.69,
          "after": 2.776,
          "delta": 0.086,
          "percent_delta": 0.032,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.298,
          "after": 0.312,
          "delta": 0.014,
          "percent_delta": 0.047,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.234,
          "after": 0.275,
          "delta": 0.041,
          "percent_delta": 0.1752,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8,
          "after": 0.8668,
          "delta": 0.0668,
          "percent_delta": 0.0835,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.19,
          "after": 0.2068,
          "delta": 0.0168,
          "percent_delta": 0.0884,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.38,
          "after": 0.3921,
          "delta": 0.0121,
          "percent_delta": 0.0318,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.391,
          "after": 0.4205,
          "delta": 0.0295,
          "percent_delta": 0.0754,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.53,
          "after": 0.5591,
          "delta": 0.0291,
          "percent_delta": 0.0549,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.571,
          "after": 0.6087,
          "delta": 0.0377,
          "percent_delta": 0.066,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.562,
          "after": 0.528,
          "delta": -0.034,
          "percent_delta": -0.0605,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 5,
        "deboosted_metrics": 0,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.69,
          "after": 2.776,
          "delta": 0.086,
          "percent_delta": 0.032,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 64
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1704,
        "predicted_3B": 0.0344,
        "predicted_AB": 2.776,
        "predicted_AVG": 0.3145,
        "predicted_BB": 0.2757,
        "predicted_H": 0.873,
        "predicted_HBP": 0.081,
        "predicted_HR": 0.2087,
        "predicted_OBP": 0.3764,
        "predicted_R": 0.4258,
        "predicted_RBI": 0.5661,
        "predicted_SLG": 0.6261,
        "predicted_SO": 0.5267
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1704,
          "after": 0.1704,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0344,
          "after": 0.0344,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.776,
          "after": 2.776,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.312,
          "after": 0.3145,
          "delta": 0.0025,
          "percent_delta": 0.008,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.275,
          "after": 0.2757,
          "delta": 0.0007,
          "percent_delta": 0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8668,
          "after": 0.873,
          "delta": 0.0062,
          "percent_delta": 0.0072,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.081,
          "after": 0.081,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2068,
          "after": 0.2087,
          "delta": 0.0019,
          "percent_delta": 0.0092,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3921,
          "after": 0.3764,
          "delta": -0.0157,
          "percent_delta": -0.04,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4205,
          "after": 0.4258,
          "delta": 0.0053,
          "percent_delta": 0.0126,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5591,
          "after": 0.5661,
          "delta": 0.007,
          "percent_delta": 0.0125,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.6087,
          "after": 0.6261,
          "delta": 0.0174,
          "percent_delta": 0.0286,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.528,
          "after": 0.5267,
          "delta": -0.0013,
          "percent_delta": -0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.6087,
          "after": 0.6261,
          "delta": 0.0174,
          "percent_delta": 0.0286,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3921,
          "after": 0.3764,
          "delta": -0.0157,
          "percent_delta": -0.04,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.78), rates preserved: AVG=0.314 HR/AB=0.075",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1704,
          "after": 0.0,
          "delta": -0.1704,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0344,
          "after": 0.0,
          "delta": -0.0344,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.776,
          "after": 3.0,
          "delta": 0.224,
          "percent_delta": 0.0807,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2757,
          "after": 0.0,
          "delta": -0.2757,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.873,
          "after": 1.0,
          "delta": 0.127,
          "percent_delta": 0.1455,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.081,
          "after": 0.0,
          "delta": -0.081,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.2087,
          "after": 0.0,
          "delta": -0.2087,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5661,
          "after": 1.0,
          "delta": 0.4339,
          "percent_delta": 0.7665,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5267,
          "after": 1.0,
          "delta": 0.4733,
          "percent_delta": 0.8986,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 4,
        "deboosted_metrics": 4,
        "better_metrics": 3,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.5267,
          "after": 1.0,
          "delta": 0.4733,
          "percent_delta": 0.8986,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.2757,
          "after": 0.0,
          "delta": -0.2757,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4258,
          "after": 0.0,
          "delta": -0.4258,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4258,
          "after": 0.0,
          "delta": -0.4258,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.3145,
          "after": 0.333,
          "delta": 0.0185,
          "percent_delta": 0.0588,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3764,
          "after": 0.333,
          "delta": -0.0434,
          "percent_delta": -0.1153,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.6261,
          "after": 0.333,
          "delta": -0.2931,
          "percent_delta": -0.4681,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.3145,
          "after": 0.333,
          "delta": 0.0185,
          "percent_delta": 0.0588,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.6261,
          "after": 0.333,
          "delta": -0.2931,
          "percent_delta": -0.4681,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_R": 1.0,
        "predicted_RBI": 2.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 5,
        "deboosted_metrics": 1,
        "better_metrics": 6,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.3145,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_OBP": 0.3764,
        "predicted_R": 1.0,
        "predicted_RBI": 2.0,
        "predicted_RF": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.6261,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.3145,
          "delta": -0.0185,
          "percent_delta": -0.0557,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3764,
          "delta": 0.0434,
          "percent_delta": 0.1303,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.6261,
          "delta": 0.2931,
          "percent_delta": 0.8803,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.6261,
          "delta": 0.2931,
          "percent_delta": 0.8803,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.3145,
          "delta": -0.0185,
          "percent_delta": -0.0557,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.188,
        "after": 0.0,
        "delta": -0.188,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.016,
        "after": 0.0,
        "delta": -0.016,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.69,
        "after": 4.0,
        "delta": 1.31,
        "percent_delta": 0.487,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.298,
        "after": 0.3145,
        "delta": 0.0165,
        "percent_delta": 0.0554,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.234,
        "after": 0.0,
        "delta": -0.234,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.8,
        "after": 2.0,
        "delta": 1.2,
        "percent_delta": 1.5,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.19,
        "after": 1.0,
        "delta": 0.81,
        "percent_delta": 4.2632,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.38,
        "after": 0.3764,
        "delta": -0.0036,
        "percent_delta": -0.0095,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.391,
        "after": 1.0,
        "delta": 0.609,
        "percent_delta": 1.5575,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.53,
        "after": 2.0,
        "delta": 1.47,
        "percent_delta": 2.7736,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.571,
        "after": 0.6261,
        "delta": 0.0551,
        "percent_delta": 0.0965,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.562,
        "after": 0.0,
        "delta": -0.562,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 7,
      "deboosted_metrics": 3,
      "better_metrics": 8,
      "worse_metrics": 2,
      "biggest_boost": {
        "metric": "predicted_RBI",
        "before": 0.53,
        "after": 2.0,
        "delta": 1.47,
        "percent_delta": 2.7736,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.562,
        "after": 0.0,
        "delta": -0.562,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.188-
predicted_3B0.016-
predicted_AB2.690-
predicted_AVG0.298-
predicted_BB0.234-
predicted_H0.800-
predicted_HR0.190-
predicted_OBP0.380-
predicted_R0.391-
predicted_RBI0.530-
predicted_SLG0.571-
predicted_SO0.562-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.170-0.018
predicted_3B0.0340.018
predicted_AB2.7760.086
predicted_AVG0.3120.014
predicted_BB0.2750.041
predicted_H0.8670.067
predicted_HBP0.081-
predicted_HR0.2070.017
predicted_OBP0.3920.012
predicted_R0.4200.029
predicted_RBI0.5590.029
predicted_SLG0.6090.038
predicted_SO0.528-0.034
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1700.000
predicted_3B0.0340.000
predicted_AB2.7760.000
predicted_AVG0.3150.003
predicted_BB0.2760.001
predicted_H0.8730.006
predicted_HBP0.0810.000
predicted_HR0.2090.002
predicted_OBP0.376-0.016
predicted_R0.4260.005
predicted_RBI0.5660.007
predicted_SLG0.6260.017
predicted_SO0.527-0.001
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.78), rates preserved: AVG=0.314 HR/AB=0.075

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.170
predicted_3B0.000-0.034
predicted_AB3.0000.224
predicted_AVG0.3330.019
predicted_BB0.000-0.276
predicted_H1.0000.127
predicted_HR0.000-0.209
predicted_OBP0.333-0.043
predicted_R0.000-0.426
predicted_RBI1.0000.434
predicted_SLG0.333-0.293
predicted_SO1.0000.473
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR1.0001.000
PA4.000-
R1.0001.000
RBI2.0001.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 64
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-15.0007.0000.0001.0002.0005.0003.0003.0001.0000.46670.57891.00000.46670.13330.33330.20000.0667
last_100.2010-29.00011.0001.0001.0003.0006.0005.0004.0002.0000.37930.47060.79310.37930.10350.20690.13790.0690
season0.6064-167.00049.00012.0001.00011.00031.00025.00015.00036.0000.29340.35830.57490.29340.06590.18560.08980.2156
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1450
predicted_3B0.0610
predicted_AB2.9000
predicted_AVG0.3321
predicted_BB0.3340
predicted_H0.9630
predicted_HBP0.0810
predicted_HR0.2310
predicted_OBP0.4095
predicted_R0.4630
predicted_RBI0.6010
predicted_SLG0.6630
predicted_SO0.4790
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.18800.14500.1704model_form_blend
predicted_3B0.01600.06100.0344model_form_blend
predicted_AB2.69002.90002.7760model_form_blend
predicted_AVG0.29800.33210.3120model_form_blend
predicted_BB0.23400.33400.2750model_form_blend
predicted_H0.80000.96300.8668model_form_blend
predicted_HBP-0.08100.0810form_only
predicted_HR0.19000.23100.2068model_form_blend
predicted_OBP0.38000.40950.3921model_form_blend
predicted_R0.39100.46300.4205model_form_blend
predicted_RBI0.53000.60100.5591model_form_blend
predicted_SLG0.57100.66300.6087model_form_blend
predicted_SO0.56200.47900.5280model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date145
Season rows before report date145
Report year2026
Profile rows used64
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H2
2B0
3B0
HR1
R1
RBI2
BB0
SO0
SF0
HBP0
season_avg0.293

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.667
Hitting_BB1
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R1
Hitting_RBI2
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB5
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260617_BAL@SEA
game_typefull
mlbID686527
playerID686527
playerNameDominic Canzone
posDH
startedTrue
startingPositionDH
teamSEA
teamID25
game_date2026-06-17
sl_k_percent19.0
sl_bb_percent9.0
sl_woba0.401
sl_xwoba0.389
sl_xba0.294
sl_xslg0.543
sl_sweet_spot_percent39.8
sl_barrel_batted_rate15.8
sl_hard_hit_percent49.6
sl_exit_velocity_avg93.3
sl_launch_angle_avg13.5
sl_whiff_percent29.2
sl_swing_percent47.2
Cal Raleigh (663728) · BATTER · DH · Team SEA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 183
All-history rows before 20260618: 183
System season_avg: 0.1680
Data season_avg (2026 season-to-date): 0.1658
Diff (system - data): 0.0022
System opponent_avg: 0.2180

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0930.0000.000Hitting_2B0.1150.000-0.1150.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.2604.0004.000Hitting_AB3.9893.0000.0111.000
predicted_AVG0.2030.0000.250Hitting_AVG0.1660.333-0.166-0.333
predicted_BB0.4651.0000.000Hitting_BB0.4811.0000.5190.000
predicted_CS-0.0000.000BaseRunning_CS0.0330.000-0.0330.000
predicted_H0.8700.0001.000Hitting_H0.6611.000-0.661-1.000
predicted_HR0.1300.0000.000Hitting_HR0.1640.000-0.1640.000
predicted_OBP0.2790.2000.250Hitting_OBP0.2530.500-0.053-0.300
predicted_R0.3720.0000.000Hitting_R0.4210.000-0.4210.000
predicted_RBI0.4500.0000.000Hitting_RBI0.4210.000-0.4210.000
predicted_SLG0.3270.0000.250Hitting_SLG0.3180.333-0.318-0.333
predicted_SO1.3260.0001.000Hitting_SO1.3830.000-1.3830.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics1
Deboosted Metrics9
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_BB: 0.4650 -> 1.0000 (boost 0.5350, better)
Biggest Deboostpredicted_SO: 1.3260 -> 0.0000 (deboost -1.3260, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend60615-predicted_AB: 4.2600 -> 4.0788 (deboost -0.1812, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot00000--Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71625predicted_H: 0.7969 -> 1.0000 (boost 0.2031, better)predicted_BB: 0.4624 -> 0.0000 (deboost -0.4624, worse)AB rounded to 4 (raw=4.26), rates preserved: AVG=0.187 HR/AB=0.028
5consistency_constraints10101-predicted_R: 0.3962 -> 0.0000 (deboost -0.3962, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.1954 -> 0.2500 (boost 0.0546, better)predicted_SLG: 0.3042 -> 0.2500 (deboost -0.0542, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference31221predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.2500 -> 0.3042 (boost 0.0542, better)predicted_AVG: 0.2500 -> 0.1954 (deboost -0.0546, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "663728",
  "player_name": "Cal Raleigh",
  "position": "DH",
  "team": "SEA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.093,
        "predicted_3B": 0.0,
        "predicted_AB": 4.26,
        "predicted_AVG": 0.203,
        "predicted_BB": 0.465,
        "predicted_H": 0.87,
        "predicted_HR": 0.13,
        "predicted_OBP": 0.279,
        "predicted_R": 0.372,
        "predicted_RBI": 0.45,
        "predicted_SLG": 0.327,
        "predicted_SO": 1.326
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0848,
        "predicted_3B": 0.0008,
        "predicted_AB": 4.0788,
        "predicted_AVG": 0.1926,
        "predicted_BB": 0.4613,
        "predicted_H": 0.7913,
        "predicted_HBP": 0.005,
        "predicted_HR": 0.1181,
        "predicted_OBP": 0.2732,
        "predicted_R": 0.3913,
        "predicted_RBI": 0.4348,
        "predicted_SLG": 0.3065,
        "predicted_SO": 1.2657
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.093,
          "after": 0.0848,
          "delta": -0.0082,
          "percent_delta": -0.0882,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.26,
          "after": 4.0788,
          "delta": -0.1812,
          "percent_delta": -0.0425,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.203,
          "after": 0.1926,
          "delta": -0.0104,
          "percent_delta": -0.0512,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.465,
          "after": 0.4613,
          "delta": -0.0037,
          "percent_delta": -0.008,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.87,
          "after": 0.7913,
          "delta": -0.0787,
          "percent_delta": -0.0905,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.13,
          "after": 0.1181,
          "delta": -0.0119,
          "percent_delta": -0.0915,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.279,
          "after": 0.2732,
          "delta": -0.0058,
          "percent_delta": -0.0208,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.372,
          "after": 0.3913,
          "delta": 0.0193,
          "percent_delta": 0.0519,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.45,
          "after": 0.4348,
          "delta": -0.0152,
          "percent_delta": -0.0338,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.327,
          "after": 0.3065,
          "delta": -0.0205,
          "percent_delta": -0.0627,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.326,
          "after": 1.2657,
          "delta": -0.0603,
          "percent_delta": -0.0455,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 0,
        "deboosted_metrics": 6,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.26,
          "after": 4.0788,
          "delta": -0.1812,
          "percent_delta": -0.0425,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 43
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0848,
        "predicted_3B": 0.0008,
        "predicted_AB": 4.0788,
        "predicted_AVG": 0.1954,
        "predicted_BB": 0.4624,
        "predicted_H": 0.7969,
        "predicted_HBP": 0.005,
        "predicted_HR": 0.1192,
        "predicted_OBP": 0.2773,
        "predicted_R": 0.3962,
        "predicted_RBI": 0.4403,
        "predicted_SLG": 0.3042,
        "predicted_SO": 1.2627
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0848,
          "after": 0.0848,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0788,
          "after": 4.0788,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1926,
          "after": 0.1954,
          "delta": 0.0028,
          "percent_delta": 0.0145,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.4613,
          "after": 0.4624,
          "delta": 0.0011,
          "percent_delta": 0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7913,
          "after": 0.7969,
          "delta": 0.0056,
          "percent_delta": 0.0071,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.005,
          "after": 0.005,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1181,
          "after": 0.1192,
          "delta": 0.0011,
          "percent_delta": 0.0093,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2732,
          "after": 0.2773,
          "delta": 0.0041,
          "percent_delta": 0.015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3913,
          "after": 0.3962,
          "delta": 0.0049,
          "percent_delta": 0.0125,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4348,
          "after": 0.4403,
          "delta": 0.0055,
          "percent_delta": 0.0126,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3065,
          "after": 0.3042,
          "delta": -0.0023,
          "percent_delta": -0.0075,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.2657,
          "after": 1.2627,
          "delta": -0.003,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.26), rates preserved: AVG=0.187 HR/AB=0.028",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0848,
          "after": 0.0,
          "delta": -0.0848,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0788,
          "after": 4.0,
          "delta": -0.0788,
          "percent_delta": -0.0193,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4624,
          "after": 0.0,
          "delta": -0.4624,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7969,
          "after": 1.0,
          "delta": 0.2031,
          "percent_delta": 0.2549,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.005,
          "after": 0.0,
          "delta": -0.005,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1192,
          "after": 0.0,
          "delta": -0.1192,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4403,
          "after": 0.0,
          "delta": -0.4403,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.2627,
          "after": 1.0,
          "delta": -0.2627,
          "percent_delta": -0.208,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.7969,
          "after": 1.0,
          "delta": 0.2031,
          "percent_delta": 0.2549,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.4624,
          "after": 0.0,
          "delta": -0.4624,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3962,
          "after": 0.0,
          "delta": -0.3962,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3962,
          "after": 0.0,
          "delta": -0.3962,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1954,
          "after": 0.25,
          "delta": 0.0546,
          "percent_delta": 0.2794,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2773,
          "after": 0.25,
          "delta": -0.0273,
          "percent_delta": -0.0984,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3042,
          "after": 0.25,
          "delta": -0.0542,
          "percent_delta": -0.1782,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1954,
          "after": 0.25,
          "delta": 0.0546,
          "percent_delta": 0.2794,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3042,
          "after": 0.25,
          "delta": -0.0542,
          "percent_delta": -0.1782,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.1954,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2773,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3042,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.1954,
          "delta": -0.0546,
          "percent_delta": -0.2185,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2773,
          "delta": 0.0273,
          "percent_delta": 0.1092,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3042,
          "delta": 0.0542,
          "percent_delta": 0.2168,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3042,
          "delta": 0.0542,
          "percent_delta": 0.2168,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.1954,
          "delta": -0.0546,
          "percent_delta": -0.2185,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.093,
        "after": 0.0,
        "delta": -0.093,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.26,
        "after": 4.0,
        "delta": -0.26,
        "percent_delta": -0.061,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.203,
        "after": 0.1954,
        "delta": -0.0076,
        "percent_delta": -0.0374,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.465,
        "after": 1.0,
        "delta": 0.535,
        "percent_delta": 1.1505,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.87,
        "after": 0.0,
        "delta": -0.87,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.13,
        "after": 0.0,
        "delta": -0.13,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.279,
        "after": 0.2773,
        "delta": -0.0017,
        "percent_delta": -0.0061,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.372,
        "after": 0.0,
        "delta": -0.372,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.45,
        "after": 0.0,
        "delta": -0.45,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.327,
        "after": 0.3042,
        "delta": -0.0228,
        "percent_delta": -0.0697,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.326,
        "after": 0.0,
        "delta": -1.326,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 1,
      "deboosted_metrics": 9,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.465,
        "after": 1.0,
        "delta": 0.535,
        "percent_delta": 1.1505,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 1.326,
        "after": 0.0,
        "delta": -1.326,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.093-
predicted_3B0.000-
predicted_AB4.260-
predicted_AVG0.203-
predicted_BB0.465-
predicted_H0.870-
predicted_HR0.130-
predicted_OBP0.279-
predicted_R0.372-
predicted_RBI0.450-
predicted_SLG0.327-
predicted_SO1.326-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.085-0.008
predicted_3B0.0010.001
predicted_AB4.079-0.181
predicted_AVG0.193-0.010
predicted_BB0.461-0.004
predicted_H0.791-0.079
predicted_HBP0.005-
predicted_HR0.118-0.012
predicted_OBP0.273-0.006
predicted_R0.3910.019
predicted_RBI0.435-0.015
predicted_SLG0.306-0.021
predicted_SO1.266-0.060
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0850.000
predicted_3B0.0010.000
predicted_AB4.0790.000
predicted_AVG0.1950.003
predicted_BB0.4620.001
predicted_H0.7970.006
predicted_HBP0.0050.000
predicted_HR0.1190.001
predicted_OBP0.2770.004
predicted_R0.3960.005
predicted_RBI0.4400.006
predicted_SLG0.304-0.002
predicted_SO1.263-0.003
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.26), rates preserved: AVG=0.187 HR/AB=0.028

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.085
predicted_3B0.000-0.001
predicted_AB4.000-0.079
predicted_AVG0.2500.055
predicted_BB0.000-0.462
predicted_H1.0000.203
predicted_HR0.000-0.119
predicted_OBP0.250-0.027
predicted_R0.000-0.396
predicted_RBI0.000-0.440
predicted_SLG0.250-0.054
predicted_SO1.000-0.263
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 43
Reference playing time: 4.260
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0004.0000.0000.0000.0002.0003.0003.0004.0000.22220.33330.22220.22220.00000.11110.16670.2222
last_100.2010-38.0004.0000.0000.0000.0002.0003.0004.00014.0000.10530.19050.10530.10530.00000.05260.10530.3684
season0.6043-167.00028.0004.0000.0007.00020.00016.00020.00057.0000.16770.25400.31740.16770.04190.11980.11980.3413
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0730
predicted_3B0.0020
predicted_AB3.8180
predicted_AVG0.1777
predicted_BB0.4560
predicted_H0.6780
predicted_HBP0.0050
predicted_HR0.1010
predicted_OBP0.2649
predicted_R0.4190
predicted_RBI0.4130
predicted_SLG0.2770
predicted_SO1.1790
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.09300.07300.0848model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB4.26003.81804.0788model_form_blend
predicted_AVG0.20300.17770.1926model_form_blend
predicted_BB0.46500.45600.4613model_form_blend
predicted_H0.87000.67800.7913model_form_blend
predicted_HBP-0.00500.0050form_only
predicted_HR0.13000.10100.1181model_form_blend
predicted_OBP0.27900.26490.2732model_form_blend
predicted_R0.37200.41900.3913model_form_blend
predicted_RBI0.45000.41300.4348model_form_blend
predicted_SLG0.32700.27700.3065model_form_blend
predicted_SO1.32601.17901.2657model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date183
Season rows before report date183
Report year2026
Profile rows used43
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO0
SF0
HBP0
season_avg0.168

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB1
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedC
gameID20260617_BAL@SEA
game_typefull
mlbID663728
playerID663728
playerNameCal Raleigh
posC
startedTrue
startingPositionC
teamSEA
teamID25
game_date2026-06-17
sl_k_percent30.2
sl_bb_percent10.6
sl_woba0.257
sl_xwoba0.3
sl_xba0.189
sl_xslg0.399
sl_sweet_spot_percent33.9
sl_barrel_batted_rate12.5
sl_hard_hit_percent31.3
sl_exit_velocity_avg87.4
sl_launch_angle_avg23.3
sl_whiff_percent30.5
sl_swing_percent53.0
Josh Naylor (647304) · BATTER · 1B · Team SEA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 244
All-history rows before 20260618: 244
System season_avg: 0.2530
Data season_avg (2026 season-to-date): 0.2656
Diff (system - data): -0.0126
System opponent_avg: 0.2770

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1180.0000.000Hitting_2B0.1021.000-0.102-1.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.3205.0004.000Hitting_AB3.9963.0001.0042.000
predicted_AVG0.2320.6000.250Hitting_AVG0.2660.3330.3340.267
predicted_BB0.3380.0000.000Hitting_BB0.3650.000-0.3650.000
predicted_CS-0.0000.000BaseRunning_CS0.0450.000-0.0450.000
predicted_H1.0003.0001.000Hitting_H1.0611.0001.9392.000
predicted_HR0.1401.0000.000Hitting_HR0.1020.0000.8981.000
predicted_OBP0.3000.6000.250Hitting_OBP0.3300.3330.2700.267
predicted_R0.3971.0000.000Hitting_R0.4100.0000.5901.000
predicted_RBI0.5201.0000.000Hitting_RBI0.4750.0000.5251.000
predicted_SLG0.3941.2000.250Hitting_SLG0.3680.6670.8320.533
predicted_SO0.5590.0000.000Hitting_SO0.5940.000-0.5940.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics10
Boosted Metrics5
Deboosted Metrics5
Better Metrics6
Worse Metrics4
Biggest Boostpredicted_H: 1.0000 -> 3.0000 (boost 2.0000, better)
Biggest Deboostpredicted_SO: 0.5590 -> 0.0000 (deboost -0.5590, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend10101-predicted_AB: 4.3200 -> 4.1770 (deboost -0.1430, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_SLG: 0.3933 -> 0.3730 (deboost -0.0203, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling60615-predicted_SO: 0.5378 -> 0.0000 (deboost -0.5378, better)AB rounded to 4 (raw=4.32), rates preserved: AVG=0.228 HR/AB=0.033
5consistency_constraints10101-predicted_R: 0.4063 -> 0.0000 (deboost -0.4063, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2353 -> 0.2500 (boost 0.0147, better)predicted_SLG: 0.3730 -> 0.2500 (deboost -0.1230, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference55050predicted_H: 1.0000 -> 3.0000 (boost 2.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.2500 -> 0.3730 (boost 0.1230, better)predicted_AVG: 0.2500 -> 0.2353 (deboost -0.0147, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "647304",
  "player_name": "Josh Naylor",
  "position": "1B",
  "team": "SEA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.118,
        "predicted_3B": 0.0,
        "predicted_AB": 4.32,
        "predicted_AVG": 0.232,
        "predicted_BB": 0.338,
        "predicted_H": 1.0,
        "predicted_HR": 0.14,
        "predicted_OBP": 0.3,
        "predicted_R": 0.397,
        "predicted_RBI": 0.52,
        "predicted_SLG": 0.394,
        "predicted_SO": 0.559
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1404,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.177,
        "predicted_AVG": 0.234,
        "predicted_BB": 0.3232,
        "predicted_H": 0.9759,
        "predicted_HBP": 0.037,
        "predicted_HR": 0.1434,
        "predicted_OBP": 0.2982,
        "predicted_R": 0.4012,
        "predicted_RBI": 0.5124,
        "predicted_SLG": 0.3933,
        "predicted_SO": 0.5391
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.118,
          "after": 0.1404,
          "delta": 0.0224,
          "percent_delta": 0.1898,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.32,
          "after": 4.177,
          "delta": -0.143,
          "percent_delta": -0.0331,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.232,
          "after": 0.234,
          "delta": 0.002,
          "percent_delta": 0.0086,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.338,
          "after": 0.3232,
          "delta": -0.0148,
          "percent_delta": -0.0438,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.9759,
          "delta": -0.0241,
          "percent_delta": -0.0241,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.14,
          "after": 0.1434,
          "delta": 0.0034,
          "percent_delta": 0.0243,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3,
          "after": 0.2982,
          "delta": -0.0018,
          "percent_delta": -0.006,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.397,
          "after": 0.4012,
          "delta": 0.0042,
          "percent_delta": 0.0106,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.52,
          "after": 0.5124,
          "delta": -0.0076,
          "percent_delta": -0.0146,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.394,
          "after": 0.3933,
          "delta": -0.0007,
          "percent_delta": -0.0018,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.559,
          "after": 0.5391,
          "delta": -0.0199,
          "percent_delta": -0.0356,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.32,
          "after": 4.177,
          "delta": -0.143,
          "percent_delta": -0.0331,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 68
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1404,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.177,
        "predicted_AVG": 0.2353,
        "predicted_BB": 0.324,
        "predicted_H": 0.9828,
        "predicted_HBP": 0.037,
        "predicted_HR": 0.1447,
        "predicted_OBP": 0.2903,
        "predicted_R": 0.4063,
        "predicted_RBI": 0.5189,
        "predicted_SLG": 0.373,
        "predicted_SO": 0.5378
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1404,
          "after": 0.1404,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.177,
          "after": 4.177,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.234,
          "after": 0.2353,
          "delta": 0.0013,
          "percent_delta": 0.0056,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3232,
          "after": 0.324,
          "delta": 0.0008,
          "percent_delta": 0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9759,
          "after": 0.9828,
          "delta": 0.0069,
          "percent_delta": 0.0071,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.037,
          "after": 0.037,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1434,
          "after": 0.1447,
          "delta": 0.0013,
          "percent_delta": 0.0091,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2982,
          "after": 0.2903,
          "delta": -0.0079,
          "percent_delta": -0.0265,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4012,
          "after": 0.4063,
          "delta": 0.0051,
          "percent_delta": 0.0127,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5124,
          "after": 0.5189,
          "delta": 0.0065,
          "percent_delta": 0.0127,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3933,
          "after": 0.373,
          "delta": -0.0203,
          "percent_delta": -0.0516,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5391,
          "after": 0.5378,
          "delta": -0.0013,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3933,
          "after": 0.373,
          "delta": -0.0203,
          "percent_delta": -0.0516,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.32), rates preserved: AVG=0.228 HR/AB=0.033",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1404,
          "after": 0.0,
          "delta": -0.1404,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.177,
          "after": 4.0,
          "delta": -0.177,
          "percent_delta": -0.0424,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.324,
          "after": 0.0,
          "delta": -0.324,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9828,
          "after": 1.0,
          "delta": 0.0172,
          "percent_delta": 0.0175,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.037,
          "after": 0.0,
          "delta": -0.037,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1447,
          "after": 0.0,
          "delta": -0.1447,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5189,
          "after": 0.0,
          "delta": -0.5189,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5378,
          "after": 0.0,
          "delta": -0.5378,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 0,
        "deboosted_metrics": 6,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 0.5378,
          "after": 0.0,
          "delta": -0.5378,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4063,
          "after": 0.0,
          "delta": -0.4063,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4063,
          "after": 0.0,
          "delta": -0.4063,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2353,
          "after": 0.25,
          "delta": 0.0147,
          "percent_delta": 0.0625,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2903,
          "after": 0.25,
          "delta": -0.0403,
          "percent_delta": -0.1388,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.373,
          "after": 0.25,
          "delta": -0.123,
          "percent_delta": -0.3298,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2353,
          "after": 0.25,
          "delta": 0.0147,
          "percent_delta": 0.0625,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.373,
          "after": 0.25,
          "delta": -0.123,
          "percent_delta": -0.3298,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 3.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 5.0,
          "delta": 1.0,
          "percent_delta": 0.25,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 5,
        "deboosted_metrics": 0,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.2353,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_FB": 0.0,
        "predicted_H": 3.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_OBP": 0.2903,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.373,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2353,
          "delta": -0.0147,
          "percent_delta": -0.0588,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2903,
          "delta": 0.0403,
          "percent_delta": 0.1614,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.373,
          "delta": 0.123,
          "percent_delta": 0.4921,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.373,
          "delta": 0.123,
          "percent_delta": 0.4921,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2353,
          "delta": -0.0147,
          "percent_delta": -0.0588,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.118,
        "after": 0.0,
        "delta": -0.118,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.32,
        "after": 5.0,
        "delta": 0.68,
        "percent_delta": 0.1574,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.232,
        "after": 0.2353,
        "delta": 0.0033,
        "percent_delta": 0.0142,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.338,
        "after": 0.0,
        "delta": -0.338,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 3.0,
        "delta": 2.0,
        "percent_delta": 2.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.14,
        "after": 1.0,
        "delta": 0.86,
        "percent_delta": 6.1429,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.3,
        "after": 0.2903,
        "delta": -0.0097,
        "percent_delta": -0.0323,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.397,
        "after": 1.0,
        "delta": 0.603,
        "percent_delta": 1.5189,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.52,
        "after": 1.0,
        "delta": 0.48,
        "percent_delta": 0.9231,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.394,
        "after": 0.373,
        "delta": -0.021,
        "percent_delta": -0.0533,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.559,
        "after": 0.0,
        "delta": -0.559,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 5,
      "deboosted_metrics": 5,
      "better_metrics": 6,
      "worse_metrics": 4,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 3.0,
        "delta": 2.0,
        "percent_delta": 2.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.559,
        "after": 0.0,
        "delta": -0.559,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.118-
predicted_3B0.000-
predicted_AB4.320-
predicted_AVG0.232-
predicted_BB0.338-
predicted_H1.000-
predicted_HR0.140-
predicted_OBP0.300-
predicted_R0.397-
predicted_RBI0.520-
predicted_SLG0.394-
predicted_SO0.559-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1400.022
predicted_3B0.0000.000
predicted_AB4.177-0.143
predicted_AVG0.2340.002
predicted_BB0.323-0.015
predicted_H0.976-0.024
predicted_HBP0.037-
predicted_HR0.1430.003
predicted_OBP0.298-0.002
predicted_R0.4010.004
predicted_RBI0.512-0.008
predicted_SLG0.393-0.001
predicted_SO0.539-0.020
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1400.000
predicted_3B0.0000.000
predicted_AB4.1770.000
predicted_AVG0.2350.001
predicted_BB0.3240.001
predicted_H0.9830.007
predicted_HBP0.0370.000
predicted_HR0.1450.001
predicted_OBP0.290-0.008
predicted_R0.4060.005
predicted_RBI0.5190.007
predicted_SLG0.373-0.020
predicted_SO0.538-0.001
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.32), rates preserved: AVG=0.228 HR/AB=0.033

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO0.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO0.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.140
predicted_3B0.000-0.000
predicted_AB4.000-0.177
predicted_AVG0.2500.015
predicted_BB0.000-0.324
predicted_H1.0000.017
predicted_HR0.000-0.145
predicted_OBP0.250-0.040
predicted_R0.000-0.406
predicted_RBI0.000-0.519
predicted_SLG0.250-0.123
predicted_SO0.000-0.538
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB5.0001.000
BB0.0000.000
CS0.0000.000
H3.0002.000
HBP0.0000.000
HR1.0001.000
PA5.000-
R1.0001.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO0.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 68
Reference playing time: 4.320
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.0003.0001.0000.0001.0002.0001.0001.0001.0000.15000.19050.35000.15000.05000.10000.05000.0500
last_100.2010-41.00011.0003.0000.0002.0007.0006.0003.0005.0000.26830.33330.48780.26830.04880.17070.07320.1220
season0.6068-269.00068.0008.0000.0008.00032.00027.00023.00038.0000.25280.31530.37170.25280.02970.11900.08550.1413
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1710
predicted_3B0.0010
predicted_AB3.9820
predicted_AVG0.2367
predicted_BB0.3030
predicted_H0.9430
predicted_HBP0.0370
predicted_HR0.1480
predicted_OBP0.2957
predicted_R0.4070
predicted_RBI0.5020
predicted_SLG0.3924
predicted_SO0.5120
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.11800.17100.1404model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.32003.98204.1770model_form_blend
predicted_AVG0.23200.23670.2340model_form_blend
predicted_BB0.33800.30300.3232model_form_blend
predicted_H1.00000.94300.9759model_form_blend
predicted_HBP-0.03700.0370form_only
predicted_HR0.14000.14800.1434model_form_blend
predicted_OBP0.30000.29570.2982model_form_blend
predicted_R0.39700.40700.4012model_form_blend
predicted_RBI0.52000.50200.5124model_form_blend
predicted_SLG0.39400.39240.3933model_form_blend
predicted_SO0.55900.51200.5391model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date244
Season rows before report date244
Report year2026
Profile rows used68
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB5
H3
2B0
3B0
HR1
R1
RBI1
BB0
SO0
SF0
HBP0
season_avg0.253

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB2
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B
gameID20260614_SEA@WAS
game_typefull
mlbID647304
playerID647304
playerNameJosh Naylor
pos1B
startedTrue
startingPosition1B
teamSEA
teamID25
game_date2026-06-14
sl_k_percent12.8
sl_bb_percent7.8
sl_woba0.304
sl_xwoba0.323
sl_xba0.273
sl_xslg0.404
sl_sweet_spot_percent31.0
sl_barrel_batted_rate5.2
sl_hard_hit_percent37.9
sl_exit_velocity_avg87.8
sl_launch_angle_avg14.5
sl_whiff_percent19.0
sl_swing_percent52.8
J.P. Crawford (641487) · BATTER · 3B · Team SEA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 213
All-history rows before 20260618: 213
System season_avg: 0.2260
Data season_avg (2026 season-to-date): 0.2306
Diff (system - data): -0.0046
System opponent_avg: 0.1670

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0880.0000.000Hitting_2B0.0940.000-0.0940.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.9703.0004.000Hitting_AB3.6854.000-0.685-1.000
predicted_AVG0.2510.0000.250Hitting_AVG0.2310.000-0.2310.000
predicted_BB0.6322.0001.000Hitting_BB0.6570.0001.3432.000
predicted_CS-0.0000.000BaseRunning_CS0.0470.000-0.0470.000
predicted_H0.9900.0001.000Hitting_H0.8500.000-0.8500.000
predicted_HR0.1900.0000.000Hitting_HR0.1690.000-0.1690.000
predicted_OBP0.3830.4000.400Hitting_OBP0.3560.0000.0440.400
predicted_R0.5440.0001.000Hitting_R0.5960.000-0.5960.000
predicted_RBI0.4500.0000.000Hitting_RBI0.4460.000-0.4460.000
predicted_SLG0.4550.0000.250Hitting_SLG0.3940.000-0.3940.000
predicted_SO0.8070.0001.000Hitting_SO0.7892.000-0.789-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics2
Deboosted Metrics9
Better Metrics3
Worse Metrics8
Biggest Boostpredicted_BB: 0.6320 -> 2.0000 (boost 1.3680, better)
Biggest Deboostpredicted_H: 0.9900 -> 0.0000 (deboost -0.9900, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend43131predicted_SLG: 0.4550 -> 0.4730 (boost 0.0180, better)predicted_AB: 3.9700 -> 3.7144 (deboost -0.2556, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_SLG: 0.4730 -> 0.4495 (deboost -0.0235, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73425predicted_BB: 0.6641 -> 1.0000 (boost 0.3359, better)predicted_RBI: 0.4227 -> 0.0000 (deboost -0.4227, worse)AB rounded to 4 (raw=3.97), rates preserved: AVG=0.246 HR/AB=0.049
5consistency_constraints11010predicted_R: 0.5500 -> 1.0000 (boost 0.4500, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_OBP: 0.3745 -> 0.4000 (boost 0.0255, better)predicted_SLG: 0.4495 -> 0.2500 (deboost -0.1995, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference51423predicted_BB: 1.0000 -> 2.0000 (boost 1.0000, better)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.2500 -> 0.4495 (boost 0.1995, better)predicted_OBP: 0.4000 -> 0.3745 (deboost -0.0255, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "641487",
  "player_name": "J.P. Crawford",
  "position": "3B",
  "team": "SEA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.088,
        "predicted_3B": 0.0,
        "predicted_AB": 3.97,
        "predicted_AVG": 0.251,
        "predicted_BB": 0.632,
        "predicted_H": 0.99,
        "predicted_HR": 0.19,
        "predicted_OBP": 0.383,
        "predicted_R": 0.544,
        "predicted_RBI": 0.45,
        "predicted_SLG": 0.455,
        "predicted_SO": 0.807
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1043,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.7144,
        "predicted_AVG": 0.2629,
        "predicted_BB": 0.6625,
        "predicted_H": 0.9687,
        "predicted_HBP": 0.112,
        "predicted_HR": 0.1946,
        "predicted_OBP": 0.3954,
        "predicted_R": 0.5432,
        "predicted_RBI": 0.4174,
        "predicted_SLG": 0.473,
        "predicted_SO": 0.8421
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.088,
          "after": 0.1043,
          "delta": 0.0163,
          "percent_delta": 0.1852,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.97,
          "after": 3.7144,
          "delta": -0.2556,
          "percent_delta": -0.0644,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.251,
          "after": 0.2629,
          "delta": 0.0119,
          "percent_delta": 0.0474,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.632,
          "after": 0.6625,
          "delta": 0.0305,
          "percent_delta": 0.0483,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.99,
          "after": 0.9687,
          "delta": -0.0213,
          "percent_delta": -0.0215,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.19,
          "after": 0.1946,
          "delta": 0.0046,
          "percent_delta": 0.0242,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.383,
          "after": 0.3954,
          "delta": 0.0124,
          "percent_delta": 0.0324,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.544,
          "after": 0.5432,
          "delta": -0.0008,
          "percent_delta": -0.0015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.45,
          "after": 0.4174,
          "delta": -0.0326,
          "percent_delta": -0.0724,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.455,
          "after": 0.473,
          "delta": 0.018,
          "percent_delta": 0.0396,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.807,
          "after": 0.8421,
          "delta": 0.0351,
          "percent_delta": 0.0435,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.455,
          "after": 0.473,
          "delta": 0.018,
          "percent_delta": 0.0396,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.97,
          "after": 3.7144,
          "delta": -0.2556,
          "percent_delta": -0.0644,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 57
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1043,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.7144,
        "predicted_AVG": 0.2626,
        "predicted_BB": 0.6641,
        "predicted_H": 0.9756,
        "predicted_HBP": 0.112,
        "predicted_HR": 0.1964,
        "predicted_OBP": 0.3745,
        "predicted_R": 0.55,
        "predicted_RBI": 0.4227,
        "predicted_SLG": 0.4495,
        "predicted_SO": 0.8401
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1043,
          "after": 0.1043,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.7144,
          "after": 3.7144,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2629,
          "after": 0.2626,
          "delta": -0.0003,
          "percent_delta": -0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.6625,
          "after": 0.6641,
          "delta": 0.0016,
          "percent_delta": 0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9687,
          "after": 0.9756,
          "delta": 0.0069,
          "percent_delta": 0.0071,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.112,
          "after": 0.112,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1946,
          "after": 0.1964,
          "delta": 0.0018,
          "percent_delta": 0.0092,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3954,
          "after": 0.3745,
          "delta": -0.0209,
          "percent_delta": -0.0529,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5432,
          "after": 0.55,
          "delta": 0.0068,
          "percent_delta": 0.0125,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4174,
          "after": 0.4227,
          "delta": 0.0053,
          "percent_delta": 0.0127,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.473,
          "after": 0.4495,
          "delta": -0.0235,
          "percent_delta": -0.0497,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8421,
          "after": 0.8401,
          "delta": -0.002,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.473,
          "after": 0.4495,
          "delta": -0.0235,
          "percent_delta": -0.0497,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.97), rates preserved: AVG=0.246 HR/AB=0.049",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1043,
          "after": 0.0,
          "delta": -0.1043,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.7144,
          "after": 4.0,
          "delta": 0.2856,
          "percent_delta": 0.0769,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.6641,
          "after": 1.0,
          "delta": 0.3359,
          "percent_delta": 0.5058,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9756,
          "after": 1.0,
          "delta": 0.0244,
          "percent_delta": 0.025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.112,
          "after": 0.0,
          "delta": -0.112,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1964,
          "after": 0.0,
          "delta": -0.1964,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4227,
          "after": 0.0,
          "delta": -0.4227,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8401,
          "after": 1.0,
          "delta": 0.1599,
          "percent_delta": 0.1903,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.6641,
          "after": 1.0,
          "delta": 0.3359,
          "percent_delta": 0.5058,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4227,
          "after": 0.0,
          "delta": -0.4227,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.55,
          "after": 1.0,
          "delta": 0.45,
          "percent_delta": 0.8182,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.55,
          "after": 1.0,
          "delta": 0.45,
          "percent_delta": 0.8182,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.4,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2626,
          "after": 0.25,
          "delta": -0.0126,
          "percent_delta": -0.048,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3745,
          "after": 0.4,
          "delta": 0.0255,
          "percent_delta": 0.0681,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4495,
          "after": 0.25,
          "delta": -0.1995,
          "percent_delta": -0.4438,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3745,
          "after": 0.4,
          "delta": 0.0255,
          "percent_delta": 0.0681,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4495,
          "after": 0.25,
          "delta": -0.1995,
          "percent_delta": -0.4438,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 2.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 1,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2626,
        "predicted_BB": 2.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3745,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4495,
        "predicted_SO": 0.0,
        "predicted_TB": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2626,
          "delta": 0.0126,
          "percent_delta": 0.0506,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3745,
          "delta": -0.0255,
          "percent_delta": -0.0638,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4495,
          "delta": 0.1995,
          "percent_delta": 0.7981,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4495,
          "delta": 0.1995,
          "percent_delta": 0.7981,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3745,
          "delta": -0.0255,
          "percent_delta": -0.0638,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.088,
        "after": 0.0,
        "delta": -0.088,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.97,
        "after": 3.0,
        "delta": -0.97,
        "percent_delta": -0.2443,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.251,
        "after": 0.2626,
        "delta": 0.0116,
        "percent_delta": 0.0462,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.632,
        "after": 2.0,
        "delta": 1.368,
        "percent_delta": 2.1646,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.99,
        "after": 0.0,
        "delta": -0.99,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.19,
        "after": 0.0,
        "delta": -0.19,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.383,
        "after": 0.3745,
        "delta": -0.0085,
        "percent_delta": -0.0222,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.544,
        "after": 0.0,
        "delta": -0.544,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.45,
        "after": 0.0,
        "delta": -0.45,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.455,
        "after": 0.4495,
        "delta": -0.0055,
        "percent_delta": -0.0121,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.807,
        "after": 0.0,
        "delta": -0.807,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 2,
      "deboosted_metrics": 9,
      "better_metrics": 3,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.632,
        "after": 2.0,
        "delta": 1.368,
        "percent_delta": 2.1646,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.99,
        "after": 0.0,
        "delta": -0.99,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.088-
predicted_3B0.000-
predicted_AB3.970-
predicted_AVG0.251-
predicted_BB0.632-
predicted_H0.990-
predicted_HR0.190-
predicted_OBP0.383-
predicted_R0.544-
predicted_RBI0.450-
predicted_SLG0.455-
predicted_SO0.807-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1040.016
predicted_3B0.0000.000
predicted_AB3.714-0.256
predicted_AVG0.2630.012
predicted_BB0.6620.030
predicted_H0.969-0.021
predicted_HBP0.112-
predicted_HR0.1950.005
predicted_OBP0.3950.012
predicted_R0.543-0.001
predicted_RBI0.417-0.033
predicted_SLG0.4730.018
predicted_SO0.8420.035
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1040.000
predicted_3B0.0000.000
predicted_AB3.7140.000
predicted_AVG0.263-0.000
predicted_BB0.6640.002
predicted_H0.9760.007
predicted_HBP0.1120.000
predicted_HR0.1960.002
predicted_OBP0.374-0.021
predicted_R0.5500.007
predicted_RBI0.4230.005
predicted_SLG0.450-0.023
predicted_SO0.840-0.002
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.97), rates preserved: AVG=0.246 HR/AB=0.049

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.104
predicted_3B0.000-0.000
predicted_AB4.0000.286
predicted_AVG0.250-0.013
predicted_BB1.0000.336
predicted_H1.0000.024
predicted_HR0.000-0.196
predicted_OBP0.4000.026
predicted_R1.0000.450
predicted_RBI0.000-0.423
predicted_SLG0.250-0.200
predicted_SO1.0000.160
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB2.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R0.000-1.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 57
Reference playing time: 3.970
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-13.0005.0001.0000.0001.0001.0002.0005.0004.0000.38460.57890.69230.38460.07690.07690.38460.3077
last_100.2010-34.00012.0001.0000.0003.0004.0007.0007.00012.0000.35290.47620.64710.35290.08820.11770.20590.3529
season0.6057-199.00045.0005.0000.00010.00023.00031.00036.00046.0000.22610.35680.40200.22610.05030.11560.18090.2312
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1270
predicted_3B0.0010
predicted_AB3.3580
predicted_AVG0.2795
predicted_BB0.7050
predicted_H0.9390
predicted_HBP0.1120
predicted_HR0.2010
predicted_OBP0.4127
predicted_R0.5420
predicted_RBI0.3720
predicted_SLG0.4981
predicted_SO0.8910
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.08800.12700.1043model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB3.97003.35803.7144model_form_blend
predicted_AVG0.25100.27950.2629model_form_blend
predicted_BB0.63200.70500.6625model_form_blend
predicted_H0.99000.93900.9687model_form_blend
predicted_HBP-0.11200.1120form_only
predicted_HR0.19000.20100.1946model_form_blend
predicted_OBP0.38300.41270.3954model_form_blend
predicted_R0.54400.54200.5432model_form_blend
predicted_RBI0.45000.37200.4174model_form_blend
predicted_SLG0.45500.49810.4730model_form_blend
predicted_SO0.80700.89100.8421model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date213
Season rows before report date213
Report year2026
Profile rows used57
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB2
SO0
SF0
HBP0
season_avg0.226

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB0
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260617_BAL@SEA
game_typefull
mlbID641487
playerID641487
playerNameJ.P. Crawford
posSS
startedTrue
startingPosition3B
teamSEA
teamID25
game_date2026-06-17
sl_k_percent19.1
sl_bb_percent14.9
sl_woba0.343
sl_xwoba0.357
sl_xba0.254
sl_xslg0.416
sl_sweet_spot_percent39.6
sl_barrel_batted_rate9.2
sl_hard_hit_percent36.4
sl_exit_velocity_avg88.4
sl_launch_angle_avg12.4
sl_whiff_percent17.3
sl_swing_percent37.9
Mitch Garver (641598) · BATTER · C · Team SEA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 94
All-history rows before 20260618: 94
System season_avg: 0.2000
Data season_avg (2026 season-to-date): 0.2169
Diff (system - data): -0.0169
System opponent_avg: 0.1430
System season_avg diverges from 2026 season-to-date by -0.0169. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0650.0000.000Hitting_2B0.0640.000-0.0640.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.9033.0003.000Hitting_AB2.8944.0000.106-1.000
predicted_AVG0.2530.0000.333Hitting_AVG0.2170.500-0.217-0.500
predicted_BB0.5161.0000.000Hitting_BB0.6490.0000.3511.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.6400.0001.000Hitting_H0.6282.000-0.628-2.000
predicted_HR0.1100.0000.000Hitting_HR0.0960.000-0.0960.000
predicted_OBP0.3110.2500.333Hitting_OBP0.3600.500-0.110-0.250
predicted_R0.4520.0000.000Hitting_R0.5531.000-0.553-1.000
predicted_RBI0.4300.0000.000Hitting_RBI0.3091.000-0.309-1.000
predicted_SLG0.3770.0000.333Hitting_SLG0.3380.500-0.338-0.500
predicted_SO1.0321.0001.000Hitting_SO0.9682.0000.032-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics3
Deboosted Metrics7
Better Metrics3
Worse Metrics7
Biggest Boostpredicted_BB: 0.5160 -> 1.0000 (boost 0.4840, better)
Biggest Deboostpredicted_H: 0.6400 -> 0.0000 (deboost -0.6400, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend21111predicted_AB: 2.9030 -> 3.0564 (boost 0.1534, better)predicted_AVG: 0.2530 -> 0.2421 (deboost -0.0109, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot31212predicted_OBP: 0.3109 -> 0.3280 (boost 0.0171, better)predicted_AVG: 0.2421 -> 0.2238 (deboost -0.0183, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling61515predicted_H: 0.6841 -> 1.0000 (boost 0.3159, better)predicted_RBI: 0.4815 -> 0.0000 (deboost -0.4815, worse)AB rounded to 3 (raw=3.06), rates preserved: AVG=0.224 HR/AB=0.039
5consistency_constraints10101-predicted_R: 0.4636 -> 0.0000 (deboost -0.4636, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2238 -> 0.3330 (boost 0.1092, better)predicted_SLG: 0.3669 -> 0.3330 (deboost -0.0339, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21111predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final21111predicted_SLG: 0.3330 -> 0.3669 (boost 0.0339, better)predicted_AVG: 0.3330 -> 0.2238 (deboost -0.1092, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "641598",
  "player_name": "Mitch Garver",
  "position": "C",
  "team": "SEA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.065,
        "predicted_3B": 0.0,
        "predicted_AB": 2.903,
        "predicted_AVG": 0.253,
        "predicted_BB": 0.516,
        "predicted_H": 0.64,
        "predicted_HR": 0.11,
        "predicted_OBP": 0.311,
        "predicted_R": 0.452,
        "predicted_RBI": 0.43,
        "predicted_SLG": 0.377,
        "predicted_SO": 1.032
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0727,
        "predicted_3B": 0.0012,
        "predicted_AB": 3.0564,
        "predicted_AVG": 0.2421,
        "predicted_BB": 0.4728,
        "predicted_H": 0.6793,
        "predicted_HBP": 0.007,
        "predicted_HR": 0.1196,
        "predicted_OBP": 0.3109,
        "predicted_R": 0.4578,
        "predicted_RBI": 0.4755,
        "predicted_SLG": 0.3762,
        "predicted_SO": 1.032
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.065,
          "after": 0.0727,
          "delta": 0.0077,
          "percent_delta": 0.1185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0012,
          "delta": 0.0012,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.903,
          "after": 3.0564,
          "delta": 0.1534,
          "percent_delta": 0.0528,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.253,
          "after": 0.2421,
          "delta": -0.0109,
          "percent_delta": -0.0431,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.516,
          "after": 0.4728,
          "delta": -0.0432,
          "percent_delta": -0.0837,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.64,
          "after": 0.6793,
          "delta": 0.0393,
          "percent_delta": 0.0614,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.11,
          "after": 0.1196,
          "delta": 0.0096,
          "percent_delta": 0.0873,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.311,
          "after": 0.3109,
          "delta": -0.0001,
          "percent_delta": -0.0003,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.452,
          "after": 0.4578,
          "delta": 0.0058,
          "percent_delta": 0.0128,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.43,
          "after": 0.4755,
          "delta": 0.0455,
          "percent_delta": 0.1058,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.377,
          "after": 0.3762,
          "delta": -0.0008,
          "percent_delta": -0.0021,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.032,
          "after": 1.032,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.903,
          "after": 3.0564,
          "delta": 0.1534,
          "percent_delta": 0.0528,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.253,
          "after": 0.2421,
          "delta": -0.0109,
          "percent_delta": -0.0431,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 31
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0727,
        "predicted_3B": 0.0012,
        "predicted_AB": 3.0564,
        "predicted_AVG": 0.2238,
        "predicted_BB": 0.4739,
        "predicted_H": 0.6841,
        "predicted_HBP": 0.007,
        "predicted_HR": 0.1207,
        "predicted_OBP": 0.328,
        "predicted_R": 0.4636,
        "predicted_RBI": 0.4815,
        "predicted_SLG": 0.3669,
        "predicted_SO": 1.0295
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0727,
          "after": 0.0727,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0012,
          "after": 0.0012,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0564,
          "after": 3.0564,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2421,
          "after": 0.2238,
          "delta": -0.0183,
          "percent_delta": -0.0756,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4728,
          "after": 0.4739,
          "delta": 0.0011,
          "percent_delta": 0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6793,
          "after": 0.6841,
          "delta": 0.0048,
          "percent_delta": 0.0071,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.007,
          "after": 0.007,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1196,
          "after": 0.1207,
          "delta": 0.0011,
          "percent_delta": 0.0092,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3109,
          "after": 0.328,
          "delta": 0.0171,
          "percent_delta": 0.055,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4578,
          "after": 0.4636,
          "delta": 0.0058,
          "percent_delta": 0.0127,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4755,
          "after": 0.4815,
          "delta": 0.006,
          "percent_delta": 0.0126,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3762,
          "after": 0.3669,
          "delta": -0.0093,
          "percent_delta": -0.0247,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.032,
          "after": 1.0295,
          "delta": -0.0025,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3109,
          "after": 0.328,
          "delta": 0.0171,
          "percent_delta": 0.055,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2421,
          "after": 0.2238,
          "delta": -0.0183,
          "percent_delta": -0.0756,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.06), rates preserved: AVG=0.224 HR/AB=0.039",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0727,
          "after": 0.0,
          "delta": -0.0727,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0012,
          "after": 0.0,
          "delta": -0.0012,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0564,
          "after": 3.0,
          "delta": -0.0564,
          "percent_delta": -0.0185,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4739,
          "after": 0.0,
          "delta": -0.4739,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6841,
          "after": 1.0,
          "delta": 0.3159,
          "percent_delta": 0.4618,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.007,
          "after": 0.0,
          "delta": -0.007,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1207,
          "after": 0.0,
          "delta": -0.1207,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4815,
          "after": 0.0,
          "delta": -0.4815,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0295,
          "after": 1.0,
          "delta": -0.0295,
          "percent_delta": -0.0287,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 1,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.6841,
          "after": 1.0,
          "delta": 0.3159,
          "percent_delta": 0.4618,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4815,
          "after": 0.0,
          "delta": -0.4815,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4636,
          "after": 0.0,
          "delta": -0.4636,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4636,
          "after": 0.0,
          "delta": -0.4636,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2238,
          "after": 0.333,
          "delta": 0.1092,
          "percent_delta": 0.4879,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.328,
          "after": 0.333,
          "delta": 0.005,
          "percent_delta": 0.0152,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3669,
          "after": 0.333,
          "delta": -0.0339,
          "percent_delta": -0.0924,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2238,
          "after": 0.333,
          "delta": 0.1092,
          "percent_delta": 0.4879,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3669,
          "after": 0.333,
          "delta": -0.0339,
          "percent_delta": -0.0924,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2238,
        "predicted_BB": 1.0,
        "predicted_C": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.328,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3669,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2238,
          "delta": -0.1092,
          "percent_delta": -0.3278,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.328,
          "delta": -0.005,
          "percent_delta": -0.0149,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3669,
          "delta": 0.0339,
          "percent_delta": 0.1017,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3669,
          "delta": 0.0339,
          "percent_delta": 0.1017,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2238,
          "delta": -0.1092,
          "percent_delta": -0.3278,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.065,
        "after": 0.0,
        "delta": -0.065,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.903,
        "after": 3.0,
        "delta": 0.097,
        "percent_delta": 0.0334,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.253,
        "after": 0.2238,
        "delta": -0.0292,
        "percent_delta": -0.1154,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.516,
        "after": 1.0,
        "delta": 0.484,
        "percent_delta": 0.938,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.64,
        "after": 0.0,
        "delta": -0.64,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.11,
        "after": 0.0,
        "delta": -0.11,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.311,
        "after": 0.328,
        "delta": 0.017,
        "percent_delta": 0.0547,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.452,
        "after": 0.0,
        "delta": -0.452,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.43,
        "after": 0.0,
        "delta": -0.43,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.377,
        "after": 0.3669,
        "delta": -0.0101,
        "percent_delta": -0.0268,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.032,
        "after": 1.0,
        "delta": -0.032,
        "percent_delta": -0.031,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 3,
      "deboosted_metrics": 7,
      "better_metrics": 3,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.516,
        "after": 1.0,
        "delta": 0.484,
        "percent_delta": 0.938,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.64,
        "after": 0.0,
        "delta": -0.64,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.065-
predicted_3B0.000-
predicted_AB2.903-
predicted_AVG0.253-
predicted_BB0.516-
predicted_H0.640-
predicted_HR0.110-
predicted_OBP0.311-
predicted_R0.452-
predicted_RBI0.430-
predicted_SLG0.377-
predicted_SO1.032-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.0730.008
predicted_3B0.0010.001
predicted_AB3.0560.153
predicted_AVG0.242-0.011
predicted_BB0.473-0.043
predicted_H0.6790.039
predicted_HBP0.007-
predicted_HR0.1200.010
predicted_OBP0.311-0.000
predicted_R0.4580.006
predicted_RBI0.4750.045
predicted_SLG0.376-0.001
predicted_SO1.0320.000
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0730.000
predicted_3B0.0010.000
predicted_AB3.0560.000
predicted_AVG0.224-0.018
predicted_BB0.4740.001
predicted_H0.6840.005
predicted_HBP0.0070.000
predicted_HR0.1210.001
predicted_OBP0.3280.017
predicted_R0.4640.006
predicted_RBI0.4810.006
predicted_SLG0.367-0.009
predicted_SO1.030-0.002
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.06), rates preserved: AVG=0.224 HR/AB=0.039

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.073
predicted_3B0.000-0.001
predicted_AB3.000-0.056
predicted_AVG0.3330.109
predicted_BB0.000-0.474
predicted_H1.0000.316
predicted_HR0.000-0.121
predicted_OBP0.3330.005
predicted_R0.000-0.464
predicted_RBI0.000-0.481
predicted_SLG0.333-0.034
predicted_SO1.000-0.030
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 31
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0004.0000.0000.0001.0005.0002.0001.0006.0000.22220.26320.38890.22220.05560.27780.05560.3333
last_100.2010-34.0009.0001.0000.0002.0008.0005.0003.00010.0000.26470.32430.47060.26470.05880.23530.08820.2941
season0.6031-90.00018.0002.0000.0003.00011.00014.00016.00032.0000.20000.32080.32220.20000.03330.12220.17780.3556
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0850
predicted_3B0.0030
predicted_AB3.3010
predicted_AVG0.2247
predicted_BB0.4040
predicted_H0.7420
predicted_HBP0.0070
predicted_HR0.1350
predicted_OBP0.3107
predicted_R0.4670
predicted_RBI0.5480
predicted_SLG0.3750
predicted_SO1.0320
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.06500.08500.0727model_form_blend
predicted_3B0.00000.00300.0012model_form_blend
predicted_AB2.90303.30103.0564model_form_blend
predicted_AVG0.25300.22470.2421model_form_blend
predicted_BB0.51600.40400.4728model_form_blend
predicted_H0.64000.74200.6793model_form_blend
predicted_HBP-0.00700.0070form_only
predicted_HR0.11000.13500.1196model_form_blend
predicted_OBP0.31100.31070.3109model_form_blend
predicted_R0.45200.46700.4578model_form_blend
predicted_RBI0.43000.54800.4755model_form_blend
predicted_SLG0.37700.37500.3762model_form_blend
predicted_SO1.03201.03201.0320model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date94
Season rows before report date94
Report year2026
Profile rows used31
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO1
SF0
HBP0
season_avg0.2

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E1
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.5
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB2
Hitting_battingOrder8
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedC
gameID20260613_SEA@WAS
game_typefull
mlbID641598
playerID641598
playerNameMitch Garver
posC
startedTrue
startingPositionC
teamSEA
teamID25
game_date2026-06-13
sl_k_percent29.9
sl_bb_percent15.9
sl_woba0.301
sl_xwoba0.301
sl_xba0.192
sl_xslg0.336
sl_sweet_spot_percent22.4
sl_barrel_batted_rate6.9
sl_hard_hit_percent48.3
sl_exit_velocity_avg89.6
sl_launch_angle_avg18.3
sl_whiff_percent34.4
sl_swing_percent42.2
Cole Young (702284) · BATTER · 2B · Team SEA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 242
All-history rows before 20260618: 242
System season_avg: 0.2560
Data season_avg (2026 season-to-date): 0.2468
Diff (system - data): 0.0092
System opponent_avg: 0.2310

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1330.0000.000Hitting_2B0.1610.000-0.1610.000
predicted_3B0.0130.0000.000Hitting_3B0.0170.000-0.0170.000
predicted_AB3.8203.0004.000Hitting_AB3.5834.000-0.583-1.000
predicted_AVG0.2480.3330.250Hitting_AVG0.2470.2500.0870.083
predicted_BB0.2671.0000.000Hitting_BB0.3310.0000.6691.000
predicted_CS-0.0000.000BaseRunning_CS0.0410.000-0.0410.000
predicted_H0.9501.0001.000Hitting_H0.8841.0000.1160.000
predicted_HR0.1200.0000.000Hitting_HR0.0661.000-0.066-1.000
predicted_OBP0.3060.5000.250Hitting_OBP0.3210.2500.1790.250
predicted_R0.4270.0000.000Hitting_R0.4831.000-0.483-1.000
predicted_RBI0.4100.0000.000Hitting_RBI0.4671.000-0.467-1.000
predicted_SB-0.0000.000BaseRunning_SB0.0330.000-0.0330.000
predicted_SLG0.3930.3330.250Hitting_SLG0.3561.000-0.023-0.667
predicted_SO0.7471.0001.000Hitting_SO0.8310.0000.1691.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics4
Deboosted Metrics6
Better Metrics3
Worse Metrics7
Biggest Boostpredicted_BB: 0.2670 -> 1.0000 (boost 0.7330, better)
Biggest Deboostpredicted_AB: 3.8200 -> 3.0000 (deboost -0.8200, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend22020predicted_AB: 3.8200 -> 3.8772 (boost 0.0572, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_OBP: 0.3052 -> 0.2996 (deboost -0.0056, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_SO: 0.7114 -> 1.0000 (boost 0.2886, worse)predicted_RBI: 0.4062 -> 0.0000 (deboost -0.4062, worse)AB rounded to 4 (raw=3.88), rates preserved: AVG=0.257 HR/AB=0.032
5consistency_constraints10101-predicted_R: 0.4538 -> 0.0000 (deboost -0.4538, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.3887 -> 0.2500 (deboost -0.1387, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21111predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2500 -> 0.3887 (boost 0.1387, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "702284",
  "player_name": "Cole Young",
  "position": "2B",
  "team": "SEA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.133,
        "predicted_3B": 0.013,
        "predicted_AB": 3.82,
        "predicted_AVG": 0.248,
        "predicted_BB": 0.267,
        "predicted_H": 0.95,
        "predicted_HR": 0.12,
        "predicted_OBP": 0.306,
        "predicted_R": 0.427,
        "predicted_RBI": 0.41,
        "predicted_SLG": 0.393,
        "predicted_SO": 0.747
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1178,
        "predicted_3B": 0.0113,
        "predicted_AB": 3.8772,
        "predicted_AVG": 0.2551,
        "predicted_BB": 0.2327,
        "predicted_H": 0.9911,
        "predicted_HBP": 0.051,
        "predicted_HR": 0.1217,
        "predicted_OBP": 0.3052,
        "predicted_R": 0.4482,
        "predicted_RBI": 0.4011,
        "predicted_SLG": 0.391,
        "predicted_SO": 0.7131
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.133,
          "after": 0.1178,
          "delta": -0.0152,
          "percent_delta": -0.1143,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.013,
          "after": 0.0113,
          "delta": -0.0017,
          "percent_delta": -0.1308,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.82,
          "after": 3.8772,
          "delta": 0.0572,
          "percent_delta": 0.015,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.248,
          "after": 0.2551,
          "delta": 0.0071,
          "percent_delta": 0.0286,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.267,
          "after": 0.2327,
          "delta": -0.0343,
          "percent_delta": -0.1285,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.95,
          "after": 0.9911,
          "delta": 0.0411,
          "percent_delta": 0.0433,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.12,
          "after": 0.1217,
          "delta": 0.0017,
          "percent_delta": 0.0142,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.306,
          "after": 0.3052,
          "delta": -0.0008,
          "percent_delta": -0.0026,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.427,
          "after": 0.4482,
          "delta": 0.0212,
          "percent_delta": 0.0496,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.41,
          "after": 0.4011,
          "delta": -0.0089,
          "percent_delta": -0.0217,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.393,
          "after": 0.391,
          "delta": -0.002,
          "percent_delta": -0.0051,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.747,
          "after": 0.7131,
          "delta": -0.0339,
          "percent_delta": -0.0454,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.82,
          "after": 3.8772,
          "delta": 0.0572,
          "percent_delta": 0.015,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 75
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1178,
        "predicted_3B": 0.0113,
        "predicted_AB": 3.8772,
        "predicted_AVG": 0.2574,
        "predicted_BB": 0.2333,
        "predicted_H": 0.9981,
        "predicted_HBP": 0.051,
        "predicted_HR": 0.1228,
        "predicted_OBP": 0.2996,
        "predicted_R": 0.4538,
        "predicted_RBI": 0.4062,
        "predicted_SLG": 0.3887,
        "predicted_SO": 0.7114
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1178,
          "after": 0.1178,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0113,
          "after": 0.0113,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8772,
          "after": 3.8772,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2551,
          "after": 0.2574,
          "delta": 0.0023,
          "percent_delta": 0.009,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2327,
          "after": 0.2333,
          "delta": 0.0006,
          "percent_delta": 0.0026,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9911,
          "after": 0.9981,
          "delta": 0.007,
          "percent_delta": 0.0071,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.051,
          "after": 0.051,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1217,
          "after": 0.1228,
          "delta": 0.0011,
          "percent_delta": 0.009,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3052,
          "after": 0.2996,
          "delta": -0.0056,
          "percent_delta": -0.0183,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4482,
          "after": 0.4538,
          "delta": 0.0056,
          "percent_delta": 0.0125,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4011,
          "after": 0.4062,
          "delta": 0.0051,
          "percent_delta": 0.0127,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.391,
          "after": 0.3887,
          "delta": -0.0023,
          "percent_delta": -0.0059,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.7131,
          "after": 0.7114,
          "delta": -0.0017,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3052,
          "after": 0.2996,
          "delta": -0.0056,
          "percent_delta": -0.0183,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.88), rates preserved: AVG=0.257 HR/AB=0.032",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1178,
          "after": 0.0,
          "delta": -0.1178,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0113,
          "after": 0.0,
          "delta": -0.0113,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8772,
          "after": 4.0,
          "delta": 0.1228,
          "percent_delta": 0.0317,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2333,
          "after": 0.0,
          "delta": -0.2333,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9981,
          "after": 1.0,
          "delta": 0.0019,
          "percent_delta": 0.0019,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.051,
          "after": 0.0,
          "delta": -0.051,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1228,
          "after": 0.0,
          "delta": -0.1228,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4062,
          "after": 0.0,
          "delta": -0.4062,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7114,
          "after": 1.0,
          "delta": 0.2886,
          "percent_delta": 0.4057,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.7114,
          "after": 1.0,
          "delta": 0.2886,
          "percent_delta": 0.4057,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4062,
          "after": 0.0,
          "delta": -0.4062,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4538,
          "after": 0.0,
          "delta": -0.4538,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4538,
          "after": 0.0,
          "delta": -0.4538,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2574,
          "after": 0.25,
          "delta": -0.0074,
          "percent_delta": -0.0287,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2996,
          "after": 0.25,
          "delta": -0.0496,
          "percent_delta": -0.1656,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3887,
          "after": 0.25,
          "delta": -0.1387,
          "percent_delta": -0.3568,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3887,
          "after": 0.25,
          "delta": -0.1387,
          "percent_delta": -0.3568,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2574,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2996,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3887,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2574,
          "delta": 0.0074,
          "percent_delta": 0.0298,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2996,
          "delta": 0.0496,
          "percent_delta": 0.1983,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3887,
          "delta": 0.1387,
          "percent_delta": 0.5547,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3887,
          "delta": 0.1387,
          "percent_delta": 0.5547,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.133,
        "after": 0.0,
        "delta": -0.133,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.013,
        "after": 0.0,
        "delta": -0.013,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.82,
        "after": 3.0,
        "delta": -0.82,
        "percent_delta": -0.2147,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.248,
        "after": 0.2574,
        "delta": 0.0094,
        "percent_delta": 0.0379,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.267,
        "after": 1.0,
        "delta": 0.733,
        "percent_delta": 2.7453,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.95,
        "after": 1.0,
        "delta": 0.05,
        "percent_delta": 0.0526,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.12,
        "after": 0.0,
        "delta": -0.12,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.306,
        "after": 0.2996,
        "delta": -0.0064,
        "percent_delta": -0.0209,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.427,
        "after": 0.0,
        "delta": -0.427,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.41,
        "after": 0.0,
        "delta": -0.41,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.393,
        "after": 0.3887,
        "delta": -0.0043,
        "percent_delta": -0.0109,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.747,
        "after": 1.0,
        "delta": 0.253,
        "percent_delta": 0.3387,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 4,
      "deboosted_metrics": 6,
      "better_metrics": 3,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.267,
        "after": 1.0,
        "delta": 0.733,
        "percent_delta": 2.7453,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 3.82,
        "after": 3.0,
        "delta": -0.82,
        "percent_delta": -0.2147,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.133-
predicted_3B0.013-
predicted_AB3.820-
predicted_AVG0.248-
predicted_BB0.267-
predicted_H0.950-
predicted_HR0.120-
predicted_OBP0.306-
predicted_R0.427-
predicted_RBI0.410-
predicted_SLG0.393-
predicted_SO0.747-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.118-0.015
predicted_3B0.011-0.002
predicted_AB3.8770.057
predicted_AVG0.2550.007
predicted_BB0.233-0.034
predicted_H0.9910.041
predicted_HBP0.051-
predicted_HR0.1220.002
predicted_OBP0.305-0.001
predicted_R0.4480.021
predicted_RBI0.401-0.009
predicted_SLG0.391-0.002
predicted_SO0.713-0.034
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1180.000
predicted_3B0.0110.000
predicted_AB3.8770.000
predicted_AVG0.2570.002
predicted_BB0.2330.001
predicted_H0.9980.007
predicted_HBP0.0510.000
predicted_HR0.1230.001
predicted_OBP0.300-0.006
predicted_R0.4540.006
predicted_RBI0.4060.005
predicted_SLG0.389-0.002
predicted_SO0.711-0.002
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.88), rates preserved: AVG=0.257 HR/AB=0.032

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.118
predicted_3B0.000-0.011
predicted_AB4.0000.123
predicted_AVG0.250-0.007
predicted_BB0.000-0.233
predicted_H1.0000.002
predicted_HR0.000-0.123
predicted_OBP0.250-0.050
predicted_R0.000-0.454
predicted_RBI0.000-0.406
predicted_SLG0.250-0.139
predicted_SO1.0000.289
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 75
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-22.0006.0000.0000.0001.0001.0003.0000.0002.0000.27270.27270.40910.27270.04540.04540.00000.0909
last_100.2010-45.00013.0000.0000.0002.0003.0005.0000.0005.0000.28890.28890.42220.28890.04440.06670.00000.1111
season0.6075-273.00070.00010.0001.0006.00033.00032.00020.00056.0000.25640.31790.36630.25640.02200.12090.07330.2051
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0970
predicted_3B0.0090
predicted_AB3.9550
predicted_AVG0.2647
predicted_BB0.1860
predicted_H1.0470
predicted_HBP0.0510
predicted_HR0.1240
predicted_OBP0.3040
predicted_R0.4770
predicted_RBI0.3890
predicted_SLG0.3882
predicted_SO0.6670
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.13300.09700.1178model_form_blend
predicted_3B0.01300.00900.0113model_form_blend
predicted_AB3.82003.95503.8772model_form_blend
predicted_AVG0.24800.26470.2551model_form_blend
predicted_BB0.26700.18600.2327model_form_blend
predicted_H0.95001.04700.9911model_form_blend
predicted_HBP-0.05100.0510form_only
predicted_HR0.12000.12400.1217model_form_blend
predicted_OBP0.30600.30400.3052model_form_blend
predicted_R0.42700.47700.4482model_form_blend
predicted_RBI0.41000.38900.4011model_form_blend
predicted_SLG0.39300.38820.3910model_form_blend
predicted_SO0.74700.66700.7131model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date242
Season rows before report date242
Report year2026
Profile rows used75
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B0
3B0
HR0
R0
RBI0
BB1
SO1
SF0
HBP0
season_avg0.256

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R1
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB4
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_BAL@SEA
game_typefull
mlbID702284
playerID702284
playerNameCole Young
pos2B
startedTrue
startingPosition2B
teamSEA
teamID25
game_date2026-06-17
sl_k_percent18.5
sl_bb_percent6.6
sl_woba0.306
sl_xwoba0.328
sl_xba0.274
sl_xslg0.412
sl_sweet_spot_percent35.7
sl_barrel_batted_rate5.4
sl_hard_hit_percent38.5
sl_exit_velocity_avg88.1
sl_launch_angle_avg16.2
sl_whiff_percent21.2
sl_swing_percent48.0
Victor Robles (645302) · BATTER · CF · Team SEA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 38
All-history rows before 20260618: 38
System season_avg: 0.2600
Data season_avg (2026 season-to-date): 0.2685
Diff (system - data): -0.0085
System opponent_avg: 0.2500

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1180.0000.000Hitting_2B0.1580.000-0.1580.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.9414.0003.000Hitting_AB2.8423.0001.1581.000
predicted_AVG0.2730.2500.333Hitting_AVG0.2690.000-0.0190.250
predicted_BB0.1180.0000.000Hitting_BB0.0531.000-0.053-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0790.000-0.0790.000
predicted_H0.5801.0001.000Hitting_H0.7630.0000.2371.000
predicted_HR0.0600.0000.000Hitting_HR0.0000.0000.0000.000
predicted_OBP0.2990.2500.333Hitting_OBP0.2820.250-0.0320.000
predicted_R0.2350.0000.000Hitting_R0.1580.000-0.1580.000
predicted_RBI0.2400.0000.000Hitting_RBI0.1050.000-0.1050.000
predicted_SLG0.3380.2500.333Hitting_SLG0.3240.000-0.0740.250
predicted_SO0.4120.0000.000Hitting_SO0.6321.000-0.632-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics2
Deboosted Metrics9
Better Metrics3
Worse Metrics8
Biggest Boostpredicted_AB: 2.9410 -> 4.0000 (boost 1.0590, better)
Biggest Deboostpredicted_SO: 0.4120 -> 0.0000 (deboost -0.4120, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend42222predicted_AB: 2.9410 -> 3.0751 (boost 0.1341, better)predicted_AVG: 0.2730 -> 0.2627 (deboost -0.0103, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_AVG: 0.2627 -> 0.2158 (deboost -0.0469, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71625predicted_H: 0.6636 -> 1.0000 (boost 0.3364, better)predicted_SO: 0.4459 -> 0.0000 (deboost -0.4459, better)AB rounded to 3 (raw=3.08), rates preserved: AVG=0.216 HR/AB=0.018
5consistency_constraints10101-predicted_R: 0.2790 -> 0.0000 (deboost -0.2790, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.2158 -> 0.3330 (boost 0.1172, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference11010predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.2158 (deboost -0.1172, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "645302",
  "player_name": "Victor Robles",
  "position": "CF",
  "team": "SEA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.118,
        "predicted_3B": 0.0,
        "predicted_AB": 2.941,
        "predicted_AVG": 0.273,
        "predicted_BB": 0.118,
        "predicted_H": 0.58,
        "predicted_HR": 0.06,
        "predicted_OBP": 0.299,
        "predicted_R": 0.235,
        "predicted_RBI": 0.24,
        "predicted_SLG": 0.338,
        "predicted_SO": 0.412
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1153,
        "predicted_3B": 0.0017,
        "predicted_AB": 3.0751,
        "predicted_AVG": 0.2627,
        "predicted_BB": 0.1544,
        "predicted_H": 0.6589,
        "predicted_HBP": 0.011,
        "predicted_HR": 0.0538,
        "predicted_OBP": 0.2974,
        "predicted_R": 0.2755,
        "predicted_RBI": 0.2349,
        "predicted_SLG": 0.3306,
        "predicted_SO": 0.447
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.118,
          "after": 0.1153,
          "delta": -0.0027,
          "percent_delta": -0.0229,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0017,
          "delta": 0.0017,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.941,
          "after": 3.0751,
          "delta": 0.1341,
          "percent_delta": 0.0456,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.273,
          "after": 0.2627,
          "delta": -0.0103,
          "percent_delta": -0.0377,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.118,
          "after": 0.1544,
          "delta": 0.0364,
          "percent_delta": 0.3085,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.58,
          "after": 0.6589,
          "delta": 0.0789,
          "percent_delta": 0.136,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.06,
          "after": 0.0538,
          "delta": -0.0062,
          "percent_delta": -0.1033,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.299,
          "after": 0.2974,
          "delta": -0.0016,
          "percent_delta": -0.0054,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.235,
          "after": 0.2755,
          "delta": 0.0405,
          "percent_delta": 0.1723,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.24,
          "after": 0.2349,
          "delta": -0.0051,
          "percent_delta": -0.0212,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.338,
          "after": 0.3306,
          "delta": -0.0074,
          "percent_delta": -0.0219,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.412,
          "after": 0.447,
          "delta": 0.035,
          "percent_delta": 0.085,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 2,
        "deboosted_metrics": 2,
        "better_metrics": 2,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.941,
          "after": 3.0751,
          "delta": 0.1341,
          "percent_delta": 0.0456,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.273,
          "after": 0.2627,
          "delta": -0.0103,
          "percent_delta": -0.0377,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 17
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1153,
        "predicted_3B": 0.0017,
        "predicted_AB": 3.0751,
        "predicted_AVG": 0.2158,
        "predicted_BB": 0.1548,
        "predicted_H": 0.6636,
        "predicted_HBP": 0.011,
        "predicted_HR": 0.0543,
        "predicted_OBP": 0.2534,
        "predicted_R": 0.279,
        "predicted_RBI": 0.2379,
        "predicted_SLG": 0.3073,
        "predicted_SO": 0.4459
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1153,
          "after": 0.1153,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0017,
          "after": 0.0017,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0751,
          "after": 3.0751,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2627,
          "after": 0.2158,
          "delta": -0.0469,
          "percent_delta": -0.1785,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1544,
          "after": 0.1548,
          "delta": 0.0004,
          "percent_delta": 0.0026,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6589,
          "after": 0.6636,
          "delta": 0.0047,
          "percent_delta": 0.0071,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.011,
          "after": 0.011,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0538,
          "after": 0.0543,
          "delta": 0.0005,
          "percent_delta": 0.0093,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2974,
          "after": 0.2534,
          "delta": -0.044,
          "percent_delta": -0.1479,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.2755,
          "after": 0.279,
          "delta": 0.0035,
          "percent_delta": 0.0127,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2349,
          "after": 0.2379,
          "delta": 0.003,
          "percent_delta": 0.0128,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3306,
          "after": 0.3073,
          "delta": -0.0233,
          "percent_delta": -0.0705,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.447,
          "after": 0.4459,
          "delta": -0.0011,
          "percent_delta": -0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2627,
          "after": 0.2158,
          "delta": -0.0469,
          "percent_delta": -0.1785,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.08), rates preserved: AVG=0.216 HR/AB=0.018",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1153,
          "after": 0.0,
          "delta": -0.1153,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0017,
          "after": 0.0,
          "delta": -0.0017,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0751,
          "after": 3.0,
          "delta": -0.0751,
          "percent_delta": -0.0244,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1548,
          "after": 0.0,
          "delta": -0.1548,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6636,
          "after": 1.0,
          "delta": 0.3364,
          "percent_delta": 0.5069,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.011,
          "after": 0.0,
          "delta": -0.011,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0543,
          "after": 0.0,
          "delta": -0.0543,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2379,
          "after": 0.0,
          "delta": -0.2379,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.4459,
          "after": 0.0,
          "delta": -0.4459,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.6636,
          "after": 1.0,
          "delta": 0.3364,
          "percent_delta": 0.5069,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 0.4459,
          "after": 0.0,
          "delta": -0.4459,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.279,
          "after": 0.0,
          "delta": -0.279,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.279,
          "after": 0.0,
          "delta": -0.279,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2158,
          "after": 0.333,
          "delta": 0.1172,
          "percent_delta": 0.5431,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2534,
          "after": 0.333,
          "delta": 0.0796,
          "percent_delta": 0.3141,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3073,
          "after": 0.333,
          "delta": 0.0257,
          "percent_delta": 0.0836,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2158,
          "after": 0.333,
          "delta": 0.1172,
          "percent_delta": 0.5431,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2158,
        "predicted_BB": 0.0,
        "predicted_CF": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2534,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3073,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2158,
          "delta": -0.1172,
          "percent_delta": -0.352,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2534,
          "delta": -0.0796,
          "percent_delta": -0.2391,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3073,
          "delta": -0.0257,
          "percent_delta": -0.077,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2158,
          "delta": -0.1172,
          "percent_delta": -0.352,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.118,
        "after": 0.0,
        "delta": -0.118,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.941,
        "after": 4.0,
        "delta": 1.059,
        "percent_delta": 0.3601,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.273,
        "after": 0.2158,
        "delta": -0.0572,
        "percent_delta": -0.2095,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.118,
        "after": 0.0,
        "delta": -0.118,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.58,
        "after": 1.0,
        "delta": 0.42,
        "percent_delta": 0.7241,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.06,
        "after": 0.0,
        "delta": -0.06,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.299,
        "after": 0.2534,
        "delta": -0.0456,
        "percent_delta": -0.1525,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.235,
        "after": 0.0,
        "delta": -0.235,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.24,
        "after": 0.0,
        "delta": -0.24,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.338,
        "after": 0.3073,
        "delta": -0.0307,
        "percent_delta": -0.0908,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.412,
        "after": 0.0,
        "delta": -0.412,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 2,
      "deboosted_metrics": 9,
      "better_metrics": 3,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 2.941,
        "after": 4.0,
        "delta": 1.059,
        "percent_delta": 0.3601,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.412,
        "after": 0.0,
        "delta": -0.412,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.118-
predicted_3B0.000-
predicted_AB2.941-
predicted_AVG0.273-
predicted_BB0.118-
predicted_H0.580-
predicted_HR0.060-
predicted_OBP0.299-
predicted_R0.235-
predicted_RBI0.240-
predicted_SLG0.338-
predicted_SO0.412-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.115-0.003
predicted_3B0.0020.002
predicted_AB3.0750.134
predicted_AVG0.263-0.010
predicted_BB0.1540.036
predicted_H0.6590.079
predicted_HBP0.011-
predicted_HR0.054-0.006
predicted_OBP0.297-0.002
predicted_R0.2760.041
predicted_RBI0.235-0.005
predicted_SLG0.331-0.007
predicted_SO0.4470.035
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1150.000
predicted_3B0.0020.000
predicted_AB3.0750.000
predicted_AVG0.216-0.047
predicted_BB0.1550.000
predicted_H0.6640.005
predicted_HBP0.0110.000
predicted_HR0.0540.001
predicted_OBP0.253-0.044
predicted_R0.2790.004
predicted_RBI0.2380.003
predicted_SLG0.307-0.023
predicted_SO0.446-0.001
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.08), rates preserved: AVG=0.216 HR/AB=0.018

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO0.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO0.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.115
predicted_3B0.000-0.002
predicted_AB3.000-0.075
predicted_AVG0.3330.117
predicted_BB0.000-0.155
predicted_H1.0000.336
predicted_HR0.000-0.054
predicted_OBP0.3330.080
predicted_R0.000-0.279
predicted_RBI0.000-0.238
predicted_SLG0.3330.026
predicted_SO0.000-0.446
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 17
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-16.0003.0000.0000.0000.0000.0002.0002.0001.0000.18750.27780.18750.18750.00000.00000.12500.0625
last_100.2010-31.0007.0000.0000.0000.0001.0003.0002.0003.0000.22580.27270.22580.22580.00000.03230.06450.0968
season0.6017-50.00013.0002.0000.0000.0002.0004.0002.0007.0000.26000.28850.30000.26000.00000.04000.04000.1400
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1100
predicted_3B0.0050
predicted_AB3.3320
predicted_AVG0.2430
predicted_BB0.2240
predicted_H0.8100
predicted_HBP0.0110
predicted_HR0.0420
predicted_OBP0.2943
predicted_R0.3530
predicted_RBI0.2250
predicted_SLG0.3165
predicted_SO0.5140
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.11800.11000.1153model_form_blend
predicted_3B0.00000.00500.0017model_form_blend
predicted_AB2.94103.33203.0751model_form_blend
predicted_AVG0.27300.24300.2627model_form_blend
predicted_BB0.11800.22400.1544model_form_blend
predicted_H0.58000.81000.6589model_form_blend
predicted_HBP-0.01100.0110form_only
predicted_HR0.06000.04200.0538model_form_blend
predicted_OBP0.29900.29430.2974model_form_blend
predicted_R0.23500.35300.2755model_form_blend
predicted_RBI0.24000.22500.2349model_form_blend
predicted_SLG0.33800.31650.3306model_form_blend
predicted_SO0.41200.51400.4470model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date38
Season rows before report date38
Report year2026
Profile rows used17
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.26

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists1
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.0
Hitting_BB1
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB0
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedRF-CF
gameID20260617_BAL@SEA
game_typefull
mlbID645302
playerID645302
playerNameVictor Robles
posRF
startedTrue
startingPositionRF
teamSEA
teamID25
game_date2026-06-17
sl_k_percent13.5
sl_bb_percent3.8
sl_woba0.265
sl_xwoba0.268
sl_xba0.232
sl_xslg0.351
sl_sweet_spot_percent18.6
sl_barrel_batted_rate4.7
sl_hard_hit_percent20.9
sl_exit_velocity_avg82.5
sl_launch_angle_avg6.6
sl_whiff_percent18.4
sl_swing_percent53.3
Colt Emerson (806068) · BATTER · SS · Team SEA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 48
All-history rows before 20260618: 48
System season_avg: 0.2290
Data season_avg (2026 season-to-date): 0.2675
Diff (system - data): -0.0385
System opponent_avg: 0.1000
System season_avg diverges from 2026 season-to-date by -0.0385. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2000.0000.000Hitting_2B0.2920.000-0.2920.000
predicted_3B0.0400.0000.000Hitting_3B0.0830.000-0.0830.000
predicted_AB3.3804.0003.000Hitting_AB3.2714.0000.7290.000
predicted_AVG0.2340.0000.333Hitting_AVG0.2680.000-0.2680.000
predicted_BB0.2400.0000.000Hitting_BB0.2920.000-0.2920.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.7900.0001.000Hitting_H0.8750.000-0.8750.000
predicted_HR0.1900.0000.000Hitting_HR0.1880.000-0.1880.000
predicted_OBP0.2880.0000.333Hitting_OBP0.3430.000-0.3430.000
predicted_R0.5200.0001.000Hitting_R0.5620.000-0.5620.000
predicted_RBI0.5200.0000.000Hitting_RBI0.6670.000-0.6670.000
predicted_SLG0.4550.0000.333Hitting_SLG0.5800.000-0.5800.000
predicted_SO1.0800.0001.000Hitting_SO0.8753.000-0.875-3.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics2
Deboosted Metrics8
Better Metrics3
Worse Metrics7
Biggest Boostpredicted_AB: 3.3800 -> 4.0000 (boost 0.6200, better)
Biggest Deboostpredicted_SO: 1.0800 -> 0.0000 (deboost -1.0800, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend22020predicted_AB: 3.3800 -> 3.4344 (boost 0.0544, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot11010predicted_SLG: 0.4694 -> 0.4917 (boost 0.0223, better)-Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling81726predicted_H: 0.7964 -> 1.0000 (boost 0.2036, better)predicted_RBI: 0.5541 -> 0.0000 (deboost -0.5541, worse)AB rounded to 3 (raw=3.43), rates preserved: AVG=0.232 HR/AB=0.062
5consistency_constraints11010predicted_R: 0.5350 -> 1.0000 (boost 0.4650, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2319 -> 0.3330 (boost 0.1011, better)predicted_SLG: 0.4917 -> 0.3330 (deboost -0.1587, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference41322predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.4917 (boost 0.1587, better)predicted_AVG: 0.3330 -> 0.2319 (deboost -0.1011, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "806068",
  "player_name": "Colt Emerson",
  "position": "SS",
  "team": "SEA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.2,
        "predicted_3B": 0.04,
        "predicted_AB": 3.38,
        "predicted_AVG": 0.234,
        "predicted_BB": 0.24,
        "predicted_H": 0.79,
        "predicted_HR": 0.19,
        "predicted_OBP": 0.288,
        "predicted_R": 0.52,
        "predicted_RBI": 0.52,
        "predicted_SLG": 0.455,
        "predicted_SO": 1.08
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1826,
        "predicted_3B": 0.0336,
        "predicted_AB": 3.4344,
        "predicted_AVG": 0.2305,
        "predicted_BB": 0.2238,
        "predicted_H": 0.7908,
        "predicted_HBP": 0.061,
        "predicted_HR": 0.2123,
        "predicted_OBP": 0.284,
        "predicted_R": 0.5283,
        "predicted_RBI": 0.5472,
        "predicted_SLG": 0.4694,
        "predicted_SO": 1.0645
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2,
          "after": 0.1826,
          "delta": -0.0174,
          "percent_delta": -0.087,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.04,
          "after": 0.0336,
          "delta": -0.0064,
          "percent_delta": -0.16,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.38,
          "after": 3.4344,
          "delta": 0.0544,
          "percent_delta": 0.0161,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.234,
          "after": 0.2305,
          "delta": -0.0035,
          "percent_delta": -0.015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.24,
          "after": 0.2238,
          "delta": -0.0162,
          "percent_delta": -0.0675,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.79,
          "after": 0.7908,
          "delta": 0.0008,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.19,
          "after": 0.2123,
          "delta": 0.0223,
          "percent_delta": 0.1174,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.288,
          "after": 0.284,
          "delta": -0.004,
          "percent_delta": -0.0139,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.52,
          "after": 0.5283,
          "delta": 0.0083,
          "percent_delta": 0.016,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.52,
          "after": 0.5472,
          "delta": 0.0272,
          "percent_delta": 0.0523,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.455,
          "after": 0.4694,
          "delta": 0.0144,
          "percent_delta": 0.0316,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.08,
          "after": 1.0645,
          "delta": -0.0155,
          "percent_delta": -0.0144,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.38,
          "after": 3.4344,
          "delta": 0.0544,
          "percent_delta": 0.0161,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 25
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1826,
        "predicted_3B": 0.0336,
        "predicted_AB": 3.4344,
        "predicted_AVG": 0.2319,
        "predicted_BB": 0.2243,
        "predicted_H": 0.7964,
        "predicted_HBP": 0.061,
        "predicted_HR": 0.2142,
        "predicted_OBP": 0.279,
        "predicted_R": 0.535,
        "predicted_RBI": 0.5541,
        "predicted_SLG": 0.4917,
        "predicted_SO": 1.0619
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1826,
          "after": 0.1826,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0336,
          "after": 0.0336,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4344,
          "after": 3.4344,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2305,
          "after": 0.2319,
          "delta": 0.0014,
          "percent_delta": 0.0061,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2238,
          "after": 0.2243,
          "delta": 0.0005,
          "percent_delta": 0.0022,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7908,
          "after": 0.7964,
          "delta": 0.0056,
          "percent_delta": 0.0071,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.061,
          "after": 0.061,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2123,
          "after": 0.2142,
          "delta": 0.0019,
          "percent_delta": 0.0089,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.284,
          "after": 0.279,
          "delta": -0.005,
          "percent_delta": -0.0176,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5283,
          "after": 0.535,
          "delta": 0.0067,
          "percent_delta": 0.0127,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5472,
          "after": 0.5541,
          "delta": 0.0069,
          "percent_delta": 0.0126,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4694,
          "after": 0.4917,
          "delta": 0.0223,
          "percent_delta": 0.0475,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0645,
          "after": 1.0619,
          "delta": -0.0026,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.4694,
          "after": 0.4917,
          "delta": 0.0223,
          "percent_delta": 0.0475,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.43), rates preserved: AVG=0.232 HR/AB=0.062",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1826,
          "after": 0.0,
          "delta": -0.1826,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0336,
          "after": 0.0,
          "delta": -0.0336,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4344,
          "after": 3.0,
          "delta": -0.4344,
          "percent_delta": -0.1265,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2243,
          "after": 0.0,
          "delta": -0.2243,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7964,
          "after": 1.0,
          "delta": 0.2036,
          "percent_delta": 0.2557,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.061,
          "after": 0.0,
          "delta": -0.061,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.2142,
          "after": 0.0,
          "delta": -0.2142,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5541,
          "after": 0.0,
          "delta": -0.5541,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0619,
          "after": 1.0,
          "delta": -0.0619,
          "percent_delta": -0.0583,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 1,
        "deboosted_metrics": 7,
        "better_metrics": 2,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.7964,
          "after": 1.0,
          "delta": 0.2036,
          "percent_delta": 0.2557,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.5541,
          "after": 0.0,
          "delta": -0.5541,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.535,
          "after": 1.0,
          "delta": 0.465,
          "percent_delta": 0.8692,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.535,
          "after": 1.0,
          "delta": 0.465,
          "percent_delta": 0.8692,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2319,
          "after": 0.333,
          "delta": 0.1011,
          "percent_delta": 0.436,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.279,
          "after": 0.333,
          "delta": 0.054,
          "percent_delta": 0.1935,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4917,
          "after": 0.333,
          "delta": -0.1587,
          "percent_delta": -0.3228,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2319,
          "after": 0.333,
          "delta": 0.1011,
          "percent_delta": 0.436,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4917,
          "after": 0.333,
          "delta": -0.1587,
          "percent_delta": -0.3228,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 1,
        "deboosted_metrics": 3,
        "better_metrics": 2,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2319,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.279,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4917,
        "predicted_SO": 0.0,
        "predicted_SS": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2319,
          "delta": -0.1011,
          "percent_delta": -0.3036,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.279,
          "delta": -0.054,
          "percent_delta": -0.1622,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4917,
          "delta": 0.1587,
          "percent_delta": 0.4767,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4917,
          "delta": 0.1587,
          "percent_delta": 0.4767,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2319,
          "delta": -0.1011,
          "percent_delta": -0.3036,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.2,
        "after": 0.0,
        "delta": -0.2,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.04,
        "after": 0.0,
        "delta": -0.04,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.38,
        "after": 4.0,
        "delta": 0.62,
        "percent_delta": 0.1834,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.234,
        "after": 0.2319,
        "delta": -0.0021,
        "percent_delta": -0.009,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.24,
        "after": 0.0,
        "delta": -0.24,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.79,
        "after": 0.0,
        "delta": -0.79,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.19,
        "after": 0.0,
        "delta": -0.19,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.288,
        "after": 0.279,
        "delta": -0.009,
        "percent_delta": -0.0312,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.52,
        "after": 0.0,
        "delta": -0.52,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.52,
        "after": 0.0,
        "delta": -0.52,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.455,
        "after": 0.4917,
        "delta": 0.0367,
        "percent_delta": 0.0807,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.08,
        "after": 0.0,
        "delta": -1.08,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 2,
      "deboosted_metrics": 8,
      "better_metrics": 3,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.38,
        "after": 4.0,
        "delta": 0.62,
        "percent_delta": 0.1834,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 1.08,
        "after": 0.0,
        "delta": -1.08,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.200-
predicted_3B0.040-
predicted_AB3.380-
predicted_AVG0.234-
predicted_BB0.240-
predicted_H0.790-
predicted_HR0.190-
predicted_OBP0.288-
predicted_R0.520-
predicted_RBI0.520-
predicted_SLG0.455-
predicted_SO1.080-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.183-0.017
predicted_3B0.034-0.006
predicted_AB3.4340.054
predicted_AVG0.231-0.004
predicted_BB0.224-0.016
predicted_H0.7910.001
predicted_HBP0.061-
predicted_HR0.2120.022
predicted_OBP0.284-0.004
predicted_R0.5280.008
predicted_RBI0.5470.027
predicted_SLG0.4690.014
predicted_SO1.065-0.016
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1830.000
predicted_3B0.0340.000
predicted_AB3.4340.000
predicted_AVG0.2320.001
predicted_BB0.2240.001
predicted_H0.7960.006
predicted_HBP0.0610.000
predicted_HR0.2140.002
predicted_OBP0.279-0.005
predicted_R0.5350.007
predicted_RBI0.5540.007
predicted_SLG0.4920.022
predicted_SO1.062-0.003
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.43), rates preserved: AVG=0.232 HR/AB=0.062

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.183
predicted_3B0.000-0.034
predicted_AB3.000-0.434
predicted_AVG0.3330.101
predicted_BB0.000-0.224
predicted_H1.0000.204
predicted_HR0.000-0.214
predicted_OBP0.3330.054
predicted_R1.0000.465
predicted_RBI0.000-0.554
predicted_SLG0.333-0.159
predicted_SO1.000-0.062
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 25
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0004.0000.0000.0002.0004.0003.0000.0005.0000.22220.22220.55560.22220.11110.22220.00000.2778
last_100.2010-35.0006.0001.0000.0003.0006.0006.0001.00012.0000.17140.21620.45710.17140.08570.17140.02860.3429
season0.6025-83.00019.0005.0001.0006.00014.00013.0006.00027.0000.22890.29670.53010.22890.07230.16870.07230.3253
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1540
predicted_3B0.0230
predicted_AB3.5240
predicted_AVG0.2246
predicted_BB0.1970
predicted_H0.7920
predicted_HBP0.0610
predicted_HR0.2490
predicted_OBP0.2775
predicted_R0.5420
predicted_RBI0.5920
predicted_SLG0.4931
predicted_SO1.0390
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.20000.15400.1826model_form_blend
predicted_3B0.04000.02300.0336model_form_blend
predicted_AB3.38003.52403.4344model_form_blend
predicted_AVG0.23400.22460.2305model_form_blend
predicted_BB0.24000.19700.2238model_form_blend
predicted_H0.79000.79200.7908model_form_blend
predicted_HBP-0.06100.0610form_only
predicted_HR0.19000.24900.2123model_form_blend
predicted_OBP0.28800.27750.2840model_form_blend
predicted_R0.52000.54200.5283model_form_blend
predicted_RBI0.52000.59200.5472model_form_blend
predicted_SLG0.45500.49310.4694model_form_blend
predicted_SO1.08001.03901.0645model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date48
Season rows before report date48
Report year2026
Profile rows used25
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.229

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO3
Hitting_TB0
Hitting_battingOrder7
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedSS
gameID20260617_BAL@SEA
game_typefull
mlbID806068
playerID806068
playerNameColt Emerson
posSS
startedTrue
startingPositionSS
teamSEA
teamID25
game_date2026-06-17
sl_k_percent29.7
sl_bb_percent6.6
sl_woba0.354
sl_xwoba0.23
sl_xba0.163
sl_xslg0.268
sl_sweet_spot_percent35.7
sl_barrel_batted_rate5.4
sl_hard_hit_percent28.6
sl_exit_velocity_avg86.7
sl_launch_angle_avg16.5
sl_whiff_percent31.6
sl_swing_percent50.4
Miles Mastrobuoni (670156) · BATTER · LF · Team SEA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 7
All-history rows before 20260618: 7
System season_avg: 0.2000
Data season_avg (2026 season-to-date): 0.2000
Diff (system - data): 0.0000
System opponent_avg: 0.2730

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0000.0000.000Hitting_2B0.0000.0000.0000.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.8573.0003.000Hitting_AB2.8573.0000.1430.000
predicted_AVG0.2430.6670.333Hitting_AVG0.2000.3330.4670.333
predicted_BB0.2861.0000.000Hitting_BB0.2860.0000.7141.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.6202.0001.000Hitting_H0.5711.0001.4291.000
predicted_HR0.0700.0000.000Hitting_HR0.0000.0000.0000.000
predicted_OBP0.2940.7500.333Hitting_OBP0.2610.3330.4890.417
predicted_R0.4291.0000.000Hitting_R0.4290.0000.5711.000
predicted_RBI0.3300.0000.000Hitting_RBI0.1430.000-0.1430.000
predicted_SLG0.3230.6670.333Hitting_SLG0.2000.3330.4670.333
predicted_SO1.2861.0001.000Hitting_SO1.2862.000-0.286-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics9
Boosted Metrics4
Deboosted Metrics5
Better Metrics5
Worse Metrics4
Biggest Boostpredicted_H: 0.6200 -> 2.0000 (boost 1.3800, better)
Biggest Deboostpredicted_RBI: 0.3300 -> 0.0000 (deboost -0.3300, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend41322predicted_AB: 2.8570 -> 2.9967 (boost 0.1397, better)predicted_SO: 1.2860 -> 1.2285 (deboost -0.0575, better)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_SLG: 0.3177 -> 0.2971 (deboost -0.0206, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling51423predicted_H: 0.6522 -> 1.0000 (boost 0.3478, better)predicted_RBI: 0.3399 -> 0.0000 (deboost -0.3399, worse)AB rounded to 3 (raw=3.00), rates preserved: AVG=0.218 HR/AB=0.023
5consistency_constraints10101-predicted_R: 0.4456 -> 0.0000 (deboost -0.4456, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.2176 -> 0.3330 (boost 0.1154, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference33030predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.2176 (deboost -0.1154, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "670156",
  "player_name": "Miles Mastrobuoni",
  "position": "LF",
  "team": "SEA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 2.857,
        "predicted_AVG": 0.243,
        "predicted_BB": 0.286,
        "predicted_H": 0.62,
        "predicted_HR": 0.07,
        "predicted_OBP": 0.294,
        "predicted_R": 0.429,
        "predicted_RBI": 0.33,
        "predicted_SLG": 0.323,
        "predicted_SO": 1.286
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0265,
        "predicted_3B": 0.002,
        "predicted_AB": 2.9967,
        "predicted_AVG": 0.2348,
        "predicted_BB": 0.3034,
        "predicted_H": 0.6476,
        "predicted_HBP": 0.017,
        "predicted_HR": 0.0686,
        "predicted_OBP": 0.2921,
        "predicted_R": 0.4401,
        "predicted_RBI": 0.3357,
        "predicted_SLG": 0.3177,
        "predicted_SO": 1.2285
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0265,
          "delta": 0.0265,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.002,
          "delta": 0.002,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.857,
          "after": 2.9967,
          "delta": 0.1397,
          "percent_delta": 0.0489,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.243,
          "after": 0.2348,
          "delta": -0.0082,
          "percent_delta": -0.0337,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.286,
          "after": 0.3034,
          "delta": 0.0174,
          "percent_delta": 0.0608,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.62,
          "after": 0.6476,
          "delta": 0.0276,
          "percent_delta": 0.0445,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.07,
          "after": 0.0686,
          "delta": -0.0014,
          "percent_delta": -0.02,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.294,
          "after": 0.2921,
          "delta": -0.0019,
          "percent_delta": -0.0065,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.429,
          "after": 0.4401,
          "delta": 0.0111,
          "percent_delta": 0.0259,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.33,
          "after": 0.3357,
          "delta": 0.0057,
          "percent_delta": 0.0173,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.323,
          "after": 0.3177,
          "delta": -0.0053,
          "percent_delta": -0.0164,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.286,
          "after": 1.2285,
          "delta": -0.0575,
          "percent_delta": -0.0447,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 1,
        "deboosted_metrics": 3,
        "better_metrics": 2,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.857,
          "after": 2.9967,
          "delta": 0.1397,
          "percent_delta": 0.0489,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.286,
          "after": 1.2285,
          "delta": -0.0575,
          "percent_delta": -0.0447,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 7,
        "season": 7
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0265,
        "predicted_3B": 0.002,
        "predicted_AB": 2.9967,
        "predicted_AVG": 0.2176,
        "predicted_BB": 0.3041,
        "predicted_H": 0.6522,
        "predicted_HBP": 0.017,
        "predicted_HR": 0.0692,
        "predicted_OBP": 0.2897,
        "predicted_R": 0.4456,
        "predicted_RBI": 0.3399,
        "predicted_SLG": 0.2971,
        "predicted_SO": 1.2256
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0265,
          "after": 0.0265,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.002,
          "after": 0.002,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9967,
          "after": 2.9967,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2348,
          "after": 0.2176,
          "delta": -0.0172,
          "percent_delta": -0.0733,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3034,
          "after": 0.3041,
          "delta": 0.0007,
          "percent_delta": 0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6476,
          "after": 0.6522,
          "delta": 0.0046,
          "percent_delta": 0.0071,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.017,
          "after": 0.017,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0686,
          "after": 0.0692,
          "delta": 0.0006,
          "percent_delta": 0.0087,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2921,
          "after": 0.2897,
          "delta": -0.0024,
          "percent_delta": -0.0082,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4401,
          "after": 0.4456,
          "delta": 0.0055,
          "percent_delta": 0.0125,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3357,
          "after": 0.3399,
          "delta": 0.0042,
          "percent_delta": 0.0125,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3177,
          "after": 0.2971,
          "delta": -0.0206,
          "percent_delta": -0.0648,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.2285,
          "after": 1.2256,
          "delta": -0.0029,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3177,
          "after": 0.2971,
          "delta": -0.0206,
          "percent_delta": -0.0648,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.00), rates preserved: AVG=0.218 HR/AB=0.023",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0265,
          "after": 0.0,
          "delta": -0.0265,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.002,
          "after": 0.0,
          "delta": -0.002,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9967,
          "after": 3.0,
          "delta": 0.0033,
          "percent_delta": 0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3041,
          "after": 0.0,
          "delta": -0.3041,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6522,
          "after": 1.0,
          "delta": 0.3478,
          "percent_delta": 0.5333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.017,
          "after": 0.0,
          "delta": -0.017,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0692,
          "after": 0.0,
          "delta": -0.0692,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3399,
          "after": 0.0,
          "delta": -0.3399,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.2256,
          "after": 1.0,
          "delta": -0.2256,
          "percent_delta": -0.1841,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 1,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.6522,
          "after": 1.0,
          "delta": 0.3478,
          "percent_delta": 0.5333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3399,
          "after": 0.0,
          "delta": -0.3399,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4456,
          "after": 0.0,
          "delta": -0.4456,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4456,
          "after": 0.0,
          "delta": -0.4456,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2176,
          "after": 0.333,
          "delta": 0.1154,
          "percent_delta": 0.5303,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2897,
          "after": 0.333,
          "delta": 0.0433,
          "percent_delta": 0.1495,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2971,
          "after": 0.333,
          "delta": 0.0359,
          "percent_delta": 0.1208,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2176,
          "after": 0.333,
          "delta": 0.1154,
          "percent_delta": 0.5303,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2176,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_LF": 0.0,
        "predicted_OBP": 0.2897,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.2971,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2176,
          "delta": -0.1154,
          "percent_delta": -0.3464,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2897,
          "delta": -0.0433,
          "percent_delta": -0.13,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.2971,
          "delta": -0.0359,
          "percent_delta": -0.1078,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2176,
          "delta": -0.1154,
          "percent_delta": -0.3464,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.857,
        "after": 3.0,
        "delta": 0.143,
        "percent_delta": 0.0501,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.243,
        "after": 0.2176,
        "delta": -0.0254,
        "percent_delta": -0.1045,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.286,
        "after": 1.0,
        "delta": 0.714,
        "percent_delta": 2.4965,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.62,
        "after": 2.0,
        "delta": 1.38,
        "percent_delta": 2.2258,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.07,
        "after": 0.0,
        "delta": -0.07,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.294,
        "after": 0.2897,
        "delta": -0.0043,
        "percent_delta": -0.0146,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.429,
        "after": 1.0,
        "delta": 0.571,
        "percent_delta": 1.331,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.33,
        "after": 0.0,
        "delta": -0.33,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.323,
        "after": 0.2971,
        "delta": -0.0259,
        "percent_delta": -0.0802,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.286,
        "after": 1.0,
        "delta": -0.286,
        "percent_delta": -0.2224,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 4,
      "deboosted_metrics": 5,
      "better_metrics": 5,
      "worse_metrics": 4,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 0.62,
        "after": 2.0,
        "delta": 1.38,
        "percent_delta": 2.2258,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.33,
        "after": 0.0,
        "delta": -0.33,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.000-
predicted_3B0.000-
predicted_AB2.857-
predicted_AVG0.243-
predicted_BB0.286-
predicted_H0.620-
predicted_HR0.070-
predicted_OBP0.294-
predicted_R0.429-
predicted_RBI0.330-
predicted_SLG0.323-
predicted_SO1.286-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.0260.026
predicted_3B0.0020.002
predicted_AB2.9970.140
predicted_AVG0.235-0.008
predicted_BB0.3030.017
predicted_H0.6480.028
predicted_HBP0.017-
predicted_HR0.069-0.001
predicted_OBP0.292-0.002
predicted_R0.4400.011
predicted_RBI0.3360.006
predicted_SLG0.318-0.005
predicted_SO1.228-0.058
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0260.000
predicted_3B0.0020.000
predicted_AB2.9970.000
predicted_AVG0.218-0.017
predicted_BB0.3040.001
predicted_H0.6520.005
predicted_HBP0.0170.000
predicted_HR0.0690.001
predicted_OBP0.290-0.002
predicted_R0.4460.006
predicted_RBI0.3400.004
predicted_SLG0.297-0.021
predicted_SO1.226-0.003
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.00), rates preserved: AVG=0.218 HR/AB=0.023

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.026
predicted_3B0.000-0.002
predicted_AB3.0000.003
predicted_AVG0.3330.115
predicted_BB0.000-0.304
predicted_H1.0000.348
predicted_HR0.000-0.069
predicted_OBP0.3330.043
predicted_R0.000-0.446
predicted_RBI0.000-0.340
predicted_SLG0.3330.036
predicted_SO1.000-0.226
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 7
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-13.0002.0000.0000.0000.0001.0002.0002.0006.0000.15380.25000.15380.15380.00000.07690.15380.4615
last_100.207-20.0004.0000.0000.0000.0001.0003.0002.0009.0000.20000.26090.20000.20000.00000.05000.10000.4500
season0.607-20.0004.0000.0000.0000.0001.0003.0002.0009.0000.20000.26090.20000.20000.00000.05000.10000.4500
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0930
predicted_3B0.0070
predicted_AB3.3480
predicted_AVG0.2143
predicted_BB0.3470
predicted_H0.7170
predicted_HBP0.0170
predicted_HR0.0650
predicted_OBP0.2872
predicted_R0.4680
predicted_RBI0.3500
predicted_SLG0.3044
predicted_SO1.0840
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.00000.09300.0265model_form_blend
predicted_3B0.00000.00700.0020model_form_blend
predicted_AB2.85703.34802.9967model_form_blend
predicted_AVG0.24300.21430.2348model_form_blend
predicted_BB0.28600.34700.3034model_form_blend
predicted_H0.62000.71700.6476model_form_blend
predicted_HBP-0.01700.0170form_only
predicted_HR0.07000.06500.0686model_form_blend
predicted_OBP0.29400.28720.2921model_form_blend
predicted_R0.42900.46800.4401model_form_blend
predicted_RBI0.33000.35000.3357model_form_blend
predicted_SLG0.32300.30440.3177model_form_blend
predicted_SO1.28601.08401.2285model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date7
Season rows before report date7
Report year2026
Profile rows used7
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H2
2B0
3B0
HR0
R1
RBI0
BB1
SO1
SF0
HBP0
season_avg0.2

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB1
Hitting_battingOrder9
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B
gameID20260617_BAL@SEA
game_typefull
mlbID670156
playerID670156
playerNameMiles Mastrobuoni
pos3B
startedTrue
startingPosition1B
teamSEA
teamID25
game_date2026-06-17
sl_k_percent37.5
sl_bb_percent8.3
sl_woba0.216
sl_xwoba0.191
sl_xba0.144
sl_xslg0.195
sl_sweet_spot_percent23.1
sl_barrel_batted_rate0.0
sl_hard_hit_percent23.1
sl_exit_velocity_avg90.2
sl_launch_angle_avg10.0
sl_whiff_percent23.5
sl_swing_percent37.8
Bryan Woo (693433) · PITCHER · Starter · Team SEA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 14
All-history rows before 20260618: 14

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB2.0002.0002.000Pitching_BB1.0711.0000.9291.000
predicted_ER1.0001.0001.000Pitching_ER2.7867.000-1.786-6.000
predicted_H2.0002.0002.000Pitching_H5.0007.000-3.000-5.000
predicted_IP5.2005.2005.200Pitching_InningsPitched5.8075.000-0.6070.200
predicted_SO6.0006.0006.000Pitching_SO5.6434.0000.3572.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics2
Boosted Metrics1
Deboosted Metrics1
Better Metrics1
Worse Metrics1
Biggest Boostpredicted_SO: 5.0000 -> 6.0000 (boost 1.0000, better)
Biggest Deboostpredicted_IP: 5.6667 -> 5.2000 (deboost -0.4667, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2pitcher_quality_guardrail21111predicted_SO: 5.0000 -> 6.0000 (boost 1.0000, better)predicted_IP: 5.6667 -> 5.2000 (deboost -0.4667, worse)Elite/strong starter guardrail capped a noisy simulation draw using season workload, ERA/WHIP, and weighted recent form.
3current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "693433",
  "player_name": "Bryan Woo",
  "position": "Starter",
  "team": "SEA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 1.0,
        "predicted_H": 2.0,
        "predicted_HR": 0.0,
        "predicted_IP": 5.6667,
        "predicted_SO": 5.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "pitcher_quality_guardrail",
      "description": "Elite/strong starter guardrail capped a noisy simulation draw using season workload, ERA/WHIP, and weighted recent form.",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 1.0,
        "predicted_H": 2.0,
        "predicted_HR": 0.0,
        "predicted_IP": 5.2,
        "predicted_SO": 6.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.6667,
          "after": 5.2,
          "delta": -0.4667,
          "percent_delta": -0.0824,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 5.0,
          "after": 6.0,
          "delta": 1.0,
          "percent_delta": 0.2,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 5.0,
          "after": 6.0,
          "delta": 1.0,
          "percent_delta": 0.2,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 5.6667,
          "after": 5.2,
          "delta": -0.4667,
          "percent_delta": -0.0824,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 3,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 1.0,
        "predicted_H": 2.0,
        "predicted_HR": 0.0,
        "predicted_IP": 5.2,
        "predicted_R": 1.0,
        "predicted_SO": 6.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.2,
          "after": 5.2,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 6.0,
          "after": 6.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 5.6667,
        "after": 5.2,
        "delta": -0.4667,
        "percent_delta": -0.0824,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 5.0,
        "after": 6.0,
        "delta": 1.0,
        "percent_delta": 0.2,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 2,
      "boosted_metrics": 1,
      "deboosted_metrics": 1,
      "better_metrics": 1,
      "worse_metrics": 1,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 5.0,
        "after": 6.0,
        "delta": 1.0,
        "percent_delta": 0.2,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 5.6667,
        "after": 5.2,
        "delta": -0.4667,
        "percent_delta": -0.0824,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB2.000-
predicted_ER1.000-
predicted_H2.000-
predicted_HR0.000-
predicted_IP5.667-
predicted_SO5.000-
2. pitcher_quality_guardrail

Elite/strong starter guardrail capped a noisy simulation draw using season workload, ERA/WHIP, and weighted recent form.

MetricValueDelta vs Prev Step
predicted_BB2.0000.000
predicted_ER1.0000.000
predicted_H2.0000.000
predicted_HR0.0000.000
predicted_IP5.200-0.467
predicted_SO6.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 14
Reference playing time: 5.667
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.45529.00016.00027.0005.00032.0003.0004.96551.10340.55170.93100.17241.10350.1035
last_100.351057.00033.00052.00010.00059.0009.0005.21051.08770.57890.91230.17541.03510.1579
season0.201482.00039.00070.00015.00079.0009.0004.28051.03660.47560.85370.18290.96340.1098
Weighted Prediction From Real Data
MetricValue
predicted_BB1.2860
predicted_ER3.0530
predicted_ERA4.8074
predicted_H5.2930
predicted_HR0.7410
predicted_IP5.2000
predicted_SO5.8390
predicted_WHIP1.1510
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB2.00001.28601.6153model_form_blend
predicted_ER1.00003.05302.1062model_form_blend
predicted_ERA-4.80744.8074form_only
predicted_H2.00005.29303.7743model_form_blend
predicted_HR0.00000.74100.3992model_form_blend
predicted_IP5.20005.20005.2000model_form_blend
predicted_SO5.00005.83905.4521model_form_blend
predicted_WHIP-1.15101.1510form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date14
Season rows before report date14
Report year2026
Profile rows used14
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP5.2
H2
R1
ER1
BB2
SO6
HR0
BF22
Pitches97

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced23
Pitching_ER7
Pitching_ERA4.28
Pitching_Flyouts4
Pitching_Groundouts4
Pitching_H7
Pitching_HBP1
Pitching_HR2
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched5.0
Pitching_Pitches82
Pitching_R7
Pitching_SO4
Pitching_Strikes53
Pitching_Wild Pitch1
Pitching_decisionL
Pitching_pitchingOrder1
allPositionsPlayedP
gameID20260611_SEA@BAL
game_typefull
mlbID693433
playerID693433
playerNameBryan Woo
posP
startedTrue
startingPositionP
teamSEA
teamID25
game_date2026-06-11
sl_k_percent24.0
sl_bb_percent4.6
sl_woba0.273
sl_xwoba0.286
sl_sweet_spot_percent32.3
sl_barrel_batted_rate7.3
sl_hard_hit_percent44.4
sl_whiff_percent24.2
sl_swing_percent54.0
sl_avg_best_speed78.783229483
sl_avg_hyper_speed94.570005714
Andrés Muñoz (662253) · PITCHER · Middle Reliever · Team SEA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 28
All-history rows before 20260618: 28

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.3930.000-0.3930.000
predicted_ER0.0000.0000.000Pitching_ER0.5710.000-0.5710.000
predicted_H0.0000.0000.000Pitching_H0.8931.000-0.893-1.000
predicted_IP1.1001.1001.100Pitching_InningsPitched0.8461.0000.2540.100
predicted_SO0.0000.0000.000Pitching_SO1.3571.000-1.357-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final11010predicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "662253",
  "player_name": "Andrés Muñoz",
  "position": "Middle Reliever",
  "team": "SEA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.1,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 27
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.2003.0004.0003.0005.0000.0005.78571.50000.64290.85710.64291.07140.0000
last_100.35109.1004.0009.0003.00012.0001.0003.85711.28570.42860.96430.32141.28570.1071
season0.202725.10014.00024.00010.00038.0004.0004.97371.34210.55260.94740.39471.50000.1579
Weighted Prediction From Real Data
MetricValue
predicted_BB0.4220
predicted_ER0.5250
predicted_ERA4.7289
predicted_H0.9430
predicted_HR0.1070
predicted_IP1.0000
predicted_SO1.0850
predicted_WHIP1.3654
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.42200.1854model_form_blend
predicted_ER0.00000.52500.2307model_form_blend
predicted_ERA-4.72894.7289form_only
predicted_H0.00000.94300.4143model_form_blend
predicted_HR0.00000.10700.0470model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00001.08500.4767model_form_blend
predicted_WHIP-1.36541.3654form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date28
Season rows before report date28
Report year2026
Profile rows used27
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.1
H0
R0
ER0
BB0
SO0
HR0
BF4
Pitches17

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER0
Pitching_ERA5.68
Pitching_Flyouts0
Pitching_Groundouts2
Pitching_H1
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches17
Pitching_R0
Pitching_SO1
Pitching_Strikes13
Pitching_Wild Pitch0
Pitching_decisionS
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260616_BAL@SEA
game_typefull
mlbID662253
playerID662253
playerNameAndrés Muñoz
posP
startedFalse
startingPositionP
teamSEA
teamID25
game_date2026-06-16
sl_k_percent33.3
sl_bb_percent9.6
sl_woba0.321
sl_xwoba0.327
sl_sweet_spot_percent34.4
sl_barrel_batted_rate10.9
sl_hard_hit_percent45.3
sl_whiff_percent40.8
sl_swing_percent46.5
sl_avg_best_speed75.00311625
sl_avg_hyper_speed94.778782381
Eduard Bazardo (660825) · PITCHER · Middle Reliever · Team SEA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 34
All-history rows before 20260618: 34

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB2.0002.0002.000Pitching_BB0.3240.0001.6762.000
predicted_ER1.0001.0001.000Pitching_ER0.2350.0000.7651.000
predicted_H1.0001.0001.000Pitching_H0.9410.0000.0591.000
predicted_IP1.1001.1001.100Pitching_InningsPitched0.7791.0000.3210.100
predicted_SO0.0000.0000.000Pitching_SO0.8241.000-0.824-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final11010predicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "660825",
  "player_name": "Eduard Bazardo",
  "position": "Middle Reliever",
  "team": "SEA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.1,
        "predicted_R": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB2.000-
predicted_ER1.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 34
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.1001.0004.0001.0003.0000.0002.07691.15380.23080.92310.23080.69230.0000
last_100.351010.1002.00010.0002.0009.0000.0001.74191.16130.19350.96770.19350.87100.0000
season0.203432.1008.00032.00011.00028.0002.0002.22681.32990.24740.98970.34020.86600.0619
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2940
predicted_ER0.3440
predicted_ERA3.0923
predicted_H0.9620
predicted_HR0.0710
predicted_IP1.0000
predicted_SO0.8540
predicted_WHIP1.2554
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB2.00000.29401.2067model_form_blend
predicted_ER1.00000.34400.6949model_form_blend
predicted_ERA-3.09233.0923form_only
predicted_H1.00000.96200.9823model_form_blend
predicted_HR0.00000.07100.0330model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00000.85400.3971model_form_blend
predicted_WHIP-1.25541.2554form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date34
Season rows before report date34
Report year2026
Profile rows used34
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.1
H1
R1
ER1
BB2
SO0
HR0
BF7
Pitches28

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA2.23
Pitching_Flyouts1
Pitching_Groundouts1
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches9
Pitching_R0
Pitching_SO1
Pitching_Strikes6
Pitching_Wild Pitch0
Pitching_decisionH
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260616_BAL@SEA
game_typefull
mlbID660825
playerID660825
playerNameEduard Bazardo
posP
startedFalse
startingPositionP
teamSEA
teamID25
game_date2026-06-16
sl_k_percent20.7
sl_bb_percent8.1
sl_woba0.313
sl_xwoba0.328
sl_sweet_spot_percent36.8
sl_barrel_batted_rate8.4
sl_hard_hit_percent41.1
sl_whiff_percent21.4
sl_swing_percent44.6
sl_avg_best_speed81.768124255
sl_avg_hyper_speed94.614598065
José A. Ferrer (678606) · PITCHER · Middle Reliever · Team SEA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 35
All-history rows before 20260618: 35

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB0.2290.0000.7711.000
predicted_ER0.0000.0000.000Pitching_ER0.2860.000-0.2860.000
predicted_H0.0000.0000.000Pitching_H1.0291.000-1.029-1.000
predicted_IP0.2000.2000.200Pitching_InningsPitched0.7891.000-0.589-0.800
predicted_SO1.0001.0001.000Pitching_SO0.7711.0000.2290.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics2
Boosted Metrics0
Deboosted Metrics2
Better Metrics0
Worse Metrics2
Biggest Boost-
Biggest Deboostpredicted_SO: 2.0000 -> 1.0000 (deboost -1.0000, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final20202-predicted_SO: 2.0000 -> 1.0000 (deboost -1.0000, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "678606",
  "player_name": "José A. Ferrer",
  "position": "Middle Reliever",
  "team": "SEA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.6667,
        "predicted_SO": 2.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.2,
        "predicted_R": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 0.6667,
          "after": 0.2,
          "delta": -0.4667,
          "percent_delta": -0.7,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 1.0,
          "delta": -1.0,
          "percent_delta": -0.5,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 1.0,
          "delta": -1.0,
          "percent_delta": -0.5,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 0.6667,
        "after": 0.2,
        "delta": -0.4667,
        "percent_delta": -0.7,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 2.0,
        "after": 1.0,
        "delta": -1.0,
        "percent_delta": -0.5,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 2,
      "boosted_metrics": 0,
      "deboosted_metrics": 2,
      "better_metrics": 0,
      "worse_metrics": 2,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 2.0,
        "after": 1.0,
        "delta": -1.0,
        "percent_delta": -0.5,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP0.667-
predicted_SO2.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 34
Reference playing time: 0.667
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4553.2005.0006.0005.0003.0001.00012.27273.00001.36361.63641.36360.81820.2727
last_100.35107.2005.0009.0005.0005.0001.0005.86961.82610.65221.17390.65220.65220.1304
season0.203431.10010.00035.0008.00027.0002.0002.87231.37230.31911.11700.25530.86170.0638
Weighted Prediction From Real Data
MetricValue
predicted_BB0.4620
predicted_ER0.5100
predicted_ERA6.5284
predicted_H0.8400
predicted_HR0.1160
predicted_IP0.2000
predicted_SO0.5940
predicted_WHIP1.8509
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00000.46200.7516model_form_blend
predicted_ER0.00000.51000.2355model_form_blend
predicted_ERA-6.52846.5284form_only
predicted_H0.00000.84000.3879model_form_blend
predicted_HR0.00000.11600.0536model_form_blend
predicted_IP0.20000.20000.2000model_form_blend
predicted_SO2.00000.59401.3507model_form_blend
predicted_WHIP-1.85091.8509form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date35
Season rows before report date35
Report year2026
Profile rows used34
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP0.2
H0
R0
ER0
BB1
SO1
HR0
BF3
Pitches15

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER0
Pitching_ERA2.87
Pitching_Flyouts1
Pitching_Groundouts1
Pitching_H1
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches10
Pitching_R0
Pitching_SO1
Pitching_Strikes8
Pitching_Wild Pitch0
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260614_SEA@WAS
game_typefull
mlbID678606
playerID678606
playerNameJosé A. Ferrer
posP
startedFalse
startingPositionP
teamSEA
teamID25
game_date2026-06-14
sl_k_percent19.3
sl_bb_percent5.7
sl_woba0.323
sl_xwoba0.269
sl_sweet_spot_percent28.4
sl_barrel_batted_rate3.9
sl_hard_hit_percent36.3
sl_whiff_percent21.2
sl_swing_percent52.8
sl_avg_best_speed73.655597
sl_avg_hyper_speed93.2911461

20260618_CHW@NYY

Prediction Method: enhanced_ml_savant_pitcher_quality
Team Recent Window (Home): 57 games
Team Recent Window (Away): 67 games
Team Recent Period: Latest 10 games from dataset
Enhanced Prediction Target: {"away_runs": 4, "home_runs": 3, "confidence": 0.565798, "home_win_probability": 0.434202, "away_win_probability": 0.565798, "predicted_score_text": "CHW 4 - 3 NYY", "embedded_savant_score_adjustment": {"applied": true, "source": "all_players_stats.csv embedded temporal Savant features", "feature_contract": {"training_grain": "one player-game row after collapsing granular at-bat rows", "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game", "hitter_signals": ["xwoba", "xba", "xslg", "barrel_batted_rate", "hard_hit_percent", "bat_speed", "launch_quality", "walk_rate", "strikeout_rate"], "pitcher_signals": ["xwoba_allowed", "barrel_allowed", "hard_hit_allowed", "whiff_rate", "command_score", "movement_score", "faced_est_woba", "faced_strikeout_rate"]}, "away": {"team": "CHW", "original_runs": 4, "run_delta": -0.0012, "adjusted_runs": 4, "lineup": {"players_used": 8, "total_weight": 28.0, "quality": 0.08147719382225589, "contact": 0.09974247954172243, "power": 0.230202045450076, "discipline": -0.14434610539902795, "xwoba": 0.31921428571428573, "recent_xwoba": 0.31921428571428573, "barrel": 8.8, "ab_hard_contact": -0.3678366420188967, "ab_bat_speed": 68.9776772475233, "ab_strikeout_rate": 0.23108658733288973, "available_players": 7, "top_players": [{"player_id": "678246", "player_name": "Miguel Vargas", "position": "1B", "weight": 4.0, "quality": 1.2485389647539396, "contact": 1.2452266234635736, "power": 1.4240317267647704, "discipline": 1.0439867079623177, "xwoba": 0.401, "recent_xwoba": 0.401, "barrel": 14.4, "ab_hard_contact": 0.5425392972001649, "ab_bat_speed": 72.40690402704291, "ab_strikeout_rate": 0.18518518518518517, "available": 1.0}, {"player_id": "545341", "player_name": "Randal Grichuk", "position": "DH", "weight": 3.0, "quality": 0.4137590553392926, "contact": 1.5465445539135196, "power": 1.6209687409406293, "discipline": -0.5674134927309862, "xwoba": 0.393, "recent_xwoba": 0.393, "barrel": 13.9, "ab_hard_contact": 1.5748033902411542, "ab_bat_speed": 72.14736590038315, "ab_strikeout_rate": 0.2149425287356322, "available": 1.0}, {"player_id": "700337", "player_name": "Edgar Quero", "position": "C", "weight": 3.0, "quality": -0.44029939308679256, "contact": -0.9361811742332826, "power": -0.9876615543737675, "discipline": -0.29025947940151664, "xwoba": 0.253, "recent_xwoba": 0.253, "barrel": 1.9, "ab_hard_contact": -0.8435168017610719, "ab_bat_speed": 66.6949387254902, "ab_strikeout_rate": 0.2784313725490196, "available": 1.0}, {"player_id": "805367", "player_name": "Chase Meidroth", "position": "2B", "weight": 4.0, "quality": -0.4580331006816472, "contact": -0.40220663528693507, "power": -0.6025825957723883, "discipline": 0.16787152684713666, "xwoba": 0.293, "recent_xwoba": 0.293, "barrel": 5.1, "ab_hard_contact": -0.8406042964001481, "ab_bat_speed": 64.46452457264958, "ab_strikeout_rate": 0.23237179487179488, "available": 1.0}, {"player_id": "671976", "player_name": "Tristan Peters", "position": "CF", "weight": 3.0, "quality": -0.3082222205570046, "contact": -0.3390353409874841, "power": -0.6437941023398315, "discipline": -0.012484852884242973, "xwoba": 0.305, "recent_xwoba": 0.305, "barrel": 4.8, "ab_hard_contact": -0.7459772848918798, "ab_bat_speed": 63.24040798611111, "ab_strikeout_rate": 0.22951388888888888, "available": 1.0}]}, "opposing_starter": {"available": true, "player_id": "677960", "player_name": "Ryan Weathers", "quality": -0.10722038082992853, "contact": -0.4196258217365083, "command": 0.3971428571428572, "movement": -0.07511977497084323, "xwoba": 0.323, "whiff": 26.5, "faced_est_woba": 0.267543125, "faced_launch_speed": 83.82962962962962, "faced_strikeout_rate": 0.23125, "faced_run_exp": 0.007916194341372912}}, "home": {"team": "NYY", "original_runs": 3, "run_delta": 0.1557, "adjusted_runs": 3, "lineup": {"players_used": 9, "total_weight": 32.0, "quality": 0.16029767194958544, "contact": 0.16710811491728836, "power": 0.13443397377424945, "discipline": -0.033595078744013455, "xwoba": 0.3234375, "recent_xwoba": 0.3234375, "barrel": 7.50625, "ab_hard_contact": 0.11866161834212902, "ab_bat_speed": 70.49915563879792, "ab_strikeout_rate": 0.24031732516290633, "available_players": 9, "top_players": [{"player_id": "700250", "player_name": "Ben Rice", "position": "1B", "weight": 4.0, "quality": 1.114354386264113, "contact": 1.3174489586055667, "power": 1.5602805384900507, "discipline": 0.47897801559648256, "xwoba": 0.393, "recent_xwoba": 0.393, "barrel": 15.4, "ab_hard_contact": 0.7827536269438703, "ab_bat_speed": 70.94105952380953, "ab_strikeout_rate": 0.23469387755102042, "available": 1.0}, {"player_id": "676609", "player_name": "José Caballero", "position": "SS", "weight": 3.0, "quality": -0.6411665825720452, "contact": -0.7967638635734638, "power": -1.0599597487406394, "discipline": -0.3312355142599044, "xwoba": 0.289, "recent_xwoba": 0.289, "barrel": 3.1, "ab_hard_contact": -1.2734806890984982, "ab_bat_speed": 65.39745987654321, "ab_strikeout_rate": 0.1774074074074074, "available": 1.0}, {"player_id": "641355", "player_name": "Cody Bellinger", "position": "LF", "weight": 4.0, "quality": 0.7677941650289404, "contact": 1.053907167114367, "power": 0.41878343444739197, "discipline": 1.1772591947348043, "xwoba": 0.375, "recent_xwoba": 0.375, "barrel": 8.0, "ab_hard_contact": 0.7771924984716465, "ab_bat_speed": 69.28407278806584, "ab_strikeout_rate": 0.13055555555555556, "available": 1.0}, {"player_id": "502671", "player_name": "Paul Goldschmidt", "position": "DH", "weight": 4.0, "quality": 0.26622931187803894, "contact": 0.6621857123713594, "power": 0.8034141701020415, "discipline": 0.05164808362369342, "xwoba": 0.363, "recent_xwoba": 0.363, "barrel": 12.0, "ab_hard_contact": 0.3067595925170054, "ab_bat_speed": 69.01389880952381, "ab_strikeout_rate": 0.2095238095238095, "available": 1.0}, {"player_id": "641555", "player_name": "J.C. Escarra", "position": "C", "weight": 3.0, "quality": -0.19680630939257177, "contact": -0.9144737442612938, "power": -0.8348341708572296, "discipline": -0.37048419150858164, "xwoba": 0.261, "recent_xwoba": 0.261, "barrel": 3.4, "ab_hard_contact": -0.19496913143031364, "ab_bat_speed": 67.34285130718955, "ab_strikeout_rate": 0.22037037037037038, "available": 1.0}]}, "opposing_starter": {"available": true, "player_id": "663542", "player_name": "Bryan Hudson", "quality": -0.0017804816357515148, "contact": 0.15487266073714284, "command": -0.16372222222222232, "movement": -0.09397224765097437, "xwoba": 0.298, "whiff": 22.9, "faced_est_woba": 0.307470946875, "faced_launch_speed": 81.38993923611112, "faced_strikeout_rate": 0.20208333333333334, "faced_run_exp": -0.017708201347552913}}}, "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Season quality guardrail cap enforced after calibration. Production confidence governor cap enforced.", "pre_simulation_target": {"away_runs": 4, "home_runs": 3, "predicted_score_text": "CHW 4 - 3 NYY", "confidence": 0.565798, "source": "enhanced_prediction_before_inning_simulation"}, "score_source": "enhanced_prediction.pre_simulation_target", "final_prediction_synced": true, "final_prediction_source": "pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "simulation_score_matches_prediction": true, "simulation_reconciliation": {"pre_simulation_score": {"away_runs": 4, "home_runs": 3, "score_text": "CHW 4 - 3 NYY", "winner": "CHW"}, "final_simulation_score": {"away_runs": 4, "home_runs": 3, "score_text": "CHW 4 - 3 NYY", "winner": "CHW"}, "winner_flipped_by_simulation": false, "away_run_delta": 0, "home_run_delta": 0, "total_run_delta": 0, "score_source": "enhanced_prediction.pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "final_prediction_source": "pre_simulation_target"}}
Factors Considered: Historical team performance, Season-to-date run differential, Recent form (latest 10 games), Head-to-head matchup history, Player-level statistics, Baseball Savant hitter xwOBA/xBA/xSLG/contact quality, Baseball Savant pitcher xwOBA/contact/whiff quality, Recent 10-game performance trends, Pitcher recent form analysis, Team hitting/pitching streaks, Low-score probability modeling, Environmental factors, Home field advantage, Game timing factors, Seasonal adjustments, Machine learning models

Game-Level Prediction Audit

LayerScoreWinnerConfidenceSource or usageSynced or matches
Shipped predictionCHW 4 - 3 NYYCHW0.566enhanced_prediction.pre_simulation_targetTrue
Simulation drawCHW 4 - 3 NYYCHW-advisory_box_score_drawTrue

The shipped score is the pre-simulation model target. The inning simulation is a separate box-score realization used for player lines and stress testing.

Full Prediction Process

Process LayerWhat It DoesStored FieldObserved Value
1. Historical modelStarts from trained game model output.score_evolution.steps[historical_ml]-
2. Variance layerApplies bounded game variance before enhanced corrections.score_evolution.steps[variance_applied]-
3. Recent/team formUses latest team form, recent scoring, prevention, and streak state.enhanced_prediction_analysis.recent_formTrue
4. Season qualityUses season run differential and record quality guardrails.season_run_differential_adjustment, season_quality_guardrailTrue
5. Savant hittersApplies lineup-level Statcast xwOBA, xBA, xSLG, barrel, hard-hit, sweet-spot, EV, launch-angle, whiff, K and BB quality.savant_batter_quality_adjustmentTrue
6. Savant pitchersApplies starter run prevention, strikeout, walk, HR and regression factors from xwOBA, wOBA, contact quality and whiff/command.savant_pitcher_quality_adjustmentTrue
7. Low-score analysisControls unrealistic totals and preserves the pre-sync low-score expected total.low_score_analysis9.7000
8. Probability/governorsApplies win probability calibration, matchup guardrails, margin governor and confidence governor.win_probability_calibration, margin_governor, confidence_governor0.5658
9. Simulation reconciliationKeeps final shipped score and simulation box score auditable side by side.simulation_reconciliationadvisory_box_score_draw
10. Score evolution rendered6 stored score steps are rendered below.game.score_evolution.stepstrue

Score Evolution Steps

StepLayerAway RunsHome RunsConfidenceDescription
1historical_ml6.6273.187-Base ML historical model prediction
2variance_applied63-Random variance applied (0.9-1.1)
3enhanced_prediction430.5658Enhanced ML with recent form, H2H, low-score analysis
4embedded_savant_run_environment43-Target score adjusted by temporal Savant lineup quality versus opposing starter quality
5capped_target43-Capped at max 12 realistic runs
6simulation_result43-Final inning-by-inning simulation result

Governors, Guardrails, and Reconciliation

Low Score Analysis
{
  "low_score_probability": 0.4429485099337749,
  "base_low_score_probability": 0.4155629139072848,
  "low_score_signal_threshold": 0.5,
  "low_score_signal_strength": 0.0273855960264901,
  "confidence": 0.63295,
  "factors": {
    "environmental": 0.969,
    "pitcher_form": 1.1,
    "team_form": 1.0,
    "situational": 1.0,
    "combined": 1.0659
  },
  "prediction": "normal_scoring",
  "expected_total_runs": 7,
  "pre_simulation_expected_total_runs": 9.7,
  "low_score_model_expected_total_runs": 9.7,
  "final_simulation_total_runs": 7,
  "score_source": "enhanced_prediction.pre_simulation_target"
}
Win Probability Calibration
{
  "method": "historical_slate_bin_shrinkage",
  "sample_size": 101,
  "near_bucket_sample_size": 101,
  "medium_bucket_sample_size": 212,
  "wide_bucket_sample_size": 227,
  "global_sample_size": 242,
  "bucket_scope": "near_0.05",
  "sparse_bucket": false,
  "empirical_hit_rate": 0.6436,
  "bayesian_hit_rate": 0.6218,
  "sample_weight": 0.6,
  "prior_strength": 18.0,
  "reliability": 0.8487,
  "confidence_cap": 0.78,
  "raw_pick_probability": 0.5,
  "calibrated_pick_probability": 0.5658,
  "predicted_side": "away"
}
Season Run Differential Adjustment
{
  "applied": true,
  "home": {
    "team": "NYY",
    "games": 72,
    "wins": 45,
    "losses": 27,
    "win_pct": 0.625,
    "runs_scored": 380,
    "runs_allowed": 258,
    "run_differential": 122,
    "run_differential_per_game": 1.6944444444444444,
    "available": true
  },
  "away": {
    "team": "CHW",
    "games": 72,
    "wins": 38,
    "losses": 34,
    "win_pct": 0.5277777777777778,
    "runs_scored": 340,
    "runs_allowed": 343,
    "run_differential": -3,
    "run_differential_per_game": -0.041666666666666664,
    "available": true
  },
  "run_differential_edge_per_game": 1.7361,
  "win_pct_edge": 0.0972,
  "quality_edge": 1.8819,
  "margin_adjustment": 0.7904,
  "reason": "season-to-date run differential and record moved the score toward the stronger team",
  "adjusted_score": {
    "away_runs": 3.005,
    "home_runs": 1.864,
    "home_win_probability": 0.403
  }
}
Matchup Recency Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "predicted_team": "CHW",
    "guardrail_predicted_team": "CHW",
    "guardrail_opponent_team": null,
    "output_pre_simulation_winner": "CHW",
    "output_opponent_team": "NYY",
    "final_score_winner": "CHW",
    "pre_simulation_winner": "CHW",
    "winner_flipped_by_simulation": false
  },
  "final_prediction_sync": {
    "pre_simulation_score": {
      "away_runs": 4,
      "home_runs": 3,
      "score_text": "CHW 4 - 3 NYY",
      "winner": "CHW"
    },
    "final_simulation_score": {
      "away_runs": 4,
      "home_runs": 3,
      "score_text": "CHW 4 - 3 NYY",
      "winner": "CHW"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": 0,
    "home_run_delta": 0,
    "total_run_delta": 0,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}
Season Quality Guardrail
{
  "applied": true,
  "confidence_cap": 0.6,
  "winner_flipped": false,
  "reasons": [
    "season-to-date record and run differential support the home team over a close road lean"
  ],
  "signals": {
    "home": {
      "team": "NYY",
      "games": 72,
      "wins": 45,
      "losses": 27,
      "win_pct": 0.625,
      "runs_scored": 380,
      "runs_allowed": 258,
      "run_differential": 122,
      "run_differential_per_game": 1.6944444444444444,
      "available": true
    },
    "away": {
      "team": "CHW",
      "games": 72,
      "wins": 38,
      "losses": 34,
      "win_pct": 0.5277777777777778,
      "runs_scored": 340,
      "runs_allowed": 343,
      "run_differential": -3,
      "run_differential_per_game": -0.041666666666666664,
      "available": true
    },
    "home_quality_edge": 0.3056,
    "original_score": {
      "away_runs": 3.005,
      "home_runs": 1.864,
      "home_win_probability": 0.403
    },
    "adjusted_score": {
      "away_runs": 2.655,
      "home_runs": 2.642,
      "home_win_probability": 0.51
    }
  }
}
Margin Governor
{
  "applied": false,
  "raw_margin": -0.0135,
  "final_margin": -0.0135,
  "margin_cap": 4.25,
  "season_quality_edge": 1.8819,
  "reason": "raw target margin within supported range"
}
Confidence Governor
{
  "applied": false,
  "raw_confidence": 0.50135,
  "final_confidence": 0.505,
  "confidence_cap": 0.66,
  "score_gap": 0.0135,
  "calibration_sample_size": 101,
  "calibration_empirical_hit_rate": 0.6436,
  "calibration_bayesian_hit_rate": 0.6218,
  "calibration_sparse_bucket": false,
  "season_quality_edge": 1.8819,
  "reasons": [
    "unvalidated probabilities are capped for production display",
    "projected score gap is close",
    "local calibration sample has at least 30 games",
    "local calibration sample has at least 60 games",
    "season run-differential edge supports the pick",
    "win-probability calibration cap enforced"
  ]
}
Simulation Reconciliation
{
  "pre_simulation_score": {
    "away_runs": 4,
    "home_runs": 3,
    "score_text": "CHW 4 - 3 NYY",
    "winner": "CHW"
  },
  "final_simulation_score": {
    "away_runs": 4,
    "home_runs": 3,
    "score_text": "CHW 4 - 3 NYY",
    "winner": "CHW"
  },
  "winner_flipped_by_simulation": false,
  "away_run_delta": 0,
  "home_run_delta": 0,
  "total_run_delta": 0,
  "score_source": "enhanced_prediction.pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "final_prediction_source": "pre_simulation_target"
}
Enhanced Prediction Target
{
  "away_runs": 4,
  "home_runs": 3,
  "confidence": 0.565798,
  "home_win_probability": 0.434202,
  "away_win_probability": 0.565798,
  "predicted_score_text": "CHW 4 - 3 NYY",
  "embedded_savant_score_adjustment": {
    "applied": true,
    "source": "all_players_stats.csv embedded temporal Savant features",
    "feature_contract": {
      "training_grain": "one player-game row after collapsing granular at-bat rows",
      "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game",
      "hitter_signals": [
        "xwoba",
        "xba",
        "xslg",
        "barrel_batted_rate",
        "hard_hit_percent",
        "bat_speed",
        "launch_quality",
        "walk_rate",
        "strikeout_rate"
      ],
      "pitcher_signals": [
        "xwoba_allowed",
        "barrel_allowed",
        "hard_hit_allowed",
        "whiff_rate",
        "command_score",
        "movement_score",
        "faced_est_woba",
        "faced_strikeout_rate"
      ]
    },
    "away": {
      "team": "CHW",
      "original_runs": 4,
      "run_delta": -0.0012,
      "adjusted_runs": 4,
      "lineup": {
        "players_used": 8,
        "total_weight": 28.0,
        "quality": 0.08147719382225589,
        "contact": 0.09974247954172243,
        "power": 0.230202045450076,
        "discipline": -0.14434610539902795,
        "xwoba": 0.31921428571428573,
        "recent_xwoba": 0.31921428571428573,
        "barrel": 8.8,
        "ab_hard_contact": -0.3678366420188967,
        "ab_bat_speed": 68.9776772475233,
        "ab_strikeout_rate": 0.23108658733288973,
        "available_players": 7,
        "top_players": [
          {
            "player_id": "678246",
            "player_name": "Miguel Vargas",
            "position": "1B",
            "weight": 4.0,
            "quality": 1.2485389647539396,
            "contact": 1.2452266234635736,
            "power": 1.4240317267647704,
            "discipline": 1.0439867079623177,
            "xwoba": 0.401,
            "recent_xwoba": 0.401,
            "barrel": 14.4,
            "ab_hard_contact": 0.5425392972001649,
            "ab_bat_speed": 72.40690402704291,
            "ab_strikeout_rate": 0.18518518518518517,
            "available": 1.0
          },
          {
            "player_id": "545341",
            "player_name": "Randal Grichuk",
            "position": "DH",
            "weight": 3.0,
            "quality": 0.4137590553392926,
            "contact": 1.5465445539135196,
            "power": 1.6209687409406293,
            "discipline": -0.5674134927309862,
            "xwoba": 0.393,
            "recent_xwoba": 0.393,
            "barrel": 13.9,
            "ab_hard_contact": 1.5748033902411542,
            "ab_bat_speed": 72.14736590038315,
            "ab_strikeout_rate": 0.2149425287356322,
            "available": 1.0
          },
          {
            "player_id": "700337",
            "player_name": "Edgar Quero",
            "position": "C",
            "weight": 3.0,
            "quality": -0.44029939308679256,
            "contact": -0.9361811742332826,
            "power": -0.9876615543737675,
            "discipline": -0.29025947940151664,
            "xwoba": 0.253,
            "recent_xwoba": 0.253,
            "barrel": 1.9,
            "ab_hard_contact": -0.8435168017610719,
            "ab_bat_speed": 66.6949387254902,
            "ab_strikeout_rate": 0.2784313725490196,
            "available": 1.0
          },
          {
            "player_id": "805367",
            "player_name": "Chase Meidroth",
            "position": "2B",
            "weight": 4.0,
            "quality": -0.4580331006816472,
            "contact": -0.40220663528693507,
            "power": -0.6025825957723883,
            "discipline": 0.16787152684713666,
            "xwoba": 0.293,
            "recent_xwoba": 0.293,
            "barrel": 5.1,
            "ab_hard_contact": -0.8406042964001481,
            "ab_bat_speed": 64.46452457264958,
            "ab_strikeout_rate": 0.23237179487179488,
            "available": 1.0
          },
          {
            "player_id": "671976",
            "player_name": "Tristan Peters",
            "position": "CF",
            "weight": 3.0,
            "quality": -0.3082222205570046,
            "contact": -0.3390353409874841,
            "power": -0.6437941023398315,
            "discipline": -0.012484852884242973,
            "xwoba": 0.305,
            "recent_xwoba": 0.305,
            "barrel": 4.8,
            "ab_hard_contact": -0.7459772848918798,
            "ab_bat_speed": 63.24040798611111,
            "ab_strikeout_rate": 0.22951388888888888,
            "available": 1.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "677960",
        "player_name": "Ryan Weathers",
        "quality": -0.10722038082992853,
        "contact": -0.4196258217365083,
        "command": 0.3971428571428572,
        "movement": -0.07511977497084323,
        "xwoba": 0.323,
        "whiff": 26.5,
        "faced_est_woba": 0.267543125,
        "faced_launch_speed": 83.82962962962962,
        "faced_strikeout_rate": 0.23125,
        "faced_run_exp": 0.007916194341372912
      }
    },
    "home": {
      "team": "NYY",
      "original_runs": 3,
      "run_delta": 0.1557,
      "adjusted_runs": 3,
      "lineup": {
        "players_used": 9,
        "total_weight": 32.0,
        "quality": 0.16029767194958544,
        "contact": 0.16710811491728836,
        "power": 0.13443397377424945,
        "discipline": -0.033595078744013455,
        "xwoba": 0.3234375,
        "recent_xwoba": 0.3234375,
        "barrel": 7.50625,
        "ab_hard_contact": 0.11866161834212902,
        "ab_bat_speed": 70.49915563879792,
        "ab_strikeout_rate": 0.24031732516290633,
        "available_players": 9,
        "top_players": [
          {
            "player_id": "700250",
            "player_name": "Ben Rice",
            "position": "1B",
            "weight": 4.0,
            "quality": 1.114354386264113,
            "contact": 1.3174489586055667,
            "power": 1.5602805384900507,
            "discipline": 0.47897801559648256,
            "xwoba": 0.393,
            "recent_xwoba": 0.393,
            "barrel": 15.4,
            "ab_hard_contact": 0.7827536269438703,
            "ab_bat_speed": 70.94105952380953,
            "ab_strikeout_rate": 0.23469387755102042,
            "available": 1.0
          },
          {
            "player_id": "676609",
            "player_name": "José Caballero",
            "position": "SS",
            "weight": 3.0,
            "quality": -0.6411665825720452,
            "contact": -0.7967638635734638,
            "power": -1.0599597487406394,
            "discipline": -0.3312355142599044,
            "xwoba": 0.289,
            "recent_xwoba": 0.289,
            "barrel": 3.1,
            "ab_hard_contact": -1.2734806890984982,
            "ab_bat_speed": 65.39745987654321,
            "ab_strikeout_rate": 0.1774074074074074,
            "available": 1.0
          },
          {
            "player_id": "641355",
            "player_name": "Cody Bellinger",
            "position": "LF",
            "weight": 4.0,
            "quality": 0.7677941650289404,
            "contact": 1.053907167114367,
            "power": 0.41878343444739197,
            "discipline": 1.1772591947348043,
            "xwoba": 0.375,
            "recent_xwoba": 0.375,
            "barrel": 8.0,
            "ab_hard_contact": 0.7771924984716465,
            "ab_bat_speed": 69.28407278806584,
            "ab_strikeout_rate": 0.13055555555555556,
            "available": 1.0
          },
          {
            "player_id": "502671",
            "player_name": "Paul Goldschmidt",
            "position": "DH",
            "weight": 4.0,
            "quality": 0.26622931187803894,
            "contact": 0.6621857123713594,
            "power": 0.8034141701020415,
            "discipline": 0.05164808362369342,
            "xwoba": 0.363,
            "recent_xwoba": 0.363,
            "barrel": 12.0,
            "ab_hard_contact": 0.3067595925170054,
            "ab_bat_speed": 69.01389880952381,
            "ab_strikeout_rate": 0.2095238095238095,
            "available": 1.0
          },
          {
            "player_id": "641555",
            "player_name": "J.C. Escarra",
            "position": "C",
            "weight": 3.0,
            "quality": -0.19680630939257177,
            "contact": -0.9144737442612938,
            "power": -0.8348341708572296,
            "discipline": -0.37048419150858164,
            "xwoba": 0.261,
            "recent_xwoba": 0.261,
            "barrel": 3.4,
            "ab_hard_contact": -0.19496913143031364,
            "ab_bat_speed": 67.34285130718955,
            "ab_strikeout_rate": 0.22037037037037038,
            "available": 1.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "663542",
        "player_name": "Bryan Hudson",
        "quality": -0.0017804816357515148,
        "contact": 0.15487266073714284,
        "command": -0.16372222222222232,
        "movement": -0.09397224765097437,
        "xwoba": 0.298,
        "whiff": 22.9,
        "faced_est_woba": 0.307470946875,
        "faced_launch_speed": 81.38993923611112,
        "faced_strikeout_rate": 0.20208333333333334,
        "faced_run_exp": -0.017708201347552913
      }
    }
  },
  "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Season quality guardrail cap enforced after calibration. Production confidence governor cap enforced.",
  "pre_simulation_target": {
    "away_runs": 4,
    "home_runs": 3,
    "predicted_score_text": "CHW 4 - 3 NYY",
    "confidence": 0.565798,
    "source": "enhanced_prediction_before_inning_simulation"
  },
  "score_source": "enhanced_prediction.pre_simulation_target",
  "final_prediction_synced": true,
  "final_prediction_source": "pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "simulation_score_matches_prediction": true,
  "simulation_reconciliation": {
    "pre_simulation_score": {
      "away_runs": 4,
      "home_runs": 3,
      "score_text": "CHW 4 - 3 NYY",
      "winner": "CHW"
    },
    "final_simulation_score": {
      "away_runs": 4,
      "home_runs": 3,
      "score_text": "CHW 4 - 3 NYY",
      "winner": "CHW"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": 0,
    "home_run_delta": 0,
    "total_run_delta": 0,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}

Savant Batter Quality

Source: data/all_players_stats.csv embedded Savant hitter features. It adjusts team offense through expected production and contact quality, then records coverage so missing hitters are visible.

TeamAppliedOffense FactorRaw Avg FactorCoverage WeightCoveredMissing
Away CHWTrue1.01621.01830.888981
Home NYYTrue1.01671.0167190

Away Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
1BMiguel Vargas271.13031.7370positive_batter_regression0.40100.27300.542014.4045.2090.1019.7020.2016.4014.500.8571
3BColson Montgomery361.03740.4986neutral0.32800.21700.447013.9046.7090.2020.4037.7030.209-0.7143
DHRandal Grichuk2901.06320.8423positive_batter_regression0.39300.31800.570013.9047.209114.5023.7022.2041.1143
2BChase Meidroth680.9688-0.4164negative_batter_regression0.29300.23400.33605.103687.80719.6022.709-1.1429
CEdgar Quero5330.9654-0.4616neutral0.25300.20000.27501.9034.30919.2024.8024.507.500.4286
RFBraden Montgomery3711.01370.1828neutral0.29900.25600.412010.5047.4091.904.802628.603.600.4000
CFTristan Peters440.9826-0.2314negative_batter_regression0.30500.25200.36904.8027.4086.4013.5022.7018.407.50-1.4000
SSLuisangel Acuña5010.9847-0.2044positive_batter_regression0.26700.23900.3050338.4089.401.8024.1017.705.401.4571

Home Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
LFCody Bellinger41.08201.0927neutral0.37500.29300.461083789.3019.1017.7012.3013.600.0286
1BBen Rice381.10861.4475neutral0.39300.28400.527015.4048.4092.1014.4026.2023.1013.40-0.8571
DHPaul Goldschmidt751.03170.4231negative_batter_regression0.36300.27400.49501240.6087.9016.5023.6018.408.10-1.0286
RFJasson Domínguez2540.9963-0.0500neutral0.30600.29000.3450037.8090.108.7028.20134.300.0571
2BJazz Chisholm Jr.1380.9915-0.1127neutral0.30000.21300.36608.9040.6090.1015.103228.5011.30-0.5714
SSJosé Caballero850.9639-0.4816negative_batter_regression0.28900.24200.34803.1025.8083.6010.8025.4019.505.50-1
CFSpencer Jones2820.9889-0.1479negative_batter_regression0.28700.18900.33704.207597.5015.1037.1039.6013.20-1.2000
3BRyan McMahon4111.01080.1443neutral0.29700.22800.389010.3049.2090.601232.2030.607.800.5714
CJ.C. Escarra3260.9770-0.3063neutral0.26100.20800.30503.4033.3088.708.4029.7021.407.100.6000
Raw Savant Batter Quality JSON
{
  "home": {
    "applied": true,
    "offense_factor": 1.0167,
    "raw_average_factor": 1.0167,
    "team_espn_average_rank": 179.22,
    "coverage_weight": 1.0,
    "covered_batters": 9,
    "missing_batters": 0,
    "players": [
      {
        "position": "LF",
        "player_id": "641355",
        "player_name": "Cody Bellinger",
        "offense_factor": 1.082,
        "quality_score": 1.0927,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "641355",
          "espn_id": 33912,
          "player_name": "Cody Bellinger",
          "team": "NYY",
          "role": "batter",
          "espn_rank": 4,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 4,
            "gp_value": 71.0,
            "gp_rank": 49,
            "ab_value": 261.0,
            "ab_rank": 65,
            "r_value": 45.0,
            "r_rank": 26,
            "h_value": 73.0,
            "h_rank": 37,
            "avg_value": 0.2796934,
            "avg_rank": 34.0,
            "2b_value": 15.0,
            "2b_rank": 27,
            "3b_value": 3.0,
            "3b_rank": 7,
            "hr_value": 11.0,
            "hr_rank": 55,
            "rbi_value": 49.0,
            "rbi_rank": 11,
            "tb_value": 127.0,
            "tb_rank": 243,
            "bb_value": 42.0,
            "bb_rank": 15,
            "so_value": 38.0,
            "so_rank": 208,
            "sb_value": 8.0,
            "sb_rank": 55,
            "obp_value": 0.3733766,
            "obp_rank": "25",
            "slg_value": 0.48659,
            "slg_rank": "34",
            "ops_value": 0.8599666,
            "ops_rank": 9.0,
            "war_value": 3.91,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 230.0,
          "k_percent": 12.3,
          "bb_percent": 13.6,
          "woba": 0.374,
          "xwoba": 0.375,
          "xba": 0.293,
          "xslg": 0.461,
          "sweet_spot_percent": 40.8,
          "barrel_batted_rate": 8.0,
          "hard_hit_percent": 37.0,
          "exit_velocity_avg": 89.3,
          "launch_angle_avg": 19.1,
          "whiff_percent": 17.7,
          "swing_percent": 44.7
        },
        "components": {
          "expected_quality": 1.266,
          "regression_edge": 0.0286,
          "xwoba_edge": 2.0286,
          "xba_edge": 1.5571,
          "xslg_edge": 1.2714,
          "barrel_edge": 0.2667,
          "hard_hit_edge": -0.2143,
          "exit_velocity_edge": 0.2,
          "sweet_spot_edge": 1.25,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "1B",
        "player_id": "700250",
        "player_name": "Ben Rice",
        "offense_factor": 1.1086,
        "quality_score": 1.4475,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "700250",
          "espn_id": 5016968,
          "player_name": "Ben Rice",
          "team": "NYY",
          "role": "batter",
          "espn_rank": 38,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 38,
            "gp_value": 67.0,
            "gp_rank": 117,
            "ab_value": 247.0,
            "ab_rank": 96,
            "r_value": 53.0,
            "r_rank": 4,
            "h_value": 72.0,
            "h_rank": 44,
            "avg_value": 0.2914979,
            "avg_rank": 18.0,
            "2b_value": 15.0,
            "2b_rank": 27,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 20.0,
            "hr_rank": 5,
            "rbi_value": 49.0,
            "rbi_rank": 11,
            "tb_value": 151.0,
            "tb_rank": 120,
            "bb_value": 39.0,
            "bb_rank": 25,
            "so_value": 67.0,
            "so_rank": 54,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.3896551,
            "obp_rank": "11",
            "slg_value": 0.611336,
            "slg_rank": "2",
            "ops_value": 1.0009911,
            "ops_rank": 9.0,
            "war_value": 2.28,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 207.0,
          "k_percent": 23.1,
          "bb_percent": 13.4,
          "woba": 0.423,
          "xwoba": 0.393,
          "xba": 0.284,
          "xslg": 0.527,
          "sweet_spot_percent": 41.2,
          "barrel_batted_rate": 15.4,
          "hard_hit_percent": 48.4,
          "exit_velocity_avg": 92.1,
          "launch_angle_avg": 14.4,
          "whiff_percent": 26.2,
          "swing_percent": 42.2
        },
        "components": {
          "expected_quality": 1.9284,
          "regression_edge": -0.8571,
          "xwoba_edge": 2.5,
          "xba_edge": 1.3,
          "xslg_edge": 2.2143,
          "barrel_edge": 1.9111,
          "hard_hit_edge": 1.4143,
          "exit_velocity_edge": 1.32,
          "sweet_spot_edge": 1.3167,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "DH",
        "player_id": "502671",
        "player_name": "Paul Goldschmidt",
        "offense_factor": 1.0317,
        "quality_score": 0.4231,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "502671",
          "espn_id": 31027,
          "player_name": "Paul Goldschmidt",
          "team": "NYY",
          "role": "batter",
          "espn_rank": 75,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 75,
            "gp_value": 47.0,
            "gp_rank": 251,
            "ab_value": 166.0,
            "ab_rank": 209,
            "r_value": 26.0,
            "r_rank": 158,
            "h_value": 50.0,
            "h_rank": 147,
            "avg_value": 0.3012048,
            "avg_rank": null,
            "2b_value": 8.0,
            "2b_rank": 188,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 11.0,
            "hr_rank": 55,
            "rbi_value": 36.0,
            "rbi_rank": 63,
            "tb_value": 93.0,
            "tb_rank": 644,
            "bb_value": 15.0,
            "bb_rank": 204,
            "so_value": 34.0,
            "so_rank": 240,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3675675,
            "obp_rank": "-",
            "slg_value": 0.5602409,
            "slg_rank": "-",
            "ops_value": 0.9278084,
            "ops_rank": null,
            "war_value": 1.6,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 107.0,
          "k_percent": 18.4,
          "bb_percent": 8.1,
          "woba": 0.399,
          "xwoba": 0.363,
          "xba": 0.274,
          "xslg": 0.495,
          "sweet_spot_percent": 36.8,
          "barrel_batted_rate": 12.0,
          "hard_hit_percent": 40.6,
          "exit_velocity_avg": 87.9,
          "launch_angle_avg": 16.5,
          "whiff_percent": 23.6,
          "swing_percent": 48.5
        },
        "components": {
          "expected_quality": 1.1789,
          "regression_edge": -1.0286,
          "xwoba_edge": 1.6857,
          "xba_edge": 1.0143,
          "xslg_edge": 1.7571,
          "barrel_edge": 1.1556,
          "hard_hit_edge": 0.3,
          "exit_velocity_edge": -0.36,
          "sweet_spot_edge": 0.5833,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "RF",
        "player_id": "691176",
        "player_name": "Jasson Domínguez",
        "offense_factor": 0.9963,
        "quality_score": -0.05,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "691176",
          "espn_id": 42401,
          "player_name": "Jasson Dominguez",
          "team": "NYY",
          "role": "batter",
          "espn_rank": 254,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 254,
            "gp_value": 12.0,
            "gp_rank": 467,
            "ab_value": 43.0,
            "ab_rank": 425,
            "r_value": 6.0,
            "r_rank": 398,
            "h_value": 9.0,
            "h_rank": 421,
            "avg_value": 0.2093023,
            "avg_rank": null,
            "2b_value": 4.0,
            "2b_rank": 307,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 2.0,
            "hr_rank": 301,
            "rbi_value": 5.0,
            "rbi_rank": 401,
            "tb_value": 19.0,
            "tb_rank": 2019,
            "bb_value": 2.0,
            "bb_rank": 442,
            "so_value": 6.0,
            "so_rank": 488,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.2608695,
            "obp_rank": "-",
            "slg_value": 0.4418604,
            "slg_rank": "-",
            "ops_value": 0.7027299,
            "ops_rank": null,
            "war_value": 0.27,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 32.0,
          "k_percent": 13.0,
          "bb_percent": 4.3,
          "woba": 0.304,
          "xwoba": 0.306,
          "xba": 0.29,
          "xslg": 0.345,
          "sweet_spot_percent": 24.3,
          "barrel_batted_rate": 0.0,
          "hard_hit_percent": 37.8,
          "exit_velocity_avg": 90.1,
          "launch_angle_avg": 8.7,
          "whiff_percent": 28.2,
          "swing_percent": 50.0
        },
        "components": {
          "expected_quality": -0.1385,
          "regression_edge": 0.0571,
          "xwoba_edge": 0.0571,
          "xba_edge": 1.4714,
          "xslg_edge": -0.3857,
          "barrel_edge": -1.5111,
          "hard_hit_edge": -0.1,
          "exit_velocity_edge": 0.52,
          "sweet_spot_edge": -1.5,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "2B",
        "player_id": "665862",
        "player_name": "Jazz Chisholm Jr.",
        "offense_factor": 0.9915,
        "quality_score": -0.1127,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "665862",
          "espn_id": 41433,
          "player_name": "Jazz Chisholm Jr.",
          "team": "NYY",
          "role": "batter",
          "espn_rank": 138,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 138,
            "gp_value": 69.0,
            "gp_rank": 83,
            "ab_value": 249.0,
            "ab_rank": 93,
            "r_value": 37.0,
            "r_rank": 67,
            "h_value": 57.0,
            "h_rank": 109,
            "avg_value": 0.2289156,
            "avg_rank": 129.0,
            "2b_value": 10.0,
            "2b_rank": 125,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 10.0,
            "hr_rank": 69,
            "rbi_value": 30.0,
            "rbi_rank": 113,
            "tb_value": 101.0,
            "tb_rank": 475,
            "bb_value": 32.0,
            "bb_rank": 49,
            "so_value": 81.0,
            "so_rank": 19,
            "sb_value": 20.0,
            "sb_rank": 5,
            "obp_value": 0.3169014,
            "obp_rank": "104",
            "slg_value": 0.4056224,
            "slg_rank": "98",
            "ops_value": 0.7225238,
            "ops_rank": 6.0,
            "war_value": 0.93,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 213.0,
          "k_percent": 28.5,
          "bb_percent": 11.3,
          "woba": 0.32,
          "xwoba": 0.3,
          "xba": 0.213,
          "xslg": 0.366,
          "sweet_spot_percent": 28.8,
          "barrel_batted_rate": 8.9,
          "hard_hit_percent": 40.6,
          "exit_velocity_avg": 90.1,
          "launch_angle_avg": 15.1,
          "whiff_percent": 32.0,
          "swing_percent": 43.3
        },
        "components": {
          "expected_quality": -0.0424,
          "regression_edge": -0.5714,
          "xwoba_edge": -0.1143,
          "xba_edge": -0.7286,
          "xslg_edge": -0.0857,
          "barrel_edge": 0.4667,
          "hard_hit_edge": 0.3,
          "exit_velocity_edge": 0.52,
          "sweet_spot_edge": -0.75,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "SS",
        "player_id": "676609",
        "player_name": "José Caballero",
        "offense_factor": 0.9639,
        "quality_score": -0.4816,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "676609",
          "espn_id": 42135,
          "player_name": "Jose Caballero",
          "team": "NYY",
          "role": "batter",
          "espn_rank": 85,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 85,
            "gp_value": 61.0,
            "gp_rank": 168,
            "ab_value": 201.0,
            "ab_rank": 154,
            "r_value": 28.0,
            "r_rank": 139,
            "h_value": 53.0,
            "h_rank": 132,
            "avg_value": 0.2636815,
            "avg_rank": 60.0,
            "2b_value": 10.0,
            "2b_rank": 125,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 25.0,
            "rbi_rank": 161,
            "tb_value": 84.0,
            "tb_rank": 1002,
            "bb_value": 12.0,
            "bb_rank": 253,
            "so_value": 43.0,
            "so_rank": 171,
            "sb_value": 15.0,
            "sb_rank": 10,
            "obp_value": 0.3181818,
            "obp_rank": "99",
            "slg_value": 0.4179104,
            "slg_rank": "86",
            "ops_value": 0.7360922,
            "ops_rank": 185.0,
            "war_value": 1.4,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 163.0,
          "k_percent": 19.5,
          "bb_percent": 5.5,
          "woba": 0.324,
          "xwoba": 0.289,
          "xba": 0.242,
          "xslg": 0.348,
          "sweet_spot_percent": 31.9,
          "barrel_batted_rate": 3.1,
          "hard_hit_percent": 25.8,
          "exit_velocity_avg": 83.6,
          "launch_angle_avg": 10.8,
          "whiff_percent": 25.4,
          "swing_percent": 49.0
        },
        "components": {
          "expected_quality": -0.593,
          "regression_edge": -1.0,
          "xwoba_edge": -0.4286,
          "xba_edge": 0.1,
          "xslg_edge": -0.3429,
          "barrel_edge": -0.8222,
          "hard_hit_edge": -1.8143,
          "exit_velocity_edge": -2.08,
          "sweet_spot_edge": -0.2333,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "CF",
        "player_id": "682987",
        "player_name": "Spencer Jones",
        "offense_factor": 0.9889,
        "quality_score": -0.1479,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "682987",
          "espn_id": 4867424,
          "player_name": "Spencer Jones",
          "team": "NYY",
          "role": "batter",
          "espn_rank": 282,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 282,
            "gp_value": 18.0,
            "gp_rank": 429,
            "ab_value": 46.0,
            "ab_rank": 418,
            "r_value": 4.0,
            "r_rank": 435,
            "h_value": 11.0,
            "h_rank": 405,
            "avg_value": 0.2391304,
            "avg_rank": null,
            "2b_value": 1.0,
            "2b_rank": 430,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 2.0,
            "hr_rank": 301,
            "rbi_value": 7.0,
            "rbi_rank": 365,
            "tb_value": 18.0,
            "tb_rank": 2126,
            "bb_value": 7.0,
            "bb_rank": 333,
            "so_value": 21.0,
            "so_rank": 344,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3396226,
            "obp_rank": "-",
            "slg_value": 0.3913043,
            "slg_rank": "-",
            "ops_value": 0.7309269,
            "ops_rank": null,
            "war_value": 0.17,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 26.0,
          "k_percent": 39.6,
          "bb_percent": 13.2,
          "woba": 0.329,
          "xwoba": 0.287,
          "xba": 0.189,
          "xslg": 0.337,
          "sweet_spot_percent": 28.0,
          "barrel_batted_rate": 4.2,
          "hard_hit_percent": 75.0,
          "exit_velocity_avg": 97.5,
          "launch_angle_avg": 15.1,
          "whiff_percent": 37.1,
          "swing_percent": 52.8
        },
        "components": {
          "expected_quality": -0.1869,
          "regression_edge": -1.2,
          "xwoba_edge": -0.4857,
          "xba_edge": -1.4143,
          "xslg_edge": -0.5,
          "barrel_edge": -0.5778,
          "hard_hit_edge": 2.5,
          "exit_velocity_edge": 2.5,
          "sweet_spot_edge": -0.8833,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "3B",
        "player_id": "641857",
        "player_name": "Ryan McMahon",
        "offense_factor": 1.0108,
        "quality_score": 0.1443,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "641857",
          "espn_id": 33247,
          "player_name": "Ryan McMahon",
          "team": "NYY",
          "role": "batter",
          "espn_rank": 411,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 411,
            "gp_value": 66.0,
            "gp_rank": 132,
            "ab_value": 177.0,
            "ab_rank": 195,
            "r_value": 18.0,
            "r_rank": 232,
            "h_value": 37.0,
            "h_rank": 220,
            "avg_value": 0.2090395,
            "avg_rank": null,
            "2b_value": 4.0,
            "2b_rank": 307,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 22.0,
            "rbi_rank": 190,
            "tb_value": 62.0,
            "tb_rank": 1272,
            "bb_value": 15.0,
            "bb_rank": 204,
            "so_value": 59.0,
            "so_rank": 89,
            "sb_value": 3.0,
            "sb_rank": 148,
            "obp_value": 0.2708333,
            "obp_rank": "-",
            "slg_value": 0.3502824,
            "slg_rank": "-",
            "ops_value": 0.6211157,
            "ops_rank": null,
            "war_value": -0.12,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 149.0,
          "k_percent": 30.6,
          "bb_percent": 7.8,
          "woba": 0.277,
          "xwoba": 0.297,
          "xba": 0.228,
          "xslg": 0.389,
          "sweet_spot_percent": 29.4,
          "barrel_batted_rate": 10.3,
          "hard_hit_percent": 49.2,
          "exit_velocity_avg": 90.6,
          "launch_angle_avg": 12.0,
          "whiff_percent": 32.2,
          "swing_percent": 46.1
        },
        "components": {
          "expected_quality": 0.1547,
          "regression_edge": 0.5714,
          "xwoba_edge": -0.2,
          "xba_edge": -0.3,
          "xslg_edge": 0.2429,
          "barrel_edge": 0.7778,
          "hard_hit_edge": 1.5286,
          "exit_velocity_edge": 0.72,
          "sweet_spot_edge": -0.65,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "C",
        "player_id": "641555",
        "player_name": "J.C. Escarra",
        "offense_factor": 0.977,
        "quality_score": -0.3063,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "641555",
          "espn_id": 41644,
          "player_name": "J.C. Escarra",
          "team": "NYY",
          "role": "batter",
          "espn_rank": 326,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 326,
            "gp_value": 29.0,
            "gp_rank": 364,
            "ab_value": 77.0,
            "ab_rank": 366,
            "r_value": 8.0,
            "r_rank": 370,
            "h_value": 15.0,
            "h_rank": 370,
            "avg_value": 0.1948051,
            "avg_rank": null,
            "2b_value": 5.0,
            "2b_rank": 259,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 0.0,
            "hr_rank": 441,
            "rbi_value": 7.0,
            "rbi_rank": 365,
            "tb_value": 22.0,
            "tb_rank": 2096,
            "bb_value": 6.0,
            "bb_rank": 359,
            "so_value": 18.0,
            "so_rank": 370,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.25,
            "obp_rank": "-",
            "slg_value": 0.2857142,
            "slg_rank": "-",
            "ops_value": 0.5357142,
            "ops_rank": null,
            "war_value": 0.04,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 60.0,
          "k_percent": 21.4,
          "bb_percent": 7.1,
          "woba": 0.24,
          "xwoba": 0.261,
          "xba": 0.208,
          "xslg": 0.305,
          "sweet_spot_percent": 28.3,
          "barrel_batted_rate": 3.4,
          "hard_hit_percent": 33.3,
          "exit_velocity_avg": 88.7,
          "launch_angle_avg": 8.4,
          "whiff_percent": 29.7,
          "swing_percent": 45.0
        },
        "components": {
          "expected_quality": -0.8891,
          "regression_edge": 0.6,
          "xwoba_edge": -1.2286,
          "xba_edge": -0.8714,
          "xslg_edge": -0.9571,
          "barrel_edge": -0.7556,
          "hard_hit_edge": -0.7429,
          "exit_velocity_edge": -0.04,
          "sweet_spot_edge": -0.8333,
          "launch_angle_hr_bonus": 0.0
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "away": {
    "applied": true,
    "offense_factor": 1.0162,
    "raw_average_factor": 1.0183,
    "team_espn_average_rank": 233.75,
    "coverage_weight": 0.8889,
    "covered_batters": 8,
    "missing_batters": 1,
    "players": [
      {
        "position": "1B",
        "player_id": "678246",
        "player_name": "Miguel Vargas",
        "offense_factor": 1.1303,
        "quality_score": 1.737,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "678246",
          "espn_id": 42453,
          "player_name": "Miguel Vargas",
          "team": "CHW",
          "role": "batter",
          "espn_rank": 27,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 27,
            "gp_value": 71.0,
            "gp_rank": 49,
            "ab_value": 258.0,
            "ab_rank": 75,
            "r_value": 51.0,
            "r_rank": 7,
            "h_value": 63.0,
            "h_rank": 84,
            "avg_value": 0.244186,
            "avg_rank": 102.0,
            "2b_value": 12.0,
            "2b_rank": 80,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 16.0,
            "hr_rank": 17,
            "rbi_value": 44.0,
            "rbi_rank": 23,
            "tb_value": 125.0,
            "tb_rank": 359,
            "bb_value": 45.0,
            "bb_rank": 12,
            "so_value": 51.0,
            "so_rank": 129,
            "sb_value": 10.0,
            "sb_rank": 37,
            "obp_value": 0.3645161,
            "obp_rank": "35",
            "slg_value": 0.4844961,
            "slg_rank": "36",
            "ops_value": 0.8490122,
            "ops_rank": 71.0,
            "war_value": 2.55,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 234.0,
          "k_percent": 16.4,
          "bb_percent": 14.5,
          "woba": 0.371,
          "xwoba": 0.401,
          "xba": 0.273,
          "xslg": 0.542,
          "sweet_spot_percent": 42.1,
          "barrel_batted_rate": 14.4,
          "hard_hit_percent": 45.2,
          "exit_velocity_avg": 90.1,
          "launch_angle_avg": 19.7,
          "whiff_percent": 20.2,
          "swing_percent": 44.5
        },
        "components": {
          "expected_quality": 1.8802,
          "regression_edge": 0.8571,
          "xwoba_edge": 2.5,
          "xba_edge": 0.9857,
          "xslg_edge": 2.4286,
          "barrel_edge": 1.6889,
          "hard_hit_edge": 0.9571,
          "exit_velocity_edge": 0.52,
          "sweet_spot_edge": 1.4667,
          "launch_angle_hr_bonus": 0.45
        }
      },
      {
        "position": "3B",
        "player_id": "695657",
        "player_name": "Colson Montgomery",
        "offense_factor": 1.0374,
        "quality_score": 0.4986,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "695657",
          "espn_id": 4872685,
          "player_name": "Colson Montgomery",
          "team": "CHW",
          "role": "batter",
          "espn_rank": 36,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 36,
            "gp_value": 69.0,
            "gp_rank": 83,
            "ab_value": 253.0,
            "ab_rank": 87,
            "r_value": 35.0,
            "r_rank": 73,
            "h_value": 57.0,
            "h_rank": 109,
            "avg_value": 0.2252964,
            "avg_rank": 136.0,
            "2b_value": 13.0,
            "2b_rank": 61,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 19.0,
            "hr_rank": 9,
            "rbi_value": 44.0,
            "rbi_rank": 23,
            "tb_value": 127.0,
            "tb_rank": 531,
            "bb_value": 26.0,
            "bb_rank": 82,
            "so_value": 87.0,
            "so_rank": 12,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3194444,
            "obp_rank": "98",
            "slg_value": 0.5019762,
            "slg_rank": "28",
            "ops_value": 0.8214206,
            "ops_rank": 126.0,
            "war_value": 2.3,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 221.0,
          "k_percent": 30.2,
          "bb_percent": 9.0,
          "woba": 0.353,
          "xwoba": 0.328,
          "xba": 0.217,
          "xslg": 0.447,
          "sweet_spot_percent": 34.9,
          "barrel_batted_rate": 13.9,
          "hard_hit_percent": 46.7,
          "exit_velocity_avg": 90.2,
          "launch_angle_avg": 20.4,
          "whiff_percent": 37.7,
          "swing_percent": 52.4
        },
        "components": {
          "expected_quality": 0.6961,
          "regression_edge": -0.7143,
          "xwoba_edge": 0.6857,
          "xba_edge": -0.6143,
          "xslg_edge": 1.0714,
          "barrel_edge": 1.5778,
          "hard_hit_edge": 1.1714,
          "exit_velocity_edge": 0.56,
          "sweet_spot_edge": 0.2667,
          "launch_angle_hr_bonus": 0.45
        }
      },
      {
        "position": "DH",
        "player_id": "545341",
        "player_name": "Randal Grichuk",
        "offense_factor": 1.0632,
        "quality_score": 0.8423,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "545341",
          "espn_id": 31399,
          "player_name": "Randal Grichuk",
          "team": "CHW",
          "role": "batter",
          "espn_rank": 290,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 290,
            "gp_value": 45.0,
            "gp_rank": 266,
            "ab_value": 93.0,
            "ab_rank": 338,
            "r_value": 17.0,
            "r_rank": 240,
            "h_value": 25.0,
            "h_rank": 297,
            "avg_value": 0.2688172,
            "avg_rank": null,
            "2b_value": 6.0,
            "2b_rank": 235,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 6.0,
            "hr_rank": 156,
            "rbi_value": 19.0,
            "rbi_rank": 216,
            "tb_value": 49.0,
            "tb_rank": 1388,
            "bb_value": 4.0,
            "bb_rank": 406,
            "so_value": 22.0,
            "so_rank": 331,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3030303,
            "obp_rank": "-",
            "slg_value": 0.5268817,
            "slg_rank": "-",
            "ops_value": 0.829912,
            "ops_rank": null,
            "war_value": 0.14,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 70.0,
          "k_percent": 22.2,
          "bb_percent": 4.0,
          "woba": 0.354,
          "xwoba": 0.393,
          "xba": 0.318,
          "xslg": 0.57,
          "sweet_spot_percent": 48.6,
          "barrel_batted_rate": 13.9,
          "hard_hit_percent": 47.2,
          "exit_velocity_avg": 91.0,
          "launch_angle_avg": 14.5,
          "whiff_percent": 23.7,
          "swing_percent": 49.0
        },
        "components": {
          "expected_quality": 1.9951,
          "regression_edge": 1.1143,
          "xwoba_edge": 2.5,
          "xba_edge": 2.2714,
          "xslg_edge": 2.5,
          "barrel_edge": 1.5778,
          "hard_hit_edge": 1.2429,
          "exit_velocity_edge": 0.88,
          "sweet_spot_edge": 2.5,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "2B",
        "player_id": "805367",
        "player_name": "Chase Meidroth",
        "offense_factor": 0.9688,
        "quality_score": -0.4164,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "805367",
          "espn_id": 5136929,
          "player_name": "Chase Meidroth",
          "team": "CHW",
          "role": "batter",
          "espn_rank": 68,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 68,
            "gp_value": 70.0,
            "gp_rank": 72,
            "ab_value": 263.0,
            "ab_rank": 59,
            "r_value": 43.0,
            "r_rank": 34,
            "h_value": 73.0,
            "h_rank": 37,
            "avg_value": 0.2775665,
            "avg_rank": 40.0,
            "2b_value": 14.0,
            "2b_rank": 45,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 6.0,
            "hr_rank": 156,
            "rbi_value": 25.0,
            "rbi_rank": 161,
            "tb_value": 105.0,
            "tb_rank": 938,
            "bb_value": 27.0,
            "bb_rank": 75,
            "so_value": 68.0,
            "so_rank": 50,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.3469387,
            "obp_rank": "58",
            "slg_value": 0.3992395,
            "slg_rank": "106",
            "ops_value": 0.7461782,
            "ops_rank": 164.0,
            "war_value": 1.69,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 219.0,
          "k_percent": 22.7,
          "bb_percent": 9.0,
          "woba": 0.333,
          "xwoba": 0.293,
          "xba": 0.234,
          "xslg": 0.336,
          "sweet_spot_percent": 32.8,
          "barrel_batted_rate": 5.1,
          "hard_hit_percent": 36.0,
          "exit_velocity_avg": 87.8,
          "launch_angle_avg": 7.0,
          "whiff_percent": 19.6,
          "swing_percent": 41.1
        },
        "components": {
          "expected_quality": -0.3004,
          "regression_edge": -1.1429,
          "xwoba_edge": -0.3143,
          "xba_edge": -0.1286,
          "xslg_edge": -0.5143,
          "barrel_edge": -0.3778,
          "hard_hit_edge": -0.3571,
          "exit_velocity_edge": -0.4,
          "sweet_spot_edge": -0.0833,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "C",
        "player_id": "700337",
        "player_name": "Edgar Quero",
        "offense_factor": 0.9654,
        "quality_score": -0.4616,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "700337",
          "espn_id": 4917824,
          "player_name": "Edgar Quero",
          "team": "CHW",
          "role": "batter",
          "espn_rank": 533,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 533,
            "gp_value": 51.0,
            "gp_rank": 228,
            "ab_value": 137.0,
            "ab_rank": 258,
            "r_value": 12.0,
            "r_rank": 310,
            "h_value": 27.0,
            "h_rank": 283,
            "avg_value": 0.1970802,
            "avg_rank": null,
            "2b_value": 1.0,
            "2b_rank": 430,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 2.0,
            "hr_rank": 301,
            "rbi_value": 15.0,
            "rbi_rank": 262,
            "tb_value": 34.0,
            "tb_rank": 2004,
            "bb_value": 12.0,
            "bb_rank": 253,
            "so_value": 39.0,
            "so_rank": 204,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.2675159,
            "obp_rank": "-",
            "slg_value": 0.2481751,
            "slg_rank": "-",
            "ops_value": 0.515691,
            "ops_rank": null,
            "war_value": -0.53,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 120.0,
          "k_percent": 24.5,
          "bb_percent": 7.5,
          "woba": 0.238,
          "xwoba": 0.253,
          "xba": 0.2,
          "xslg": 0.275,
          "sweet_spot_percent": 26.7,
          "barrel_batted_rate": 1.9,
          "hard_hit_percent": 34.3,
          "exit_velocity_avg": 91.0,
          "launch_angle_avg": 9.2,
          "whiff_percent": 24.8,
          "swing_percent": 48.9
        },
        "components": {
          "expected_quality": -1.0537,
          "regression_edge": 0.4286,
          "xwoba_edge": -1.4571,
          "xba_edge": -1.1,
          "xslg_edge": -1.3857,
          "barrel_edge": -1.0889,
          "hard_hit_edge": -0.6,
          "exit_velocity_edge": 0.88,
          "sweet_spot_edge": -1.1,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "RF",
        "player_id": "695731",
        "player_name": "Braden Montgomery",
        "offense_factor": 1.0137,
        "quality_score": 0.1828,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "695731",
          "espn_id": 4950345,
          "player_name": "Braden Montgomery",
          "team": "CHW",
          "role": "batter",
          "espn_rank": 371,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 371,
            "gp_value": 7.0,
            "gp_rank": 514,
            "ab_value": 27.0,
            "ab_rank": 476,
            "r_value": 4.0,
            "r_rank": 435,
            "h_value": 6.0,
            "h_rank": 457,
            "avg_value": 0.2222222,
            "avg_rank": null,
            "2b_value": 2.0,
            "2b_rank": 387,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 1.0,
            "hr_rank": 365,
            "rbi_value": 4.0,
            "rbi_rank": 429,
            "tb_value": 11.0,
            "tb_rank": 2327,
            "bb_value": 1.0,
            "bb_rank": 472,
            "so_value": 8.0,
            "so_rank": 460,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.25,
            "obp_rank": "-",
            "slg_value": 0.4074074,
            "slg_rank": "-",
            "ops_value": 0.6574074,
            "ops_rank": null,
            "war_value": -0.04,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 0.0,
          "k_percent": 28.6,
          "bb_percent": 3.6,
          "woba": 0.285,
          "xwoba": 0.299,
          "xba": 0.256,
          "xslg": 0.412,
          "sweet_spot_percent": 42.1,
          "barrel_batted_rate": 10.5,
          "hard_hit_percent": 47.4,
          "exit_velocity_avg": 91.9,
          "launch_angle_avg": 4.8,
          "whiff_percent": 26.0,
          "swing_percent": 50.5
        },
        "components": {
          "expected_quality": 0.4073,
          "regression_edge": 0.4,
          "xwoba_edge": -0.1429,
          "xba_edge": 0.5,
          "xslg_edge": 0.5714,
          "barrel_edge": 0.8222,
          "hard_hit_edge": 1.2714,
          "exit_velocity_edge": 1.24,
          "sweet_spot_edge": 1.4667,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "CF",
        "player_id": "671976",
        "player_name": "Tristan Peters",
        "offense_factor": 0.9826,
        "quality_score": -0.2314,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "671976",
          "espn_id": 5085893,
          "player_name": "Tristan Peters",
          "team": "CHW",
          "role": "batter",
          "espn_rank": 44,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 44,
            "gp_value": 69.0,
            "gp_rank": 83,
            "ab_value": 180.0,
            "ab_rank": 188,
            "r_value": 22.0,
            "r_rank": 191,
            "h_value": 53.0,
            "h_rank": 132,
            "avg_value": 0.2944444,
            "avg_rank": null,
            "2b_value": 15.0,
            "2b_rank": 27,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 3.0,
            "hr_rank": 243,
            "rbi_value": 21.0,
            "rbi_rank": 194,
            "tb_value": 81.0,
            "tb_rank": 922,
            "bb_value": 15.0,
            "bb_rank": 204,
            "so_value": 37.0,
            "so_rank": 218,
            "sb_value": 4.0,
            "sb_rank": 124,
            "obp_value": 0.3553299,
            "obp_rank": "-",
            "slg_value": 0.45,
            "slg_rank": "-",
            "ops_value": 0.8053299,
            "ops_rank": null,
            "war_value": 2.15,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 141.0,
          "k_percent": 18.4,
          "bb_percent": 7.5,
          "woba": 0.354,
          "xwoba": 0.305,
          "xba": 0.252,
          "xslg": 0.369,
          "sweet_spot_percent": 32.7,
          "barrel_batted_rate": 4.8,
          "hard_hit_percent": 27.4,
          "exit_velocity_avg": 86.4,
          "launch_angle_avg": 13.5,
          "whiff_percent": 22.7,
          "swing_percent": 56.9
        },
        "components": {
          "expected_quality": -0.1919,
          "regression_edge": -1.4,
          "xwoba_edge": 0.0286,
          "xba_edge": 0.3857,
          "xslg_edge": -0.0429,
          "barrel_edge": -0.4444,
          "hard_hit_edge": -1.5857,
          "exit_velocity_edge": -0.96,
          "sweet_spot_edge": -0.1,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "SS",
        "player_id": "682668",
        "player_name": "Luisangel Acuña",
        "offense_factor": 0.9847,
        "quality_score": -0.2044,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "682668",
          "espn_id": 42411,
          "player_name": "Luisangel Acuna",
          "team": "CHW",
          "role": "batter",
          "espn_rank": 501,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 501,
            "gp_value": 51.0,
            "gp_rank": 228,
            "ab_value": 119.0,
            "ab_rank": 283,
            "r_value": 13.0,
            "r_rank": 302,
            "h_value": 24.0,
            "h_rank": 306,
            "avg_value": 0.2016806,
            "avg_rank": null,
            "2b_value": 2.0,
            "2b_rank": 387,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 0.0,
            "hr_rank": 441,
            "rbi_value": 8.0,
            "rbi_rank": 346,
            "tb_value": 26.0,
            "tb_rank": 2404,
            "bb_value": 7.0,
            "bb_rank": 333,
            "so_value": 23.0,
            "so_rank": 322,
            "sb_value": 12.0,
            "sb_rank": 21,
            "obp_value": 0.248062,
            "obp_rank": "-",
            "slg_value": 0.2184873,
            "slg_rank": "-",
            "ops_value": 0.4665493,
            "ops_rank": null,
            "war_value": -0.39,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 104.0,
          "k_percent": 17.7,
          "bb_percent": 5.4,
          "woba": 0.216,
          "xwoba": 0.267,
          "xba": 0.239,
          "xslg": 0.305,
          "sweet_spot_percent": 19.2,
          "barrel_batted_rate": 3.0,
          "hard_hit_percent": 38.4,
          "exit_velocity_avg": 89.4,
          "launch_angle_avg": 1.8,
          "whiff_percent": 24.1,
          "swing_percent": 49.9
        },
        "components": {
          "expected_quality": -0.7399,
          "regression_edge": 1.4571,
          "xwoba_edge": -1.0571,
          "xba_edge": 0.0143,
          "xslg_edge": -0.9571,
          "barrel_edge": -0.8444,
          "hard_hit_edge": -0.0143,
          "exit_velocity_edge": 0.24,
          "sweet_spot_edge": -2.35,
          "launch_angle_hr_bonus": 0.0
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "reason": "Baseball Savant hitter xwOBA, xBA, xSLG, exit velocity, launch angle, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted offense; ESPN rank is attached for reporting only"
}

Savant Pitcher Quality

Source: data/all_players_stats.csv embedded Savant pitcher and movement features. Starter quality modifies opposing run scoring and pitcher strikeout/walk/homer expectations.

TeamPitcherAvailableESPN RankQualitySample WtRun PrevK FactorBB FactorHR FactorRegressionxwOBAwOBAK%BB%Whiff%Barrel%HardHit%
Away CHWTrue780.07920.45000.99330.98641.00720.9524neutral0.29800.2850201022.903.2035.10
Home NYYTrue141-0.07330.91201.00621.02550.95801.0997neutral0.32300.312026.606.9026.501241.60

Pitch Movement And Arsenal

TeamPitcherMovement AvailablePrimary PitchPitchesVeloSpinAxisHBIVBDropRel XRel ZExtensionArm AngleMovement Score
Away CHWTrueNone1588.86214900000000-0.0488
Home NYYTrueNone9589.34230500000000-0.0217
Run FactorValue
away_runs_vs_home_pitcher1.0057
home_runs_vs_away_pitcher0.9970
home_pitcher_quality_edge-0.1525
Raw Savant Pitcher Quality JSON
{
  "applied": true,
  "home_pitcher": {
    "available": true,
    "pitcher_id": "677960",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 228.0,
      "k_percent": 26.6,
      "bb_percent": 6.9,
      "woba": 0.312,
      "xwoba": 0.323,
      "sweet_spot_percent": 30.2,
      "barrel_batted_rate": 12.0,
      "hard_hit_percent": 41.6,
      "avg_best_speed": 77.3552,
      "avg_hyper_speed": 94.9106,
      "whiff_percent": 26.5,
      "swing_percent": 44.1
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": -0.2786,
      "command_and_miss": 0.4186,
      "regression_edge": -0.3143,
      "xwoba_edge": -0.2286,
      "barrel_edge": -1.0444,
      "hard_hit_edge": -0.4714,
      "whiff_edge": 0.1143,
      "bb_edge": 0.575,
      "pitch_design_score": -0.0217
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "677960",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 95,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 95,
        "pitch_usage": 0.0,
        "release_speed": 89.34212627065457,
        "release_spin_rate": 2304.6615057998483,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 95,
          "pitch_usage": 0.0,
          "release_speed": 89.34212627065457,
          "release_spin_rate": 2304.6615057998483,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 89.3421,
        "release_spin_rate": 2304.6615,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": -0.0217,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": -0.1547,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": -0.0733,
    "sample_weight": 0.912,
    "run_prevention_factor": 1.0062,
    "strikeout_factor": 1.0255,
    "walk_factor": 0.958,
    "homer_factor": 1.0997,
    "woba_minus_xwoba": -0.011,
    "regression_flag": "neutral",
    "espn_rank": {
      "available": true,
      "player_id": "677960",
      "espn_id": 41178,
      "player_name": "Ryan Weathers",
      "team": "NYY",
      "role": "pitcher",
      "espn_rank": 141,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 141,
        "gp_value": 13.0,
        "gp_rank": 329,
        "gs_value": 13.0,
        "gs_rank": 69,
        "qs_value": 4.0,
        "qs_rank": 73,
        "era_value": 4.3587,
        "era_rank": 55.0,
        "w_value": 2.0,
        "w_rank": 180,
        "l_value": 5.0,
        "l_rank": 36,
        "sv_value": 0.0,
        "sv_rank": 172,
        "hld_value": 0.0,
        "hld_rank": 256,
        "ip_value": 74.1,
        "ip_rank": 59,
        "h_value": 66.0,
        "h_rank": 74,
        "er_value": 36.0,
        "er_rank": 46,
        "hr_value": 15.0,
        "hr_rank": 10,
        "bb_value": 21.0,
        "bb_rank": 109,
        "k_value": 81.0,
        "k_rank": 27,
        "k_per_9_value": 9.807175,
        "k_per_9_rank": 12,
        "whip_value": 1.1704,
        "whip_rank": 32.0,
        "war_value": 0.73,
        "war_rank": 1.0
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "away_pitcher": {
    "available": true,
    "pitcher_id": "663542",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 92.0,
      "k_percent": 20.0,
      "bb_percent": 10.0,
      "woba": 0.285,
      "xwoba": 0.298,
      "sweet_spot_percent": 30.9,
      "barrel_batted_rate": 3.2,
      "hard_hit_percent": 35.1,
      "avg_best_speed": 77.8823,
      "avg_hyper_speed": 93.2665,
      "whiff_percent": 22.9,
      "swing_percent": 46.2
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": 0.5459,
      "command_and_miss": -0.3407,
      "regression_edge": -0.3714,
      "xwoba_edge": 0.4857,
      "barrel_edge": 0.9111,
      "hard_hit_edge": 0.4571,
      "whiff_edge": -0.4,
      "bb_edge": -0.2,
      "pitch_design_score": -0.0488
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "663542",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 15,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 15,
        "pitch_usage": 0.0,
        "release_speed": 88.8567107177423,
        "release_spin_rate": 2148.503349502572,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 15,
          "pitch_usage": 0.0,
          "release_speed": 88.8567107177423,
          "release_spin_rate": 2148.503349502572,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 88.8567,
        "release_spin_rate": 2148.5033,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": -0.0488,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": -0.3489,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": 0.0792,
    "sample_weight": 0.45,
    "run_prevention_factor": 0.9933,
    "strikeout_factor": 0.9864,
    "walk_factor": 1.0072,
    "homer_factor": 0.9524,
    "woba_minus_xwoba": -0.013,
    "regression_flag": "neutral",
    "espn_rank": {
      "available": true,
      "player_id": "663542",
      "espn_id": 4991171,
      "player_name": "Bryan Hudson",
      "team": "CHW",
      "role": "pitcher",
      "espn_rank": 78,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 78,
        "gp_value": 34.0,
        "gp_rank": 13,
        "gs_value": 4.0,
        "gs_rank": 175,
        "qs_value": 0.0,
        "qs_rank": 175,
        "era_value": 2.4545,
        "era_rank": null,
        "w_value": 3.0,
        "w_rank": 107,
        "l_value": 2.0,
        "l_rank": 185,
        "sv_value": 3.0,
        "sv_rank": 45,
        "hld_value": 4.0,
        "hld_rank": 121,
        "ip_value": 33.0,
        "ip_rank": 208,
        "h_value": 28.0,
        "h_rank": 233,
        "er_value": 9.0,
        "er_rank": 360,
        "hr_value": 1.0,
        "hr_rank": 453,
        "bb_value": 14.0,
        "bb_rank": 209,
        "k_value": 28.0,
        "k_rank": 268,
        "k_per_9_value": 7.6363635,
        "k_per_9_rank": 34,
        "whip_value": 1.2727,
        "whip_rank": null,
        "war_value": 1.14,
        "war_rank": null
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "run_factors": {
    "away_runs_vs_home_pitcher": 1.0057,
    "home_runs_vs_away_pitcher": 0.997,
    "home_pitcher_quality_edge": -0.1525
  },
  "score_before": {
    "away_runs": 3.3419,
    "home_runs": 1.4335
  },
  "score_after": {
    "away_runs": 3.3608,
    "home_runs": 1.4292,
    "home_win_probability": 0.3331
  },
  "reason": "Baseball Savant xwOBA, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted starter run prevention"
}

Team Form Snapshot

TeamLast-10 W-LWin %R/GRA/GRun DiffStreakOffenseDefense
Away CHW21-460.3131.302.30-68coldstrong
Home NYY19-380.3331.602.80-69coldstrong

Season Run Differential

TeamRecordWin %Run DiffRD/GameAvailable
Away CHW38-340.528-3-0.042True
Home NYY45-270.6251221.694True
Signal--1.7361.882applied=True

Recent Head-to-Head

DateMatchupScoreWinnerMarginType
------

Player/Game Reconciliation

LayerABHRHRRBIBBSO
Game target CHW--4----
Game target NYY--3----
Player finalized CHW31940119
Player finalized NYY32960639
Player model fractional CHW30.196.763.841.043.662.517.56
Player model fractional NYY31.758.104.811.585.303.257.56
Simulation box CHW33741427
Simulation box NYY371030348

If player finalized rows and game target disagree, the report now exposes that gap instead of hiding it. Fractional model rows show the unrounded prop layer before box-score realization.

Pitching Snapshot

TeamRolePitcherPre IPPre ERPre SOPre HPre BBWeighted ERAWeighted WHIPBox Sync
Away CHWStarterBryan Hudson504333.581.29True
Away CHWMiddle RelieverBrandon Eisert102003.581.13True
Away CHWMiddle RelieverGrant Taylor100103.641.27True
Away CHWMiddle RelieverSean Newcomb121414.781.37True
Away CHWMiddle RelieverSeranthony Domínguez111204.961.42True
Home NYYStarterRyan Weathers5.2044625.181.23True
Home NYYMiddle RelieverCamilo Doval101003.491.25True
Home NYYMiddle RelieverDavid Bednar1.1000103.101.14True
Home NYYMiddle RelieverFernando Cruz102002.981.28True
Market-line comparison is not rendered because no local odds or sportsbook line CSV was found in data/. Add a real odds source before using market deltas as a model feature.

Player Boost/Deboost Impact Summary

SideTeamRolePosPlayerDominantChangedBoostedDeboostedBetterWorseLargest MetricLargest DeltaDirectionEffect
awayCHWbatter1BMiguel Vargasbetter105564predicted_RBI2.5000boostbetter
homeNYYbatter3BRyan McMahonworse1129110predicted_SO2.0170boostworse
awayCHWpitcherStarterBryan Hudsonworse10101predicted_IP-2.0000deboostworse
homeNYYbatterCJ.C. Escarrabetter116574predicted_2B1.8000boostbetter
awayCHWbatterSSLuisangel Acuñaworse103728predicted_SO1.4770boostworse
homeNYYbatterLFCody Bellingerworse105546predicted_SO1.4650boostworse
awayCHWbatterCFTristan Petersworse103728predicted_SO1.4030boostworse
homeNYYbatterCFSpencer Jonesbetter118392predicted_AB1.4000boostbetter
homeNYYbatter2BJazz Chisholm Jr.better1192101predicted_SO-1.1910deboostbetter
homeNYYbatterDHPaul Goldschmidtworse93645predicted_AB1.1800boostbetter
homeNYYbatterSSJosé Caballeroworse114756predicted_H1.1800boostbetter
awayCHWbatterLFJunior Perezworse114738predicted_H1.1550boostbetter
homeNYYbatter1BBen Riceworse104646predicted_H-1.0300deboostworse
awayCHWbatter2BChase Meidrothworse113847predicted_SO-0.9860deboostbetter
awayCHWbatterCEdgar Queroworse101928predicted_AB0.9560boostbetter
awayCHWpitcherMiddle RelieverSean Newcombbetter11010predicted_IP0.9000boostbetter
awayCHWpitcherMiddle RelieverSeranthony Domínguezbetter11010predicted_IP0.9000boostbetter
awayCHWbatter3BColson Montgomeryworse112938predicted_H-0.8700deboostworse
homeNYYbatterRFJasson Domínguezworse105546predicted_BB0.8180boostbetter
awayCHWbatterRFBraden Montgomeryworse113847predicted_2B0.7140boostbetter
awayCHWbatterDHRandal Grichukdeboosted104655predicted_SO-0.5910deboostbetter
homeNYYpitcherStarterRyan Weathersworse10101predicted_IP-0.4667deboostworse
homeNYYpitcherMiddle RelieverDavid Bednarbetter11010predicted_IP0.1000boostbetter

This table ranks players whose JSON evolution changed materially. Boost/deboost is numeric movement; better/worse is role-aware.

Away Team: CHW

Away Pitcher Deep Analysis

FieldValue
PitcherBryan Hudson
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score0.0792
ESPN Rank78
Movement AvailableTrue
Primary Pitch-
Movement Score-0.0488
Avg Velo88.8567
Avg Spin2148.5033
HB Inches0
IVB Inches0
Release Extension0
Pre IP5
Pre ER0
Pre H3
Pre BB3
Pre SO4
Season ERA1.5652
Season WHIP1.3478
Role Avg IP1
Recent Avg IP1
Last Start IP1
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "CHW",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 371.0,
    "runs_allowed": 387.0,
    "run_differential": -16.0,
    "run_differential_per_game": -0.2,
    "avg_runs_scored": 4.6375,
    "avg_runs_allowed": 4.8375,
    "offense_index": 1.0291,
    "defense_index": 0.9315,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.1,
      "avg_runs_allowed": 5.3,
      "run_differential": -12.0
    },
    "available": true,
    "quality_score": -0.035
  },
  "opponent": {
    "team": "NYY",
    "games": 82,
    "wins": 50,
    "losses": 32,
    "win_pct": 0.6098,
    "runs_scored": 410.0,
    "runs_allowed": 297.0,
    "run_differential": 113.0,
    "run_differential_per_game": 1.378,
    "avg_runs_scored": 5.0,
    "avg_runs_allowed": 3.622,
    "offense_index": 1.1096,
    "defense_index": 1.2441,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 8,
      "losses": 2,
      "win_pct": 0.8,
      "avg_runs_scored": 6.2,
      "avg_runs_allowed": 3.1,
      "run_differential": 31.0
    },
    "available": true,
    "quality_score": 0.3665
  },
  "edges": {
    "quality_edge": -0.4015,
    "offense_edge": 0.0291,
    "opponent_offense_edge": 0.1096,
    "defense_strength": -0.0685,
    "opponent_defense_weakness": -0.2441,
    "recent_win_pct_edge": -0.3
  },
  "player_factors": {
    "ip": 0.9775,
    "run_prevention": 1.0445,
    "strikeout": 0.9792
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "663542",
    "profile": {
      "available": true,
      "pitcher_id": "663542",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 92.0,
        "k_percent": 20.0,
        "bb_percent": 10.0,
        "woba": 0.285,
        "xwoba": 0.298,
        "sweet_spot_percent": 30.9,
        "barrel_batted_rate": 3.2,
        "hard_hit_percent": 35.1,
        "avg_best_speed": 77.8823,
        "avg_hyper_speed": 93.2665,
        "whiff_percent": 22.9,
        "swing_percent": 46.2
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.5459,
        "command_and_miss": -0.3407,
        "regression_edge": -0.3714,
        "xwoba_edge": 0.4857,
        "barrel_edge": 0.9111,
        "hard_hit_edge": 0.4571,
        "whiff_edge": -0.4,
        "bb_edge": -0.2,
        "pitch_design_score": -0.0488
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "663542",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 15,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 15,
          "pitch_usage": 0.0,
          "release_speed": 88.8567107177423,
          "release_spin_rate": 2148.503349502572,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 15,
            "pitch_usage": 0.0,
            "release_speed": 88.8567107177423,
            "release_spin_rate": 2148.503349502572,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 88.8567,
          "release_spin_rate": 2148.5033,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.0488,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -0.3489,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.0792,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9933,
      "strikeout_factor": 0.9864,
      "walk_factor": 1.0072,
      "homer_factor": 0.9524,
      "woba_minus_xwoba": -0.013,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "663542",
        "espn_id": 4991171,
        "player_name": "Bryan Hudson",
        "team": "CHW",
        "role": "pitcher",
        "espn_rank": 78,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 78,
          "gp_value": 34.0,
          "gp_rank": 13,
          "gs_value": 4.0,
          "gs_rank": 175,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.4545,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 2.0,
          "l_rank": 185,
          "sv_value": 3.0,
          "sv_rank": 45,
          "hld_value": 4.0,
          "hld_rank": 121,
          "ip_value": 33.0,
          "ip_rank": 208,
          "h_value": 28.0,
          "h_rank": 233,
          "er_value": 9.0,
          "er_rank": 360,
          "hr_value": 1.0,
          "hr_rank": 453,
          "bb_value": 14.0,
          "bb_rank": 209,
          "k_value": 28.0,
          "k_rank": 268,
          "k_per_9_value": 7.6363635,
          "k_per_9_rank": 34,
          "whip_value": 1.2727,
          "whip_rank": null,
          "war_value": 1.14,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.997,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 2.0,
        "factor": 0.997,
        "adjusted": 2
      },
      "predicted_BB": {
        "original": 2.0,
        "factor": 1.0032,
        "adjusted": 2
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9786,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 5.0,
        "factor": 0.9939,
        "adjusted": 5
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.0,
    "ER": 2,
    "H": 10,
    "BB": 2,
    "SO": 7,
    "HR": 0,
    "ERA": 1.8,
    "WHIP": 1.2,
    "K9": 6.3,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-05-19T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "663542",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 15,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 15,
    "pitch_usage": 0.0,
    "release_speed": 88.8567107177423,
    "release_spin_rate": 2148.503349502572,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 15,
      "pitch_usage": 0.0,
      "release_speed": 88.8567107177423,
      "release_spin_rate": 2148.503349502572,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 88.8567,
    "release_spin_rate": 2148.5033,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.0488,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -0.3489,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.567,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4774,
    "prior_weight": 0.5226
  },
  "role": "pitcher",
  "player_id": "663542",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 24,
  "reference_playing_time": 7.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.0,
        "ER": 2.0,
        "R": 2.0,
        "H": 5.0,
        "BB": 1.0,
        "SO": 2.0,
        "HR": 0.0,
        "BF": 22.0,
        "Pitches": 69.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4,
        "R": 0.4,
        "H": 1.0,
        "BB": 0.2,
        "SO": 0.4,
        "HR": 0.0,
        "BF": 4.4,
        "Pitches": 13.8
      },
      "rates": {
        "ERA": 3.6,
        "WHIP": 1.2,
        "ER_per_IP": 0.4,
        "H_per_IP": 1.0,
        "BB_per_IP": 0.2,
        "SO_per_IP": 0.4,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.0,
        "ER": 2.0,
        "R": 2.0,
        "H": 10.0,
        "BB": 2.0,
        "SO": 7.0,
        "HR": 0.0,
        "BF": 42.0,
        "Pitches": 147.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 1.0,
        "BB": 0.2,
        "SO": 0.7,
        "HR": 0.0,
        "BF": 4.2,
        "Pitches": 14.7
      },
      "rates": {
        "ERA": 1.8,
        "WHIP": 1.2,
        "ER_per_IP": 0.2,
        "H_per_IP": 1.0,
        "BB_per_IP": 0.2,
        "SO_per_IP": 0.7,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 24,
      "totals": {
        "IP": 23.0,
        "ER": 4.0,
        "R": 5.0,
        "H": 21.0,
        "BB": 10.0,
        "SO": 23.0,
        "HR": 0.0,
        "BF": 99.0,
        "Pitches": 402.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.1667,
        "R": 0.2083,
        "H": 0.875,
        "BB": 0.4167,
        "SO": 0.9583,
        "HR": 0.0,
        "BF": 4.125,
        "Pitches": 16.75
      },
      "rates": {
        "ERA": 1.5652,
        "WHIP": 1.3478,
        "ER_per_IP": 0.17391,
        "H_per_IP": 0.91304,
        "BB_per_IP": 0.43478,
        "SO_per_IP": 1.0,
        "HR_per_IP": 0.0
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 4.0,
    "predicted_ER": 1.645,
    "predicted_H": 4.045,
    "predicted_BB": 1.272,
    "predicted_SO": 3.26,
    "predicted_HR": 0.315,
    "predicted_ERA": 3.5796,
    "predicted_WHIP": 1.2858
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5708,
  "form_weight": 0.4292,
  "form_reliability": 0.4774,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.567,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4774,
    "prior_weight": 0.5226
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 7.0,
      "form": 4.0,
      "final": 5.2,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 1.645,
      "final": 0.706,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 3.0,
      "form": 4.045,
      "final": 3.4485,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 3.0,
      "form": 1.272,
      "final": 2.2583,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 4.0,
      "form": 3.26,
      "final": 3.6824,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.315,
      "final": 0.1352,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.5796,
      "final": 3.5796,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2858,
      "final": 1.2858,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherBrandon Eisert
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.1575
ESPN Rank359
Movement AvailableTrue
Primary Pitch-
Movement Score-0.1961
Avg Velo86.2278
Avg Spin1900.0916
HB Inches0
IVB Inches0
Release Extension0
Pre IP1
Pre ER0
Pre H0
Pre BB0
Pre SO2
Season ERA3.5526
Season WHIP1.2632
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "CHW",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 371.0,
    "runs_allowed": 387.0,
    "run_differential": -16.0,
    "run_differential_per_game": -0.2,
    "avg_runs_scored": 4.6375,
    "avg_runs_allowed": 4.8375,
    "offense_index": 1.0291,
    "defense_index": 0.9315,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.1,
      "avg_runs_allowed": 5.3,
      "run_differential": -12.0
    },
    "available": true,
    "quality_score": -0.035
  },
  "opponent": {
    "team": "NYY",
    "games": 82,
    "wins": 50,
    "losses": 32,
    "win_pct": 0.6098,
    "runs_scored": 410.0,
    "runs_allowed": 297.0,
    "run_differential": 113.0,
    "run_differential_per_game": 1.378,
    "avg_runs_scored": 5.0,
    "avg_runs_allowed": 3.622,
    "offense_index": 1.1096,
    "defense_index": 1.2441,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 8,
      "losses": 2,
      "win_pct": 0.8,
      "avg_runs_scored": 6.2,
      "avg_runs_allowed": 3.1,
      "run_differential": 31.0
    },
    "available": true,
    "quality_score": 0.3665
  },
  "edges": {
    "quality_edge": -0.4015,
    "offense_edge": 0.0291,
    "opponent_offense_edge": 0.1096,
    "defense_strength": -0.0685,
    "opponent_defense_weakness": -0.2441,
    "recent_win_pct_edge": -0.3
  },
  "player_factors": {
    "ip": 0.9775,
    "run_prevention": 1.0445,
    "strikeout": 0.9792
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "685126",
    "profile": {
      "available": true,
      "pitcher_id": "685126",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 37.0,
        "k_percent": 26.0,
        "bb_percent": 8.2,
        "woba": 0.348,
        "xwoba": 0.285,
        "sweet_spot_percent": 35.4,
        "barrel_batted_rate": 6.3,
        "hard_hit_percent": 41.7,
        "avg_best_speed": 79.3011,
        "avg_hyper_speed": 94.2148,
        "whiff_percent": 30.2,
        "swing_percent": 46.4
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.0995,
        "command_and_miss": 0.5,
        "regression_edge": 1.8,
        "xwoba_edge": 0.8571,
        "barrel_edge": 0.2222,
        "hard_hit_edge": -0.4857,
        "whiff_edge": 0.6429,
        "bb_edge": 0.25,
        "pitch_design_score": -0.1961
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "685126",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 28,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 28,
          "pitch_usage": 0.0,
          "release_speed": 86.2278040716236,
          "release_spin_rate": 1900.0916148915665,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 28,
            "pitch_usage": 0.0,
            "release_speed": 86.2278040716236,
            "release_spin_rate": 1900.0916148915665,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 86.2278,
          "release_spin_rate": 1900.0916,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.1961,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -1.4005,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.1575,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9866,
      "strikeout_factor": 1.0206,
      "walk_factor": 0.991,
      "homer_factor": 0.9892,
      "woba_minus_xwoba": 0.063,
      "regression_flag": "positive_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "685126",
        "espn_id": 4228247,
        "player_name": "Brandon Eisert",
        "team": "CHW",
        "role": "pitcher",
        "espn_rank": 359,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 359,
          "gp_value": 16.0,
          "gp_rank": 220,
          "gs_value": 3.0,
          "gs_rank": 189,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 4.86,
          "era_rank": null,
          "w_value": 1.0,
          "w_rank": 287,
          "l_value": 0.0,
          "l_rank": 430,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 16.2,
          "ip_rank": 419,
          "h_value": 17.0,
          "h_rank": 386,
          "er_value": 9.0,
          "er_rank": 360,
          "hr_value": 3.0,
          "hr_rank": 258,
          "bb_value": 6.0,
          "bb_rank": 436,
          "k_value": 19.0,
          "k_rank": 363,
          "k_per_9_value": 10.26,
          "k_per_9_rank": 23,
          "whip_value": 1.38,
          "whip_rank": null,
          "war_value": 0.05,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.994,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.994,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.996,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9951,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0093,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.1,
    "ER": 1,
    "H": 5,
    "BB": 4,
    "SO": 11,
    "HR": 1,
    "ERA": 0.870967741935484,
    "WHIP": 0.870967741935484,
    "K9": 9.580645161290324,
    "HR9": 0.870967741935484,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-05T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "685126",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 28,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 28,
    "pitch_usage": 0.0,
    "release_speed": 86.2278040716236,
    "release_spin_rate": 1900.0916148915665,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 28,
      "pitch_usage": 0.0,
      "release_speed": 86.2278040716236,
      "release_spin_rate": 1900.0916148915665,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 86.2278,
    "release_spin_rate": 1900.0916,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.1961,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -1.4005,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 2.515,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.3347,
    "prior_weight": 0.6653
  },
  "role": "pitcher",
  "player_id": "685126",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 12,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.2,
        "ER": 1.0,
        "R": 1.0,
        "H": 2.0,
        "BB": 0.0,
        "SO": 6.0,
        "HR": 1.0,
        "BF": 19.0,
        "Pitches": 81.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.4,
        "BB": 0.0,
        "SO": 1.2,
        "HR": 0.2,
        "BF": 3.8,
        "Pitches": 16.2
      },
      "rates": {
        "ERA": 1.5882,
        "WHIP": 0.3529,
        "ER_per_IP": 0.17647,
        "H_per_IP": 0.35294,
        "BB_per_IP": 0.0,
        "SO_per_IP": 1.05882,
        "HR_per_IP": 0.17647
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.1,
        "ER": 1.0,
        "R": 1.0,
        "H": 5.0,
        "BB": 4.0,
        "SO": 11.0,
        "HR": 1.0,
        "BF": 40.0,
        "Pitches": 188.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.1,
        "R": 0.1,
        "H": 0.5,
        "BB": 0.4,
        "SO": 1.1,
        "HR": 0.1,
        "BF": 4.0,
        "Pitches": 18.8
      },
      "rates": {
        "ERA": 0.871,
        "WHIP": 0.871,
        "ER_per_IP": 0.09677,
        "H_per_IP": 0.48387,
        "BB_per_IP": 0.3871,
        "SO_per_IP": 1.06452,
        "HR_per_IP": 0.09677
      }
    },
    "season": {
      "games": 12,
      "totals": {
        "IP": 12.2,
        "ER": 5.0,
        "R": 5.0,
        "H": 11.0,
        "BB": 5.0,
        "SO": 13.0,
        "HR": 1.0,
        "BF": 54.0,
        "Pitches": 237.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4167,
        "R": 0.4167,
        "H": 0.9167,
        "BB": 0.4167,
        "SO": 1.0833,
        "HR": 0.0833,
        "BF": 4.5,
        "Pitches": 19.75
      },
      "rates": {
        "ERA": 3.5526,
        "WHIP": 1.2632,
        "ER_per_IP": 0.39474,
        "H_per_IP": 0.86842,
        "BB_per_IP": 0.39474,
        "SO_per_IP": 1.02632,
        "HR_per_IP": 0.07895
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.398,
    "predicted_H": 0.816,
    "predicted_BB": 0.313,
    "predicted_SO": 0.977,
    "predicted_HR": 0.14,
    "predicted_ERA": 3.5784,
    "predicted_WHIP": 1.1294
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.6311,
  "form_weight": 0.3689,
  "form_reliability": 0.3347,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 2.515,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.3347,
    "prior_weight": 0.6653
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.398,
      "final": 0.1468,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.816,
      "final": 0.301,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.313,
      "final": 0.1155,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 2.0,
      "form": 0.977,
      "final": 1.6226,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.14,
      "final": 0.0516,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.5784,
      "final": 3.5784,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1294,
      "final": 1.1294,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherGrant Taylor
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.4739
ESPN Rank89
Movement AvailableTrue
Primary Pitch-
Movement Score0.2754
Avg Velo94.6463
Avg Spin2483.6036
HB Inches0
IVB Inches0
Release Extension0
Pre IP1
Pre ER0
Pre H1
Pre BB0
Pre SO0
Season ERA1.4211
Season WHIP1.2632
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "CHW",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 371.0,
    "runs_allowed": 387.0,
    "run_differential": -16.0,
    "run_differential_per_game": -0.2,
    "avg_runs_scored": 4.6375,
    "avg_runs_allowed": 4.8375,
    "offense_index": 1.0291,
    "defense_index": 0.9315,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.1,
      "avg_runs_allowed": 5.3,
      "run_differential": -12.0
    },
    "available": true,
    "quality_score": -0.035
  },
  "opponent": {
    "team": "NYY",
    "games": 82,
    "wins": 50,
    "losses": 32,
    "win_pct": 0.6098,
    "runs_scored": 410.0,
    "runs_allowed": 297.0,
    "run_differential": 113.0,
    "run_differential_per_game": 1.378,
    "avg_runs_scored": 5.0,
    "avg_runs_allowed": 3.622,
    "offense_index": 1.1096,
    "defense_index": 1.2441,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 8,
      "losses": 2,
      "win_pct": 0.8,
      "avg_runs_scored": 6.2,
      "avg_runs_allowed": 3.1,
      "run_differential": 31.0
    },
    "available": true,
    "quality_score": 0.3665
  },
  "edges": {
    "quality_edge": -0.4015,
    "offense_edge": 0.0291,
    "opponent_offense_edge": 0.1096,
    "defense_strength": -0.0685,
    "opponent_defense_weakness": -0.2441,
    "recent_win_pct_edge": -0.3
  },
  "player_factors": {
    "ip": 0.9775,
    "run_prevention": 1.0445,
    "strikeout": 0.9792
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "691799",
    "profile": {
      "available": true,
      "pitcher_id": "691799",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 21.0,
        "k_percent": 35.1,
        "bb_percent": 6.1,
        "woba": 0.254,
        "xwoba": 0.231,
        "sweet_spot_percent": 31.0,
        "barrel_batted_rate": 7.0,
        "hard_hit_percent": 40.2,
        "avg_best_speed": 79.3848,
        "avg_hyper_speed": 93.8634,
        "whiff_percent": 29.3,
        "swing_percent": 50.3
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 1.1924,
        "command_and_miss": 1.145,
        "regression_edge": 0.6571,
        "xwoba_edge": 2.4,
        "barrel_edge": 0.0667,
        "hard_hit_edge": -0.2714,
        "whiff_edge": 0.5143,
        "bb_edge": 0.775,
        "pitch_design_score": 0.2754
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "691799",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 16,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 16,
          "pitch_usage": 0.0,
          "release_speed": 94.64628205128204,
          "release_spin_rate": 2483.6036324786323,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 16,
            "pitch_usage": 0.0,
            "release_speed": 94.64628205128204,
            "release_spin_rate": 2483.6036324786323,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 94.6463,
          "release_spin_rate": 2483.6036,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": 0.2754,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": 1.9669,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.4739,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9597,
      "strikeout_factor": 1.0417,
      "walk_factor": 0.9721,
      "homer_factor": 0.9701,
      "woba_minus_xwoba": 0.023,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "691799",
        "espn_id": 4927630,
        "player_name": "Grant Taylor",
        "team": "CHW",
        "role": "pitcher",
        "espn_rank": 89,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 89,
          "gp_value": 27.0,
          "gp_rank": 111,
          "gs_value": 4.0,
          "gs_rank": 175,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.209,
          "era_rank": null,
          "w_value": 2.0,
          "w_rank": 180,
          "l_value": 0.0,
          "l_rank": 430,
          "sv_value": 2.0,
          "sv_rank": 56,
          "hld_value": 4.0,
          "hld_rank": 121,
          "ip_value": 36.2,
          "ip_rank": 180,
          "h_value": 29.0,
          "h_rank": 219,
          "er_value": 9.0,
          "er_rank": 360,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 9.0,
          "bb_rank": 332,
          "k_value": 52.0,
          "k_rank": 105,
          "k_per_9_value": 12.763636,
          "k_per_9_rank": 15,
          "whip_value": 1.0363,
          "whip_rank": null,
          "war_value": 1.01,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9819,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9819,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9874,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9865,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 3.0,
        "factor": 1.0188,
        "adjusted": 3
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 6.1,
    "ER": 1,
    "H": 6,
    "BB": 2,
    "SO": 8,
    "HR": 0,
    "ERA": 1.4210526315789473,
    "WHIP": 1.2631578947368423,
    "K9": 11.368421052631579,
    "HR9": 0.0,
    "games_pitched": 6,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 6,
    "error_prone": false
  },
  "games_count": 6,
  "latest_game_date": "2026-04-09T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "691799",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 16,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 16,
    "pitch_usage": 0.0,
    "release_speed": 94.64628205128204,
    "release_spin_rate": 2483.6036324786323,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 16,
      "pitch_usage": 0.0,
      "release_speed": 94.64628205128204,
      "release_spin_rate": 2483.6036324786323,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 94.6463,
    "release_spin_rate": 2483.6036,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": 0.2754,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": 1.9669,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.8653846153846154,
    "last_10": 0.1346153846153846
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 1.258,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.201,
    "prior_weight": 0.799
  },
  "role": "pitcher",
  "player_id": "691799",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 6,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.1,
        "ER": 0.0,
        "R": 0.0,
        "H": 4.0,
        "BB": 1.0,
        "SO": 7.0,
        "HR": 0.0,
        "BF": 21.0,
        "Pitches": 80.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.8,
        "BB": 0.2,
        "SO": 1.4,
        "HR": 0.0,
        "BF": 4.2,
        "Pitches": 16.0
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 0.9375,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.75,
        "BB_per_IP": 0.1875,
        "SO_per_IP": 1.3125,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 6,
      "totals": {
        "IP": 6.1,
        "ER": 1.0,
        "R": 1.0,
        "H": 6.0,
        "BB": 2.0,
        "SO": 8.0,
        "HR": 0.0,
        "BF": 27.0,
        "Pitches": 106.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.1667,
        "R": 0.1667,
        "H": 1.0,
        "BB": 0.3333,
        "SO": 1.3333,
        "HR": 0.0,
        "BF": 4.5,
        "Pitches": 17.6667
      },
      "rates": {
        "ERA": 1.4211,
        "WHIP": 1.2632,
        "ER_per_IP": 0.15789,
        "H_per_IP": 0.94737,
        "BB_per_IP": 0.31579,
        "SO_per_IP": 1.26316,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 6,
      "totals": {
        "IP": 6.1,
        "ER": 1.0,
        "R": 1.0,
        "H": 6.0,
        "BB": 2.0,
        "SO": 8.0,
        "HR": 0.0,
        "BF": 27.0,
        "Pitches": 106.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.1667,
        "R": 0.1667,
        "H": 1.0,
        "BB": 0.3333,
        "SO": 1.3333,
        "HR": 0.0,
        "BF": 4.5,
        "Pitches": 17.6667
      },
      "rates": {
        "ERA": 1.4211,
        "WHIP": 1.2632,
        "ER_per_IP": 0.15789,
        "H_per_IP": 0.94737,
        "BB_per_IP": 0.31579,
        "SO_per_IP": 1.26316,
        "HR_per_IP": 0.0
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.405,
    "predicted_H": 0.934,
    "predicted_BB": 0.331,
    "predicted_SO": 1.012,
    "predicted_HR": 0.117,
    "predicted_ERA": 3.6405,
    "predicted_WHIP": 1.2657
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.6876,
  "form_weight": 0.3124,
  "form_reliability": 0.201,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 1.258,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.201,
    "prior_weight": 0.799
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.405,
      "final": 0.1265,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.934,
      "final": 0.9794,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.331,
      "final": 0.1034,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 1.012,
      "final": 0.3162,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.117,
      "final": 0.0366,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.6405,
      "final": 3.6405,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2657,
      "final": 1.2657,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherSean Newcomb
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.0073
ESPN Rank77
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER2
Pre H4
Pre BB1
Pre SO1
Season ERA7.7143
Season WHIP1.7143
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "CHW",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 371.0,
    "runs_allowed": 387.0,
    "run_differential": -16.0,
    "run_differential_per_game": -0.2,
    "avg_runs_scored": 4.6375,
    "avg_runs_allowed": 4.8375,
    "offense_index": 1.0291,
    "defense_index": 0.9315,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.1,
      "avg_runs_allowed": 5.3,
      "run_differential": -12.0
    },
    "available": true,
    "quality_score": -0.035
  },
  "opponent": {
    "team": "NYY",
    "games": 82,
    "wins": 50,
    "losses": 32,
    "win_pct": 0.6098,
    "runs_scored": 410.0,
    "runs_allowed": 297.0,
    "run_differential": 113.0,
    "run_differential_per_game": 1.378,
    "avg_runs_scored": 5.0,
    "avg_runs_allowed": 3.622,
    "offense_index": 1.1096,
    "defense_index": 1.2441,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 8,
      "losses": 2,
      "win_pct": 0.8,
      "avg_runs_scored": 6.2,
      "avg_runs_allowed": 3.1,
      "run_differential": 31.0
    },
    "available": true,
    "quality_score": 0.3665
  },
  "edges": {
    "quality_edge": -0.4015,
    "offense_edge": 0.0291,
    "opponent_offense_edge": 0.1096,
    "defense_strength": -0.0685,
    "opponent_defense_weakness": -0.2441,
    "recent_win_pct_edge": -0.3
  },
  "player_factors": {
    "ip": 0.9775,
    "run_prevention": 1.0445,
    "strikeout": 0.9792
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "656794",
    "profile": {
      "available": true,
      "pitcher_id": "656794",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 0.0,
        "k_percent": 22.7,
        "bb_percent": 9.2,
        "woba": 0.311,
        "xwoba": 0.313,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.2,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.8,
        "swing_percent": 47.2
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.0309,
        "command_and_miss": 0.0179,
        "regression_edge": -0.0571,
        "xwoba_edge": 0.0571,
        "barrel_edge": 0.0222,
        "hard_hit_edge": 0.0,
        "whiff_edge": 0.0143,
        "bb_edge": 0.0,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "656794",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.0073,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9994,
      "strikeout_factor": 1.0008,
      "walk_factor": 1.0,
      "homer_factor": 0.9984,
      "woba_minus_xwoba": -0.002,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "656794",
        "espn_id": 33856,
        "player_name": "Sean Newcomb",
        "team": "CHW",
        "role": "pitcher",
        "espn_rank": 77,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 77,
          "gp_value": 28.0,
          "gp_rank": 95,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.7637,
          "era_rank": null,
          "w_value": 0.0,
          "w_rank": 404,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 1.0,
          "sv_rank": 86,
          "hld_value": 5.0,
          "hld_rank": 87,
          "ip_value": 42.1,
          "ip_rank": 155,
          "h_value": 33.0,
          "h_rank": 185,
          "er_value": 13.0,
          "er_rank": 243,
          "hr_value": 1.0,
          "hr_rank": 453,
          "bb_value": 11.0,
          "bb_rank": 272,
          "k_value": 40.0,
          "k_rank": 160,
          "k_per_9_value": 8.503937,
          "k_per_9_rank": 27,
          "whip_value": 1.0393,
          "whip_rank": null,
          "war_value": 1.17,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 1.0,
        "factor": 0.9997,
        "adjusted": 1
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9997,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9993,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0004,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "insufficient_data"
  },
  "pitching": {
    "IP": 2.1,
    "ER": 2,
    "H": 3,
    "BB": 1,
    "SO": 1,
    "HR": 0,
    "ERA": 7.7142857142857135,
    "WHIP": 1.7142857142857142,
    "K9": 3.8571428571428568,
    "HR9": 0.0,
    "games_pitched": 1,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": true
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 1,
    "error_prone": false
  },
  "games_count": 1,
  "latest_game_date": "2026-03-26T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "656794",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 1.0
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 0.463,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.0848,
    "prior_weight": 0.9152
  },
  "role": "pitcher",
  "player_id": "656794",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 1,
  "reference_playing_time": 0.1,
  "windows": {
    "last_5": {
      "games": 1,
      "totals": {
        "IP": 2.1,
        "ER": 2.0,
        "R": 2.0,
        "H": 3.0,
        "BB": 1.0,
        "SO": 1.0,
        "HR": 0.0,
        "BF": 10.0,
        "Pitches": 33.0
      },
      "per_game": {
        "IP": 2.1,
        "ER": 2.0,
        "R": 2.0,
        "H": 3.0,
        "BB": 1.0,
        "SO": 1.0,
        "HR": 0.0,
        "BF": 10.0,
        "Pitches": 33.0
      },
      "rates": {
        "ERA": 7.7143,
        "WHIP": 1.7143,
        "ER_per_IP": 0.85714,
        "H_per_IP": 1.28571,
        "BB_per_IP": 0.42857,
        "SO_per_IP": 0.42857,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 1,
      "totals": {
        "IP": 2.1,
        "ER": 2.0,
        "R": 2.0,
        "H": 3.0,
        "BB": 1.0,
        "SO": 1.0,
        "HR": 0.0,
        "BF": 10.0,
        "Pitches": 33.0
      },
      "per_game": {
        "IP": 2.1,
        "ER": 2.0,
        "R": 2.0,
        "H": 3.0,
        "BB": 1.0,
        "SO": 1.0,
        "HR": 0.0,
        "BF": 10.0,
        "Pitches": 33.0
      },
      "rates": {
        "ERA": 7.7143,
        "WHIP": 1.7143,
        "ER_per_IP": 0.85714,
        "H_per_IP": 1.28571,
        "BB_per_IP": 0.42857,
        "SO_per_IP": 0.42857,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 1,
      "totals": {
        "IP": 2.1,
        "ER": 2.0,
        "R": 2.0,
        "H": 3.0,
        "BB": 1.0,
        "SO": 1.0,
        "HR": 0.0,
        "BF": 10.0,
        "Pitches": 33.0
      },
      "per_game": {
        "IP": 2.1,
        "ER": 2.0,
        "R": 2.0,
        "H": 3.0,
        "BB": 1.0,
        "SO": 1.0,
        "HR": 0.0,
        "BF": 10.0,
        "Pitches": 33.0
      },
      "rates": {
        "ERA": 7.7143,
        "WHIP": 1.7143,
        "ER_per_IP": 0.85714,
        "H_per_IP": 1.28571,
        "BB_per_IP": 0.42857,
        "SO_per_IP": 0.42857,
        "HR_per_IP": 0.0
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 0.2,
    "predicted_ER": 0.267,
    "predicted_H": 0.503,
    "predicted_BB": 0.185,
    "predicted_SO": 0.45,
    "predicted_HR": 0.067,
    "predicted_ERA": 4.7801,
    "predicted_WHIP": 1.3692
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.7367,
  "form_weight": 0.2633,
  "form_reliability": 0.0848,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 0.463,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.0848,
    "prior_weight": 0.9152
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 0.1,
      "form": 0.2,
      "final": 0.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 2.0,
      "form": 0.267,
      "final": 1.5437,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 4.0,
      "form": 0.503,
      "final": 3.0791,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 0.185,
      "final": 0.7854,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 0.45,
      "final": 0.8552,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.067,
      "final": 0.0176,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.7801,
      "final": 4.7801,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.3692,
      "final": 1.3692,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherSeranthony Domínguez
RoleMiddle Reliever
Projection Source-
Savant Quality Score-0.1718
ESPN Rank236
Movement AvailableTrue
Primary Pitch-
Movement Score0.1634
Avg Velo92.6462
Avg Spin2184.3077
HB Inches0
IVB Inches0
Release Extension0
Pre IP1
Pre ER1
Pre H2
Pre BB0
Pre SO1
Season ERA13.5000
Season WHIP3
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "CHW",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 371.0,
    "runs_allowed": 387.0,
    "run_differential": -16.0,
    "run_differential_per_game": -0.2,
    "avg_runs_scored": 4.6375,
    "avg_runs_allowed": 4.8375,
    "offense_index": 1.0291,
    "defense_index": 0.9315,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.1,
      "avg_runs_allowed": 5.3,
      "run_differential": -12.0
    },
    "available": true,
    "quality_score": -0.035
  },
  "opponent": {
    "team": "NYY",
    "games": 82,
    "wins": 50,
    "losses": 32,
    "win_pct": 0.6098,
    "runs_scored": 410.0,
    "runs_allowed": 297.0,
    "run_differential": 113.0,
    "run_differential_per_game": 1.378,
    "avg_runs_scored": 5.0,
    "avg_runs_allowed": 3.622,
    "offense_index": 1.1096,
    "defense_index": 1.2441,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 8,
      "losses": 2,
      "win_pct": 0.8,
      "avg_runs_scored": 6.2,
      "avg_runs_allowed": 3.1,
      "run_differential": 31.0
    },
    "available": true,
    "quality_score": 0.3665
  },
  "edges": {
    "quality_edge": -0.4015,
    "offense_edge": 0.0291,
    "opponent_offense_edge": 0.1096,
    "defense_strength": -0.0685,
    "opponent_defense_weakness": -0.2441,
    "recent_win_pct_edge": -0.3
  },
  "player_factors": {
    "ip": 0.9775,
    "run_prevention": 1.0445,
    "strikeout": 0.9792
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "622554",
    "profile": {
      "available": true,
      "pitcher_id": "622554",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 4.0,
        "k_percent": 27.9,
        "bb_percent": 13.5,
        "woba": 0.295,
        "xwoba": 0.35,
        "sweet_spot_percent": 38.1,
        "barrel_batted_rate": 9.7,
        "hard_hit_percent": 38.1,
        "avg_best_speed": 80.6276,
        "avg_hyper_speed": 94.4578,
        "whiff_percent": 28.2,
        "swing_percent": 42.1
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.5438,
        "command_and_miss": 0.2571,
        "regression_edge": -1.5714,
        "xwoba_edge": -1.0,
        "barrel_edge": -0.5333,
        "hard_hit_edge": 0.0286,
        "whiff_edge": 0.3571,
        "bb_edge": -1.075,
        "pitch_design_score": 0.1634
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "622554",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 13,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 13,
          "pitch_usage": 0.0,
          "release_speed": 92.64615384615384,
          "release_spin_rate": 2184.3076923076924,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 13,
            "pitch_usage": 0.0,
            "release_speed": 92.64615384615384,
            "release_spin_rate": 2184.3076923076924,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 92.6462,
          "release_spin_rate": 2184.3077,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": 0.1634,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": 1.1669,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": -0.1718,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0146,
      "strikeout_factor": 1.0203,
      "walk_factor": 1.0387,
      "homer_factor": 1.0322,
      "woba_minus_xwoba": -0.055,
      "regression_flag": "negative_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "622554",
        "espn_id": 37793,
        "player_name": "Seranthony Dominguez",
        "team": "CHW",
        "role": "pitcher",
        "espn_rank": 236,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 236,
          "gp_value": 28.0,
          "gp_rank": 95,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 3.8076,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 3.0,
          "l_rank": 110,
          "sv_value": 12.0,
          "sv_rank": 11,
          "hld_value": 2.0,
          "hld_rank": 165,
          "ip_value": 26.0,
          "ip_rank": 312,
          "h_value": 16.0,
          "h_rank": 401,
          "er_value": 11.0,
          "er_rank": 294,
          "hr_value": 5.0,
          "hr_rank": 157,
          "bb_value": 15.0,
          "bb_rank": 191,
          "k_value": 31.0,
          "k_rank": 239,
          "k_per_9_value": 10.730769,
          "k_per_9_rank": 20,
          "whip_value": 1.1923,
          "whip_rank": null,
          "war_value": 0.32,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 2.0,
        "factor": 1.0066,
        "adjusted": 2
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 1.0066,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0174,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0145,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 0.0,
        "factor": 1.0091,
        "adjusted": 0
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "insufficient_data"
  },
  "pitching": {
    "IP": 1.1,
    "ER": 2,
    "H": 3,
    "BB": 1,
    "SO": 0,
    "HR": 1,
    "ERA": 13.5,
    "WHIP": 3.0,
    "K9": 0.0,
    "HR9": 6.75,
    "games_pitched": 2,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": true
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 2,
    "error_prone": false
  },
  "games_count": 2,
  "latest_game_date": "2026-03-29T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "622554",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 13,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 13,
    "pitch_usage": 0.0,
    "release_speed": 92.64615384615384,
    "release_spin_rate": 2184.3076923076924,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 13,
      "pitch_usage": 0.0,
      "release_speed": 92.64615384615384,
      "release_spin_rate": 2184.3076923076924,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 92.6462,
    "release_spin_rate": 2184.3077,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": 0.1634,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": 1.1669,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 1.0
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 0.265,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.0503,
    "prior_weight": 0.9497
  },
  "role": "pitcher",
  "player_id": "622554",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 2,
  "reference_playing_time": 0.1,
  "windows": {
    "last_5": {
      "games": 2,
      "totals": {
        "IP": 1.1,
        "ER": 2.0,
        "R": 2.0,
        "H": 3.0,
        "BB": 1.0,
        "SO": 0.0,
        "HR": 1.0,
        "BF": 8.0,
        "Pitches": 32.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 1.0,
        "R": 1.0,
        "H": 1.5,
        "BB": 0.5,
        "SO": 0.0,
        "HR": 0.5,
        "BF": 4.0,
        "Pitches": 16.0
      },
      "rates": {
        "ERA": 13.5,
        "WHIP": 3.0,
        "ER_per_IP": 1.5,
        "H_per_IP": 2.25,
        "BB_per_IP": 0.75,
        "SO_per_IP": 0.0,
        "HR_per_IP": 0.75
      }
    },
    "last_10": {
      "games": 2,
      "totals": {
        "IP": 1.1,
        "ER": 2.0,
        "R": 2.0,
        "H": 3.0,
        "BB": 1.0,
        "SO": 0.0,
        "HR": 1.0,
        "BF": 8.0,
        "Pitches": 32.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 1.0,
        "R": 1.0,
        "H": 1.5,
        "BB": 0.5,
        "SO": 0.0,
        "HR": 0.5,
        "BF": 4.0,
        "Pitches": 16.0
      },
      "rates": {
        "ERA": 13.5,
        "WHIP": 3.0,
        "ER_per_IP": 1.5,
        "H_per_IP": 2.25,
        "BB_per_IP": 0.75,
        "SO_per_IP": 0.0,
        "HR_per_IP": 0.75
      }
    },
    "season": {
      "games": 2,
      "totals": {
        "IP": 1.1,
        "ER": 2.0,
        "R": 2.0,
        "H": 3.0,
        "BB": 1.0,
        "SO": 0.0,
        "HR": 1.0,
        "BF": 8.0,
        "Pitches": 32.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 1.0,
        "R": 1.0,
        "H": 1.5,
        "BB": 0.5,
        "SO": 0.0,
        "HR": 0.5,
        "BF": 4.0,
        "Pitches": 16.0
      },
      "rates": {
        "ERA": 13.5,
        "WHIP": 3.0,
        "ER_per_IP": 1.5,
        "H_per_IP": 2.25,
        "BB_per_IP": 0.75,
        "SO_per_IP": 0.0,
        "HR_per_IP": 0.75
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 0.1,
    "predicted_ER": 0.193,
    "predicted_H": 0.363,
    "predicted_BB": 0.134,
    "predicted_SO": 0.312,
    "predicted_HR": 0.062,
    "predicted_ERA": 4.9605,
    "predicted_WHIP": 1.4208
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.7512,
  "form_weight": 0.2488,
  "form_reliability": 0.0503,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 0.265,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.0503,
    "prior_weight": 0.9497
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 0.1,
      "form": 0.1,
      "final": 0.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 1.0,
      "form": 0.193,
      "final": 0.7993,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 2.0,
      "form": 0.363,
      "final": 1.5928,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.134,
      "final": 0.0333,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 0.312,
      "final": 0.8289,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.062,
      "final": 0.0154,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.9605,
      "final": 4.9605,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.4208,
      "final": 1.4208,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Miguel Vargas (678246) · BATTER · 1B · Team CHW
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 256
All-history rows before 20260618: 256
System season_avg: 0.2440
Data season_avg (2026 season-to-date): 0.2333
Diff (system - data): 0.0107
System opponent_avg: 0.1430

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1710.0000.000Hitting_2B0.1481.000-0.148-1.000
predicted_3B0.0140.0000.000Hitting_3B0.0160.000-0.0160.000
predicted_AB3.9103.0004.000Hitting_AB3.6845.000-0.684-2.000
predicted_AVG0.2420.3330.250Hitting_AVG0.2330.2000.1000.133
predicted_BB0.6291.0001.000Hitting_BB0.6880.0000.3121.000
predicted_CS-0.0000.000BaseRunning_CS0.0080.000-0.0080.000
predicted_H0.9401.0001.000Hitting_H0.8591.0000.1410.000
predicted_HR0.1701.0000.000Hitting_HR0.2300.0000.7701.000
predicted_OBP0.3340.5000.400Hitting_OBP0.3630.2000.1370.300
predicted_R0.7291.0001.000Hitting_R0.7770.0000.2231.000
predicted_RBI0.5003.0000.000Hitting_RBI0.6020.0002.3983.000
predicted_SLG0.4401.3330.250Hitting_SLG0.4700.4000.8640.933
predicted_SO0.7290.0001.000Hitting_SO0.7541.000-0.754-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics10
Boosted Metrics5
Deboosted Metrics5
Better Metrics6
Worse Metrics4
Biggest Boostpredicted_RBI: 0.5000 -> 3.0000 (boost 2.5000, better)
Biggest Deboostpredicted_AB: 3.9100 -> 3.0000 (deboost -0.9100, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend30303-predicted_AB: 3.9100 -> 3.8468 (deboost -0.0632, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_SLG: 0.4394 -> 0.4133 (deboost -0.0261, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling74334predicted_BB: 0.5680 -> 1.0000 (boost 0.4320, better)predicted_RBI: 0.4574 -> 0.0000 (deboost -0.4574, worse)AB rounded to 4 (raw=3.91), rates preserved: AVG=0.231 HR/AB=0.040
5consistency_constraints11010predicted_R: 0.6298 -> 1.0000 (boost 0.3702, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_OBP: 0.3329 -> 0.4000 (boost 0.0671, better)predicted_SLG: 0.4133 -> 0.2500 (deboost -0.1633, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference42231predicted_RBI: 0.0000 -> 3.0000 (boost 3.0000, better)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.2500 -> 0.4133 (boost 0.1633, better)predicted_OBP: 0.4000 -> 0.3329 (deboost -0.0671, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "678246",
  "player_name": "Miguel Vargas",
  "position": "1B",
  "team": "CHW",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.171,
        "predicted_3B": 0.014,
        "predicted_AB": 3.91,
        "predicted_AVG": 0.242,
        "predicted_BB": 0.629,
        "predicted_H": 0.94,
        "predicted_HR": 0.17,
        "predicted_OBP": 0.334,
        "predicted_R": 0.729,
        "predicted_RBI": 0.5,
        "predicted_SLG": 0.44,
        "predicted_SO": 0.729
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1914,
        "predicted_3B": 0.0119,
        "predicted_AB": 3.8468,
        "predicted_AVG": 0.2456,
        "predicted_BB": 0.5743,
        "predicted_H": 0.9408,
        "predicted_HBP": 0.043,
        "predicted_HR": 0.1645,
        "predicted_OBP": 0.3377,
        "predicted_R": 0.6785,
        "predicted_RBI": 0.4928,
        "predicted_SLG": 0.4394,
        "predicted_SO": 0.6989
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.171,
          "after": 0.1914,
          "delta": 0.0204,
          "percent_delta": 0.1193,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.014,
          "after": 0.0119,
          "delta": -0.0021,
          "percent_delta": -0.15,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.91,
          "after": 3.8468,
          "delta": -0.0632,
          "percent_delta": -0.0162,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.242,
          "after": 0.2456,
          "delta": 0.0036,
          "percent_delta": 0.0149,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.629,
          "after": 0.5743,
          "delta": -0.0547,
          "percent_delta": -0.087,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.94,
          "after": 0.9408,
          "delta": 0.0008,
          "percent_delta": 0.0009,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.17,
          "after": 0.1645,
          "delta": -0.0055,
          "percent_delta": -0.0324,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.334,
          "after": 0.3377,
          "delta": 0.0037,
          "percent_delta": 0.0111,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.729,
          "after": 0.6785,
          "delta": -0.0505,
          "percent_delta": -0.0693,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5,
          "after": 0.4928,
          "delta": -0.0072,
          "percent_delta": -0.0144,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.44,
          "after": 0.4394,
          "delta": -0.0006,
          "percent_delta": -0.0014,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.729,
          "after": 0.6989,
          "delta": -0.0301,
          "percent_delta": -0.0413,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.91,
          "after": 3.8468,
          "delta": -0.0632,
          "percent_delta": -0.0162,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 70
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1914,
        "predicted_3B": 0.0119,
        "predicted_AB": 3.8468,
        "predicted_AVG": 0.2344,
        "predicted_BB": 0.568,
        "predicted_H": 0.9016,
        "predicted_HBP": 0.043,
        "predicted_HR": 0.1578,
        "predicted_OBP": 0.3329,
        "predicted_R": 0.6298,
        "predicted_RBI": 0.4574,
        "predicted_SLG": 0.4133,
        "predicted_SO": 0.7065
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1914,
          "after": 0.1914,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0119,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8468,
          "after": 3.8468,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2456,
          "after": 0.2344,
          "delta": -0.0112,
          "percent_delta": -0.0456,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.5743,
          "after": 0.568,
          "delta": -0.0063,
          "percent_delta": -0.011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9408,
          "after": 0.9016,
          "delta": -0.0392,
          "percent_delta": -0.0417,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.043,
          "after": 0.043,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1645,
          "after": 0.1578,
          "delta": -0.0067,
          "percent_delta": -0.0407,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3377,
          "after": 0.3329,
          "delta": -0.0048,
          "percent_delta": -0.0142,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.6785,
          "after": 0.6298,
          "delta": -0.0487,
          "percent_delta": -0.0718,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4928,
          "after": 0.4574,
          "delta": -0.0354,
          "percent_delta": -0.0718,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4394,
          "after": 0.4133,
          "delta": -0.0261,
          "percent_delta": -0.0594,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6989,
          "after": 0.7065,
          "delta": 0.0076,
          "percent_delta": 0.0109,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4394,
          "after": 0.4133,
          "delta": -0.0261,
          "percent_delta": -0.0594,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.91), rates preserved: AVG=0.231 HR/AB=0.040",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1914,
          "after": 0.0,
          "delta": -0.1914,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0,
          "delta": -0.0119,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8468,
          "after": 4.0,
          "delta": 0.1532,
          "percent_delta": 0.0398,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.568,
          "after": 1.0,
          "delta": 0.432,
          "percent_delta": 0.7606,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9016,
          "after": 1.0,
          "delta": 0.0984,
          "percent_delta": 0.1091,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.043,
          "after": 0.0,
          "delta": -0.043,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1578,
          "after": 0.0,
          "delta": -0.1578,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4574,
          "after": 0.0,
          "delta": -0.4574,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7065,
          "after": 1.0,
          "delta": 0.2935,
          "percent_delta": 0.4154,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 4,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.568,
          "after": 1.0,
          "delta": 0.432,
          "percent_delta": 0.7606,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4574,
          "after": 0.0,
          "delta": -0.4574,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.6298,
          "after": 1.0,
          "delta": 0.3702,
          "percent_delta": 0.5878,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.6298,
          "after": 1.0,
          "delta": 0.3702,
          "percent_delta": 0.5878,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.4,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2344,
          "after": 0.25,
          "delta": 0.0156,
          "percent_delta": 0.0666,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3329,
          "after": 0.4,
          "delta": 0.0671,
          "percent_delta": 0.2016,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4133,
          "after": 0.25,
          "delta": -0.1633,
          "percent_delta": -0.3951,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3329,
          "after": 0.4,
          "delta": 0.0671,
          "percent_delta": 0.2016,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4133,
          "after": 0.25,
          "delta": -0.1633,
          "percent_delta": -0.3951,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_R": 1.0,
        "predicted_RBI": 3.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 3.0,
          "delta": 3.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 2,
        "deboosted_metrics": 2,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 3.0,
          "delta": 3.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2344,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_FB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_OBP": 0.3329,
        "predicted_R": 1.0,
        "predicted_RBI": 3.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4133,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2344,
          "delta": -0.0156,
          "percent_delta": -0.0625,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3329,
          "delta": -0.0671,
          "percent_delta": -0.1678,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4133,
          "delta": 0.1633,
          "percent_delta": 0.6534,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4133,
          "delta": 0.1633,
          "percent_delta": 0.6534,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3329,
          "delta": -0.0671,
          "percent_delta": -0.1678,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.171,
        "after": 0.0,
        "delta": -0.171,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.014,
        "after": 0.0,
        "delta": -0.014,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.91,
        "after": 3.0,
        "delta": -0.91,
        "percent_delta": -0.2327,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.242,
        "after": 0.2344,
        "delta": -0.0076,
        "percent_delta": -0.0314,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.629,
        "after": 1.0,
        "delta": 0.371,
        "percent_delta": 0.5898,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.94,
        "after": 1.0,
        "delta": 0.06,
        "percent_delta": 0.0638,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.17,
        "after": 1.0,
        "delta": 0.83,
        "percent_delta": 4.8824,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.334,
        "after": 0.3329,
        "delta": -0.0011,
        "percent_delta": -0.0033,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.729,
        "after": 1.0,
        "delta": 0.271,
        "percent_delta": 0.3717,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.5,
        "after": 3.0,
        "delta": 2.5,
        "percent_delta": 5.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.44,
        "after": 0.4133,
        "delta": -0.0267,
        "percent_delta": -0.0607,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.729,
        "after": 0.0,
        "delta": -0.729,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 5,
      "deboosted_metrics": 5,
      "better_metrics": 6,
      "worse_metrics": 4,
      "biggest_boost": {
        "metric": "predicted_RBI",
        "before": 0.5,
        "after": 3.0,
        "delta": 2.5,
        "percent_delta": 5.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 3.91,
        "after": 3.0,
        "delta": -0.91,
        "percent_delta": -0.2327,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.171-
predicted_3B0.014-
predicted_AB3.910-
predicted_AVG0.242-
predicted_BB0.629-
predicted_H0.940-
predicted_HR0.170-
predicted_OBP0.334-
predicted_R0.729-
predicted_RBI0.500-
predicted_SLG0.440-
predicted_SO0.729-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1910.020
predicted_3B0.012-0.002
predicted_AB3.847-0.063
predicted_AVG0.2460.004
predicted_BB0.574-0.055
predicted_H0.9410.001
predicted_HBP0.043-
predicted_HR0.165-0.006
predicted_OBP0.3380.004
predicted_R0.678-0.050
predicted_RBI0.493-0.007
predicted_SLG0.439-0.001
predicted_SO0.699-0.030
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1910.000
predicted_3B0.0120.000
predicted_AB3.8470.000
predicted_AVG0.234-0.011
predicted_BB0.568-0.006
predicted_H0.902-0.039
predicted_HBP0.0430.000
predicted_HR0.158-0.007
predicted_OBP0.333-0.005
predicted_R0.630-0.049
predicted_RBI0.457-0.035
predicted_SLG0.413-0.026
predicted_SO0.7070.008
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.91), rates preserved: AVG=0.231 HR/AB=0.040

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.191
predicted_3B0.000-0.012
predicted_AB4.0000.153
predicted_AVG0.2500.016
predicted_BB1.0000.432
predicted_H1.0000.098
predicted_HR0.000-0.158
predicted_OBP0.4000.067
predicted_R1.0000.370
predicted_RBI0.000-0.457
predicted_SLG0.250-0.163
predicted_SO1.0000.293
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB1.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR1.0001.000
PA4.000-
R1.0000.000
RBI3.0003.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 70
Reference playing time: 3.910
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-19.0005.0002.0000.0000.0001.0002.0001.0002.0000.26320.30000.36840.26320.00000.05260.05260.1053
last_100.2010-39.00010.0002.0000.0001.0003.0005.0005.0006.0000.25640.34090.38460.25640.02560.07690.12820.1538
season0.6070-258.00063.00012.0001.00016.00044.00051.00044.00051.0000.24420.36250.48450.24420.06200.17050.17050.1977
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2190
predicted_3B0.0090
predicted_AB3.7610
predicted_AVG0.2504
predicted_BB0.5000
predicted_H0.9420
predicted_HBP0.0430
predicted_HR0.1570
predicted_OBP0.3428
predicted_R0.6100
predicted_RBI0.4830
predicted_SLG0.4385
predicted_SO0.6580
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.17100.21900.1914model_form_blend
predicted_3B0.01400.00900.0119model_form_blend
predicted_AB3.91003.76103.8468model_form_blend
predicted_AVG0.24200.25040.2456model_form_blend
predicted_BB0.62900.50000.5743model_form_blend
predicted_H0.94000.94200.9408model_form_blend
predicted_HBP-0.04300.0430form_only
predicted_HR0.17000.15700.1645model_form_blend
predicted_OBP0.33400.34280.3377model_form_blend
predicted_R0.72900.61000.6785model_form_blend
predicted_RBI0.50000.48300.4928model_form_blend
predicted_SLG0.44000.43850.4394model_form_blend
predicted_SO0.72900.65800.6989model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date256
Season rows before report date256
Report year2026
Profile rows used70
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B0
3B0
HR1
R1
RBI3
BB1
SO0
SF0
HBP0
season_avg0.244

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB5
Hitting_AVG0.2
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB2
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B-3B
gameID20260617_CHW@NYY
game_typefull
mlbID678246
playerID678246
playerNameMiguel Vargas
pos3B
startedTrue
startingPosition1B
teamCHW
teamID6
game_date2026-06-17
sl_k_percent16.4
sl_bb_percent14.5
sl_woba0.371
sl_xwoba0.401
sl_xba0.273
sl_xslg0.542
sl_sweet_spot_percent42.1
sl_barrel_batted_rate14.4
sl_hard_hit_percent45.2
sl_exit_velocity_avg90.1
sl_launch_angle_avg19.7
sl_whiff_percent20.2
sl_swing_percent44.5
Colson Montgomery (695657) · BATTER · 3B · Team CHW
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 244
All-history rows before 20260618: 244
System season_avg: 0.2250
Data season_avg (2026 season-to-date): 0.2352
Diff (system - data): -0.0102
System opponent_avg: 0.3330

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1880.0000.000Hitting_2B0.2010.000-0.2010.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.8204.0004.000Hitting_AB3.7464.0000.2540.000
predicted_AVG0.2280.0000.250Hitting_AVG0.2350.500-0.235-0.500
predicted_BB0.3770.0000.000Hitting_BB0.3770.000-0.3770.000
predicted_CS-0.0000.000BaseRunning_CS0.0160.000-0.0160.000
predicted_H0.8700.0001.000Hitting_H0.8812.000-0.881-2.000
predicted_HR0.2700.0000.000Hitting_HR0.2582.000-0.258-2.000
predicted_OBP0.3090.0000.250Hitting_OBP0.3300.500-0.330-0.500
predicted_R0.5070.0001.000Hitting_R0.5162.000-0.516-2.000
predicted_RBI0.6900.0001.000Hitting_RBI0.6644.000-0.664-4.000
predicted_SLG0.4970.0000.250Hitting_SLG0.4962.000-0.496-2.000
predicted_SO1.2611.0001.000Hitting_SO1.2790.000-0.2791.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics2
Deboosted Metrics9
Better Metrics3
Worse Metrics8
Biggest Boostpredicted_AB: 3.8200 -> 4.0000 (boost 0.1800, better)
Biggest Deboostpredicted_H: 0.8700 -> 0.0000 (deboost -0.8700, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend21111predicted_SLG: 0.4970 -> 0.5275 (boost 0.0305, better)predicted_AB: 3.8200 -> 3.7300 (deboost -0.0900, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot40404-predicted_RBI: 0.7221 -> 0.6703 (deboost -0.0518, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling83544predicted_RBI: 0.6703 -> 1.0000 (boost 0.3297, better)predicted_BB: 0.3579 -> 0.0000 (deboost -0.3579, worse)AB rounded to 4 (raw=3.82), rates preserved: AVG=0.212 HR/AB=0.076
5consistency_constraints11010predicted_R: 0.5071 -> 1.0000 (boost 0.4929, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2171 -> 0.2500 (boost 0.0329, better)predicted_SLG: 0.5023 -> 0.2500 (deboost -0.2523, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference30303-predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.2500 -> 0.5023 (boost 0.2523, better)predicted_AVG: 0.2500 -> 0.2171 (deboost -0.0329, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "695657",
  "player_name": "Colson Montgomery",
  "position": "3B",
  "team": "CHW",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.188,
        "predicted_3B": 0.0,
        "predicted_AB": 3.82,
        "predicted_AVG": 0.228,
        "predicted_BB": 0.377,
        "predicted_H": 0.87,
        "predicted_HR": 0.27,
        "predicted_OBP": 0.309,
        "predicted_R": 0.507,
        "predicted_RBI": 0.69,
        "predicted_SLG": 0.497,
        "predicted_SO": 1.261
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1901,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.73,
        "predicted_AVG": 0.2267,
        "predicted_BB": 0.3618,
        "predicted_H": 0.8451,
        "predicted_HBP": 0.091,
        "predicted_HR": 0.3034,
        "predicted_OBP": 0.3085,
        "predicted_R": 0.5463,
        "predicted_RBI": 0.7221,
        "predicted_SLG": 0.5275,
        "predicted_SO": 1.212
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.188,
          "after": 0.1901,
          "delta": 0.0021,
          "percent_delta": 0.0112,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.82,
          "after": 3.73,
          "delta": -0.09,
          "percent_delta": -0.0236,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.228,
          "after": 0.2267,
          "delta": -0.0013,
          "percent_delta": -0.0057,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.377,
          "after": 0.3618,
          "delta": -0.0152,
          "percent_delta": -0.0403,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.87,
          "after": 0.8451,
          "delta": -0.0249,
          "percent_delta": -0.0286,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.27,
          "after": 0.3034,
          "delta": 0.0334,
          "percent_delta": 0.1237,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.309,
          "after": 0.3085,
          "delta": -0.0005,
          "percent_delta": -0.0016,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.507,
          "after": 0.5463,
          "delta": 0.0393,
          "percent_delta": 0.0775,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.69,
          "after": 0.7221,
          "delta": 0.0321,
          "percent_delta": 0.0465,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.497,
          "after": 0.5275,
          "delta": 0.0305,
          "percent_delta": 0.0614,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.261,
          "after": 1.212,
          "delta": -0.049,
          "percent_delta": -0.0389,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.497,
          "after": 0.5275,
          "delta": 0.0305,
          "percent_delta": 0.0614,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.82,
          "after": 3.73,
          "delta": -0.09,
          "percent_delta": -0.0236,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 69
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1901,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.73,
        "predicted_AVG": 0.2171,
        "predicted_BB": 0.3579,
        "predicted_H": 0.8099,
        "predicted_HBP": 0.091,
        "predicted_HR": 0.291,
        "predicted_OBP": 0.2857,
        "predicted_R": 0.5071,
        "predicted_RBI": 0.6703,
        "predicted_SLG": 0.5023,
        "predicted_SO": 1.2252
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1901,
          "after": 0.1901,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.73,
          "after": 3.73,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2267,
          "after": 0.2171,
          "delta": -0.0096,
          "percent_delta": -0.0423,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3618,
          "after": 0.3579,
          "delta": -0.0039,
          "percent_delta": -0.0108,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8451,
          "after": 0.8099,
          "delta": -0.0352,
          "percent_delta": -0.0417,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.091,
          "after": 0.091,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.3034,
          "after": 0.291,
          "delta": -0.0124,
          "percent_delta": -0.0409,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3085,
          "after": 0.2857,
          "delta": -0.0228,
          "percent_delta": -0.0739,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5463,
          "after": 0.5071,
          "delta": -0.0392,
          "percent_delta": -0.0718,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.7221,
          "after": 0.6703,
          "delta": -0.0518,
          "percent_delta": -0.0717,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5275,
          "after": 0.5023,
          "delta": -0.0252,
          "percent_delta": -0.0478,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.212,
          "after": 1.2252,
          "delta": 0.0132,
          "percent_delta": 0.0109,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 0,
        "deboosted_metrics": 4,
        "better_metrics": 0,
        "worse_metrics": 4,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.7221,
          "after": 0.6703,
          "delta": -0.0518,
          "percent_delta": -0.0717,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.82), rates preserved: AVG=0.212 HR/AB=0.076",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1901,
          "after": 0.0,
          "delta": -0.1901,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.73,
          "after": 4.0,
          "delta": 0.27,
          "percent_delta": 0.0724,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3579,
          "after": 0.0,
          "delta": -0.3579,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8099,
          "after": 1.0,
          "delta": 0.1901,
          "percent_delta": 0.2347,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.091,
          "after": 0.0,
          "delta": -0.091,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.291,
          "after": 0.0,
          "delta": -0.291,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6703,
          "after": 1.0,
          "delta": 0.3297,
          "percent_delta": 0.4919,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.2252,
          "after": 1.0,
          "delta": -0.2252,
          "percent_delta": -0.1838,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 3,
        "deboosted_metrics": 5,
        "better_metrics": 4,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.6703,
          "after": 1.0,
          "delta": 0.3297,
          "percent_delta": 0.4919,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3579,
          "after": 0.0,
          "delta": -0.3579,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5071,
          "after": 1.0,
          "delta": 0.4929,
          "percent_delta": 0.972,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5071,
          "after": 1.0,
          "delta": 0.4929,
          "percent_delta": 0.972,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2171,
          "after": 0.25,
          "delta": 0.0329,
          "percent_delta": 0.1515,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2857,
          "after": 0.25,
          "delta": -0.0357,
          "percent_delta": -0.125,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5023,
          "after": 0.25,
          "delta": -0.2523,
          "percent_delta": -0.5023,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2171,
          "after": 0.25,
          "delta": 0.0329,
          "percent_delta": 0.1515,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.5023,
          "after": 0.25,
          "delta": -0.2523,
          "percent_delta": -0.5023,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2171,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2857,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.5023,
        "predicted_SO": 1.0,
        "predicted_TB": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2171,
          "delta": -0.0329,
          "percent_delta": -0.1315,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2857,
          "delta": 0.0357,
          "percent_delta": 0.1426,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.5023,
          "delta": 0.2523,
          "percent_delta": 1.0093,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.5023,
          "delta": 0.2523,
          "percent_delta": 1.0093,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2171,
          "delta": -0.0329,
          "percent_delta": -0.1315,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.188,
        "after": 0.0,
        "delta": -0.188,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.82,
        "after": 4.0,
        "delta": 0.18,
        "percent_delta": 0.0471,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.228,
        "after": 0.2171,
        "delta": -0.0109,
        "percent_delta": -0.0478,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.377,
        "after": 0.0,
        "delta": -0.377,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.87,
        "after": 0.0,
        "delta": -0.87,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.27,
        "after": 0.0,
        "delta": -0.27,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.309,
        "after": 0.2857,
        "delta": -0.0233,
        "percent_delta": -0.0754,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.507,
        "after": 0.0,
        "delta": -0.507,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.69,
        "after": 0.0,
        "delta": -0.69,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.497,
        "after": 0.5023,
        "delta": 0.0053,
        "percent_delta": 0.0107,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.261,
        "after": 1.0,
        "delta": -0.261,
        "percent_delta": -0.207,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 2,
      "deboosted_metrics": 9,
      "better_metrics": 3,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.82,
        "after": 4.0,
        "delta": 0.18,
        "percent_delta": 0.0471,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.87,
        "after": 0.0,
        "delta": -0.87,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.188-
predicted_3B0.000-
predicted_AB3.820-
predicted_AVG0.228-
predicted_BB0.377-
predicted_H0.870-
predicted_HR0.270-
predicted_OBP0.309-
predicted_R0.507-
predicted_RBI0.690-
predicted_SLG0.497-
predicted_SO1.261-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1900.002
predicted_3B0.0000.000
predicted_AB3.730-0.090
predicted_AVG0.227-0.001
predicted_BB0.362-0.015
predicted_H0.845-0.025
predicted_HBP0.091-
predicted_HR0.3030.033
predicted_OBP0.308-0.001
predicted_R0.5460.039
predicted_RBI0.7220.032
predicted_SLG0.5270.030
predicted_SO1.212-0.049
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1900.000
predicted_3B0.0000.000
predicted_AB3.7300.000
predicted_AVG0.217-0.010
predicted_BB0.358-0.004
predicted_H0.810-0.035
predicted_HBP0.0910.000
predicted_HR0.291-0.012
predicted_OBP0.286-0.023
predicted_R0.507-0.039
predicted_RBI0.670-0.052
predicted_SLG0.502-0.025
predicted_SO1.2250.013
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.82), rates preserved: AVG=0.212 HR/AB=0.076

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.190
predicted_3B0.000-0.000
predicted_AB4.0000.270
predicted_AVG0.2500.033
predicted_BB0.000-0.358
predicted_H1.0000.190
predicted_HR0.000-0.291
predicted_OBP0.250-0.036
predicted_R1.0000.493
predicted_RBI1.0000.330
predicted_SLG0.250-0.252
predicted_SO1.000-0.225
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 69
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0004.0001.0000.0003.0006.0004.0001.0004.0000.23530.27780.82350.23530.17650.35290.05880.2353
last_100.2010-35.0007.0002.0000.0004.0008.0007.0004.00013.0000.20000.30000.60000.20000.11430.22860.11430.3714
season0.6069-253.00057.00013.0000.00019.00044.00035.00026.00087.0000.22530.31940.50200.22530.07510.17390.10280.3439
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1930
predicted_3B0.0010
predicted_AB3.6070
predicted_AVG0.2249
predicted_BB0.3410
predicted_H0.8110
predicted_HBP0.0910
predicted_HR0.3490
predicted_OBP0.3078
predicted_R0.6000
predicted_RBI0.7660
predicted_SLG0.5693
predicted_SO1.1450
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.18800.19300.1901model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB3.82003.60703.7300model_form_blend
predicted_AVG0.22800.22490.2267model_form_blend
predicted_BB0.37700.34100.3618model_form_blend
predicted_H0.87000.81100.8451model_form_blend
predicted_HBP-0.09100.0910form_only
predicted_HR0.27000.34900.3034model_form_blend
predicted_OBP0.30900.30780.3085model_form_blend
predicted_R0.50700.60000.5463model_form_blend
predicted_RBI0.69000.76600.7221model_form_blend
predicted_SLG0.49700.56930.5275model_form_blend
predicted_SO1.26101.14501.2120model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date244
Season rows before report date244
Report year2026
Profile rows used69
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.225

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E1
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.5
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR2
Hitting_IBB0
Hitting_R2
Hitting_RBI4
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB8
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B-SS
gameID20260617_CHW@NYY
game_typefull
mlbID695657
playerID695657
playerNameColson Montgomery
posSS
startedTrue
startingPosition3B
teamCHW
teamID6
game_date2026-06-17
sl_k_percent30.2
sl_bb_percent9.0
sl_woba0.353
sl_xwoba0.328
sl_xba0.217
sl_xslg0.447
sl_sweet_spot_percent34.9
sl_barrel_batted_rate13.9
sl_hard_hit_percent46.7
sl_exit_velocity_avg90.2
sl_launch_angle_avg20.4
sl_whiff_percent37.7
sl_swing_percent52.4
Randal Grichuk (545341) · BATTER · DH · Team CHW
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 50
All-history rows before 20260618: 50
System season_avg: 0.2690
Data season_avg (2026 season-to-date): 0.3333
Diff (system - data): -0.0643
System opponent_avg: 0.2340
System season_avg diverges from 2026 season-to-date by -0.0643. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1610.0000.000Hitting_2B0.1000.000-0.1000.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.5003.0003.000Hitting_AB2.5204.0000.480-1.000
predicted_AVG0.2990.3330.333Hitting_AVG0.3330.2500.0000.083
predicted_BB0.1080.0000.000Hitting_BB0.0800.000-0.0800.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.6701.0001.000Hitting_H0.8401.0000.1600.000
predicted_HR0.1200.0000.000Hitting_HR0.2000.000-0.2000.000
predicted_OBP0.3320.2500.333Hitting_OBP0.3730.250-0.1230.000
predicted_R0.4301.0000.000Hitting_R0.3401.0000.6600.000
predicted_RBI0.4301.0000.000Hitting_RBI0.9000.0000.1001.000
predicted_SLG0.4650.3330.333Hitting_SLG0.6110.250-0.2780.083
predicted_SO0.5910.0001.000Hitting_SO0.5200.000-0.5200.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectdeboosted
Changed Metrics10
Boosted Metrics4
Deboosted Metrics6
Better Metrics5
Worse Metrics5
Biggest Boostpredicted_R: 0.4300 -> 1.0000 (boost 0.5700, better)
Biggest Deboostpredicted_SO: 0.5910 -> 0.0000 (deboost -0.5910, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend11010predicted_SLG: 0.4650 -> 0.4751 (boost 0.0101, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3354 -> 0.3034 (deboost -0.0320, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73425predicted_AB: 2.5455 -> 3.0000 (boost 0.4545, better)predicted_RBI: 0.4143 -> 0.0000 (deboost -0.4143, worse)AB rounded to 3 (raw=2.55), rates preserved: AVG=0.264 HR/AB=0.047
5bvp_blend00000--Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.200)
6consistency_constraints10101-predicted_R: 0.3871 -> 0.0000 (deboost -0.3871, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context32121predicted_AVG: 0.2639 -> 0.3330 (boost 0.0691, better)predicted_SLG: 0.4645 -> 0.3330 (deboost -0.1315, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference43130predicted_R: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
9current_json_final31212predicted_SLG: 0.3330 -> 0.4645 (boost 0.1315, better)predicted_AVG: 0.3330 -> 0.2639 (deboost -0.0691, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "545341",
  "player_name": "Randal Grichuk",
  "position": "DH",
  "team": "CHW",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.161,
        "predicted_3B": 0.0,
        "predicted_AB": 2.5,
        "predicted_AVG": 0.299,
        "predicted_BB": 0.108,
        "predicted_H": 0.67,
        "predicted_HR": 0.12,
        "predicted_OBP": 0.332,
        "predicted_R": 0.43,
        "predicted_RBI": 0.43,
        "predicted_SLG": 0.465,
        "predicted_SO": 0.591
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1476,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.5455,
        "predicted_AVG": 0.2943,
        "predicted_BB": 0.1462,
        "predicted_H": 0.7009,
        "predicted_HBP": 0.019,
        "predicted_HR": 0.1257,
        "predicted_OBP": 0.3354,
        "predicted_R": 0.417,
        "predicted_RBI": 0.4464,
        "predicted_SLG": 0.4751,
        "predicted_SO": 0.5673
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.161,
          "after": 0.1476,
          "delta": -0.0134,
          "percent_delta": -0.0832,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.5,
          "after": 2.5455,
          "delta": 0.0455,
          "percent_delta": 0.0182,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.299,
          "after": 0.2943,
          "delta": -0.0047,
          "percent_delta": -0.0157,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.108,
          "after": 0.1462,
          "delta": 0.0382,
          "percent_delta": 0.3537,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.67,
          "after": 0.7009,
          "delta": 0.0309,
          "percent_delta": 0.0461,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.12,
          "after": 0.1257,
          "delta": 0.0057,
          "percent_delta": 0.0475,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.332,
          "after": 0.3354,
          "delta": 0.0034,
          "percent_delta": 0.0102,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.43,
          "after": 0.417,
          "delta": -0.013,
          "percent_delta": -0.0302,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.43,
          "after": 0.4464,
          "delta": 0.0164,
          "percent_delta": 0.0381,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.465,
          "after": 0.4751,
          "delta": 0.0101,
          "percent_delta": 0.0217,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.591,
          "after": 0.5673,
          "delta": -0.0237,
          "percent_delta": -0.0401,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.465,
          "after": 0.4751,
          "delta": 0.0101,
          "percent_delta": 0.0217,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 41
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1476,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.5455,
        "predicted_AVG": 0.2639,
        "predicted_BB": 0.1446,
        "predicted_H": 0.6717,
        "predicted_HBP": 0.019,
        "predicted_HR": 0.1205,
        "predicted_OBP": 0.3034,
        "predicted_R": 0.3871,
        "predicted_RBI": 0.4143,
        "predicted_SLG": 0.4645,
        "predicted_SO": 0.5735
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1476,
          "after": 0.1476,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.5455,
          "after": 2.5455,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2943,
          "after": 0.2639,
          "delta": -0.0304,
          "percent_delta": -0.1033,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1462,
          "after": 0.1446,
          "delta": -0.0016,
          "percent_delta": -0.0109,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7009,
          "after": 0.6717,
          "delta": -0.0292,
          "percent_delta": -0.0417,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.019,
          "after": 0.019,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1257,
          "after": 0.1205,
          "delta": -0.0052,
          "percent_delta": -0.0414,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3354,
          "after": 0.3034,
          "delta": -0.032,
          "percent_delta": -0.0954,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.417,
          "after": 0.3871,
          "delta": -0.0299,
          "percent_delta": -0.0717,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4464,
          "after": 0.4143,
          "delta": -0.0321,
          "percent_delta": -0.0719,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4751,
          "after": 0.4645,
          "delta": -0.0106,
          "percent_delta": -0.0223,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5673,
          "after": 0.5735,
          "delta": 0.0062,
          "percent_delta": 0.0109,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3354,
          "after": 0.3034,
          "delta": -0.032,
          "percent_delta": -0.0954,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.55), rates preserved: AVG=0.264 HR/AB=0.047",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1476,
          "after": 0.0,
          "delta": -0.1476,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.5455,
          "after": 3.0,
          "delta": 0.4545,
          "percent_delta": 0.1786,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1446,
          "after": 0.0,
          "delta": -0.1446,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6717,
          "after": 1.0,
          "delta": 0.3283,
          "percent_delta": 0.4888,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.019,
          "after": 0.0,
          "delta": -0.019,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1205,
          "after": 0.0,
          "delta": -0.1205,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4143,
          "after": 0.0,
          "delta": -0.4143,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5735,
          "after": 1.0,
          "delta": 0.4265,
          "percent_delta": 0.7437,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.5455,
          "after": 3.0,
          "delta": 0.4545,
          "percent_delta": 0.1786,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4143,
          "after": 0.0,
          "delta": -0.4143,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.200)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9429,
        "bvp": 0.0571
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3871,
          "after": 0.0,
          "delta": -0.3871,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3871,
          "after": 0.0,
          "delta": -0.3871,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2639,
          "after": 0.333,
          "delta": 0.0691,
          "percent_delta": 0.2618,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3034,
          "after": 0.333,
          "delta": 0.0296,
          "percent_delta": 0.0976,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4645,
          "after": 0.333,
          "delta": -0.1315,
          "percent_delta": -0.2831,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2639,
          "after": 0.333,
          "delta": 0.0691,
          "percent_delta": 0.2618,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4645,
          "after": 0.333,
          "delta": -0.1315,
          "percent_delta": -0.2831,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "higher",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2639,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3034,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 1.0,
        "predicted_SLG": 0.4645,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2639,
          "delta": -0.0691,
          "percent_delta": -0.2076,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3034,
          "delta": -0.0296,
          "percent_delta": -0.0888,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4645,
          "delta": 0.1315,
          "percent_delta": 0.395,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4645,
          "delta": 0.1315,
          "percent_delta": 0.395,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2639,
          "delta": -0.0691,
          "percent_delta": -0.2076,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.161,
        "after": 0.0,
        "delta": -0.161,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.5,
        "after": 3.0,
        "delta": 0.5,
        "percent_delta": 0.2,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.299,
        "after": 0.2639,
        "delta": -0.0351,
        "percent_delta": -0.1174,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.108,
        "after": 0.0,
        "delta": -0.108,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.67,
        "after": 1.0,
        "delta": 0.33,
        "percent_delta": 0.4925,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.12,
        "after": 0.0,
        "delta": -0.12,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.332,
        "after": 0.3034,
        "delta": -0.0286,
        "percent_delta": -0.0861,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.43,
        "after": 1.0,
        "delta": 0.57,
        "percent_delta": 1.3256,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.43,
        "after": 1.0,
        "delta": 0.57,
        "percent_delta": 1.3256,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.465,
        "after": 0.4645,
        "delta": -0.0005,
        "percent_delta": -0.0011,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.591,
        "after": 0.0,
        "delta": -0.591,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 4,
      "deboosted_metrics": 6,
      "better_metrics": 5,
      "worse_metrics": 5,
      "biggest_boost": {
        "metric": "predicted_R",
        "before": 0.43,
        "after": 1.0,
        "delta": 0.57,
        "percent_delta": 1.3256,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.591,
        "after": 0.0,
        "delta": -0.591,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "deboosted"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.161-
predicted_3B0.000-
predicted_AB2.500-
predicted_AVG0.299-
predicted_BB0.108-
predicted_H0.670-
predicted_HR0.120-
predicted_OBP0.332-
predicted_R0.430-
predicted_RBI0.430-
predicted_SLG0.465-
predicted_SO0.591-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.148-0.013
predicted_3B0.0010.001
predicted_AB2.5460.046
predicted_AVG0.294-0.005
predicted_BB0.1460.038
predicted_H0.7010.031
predicted_HBP0.019-
predicted_HR0.1260.006
predicted_OBP0.3350.003
predicted_R0.417-0.013
predicted_RBI0.4460.016
predicted_SLG0.4750.010
predicted_SO0.567-0.024
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1480.000
predicted_3B0.0010.000
predicted_AB2.5460.000
predicted_AVG0.264-0.030
predicted_BB0.145-0.002
predicted_H0.672-0.029
predicted_HBP0.0190.000
predicted_HR0.120-0.005
predicted_OBP0.303-0.032
predicted_R0.387-0.030
predicted_RBI0.414-0.032
predicted_SLG0.465-0.011
predicted_SO0.5740.006
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.55), rates preserved: AVG=0.264 HR/AB=0.047

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.200)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.148
predicted_3B0.000-0.001
predicted_AB3.0000.454
predicted_AVG0.3330.069
predicted_BB0.000-0.145
predicted_H1.0000.328
predicted_HR0.000-0.120
predicted_OBP0.3330.030
predicted_R0.000-0.387
predicted_RBI0.000-0.414
predicted_SLG0.333-0.132
predicted_SO1.0000.426
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI1.0001.000
SB0.0000.000
SF1.0001.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 41
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-11.0004.0000.0000.0000.0002.0001.0002.0001.0000.36360.46150.36360.36360.00000.18180.18180.0909
last_100.2010-22.0007.0001.0000.0002.0004.0004.0002.0004.0000.31820.37500.63640.31820.09090.18180.09090.1818
season0.6041-93.00025.0006.0000.0006.00019.00016.0004.00022.0000.26880.30300.52690.26880.06450.20430.04300.2366
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1260
predicted_3B0.0020
predicted_AB2.6190
predicted_AVG0.2867
predicted_BB0.2080
predicted_H0.7510
predicted_HBP0.0190
predicted_HR0.1350
predicted_OBP0.3408
predicted_R0.3960
predicted_RBI0.4730
predicted_SLG0.4914
predicted_SO0.5290
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.16100.12600.1476model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB2.50002.61902.5455model_form_blend
predicted_AVG0.29900.28670.2943model_form_blend
predicted_BB0.10800.20800.1462model_form_blend
predicted_H0.67000.75100.7009model_form_blend
predicted_HBP-0.01900.0190form_only
predicted_HR0.12000.13500.1257model_form_blend
predicted_OBP0.33200.34080.3354model_form_blend
predicted_R0.43000.39600.4170model_form_blend
predicted_RBI0.43000.47300.4464model_form_blend
predicted_SLG0.46500.49140.4751model_form_blend
predicted_SO0.59100.52900.5673model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date50
Season rows before report date50
Report year2026
Profile rows used41
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B0
3B0
HR0
R1
RBI1
BB0
SO0
SF1
HBP0
season_avg0.269

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260617_CHW@NYY
game_typefull
mlbID545341
playerID545341
playerNameRandal Grichuk
posRF
startedTrue
startingPositionDH
teamCHW
teamID6
game_date2026-06-17
sl_k_percent22.2
sl_bb_percent4.0
sl_woba0.354
sl_xwoba0.393
sl_xba0.318
sl_xslg0.57
sl_sweet_spot_percent48.6
sl_barrel_batted_rate13.9
sl_hard_hit_percent47.2
sl_exit_velocity_avg91.0
sl_launch_angle_avg14.5
sl_whiff_percent23.7
sl_swing_percent49.0
Chase Meidroth (805367) · BATTER · 2B · Team CHW
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 246
All-history rows before 20260618: 246
System season_avg: 0.2780
Data season_avg (2026 season-to-date): 0.2662
Diff (system - data): 0.0118
System opponent_avg: 0.2220

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2031.0000.000Hitting_2B0.1751.0000.8250.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.2104.0004.000Hitting_AB3.8335.0000.167-1.000
predicted_AVG0.2490.2500.250Hitting_AVG0.2660.400-0.016-0.150
predicted_BB0.3770.0000.000Hitting_BB0.4350.000-0.4350.000
predicted_CS-0.0000.000BaseRunning_CS0.0040.000-0.0040.000
predicted_H1.0501.0001.000Hitting_H1.0202.000-0.020-1.000
predicted_HR0.1200.0000.000Hitting_HR0.1020.000-0.1020.000
predicted_OBP0.3410.2500.250Hitting_OBP0.3390.400-0.089-0.150
predicted_R0.6231.0001.000Hitting_R0.6591.0000.3410.000
predicted_RBI0.5000.0000.000Hitting_RBI0.3780.000-0.3780.000
predicted_SB-0.0000.000BaseRunning_SB0.0450.000-0.0450.000
predicted_SLG0.4040.5000.250Hitting_SLG0.3910.6000.109-0.100
predicted_SO0.9860.0001.000Hitting_SO0.9672.000-0.967-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics4
Worse Metrics7
Biggest Boostpredicted_2B: 0.2030 -> 1.0000 (boost 0.7970, better)
Biggest Deboostpredicted_SO: 0.9860 -> 0.0000 (deboost -0.9860, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend43131predicted_AVG: 0.2490 -> 0.2666 (boost 0.0176, better)predicted_AB: 4.2100 -> 4.0341 (deboost -0.1759, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3465 -> 0.3119 (deboost -0.0346, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling50505-predicted_RBI: 0.4578 -> 0.0000 (deboost -0.4578, worse)AB rounded to 4 (raw=4.21), rates preserved: AVG=0.244 HR/AB=0.027
5consistency_constraints11010predicted_R: 0.5638 -> 1.0000 (boost 0.4362, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context20202-predicted_SLG: 0.3872 -> 0.2500 (deboost -0.1372, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21120predicted_2B: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final22020predicted_SLG: 0.2500 -> 0.3872 (boost 0.1372, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "805367",
  "player_name": "Chase Meidroth",
  "position": "2B",
  "team": "CHW",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.203,
        "predicted_3B": 0.0,
        "predicted_AB": 4.21,
        "predicted_AVG": 0.249,
        "predicted_BB": 0.377,
        "predicted_H": 1.05,
        "predicted_HR": 0.12,
        "predicted_OBP": 0.341,
        "predicted_R": 0.623,
        "predicted_RBI": 0.5,
        "predicted_SLG": 0.404,
        "predicted_SO": 0.986
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1945,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.0341,
        "predicted_AVG": 0.2666,
        "predicted_BB": 0.3389,
        "predicted_H": 1.0724,
        "predicted_HBP": 0.092,
        "predicted_HR": 0.1179,
        "predicted_OBP": 0.3465,
        "predicted_R": 0.6074,
        "predicted_RBI": 0.4932,
        "predicted_SLG": 0.4152,
        "predicted_SO": 1.0156
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.203,
          "after": 0.1945,
          "delta": -0.0085,
          "percent_delta": -0.0419,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.21,
          "after": 4.0341,
          "delta": -0.1759,
          "percent_delta": -0.0418,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.249,
          "after": 0.2666,
          "delta": 0.0176,
          "percent_delta": 0.0707,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.377,
          "after": 0.3389,
          "delta": -0.0381,
          "percent_delta": -0.1011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.05,
          "after": 1.0724,
          "delta": 0.0224,
          "percent_delta": 0.0213,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.12,
          "after": 0.1179,
          "delta": -0.0021,
          "percent_delta": -0.0175,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.341,
          "after": 0.3465,
          "delta": 0.0055,
          "percent_delta": 0.0161,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.623,
          "after": 0.6074,
          "delta": -0.0156,
          "percent_delta": -0.025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5,
          "after": 0.4932,
          "delta": -0.0068,
          "percent_delta": -0.0136,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.404,
          "after": 0.4152,
          "delta": 0.0112,
          "percent_delta": 0.0277,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.986,
          "after": 1.0156,
          "delta": 0.0296,
          "percent_delta": 0.03,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.249,
          "after": 0.2666,
          "delta": 0.0176,
          "percent_delta": 0.0707,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.21,
          "after": 4.0341,
          "delta": -0.1759,
          "percent_delta": -0.0418,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 69
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1945,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.0341,
        "predicted_AVG": 0.2547,
        "predicted_BB": 0.3352,
        "predicted_H": 1.0277,
        "predicted_HBP": 0.092,
        "predicted_HR": 0.1131,
        "predicted_OBP": 0.3119,
        "predicted_R": 0.5638,
        "predicted_RBI": 0.4578,
        "predicted_SLG": 0.3872,
        "predicted_SO": 1.0267
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1945,
          "after": 0.1945,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0341,
          "after": 4.0341,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2666,
          "after": 0.2547,
          "delta": -0.0119,
          "percent_delta": -0.0446,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3389,
          "after": 0.3352,
          "delta": -0.0037,
          "percent_delta": -0.0109,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0724,
          "after": 1.0277,
          "delta": -0.0447,
          "percent_delta": -0.0417,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.092,
          "after": 0.092,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1179,
          "after": 0.1131,
          "delta": -0.0048,
          "percent_delta": -0.0407,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3465,
          "after": 0.3119,
          "delta": -0.0346,
          "percent_delta": -0.0999,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.6074,
          "after": 0.5638,
          "delta": -0.0436,
          "percent_delta": -0.0718,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4932,
          "after": 0.4578,
          "delta": -0.0354,
          "percent_delta": -0.0718,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4152,
          "after": 0.3872,
          "delta": -0.028,
          "percent_delta": -0.0674,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0156,
          "after": 1.0267,
          "delta": 0.0111,
          "percent_delta": 0.0109,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3465,
          "after": 0.3119,
          "delta": -0.0346,
          "percent_delta": -0.0999,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.21), rates preserved: AVG=0.244 HR/AB=0.027",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1945,
          "after": 0.0,
          "delta": -0.1945,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0341,
          "after": 4.0,
          "delta": -0.0341,
          "percent_delta": -0.0085,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3352,
          "after": 0.0,
          "delta": -0.3352,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0277,
          "after": 1.0,
          "delta": -0.0277,
          "percent_delta": -0.027,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.092,
          "after": 0.0,
          "delta": -0.092,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1131,
          "after": 0.0,
          "delta": -0.1131,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4578,
          "after": 0.0,
          "delta": -0.4578,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0267,
          "after": 1.0,
          "delta": -0.0267,
          "percent_delta": -0.026,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 0,
        "deboosted_metrics": 5,
        "better_metrics": 0,
        "worse_metrics": 5,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4578,
          "after": 0.0,
          "delta": -0.4578,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5638,
          "after": 1.0,
          "delta": 0.4362,
          "percent_delta": 0.7737,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5638,
          "after": 1.0,
          "delta": 0.4362,
          "percent_delta": 0.7737,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2547,
          "after": 0.25,
          "delta": -0.0047,
          "percent_delta": -0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3119,
          "after": 0.25,
          "delta": -0.0619,
          "percent_delta": -0.1985,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3872,
          "after": 0.25,
          "delta": -0.1372,
          "percent_delta": -0.3543,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3872,
          "after": 0.25,
          "delta": -0.1372,
          "percent_delta": -0.3543,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2547,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3119,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3872,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2547,
          "delta": 0.0047,
          "percent_delta": 0.019,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3119,
          "delta": 0.0619,
          "percent_delta": 0.2477,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3872,
          "delta": 0.1372,
          "percent_delta": 0.549,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3872,
          "delta": 0.1372,
          "percent_delta": 0.549,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.203,
        "after": 1.0,
        "delta": 0.797,
        "percent_delta": 3.9261,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.21,
        "after": 4.0,
        "delta": -0.21,
        "percent_delta": -0.0499,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.249,
        "after": 0.2547,
        "delta": 0.0057,
        "percent_delta": 0.0229,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.377,
        "after": 0.0,
        "delta": -0.377,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.05,
        "after": 1.0,
        "delta": -0.05,
        "percent_delta": -0.0476,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.12,
        "after": 0.0,
        "delta": -0.12,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.341,
        "after": 0.3119,
        "delta": -0.0291,
        "percent_delta": -0.0853,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.623,
        "after": 1.0,
        "delta": 0.377,
        "percent_delta": 0.6051,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.5,
        "after": 0.0,
        "delta": -0.5,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.404,
        "after": 0.3872,
        "delta": -0.0168,
        "percent_delta": -0.0416,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.986,
        "after": 0.0,
        "delta": -0.986,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 4,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_2B",
        "before": 0.203,
        "after": 1.0,
        "delta": 0.797,
        "percent_delta": 3.9261,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.986,
        "after": 0.0,
        "delta": -0.986,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.203-
predicted_3B0.000-
predicted_AB4.210-
predicted_AVG0.249-
predicted_BB0.377-
predicted_H1.050-
predicted_HR0.120-
predicted_OBP0.341-
predicted_R0.623-
predicted_RBI0.500-
predicted_SLG0.404-
predicted_SO0.986-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.195-0.009
predicted_3B0.0000.000
predicted_AB4.034-0.176
predicted_AVG0.2670.018
predicted_BB0.339-0.038
predicted_H1.0720.022
predicted_HBP0.092-
predicted_HR0.118-0.002
predicted_OBP0.3460.005
predicted_R0.607-0.016
predicted_RBI0.493-0.007
predicted_SLG0.4150.011
predicted_SO1.0160.030
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1950.000
predicted_3B0.0000.000
predicted_AB4.0340.000
predicted_AVG0.255-0.012
predicted_BB0.335-0.004
predicted_H1.028-0.045
predicted_HBP0.0920.000
predicted_HR0.113-0.005
predicted_OBP0.312-0.035
predicted_R0.564-0.044
predicted_RBI0.458-0.035
predicted_SLG0.387-0.028
predicted_SO1.0270.011
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.21), rates preserved: AVG=0.244 HR/AB=0.027

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.195
predicted_3B0.000-0.000
predicted_AB4.000-0.034
predicted_AVG0.250-0.005
predicted_BB0.000-0.335
predicted_H1.000-0.028
predicted_HR0.000-0.113
predicted_OBP0.250-0.062
predicted_R1.0000.436
predicted_RBI0.000-0.458
predicted_SLG0.250-0.137
predicted_SO1.000-0.027
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 69
Reference playing time: 4.210
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0006.0001.0000.0001.0004.0003.0001.0007.0000.33330.40000.55560.33330.05560.22220.05560.3889
last_100.2010-39.00012.0001.0000.0001.0005.0005.0001.00010.0000.30770.35710.41030.30770.02560.12820.02560.2564
season0.6069-263.00073.00014.0000.0006.00025.00043.00026.00068.0000.27760.34470.39920.27760.02280.09510.09890.2586
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1830
predicted_3B0.0010
predicted_AB3.7940
predicted_AVG0.2906
predicted_BB0.2870
predicted_H1.1030
predicted_HBP0.0920
predicted_HR0.1150
predicted_OBP0.3541
predicted_R0.5860
predicted_RBI0.4840
predicted_SLG0.4306
predicted_SO1.0560
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.20300.18300.1945model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.21003.79404.0341model_form_blend
predicted_AVG0.24900.29060.2666model_form_blend
predicted_BB0.37700.28700.3389model_form_blend
predicted_H1.05001.10301.0724model_form_blend
predicted_HBP-0.09200.0920form_only
predicted_HR0.12000.11500.1179model_form_blend
predicted_OBP0.34100.35410.3465model_form_blend
predicted_R0.62300.58600.6074model_form_blend
predicted_RBI0.50000.48400.4932model_form_blend
predicted_SLG0.40400.43060.4152model_form_blend
predicted_SO0.98601.05601.0156model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date246
Season rows before report date246
Report year2026
Profile rows used69
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B1
3B0
HR0
R1
RBI0
BB0
SO0
SF0
HBP0
season_avg0.278

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB5
Hitting_AVG0.4
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB3
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_CHW@NYY
game_typefull
mlbID805367
playerID805367
playerNameChase Meidroth
pos2B
startedTrue
startingPosition2B
teamCHW
teamID6
game_date2026-06-17
sl_k_percent22.7
sl_bb_percent9.0
sl_woba0.333
sl_xwoba0.293
sl_xba0.234
sl_xslg0.336
sl_sweet_spot_percent32.8
sl_barrel_batted_rate5.1
sl_hard_hit_percent36.0
sl_exit_velocity_avg87.8
sl_launch_angle_avg7.0
sl_whiff_percent19.6
sl_swing_percent41.1
Junior Perez (678577) · BATTER · LF · Team CHW
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 0
All-history rows before 20260618: 0
System season_avg: 0.2505
Data season_avg (2026 season-to-date): -
Diff (system - data): -
System opponent_avg: 0.2505

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1650.0000.000Hitting_2B----
predicted_3B0.0180.0000.000Hitting_3B----
predicted_AB3.3664.0003.000Hitting_AB----
predicted_AVG0.2510.5000.333Hitting_AVG----
predicted_BB0.3610.0000.000Hitting_BB----
predicted_CS-0.0000.000BaseRunning_CS----
predicted_H0.8452.0001.000Hitting_H----
predicted_HR0.1100.0000.000Hitting_HR----
predicted_OBP0.3230.5000.333Hitting_OBP----
predicted_R0.4611.0000.000Hitting_R----
predicted_RBI0.4320.0000.000Hitting_RBI----
predicted_SLG0.4090.5000.333Hitting_SLG----
predicted_SO0.8791.0001.000Hitting_SO----

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics4
Deboosted Metrics7
Better Metrics3
Worse Metrics8
Biggest Boostpredicted_H: 0.8450 -> 2.0000 (boost 1.1550, better)
Biggest Deboostpredicted_RBI: 0.4320 -> 0.0000 (deboost -0.4320, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend11010predicted_AB: 3.3660 -> 3.4446 (boost 0.0786, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.4091 -> 0.3944 (deboost -0.0147, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_H: 0.8284 -> 1.0000 (boost 0.1716, better)predicted_AB: 3.4446 -> 3.0000 (deboost -0.4446, worse)AB rounded to 3 (raw=3.44), rates preserved: AVG=0.240 HR/AB=0.032
5consistency_constraints10101-predicted_R: 0.4337 -> 0.0000 (deboost -0.4337, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2405 -> 0.3330 (boost 0.0925, better)predicted_SLG: 0.3944 -> 0.3330 (deboost -0.0614, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference33030predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.3944 (boost 0.0614, better)predicted_AVG: 0.3330 -> 0.2405 (deboost -0.0925, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "678577",
  "player_name": "Junior Perez",
  "position": "LF",
  "team": "CHW",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.165,
        "predicted_3B": 0.018,
        "predicted_AB": 3.366,
        "predicted_AVG": 0.251,
        "predicted_BB": 0.361,
        "predicted_H": 0.845,
        "predicted_HR": 0.11,
        "predicted_OBP": 0.323,
        "predicted_R": 0.461,
        "predicted_RBI": 0.432,
        "predicted_SLG": 0.409,
        "predicted_SO": 0.879
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1688,
        "predicted_3B": 0.0175,
        "predicted_AB": 3.4446,
        "predicted_AVG": 0.2509,
        "predicted_BB": 0.3509,
        "predicted_H": 0.8644,
        "predicted_HBP": 0.035,
        "predicted_HR": 0.1135,
        "predicted_OBP": 0.3215,
        "predicted_R": 0.4673,
        "predicted_RBI": 0.444,
        "predicted_SLG": 0.4091,
        "predicted_SO": 0.8747
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.165,
          "after": 0.1688,
          "delta": 0.0038,
          "percent_delta": 0.023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.018,
          "after": 0.0175,
          "delta": -0.0005,
          "percent_delta": -0.0278,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.366,
          "after": 3.4446,
          "delta": 0.0786,
          "percent_delta": 0.0234,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.251,
          "after": 0.2509,
          "delta": -0.0001,
          "percent_delta": -0.0004,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.361,
          "after": 0.3509,
          "delta": -0.0101,
          "percent_delta": -0.028,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.845,
          "after": 0.8644,
          "delta": 0.0194,
          "percent_delta": 0.023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.11,
          "after": 0.1135,
          "delta": 0.0035,
          "percent_delta": 0.0318,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.323,
          "after": 0.3215,
          "delta": -0.0015,
          "percent_delta": -0.0046,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.461,
          "after": 0.4673,
          "delta": 0.0063,
          "percent_delta": 0.0137,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.432,
          "after": 0.444,
          "delta": 0.012,
          "percent_delta": 0.0278,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.409,
          "after": 0.4091,
          "delta": 0.0001,
          "percent_delta": 0.0002,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.879,
          "after": 0.8747,
          "delta": -0.0043,
          "percent_delta": -0.0049,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.366,
          "after": 3.4446,
          "delta": 0.0786,
          "percent_delta": 0.0234,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 0,
        "last_10": 0,
        "season": 0
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1688,
        "predicted_3B": 0.0175,
        "predicted_AB": 3.4446,
        "predicted_AVG": 0.2405,
        "predicted_BB": 0.3471,
        "predicted_H": 0.8284,
        "predicted_HBP": 0.035,
        "predicted_HR": 0.1088,
        "predicted_OBP": 0.31,
        "predicted_R": 0.4337,
        "predicted_RBI": 0.4121,
        "predicted_SLG": 0.3944,
        "predicted_SO": 0.8842
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1688,
          "after": 0.1688,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0175,
          "after": 0.0175,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4446,
          "after": 3.4446,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2509,
          "after": 0.2405,
          "delta": -0.0104,
          "percent_delta": -0.0415,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3509,
          "after": 0.3471,
          "delta": -0.0038,
          "percent_delta": -0.0108,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8644,
          "after": 0.8284,
          "delta": -0.036,
          "percent_delta": -0.0416,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.035,
          "after": 0.035,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1135,
          "after": 0.1088,
          "delta": -0.0047,
          "percent_delta": -0.0414,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3215,
          "after": 0.31,
          "delta": -0.0115,
          "percent_delta": -0.0358,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4673,
          "after": 0.4337,
          "delta": -0.0336,
          "percent_delta": -0.0719,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.444,
          "after": 0.4121,
          "delta": -0.0319,
          "percent_delta": -0.0718,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4091,
          "after": 0.3944,
          "delta": -0.0147,
          "percent_delta": -0.0359,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8747,
          "after": 0.8842,
          "delta": 0.0095,
          "percent_delta": 0.0109,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4091,
          "after": 0.3944,
          "delta": -0.0147,
          "percent_delta": -0.0359,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.44), rates preserved: AVG=0.240 HR/AB=0.032",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1688,
          "after": 0.0,
          "delta": -0.1688,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0175,
          "after": 0.0,
          "delta": -0.0175,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4446,
          "after": 3.0,
          "delta": -0.4446,
          "percent_delta": -0.1291,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3471,
          "after": 0.0,
          "delta": -0.3471,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8284,
          "after": 1.0,
          "delta": 0.1716,
          "percent_delta": 0.2071,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.035,
          "after": 0.0,
          "delta": -0.035,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1088,
          "after": 0.0,
          "delta": -0.1088,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4121,
          "after": 0.0,
          "delta": -0.4121,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8842,
          "after": 1.0,
          "delta": 0.1158,
          "percent_delta": 0.131,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.8284,
          "after": 1.0,
          "delta": 0.1716,
          "percent_delta": 0.2071,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.4446,
          "after": 3.0,
          "delta": -0.4446,
          "percent_delta": -0.1291,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4337,
          "after": 0.0,
          "delta": -0.4337,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4337,
          "after": 0.0,
          "delta": -0.4337,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2405,
          "after": 0.333,
          "delta": 0.0925,
          "percent_delta": 0.3846,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.31,
          "after": 0.333,
          "delta": 0.023,
          "percent_delta": 0.0742,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3944,
          "after": 0.333,
          "delta": -0.0614,
          "percent_delta": -0.1557,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2405,
          "after": 0.333,
          "delta": 0.0925,
          "percent_delta": 0.3846,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3944,
          "after": 0.333,
          "delta": -0.0614,
          "percent_delta": -0.1557,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2405,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_LF": 0.0,
        "predicted_OBP": 0.31,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3944,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2405,
          "delta": -0.0925,
          "percent_delta": -0.2778,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.31,
          "delta": -0.023,
          "percent_delta": -0.0691,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3944,
          "delta": 0.0614,
          "percent_delta": 0.1845,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3944,
          "delta": 0.0614,
          "percent_delta": 0.1845,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2405,
          "delta": -0.0925,
          "percent_delta": -0.2778,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.165,
        "after": 0.0,
        "delta": -0.165,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.018,
        "after": 0.0,
        "delta": -0.018,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.366,
        "after": 4.0,
        "delta": 0.634,
        "percent_delta": 0.1884,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.251,
        "after": 0.2405,
        "delta": -0.0105,
        "percent_delta": -0.0418,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.361,
        "after": 0.0,
        "delta": -0.361,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.845,
        "after": 2.0,
        "delta": 1.155,
        "percent_delta": 1.3669,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.11,
        "after": 0.0,
        "delta": -0.11,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.323,
        "after": 0.31,
        "delta": -0.013,
        "percent_delta": -0.0402,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.461,
        "after": 1.0,
        "delta": 0.539,
        "percent_delta": 1.1692,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.432,
        "after": 0.0,
        "delta": -0.432,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.409,
        "after": 0.3944,
        "delta": -0.0146,
        "percent_delta": -0.0357,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.879,
        "after": 1.0,
        "delta": 0.121,
        "percent_delta": 0.1377,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 4,
      "deboosted_metrics": 7,
      "better_metrics": 3,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 0.845,
        "after": 2.0,
        "delta": 1.155,
        "percent_delta": 1.3669,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.432,
        "after": 0.0,
        "delta": -0.432,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.165-
predicted_3B0.018-
predicted_AB3.366-
predicted_AVG0.251-
predicted_BB0.361-
predicted_H0.845-
predicted_HR0.110-
predicted_OBP0.323-
predicted_R0.461-
predicted_RBI0.432-
predicted_SLG0.409-
predicted_SO0.879-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1690.004
predicted_3B0.018-0.000
predicted_AB3.4450.079
predicted_AVG0.251-0.000
predicted_BB0.351-0.010
predicted_H0.8640.019
predicted_HBP0.035-
predicted_HR0.1140.004
predicted_OBP0.322-0.002
predicted_R0.4670.006
predicted_RBI0.4440.012
predicted_SLG0.4090.000
predicted_SO0.875-0.004
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1690.000
predicted_3B0.0180.000
predicted_AB3.4450.000
predicted_AVG0.240-0.010
predicted_BB0.347-0.004
predicted_H0.828-0.036
predicted_HBP0.0350.000
predicted_HR0.109-0.005
predicted_OBP0.310-0.012
predicted_R0.434-0.034
predicted_RBI0.412-0.032
predicted_SLG0.394-0.015
predicted_SO0.8840.009
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.44), rates preserved: AVG=0.240 HR/AB=0.032

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.169
predicted_3B0.000-0.018
predicted_AB3.000-0.445
predicted_AVG0.3330.093
predicted_BB0.000-0.347
predicted_H1.0000.172
predicted_HR0.000-0.109
predicted_OBP0.3330.023
predicted_R0.000-0.434
predicted_RBI0.000-0.412
predicted_SLG0.333-0.061
predicted_SO1.0000.116
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 0
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.200-0.0000.0000.0000.0000.0000.0000.0000.0000.000--------
last_100.200-0.0000.0000.0000.0000.0000.0000.0000.0000.000--------
season0.600-0.0000.0000.0000.0000.0000.0000.0000.0000.000--------
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1890
predicted_3B0.0150
predicted_AB3.8650
predicted_AVG0.2505
predicted_BB0.2970
predicted_H0.9680
predicted_HBP0.0350
predicted_HR0.1320
predicted_OBP0.3134
predicted_R0.5010
predicted_RBI0.5080
predicted_SLG0.4098
predicted_SO0.8520
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.16500.18900.1688model_form_blend
predicted_3B0.01800.01500.0175model_form_blend
predicted_AB3.36603.86503.4446model_form_blend
predicted_AVG0.25100.25050.2509model_form_blend
predicted_BB0.36100.29700.3509model_form_blend
predicted_H0.84500.96800.8644model_form_blend
predicted_HBP-0.03500.0350form_only
predicted_HR0.11000.13200.1135model_form_blend
predicted_OBP0.32300.31340.3215model_form_blend
predicted_R0.46100.50100.4673model_form_blend
predicted_RBI0.43200.50800.4440model_form_blend
predicted_SLG0.40900.40980.4091model_form_blend
predicted_SO0.87900.85200.8747model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date0
Season rows before report date0
Report year2026
Profile rows used0
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H2
2B0
3B0
HR0
R1
RBI0
BB0
SO1
SF0
HBP0
season_avg0.0

Latest Real Data Snapshot (before report date)

No historical data found for this player before report date.

Edgar Quero (700337) · BATTER · C · Team CHW
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 143
All-history rows before 20260618: 143
System season_avg: 0.1970
Data season_avg (2026 season-to-date): 0.1947
Diff (system - data): 0.0023
System opponent_avg: 0.1970

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0220.0000.000Hitting_2B0.0280.000-0.0280.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.0444.0003.000Hitting_AB3.1964.0000.8040.000
predicted_AVG0.2520.0000.333Hitting_AVG0.1950.750-0.195-0.750
predicted_BB0.2440.0000.000Hitting_BB0.3360.000-0.3360.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.7000.0001.000Hitting_H0.6223.000-0.622-3.000
predicted_HR0.0800.0000.000Hitting_HR0.0420.000-0.0420.000
predicted_OBP0.2840.0000.333Hitting_OBP0.2690.750-0.269-0.750
predicted_R0.2440.0000.000Hitting_R0.3010.000-0.3010.000
predicted_RBI0.3200.0000.000Hitting_RBI0.4340.000-0.4340.000
predicted_SLG0.3270.0000.333Hitting_SLG0.2430.750-0.243-0.750
predicted_SO0.8670.0001.000Hitting_SO0.9300.000-0.9300.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics1
Deboosted Metrics9
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_AB: 3.0440 -> 4.0000 (boost 0.9560, better)
Biggest Deboostpredicted_SO: 0.8670 -> 0.0000 (deboost -0.8670, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend20202-predicted_SLG: 0.3270 -> 0.3173 (deboost -0.0097, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_AVG: 0.2447 -> 0.2219 (deboost -0.0228, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62415predicted_H: 0.6816 -> 1.0000 (boost 0.3184, better)predicted_RBI: 0.2799 -> 0.0000 (deboost -0.2799, worse)AB rounded to 3 (raw=3.07), rates preserved: AVG=0.222 HR/AB=0.022
5consistency_constraints10101-predicted_R: 0.2202 -> 0.0000 (deboost -0.2202, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.2219 -> 0.3330 (boost 0.1111, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference31221predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.2219 (deboost -0.1111, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "700337",
  "player_name": "Edgar Quero",
  "position": "C",
  "team": "CHW",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.022,
        "predicted_3B": 0.0,
        "predicted_AB": 3.044,
        "predicted_AVG": 0.252,
        "predicted_BB": 0.244,
        "predicted_H": 0.7,
        "predicted_HR": 0.08,
        "predicted_OBP": 0.284,
        "predicted_R": 0.244,
        "predicted_RBI": 0.32,
        "predicted_SLG": 0.327,
        "predicted_SO": 0.867
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0276,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.0718,
        "predicted_AVG": 0.2447,
        "predicted_BB": 0.2118,
        "predicted_H": 0.7113,
        "predicted_HBP": 0.016,
        "predicted_HR": 0.0711,
        "predicted_OBP": 0.2793,
        "predicted_R": 0.2372,
        "predicted_RBI": 0.3015,
        "predicted_SLG": 0.3173,
        "predicted_SO": 0.8457
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.022,
          "after": 0.0276,
          "delta": 0.0056,
          "percent_delta": 0.2545,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.044,
          "after": 3.0718,
          "delta": 0.0278,
          "percent_delta": 0.0091,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.252,
          "after": 0.2447,
          "delta": -0.0073,
          "percent_delta": -0.029,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.244,
          "after": 0.2118,
          "delta": -0.0322,
          "percent_delta": -0.132,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7,
          "after": 0.7113,
          "delta": 0.0113,
          "percent_delta": 0.0161,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.08,
          "after": 0.0711,
          "delta": -0.0089,
          "percent_delta": -0.1113,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.284,
          "after": 0.2793,
          "delta": -0.0047,
          "percent_delta": -0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.244,
          "after": 0.2372,
          "delta": -0.0068,
          "percent_delta": -0.0279,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.32,
          "after": 0.3015,
          "delta": -0.0185,
          "percent_delta": -0.0578,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.327,
          "after": 0.3173,
          "delta": -0.0097,
          "percent_delta": -0.0297,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.867,
          "after": 0.8457,
          "delta": -0.0213,
          "percent_delta": -0.0246,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.327,
          "after": 0.3173,
          "delta": -0.0097,
          "percent_delta": -0.0297,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 45
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0276,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.0718,
        "predicted_AVG": 0.2219,
        "predicted_BB": 0.2095,
        "predicted_H": 0.6816,
        "predicted_HBP": 0.016,
        "predicted_HR": 0.0682,
        "predicted_OBP": 0.2716,
        "predicted_R": 0.2202,
        "predicted_RBI": 0.2799,
        "predicted_SLG": 0.298,
        "predicted_SO": 0.8549
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0276,
          "after": 0.0276,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0718,
          "after": 3.0718,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2447,
          "after": 0.2219,
          "delta": -0.0228,
          "percent_delta": -0.0932,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2118,
          "after": 0.2095,
          "delta": -0.0023,
          "percent_delta": -0.0109,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7113,
          "after": 0.6816,
          "delta": -0.0297,
          "percent_delta": -0.0418,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.016,
          "after": 0.016,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0711,
          "after": 0.0682,
          "delta": -0.0029,
          "percent_delta": -0.0408,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2793,
          "after": 0.2716,
          "delta": -0.0077,
          "percent_delta": -0.0276,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.2372,
          "after": 0.2202,
          "delta": -0.017,
          "percent_delta": -0.0717,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3015,
          "after": 0.2799,
          "delta": -0.0216,
          "percent_delta": -0.0716,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3173,
          "after": 0.298,
          "delta": -0.0193,
          "percent_delta": -0.0608,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8457,
          "after": 0.8549,
          "delta": 0.0092,
          "percent_delta": 0.0109,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2447,
          "after": 0.2219,
          "delta": -0.0228,
          "percent_delta": -0.0932,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.07), rates preserved: AVG=0.222 HR/AB=0.022",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0276,
          "after": 0.0,
          "delta": -0.0276,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0718,
          "after": 3.0,
          "delta": -0.0718,
          "percent_delta": -0.0234,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2095,
          "after": 0.0,
          "delta": -0.2095,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6816,
          "after": 1.0,
          "delta": 0.3184,
          "percent_delta": 0.4671,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.016,
          "after": 0.0,
          "delta": -0.016,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0682,
          "after": 0.0,
          "delta": -0.0682,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2799,
          "after": 0.0,
          "delta": -0.2799,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8549,
          "after": 1.0,
          "delta": 0.1451,
          "percent_delta": 0.1697,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.6816,
          "after": 1.0,
          "delta": 0.3184,
          "percent_delta": 0.4671,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.2799,
          "after": 0.0,
          "delta": -0.2799,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.2202,
          "after": 0.0,
          "delta": -0.2202,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.2202,
          "after": 0.0,
          "delta": -0.2202,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2219,
          "after": 0.333,
          "delta": 0.1111,
          "percent_delta": 0.5007,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2716,
          "after": 0.333,
          "delta": 0.0614,
          "percent_delta": 0.2261,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.298,
          "after": 0.333,
          "delta": 0.035,
          "percent_delta": 0.1174,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2219,
          "after": 0.333,
          "delta": 0.1111,
          "percent_delta": 0.5007,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2219,
        "predicted_BB": 0.0,
        "predicted_C": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2716,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.298,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2219,
          "delta": -0.1111,
          "percent_delta": -0.3336,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2716,
          "delta": -0.0614,
          "percent_delta": -0.1844,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.298,
          "delta": -0.035,
          "percent_delta": -0.1051,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2219,
          "delta": -0.1111,
          "percent_delta": -0.3336,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.022,
        "after": 0.0,
        "delta": -0.022,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.044,
        "after": 4.0,
        "delta": 0.956,
        "percent_delta": 0.3141,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.252,
        "after": 0.2219,
        "delta": -0.0301,
        "percent_delta": -0.1194,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.244,
        "after": 0.0,
        "delta": -0.244,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.7,
        "after": 0.0,
        "delta": -0.7,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.08,
        "after": 0.0,
        "delta": -0.08,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.284,
        "after": 0.2716,
        "delta": -0.0124,
        "percent_delta": -0.0437,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.244,
        "after": 0.0,
        "delta": -0.244,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.32,
        "after": 0.0,
        "delta": -0.32,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.327,
        "after": 0.298,
        "delta": -0.029,
        "percent_delta": -0.0887,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.867,
        "after": 0.0,
        "delta": -0.867,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 1,
      "deboosted_metrics": 9,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.044,
        "after": 4.0,
        "delta": 0.956,
        "percent_delta": 0.3141,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.867,
        "after": 0.0,
        "delta": -0.867,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.022-
predicted_3B0.000-
predicted_AB3.044-
predicted_AVG0.252-
predicted_BB0.244-
predicted_H0.700-
predicted_HR0.080-
predicted_OBP0.284-
predicted_R0.244-
predicted_RBI0.320-
predicted_SLG0.327-
predicted_SO0.867-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.0280.006
predicted_3B0.0010.001
predicted_AB3.0720.028
predicted_AVG0.245-0.007
predicted_BB0.212-0.032
predicted_H0.7110.011
predicted_HBP0.016-
predicted_HR0.071-0.009
predicted_OBP0.279-0.005
predicted_R0.237-0.007
predicted_RBI0.301-0.019
predicted_SLG0.317-0.010
predicted_SO0.846-0.021
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0280.000
predicted_3B0.0010.000
predicted_AB3.0720.000
predicted_AVG0.222-0.023
predicted_BB0.209-0.002
predicted_H0.682-0.030
predicted_HBP0.0160.000
predicted_HR0.068-0.003
predicted_OBP0.272-0.008
predicted_R0.220-0.017
predicted_RBI0.280-0.022
predicted_SLG0.298-0.019
predicted_SO0.8550.009
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.07), rates preserved: AVG=0.222 HR/AB=0.022

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.028
predicted_3B0.000-0.001
predicted_AB3.000-0.072
predicted_AVG0.3330.111
predicted_BB0.000-0.209
predicted_H1.0000.318
predicted_HR0.000-0.068
predicted_OBP0.3330.061
predicted_R0.000-0.220
predicted_RBI0.000-0.280
predicted_SLG0.3330.035
predicted_SO1.0000.145
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 45
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-14.0004.0000.0000.0000.0000.0000.0000.0004.0000.28570.28570.28570.28570.00000.00000.00000.2857
last_100.2010-29.0008.0000.0000.0001.0002.0002.0000.0006.0000.27590.27590.37930.27590.03450.06900.00000.2069
season0.6045-137.00027.0001.0000.0002.00015.00011.00011.00039.0000.19710.25320.24820.19710.01460.10950.08030.2847
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0360
predicted_3B0.0020
predicted_AB3.1130
predicted_AVG0.2338
predicted_BB0.1640
predicted_H0.7280
predicted_HBP0.0160
predicted_HR0.0580
predicted_OBP0.2723
predicted_R0.2270
predicted_RBI0.2740
predicted_SLG0.3028
predicted_SO0.8140
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.02200.03600.0276model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB3.04403.11303.0718model_form_blend
predicted_AVG0.25200.23380.2447model_form_blend
predicted_BB0.24400.16400.2118model_form_blend
predicted_H0.70000.72800.7113model_form_blend
predicted_HBP-0.01600.0160form_only
predicted_HR0.08000.05800.0711model_form_blend
predicted_OBP0.28400.27230.2793model_form_blend
predicted_R0.24400.22700.2372model_form_blend
predicted_RBI0.32000.27400.3015model_form_blend
predicted_SLG0.32700.30280.3173model_form_blend
predicted_SO0.86700.81400.8457model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date143
Season rows before report date143
Report year2026
Profile rows used45
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.197

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.75
Hitting_BB0
Hitting_GIDP0
Hitting_H3
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB3
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedC
gameID20260617_CHW@NYY
game_typefull
mlbID700337
playerID700337
playerNameEdgar Quero
posC
startedTrue
startingPositionC
teamCHW
teamID6
game_date2026-06-17
sl_k_percent24.5
sl_bb_percent7.5
sl_woba0.238
sl_xwoba0.253
sl_xba0.2
sl_xslg0.275
sl_sweet_spot_percent26.7
sl_barrel_batted_rate1.9
sl_hard_hit_percent34.3
sl_exit_velocity_avg91.0
sl_launch_angle_avg9.2
sl_whiff_percent24.8
sl_swing_percent48.9
Braden Montgomery (695731) · BATTER · RF · Team CHW
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 8
All-history rows before 20260618: 8
System season_avg: 0.2220
Data season_avg (2026 season-to-date): 0.2222
Diff (system - data): -0.0002
System opponent_avg: 0.1250

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2861.0000.000Hitting_2B0.2500.0000.7501.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.8574.0004.000Hitting_AB3.3754.0000.6250.000
predicted_AVG0.2240.2500.250Hitting_AVG0.2220.2500.0280.000
predicted_BB0.1430.0000.000Hitting_BB0.1250.000-0.1250.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.7701.0001.000Hitting_H0.7501.0000.2500.000
predicted_HR0.1000.0000.000Hitting_HR0.1250.000-0.1250.000
predicted_OBP0.2690.2500.250Hitting_OBP0.2500.2500.0000.000
predicted_R0.5710.0001.000Hitting_R0.5000.000-0.5000.000
predicted_RBI0.4000.0000.000Hitting_RBI0.5000.000-0.5000.000
predicted_SLG0.3360.5000.250Hitting_SLG0.4070.2500.0930.250
predicted_SO1.1431.0001.000Hitting_SO1.0002.0000.000-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics4
Worse Metrics7
Biggest Boostpredicted_2B: 0.2860 -> 1.0000 (boost 0.7140, better)
Biggest Deboostpredicted_R: 0.5710 -> 0.0000 (deboost -0.5710, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend30303-predicted_SLG: 0.3360 -> 0.3272 (deboost -0.0088, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.2636 -> 0.2254 (deboost -0.0382, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72534predicted_H: 0.7319 -> 1.0000 (boost 0.2681, better)predicted_RBI: 0.3730 -> 0.0000 (deboost -0.3730, worse)AB rounded to 4 (raw=3.86), rates preserved: AVG=0.190 HR/AB=0.024
5consistency_constraints11010predicted_R: 0.5031 -> 1.0000 (boost 0.4969, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.1910 -> 0.2500 (boost 0.0590, better)predicted_SLG: 0.3270 -> 0.2500 (deboost -0.0770, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21111predicted_2B: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_R: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.2500 -> 0.3270 (boost 0.0770, better)predicted_AVG: 0.2500 -> 0.1910 (deboost -0.0590, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "695731",
  "player_name": "Braden Montgomery",
  "position": "RF",
  "team": "CHW",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.286,
        "predicted_3B": 0.0,
        "predicted_AB": 3.857,
        "predicted_AVG": 0.224,
        "predicted_BB": 0.143,
        "predicted_H": 0.77,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.269,
        "predicted_R": 0.571,
        "predicted_RBI": 0.4,
        "predicted_SLG": 0.336,
        "predicted_SO": 1.143
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2406,
        "predicted_3B": 0.0024,
        "predicted_AB": 3.8319,
        "predicted_AVG": 0.2164,
        "predicted_BB": 0.1723,
        "predicted_H": 0.7637,
        "predicted_HBP": 0.018,
        "predicted_HR": 0.0958,
        "predicted_OBP": 0.2636,
        "predicted_R": 0.542,
        "predicted_RBI": 0.4018,
        "predicted_SLG": 0.3272,
        "predicted_SO": 1.1057
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.286,
          "after": 0.2406,
          "delta": -0.0454,
          "percent_delta": -0.1587,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0024,
          "delta": 0.0024,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.857,
          "after": 3.8319,
          "delta": -0.0251,
          "percent_delta": -0.0065,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.224,
          "after": 0.2164,
          "delta": -0.0076,
          "percent_delta": -0.0339,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.143,
          "after": 0.1723,
          "delta": 0.0293,
          "percent_delta": 0.2049,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.77,
          "after": 0.7637,
          "delta": -0.0063,
          "percent_delta": -0.0082,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.0958,
          "delta": -0.0042,
          "percent_delta": -0.042,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.269,
          "after": 0.2636,
          "delta": -0.0054,
          "percent_delta": -0.0201,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.571,
          "after": 0.542,
          "delta": -0.029,
          "percent_delta": -0.0508,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4,
          "after": 0.4018,
          "delta": 0.0018,
          "percent_delta": 0.0045,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.336,
          "after": 0.3272,
          "delta": -0.0088,
          "percent_delta": -0.0262,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.143,
          "after": 1.1057,
          "delta": -0.0373,
          "percent_delta": -0.0326,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.336,
          "after": 0.3272,
          "delta": -0.0088,
          "percent_delta": -0.0262,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 7,
        "season": 7
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2406,
        "predicted_3B": 0.0024,
        "predicted_AB": 3.8319,
        "predicted_AVG": 0.191,
        "predicted_BB": 0.1704,
        "predicted_H": 0.7319,
        "predicted_HBP": 0.018,
        "predicted_HR": 0.0919,
        "predicted_OBP": 0.2254,
        "predicted_R": 0.5031,
        "predicted_RBI": 0.373,
        "predicted_SLG": 0.327,
        "predicted_SO": 1.1178
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2406,
          "after": 0.2406,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0024,
          "after": 0.0024,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8319,
          "after": 3.8319,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2164,
          "after": 0.191,
          "delta": -0.0254,
          "percent_delta": -0.1174,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1723,
          "after": 0.1704,
          "delta": -0.0019,
          "percent_delta": -0.011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7637,
          "after": 0.7319,
          "delta": -0.0318,
          "percent_delta": -0.0416,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.018,
          "after": 0.018,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0958,
          "after": 0.0919,
          "delta": -0.0039,
          "percent_delta": -0.0407,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2636,
          "after": 0.2254,
          "delta": -0.0382,
          "percent_delta": -0.1449,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.542,
          "after": 0.5031,
          "delta": -0.0389,
          "percent_delta": -0.0718,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4018,
          "after": 0.373,
          "delta": -0.0288,
          "percent_delta": -0.0717,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3272,
          "after": 0.327,
          "delta": -0.0002,
          "percent_delta": -0.0006,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.1057,
          "after": 1.1178,
          "delta": 0.0121,
          "percent_delta": 0.0109,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.2636,
          "after": 0.2254,
          "delta": -0.0382,
          "percent_delta": -0.1449,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.86), rates preserved: AVG=0.190 HR/AB=0.024",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2406,
          "after": 0.0,
          "delta": -0.2406,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0024,
          "after": 0.0,
          "delta": -0.0024,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8319,
          "after": 4.0,
          "delta": 0.1681,
          "percent_delta": 0.0439,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1704,
          "after": 0.0,
          "delta": -0.1704,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7319,
          "after": 1.0,
          "delta": 0.2681,
          "percent_delta": 0.3663,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.018,
          "after": 0.0,
          "delta": -0.018,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0919,
          "after": 0.0,
          "delta": -0.0919,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.373,
          "after": 0.0,
          "delta": -0.373,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1178,
          "after": 1.0,
          "delta": -0.1178,
          "percent_delta": -0.1054,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 3,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.7319,
          "after": 1.0,
          "delta": 0.2681,
          "percent_delta": 0.3663,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.373,
          "after": 0.0,
          "delta": -0.373,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5031,
          "after": 1.0,
          "delta": 0.4969,
          "percent_delta": 0.9877,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5031,
          "after": 1.0,
          "delta": 0.4969,
          "percent_delta": 0.9877,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.191,
          "after": 0.25,
          "delta": 0.059,
          "percent_delta": 0.3089,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2254,
          "after": 0.25,
          "delta": 0.0246,
          "percent_delta": 0.1091,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.327,
          "after": 0.25,
          "delta": -0.077,
          "percent_delta": -0.2355,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.191,
          "after": 0.25,
          "delta": 0.059,
          "percent_delta": 0.3089,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.327,
          "after": 0.25,
          "delta": -0.077,
          "percent_delta": -0.2355,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.191,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2254,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_RF": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.327,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.191,
          "delta": -0.059,
          "percent_delta": -0.236,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2254,
          "delta": -0.0246,
          "percent_delta": -0.0982,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.327,
          "delta": 0.077,
          "percent_delta": 0.3078,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.327,
          "delta": 0.077,
          "percent_delta": 0.3078,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.191,
          "delta": -0.059,
          "percent_delta": -0.236,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.286,
        "after": 1.0,
        "delta": 0.714,
        "percent_delta": 2.4965,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.857,
        "after": 4.0,
        "delta": 0.143,
        "percent_delta": 0.0371,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.224,
        "after": 0.191,
        "delta": -0.033,
        "percent_delta": -0.1473,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.143,
        "after": 0.0,
        "delta": -0.143,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.77,
        "after": 1.0,
        "delta": 0.23,
        "percent_delta": 0.2987,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.269,
        "after": 0.2254,
        "delta": -0.0436,
        "percent_delta": -0.1621,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.571,
        "after": 0.0,
        "delta": -0.571,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.4,
        "after": 0.0,
        "delta": -0.4,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.336,
        "after": 0.327,
        "delta": -0.009,
        "percent_delta": -0.0268,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.143,
        "after": 1.0,
        "delta": -0.143,
        "percent_delta": -0.1251,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 4,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_2B",
        "before": 0.286,
        "after": 1.0,
        "delta": 0.714,
        "percent_delta": 2.4965,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_R",
        "before": 0.571,
        "after": 0.0,
        "delta": -0.571,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.286-
predicted_3B0.000-
predicted_AB3.857-
predicted_AVG0.224-
predicted_BB0.143-
predicted_H0.770-
predicted_HR0.100-
predicted_OBP0.269-
predicted_R0.571-
predicted_RBI0.400-
predicted_SLG0.336-
predicted_SO1.143-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.241-0.045
predicted_3B0.0020.002
predicted_AB3.832-0.025
predicted_AVG0.216-0.008
predicted_BB0.1720.029
predicted_H0.764-0.006
predicted_HBP0.018-
predicted_HR0.096-0.004
predicted_OBP0.264-0.005
predicted_R0.542-0.029
predicted_RBI0.4020.002
predicted_SLG0.327-0.009
predicted_SO1.106-0.037
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2410.000
predicted_3B0.0020.000
predicted_AB3.8320.000
predicted_AVG0.191-0.025
predicted_BB0.170-0.002
predicted_H0.732-0.032
predicted_HBP0.0180.000
predicted_HR0.092-0.004
predicted_OBP0.225-0.038
predicted_R0.503-0.039
predicted_RBI0.373-0.029
predicted_SLG0.327-0.000
predicted_SO1.1180.012
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.86), rates preserved: AVG=0.190 HR/AB=0.024

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.241
predicted_3B0.000-0.002
predicted_AB4.0000.168
predicted_AVG0.2500.059
predicted_BB0.000-0.170
predicted_H1.0000.268
predicted_HR0.000-0.092
predicted_OBP0.2500.025
predicted_R1.0000.497
predicted_RBI0.000-0.373
predicted_SLG0.250-0.077
predicted_SO1.000-0.118
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 7
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0002.0000.0000.0000.0001.0002.0001.0006.0000.11110.15790.11110.11110.00000.05560.05560.3333
last_100.207-27.0006.0002.0000.0001.0004.0004.0001.0008.0000.22220.25000.40740.22220.03700.14820.03700.2963
season0.607-27.0006.0002.0000.0001.0004.0004.0001.0008.0000.22220.25000.40740.22220.03700.14820.03700.2963
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1340
predicted_3B0.0080
predicted_AB3.7730
predicted_AVG0.1985
predicted_BB0.2410
predicted_H0.7490
predicted_HBP0.0180
predicted_HR0.0860
predicted_OBP0.2510
predicted_R0.4740
predicted_RBI0.4060
predicted_SLG0.3064
predicted_SO1.0180
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.28600.13400.2406model_form_blend
predicted_3B0.00000.00800.0024model_form_blend
predicted_AB3.85703.77303.8319model_form_blend
predicted_AVG0.22400.19850.2164model_form_blend
predicted_BB0.14300.24100.1723model_form_blend
predicted_H0.77000.74900.7637model_form_blend
predicted_HBP-0.01800.0180form_only
predicted_HR0.10000.08600.0958model_form_blend
predicted_OBP0.26900.25100.2636model_form_blend
predicted_R0.57100.47400.5420model_form_blend
predicted_RBI0.40000.40600.4018model_form_blend
predicted_SLG0.33600.30640.3272model_form_blend
predicted_SO1.14301.01801.1057model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date8
Season rows before report date8
Report year2026
Profile rows used7
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B1
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.222

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP1
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB1
Hitting_battingOrder7
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedRF
gameID20260617_CHW@NYY
game_typefull
mlbID695731
playerID695731
playerNameBraden Montgomery
posOF
startedTrue
startingPositionRF
teamCHW
teamID6
game_date2026-06-17
sl_k_percent28.6
sl_bb_percent3.6
sl_woba0.285
sl_xwoba0.299
sl_xba0.256
sl_xslg0.412
sl_sweet_spot_percent42.1
sl_barrel_batted_rate10.5
sl_hard_hit_percent47.4
sl_exit_velocity_avg91.9
sl_launch_angle_avg4.8
sl_whiff_percent26.0
sl_swing_percent50.5
Tristan Peters (671976) · BATTER · CF · Team CHW
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 167
All-history rows before 20260618: 167
System season_avg: 0.2940
Data season_avg (2026 season-to-date): 0.2923
Diff (system - data): 0.0017
System opponent_avg: 0.2940

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2420.0000.000Hitting_2B0.1860.000-0.1860.000
predicted_3B0.0320.0000.000Hitting_3B0.0180.000-0.0180.000
predicted_AB2.8554.0003.000Hitting_AB2.9703.0001.0301.000
predicted_AVG0.2530.2500.333Hitting_AVG0.2920.000-0.0420.250
predicted_BB0.2260.0000.000Hitting_BB0.2630.000-0.2630.000
predicted_CS-0.0000.000BaseRunning_CS0.0120.000-0.0120.000
predicted_H0.2501.0001.000Hitting_H0.8680.0000.1321.000
predicted_HR0.0300.0000.000Hitting_HR0.0540.000-0.0540.000
predicted_OBP0.2910.2500.333Hitting_OBP0.3550.000-0.1050.250
predicted_R0.3230.0000.000Hitting_R0.3650.000-0.3650.000
predicted_RBI0.1700.0000.000Hitting_RBI0.3410.000-0.3410.000
predicted_SLG0.4320.2500.333Hitting_SLG0.4210.000-0.1710.250
predicted_SO0.5972.0001.000Hitting_SO0.6231.0001.3771.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics3
Deboosted Metrics7
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_SO: 0.5970 -> 2.0000 (boost 1.4030, worse)
Biggest Deboostpredicted_R: 0.3230 -> 0.0000 (deboost -0.3230, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend55050predicted_H: 0.2500 -> 0.4717 (boost 0.2217, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.4527 -> 0.3260 (deboost -0.1267, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_SO: 0.6334 -> 1.0000 (boost 0.3666, worse)predicted_H: 0.4520 -> 0.0000 (deboost -0.4520, worse)AB rounded to 3 (raw=2.92), rates preserved: AVG=0.155 HR/AB=0.019
5consistency_constraints21111predicted_H: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_R: 0.3123 -> 0.0000 (deboost -0.3123, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.1546 -> 0.3330 (boost 0.1784, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference22011predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.1546 (deboost -0.1784, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "671976",
  "player_name": "Tristan Peters",
  "position": "CF",
  "team": "CHW",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.242,
        "predicted_3B": 0.032,
        "predicted_AB": 2.855,
        "predicted_AVG": 0.253,
        "predicted_BB": 0.226,
        "predicted_H": 0.25,
        "predicted_HR": 0.03,
        "predicted_OBP": 0.291,
        "predicted_R": 0.323,
        "predicted_RBI": 0.17,
        "predicted_SLG": 0.432,
        "predicted_SO": 0.597
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2399,
        "predicted_3B": 0.0492,
        "predicted_AB": 2.9244,
        "predicted_AVG": 0.2564,
        "predicted_BB": 0.2264,
        "predicted_H": 0.4717,
        "predicted_HBP": 0.013,
        "predicted_HR": 0.0567,
        "predicted_OBP": 0.3011,
        "predicted_R": 0.3365,
        "predicted_RBI": 0.2931,
        "predicted_SLG": 0.4527,
        "predicted_SO": 0.6266
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.242,
          "after": 0.2399,
          "delta": -0.0021,
          "percent_delta": -0.0087,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.032,
          "after": 0.0492,
          "delta": 0.0172,
          "percent_delta": 0.5375,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.855,
          "after": 2.9244,
          "delta": 0.0694,
          "percent_delta": 0.0243,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.253,
          "after": 0.2564,
          "delta": 0.0034,
          "percent_delta": 0.0134,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.226,
          "after": 0.2264,
          "delta": 0.0004,
          "percent_delta": 0.0018,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.25,
          "after": 0.4717,
          "delta": 0.2217,
          "percent_delta": 0.8868,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.03,
          "after": 0.0567,
          "delta": 0.0267,
          "percent_delta": 0.89,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.291,
          "after": 0.3011,
          "delta": 0.0101,
          "percent_delta": 0.0347,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.323,
          "after": 0.3365,
          "delta": 0.0135,
          "percent_delta": 0.0418,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.17,
          "after": 0.2931,
          "delta": 0.1231,
          "percent_delta": 0.7241,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.432,
          "after": 0.4527,
          "delta": 0.0207,
          "percent_delta": 0.0479,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.597,
          "after": 0.6266,
          "delta": 0.0296,
          "percent_delta": 0.0496,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 5,
        "deboosted_metrics": 0,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.25,
          "after": 0.4717,
          "delta": 0.2217,
          "percent_delta": 0.8868,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 62
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2399,
        "predicted_3B": 0.0492,
        "predicted_AB": 2.9244,
        "predicted_AVG": 0.1546,
        "predicted_BB": 0.2239,
        "predicted_H": 0.452,
        "predicted_HBP": 0.013,
        "predicted_HR": 0.0544,
        "predicted_OBP": 0.2147,
        "predicted_R": 0.3123,
        "predicted_RBI": 0.2721,
        "predicted_SLG": 0.326,
        "predicted_SO": 0.6334
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2399,
          "after": 0.2399,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0492,
          "after": 0.0492,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9244,
          "after": 2.9244,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2564,
          "after": 0.1546,
          "delta": -0.1018,
          "percent_delta": -0.397,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2264,
          "after": 0.2239,
          "delta": -0.0025,
          "percent_delta": -0.011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.4717,
          "after": 0.452,
          "delta": -0.0197,
          "percent_delta": -0.0418,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.013,
          "after": 0.013,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0567,
          "after": 0.0544,
          "delta": -0.0023,
          "percent_delta": -0.0406,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3011,
          "after": 0.2147,
          "delta": -0.0864,
          "percent_delta": -0.2869,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3365,
          "after": 0.3123,
          "delta": -0.0242,
          "percent_delta": -0.0719,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2931,
          "after": 0.2721,
          "delta": -0.021,
          "percent_delta": -0.0716,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4527,
          "after": 0.326,
          "delta": -0.1267,
          "percent_delta": -0.2799,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6266,
          "after": 0.6334,
          "delta": 0.0068,
          "percent_delta": 0.0109,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4527,
          "after": 0.326,
          "delta": -0.1267,
          "percent_delta": -0.2799,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.92), rates preserved: AVG=0.155 HR/AB=0.019",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2399,
          "after": 0.0,
          "delta": -0.2399,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0492,
          "after": 0.0,
          "delta": -0.0492,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9244,
          "after": 3.0,
          "delta": 0.0756,
          "percent_delta": 0.0259,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2239,
          "after": 0.0,
          "delta": -0.2239,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.452,
          "after": 0.0,
          "delta": -0.452,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.013,
          "after": 0.0,
          "delta": -0.013,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0544,
          "after": 0.0,
          "delta": -0.0544,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2721,
          "after": 0.0,
          "delta": -0.2721,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6334,
          "after": 1.0,
          "delta": 0.3666,
          "percent_delta": 0.5788,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.6334,
          "after": 1.0,
          "delta": 0.3666,
          "percent_delta": 0.5788,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 0.452,
          "after": 0.0,
          "delta": -0.452,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3123,
          "after": 0.0,
          "delta": -0.3123,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3123,
          "after": 0.0,
          "delta": -0.3123,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1546,
          "after": 0.333,
          "delta": 0.1784,
          "percent_delta": 1.1539,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2147,
          "after": 0.333,
          "delta": 0.1183,
          "percent_delta": 0.551,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.326,
          "after": 0.333,
          "delta": 0.007,
          "percent_delta": 0.0215,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1546,
          "after": 0.333,
          "delta": 0.1784,
          "percent_delta": 1.1539,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.1546,
        "predicted_BB": 0.0,
        "predicted_CF": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2147,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.326,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1546,
          "delta": -0.1784,
          "percent_delta": -0.5358,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2147,
          "delta": -0.1183,
          "percent_delta": -0.3552,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.326,
          "delta": -0.007,
          "percent_delta": -0.0209,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1546,
          "delta": -0.1784,
          "percent_delta": -0.5358,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.242,
        "after": 0.0,
        "delta": -0.242,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.032,
        "after": 0.0,
        "delta": -0.032,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.855,
        "after": 4.0,
        "delta": 1.145,
        "percent_delta": 0.4011,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.253,
        "after": 0.1546,
        "delta": -0.0984,
        "percent_delta": -0.3889,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.226,
        "after": 0.0,
        "delta": -0.226,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.25,
        "after": 1.0,
        "delta": 0.75,
        "percent_delta": 3.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.03,
        "after": 0.0,
        "delta": -0.03,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_OBP",
        "before": 0.291,
        "after": 0.2147,
        "delta": -0.0763,
        "percent_delta": -0.2622,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.323,
        "after": 0.0,
        "delta": -0.323,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.17,
        "after": 0.0,
        "delta": -0.17,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.432,
        "after": 0.326,
        "delta": -0.106,
        "percent_delta": -0.2454,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.597,
        "after": 2.0,
        "delta": 1.403,
        "percent_delta": 2.3501,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 3,
      "deboosted_metrics": 7,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.597,
        "after": 2.0,
        "delta": 1.403,
        "percent_delta": 2.3501,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_R",
        "before": 0.323,
        "after": 0.0,
        "delta": -0.323,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.242-
predicted_3B0.032-
predicted_AB2.855-
predicted_AVG0.253-
predicted_BB0.226-
predicted_H0.250-
predicted_HR0.030-
predicted_OBP0.291-
predicted_R0.323-
predicted_RBI0.170-
predicted_SLG0.432-
predicted_SO0.597-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.240-0.002
predicted_3B0.0490.017
predicted_AB2.9240.069
predicted_AVG0.2560.003
predicted_BB0.2260.000
predicted_H0.4720.222
predicted_HBP0.013-
predicted_HR0.0570.027
predicted_OBP0.3010.010
predicted_R0.3370.014
predicted_RBI0.2930.123
predicted_SLG0.4530.021
predicted_SO0.6270.030
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2400.000
predicted_3B0.0490.000
predicted_AB2.9240.000
predicted_AVG0.155-0.102
predicted_BB0.224-0.003
predicted_H0.452-0.020
predicted_HBP0.0130.000
predicted_HR0.054-0.002
predicted_OBP0.215-0.086
predicted_R0.312-0.024
predicted_RBI0.272-0.021
predicted_SLG0.326-0.127
predicted_SO0.6330.007
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.92), rates preserved: AVG=0.155 HR/AB=0.019

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H0.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0001.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.240
predicted_3B0.000-0.049
predicted_AB3.0000.076
predicted_AVG0.3330.178
predicted_BB0.000-0.224
predicted_H1.0000.548
predicted_HR0.000-0.054
predicted_OBP0.3330.118
predicted_R0.000-0.312
predicted_RBI0.000-0.272
predicted_SLG0.3330.007
predicted_SO1.0000.367
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 62
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-14.0002.0000.0001.0001.0003.0002.0001.0004.0000.14290.20000.50000.14290.07140.21430.07140.2857
last_100.2010-31.0009.0005.0001.0001.0007.0003.0002.0006.0000.29030.33330.61290.29030.03230.22580.06450.1935
season0.6062-177.00052.00015.0002.0003.00021.00020.00014.00037.0000.29380.34900.45200.29380.01690.11860.07910.2090
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2370
predicted_3B0.0740
predicted_AB3.0240
predicted_AVG0.2612
predicted_BB0.2270
predicted_H0.7900
predicted_HBP0.0130
predicted_HR0.0950
predicted_OBP0.3157
predicted_R0.3560
predicted_RBI0.4700
predicted_SLG0.4824
predicted_SO0.6690
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.24200.23700.2399model_form_blend
predicted_3B0.03200.07400.0492model_form_blend
predicted_AB2.85503.02402.9244model_form_blend
predicted_AVG0.25300.26120.2564model_form_blend
predicted_BB0.22600.22700.2264model_form_blend
predicted_H0.25000.79000.4717model_form_blend
predicted_HBP-0.01300.0130form_only
predicted_HR0.03000.09500.0567model_form_blend
predicted_OBP0.29100.31570.3011model_form_blend
predicted_R0.32300.35600.3365model_form_blend
predicted_RBI0.17000.47000.2931model_form_blend
predicted_SLG0.43200.48240.4527model_form_blend
predicted_SO0.59700.66900.6266model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date167
Season rows before report date167
Report year2026
Profile rows used62
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO2
SF0
HBP0
season_avg0.294

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB0
Hitting_battingOrder8
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedCF
gameID20260614_LAD@CHW
game_typefull
mlbID671976
playerID671976
playerNameTristan Peters
posCF
startedTrue
startingPositionCF
teamCHW
teamID6
game_date2026-06-14
sl_k_percent18.4
sl_bb_percent7.5
sl_woba0.354
sl_xwoba0.305
sl_xba0.252
sl_xslg0.369
sl_sweet_spot_percent32.7
sl_barrel_batted_rate4.8
sl_hard_hit_percent27.4
sl_exit_velocity_avg86.4
sl_launch_angle_avg13.5
sl_whiff_percent22.7
sl_swing_percent56.9
Luisangel Acuña (682668) · BATTER · SS · Team CHW
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 125
All-history rows before 20260618: 125
System season_avg: 0.2020
Data season_avg (2026 season-to-date): 0.1811
Diff (system - data): 0.0209
System opponent_avg: 0.2020
System season_avg diverges from 2026 season-to-date by 0.0209. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0450.0000.000Hitting_2B0.0480.000-0.0480.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.7053.0003.000Hitting_AB2.8722.0000.1281.000
predicted_AVG0.2810.0000.333Hitting_AVG0.1810.000-0.1810.000
predicted_BB0.1591.0000.000Hitting_BB0.2240.0000.7761.000
predicted_CS-0.0000.000BaseRunning_CS0.0320.000-0.0320.000
predicted_H0.6400.0001.000Hitting_H0.5200.000-0.5200.000
predicted_HR0.0500.0000.000Hitting_HR0.0000.0000.0000.000
predicted_OBP0.3140.2500.333Hitting_OBP0.2450.0000.0050.250
predicted_R0.2950.0000.000Hitting_R0.3120.000-0.3120.000
predicted_RBI0.3400.0000.000Hitting_RBI0.2000.000-0.2000.000
predicted_SLG0.3400.0000.333Hitting_SLG0.1980.000-0.1980.000
predicted_SO0.5232.0001.000Hitting_SO0.5682.0001.4320.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics3
Deboosted Metrics7
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_SO: 0.5230 -> 2.0000 (boost 1.4770, worse)
Biggest Deboostpredicted_H: 0.6400 -> 0.0000 (deboost -0.6400, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend31212predicted_AB: 2.7050 -> 2.7647 (boost 0.0597, better)predicted_SLG: 0.3400 -> 0.3325 (deboost -0.0075, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3146 -> 0.2764 (deboost -0.0382, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73425predicted_SO: 0.5339 -> 1.0000 (boost 0.4661, worse)predicted_RBI: 0.3196 -> 0.0000 (deboost -0.3196, worse)AB rounded to 3 (raw=2.76), rates preserved: AVG=0.237 HR/AB=0.013
5consistency_constraints10101-predicted_R: 0.2870 -> 0.0000 (deboost -0.2870, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.2371 -> 0.3330 (boost 0.0959, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference32112predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.2371 (deboost -0.0959, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "682668",
  "player_name": "Luisangel Acuña",
  "position": "SS",
  "team": "CHW",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.045,
        "predicted_3B": 0.0,
        "predicted_AB": 2.705,
        "predicted_AVG": 0.281,
        "predicted_BB": 0.159,
        "predicted_H": 0.64,
        "predicted_HR": 0.05,
        "predicted_OBP": 0.314,
        "predicted_R": 0.295,
        "predicted_RBI": 0.34,
        "predicted_SLG": 0.34,
        "predicted_SO": 0.523
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0691,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.7647,
        "predicted_AVG": 0.2739,
        "predicted_BB": 0.1519,
        "predicted_H": 0.6839,
        "predicted_HBP": 0.085,
        "predicted_HR": 0.0374,
        "predicted_OBP": 0.3146,
        "predicted_R": 0.3092,
        "predicted_RBI": 0.3443,
        "predicted_SLG": 0.3325,
        "predicted_SO": 0.5281
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.045,
          "after": 0.0691,
          "delta": 0.0241,
          "percent_delta": 0.5356,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.705,
          "after": 2.7647,
          "delta": 0.0597,
          "percent_delta": 0.0221,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.281,
          "after": 0.2739,
          "delta": -0.0071,
          "percent_delta": -0.0253,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.159,
          "after": 0.1519,
          "delta": -0.0071,
          "percent_delta": -0.0447,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.64,
          "after": 0.6839,
          "delta": 0.0439,
          "percent_delta": 0.0686,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.05,
          "after": 0.0374,
          "delta": -0.0126,
          "percent_delta": -0.252,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.314,
          "after": 0.3146,
          "delta": 0.0006,
          "percent_delta": 0.0019,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.295,
          "after": 0.3092,
          "delta": 0.0142,
          "percent_delta": 0.0481,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.34,
          "after": 0.3443,
          "delta": 0.0043,
          "percent_delta": 0.0126,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.34,
          "after": 0.3325,
          "delta": -0.0075,
          "percent_delta": -0.0221,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.523,
          "after": 0.5281,
          "delta": 0.0051,
          "percent_delta": 0.0098,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.705,
          "after": 2.7647,
          "delta": 0.0597,
          "percent_delta": 0.0221,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.34,
          "after": 0.3325,
          "delta": -0.0075,
          "percent_delta": -0.0221,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 44
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0691,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.7647,
        "predicted_AVG": 0.2371,
        "predicted_BB": 0.1502,
        "predicted_H": 0.6554,
        "predicted_HBP": 0.085,
        "predicted_HR": 0.0359,
        "predicted_OBP": 0.2764,
        "predicted_R": 0.287,
        "predicted_RBI": 0.3196,
        "predicted_SLG": 0.3015,
        "predicted_SO": 0.5339
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0691,
          "after": 0.0691,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.7647,
          "after": 2.7647,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2739,
          "after": 0.2371,
          "delta": -0.0368,
          "percent_delta": -0.1344,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1519,
          "after": 0.1502,
          "delta": -0.0017,
          "percent_delta": -0.0112,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6839,
          "after": 0.6554,
          "delta": -0.0285,
          "percent_delta": -0.0417,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.085,
          "after": 0.085,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0374,
          "after": 0.0359,
          "delta": -0.0015,
          "percent_delta": -0.0401,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3146,
          "after": 0.2764,
          "delta": -0.0382,
          "percent_delta": -0.1214,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3092,
          "after": 0.287,
          "delta": -0.0222,
          "percent_delta": -0.0718,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3443,
          "after": 0.3196,
          "delta": -0.0247,
          "percent_delta": -0.0717,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3325,
          "after": 0.3015,
          "delta": -0.031,
          "percent_delta": -0.0932,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5281,
          "after": 0.5339,
          "delta": 0.0058,
          "percent_delta": 0.011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3146,
          "after": 0.2764,
          "delta": -0.0382,
          "percent_delta": -0.1214,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.76), rates preserved: AVG=0.237 HR/AB=0.013",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0691,
          "after": 0.0,
          "delta": -0.0691,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.7647,
          "after": 3.0,
          "delta": 0.2353,
          "percent_delta": 0.0851,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1502,
          "after": 0.0,
          "delta": -0.1502,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6554,
          "after": 1.0,
          "delta": 0.3446,
          "percent_delta": 0.5258,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.085,
          "after": 0.0,
          "delta": -0.085,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0359,
          "after": 0.0,
          "delta": -0.0359,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3196,
          "after": 0.0,
          "delta": -0.3196,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5339,
          "after": 1.0,
          "delta": 0.4661,
          "percent_delta": 0.873,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.5339,
          "after": 1.0,
          "delta": 0.4661,
          "percent_delta": 0.873,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3196,
          "after": 0.0,
          "delta": -0.3196,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.287,
          "after": 0.0,
          "delta": -0.287,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.287,
          "after": 0.0,
          "delta": -0.287,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2371,
          "after": 0.333,
          "delta": 0.0959,
          "percent_delta": 0.4045,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2764,
          "after": 0.333,
          "delta": 0.0566,
          "percent_delta": 0.2048,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3015,
          "after": 0.333,
          "delta": 0.0315,
          "percent_delta": 0.1045,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2371,
          "after": 0.333,
          "delta": 0.0959,
          "percent_delta": 0.4045,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2371,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2764,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3015,
        "predicted_SO": 2.0,
        "predicted_SS": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2371,
          "delta": -0.0959,
          "percent_delta": -0.2881,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2764,
          "delta": -0.0566,
          "percent_delta": -0.17,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3015,
          "delta": -0.0315,
          "percent_delta": -0.0945,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2371,
          "delta": -0.0959,
          "percent_delta": -0.2881,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.045,
        "after": 0.0,
        "delta": -0.045,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.705,
        "after": 3.0,
        "delta": 0.295,
        "percent_delta": 0.1091,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.281,
        "after": 0.2371,
        "delta": -0.0439,
        "percent_delta": -0.1562,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.159,
        "after": 1.0,
        "delta": 0.841,
        "percent_delta": 5.2893,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.64,
        "after": 0.0,
        "delta": -0.64,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.05,
        "after": 0.0,
        "delta": -0.05,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.314,
        "after": 0.2764,
        "delta": -0.0376,
        "percent_delta": -0.1197,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.295,
        "after": 0.0,
        "delta": -0.295,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.34,
        "after": 0.0,
        "delta": -0.34,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.34,
        "after": 0.3015,
        "delta": -0.0385,
        "percent_delta": -0.1132,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.523,
        "after": 2.0,
        "delta": 1.477,
        "percent_delta": 2.8241,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 3,
      "deboosted_metrics": 7,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.523,
        "after": 2.0,
        "delta": 1.477,
        "percent_delta": 2.8241,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.64,
        "after": 0.0,
        "delta": -0.64,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.045-
predicted_3B0.000-
predicted_AB2.705-
predicted_AVG0.281-
predicted_BB0.159-
predicted_H0.640-
predicted_HR0.050-
predicted_OBP0.314-
predicted_R0.295-
predicted_RBI0.340-
predicted_SLG0.340-
predicted_SO0.523-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.0690.024
predicted_3B0.0010.001
predicted_AB2.7650.060
predicted_AVG0.274-0.007
predicted_BB0.152-0.007
predicted_H0.6840.044
predicted_HBP0.085-
predicted_HR0.037-0.013
predicted_OBP0.3150.001
predicted_R0.3090.014
predicted_RBI0.3440.004
predicted_SLG0.333-0.008
predicted_SO0.5280.005
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0690.000
predicted_3B0.0010.000
predicted_AB2.7650.000
predicted_AVG0.237-0.037
predicted_BB0.150-0.002
predicted_H0.655-0.028
predicted_HBP0.0850.000
predicted_HR0.036-0.002
predicted_OBP0.276-0.038
predicted_R0.287-0.022
predicted_RBI0.320-0.025
predicted_SLG0.301-0.031
predicted_SO0.5340.006
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.76), rates preserved: AVG=0.237 HR/AB=0.013

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.069
predicted_3B0.000-0.001
predicted_AB3.0000.235
predicted_AVG0.3330.096
predicted_BB0.000-0.150
predicted_H1.0000.345
predicted_HR0.000-0.036
predicted_OBP0.3330.057
predicted_R0.000-0.287
predicted_RBI0.000-0.320
predicted_SLG0.3330.032
predicted_SO1.0000.466
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 44
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-12.0005.0001.0000.0000.0003.0001.0000.0002.0000.41670.46150.50000.41670.00000.25000.00000.1667
last_100.2010-26.0008.0001.0000.0000.0004.0004.0001.0004.0000.30770.35710.34620.30770.00000.15380.03850.1538
season0.6044-119.00024.0002.0000.0000.0008.00013.0007.00023.0000.20170.25380.21850.20170.00000.06720.05880.1933
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1060
predicted_3B0.0020
predicted_AB2.8560
predicted_AVG0.2630
predicted_BB0.1410
predicted_H0.7510
predicted_HBP0.0850
predicted_HR0.0180
predicted_OBP0.3155
predicted_R0.3310
predicted_RBI0.3510
predicted_SLG0.3209
predicted_SO0.5360
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.04500.10600.0691model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB2.70502.85602.7647model_form_blend
predicted_AVG0.28100.26300.2739model_form_blend
predicted_BB0.15900.14100.1519model_form_blend
predicted_H0.64000.75100.6839model_form_blend
predicted_HBP-0.08500.0850form_only
predicted_HR0.05000.01800.0374model_form_blend
predicted_OBP0.31400.31550.3146model_form_blend
predicted_R0.29500.33100.3092model_form_blend
predicted_RBI0.34000.35100.3443model_form_blend
predicted_SLG0.34000.32090.3325model_form_blend
predicted_SO0.52300.53600.5281model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date125
Season rows before report date125
Report year2026
Profile rows used44
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO2
SF0
HBP0
season_avg0.202

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB2
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB0
Hitting_battingOrder8
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedSS
gameID20260617_CHW@NYY
game_typefull
mlbID682668
playerID682668
playerNameLuisangel Acuña
posCF
startedTrue
startingPositionSS
teamCHW
teamID6
game_date2026-06-17
sl_k_percent17.7
sl_bb_percent5.4
sl_woba0.216
sl_xwoba0.267
sl_xba0.239
sl_xslg0.305
sl_sweet_spot_percent19.2
sl_barrel_batted_rate3.0
sl_hard_hit_percent38.4
sl_exit_velocity_avg89.4
sl_launch_angle_avg1.8
sl_whiff_percent24.1
sl_swing_percent49.9
Bryan Hudson (663542) · PITCHER · Starter · Team CHW
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 24
All-history rows before 20260618: 24

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB3.0003.0003.000Pitching_BB0.4170.0002.5833.000
predicted_ER0.0000.0000.000Pitching_ER0.1670.000-0.1670.000
predicted_H3.0003.0003.000Pitching_H0.8750.0002.1253.000
predicted_IP5.0005.0005.000Pitching_InningsPitched0.8711.0004.1294.000
predicted_SO4.0004.0004.000Pitching_SO0.9581.0003.0423.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 7.0000 -> 5.0000 (deboost -2.0000, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2starter_usage_guardrail10101-predicted_IP: 7.0000 -> 5.0000 (deboost -2.0000, worse)Starter workload capped by recent innings, season ERA/WHIP, and team-form context.
3current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "663542",
  "player_name": "Bryan Hudson",
  "position": "Starter",
  "team": "CHW",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 3.0,
        "predicted_ER": 0.0,
        "predicted_H": 3.0,
        "predicted_HR": 0.0,
        "predicted_IP": 7.0,
        "predicted_SO": 4.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "starter_usage_guardrail",
      "description": "Starter workload capped by recent innings, season ERA/WHIP, and team-form context.",
      "stats": {
        "predicted_BB": 3.0,
        "predicted_ER": 0.0,
        "predicted_H": 3.0,
        "predicted_HR": 0.0,
        "predicted_IP": 5.0,
        "predicted_SO": 4.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 7.0,
          "after": 5.0,
          "delta": -2.0,
          "percent_delta": -0.2857,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 7.0,
          "after": 5.0,
          "delta": -2.0,
          "percent_delta": -0.2857,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 3,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 3.0,
        "predicted_ER": 0.0,
        "predicted_H": 3.0,
        "predicted_HR": 0.0,
        "predicted_IP": 5.0,
        "predicted_R": 0.0,
        "predicted_SO": 4.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 3.0,
        "after": 3.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 3.0,
        "after": 3.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 7.0,
        "after": 5.0,
        "delta": -2.0,
        "percent_delta": -0.2857,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 4.0,
        "after": 4.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 7.0,
        "after": 5.0,
        "delta": -2.0,
        "percent_delta": -0.2857,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB3.000-
predicted_ER0.000-
predicted_H3.000-
predicted_HR0.000-
predicted_IP7.000-
predicted_SO4.000-
2. starter_usage_guardrail

Starter workload capped by recent innings, season ERA/WHIP, and team-form context.

MetricValueDelta vs Prev Step
predicted_BB3.0000.000
predicted_ER0.0000.000
predicted_H3.0000.000
predicted_HR0.0000.000
predicted_IP5.000-2.000
predicted_SO4.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 24
Reference playing time: 7.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.0002.0005.0001.0002.0000.0003.60001.20000.40001.00000.20000.40000.0000
last_100.351010.0002.00010.0002.0007.0000.0001.80001.20000.20001.00000.20000.70000.0000
season0.202423.0004.00021.00010.00023.0000.0001.56521.34780.17390.91300.43481.00000.0000
Weighted Prediction From Real Data
MetricValue
predicted_BB1.2720
predicted_ER1.6450
predicted_ERA3.5796
predicted_H4.0450
predicted_HR0.3150
predicted_IP4.0000
predicted_SO3.2600
predicted_WHIP1.2858
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB3.00001.27202.2583model_form_blend
predicted_ER0.00001.64500.7060model_form_blend
predicted_ERA-3.57963.5796form_only
predicted_H3.00004.04503.4485model_form_blend
predicted_HR0.00000.31500.1352model_form_blend
predicted_IP7.00004.00005.2000model_form_blend
predicted_SO4.00003.26003.6824model_form_blend
predicted_WHIP-1.28581.2858form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date24
Season rows before report date24
Report year2026
Profile rows used24
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP5.0
H3
R0
ER0
BB3
SO4
HR0
BF21
Pitches84

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA1.57
Pitching_Flyouts0
Pitching_Groundouts2
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches11
Pitching_R0
Pitching_SO1
Pitching_Strikes9
Pitching_Wild Pitch0
Pitching_decisionW
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260519_CHW@SEA
game_typefull
mlbID663542
playerID663542
playerNameBryan Hudson
posP
startedFalse
startingPositionP
teamCHW
teamID6
game_date2026-05-19
game_pk823136.0
sl_k_percent20.0
sl_bb_percent10.0
sl_woba0.285
sl_xwoba0.298
sl_sweet_spot_percent30.9
sl_barrel_batted_rate3.2
sl_hard_hit_percent35.1
sl_whiff_percent22.9
sl_swing_percent46.2
sv_pitch_count11.0
sv_outs_recorded_est3.0
sv_release_speed89.7090909090909
sv_release_spin_rate2132.5454545454545
sv_effective_speed91.4090909090909
sv_launch_speed87.175
sv_launch_angle6.75
sv_woba_value0.0
sv_woba_denom3.0
sv_delta_run_exp-0.774
sv_delta_home_win_exp-0.032
sl_avg_best_speed77.88227
sl_avg_hyper_speed93.266505393
Brandon Eisert (685126) · PITCHER · Middle Reliever · Team CHW
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 12
All-history rows before 20260618: 12

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.4170.000-0.4170.000
predicted_ER0.0000.0000.000Pitching_ER0.4170.000-0.4170.000
predicted_H0.0000.0000.000Pitching_H0.9170.000-0.9170.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.9581.0000.0420.000
predicted_SO2.0002.0002.000Pitching_SO1.0832.0000.9170.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "685126",
  "player_name": "Brandon Eisert",
  "position": "Middle Reliever",
  "team": "CHW",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO2.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 12
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.2001.0002.0000.0006.0001.0001.58820.35290.17650.35290.00001.05880.1765
last_100.351010.1001.0005.0004.00011.0001.0000.87100.87100.09680.48390.38711.06450.0968
season0.201212.2005.00011.0005.00013.0001.0003.55261.26320.39470.86840.39471.02630.0790
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3130
predicted_ER0.3980
predicted_ERA3.5784
predicted_H0.8160
predicted_HR0.1400
predicted_IP1.0000
predicted_SO0.9770
predicted_WHIP1.1294
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.31300.1155model_form_blend
predicted_ER0.00000.39800.1468model_form_blend
predicted_ERA-3.57843.5784form_only
predicted_H0.00000.81600.3010model_form_blend
predicted_HR0.00000.14000.0516model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO2.00000.97701.6226model_form_blend
predicted_WHIP-1.12941.1294form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date12
Season rows before report date12
Report year2026
Profile rows used12
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB0
SO2
HR0
BF3
Pitches19

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA3.55
Pitching_Flyouts1
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches11
Pitching_R0
Pitching_SO2
Pitching_Strikes8
Pitching_Wild Pitch0
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260605_CHW@PHI
game_typefull
mlbID685126
playerID685126
playerNameBrandon Eisert
posP
startedFalse
startingPositionP
teamCHW
teamID6
game_date2026-06-05
sl_k_percent26.0
sl_bb_percent8.2
sl_woba0.348
sl_xwoba0.285
sl_sweet_spot_percent35.4
sl_barrel_batted_rate6.3
sl_hard_hit_percent41.7
sl_whiff_percent30.2
sl_swing_percent46.4
sl_avg_best_speed79.301134348
sl_avg_hyper_speed94.214774783
Grant Taylor (691799) · PITCHER · Middle Reliever · Team CHW
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 6
All-history rows before 20260618: 6

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.3330.000-0.3330.000
predicted_ER0.0000.0000.000Pitching_ER0.1670.000-0.1670.000
predicted_H1.0001.0001.000Pitching_H1.0002.0000.000-1.000
predicted_IP1.0001.0001.000Pitching_InningsPitched1.0171.100-0.017-0.100
predicted_SO0.0000.0000.000Pitching_SO1.3331.000-1.333-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "691799",
  "player_name": "Grant Taylor",
  "position": "Middle Reliever",
  "team": "CHW",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 6
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.1000.0004.0001.0007.0000.0000.00000.93750.00000.75000.18751.31250.0000
last_100.3566.1001.0006.0002.0008.0000.0001.42111.26320.15790.94740.31581.26320.0000
season0.2066.1001.0006.0002.0008.0000.0001.42111.26320.15790.94740.31581.26320.0000
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3310
predicted_ER0.4050
predicted_ERA3.6405
predicted_H0.9340
predicted_HR0.1170
predicted_IP1.0000
predicted_SO1.0120
predicted_WHIP1.2657
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.33100.1034model_form_blend
predicted_ER0.00000.40500.1265model_form_blend
predicted_ERA-3.64053.6405form_only
predicted_H1.00000.93400.9794model_form_blend
predicted_HR0.00000.11700.0366model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00001.01200.3162model_form_blend
predicted_WHIP-1.26571.2657form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date6
Season rows before report date6
Report year2026
Profile rows used6
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H1
R0
ER0
BB0
SO0
HR0
BF4
Pitches18

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced6
Pitching_ER0
Pitching_ERA1.42
Pitching_Flyouts1
Pitching_Groundouts1
Pitching_H2
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners2
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.1
Pitching_Pitches22
Pitching_R0
Pitching_SO1
Pitching_Strikes17
Pitching_Wild Pitch0
Pitching_decisionH
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260409_CHW@KC
game_typefull
mlbID691799
playerID691799
playerNameGrant Taylor
posP
startedFalse
startingPositionP
teamCHW
teamID6
game_date2026-04-09
game_pk824130.0
sl_k_percent35.1
sl_bb_percent6.1
sl_woba0.254
sl_xwoba0.231
sl_sweet_spot_percent31.0
sl_barrel_batted_rate7.0
sl_hard_hit_percent40.2
sl_whiff_percent29.3
sl_swing_percent50.3
sv_pitch_count22.0
sv_outs_recorded_est4.0
sv_release_speed94.2909090909091
sv_release_spin_rate2537.5454545454545
sv_effective_speed95.62272727272726
sv_launch_speed84.075
sv_launch_angle12.625
sv_woba_value1.8
sv_woba_denom6.0
sv_delta_run_exp-0.404
sv_delta_home_win_exp-0.161
sl_avg_best_speed79.384803488
sl_avg_hyper_speed93.863440581
Sean Newcomb (656794) · PITCHER · Middle Reliever · Team CHW
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 1
All-history rows before 20260618: 1

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB1.0001.0000.0000.000
predicted_ER2.0002.0002.000Pitching_ER2.0002.0000.0000.000
predicted_H4.0004.0004.000Pitching_H3.0003.0001.0001.000
predicted_IP1.0001.0001.000Pitching_InningsPitched2.1002.100-1.100-1.100
predicted_SO1.0001.0001.000Pitching_SO1.0001.0000.0000.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_IP: 0.1000 -> 1.0000 (boost 0.9000, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final11010predicted_IP: 0.1000 -> 1.0000 (boost 0.9000, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "656794",
  "player_name": "Sean Newcomb",
  "position": "Middle Reliever",
  "team": "CHW",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 2.0,
        "predicted_H": 4.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.1,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 2.0,
        "predicted_H": 4.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 2.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 0.1,
          "after": 1.0,
          "delta": 0.9,
          "percent_delta": 9.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_IP",
          "before": 0.1,
          "after": 1.0,
          "delta": 0.9,
          "percent_delta": 9.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 4.0,
        "after": 4.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 0.1,
        "after": 1.0,
        "delta": 0.9,
        "percent_delta": 9.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_IP",
        "before": 0.1,
        "after": 1.0,
        "delta": 0.9,
        "percent_delta": 9.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER2.000-
predicted_H4.000-
predicted_HR0.000-
predicted_IP0.100-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 1
Reference playing time: 0.100
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4512.1002.0003.0001.0001.0000.0007.71431.71430.85711.28570.42860.42860.0000
last_100.3512.1002.0003.0001.0001.0000.0007.71431.71430.85711.28570.42860.42860.0000
season0.2012.1002.0003.0001.0001.0000.0007.71431.71430.85711.28570.42860.42860.0000
Weighted Prediction From Real Data
MetricValue
predicted_BB0.1850
predicted_ER0.2670
predicted_ERA4.7801
predicted_H0.5030
predicted_HR0.0670
predicted_IP0.2000
predicted_SO0.4500
predicted_WHIP1.3692
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00000.18500.7854model_form_blend
predicted_ER2.00000.26701.5437model_form_blend
predicted_ERA-4.78014.7801form_only
predicted_H4.00000.50303.0791model_form_blend
predicted_HR0.00000.06700.0176model_form_blend
predicted_IP0.10000.20000.1000model_form_blend
predicted_SO1.00000.45000.8552model_form_blend
predicted_WHIP-1.36921.3692form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date1
Season rows before report date1
Report year2026
Profile rows used1
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H4
R2
ER2
BB1
SO1
HR0
BF8
Pitches24

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced10
Pitching_ER2
Pitching_ERA7.71
Pitching_Flyouts0
Pitching_Groundouts5
Pitching_H3
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners1
Pitching_Inherited Runners Scored0
Pitching_InningsPitched2.1
Pitching_Pitches33
Pitching_R2
Pitching_SO1
Pitching_Strikes26
Pitching_Wild Pitch0
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260326_CHW@MIL
game_typefull
mlbID656794
playerID656794
playerNameSean Newcomb
posP
startedFalse
startingPositionP
teamCHW
teamID6
game_date2026-03-26
game_pk823812.0
sl_k_percent23.5
sl_bb_percent6.5
sl_woba0.274
sl_xwoba0.3
sl_sweet_spot_percent33.3
sl_barrel_batted_rate4.4
sl_hard_hit_percent35.1
sl_whiff_percent24.9
sl_swing_percent46.6
sv_pitch_count37.0
sv_outs_recorded_est6.0
sv_release_speed90.8030303030303
sv_release_spin_rate2396.818181818182
sv_effective_speed89.39393939393939
sv_launch_speed79.68571428571428
sv_launch_angle4.428571428571429
sv_woba_value3.3
sv_woba_denom8.0
sv_delta_run_exp0.0589999999999999
sv_delta_home_win_exp0.0319999999999999
sl_avg_best_speed74.39050875
sl_avg_hyper_speed93.336573482
Seranthony Domínguez (622554) · PITCHER · Middle Reliever · Team CHW
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 2
All-history rows before 20260618: 2

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.5001.000-0.500-1.000
predicted_ER1.0001.0001.000Pitching_ER1.0002.0000.000-1.000
predicted_H2.0002.0002.000Pitching_H1.5002.0000.5000.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.5500.1000.4500.900
predicted_SO1.0001.0001.000Pitching_SO0.0000.0001.0001.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_IP: 0.1000 -> 1.0000 (boost 0.9000, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final11010predicted_IP: 0.1000 -> 1.0000 (boost 0.9000, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "622554",
  "player_name": "Seranthony Domínguez",
  "position": "Middle Reliever",
  "team": "CHW",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 1.0,
        "predicted_H": 2.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.1,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 1.0,
        "predicted_H": 2.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 0.1,
          "after": 1.0,
          "delta": 0.9,
          "percent_delta": 9.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_IP",
          "before": 0.1,
          "after": 1.0,
          "delta": 0.9,
          "percent_delta": 9.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 0.1,
        "after": 1.0,
        "delta": 0.9,
        "percent_delta": 9.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_IP",
        "before": 0.1,
        "after": 1.0,
        "delta": 0.9,
        "percent_delta": 9.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER1.000-
predicted_H2.000-
predicted_HR0.000-
predicted_IP0.100-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 2
Reference playing time: 0.100
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4521.1002.0003.0001.0000.0001.00013.50003.00001.50002.25000.75000.00000.7500
last_100.3521.1002.0003.0001.0000.0001.00013.50003.00001.50002.25000.75000.00000.7500
season0.2021.1002.0003.0001.0000.0001.00013.50003.00001.50002.25000.75000.00000.7500
Weighted Prediction From Real Data
MetricValue
predicted_BB0.1340
predicted_ER0.1930
predicted_ERA4.9605
predicted_H0.3630
predicted_HR0.0620
predicted_IP0.1000
predicted_SO0.3120
predicted_WHIP1.4208
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.13400.0333model_form_blend
predicted_ER1.00000.19300.7993model_form_blend
predicted_ERA-4.96054.9605form_only
predicted_H2.00000.36301.5928model_form_blend
predicted_HR0.00000.06200.0154model_form_blend
predicted_IP0.10000.10000.1000model_form_blend
predicted_SO1.00000.31200.8289model_form_blend
predicted_WHIP-1.42081.4208form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date2
Season rows before report date2
Report year2026
Profile rows used2
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H2
R1
ER1
BB0
SO1
HR0
BF5
Pitches19

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER2
Pitching_ERA13.50
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H2
Pitching_HBP0
Pitching_HR1
Pitching_Inherited Runners3
Pitching_Inherited Runners Scored3
Pitching_InningsPitched0.1
Pitching_Pitches19
Pitching_R2
Pitching_SO0
Pitching_Strikes10
Pitching_Wild Pitch0
Pitching_decisionL, BS
Pitching_pitchingOrder5
allPositionsPlayedP
gameID20260329_CHW@MIL
game_typefull
mlbID622554
playerID622554
playerNameSeranthony Domínguez
posP
startedFalse
startingPositionP
teamCHW
teamID6
game_date2026-03-29
game_pk823810.0
sl_k_percent27.9
sl_bb_percent13.5
sl_woba0.295
sl_xwoba0.35
sl_sweet_spot_percent38.1
sl_barrel_batted_rate9.7
sl_hard_hit_percent38.1
sl_whiff_percent28.2
sl_swing_percent42.1
sv_pitch_count19.0
sv_outs_recorded_est1.0
sv_release_speed92.93157894736842
sv_release_spin_rate2148.157894736842
sv_effective_speed92.93157894736842
sv_launch_speed82.55
sv_launch_angle24.166666666666668
sv_woba_value3.6
sv_woba_denom4.0
sv_delta_run_exp2.256
sv_delta_home_win_exp0.681
sl_avg_best_speed80.627565161
sl_avg_hyper_speed94.457767419

Home Team: NYY

Home Pitcher Deep Analysis

FieldValue
PitcherRyan Weathers
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score-0.0733
ESPN Rank141
Movement AvailableTrue
Primary Pitch-
Movement Score-0.0217
Avg Velo89.3421
Avg Spin2304.6615
HB Inches0
IVB Inches0
Release Extension0
Pre IP5.2000
Pre ER4
Pre H6
Pre BB2
Pre SO4
Season ERA4.3587
Season WHIP1.1704
Role Avg IP5.7180
Recent Avg IP5.8670
Last Start IP4.1000
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "NYY",
    "games": 82,
    "wins": 50,
    "losses": 32,
    "win_pct": 0.6098,
    "runs_scored": 410.0,
    "runs_allowed": 297.0,
    "run_differential": 113.0,
    "run_differential_per_game": 1.378,
    "avg_runs_scored": 5.0,
    "avg_runs_allowed": 3.622,
    "offense_index": 1.1096,
    "defense_index": 1.2441,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 8,
      "losses": 2,
      "win_pct": 0.8,
      "avg_runs_scored": 6.2,
      "avg_runs_allowed": 3.1,
      "run_differential": 31.0
    },
    "available": true,
    "quality_score": 0.3665
  },
  "opponent": {
    "team": "CHW",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 371.0,
    "runs_allowed": 387.0,
    "run_differential": -16.0,
    "run_differential_per_game": -0.2,
    "avg_runs_scored": 4.6375,
    "avg_runs_allowed": 4.8375,
    "offense_index": 1.0291,
    "defense_index": 0.9315,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.1,
      "avg_runs_allowed": 5.3,
      "run_differential": -12.0
    },
    "available": true,
    "quality_score": -0.035
  },
  "edges": {
    "quality_edge": 0.4015,
    "offense_edge": 0.1096,
    "opponent_offense_edge": 0.0291,
    "defense_strength": 0.2441,
    "opponent_defense_weakness": 0.0685,
    "recent_win_pct_edge": 0.3
  },
  "player_factors": {
    "ip": 1.0222,
    "run_prevention": 0.9602,
    "strikeout": 1.0097
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "677960",
    "profile": {
      "available": true,
      "pitcher_id": "677960",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 228.0,
        "k_percent": 26.6,
        "bb_percent": 6.9,
        "woba": 0.312,
        "xwoba": 0.323,
        "sweet_spot_percent": 30.2,
        "barrel_batted_rate": 12.0,
        "hard_hit_percent": 41.6,
        "avg_best_speed": 77.3552,
        "avg_hyper_speed": 94.9106,
        "whiff_percent": 26.5,
        "swing_percent": 44.1
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.2786,
        "command_and_miss": 0.4186,
        "regression_edge": -0.3143,
        "xwoba_edge": -0.2286,
        "barrel_edge": -1.0444,
        "hard_hit_edge": -0.4714,
        "whiff_edge": 0.1143,
        "bb_edge": 0.575,
        "pitch_design_score": -0.0217
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "677960",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 95,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 95,
          "pitch_usage": 0.0,
          "release_speed": 89.34212627065457,
          "release_spin_rate": 2304.6615057998483,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 95,
            "pitch_usage": 0.0,
            "release_speed": 89.34212627065457,
            "release_spin_rate": 2304.6615057998483,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 89.3421,
          "release_spin_rate": 2304.6615,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.0217,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -0.1547,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": -0.0733,
      "sample_weight": 0.912,
      "run_prevention_factor": 1.0062,
      "strikeout_factor": 1.0255,
      "walk_factor": 0.958,
      "homer_factor": 1.0997,
      "woba_minus_xwoba": -0.011,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "677960",
        "espn_id": 41178,
        "player_name": "Ryan Weathers",
        "team": "NYY",
        "role": "pitcher",
        "espn_rank": 141,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 141,
          "gp_value": 13.0,
          "gp_rank": 329,
          "gs_value": 13.0,
          "gs_rank": 69,
          "qs_value": 4.0,
          "qs_rank": 73,
          "era_value": 4.3587,
          "era_rank": 55.0,
          "w_value": 2.0,
          "w_rank": 180,
          "l_value": 5.0,
          "l_rank": 36,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 74.1,
          "ip_rank": 59,
          "h_value": 66.0,
          "h_rank": 74,
          "er_value": 36.0,
          "er_rank": 46,
          "hr_value": 15.0,
          "hr_rank": 10,
          "bb_value": 21.0,
          "bb_rank": 109,
          "k_value": 81.0,
          "k_rank": 27,
          "k_per_9_value": 9.807175,
          "k_per_9_rank": 12,
          "whip_value": 1.1704,
          "whip_rank": 32.0,
          "war_value": 0.73,
          "war_rank": 1.0
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 4.0,
        "factor": 1.0057,
        "adjusted": 4
      },
      "predicted_H": {
        "original": 5.0,
        "factor": 1.0057,
        "adjusted": 5
      },
      "predicted_BB": {
        "original": 2.0,
        "factor": 0.9617,
        "adjusted": 2
      },
      "predicted_HR": {
        "original": 2.0,
        "factor": 1.0909,
        "adjusted": 2
      },
      "predicted_SO": {
        "original": 6.0,
        "factor": 1.0233,
        "adjusted": 6
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 58.1,
    "ER": 31,
    "H": 49,
    "BB": 16,
    "SO": 63,
    "HR": 15,
    "ERA": 4.782857142857143,
    "WHIP": 1.1142857142857143,
    "K9": 9.719999999999999,
    "HR9": 2.314285714285714,
    "games_pitched": 10,
    "quality_starts": 3,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-12T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "677960",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 95,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 95,
    "pitch_usage": 0.0,
    "release_speed": 89.34212627065457,
    "release_spin_rate": 2304.6615057998483,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 95,
      "pitch_usage": 0.0,
      "release_speed": 89.34212627065457,
      "release_spin_rate": 2304.6615057998483,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 89.3421,
    "release_spin_rate": 2304.6615,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.0217,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -0.1547,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 13.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7222,
    "prior_weight": 0.2778
  },
  "role": "pitcher",
  "player_id": "677960",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 13,
  "reference_playing_time": 5.667,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 29.1,
        "ER": 21.0,
        "R": 21.0,
        "H": 29.0,
        "BB": 8.0,
        "SO": 27.0,
        "HR": 9.0,
        "BF": 124.0,
        "Pitches": 467.0
      },
      "per_game": {
        "IP": 6.0,
        "ER": 4.2,
        "R": 4.2,
        "H": 5.8,
        "BB": 1.6,
        "SO": 5.4,
        "HR": 1.8,
        "BF": 24.8,
        "Pitches": 93.4
      },
      "rates": {
        "ERA": 6.4432,
        "WHIP": 1.2614,
        "ER_per_IP": 0.71591,
        "H_per_IP": 0.98864,
        "BB_per_IP": 0.27273,
        "SO_per_IP": 0.92045,
        "HR_per_IP": 0.30682
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 58.1,
        "ER": 31.0,
        "R": 33.0,
        "H": 49.0,
        "BB": 16.0,
        "SO": 63.0,
        "HR": 15.0,
        "BF": 237.0,
        "Pitches": 933.0
      },
      "per_game": {
        "IP": 6.0,
        "ER": 3.1,
        "R": 3.3,
        "H": 4.9,
        "BB": 1.6,
        "SO": 6.3,
        "HR": 1.5,
        "BF": 23.7,
        "Pitches": 93.3
      },
      "rates": {
        "ERA": 4.7829,
        "WHIP": 1.1143,
        "ER_per_IP": 0.53143,
        "H_per_IP": 0.84,
        "BB_per_IP": 0.27429,
        "SO_per_IP": 1.08,
        "HR_per_IP": 0.25714
      }
    },
    "season": {
      "games": 13,
      "totals": {
        "IP": 74.1,
        "ER": 36.0,
        "R": 38.0,
        "H": 66.0,
        "BB": 21.0,
        "SO": 81.0,
        "HR": 15.0,
        "BF": 305.0,
        "Pitches": 1199.0
      },
      "per_game": {
        "IP": 5.2,
        "ER": 2.7692,
        "R": 2.9231,
        "H": 5.0769,
        "BB": 1.6154,
        "SO": 6.2308,
        "HR": 1.1538,
        "BF": 23.4615,
        "Pitches": 92.2308
      },
      "rates": {
        "ERA": 4.3587,
        "WHIP": 1.1704,
        "ER_per_IP": 0.4843,
        "H_per_IP": 0.88789,
        "BB_per_IP": 0.28251,
        "SO_per_IP": 1.08969,
        "HR_per_IP": 0.20179
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 6.0,
    "predicted_ER": 3.376,
    "predicted_H": 5.463,
    "predicted_BB": 1.756,
    "predicted_SO": 5.801,
    "predicted_HR": 1.373,
    "predicted_ERA": 5.1849,
    "predicted_WHIP": 1.2321
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.4674,
  "form_weight": 0.5326,
  "form_reliability": 0.7222,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 13.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7222,
    "prior_weight": 0.2778
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 5.2,
      "form": 6.0,
      "final": 6.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 4.0,
      "form": 3.376,
      "final": 3.6676,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 6.0,
      "form": 5.463,
      "final": 5.714,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 2.0,
      "form": 1.756,
      "final": 1.87,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 4.0,
      "form": 5.801,
      "final": 4.9593,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 1.0,
      "form": 1.373,
      "final": 1.1987,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 5.1849,
      "final": 5.1849,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2321,
      "final": 1.2321,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherCamilo Doval
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.2494
ESPN Rank444
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H0
Pre BB0
Pre SO1
Season ERA5.0625
Season WHIP1.1625
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "NYY",
    "games": 82,
    "wins": 50,
    "losses": 32,
    "win_pct": 0.6098,
    "runs_scored": 410.0,
    "runs_allowed": 297.0,
    "run_differential": 113.0,
    "run_differential_per_game": 1.378,
    "avg_runs_scored": 5.0,
    "avg_runs_allowed": 3.622,
    "offense_index": 1.1096,
    "defense_index": 1.2441,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 8,
      "losses": 2,
      "win_pct": 0.8,
      "avg_runs_scored": 6.2,
      "avg_runs_allowed": 3.1,
      "run_differential": 31.0
    },
    "available": true,
    "quality_score": 0.3665
  },
  "opponent": {
    "team": "CHW",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 371.0,
    "runs_allowed": 387.0,
    "run_differential": -16.0,
    "run_differential_per_game": -0.2,
    "avg_runs_scored": 4.6375,
    "avg_runs_allowed": 4.8375,
    "offense_index": 1.0291,
    "defense_index": 0.9315,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.1,
      "avg_runs_allowed": 5.3,
      "run_differential": -12.0
    },
    "available": true,
    "quality_score": -0.035
  },
  "edges": {
    "quality_edge": 0.4015,
    "offense_edge": 0.1096,
    "opponent_offense_edge": 0.0291,
    "defense_strength": 0.2441,
    "opponent_defense_weakness": 0.0685,
    "recent_win_pct_edge": 0.3
  },
  "player_factors": {
    "ip": 1.0222,
    "run_prevention": 0.9602,
    "strikeout": 1.0097
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "666808",
    "profile": {
      "available": true,
      "pitcher_id": "666808",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 86.0,
        "k_percent": 22.5,
        "bb_percent": 4.5,
        "woba": 0.296,
        "xwoba": 0.263,
        "sweet_spot_percent": 21.0,
        "barrel_batted_rate": 3.7,
        "hard_hit_percent": 49.4,
        "avg_best_speed": 80.7159,
        "avg_hyper_speed": 94.9907,
        "whiff_percent": 26.9,
        "swing_percent": 50.2
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.6845,
        "command_and_miss": 0.295,
        "regression_edge": 0.9429,
        "xwoba_edge": 1.4857,
        "barrel_edge": 0.8,
        "hard_hit_edge": -1.5857,
        "whiff_edge": 0.1714,
        "bb_edge": 1.175,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "666808",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.2494,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9788,
      "strikeout_factor": 1.0031,
      "walk_factor": 0.9577,
      "homer_factor": 0.9797,
      "woba_minus_xwoba": 0.033,
      "regression_flag": "positive_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "666808",
        "espn_id": 41337,
        "player_name": "Camilo Doval",
        "team": "NYY",
        "role": "pitcher",
        "espn_rank": 444,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 444,
          "gp_value": 31.0,
          "gp_rank": 46,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 5.0625,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 0.0,
          "l_rank": 430,
          "sv_value": 1.0,
          "sv_rank": 86,
          "hld_value": 3.0,
          "hld_rank": 142,
          "ip_value": 26.2,
          "ip_rank": 306,
          "h_value": 26.0,
          "h_rank": 257,
          "er_value": 15.0,
          "er_rank": 209,
          "hr_value": 4.0,
          "hr_rank": 199,
          "bb_value": 5.0,
          "bb_rank": 474,
          "k_value": 25.0,
          "k_rank": 302,
          "k_per_9_value": 8.4375,
          "k_per_9_rank": 26,
          "whip_value": 1.1625,
          "whip_rank": null,
          "war_value": -0.05,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9905,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9905,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.981,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9909,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0014,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 8.1,
    "ER": 4,
    "H": 9,
    "BB": 1,
    "SO": 8,
    "HR": 1,
    "ERA": 4.32,
    "WHIP": 1.2000000000000002,
    "K9": 8.64,
    "HR9": 1.08,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-14T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "666808",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.296,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5144,
    "prior_weight": 0.4856
  },
  "role": "pitcher",
  "player_id": "666808",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 31,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.1,
        "ER": 0.0,
        "R": 0.0,
        "H": 4.0,
        "BB": 1.0,
        "SO": 6.0,
        "HR": 0.0,
        "BF": 17.0,
        "Pitches": 64.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.8,
        "BB": 0.2,
        "SO": 1.2,
        "HR": 0.0,
        "BF": 3.4,
        "Pitches": 12.8
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 1.1538,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.92308,
        "BB_per_IP": 0.23077,
        "SO_per_IP": 1.38462,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 8.1,
        "ER": 4.0,
        "R": 4.0,
        "H": 9.0,
        "BB": 1.0,
        "SO": 8.0,
        "HR": 1.0,
        "BF": 33.0,
        "Pitches": 123.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 0.4,
        "R": 0.4,
        "H": 0.9,
        "BB": 0.1,
        "SO": 0.8,
        "HR": 0.1,
        "BF": 3.3,
        "Pitches": 12.3
      },
      "rates": {
        "ERA": 4.32,
        "WHIP": 1.2,
        "ER_per_IP": 0.48,
        "H_per_IP": 1.08,
        "BB_per_IP": 0.12,
        "SO_per_IP": 0.96,
        "HR_per_IP": 0.12
      }
    },
    "season": {
      "games": 31,
      "totals": {
        "IP": 26.2,
        "ER": 15.0,
        "R": 15.0,
        "H": 26.0,
        "BB": 5.0,
        "SO": 25.0,
        "HR": 4.0,
        "BF": 111.0,
        "Pitches": 430.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4839,
        "R": 0.4839,
        "H": 0.8387,
        "BB": 0.1613,
        "SO": 0.8065,
        "HR": 0.129,
        "BF": 3.5806,
        "Pitches": 13.871
      },
      "rates": {
        "ERA": 5.0625,
        "WHIP": 1.1625,
        "ER_per_IP": 0.5625,
        "H_per_IP": 0.975,
        "BB_per_IP": 0.1875,
        "SO_per_IP": 0.9375,
        "HR_per_IP": 0.15
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.364,
    "predicted_H": 0.923,
    "predicted_BB": 0.254,
    "predicted_SO": 0.982,
    "predicted_HR": 0.101,
    "predicted_ERA": 3.4878,
    "predicted_WHIP": 1.2521
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5552,
  "form_weight": 0.4448,
  "form_reliability": 0.5144,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.296,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5144,
    "prior_weight": 0.4856
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.364,
      "final": 0.1619,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.923,
      "final": 0.4106,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.254,
      "final": 0.113,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 0.982,
      "final": 0.992,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.101,
      "final": 0.0449,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.4878,
      "final": 3.4878,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2521,
      "final": 1.2521,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherDavid Bednar
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.3348
ESPN Rank254
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1.1000
Pre ER0
Pre H1
Pre BB0
Pre SO0
Season ERA3.6404
Season WHIP1.3820
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "NYY",
    "games": 82,
    "wins": 50,
    "losses": 32,
    "win_pct": 0.6098,
    "runs_scored": 410.0,
    "runs_allowed": 297.0,
    "run_differential": 113.0,
    "run_differential_per_game": 1.378,
    "avg_runs_scored": 5.0,
    "avg_runs_allowed": 3.622,
    "offense_index": 1.1096,
    "defense_index": 1.2441,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 8,
      "losses": 2,
      "win_pct": 0.8,
      "avg_runs_scored": 6.2,
      "avg_runs_allowed": 3.1,
      "run_differential": 31.0
    },
    "available": true,
    "quality_score": 0.3665
  },
  "opponent": {
    "team": "CHW",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 371.0,
    "runs_allowed": 387.0,
    "run_differential": -16.0,
    "run_differential_per_game": -0.2,
    "avg_runs_scored": 4.6375,
    "avg_runs_allowed": 4.8375,
    "offense_index": 1.0291,
    "defense_index": 0.9315,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.1,
      "avg_runs_allowed": 5.3,
      "run_differential": -12.0
    },
    "available": true,
    "quality_score": -0.035
  },
  "edges": {
    "quality_edge": 0.4015,
    "offense_edge": 0.1096,
    "opponent_offense_edge": 0.0291,
    "defense_strength": 0.2441,
    "opponent_defense_weakness": 0.0685,
    "recent_win_pct_edge": 0.3
  },
  "player_factors": {
    "ip": 1.0222,
    "run_prevention": 0.9602,
    "strikeout": 1.0097
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "670280",
    "profile": {
      "available": true,
      "pitcher_id": "670280",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 105.0,
        "k_percent": 27.5,
        "bb_percent": 9.2,
        "woba": 0.304,
        "xwoba": 0.266,
        "sweet_spot_percent": 23.2,
        "barrel_batted_rate": 3.7,
        "hard_hit_percent": 39.0,
        "avg_best_speed": 75.7932,
        "avg_hyper_speed": 93.4839,
        "whiff_percent": 29.8,
        "swing_percent": 52.1
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.8903,
        "command_and_miss": 0.5264,
        "regression_edge": 1.0857,
        "xwoba_edge": 1.4,
        "barrel_edge": 0.8,
        "hard_hit_edge": -0.1,
        "whiff_edge": 0.5857,
        "bb_edge": 0.0,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "670280",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.3348,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9715,
      "strikeout_factor": 1.0234,
      "walk_factor": 1.0,
      "homer_factor": 0.9541,
      "woba_minus_xwoba": 0.038,
      "regression_flag": "positive_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "670280",
        "espn_id": 38303,
        "player_name": "David Bednar",
        "team": "NYY",
        "role": "pitcher",
        "espn_rank": 254,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 254,
          "gp_value": 29.0,
          "gp_rank": 80,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 3.6404,
          "era_rank": null,
          "w_value": 2.0,
          "w_rank": 180,
          "l_value": 3.0,
          "l_rank": 110,
          "sv_value": 14.0,
          "sv_rank": 7,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 29.2,
          "ip_rank": 259,
          "h_value": 29.0,
          "h_rank": 219,
          "er_value": 12.0,
          "er_rank": 266,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 12.0,
          "bb_rank": 246,
          "k_value": 36.0,
          "k_rank": 191,
          "k_per_9_value": 10.921349,
          "k_per_9_rank": 19,
          "whip_value": 1.382,
          "whip_rank": null,
          "war_value": 0.26,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9872,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9872,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9793,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0105,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.2,
    "ER": 4,
    "H": 8,
    "BB": 6,
    "SO": 14,
    "HR": 1,
    "ERA": 3.3749999999999996,
    "WHIP": 1.3124999999999998,
    "K9": 11.812499999999998,
    "HR9": 0.8437499999999999,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-14T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "670280",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.891,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5409,
    "prior_weight": 0.4591
  },
  "role": "pitcher",
  "player_id": "670280",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 29,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.2,
        "ER": 0.0,
        "R": 0.0,
        "H": 2.0,
        "BB": 1.0,
        "SO": 7.0,
        "HR": 0.0,
        "BF": 20.0,
        "Pitches": 75.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.4,
        "BB": 0.2,
        "SO": 1.4,
        "HR": 0.0,
        "BF": 4.0,
        "Pitches": 15.0
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 0.5294,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.35294,
        "BB_per_IP": 0.17647,
        "SO_per_IP": 1.23529,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.2,
        "ER": 4.0,
        "R": 4.0,
        "H": 8.0,
        "BB": 6.0,
        "SO": 14.0,
        "HR": 1.0,
        "BF": 46.0,
        "Pitches": 187.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4,
        "R": 0.4,
        "H": 0.8,
        "BB": 0.6,
        "SO": 1.4,
        "HR": 0.1,
        "BF": 4.6,
        "Pitches": 18.7
      },
      "rates": {
        "ERA": 3.375,
        "WHIP": 1.3125,
        "ER_per_IP": 0.375,
        "H_per_IP": 0.75,
        "BB_per_IP": 0.5625,
        "SO_per_IP": 1.3125,
        "HR_per_IP": 0.09375
      }
    },
    "season": {
      "games": 29,
      "totals": {
        "IP": 29.2,
        "ER": 12.0,
        "R": 15.0,
        "H": 29.0,
        "BB": 12.0,
        "SO": 36.0,
        "HR": 2.0,
        "BF": 131.0,
        "Pitches": 541.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4138,
        "R": 0.5172,
        "H": 1.0,
        "BB": 0.4138,
        "SO": 1.2414,
        "HR": 0.069,
        "BF": 4.5172,
        "Pitches": 18.6552
      },
      "rates": {
        "ERA": 3.6404,
        "WHIP": 1.382,
        "ER_per_IP": 0.40449,
        "H_per_IP": 0.97753,
        "BB_per_IP": 0.40449,
        "SO_per_IP": 1.21348,
        "HR_per_IP": 0.06742
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.345,
    "predicted_H": 0.781,
    "predicted_BB": 0.36,
    "predicted_SO": 1.111,
    "predicted_HR": 0.092,
    "predicted_ERA": 3.1025,
    "predicted_WHIP": 1.1407
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.544,
  "form_weight": 0.456,
  "form_reliability": 0.5409,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.891,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5409,
    "prior_weight": 0.4591
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.345,
      "final": 0.1573,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.781,
      "final": 0.9001,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.36,
      "final": 0.1642,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 1.111,
      "final": 0.5066,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.092,
      "final": 0.042,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.1025,
      "final": 3.1025,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1407,
      "final": 1.1407,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherFernando Cruz
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.3886
ESPN Rank69
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H0
Pre BB0
Pre SO2
Season ERA2.0106
Season WHIP1.2447
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "NYY",
    "games": 82,
    "wins": 50,
    "losses": 32,
    "win_pct": 0.6098,
    "runs_scored": 410.0,
    "runs_allowed": 297.0,
    "run_differential": 113.0,
    "run_differential_per_game": 1.378,
    "avg_runs_scored": 5.0,
    "avg_runs_allowed": 3.622,
    "offense_index": 1.1096,
    "defense_index": 1.2441,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 8,
      "losses": 2,
      "win_pct": 0.8,
      "avg_runs_scored": 6.2,
      "avg_runs_allowed": 3.1,
      "run_differential": 31.0
    },
    "available": true,
    "quality_score": 0.3665
  },
  "opponent": {
    "team": "CHW",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 371.0,
    "runs_allowed": 387.0,
    "run_differential": -16.0,
    "run_differential_per_game": -0.2,
    "avg_runs_scored": 4.6375,
    "avg_runs_allowed": 4.8375,
    "offense_index": 1.0291,
    "defense_index": 0.9315,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.1,
      "avg_runs_allowed": 5.3,
      "run_differential": -12.0
    },
    "available": true,
    "quality_score": -0.035
  },
  "edges": {
    "quality_edge": 0.4015,
    "offense_edge": 0.1096,
    "opponent_offense_edge": 0.0291,
    "defense_strength": 0.2441,
    "opponent_defense_weakness": 0.0685,
    "recent_win_pct_edge": 0.3
  },
  "player_factors": {
    "ip": 1.0222,
    "run_prevention": 0.9602,
    "strikeout": 1.0097
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "518585",
    "profile": {
      "available": true,
      "pitcher_id": "518585",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 97.0,
        "k_percent": 30.5,
        "bb_percent": 14.5,
        "woba": 0.275,
        "xwoba": 0.275,
        "sweet_spot_percent": 30.0,
        "barrel_batted_rate": 5.7,
        "hard_hit_percent": 22.9,
        "avg_best_speed": 74.3158,
        "avg_hyper_speed": 92.3424,
        "whiff_percent": 41.6,
        "swing_percent": 42.7
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 1.0573,
        "command_and_miss": 1.0443,
        "regression_edge": 0.0,
        "xwoba_edge": 1.1429,
        "barrel_edge": 0.3556,
        "hard_hit_edge": 2.2,
        "whiff_edge": 2.2714,
        "bb_edge": -1.325,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "518585",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.3886,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.967,
      "strikeout_factor": 1.0615,
      "walk_factor": 1.0477,
      "homer_factor": 0.9322,
      "woba_minus_xwoba": 0.0,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "518585",
        "espn_id": 34068,
        "player_name": "Fernando Cruz",
        "team": "NYY",
        "role": "pitcher",
        "espn_rank": 69,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 69,
          "gp_value": 34.0,
          "gp_rank": 13,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.0106,
          "era_rank": null,
          "w_value": 4.0,
          "w_rank": 65,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 1.0,
          "sv_rank": 86,
          "hld_value": 11.0,
          "hld_rank": 12,
          "ip_value": 31.1,
          "ip_rank": 229,
          "h_value": 20.0,
          "h_rank": 330,
          "er_value": 7.0,
          "er_rank": 431,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 19.0,
          "bb_rank": 131,
          "k_value": 40.0,
          "k_rank": 160,
          "k_per_9_value": 11.489362,
          "k_per_9_rank": 18,
          "whip_value": 1.2446,
          "whip_rank": null,
          "war_value": 1.25,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9851,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9851,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0215,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9695,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0277,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.2,
    "ER": 2,
    "H": 6,
    "BB": 6,
    "SO": 10,
    "HR": 0,
    "ERA": 1.6874999999999998,
    "WHIP": 1.1249999999999998,
    "K9": 8.437499999999998,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "518585",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.222,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5545,
    "prior_weight": 0.4455
  },
  "role": "pitcher",
  "player_id": "518585",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 34,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.1,
        "ER": 1.0,
        "R": 1.0,
        "H": 2.0,
        "BB": 5.0,
        "SO": 7.0,
        "HR": 0.0,
        "BF": 23.0,
        "Pitches": 92.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.4,
        "BB": 1.0,
        "SO": 1.4,
        "HR": 0.0,
        "BF": 4.6,
        "Pitches": 18.4
      },
      "rates": {
        "ERA": 1.6875,
        "WHIP": 1.3125,
        "ER_per_IP": 0.1875,
        "H_per_IP": 0.375,
        "BB_per_IP": 0.9375,
        "SO_per_IP": 1.3125,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.2,
        "ER": 2.0,
        "R": 2.0,
        "H": 6.0,
        "BB": 6.0,
        "SO": 10.0,
        "HR": 0.0,
        "BF": 42.0,
        "Pitches": 159.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.6,
        "BB": 0.6,
        "SO": 1.0,
        "HR": 0.0,
        "BF": 4.2,
        "Pitches": 15.9
      },
      "rates": {
        "ERA": 1.6875,
        "WHIP": 1.125,
        "ER_per_IP": 0.1875,
        "H_per_IP": 0.5625,
        "BB_per_IP": 0.5625,
        "SO_per_IP": 0.9375,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 34,
      "totals": {
        "IP": 31.1,
        "ER": 7.0,
        "R": 8.0,
        "H": 20.0,
        "BB": 19.0,
        "SO": 40.0,
        "HR": 2.0,
        "BF": 131.0,
        "Pitches": 518.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2059,
        "R": 0.2353,
        "H": 0.5882,
        "BB": 0.5588,
        "SO": 1.1765,
        "HR": 0.0588,
        "BF": 3.8529,
        "Pitches": 15.2353
      },
      "rates": {
        "ERA": 2.0106,
        "WHIP": 1.2447,
        "ER_per_IP": 0.2234,
        "H_per_IP": 0.6383,
        "BB_per_IP": 0.60638,
        "SO_per_IP": 1.2766,
        "HR_per_IP": 0.06383
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.331,
    "predicted_H": 0.707,
    "predicted_BB": 0.572,
    "predicted_SO": 1.069,
    "predicted_HR": 0.072,
    "predicted_ERA": 2.98,
    "predicted_WHIP": 1.2796
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5382,
  "form_weight": 0.4618,
  "form_reliability": 0.5545,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.222,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5545,
    "prior_weight": 0.4455
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.331,
      "final": 0.1528,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.707,
      "final": 0.3265,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.572,
      "final": 0.2641,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 2.0,
      "form": 1.069,
      "final": 1.5701,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.072,
      "final": 0.0332,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 2.98,
      "final": 2.98,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2796,
      "final": 1.2796,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Cody Bellinger (641355) · BATTER · LF · Team NYY
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 251
All-history rows before 20260618: 251
System season_avg: 0.2800
Data season_avg (2026 season-to-date): 0.2753
Diff (system - data): 0.0047
System opponent_avg: 0.7500

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2110.0000.000Hitting_2B0.2271.000-0.227-1.000
predicted_3B0.0420.0000.000Hitting_3B0.0560.000-0.0560.000
predicted_AB3.9604.0004.000Hitting_AB3.6614.0000.3390.000
predicted_AVG0.2600.0000.250Hitting_AVG0.2750.750-0.275-0.750
predicted_BB0.5921.0001.000Hitting_BB0.6451.0000.3550.000
predicted_CS-0.0000.000BaseRunning_CS0.0520.000-0.0520.000
predicted_H1.0300.0001.000Hitting_H1.0083.000-1.008-3.000
predicted_HR0.1800.0000.000Hitting_HR0.1551.000-0.155-1.000
predicted_OBP0.3550.2000.400Hitting_OBP0.3780.800-0.178-0.600
predicted_R0.6340.0001.000Hitting_R0.6452.000-0.645-2.000
predicted_RBI0.7000.0001.000Hitting_RBI0.6852.000-0.685-2.000
predicted_SLG0.4800.0000.250Hitting_SLG0.4951.750-0.495-1.750
predicted_SO0.5352.0001.000Hitting_SO0.5501.0001.4501.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics5
Deboosted Metrics5
Better Metrics4
Worse Metrics6
Biggest Boostpredicted_SO: 0.5350 -> 2.0000 (boost 1.4650, worse)
Biggest Deboostpredicted_H: 1.0300 -> 0.0000 (deboost -1.0300, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend54141predicted_H: 1.0300 -> 1.0885 (boost 0.0585, better)predicted_BB: 0.5920 -> 0.5411 (deboost -0.0509, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot44040predicted_RBI: 0.7407 -> 0.7947 (boost 0.0540, better)-Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling74334predicted_SO: 0.5275 -> 1.0000 (boost 0.4725, worse)predicted_2B: 0.2093 -> 0.0000 (deboost -0.2093, worse)AB rounded to 4 (raw=3.96), rates preserved: AVG=0.286 HR/AB=0.052
5consistency_constraints11010predicted_R: 0.7308 -> 1.0000 (boost 0.2692, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_OBP: 0.3754 -> 0.4000 (boost 0.0246, better)predicted_SLG: 0.5146 -> 0.2500 (deboost -0.2646, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference41304predicted_SO: 1.0000 -> 2.0000 (boost 1.0000, worse)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.2500 -> 0.5146 (boost 0.2646, better)predicted_OBP: 0.4000 -> 0.3754 (deboost -0.0246, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "641355",
  "player_name": "Cody Bellinger",
  "position": "LF",
  "team": "NYY",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.211,
        "predicted_3B": 0.042,
        "predicted_AB": 3.96,
        "predicted_AVG": 0.26,
        "predicted_BB": 0.592,
        "predicted_H": 1.03,
        "predicted_HR": 0.18,
        "predicted_OBP": 0.355,
        "predicted_R": 0.634,
        "predicted_RBI": 0.7,
        "predicted_SLG": 0.48,
        "predicted_SO": 0.535
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2093,
        "predicted_3B": 0.0352,
        "predicted_AB": 3.9354,
        "predicted_AVG": 0.2766,
        "predicted_BB": 0.5411,
        "predicted_H": 1.0885,
        "predicted_HBP": 0.003,
        "predicted_HR": 0.1961,
        "predicted_OBP": 0.3623,
        "predicted_R": 0.6811,
        "predicted_RBI": 0.7407,
        "predicted_SLG": 0.5026,
        "predicted_SO": 0.5363
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.211,
          "after": 0.2093,
          "delta": -0.0017,
          "percent_delta": -0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.042,
          "after": 0.0352,
          "delta": -0.0068,
          "percent_delta": -0.1619,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.96,
          "after": 3.9354,
          "delta": -0.0246,
          "percent_delta": -0.0062,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.26,
          "after": 0.2766,
          "delta": 0.0166,
          "percent_delta": 0.0638,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.592,
          "after": 0.5411,
          "delta": -0.0509,
          "percent_delta": -0.086,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.03,
          "after": 1.0885,
          "delta": 0.0585,
          "percent_delta": 0.0568,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.18,
          "after": 0.1961,
          "delta": 0.0161,
          "percent_delta": 0.0894,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.355,
          "after": 0.3623,
          "delta": 0.0073,
          "percent_delta": 0.0206,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.634,
          "after": 0.6811,
          "delta": 0.0471,
          "percent_delta": 0.0743,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.7,
          "after": 0.7407,
          "delta": 0.0407,
          "percent_delta": 0.0581,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.48,
          "after": 0.5026,
          "delta": 0.0226,
          "percent_delta": 0.0471,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.535,
          "after": 0.5363,
          "delta": 0.0013,
          "percent_delta": 0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 4,
        "deboosted_metrics": 1,
        "better_metrics": 4,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 1.03,
          "after": 1.0885,
          "delta": 0.0585,
          "percent_delta": 0.0568,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.592,
          "after": 0.5411,
          "delta": -0.0509,
          "percent_delta": -0.086,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 71
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2093,
        "predicted_3B": 0.0352,
        "predicted_AB": 3.9354,
        "predicted_AVG": 0.2881,
        "predicted_BB": 0.55,
        "predicted_H": 1.1337,
        "predicted_HBP": 0.003,
        "predicted_HR": 0.204,
        "predicted_OBP": 0.3754,
        "predicted_R": 0.7308,
        "predicted_RBI": 0.7947,
        "predicted_SLG": 0.5146,
        "predicted_SO": 0.5275
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2093,
          "after": 0.2093,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0352,
          "after": 0.0352,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9354,
          "after": 3.9354,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2766,
          "after": 0.2881,
          "delta": 0.0115,
          "percent_delta": 0.0416,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.5411,
          "after": 0.55,
          "delta": 0.0089,
          "percent_delta": 0.0164,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0885,
          "after": 1.1337,
          "delta": 0.0452,
          "percent_delta": 0.0415,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.003,
          "after": 0.003,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1961,
          "after": 0.204,
          "delta": 0.0079,
          "percent_delta": 0.0403,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3623,
          "after": 0.3754,
          "delta": 0.0131,
          "percent_delta": 0.0362,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.6811,
          "after": 0.7308,
          "delta": 0.0497,
          "percent_delta": 0.073,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.7407,
          "after": 0.7947,
          "delta": 0.054,
          "percent_delta": 0.0729,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5026,
          "after": 0.5146,
          "delta": 0.012,
          "percent_delta": 0.0239,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5363,
          "after": 0.5275,
          "delta": -0.0088,
          "percent_delta": -0.0164,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 4,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.7407,
          "after": 0.7947,
          "delta": 0.054,
          "percent_delta": 0.0729,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.96), rates preserved: AVG=0.286 HR/AB=0.052",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2093,
          "after": 0.0,
          "delta": -0.2093,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0352,
          "after": 0.0,
          "delta": -0.0352,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9354,
          "after": 4.0,
          "delta": 0.0646,
          "percent_delta": 0.0164,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.55,
          "after": 1.0,
          "delta": 0.45,
          "percent_delta": 0.8182,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.1337,
          "after": 1.0,
          "delta": -0.1337,
          "percent_delta": -0.1179,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.003,
          "after": 0.0,
          "delta": -0.003,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.204,
          "after": 0.0,
          "delta": -0.204,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.7947,
          "after": 1.0,
          "delta": 0.2053,
          "percent_delta": 0.2583,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5275,
          "after": 1.0,
          "delta": 0.4725,
          "percent_delta": 0.8957,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 4,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.5275,
          "after": 1.0,
          "delta": 0.4725,
          "percent_delta": 0.8957,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_2B",
          "before": 0.2093,
          "after": 0.0,
          "delta": -0.2093,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.7308,
          "after": 1.0,
          "delta": 0.2692,
          "percent_delta": 0.3684,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.7308,
          "after": 1.0,
          "delta": 0.2692,
          "percent_delta": 0.3684,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.4,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2881,
          "after": 0.25,
          "delta": -0.0381,
          "percent_delta": -0.1322,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3754,
          "after": 0.4,
          "delta": 0.0246,
          "percent_delta": 0.0655,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5146,
          "after": 0.25,
          "delta": -0.2646,
          "percent_delta": -0.5142,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3754,
          "after": 0.4,
          "delta": 0.0246,
          "percent_delta": 0.0655,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.5146,
          "after": 0.25,
          "delta": -0.2646,
          "percent_delta": -0.5142,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 1,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2881,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_LF": 0.0,
        "predicted_OBP": 0.3754,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.5146,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2881,
          "delta": 0.0381,
          "percent_delta": 0.1523,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3754,
          "delta": -0.0246,
          "percent_delta": -0.0616,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.5146,
          "delta": 0.2646,
          "percent_delta": 1.0585,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.5146,
          "delta": 0.2646,
          "percent_delta": 1.0585,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3754,
          "delta": -0.0246,
          "percent_delta": -0.0616,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.211,
        "after": 0.0,
        "delta": -0.211,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.042,
        "after": 0.0,
        "delta": -0.042,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.96,
        "after": 4.0,
        "delta": 0.04,
        "percent_delta": 0.0101,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AVG",
        "before": 0.26,
        "after": 0.2881,
        "delta": 0.0281,
        "percent_delta": 0.1081,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.592,
        "after": 1.0,
        "delta": 0.408,
        "percent_delta": 0.6892,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.03,
        "after": 0.0,
        "delta": -1.03,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.18,
        "after": 0.0,
        "delta": -0.18,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.355,
        "after": 0.3754,
        "delta": 0.0204,
        "percent_delta": 0.0575,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.634,
        "after": 0.0,
        "delta": -0.634,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.7,
        "after": 0.0,
        "delta": -0.7,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.48,
        "after": 0.5146,
        "delta": 0.0346,
        "percent_delta": 0.0721,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.535,
        "after": 2.0,
        "delta": 1.465,
        "percent_delta": 2.7383,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 5,
      "deboosted_metrics": 5,
      "better_metrics": 4,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.535,
        "after": 2.0,
        "delta": 1.465,
        "percent_delta": 2.7383,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 1.03,
        "after": 0.0,
        "delta": -1.03,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.211-
predicted_3B0.042-
predicted_AB3.960-
predicted_AVG0.260-
predicted_BB0.592-
predicted_H1.030-
predicted_HR0.180-
predicted_OBP0.355-
predicted_R0.634-
predicted_RBI0.700-
predicted_SLG0.480-
predicted_SO0.535-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.209-0.002
predicted_3B0.035-0.007
predicted_AB3.935-0.025
predicted_AVG0.2770.017
predicted_BB0.541-0.051
predicted_H1.0890.058
predicted_HBP0.003-
predicted_HR0.1960.016
predicted_OBP0.3620.007
predicted_R0.6810.047
predicted_RBI0.7410.041
predicted_SLG0.5030.023
predicted_SO0.5360.001
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2090.000
predicted_3B0.0350.000
predicted_AB3.9350.000
predicted_AVG0.2880.012
predicted_BB0.5500.009
predicted_H1.1340.045
predicted_HBP0.0030.000
predicted_HR0.2040.008
predicted_OBP0.3750.013
predicted_R0.7310.050
predicted_RBI0.7950.054
predicted_SLG0.5150.012
predicted_SO0.527-0.009
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.96), rates preserved: AVG=0.286 HR/AB=0.052

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.209
predicted_3B0.000-0.035
predicted_AB4.0000.065
predicted_AVG0.250-0.038
predicted_BB1.0000.450
predicted_H1.000-0.134
predicted_HR0.000-0.204
predicted_OBP0.4000.025
predicted_R1.0000.269
predicted_RBI1.0000.205
predicted_SLG0.250-0.265
predicted_SO1.0000.473
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 71
Reference playing time: 3.960
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-22.0008.0001.0000.0002.0006.0006.0001.0002.0000.36360.39130.68180.36360.09090.27270.04540.0909
last_100.2010-41.00013.0002.0000.0003.0009.0008.0004.0005.0000.31710.37780.58540.31710.07320.21950.09760.1220
season0.6071-261.00073.00015.0003.00011.00049.00045.00042.00038.0000.27970.37340.48660.27970.04210.18770.16090.1456
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2070
predicted_3B0.0260
predicted_AB3.9020
predicted_AVG0.2992
predicted_BB0.4720
predicted_H1.1680
predicted_HBP0.0030
predicted_HR0.2180
predicted_OBP0.3721
predicted_R0.7450
predicted_RBI0.7960
predicted_SLG0.5334
predicted_SO0.5380
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.21100.20700.2093model_form_blend
predicted_3B0.04200.02600.0352model_form_blend
predicted_AB3.96003.90203.9354model_form_blend
predicted_AVG0.26000.29920.2766model_form_blend
predicted_BB0.59200.47200.5411model_form_blend
predicted_H1.03001.16801.0885model_form_blend
predicted_HBP-0.00300.0030form_only
predicted_HR0.18000.21800.1961model_form_blend
predicted_OBP0.35500.37210.3623model_form_blend
predicted_R0.63400.74500.6811model_form_blend
predicted_RBI0.70000.79600.7407model_form_blend
predicted_SLG0.48000.53340.5026model_form_blend
predicted_SO0.53500.53800.5363model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date251
Season rows before report date251
Report year2026
Profile rows used71
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO2
SF0
HBP0
season_avg0.28

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB4
Hitting_AVG0.75
Hitting_BB1
Hitting_GIDP0
Hitting_H3
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R2
Hitting_RBI2
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB7
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedCF
gameID20260617_CHW@NYY
game_typefull
mlbID641355
playerID641355
playerNameCody Bellinger
posLF
startedTrue
startingPositionCF
teamNYY
teamID19
game_date2026-06-17
sl_k_percent12.3
sl_bb_percent13.6
sl_woba0.374
sl_xwoba0.375
sl_xba0.293
sl_xslg0.461
sl_sweet_spot_percent40.8
sl_barrel_batted_rate8.0
sl_hard_hit_percent37.0
sl_exit_velocity_avg89.3
sl_launch_angle_avg19.1
sl_whiff_percent17.7
sl_swing_percent44.7
Ben Rice (700250) · BATTER · 1B · Team NYY
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 230
All-history rows before 20260618: 230
System season_avg: 0.2910
Data season_avg (2026 season-to-date): 0.2972
Diff (system - data): -0.0062
System opponent_avg: 0.2500

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2270.0000.000Hitting_2B0.2390.000-0.2390.000
predicted_3B0.0300.0000.000Hitting_3B0.0260.000-0.0260.000
predicted_AB4.1205.0004.000Hitting_AB3.7744.0001.2261.000
predicted_AVG0.2490.0000.250Hitting_AVG0.2970.250-0.297-0.250
predicted_BB0.5910.0001.000Hitting_BB0.6171.000-0.617-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H1.0300.0001.000Hitting_H1.1221.000-1.122-1.000
predicted_HR0.2600.0000.000Hitting_HR0.3170.000-0.3170.000
predicted_OBP0.3620.0000.400Hitting_OBP0.4000.400-0.400-0.400
predicted_R0.8030.0001.000Hitting_R0.8480.000-0.8480.000
predicted_RBI0.6500.0001.000Hitting_RBI0.7740.000-0.7740.000
predicted_SLG0.5030.0000.250Hitting_SLG0.6270.250-0.627-0.250
predicted_SO1.0151.0001.000Hitting_SO1.0171.000-0.0170.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics4
Deboosted Metrics6
Better Metrics4
Worse Metrics6
Biggest Boostpredicted_AB: 4.1200 -> 5.0000 (boost 0.8800, better)
Biggest Deboostpredicted_H: 1.0300 -> 0.0000 (deboost -1.0300, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend43131predicted_SLG: 0.5030 -> 0.5256 (boost 0.0226, better)predicted_AB: 4.1200 -> 4.0047 (deboost -0.1153, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot33030predicted_R: 0.7836 -> 0.8407 (boost 0.0571, better)-Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling52323predicted_BB: 0.6355 -> 1.0000 (boost 0.3645, better)predicted_HR: 0.2898 -> 0.0000 (deboost -0.2898, worse)AB rounded to 4 (raw=4.12), rates preserved: AVG=0.262 HR/AB=0.070
5consistency_constraints11010predicted_R: 0.8407 -> 1.0000 (boost 0.1593, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_OBP: 0.3699 -> 0.4000 (boost 0.0301, better)predicted_SLG: 0.5475 -> 0.2500 (deboost -0.2975, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference51414predicted_AB: 4.0000 -> 5.0000 (boost 1.0000, better)predicted_BB: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.2500 -> 0.5475 (boost 0.2975, better)predicted_OBP: 0.4000 -> 0.3699 (deboost -0.0301, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "700250",
  "player_name": "Ben Rice",
  "position": "1B",
  "team": "NYY",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.227,
        "predicted_3B": 0.03,
        "predicted_AB": 4.12,
        "predicted_AVG": 0.249,
        "predicted_BB": 0.591,
        "predicted_H": 1.03,
        "predicted_HR": 0.26,
        "predicted_OBP": 0.362,
        "predicted_R": 0.803,
        "predicted_RBI": 0.65,
        "predicted_SLG": 0.503,
        "predicted_SO": 1.015
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1924,
        "predicted_3B": 0.0249,
        "predicted_AB": 4.0047,
        "predicted_AVG": 0.259,
        "predicted_BB": 0.6252,
        "predicted_H": 1.038,
        "predicted_HBP": 0.02,
        "predicted_HR": 0.2786,
        "predicted_OBP": 0.3706,
        "predicted_R": 0.7836,
        "predicted_RBI": 0.6631,
        "predicted_SLG": 0.5256,
        "predicted_SO": 1.007
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.227,
          "after": 0.1924,
          "delta": -0.0346,
          "percent_delta": -0.1524,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.03,
          "after": 0.0249,
          "delta": -0.0051,
          "percent_delta": -0.17,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.12,
          "after": 4.0047,
          "delta": -0.1153,
          "percent_delta": -0.028,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.249,
          "after": 0.259,
          "delta": 0.01,
          "percent_delta": 0.0402,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.591,
          "after": 0.6252,
          "delta": 0.0342,
          "percent_delta": 0.0579,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.03,
          "after": 1.038,
          "delta": 0.008,
          "percent_delta": 0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.26,
          "after": 0.2786,
          "delta": 0.0186,
          "percent_delta": 0.0715,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.362,
          "after": 0.3706,
          "delta": 0.0086,
          "percent_delta": 0.0238,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.803,
          "after": 0.7836,
          "delta": -0.0194,
          "percent_delta": -0.0242,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.65,
          "after": 0.6631,
          "delta": 0.0131,
          "percent_delta": 0.0202,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.503,
          "after": 0.5256,
          "delta": 0.0226,
          "percent_delta": 0.0449,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.015,
          "after": 1.007,
          "delta": -0.008,
          "percent_delta": -0.0079,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.503,
          "after": 0.5256,
          "delta": 0.0226,
          "percent_delta": 0.0449,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.12,
          "after": 4.0047,
          "delta": -0.1153,
          "percent_delta": -0.028,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 66
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1924,
        "predicted_3B": 0.0249,
        "predicted_AB": 4.0047,
        "predicted_AVG": 0.27,
        "predicted_BB": 0.6355,
        "predicted_H": 1.0811,
        "predicted_HBP": 0.02,
        "predicted_HR": 0.2898,
        "predicted_OBP": 0.3699,
        "predicted_R": 0.8407,
        "predicted_RBI": 0.7114,
        "predicted_SLG": 0.5475,
        "predicted_SO": 0.9905
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1924,
          "after": 0.1924,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0249,
          "after": 0.0249,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0047,
          "after": 4.0047,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.259,
          "after": 0.27,
          "delta": 0.011,
          "percent_delta": 0.0425,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.6252,
          "after": 0.6355,
          "delta": 0.0103,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.038,
          "after": 1.0811,
          "delta": 0.0431,
          "percent_delta": 0.0415,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.02,
          "after": 0.02,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2786,
          "after": 0.2898,
          "delta": 0.0112,
          "percent_delta": 0.0402,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3706,
          "after": 0.3699,
          "delta": -0.0007,
          "percent_delta": -0.0019,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.7836,
          "after": 0.8407,
          "delta": 0.0571,
          "percent_delta": 0.0729,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6631,
          "after": 0.7114,
          "delta": 0.0483,
          "percent_delta": 0.0728,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5256,
          "after": 0.5475,
          "delta": 0.0219,
          "percent_delta": 0.0417,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.007,
          "after": 0.9905,
          "delta": -0.0165,
          "percent_delta": -0.0164,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.7836,
          "after": 0.8407,
          "delta": 0.0571,
          "percent_delta": 0.0729,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.12), rates preserved: AVG=0.262 HR/AB=0.070",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1924,
          "after": 0.0,
          "delta": -0.1924,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0249,
          "after": 0.0,
          "delta": -0.0249,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0047,
          "after": 4.0,
          "delta": -0.0047,
          "percent_delta": -0.0012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.6355,
          "after": 1.0,
          "delta": 0.3645,
          "percent_delta": 0.5736,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0811,
          "after": 1.0,
          "delta": -0.0811,
          "percent_delta": -0.075,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.02,
          "after": 0.0,
          "delta": -0.02,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2898,
          "after": 0.0,
          "delta": -0.2898,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.7114,
          "after": 1.0,
          "delta": 0.2886,
          "percent_delta": 0.4057,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9905,
          "after": 1.0,
          "delta": 0.0095,
          "percent_delta": 0.0096,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 2,
        "deboosted_metrics": 3,
        "better_metrics": 2,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.6355,
          "after": 1.0,
          "delta": 0.3645,
          "percent_delta": 0.5736,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_HR",
          "before": 0.2898,
          "after": 0.0,
          "delta": -0.2898,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.8407,
          "after": 1.0,
          "delta": 0.1593,
          "percent_delta": 0.1895,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.8407,
          "after": 1.0,
          "delta": 0.1593,
          "percent_delta": 0.1895,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.4,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.27,
          "after": 0.25,
          "delta": -0.02,
          "percent_delta": -0.0741,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3699,
          "after": 0.4,
          "delta": 0.0301,
          "percent_delta": 0.0814,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5475,
          "after": 0.25,
          "delta": -0.2975,
          "percent_delta": -0.5434,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3699,
          "after": 0.4,
          "delta": 0.0301,
          "percent_delta": 0.0814,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.5475,
          "after": 0.25,
          "delta": -0.2975,
          "percent_delta": -0.5434,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 5.0,
          "delta": 1.0,
          "percent_delta": 0.25,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 1,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 5.0,
          "delta": 1.0,
          "percent_delta": 0.25,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.27,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_FB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3699,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.5475,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.27,
          "delta": 0.02,
          "percent_delta": 0.0798,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3699,
          "delta": -0.0301,
          "percent_delta": -0.0752,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.5475,
          "delta": 0.2975,
          "percent_delta": 1.19,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.5475,
          "delta": 0.2975,
          "percent_delta": 1.19,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3699,
          "delta": -0.0301,
          "percent_delta": -0.0752,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.227,
        "after": 0.0,
        "delta": -0.227,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.03,
        "after": 0.0,
        "delta": -0.03,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.12,
        "after": 5.0,
        "delta": 0.88,
        "percent_delta": 0.2136,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.249,
        "after": 0.27,
        "delta": 0.021,
        "percent_delta": 0.0843,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.591,
        "after": 0.0,
        "delta": -0.591,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.03,
        "after": 0.0,
        "delta": -1.03,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.26,
        "after": 0.0,
        "delta": -0.26,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.362,
        "after": 0.3699,
        "delta": 0.0079,
        "percent_delta": 0.0218,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.803,
        "after": 0.0,
        "delta": -0.803,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.65,
        "after": 0.0,
        "delta": -0.65,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.503,
        "after": 0.5475,
        "delta": 0.0445,
        "percent_delta": 0.0885,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.015,
        "after": 1.0,
        "delta": -0.015,
        "percent_delta": -0.0148,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 4,
      "deboosted_metrics": 6,
      "better_metrics": 4,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 4.12,
        "after": 5.0,
        "delta": 0.88,
        "percent_delta": 0.2136,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 1.03,
        "after": 0.0,
        "delta": -1.03,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.227-
predicted_3B0.030-
predicted_AB4.120-
predicted_AVG0.249-
predicted_BB0.591-
predicted_H1.030-
predicted_HR0.260-
predicted_OBP0.362-
predicted_R0.803-
predicted_RBI0.650-
predicted_SLG0.503-
predicted_SO1.015-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.192-0.035
predicted_3B0.025-0.005
predicted_AB4.005-0.115
predicted_AVG0.2590.010
predicted_BB0.6250.034
predicted_H1.0380.008
predicted_HBP0.020-
predicted_HR0.2790.019
predicted_OBP0.3710.009
predicted_R0.784-0.019
predicted_RBI0.6630.013
predicted_SLG0.5260.023
predicted_SO1.007-0.008
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1920.000
predicted_3B0.0250.000
predicted_AB4.0050.000
predicted_AVG0.2700.011
predicted_BB0.6350.010
predicted_H1.0810.043
predicted_HBP0.0200.000
predicted_HR0.2900.011
predicted_OBP0.370-0.001
predicted_R0.8410.057
predicted_RBI0.7110.048
predicted_SLG0.5470.022
predicted_SO0.991-0.016
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.12), rates preserved: AVG=0.262 HR/AB=0.070

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.192
predicted_3B0.000-0.025
predicted_AB4.000-0.005
predicted_AVG0.250-0.020
predicted_BB1.0000.365
predicted_H1.000-0.081
predicted_HR0.000-0.290
predicted_OBP0.4000.030
predicted_R1.0000.159
predicted_RBI1.0000.289
predicted_SLG0.250-0.297
predicted_SO1.0000.009
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB5.0001.000
BB0.000-1.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 66
Reference playing time: 4.120
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.0005.0000.0000.0002.0004.0004.0005.0005.0000.25000.40000.55000.25000.10000.20000.25000.2500
last_100.2010-40.00010.0000.0000.0003.0005.0007.0008.00010.0000.25000.37500.47500.25000.07500.12500.20000.2500
season0.6066-247.00072.00015.0002.00020.00048.00053.00039.00067.0000.29150.39100.61130.29150.08100.19430.15790.2713
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1450
predicted_3B0.0180
predicted_AB3.8470
predicted_AVG0.2726
predicted_BB0.6720
predicted_H1.0490
predicted_HBP0.0200
predicted_HR0.3040
predicted_OBP0.3824
predicted_R0.7570
predicted_RBI0.6810
predicted_SLG0.5566
predicted_SO0.9960
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.22700.14500.1924model_form_blend
predicted_3B0.03000.01800.0249model_form_blend
predicted_AB4.12003.84704.0047model_form_blend
predicted_AVG0.24900.27260.2590model_form_blend
predicted_BB0.59100.67200.6252model_form_blend
predicted_H1.03001.04901.0380model_form_blend
predicted_HBP-0.02000.0200form_only
predicted_HR0.26000.30400.2786model_form_blend
predicted_OBP0.36200.38240.3706model_form_blend
predicted_R0.80300.75700.7836model_form_blend
predicted_RBI0.65000.68100.6631model_form_blend
predicted_SLG0.50300.55660.5256model_form_blend
predicted_SO1.01500.99601.0070model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date230
Season rows before report date230
Report year2026
Profile rows used66
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB5
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.291

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB1
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB1
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260617_CHW@NYY
game_typefull
mlbID700250
playerID700250
playerNameBen Rice
pos1B
startedTrue
startingPositionDH
teamNYY
teamID19
game_date2026-06-17
sl_k_percent23.1
sl_bb_percent13.4
sl_woba0.423
sl_xwoba0.393
sl_xba0.284
sl_xslg0.527
sl_sweet_spot_percent41.2
sl_barrel_batted_rate15.4
sl_hard_hit_percent48.4
sl_exit_velocity_avg92.1
sl_launch_angle_avg14.4
sl_whiff_percent26.2
sl_swing_percent42.2
Paul Goldschmidt (502671) · BATTER · DH · Team NYY
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 127
All-history rows before 20260618: 127
System season_avg: 0.3010
Data season_avg (2026 season-to-date): 0.2930
Diff (system - data): 0.0080
System opponent_avg: 0.4000

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1780.0000.000Hitting_2B0.2280.000-0.2280.000
predicted_3B0.0220.0000.000Hitting_3B0.0390.000-0.0390.000
predicted_AB3.8205.0004.000Hitting_AB3.7095.0001.2910.000
predicted_AVG0.2710.2000.250Hitting_AVG0.2930.400-0.093-0.200
predicted_BB0.3110.0000.000Hitting_BB0.3940.000-0.3940.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H1.0401.0001.000Hitting_H1.0872.000-0.087-1.000
predicted_HR0.2300.0000.000Hitting_HR0.2281.000-0.228-1.000
predicted_OBP0.3490.2000.250Hitting_OBP0.3710.400-0.171-0.200
predicted_R0.5560.0001.000Hitting_R0.6541.000-0.654-1.000
predicted_RBI0.7700.0001.000Hitting_RBI0.6543.000-0.654-3.000
predicted_SLG0.5250.2000.250Hitting_SLG0.5611.000-0.361-0.800
predicted_SO0.7560.0001.000Hitting_SO0.7800.000-0.7800.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics3
Deboosted Metrics6
Better Metrics4
Worse Metrics5
Biggest Boostpredicted_AB: 3.8200 -> 5.0000 (boost 1.1800, better)
Biggest Deboostpredicted_RBI: 0.7700 -> 0.0000 (deboost -0.7700, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend66060predicted_H: 1.0400 -> 1.1377 (boost 0.0977, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot33030predicted_RBI: 0.8485 -> 0.9104 (boost 0.0619, better)-Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73425predicted_SO: 0.7440 -> 1.0000 (boost 0.2560, worse)predicted_BB: 0.2899 -> 0.0000 (deboost -0.2899, worse)AB rounded to 4 (raw=3.88), rates preserved: AVG=0.305 HR/AB=0.070
5consistency_constraints11010predicted_R: 0.5869 -> 1.0000 (boost 0.4131, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.5657 -> 0.2500 (deboost -0.3157, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference41322predicted_AB: 4.0000 -> 5.0000 (boost 1.0000, better)predicted_R: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2500 -> 0.5657 (boost 0.3157, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "502671",
  "player_name": "Paul Goldschmidt",
  "position": "DH",
  "team": "NYY",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.178,
        "predicted_3B": 0.022,
        "predicted_AB": 3.82,
        "predicted_AVG": 0.271,
        "predicted_BB": 0.311,
        "predicted_H": 1.04,
        "predicted_HR": 0.23,
        "predicted_OBP": 0.349,
        "predicted_R": 0.556,
        "predicted_RBI": 0.77,
        "predicted_SLG": 0.525,
        "predicted_SO": 0.756
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1567,
        "predicted_3B": 0.0191,
        "predicted_AB": 3.8834,
        "predicted_AVG": 0.2917,
        "predicted_BB": 0.2852,
        "predicted_H": 1.1377,
        "predicted_HBP": 0.03,
        "predicted_HR": 0.2619,
        "predicted_OBP": 0.3554,
        "predicted_R": 0.547,
        "predicted_RBI": 0.8485,
        "predicted_SLG": 0.5528,
        "predicted_SO": 0.7564
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.178,
          "after": 0.1567,
          "delta": -0.0213,
          "percent_delta": -0.1197,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.022,
          "after": 0.0191,
          "delta": -0.0029,
          "percent_delta": -0.1318,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.82,
          "after": 3.8834,
          "delta": 0.0634,
          "percent_delta": 0.0166,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.271,
          "after": 0.2917,
          "delta": 0.0207,
          "percent_delta": 0.0764,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.311,
          "after": 0.2852,
          "delta": -0.0258,
          "percent_delta": -0.083,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.04,
          "after": 1.1377,
          "delta": 0.0977,
          "percent_delta": 0.0939,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.23,
          "after": 0.2619,
          "delta": 0.0319,
          "percent_delta": 0.1387,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.349,
          "after": 0.3554,
          "delta": 0.0064,
          "percent_delta": 0.0183,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.556,
          "after": 0.547,
          "delta": -0.009,
          "percent_delta": -0.0162,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.77,
          "after": 0.8485,
          "delta": 0.0785,
          "percent_delta": 0.1019,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.525,
          "after": 0.5528,
          "delta": 0.0278,
          "percent_delta": 0.053,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.756,
          "after": 0.7564,
          "delta": 0.0004,
          "percent_delta": 0.0005,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 6,
        "deboosted_metrics": 0,
        "better_metrics": 6,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 1.04,
          "after": 1.1377,
          "delta": 0.0977,
          "percent_delta": 0.0939,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 45
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1567,
        "predicted_3B": 0.0191,
        "predicted_AB": 3.8834,
        "predicted_AVG": 0.3051,
        "predicted_BB": 0.2899,
        "predicted_H": 1.1849,
        "predicted_HBP": 0.03,
        "predicted_HR": 0.2724,
        "predicted_OBP": 0.3534,
        "predicted_R": 0.5869,
        "predicted_RBI": 0.9104,
        "predicted_SLG": 0.5657,
        "predicted_SO": 0.744
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1567,
          "after": 0.1567,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0191,
          "after": 0.0191,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8834,
          "after": 3.8834,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2917,
          "after": 0.3051,
          "delta": 0.0134,
          "percent_delta": 0.0459,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2852,
          "after": 0.2899,
          "delta": 0.0047,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.1377,
          "after": 1.1849,
          "delta": 0.0472,
          "percent_delta": 0.0415,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.03,
          "after": 0.03,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2619,
          "after": 0.2724,
          "delta": 0.0105,
          "percent_delta": 0.0401,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3554,
          "after": 0.3534,
          "delta": -0.002,
          "percent_delta": -0.0056,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.547,
          "after": 0.5869,
          "delta": 0.0399,
          "percent_delta": 0.0729,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.8485,
          "after": 0.9104,
          "delta": 0.0619,
          "percent_delta": 0.073,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5528,
          "after": 0.5657,
          "delta": 0.0129,
          "percent_delta": 0.0233,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7564,
          "after": 0.744,
          "delta": -0.0124,
          "percent_delta": -0.0164,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.8485,
          "after": 0.9104,
          "delta": 0.0619,
          "percent_delta": 0.073,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.88), rates preserved: AVG=0.305 HR/AB=0.070",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1567,
          "after": 0.0,
          "delta": -0.1567,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0191,
          "after": 0.0,
          "delta": -0.0191,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8834,
          "after": 4.0,
          "delta": 0.1166,
          "percent_delta": 0.03,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2899,
          "after": 0.0,
          "delta": -0.2899,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.1849,
          "after": 1.0,
          "delta": -0.1849,
          "percent_delta": -0.156,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.03,
          "after": 0.0,
          "delta": -0.03,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2724,
          "after": 0.0,
          "delta": -0.2724,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.9104,
          "after": 1.0,
          "delta": 0.0896,
          "percent_delta": 0.0984,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.744,
          "after": 1.0,
          "delta": 0.256,
          "percent_delta": 0.3441,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.744,
          "after": 1.0,
          "delta": 0.256,
          "percent_delta": 0.3441,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.2899,
          "after": 0.0,
          "delta": -0.2899,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5869,
          "after": 1.0,
          "delta": 0.4131,
          "percent_delta": 0.7039,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5869,
          "after": 1.0,
          "delta": 0.4131,
          "percent_delta": 0.7039,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.3051,
          "after": 0.25,
          "delta": -0.0551,
          "percent_delta": -0.1806,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3534,
          "after": 0.25,
          "delta": -0.1034,
          "percent_delta": -0.2926,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5657,
          "after": 0.25,
          "delta": -0.3157,
          "percent_delta": -0.5581,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.5657,
          "after": 0.25,
          "delta": -0.3157,
          "percent_delta": -0.5581,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 5.0,
          "delta": 1.0,
          "percent_delta": 0.25,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 1,
        "deboosted_metrics": 3,
        "better_metrics": 2,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 5.0,
          "delta": 1.0,
          "percent_delta": 0.25,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.3051,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3534,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.5657,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.3051,
          "delta": 0.0551,
          "percent_delta": 0.2205,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3534,
          "delta": 0.1034,
          "percent_delta": 0.4136,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.5657,
          "delta": 0.3157,
          "percent_delta": 1.263,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.5657,
          "delta": 0.3157,
          "percent_delta": 1.263,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.178,
        "after": 0.0,
        "delta": -0.178,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.022,
        "after": 0.0,
        "delta": -0.022,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.82,
        "after": 5.0,
        "delta": 1.18,
        "percent_delta": 0.3089,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.271,
        "after": 0.3051,
        "delta": 0.0341,
        "percent_delta": 0.1258,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.311,
        "after": 0.0,
        "delta": -0.311,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.04,
        "after": 1.0,
        "delta": -0.04,
        "percent_delta": -0.0385,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.23,
        "after": 0.0,
        "delta": -0.23,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.349,
        "after": 0.3534,
        "delta": 0.0044,
        "percent_delta": 0.0126,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.556,
        "after": 0.0,
        "delta": -0.556,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.77,
        "after": 0.0,
        "delta": -0.77,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.525,
        "after": 0.5657,
        "delta": 0.0407,
        "percent_delta": 0.0775,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.756,
        "after": 0.0,
        "delta": -0.756,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 3,
      "deboosted_metrics": 6,
      "better_metrics": 4,
      "worse_metrics": 5,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.82,
        "after": 5.0,
        "delta": 1.18,
        "percent_delta": 0.3089,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.77,
        "after": 0.0,
        "delta": -0.77,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.178-
predicted_3B0.022-
predicted_AB3.820-
predicted_AVG0.271-
predicted_BB0.311-
predicted_H1.040-
predicted_HR0.230-
predicted_OBP0.349-
predicted_R0.556-
predicted_RBI0.770-
predicted_SLG0.525-
predicted_SO0.756-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.157-0.021
predicted_3B0.019-0.003
predicted_AB3.8830.063
predicted_AVG0.2920.021
predicted_BB0.285-0.026
predicted_H1.1380.098
predicted_HBP0.030-
predicted_HR0.2620.032
predicted_OBP0.3550.006
predicted_R0.547-0.009
predicted_RBI0.8490.079
predicted_SLG0.5530.028
predicted_SO0.7560.000
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1570.000
predicted_3B0.0190.000
predicted_AB3.8830.000
predicted_AVG0.3050.013
predicted_BB0.2900.005
predicted_H1.1850.047
predicted_HBP0.0300.000
predicted_HR0.2720.010
predicted_OBP0.353-0.002
predicted_R0.5870.040
predicted_RBI0.9100.062
predicted_SLG0.5660.013
predicted_SO0.744-0.012
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.88), rates preserved: AVG=0.305 HR/AB=0.070

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.157
predicted_3B0.000-0.019
predicted_AB4.0000.117
predicted_AVG0.250-0.055
predicted_BB0.000-0.290
predicted_H1.000-0.185
predicted_HR0.000-0.272
predicted_OBP0.250-0.103
predicted_R1.0000.413
predicted_RBI1.0000.090
predicted_SLG0.250-0.316
predicted_SO1.0000.256
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB5.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 45
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-23.0009.0000.0000.0003.0008.0003.0000.0004.0000.39130.39130.78260.39130.13040.34780.00000.1739
last_100.2010-43.00016.0000.0000.0004.00013.0004.0002.0006.0000.37210.39130.65120.37210.09300.30230.04650.1395
season0.6045-166.00050.0008.0001.00011.00036.00025.00014.00034.0000.30120.36070.56020.30120.06630.21690.08430.2048
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1260
predicted_3B0.0150
predicted_AB3.9750
predicted_AVG0.3217
predicted_BB0.2480
predicted_H1.2790
predicted_HBP0.0300
predicted_HR0.3080
predicted_OBP0.3646
predicted_R0.5340
predicted_RBI0.9620
predicted_SLG0.5929
predicted_SO0.7570
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.17800.12600.1567model_form_blend
predicted_3B0.02200.01500.0191model_form_blend
predicted_AB3.82003.97503.8834model_form_blend
predicted_AVG0.27100.32170.2917model_form_blend
predicted_BB0.31100.24800.2852model_form_blend
predicted_H1.04001.27901.1377model_form_blend
predicted_HBP-0.03000.0300form_only
predicted_HR0.23000.30800.2619model_form_blend
predicted_OBP0.34900.36460.3554model_form_blend
predicted_R0.55600.53400.5470model_form_blend
predicted_RBI0.77000.96200.8485model_form_blend
predicted_SLG0.52500.59290.5528model_form_blend
predicted_SO0.75600.75700.7564model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date127
Season rows before report date127
Report year2026
Profile rows used45
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB5
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.301

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.4
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R1
Hitting_RBI3
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB5
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B
gameID20260617_CHW@NYY
game_typefull
mlbID502671
playerID502671
playerNamePaul Goldschmidt
pos1B
startedTrue
startingPosition1B
teamNYY
teamID19
game_date2026-06-17
sl_k_percent18.4
sl_bb_percent8.1
sl_woba0.399
sl_xwoba0.363
sl_xba0.274
sl_xslg0.495
sl_sweet_spot_percent36.8
sl_barrel_batted_rate12.0
sl_hard_hit_percent40.6
sl_exit_velocity_avg87.9
sl_launch_angle_avg16.5
sl_whiff_percent23.6
sl_swing_percent48.5
Jasson Domínguez (691176) · BATTER · RF · Team NYY
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 36
All-history rows before 20260618: 36
System season_avg: 0.2090
Data season_avg (2026 season-to-date): 0.2214
Diff (system - data): -0.0124
System opponent_avg: 0.2000

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.3640.0000.000Hitting_2B0.3331.000-0.333-1.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.9094.0004.000Hitting_AB3.8895.0000.111-1.000
predicted_AVG0.2270.2500.250Hitting_AVG0.2210.2000.0290.050
predicted_BB0.1821.0000.000Hitting_BB0.1670.0000.8331.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.8601.0001.000Hitting_H0.8611.0000.1390.000
predicted_HR0.1500.0000.000Hitting_HR0.1670.000-0.1670.000
predicted_OBP0.2840.4000.250Hitting_OBP0.2640.2000.1360.200
predicted_R0.5450.0001.000Hitting_R0.5001.000-0.500-1.000
predicted_RBI0.4500.0000.000Hitting_RBI0.5830.000-0.5830.000
predicted_SLG0.4120.2500.250Hitting_SLG0.4360.400-0.186-0.150
predicted_SO0.5451.0001.000Hitting_SO0.5000.0000.5001.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics5
Deboosted Metrics5
Better Metrics4
Worse Metrics6
Biggest Boostpredicted_BB: 0.1820 -> 1.0000 (boost 0.8180, better)
Biggest Deboostpredicted_R: 0.5450 -> 0.0000 (deboost -0.5450, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend00000--Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot21111predicted_SLG: 0.4161 -> 0.4407 (boost 0.0246, better)predicted_OBP: 0.2801 -> 0.2660 (deboost -0.0141, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling83526predicted_SO: 0.5769 -> 1.0000 (boost 0.4231, worse)predicted_RBI: 0.4839 -> 0.0000 (deboost -0.4839, worse)AB rounded to 4 (raw=3.91), rates preserved: AVG=0.228 HR/AB=0.041
5consistency_constraints11010predicted_R: 0.5833 -> 1.0000 (boost 0.4167, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2281 -> 0.2500 (boost 0.0219, better)predicted_SLG: 0.4407 -> 0.2500 (deboost -0.1907, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21111predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_R: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.2500 -> 0.4407 (boost 0.1907, better)predicted_AVG: 0.2500 -> 0.2281 (deboost -0.0219, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "691176",
  "player_name": "Jasson Domínguez",
  "position": "RF",
  "team": "NYY",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.364,
        "predicted_3B": 0.0,
        "predicted_AB": 3.909,
        "predicted_AVG": 0.227,
        "predicted_BB": 0.182,
        "predicted_H": 0.86,
        "predicted_HR": 0.15,
        "predicted_OBP": 0.284,
        "predicted_R": 0.545,
        "predicted_RBI": 0.45,
        "predicted_SLG": 0.412,
        "predicted_SO": 0.545
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.3433,
        "predicted_3B": 0.002,
        "predicted_AB": 3.9147,
        "predicted_AVG": 0.2237,
        "predicted_BB": 0.1987,
        "predicted_H": 0.8573,
        "predicted_HBP": 0.059,
        "predicted_HR": 0.1554,
        "predicted_OBP": 0.2801,
        "predicted_R": 0.5437,
        "predicted_RBI": 0.451,
        "predicted_SLG": 0.4161,
        "predicted_SO": 0.5865
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.364,
          "after": 0.3433,
          "delta": -0.0207,
          "percent_delta": -0.0569,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.002,
          "delta": 0.002,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.909,
          "after": 3.9147,
          "delta": 0.0057,
          "percent_delta": 0.0015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.227,
          "after": 0.2237,
          "delta": -0.0033,
          "percent_delta": -0.0145,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.182,
          "after": 0.1987,
          "delta": 0.0167,
          "percent_delta": 0.0918,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.86,
          "after": 0.8573,
          "delta": -0.0027,
          "percent_delta": -0.0031,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.15,
          "after": 0.1554,
          "delta": 0.0054,
          "percent_delta": 0.036,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.284,
          "after": 0.2801,
          "delta": -0.0039,
          "percent_delta": -0.0137,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.545,
          "after": 0.5437,
          "delta": -0.0013,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.45,
          "after": 0.451,
          "delta": 0.001,
          "percent_delta": 0.0022,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.412,
          "after": 0.4161,
          "delta": 0.0041,
          "percent_delta": 0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.545,
          "after": 0.5865,
          "delta": 0.0415,
          "percent_delta": 0.0761,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 11
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.3433,
        "predicted_3B": 0.002,
        "predicted_AB": 3.9147,
        "predicted_AVG": 0.2281,
        "predicted_BB": 0.202,
        "predicted_H": 0.8929,
        "predicted_HBP": 0.059,
        "predicted_HR": 0.1616,
        "predicted_OBP": 0.266,
        "predicted_R": 0.5833,
        "predicted_RBI": 0.4839,
        "predicted_SLG": 0.4407,
        "predicted_SO": 0.5769
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.3433,
          "after": 0.3433,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.002,
          "after": 0.002,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9147,
          "after": 3.9147,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2237,
          "after": 0.2281,
          "delta": 0.0044,
          "percent_delta": 0.0197,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.1987,
          "after": 0.202,
          "delta": 0.0033,
          "percent_delta": 0.0166,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8573,
          "after": 0.8929,
          "delta": 0.0356,
          "percent_delta": 0.0415,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.059,
          "after": 0.059,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1554,
          "after": 0.1616,
          "delta": 0.0062,
          "percent_delta": 0.0399,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2801,
          "after": 0.266,
          "delta": -0.0141,
          "percent_delta": -0.0503,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5437,
          "after": 0.5833,
          "delta": 0.0396,
          "percent_delta": 0.0728,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.451,
          "after": 0.4839,
          "delta": 0.0329,
          "percent_delta": 0.0729,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4161,
          "after": 0.4407,
          "delta": 0.0246,
          "percent_delta": 0.0591,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5865,
          "after": 0.5769,
          "delta": -0.0096,
          "percent_delta": -0.0164,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.4161,
          "after": 0.4407,
          "delta": 0.0246,
          "percent_delta": 0.0591,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.2801,
          "after": 0.266,
          "delta": -0.0141,
          "percent_delta": -0.0503,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.91), rates preserved: AVG=0.228 HR/AB=0.041",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.3433,
          "after": 0.0,
          "delta": -0.3433,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.002,
          "after": 0.0,
          "delta": -0.002,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9147,
          "after": 4.0,
          "delta": 0.0853,
          "percent_delta": 0.0218,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.202,
          "after": 0.0,
          "delta": -0.202,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8929,
          "after": 1.0,
          "delta": 0.1071,
          "percent_delta": 0.1199,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.059,
          "after": 0.0,
          "delta": -0.059,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1616,
          "after": 0.0,
          "delta": -0.1616,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4839,
          "after": 0.0,
          "delta": -0.4839,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5769,
          "after": 1.0,
          "delta": 0.4231,
          "percent_delta": 0.7334,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 3,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.5769,
          "after": 1.0,
          "delta": 0.4231,
          "percent_delta": 0.7334,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4839,
          "after": 0.0,
          "delta": -0.4839,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5833,
          "after": 1.0,
          "delta": 0.4167,
          "percent_delta": 0.7144,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5833,
          "after": 1.0,
          "delta": 0.4167,
          "percent_delta": 0.7144,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2281,
          "after": 0.25,
          "delta": 0.0219,
          "percent_delta": 0.096,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.266,
          "after": 0.25,
          "delta": -0.016,
          "percent_delta": -0.0602,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4407,
          "after": 0.25,
          "delta": -0.1907,
          "percent_delta": -0.4327,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2281,
          "after": 0.25,
          "delta": 0.0219,
          "percent_delta": 0.096,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4407,
          "after": 0.25,
          "delta": -0.1907,
          "percent_delta": -0.4327,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2281,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.266,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_RF": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4407,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2281,
          "delta": -0.0219,
          "percent_delta": -0.0877,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.266,
          "delta": 0.016,
          "percent_delta": 0.0638,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4407,
          "delta": 0.1907,
          "percent_delta": 0.7627,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4407,
          "delta": 0.1907,
          "percent_delta": 0.7627,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2281,
          "delta": -0.0219,
          "percent_delta": -0.0877,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.364,
        "after": 0.0,
        "delta": -0.364,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.909,
        "after": 4.0,
        "delta": 0.091,
        "percent_delta": 0.0233,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.227,
        "after": 0.2281,
        "delta": 0.0011,
        "percent_delta": 0.0048,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.182,
        "after": 1.0,
        "delta": 0.818,
        "percent_delta": 4.4945,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.86,
        "after": 1.0,
        "delta": 0.14,
        "percent_delta": 0.1628,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.15,
        "after": 0.0,
        "delta": -0.15,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.284,
        "after": 0.266,
        "delta": -0.018,
        "percent_delta": -0.0634,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.545,
        "after": 0.0,
        "delta": -0.545,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.45,
        "after": 0.0,
        "delta": -0.45,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.412,
        "after": 0.4407,
        "delta": 0.0287,
        "percent_delta": 0.0697,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.545,
        "after": 1.0,
        "delta": 0.455,
        "percent_delta": 0.8349,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 5,
      "deboosted_metrics": 5,
      "better_metrics": 4,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.182,
        "after": 1.0,
        "delta": 0.818,
        "percent_delta": 4.4945,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_R",
        "before": 0.545,
        "after": 0.0,
        "delta": -0.545,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.364-
predicted_3B0.000-
predicted_AB3.909-
predicted_AVG0.227-
predicted_BB0.182-
predicted_H0.860-
predicted_HR0.150-
predicted_OBP0.284-
predicted_R0.545-
predicted_RBI0.450-
predicted_SLG0.412-
predicted_SO0.545-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.343-0.021
predicted_3B0.0020.002
predicted_AB3.9150.006
predicted_AVG0.224-0.003
predicted_BB0.1990.017
predicted_H0.857-0.003
predicted_HBP0.059-
predicted_HR0.1550.005
predicted_OBP0.280-0.004
predicted_R0.544-0.001
predicted_RBI0.4510.001
predicted_SLG0.4160.004
predicted_SO0.5870.041
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.3430.000
predicted_3B0.0020.000
predicted_AB3.9150.000
predicted_AVG0.2280.004
predicted_BB0.2020.003
predicted_H0.8930.036
predicted_HBP0.0590.000
predicted_HR0.1620.006
predicted_OBP0.266-0.014
predicted_R0.5830.040
predicted_RBI0.4840.033
predicted_SLG0.4410.025
predicted_SO0.577-0.010
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.91), rates preserved: AVG=0.228 HR/AB=0.041

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.343
predicted_3B0.000-0.002
predicted_AB4.0000.085
predicted_AVG0.2500.022
predicted_BB0.000-0.202
predicted_H1.0000.107
predicted_HR0.000-0.162
predicted_OBP0.250-0.016
predicted_R1.0000.417
predicted_RBI0.000-0.484
predicted_SLG0.250-0.191
predicted_SO1.0000.423
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R0.000-1.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 11
Reference playing time: 3.909
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-21.0003.0002.0000.0001.0001.0003.0001.0003.0000.14290.18180.38100.14290.04760.04760.04760.1429
last_100.2010-39.0008.0004.0000.0002.0005.0006.0002.0005.0000.20510.26190.46150.20510.05130.12820.05130.1282
season0.6011-43.0009.0004.0000.0002.0005.0006.0002.0006.0000.20930.26090.44190.20930.04650.11630.04650.1395
Weighted Prediction From Real Data
MetricValue
predicted_2B0.3020
predicted_3B0.0060
predicted_AB3.9260
predicted_AVG0.2170
predicted_BB0.2320
predicted_H0.8520
predicted_HBP0.0590
predicted_HR0.1660
predicted_OBP0.2722
predicted_R0.5410
predicted_RBI0.4530
predicted_SLG0.4242
predicted_SO0.6690
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.36400.30200.3433model_form_blend
predicted_3B0.00000.00600.0020model_form_blend
predicted_AB3.90903.92603.9147model_form_blend
predicted_AVG0.22700.21700.2237model_form_blend
predicted_BB0.18200.23200.1987model_form_blend
predicted_H0.86000.85200.8573model_form_blend
predicted_HBP-0.05900.0590form_only
predicted_HR0.15000.16600.1554model_form_blend
predicted_OBP0.28400.27220.2801model_form_blend
predicted_R0.54500.54100.5437model_form_blend
predicted_RBI0.45000.45300.4510model_form_blend
predicted_SLG0.41200.42420.4161model_form_blend
predicted_SO0.54500.66900.5865model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date36
Season rows before report date36
Report year2026
Profile rows used11
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB1
SO1
SF0
HBP0
season_avg0.209

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB5
Hitting_AVG0.2
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB2
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedRF
gameID20260617_CHW@NYY
game_typefull
mlbID691176
playerID691176
playerNameJasson Domínguez
posDH
startedTrue
startingPositionRF
teamNYY
teamID19
game_date2026-06-17
sl_k_percent13.0
sl_bb_percent4.3
sl_woba0.304
sl_xwoba0.306
sl_xba0.29
sl_xslg0.345
sl_sweet_spot_percent24.3
sl_barrel_batted_rate0.0
sl_hard_hit_percent37.8
sl_exit_velocity_avg90.1
sl_launch_angle_avg8.7
sl_whiff_percent28.2
sl_swing_percent50.0
Jazz Chisholm Jr. (665862) · BATTER · 2B · Team NYY
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 232
All-history rows before 20260618: 232
System season_avg: 0.2290
Data season_avg (2026 season-to-date): 0.2448
Diff (system - data): -0.0158
System opponent_avg: 0.2220
System season_avg diverges from 2026 season-to-date by -0.0158. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1471.0000.000Hitting_2B0.1850.0000.8151.000
predicted_3B0.0290.0000.000Hitting_3B0.0220.000-0.0220.000
predicted_AB3.7204.0004.000Hitting_AB3.7505.0000.250-1.000
predicted_AVG0.2250.5000.250Hitting_AVG0.2450.2000.2550.300
predicted_BB0.4261.0001.000Hitting_BB0.4660.0000.5341.000
predicted_CS-0.0000.000BaseRunning_CS0.0600.000-0.0600.000
predicted_H0.8402.0001.000Hitting_H0.9181.0001.0821.000
predicted_HR0.1600.0000.000Hitting_HR0.1341.000-0.134-1.000
predicted_OBP0.3120.6000.400Hitting_OBP0.3290.2000.2710.400
predicted_R0.5291.0001.000Hitting_R0.5471.0000.4530.000
predicted_RBI0.5401.0001.000Hitting_RBI0.4401.0000.5600.000
predicted_SB-0.0000.000BaseRunning_SB0.2500.000-0.2500.000
predicted_SLG0.4070.7500.250Hitting_SLG0.4130.8000.337-0.050
predicted_SO1.1910.0001.000Hitting_SO1.1982.000-1.198-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics11
Boosted Metrics9
Deboosted Metrics2
Better Metrics10
Worse Metrics1
Biggest Boostpredicted_H: 0.8400 -> 2.0000 (boost 1.1600, better)
Biggest Deboostpredicted_SO: 1.1910 -> 0.0000 (deboost -1.1910, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend11010predicted_SLG: 0.4070 -> 0.4151 (boost 0.0081, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot33030predicted_SLG: 0.4151 -> 0.4312 (boost 0.0161, better)-Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling74352predicted_BB: 0.4771 -> 1.0000 (boost 0.5229, better)predicted_SO: 1.2038 -> 1.0000 (deboost -0.2038, better)AB rounded to 4 (raw=3.72), rates preserved: AVG=0.230 HR/AB=0.047
5consistency_constraints11010predicted_R: 0.6192 -> 1.0000 (boost 0.3808, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_OBP: 0.3176 -> 0.4000 (boost 0.0824, better)predicted_SLG: 0.4312 -> 0.2500 (deboost -0.1812, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference32130predicted_2B: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.2500 -> 0.4312 (boost 0.1812, better)predicted_OBP: 0.4000 -> 0.3176 (deboost -0.0824, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "665862",
  "player_name": "Jazz Chisholm Jr.",
  "position": "2B",
  "team": "NYY",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.147,
        "predicted_3B": 0.029,
        "predicted_AB": 3.72,
        "predicted_AVG": 0.225,
        "predicted_BB": 0.426,
        "predicted_H": 0.84,
        "predicted_HR": 0.16,
        "predicted_OBP": 0.312,
        "predicted_R": 0.529,
        "predicted_RBI": 0.54,
        "predicted_SLG": 0.407,
        "predicted_SO": 1.191
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1268,
        "predicted_3B": 0.0463,
        "predicted_AB": 3.7246,
        "predicted_AVG": 0.2206,
        "predicted_BB": 0.4694,
        "predicted_H": 0.8231,
        "predicted_HBP": 0.011,
        "predicted_HR": 0.1697,
        "predicted_OBP": 0.3119,
        "predicted_R": 0.5771,
        "predicted_RBI": 0.5628,
        "predicted_SLG": 0.4151,
        "predicted_SO": 1.2239
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.147,
          "after": 0.1268,
          "delta": -0.0202,
          "percent_delta": -0.1374,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.029,
          "after": 0.0463,
          "delta": 0.0173,
          "percent_delta": 0.5966,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.72,
          "after": 3.7246,
          "delta": 0.0046,
          "percent_delta": 0.0012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.225,
          "after": 0.2206,
          "delta": -0.0044,
          "percent_delta": -0.0196,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.426,
          "after": 0.4694,
          "delta": 0.0434,
          "percent_delta": 0.1019,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.84,
          "after": 0.8231,
          "delta": -0.0169,
          "percent_delta": -0.0201,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.16,
          "after": 0.1697,
          "delta": 0.0097,
          "percent_delta": 0.0606,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.312,
          "after": 0.3119,
          "delta": -0.0001,
          "percent_delta": -0.0003,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.529,
          "after": 0.5771,
          "delta": 0.0481,
          "percent_delta": 0.0909,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.54,
          "after": 0.5628,
          "delta": 0.0228,
          "percent_delta": 0.0422,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.407,
          "after": 0.4151,
          "delta": 0.0081,
          "percent_delta": 0.0199,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.191,
          "after": 1.2239,
          "delta": 0.0329,
          "percent_delta": 0.0276,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.407,
          "after": 0.4151,
          "delta": 0.0081,
          "percent_delta": 0.0199,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 68
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1268,
        "predicted_3B": 0.0463,
        "predicted_AB": 3.7246,
        "predicted_AVG": 0.2302,
        "predicted_BB": 0.4771,
        "predicted_H": 0.8573,
        "predicted_HBP": 0.011,
        "predicted_HR": 0.1765,
        "predicted_OBP": 0.3176,
        "predicted_R": 0.6192,
        "predicted_RBI": 0.6038,
        "predicted_SLG": 0.4312,
        "predicted_SO": 1.2038
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1268,
          "after": 0.1268,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0463,
          "after": 0.0463,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.7246,
          "after": 3.7246,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2206,
          "after": 0.2302,
          "delta": 0.0096,
          "percent_delta": 0.0435,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4694,
          "after": 0.4771,
          "delta": 0.0077,
          "percent_delta": 0.0164,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8231,
          "after": 0.8573,
          "delta": 0.0342,
          "percent_delta": 0.0416,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.011,
          "after": 0.011,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1697,
          "after": 0.1765,
          "delta": 0.0068,
          "percent_delta": 0.0401,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3119,
          "after": 0.3176,
          "delta": 0.0057,
          "percent_delta": 0.0183,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5771,
          "after": 0.6192,
          "delta": 0.0421,
          "percent_delta": 0.073,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5628,
          "after": 0.6038,
          "delta": 0.041,
          "percent_delta": 0.0729,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4151,
          "after": 0.4312,
          "delta": 0.0161,
          "percent_delta": 0.0388,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.2239,
          "after": 1.2038,
          "delta": -0.0201,
          "percent_delta": -0.0164,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.4151,
          "after": 0.4312,
          "delta": 0.0161,
          "percent_delta": 0.0388,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.72), rates preserved: AVG=0.230 HR/AB=0.047",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1268,
          "after": 0.0,
          "delta": -0.1268,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0463,
          "after": 0.0,
          "delta": -0.0463,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.7246,
          "after": 4.0,
          "delta": 0.2754,
          "percent_delta": 0.0739,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4771,
          "after": 1.0,
          "delta": 0.5229,
          "percent_delta": 1.096,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8573,
          "after": 1.0,
          "delta": 0.1427,
          "percent_delta": 0.1665,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.011,
          "after": 0.0,
          "delta": -0.011,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1765,
          "after": 0.0,
          "delta": -0.1765,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6038,
          "after": 1.0,
          "delta": 0.3962,
          "percent_delta": 0.6562,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.2038,
          "after": 1.0,
          "delta": -0.2038,
          "percent_delta": -0.1693,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 4,
        "deboosted_metrics": 3,
        "better_metrics": 5,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.4771,
          "after": 1.0,
          "delta": 0.5229,
          "percent_delta": 1.096,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.2038,
          "after": 1.0,
          "delta": -0.2038,
          "percent_delta": -0.1693,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.6192,
          "after": 1.0,
          "delta": 0.3808,
          "percent_delta": 0.615,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.6192,
          "after": 1.0,
          "delta": 0.3808,
          "percent_delta": 0.615,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.4,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2302,
          "after": 0.25,
          "delta": 0.0198,
          "percent_delta": 0.086,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3176,
          "after": 0.4,
          "delta": 0.0824,
          "percent_delta": 0.2594,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4312,
          "after": 0.25,
          "delta": -0.1812,
          "percent_delta": -0.4202,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3176,
          "after": 0.4,
          "delta": 0.0824,
          "percent_delta": 0.2594,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4312,
          "after": 0.25,
          "delta": -0.1812,
          "percent_delta": -0.4202,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2302,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3176,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4312,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2302,
          "delta": -0.0198,
          "percent_delta": -0.0794,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3176,
          "delta": -0.0824,
          "percent_delta": -0.2061,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4312,
          "delta": 0.1812,
          "percent_delta": 0.7249,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4312,
          "delta": 0.1812,
          "percent_delta": 0.7249,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3176,
          "delta": -0.0824,
          "percent_delta": -0.2061,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.147,
        "after": 1.0,
        "delta": 0.853,
        "percent_delta": 5.8027,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.029,
        "after": 0.0,
        "delta": -0.029,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.72,
        "after": 4.0,
        "delta": 0.28,
        "percent_delta": 0.0753,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.225,
        "after": 0.2302,
        "delta": 0.0052,
        "percent_delta": 0.0231,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.426,
        "after": 1.0,
        "delta": 0.574,
        "percent_delta": 1.3474,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.84,
        "after": 2.0,
        "delta": 1.16,
        "percent_delta": 1.381,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.16,
        "after": 0.0,
        "delta": -0.16,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.312,
        "after": 0.3176,
        "delta": 0.0056,
        "percent_delta": 0.0179,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.529,
        "after": 1.0,
        "delta": 0.471,
        "percent_delta": 0.8904,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.54,
        "after": 1.0,
        "delta": 0.46,
        "percent_delta": 0.8519,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.407,
        "after": 0.4312,
        "delta": 0.0242,
        "percent_delta": 0.0595,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.191,
        "after": 0.0,
        "delta": -1.191,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 9,
      "deboosted_metrics": 2,
      "better_metrics": 10,
      "worse_metrics": 1,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 0.84,
        "after": 2.0,
        "delta": 1.16,
        "percent_delta": 1.381,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 1.191,
        "after": 0.0,
        "delta": -1.191,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.147-
predicted_3B0.029-
predicted_AB3.720-
predicted_AVG0.225-
predicted_BB0.426-
predicted_H0.840-
predicted_HR0.160-
predicted_OBP0.312-
predicted_R0.529-
predicted_RBI0.540-
predicted_SLG0.407-
predicted_SO1.191-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.127-0.020
predicted_3B0.0460.017
predicted_AB3.7250.005
predicted_AVG0.221-0.004
predicted_BB0.4690.043
predicted_H0.823-0.017
predicted_HBP0.011-
predicted_HR0.1700.010
predicted_OBP0.312-0.000
predicted_R0.5770.048
predicted_RBI0.5630.023
predicted_SLG0.4150.008
predicted_SO1.2240.033
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1270.000
predicted_3B0.0460.000
predicted_AB3.7250.000
predicted_AVG0.2300.010
predicted_BB0.4770.008
predicted_H0.8570.034
predicted_HBP0.0110.000
predicted_HR0.1760.007
predicted_OBP0.3180.006
predicted_R0.6190.042
predicted_RBI0.6040.041
predicted_SLG0.4310.016
predicted_SO1.204-0.020
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.72), rates preserved: AVG=0.230 HR/AB=0.047

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.127
predicted_3B0.000-0.046
predicted_AB4.0000.275
predicted_AVG0.2500.020
predicted_BB1.0000.523
predicted_H1.0000.143
predicted_HR0.000-0.176
predicted_OBP0.4000.082
predicted_R1.0000.381
predicted_RBI1.0000.396
predicted_SLG0.250-0.181
predicted_SO1.000-0.204
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R1.0000.000
RBI1.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 68
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.0004.0000.0001.0001.0004.0004.0004.0008.0000.20000.33330.45000.20000.05000.20000.20000.4000
last_100.2010-36.0006.0000.0001.0003.0009.0009.0007.00014.0000.16670.29550.47220.16670.08330.25000.19440.3889
season0.6068-249.00057.00010.0002.00010.00030.00036.00029.00081.0000.22890.30960.40560.22890.04020.12050.11650.3253
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0990
predicted_3B0.0700
predicted_AB3.7310
predicted_AVG0.2145
predicted_BB0.5290
predicted_H0.8000
predicted_HBP0.0110
predicted_HR0.1830
predicted_OBP0.3117
predicted_R0.6430
predicted_RBI0.5940
predicted_SLG0.4261
predicted_SO1.2690
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.14700.09900.1268model_form_blend
predicted_3B0.02900.07000.0463model_form_blend
predicted_AB3.72003.73103.7246model_form_blend
predicted_AVG0.22500.21450.2206model_form_blend
predicted_BB0.42600.52900.4694model_form_blend
predicted_H0.84000.80000.8231model_form_blend
predicted_HBP-0.01100.0110form_only
predicted_HR0.16000.18300.1697model_form_blend
predicted_OBP0.31200.31170.3119model_form_blend
predicted_R0.52900.64300.5771model_form_blend
predicted_RBI0.54000.59400.5628model_form_blend
predicted_SLG0.40700.42610.4151model_form_blend
predicted_SO1.19101.26901.2239model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date232
Season rows before report date232
Report year2026
Profile rows used68
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB4
H2
2B1
3B0
HR0
R1
RBI1
BB1
SO0
SF0
HBP0
season_avg0.229

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.2
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R1
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB4
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_CHW@NYY
game_typefull
mlbID665862
playerID665862
playerNameJazz Chisholm Jr.
pos2B
startedTrue
startingPosition2B
teamNYY
teamID19
game_date2026-06-17
sl_k_percent28.5
sl_bb_percent11.3
sl_woba0.32
sl_xwoba0.3
sl_xba0.213
sl_xslg0.366
sl_sweet_spot_percent28.8
sl_barrel_batted_rate8.9
sl_hard_hit_percent40.6
sl_exit_velocity_avg90.1
sl_launch_angle_avg15.1
sl_whiff_percent32.0
sl_swing_percent43.3
José Caballero (676609) · BATTER · SS · Team NYY
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 180
All-history rows before 20260618: 180
System season_avg: 0.2640
Data season_avg (2026 season-to-date): 0.2748
Diff (system - data): -0.0108
System opponent_avg: 0.4290

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1670.0000.000Hitting_2B0.1830.000-0.1830.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.3504.0003.000Hitting_AB3.4783.0000.5221.000
predicted_AVG0.2570.5000.333Hitting_AVG0.2750.3330.2250.167
predicted_BB0.2000.0000.000Hitting_BB0.1890.000-0.1890.000
predicted_CS-0.0000.000BaseRunning_CS0.1280.000-0.1280.000
predicted_H0.8202.0001.000Hitting_H0.9561.0001.0441.000
predicted_HR0.1400.0000.000Hitting_HR0.1170.000-0.1170.000
predicted_OBP0.3200.5000.333Hitting_OBP0.3270.5000.1730.000
predicted_R0.4670.0001.000Hitting_R0.4721.000-0.472-1.000
predicted_RBI0.5500.0001.000Hitting_RBI0.4062.000-0.406-2.000
predicted_SLG0.4370.5000.333Hitting_SLG0.4280.3330.0720.167
predicted_SO0.7170.0001.000Hitting_SO0.6780.000-0.6780.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics4
Deboosted Metrics7
Better Metrics5
Worse Metrics6
Biggest Boostpredicted_H: 0.8200 -> 2.0000 (boost 1.1800, better)
Biggest Deboostpredicted_SO: 0.7170 -> 0.0000 (deboost -0.7170, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend66051predicted_AB: 3.3500 -> 3.4122 (boost 0.0622, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot21111predicted_SLG: 0.4541 -> 0.4611 (boost 0.0070, better)predicted_OBP: 0.3216 -> 0.3089 (deboost -0.0127, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling83526predicted_RBI: 0.6458 -> 1.0000 (boost 0.3542, better)predicted_AB: 3.4122 -> 3.0000 (deboost -0.4122, worse)AB rounded to 3 (raw=3.41), rates preserved: AVG=0.267 HR/AB=0.048
5consistency_constraints11010predicted_R: 0.5380 -> 1.0000 (boost 0.4620, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2667 -> 0.3330 (boost 0.0663, better)predicted_SLG: 0.4611 -> 0.3330 (deboost -0.1281, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference52332predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)predicted_R: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.4611 (boost 0.1281, better)predicted_AVG: 0.3330 -> 0.2667 (deboost -0.0663, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "676609",
  "player_name": "José Caballero",
  "position": "SS",
  "team": "NYY",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.167,
        "predicted_3B": 0.0,
        "predicted_AB": 3.35,
        "predicted_AVG": 0.257,
        "predicted_BB": 0.2,
        "predicted_H": 0.82,
        "predicted_HR": 0.14,
        "predicted_OBP": 0.32,
        "predicted_R": 0.467,
        "predicted_RBI": 0.55,
        "predicted_SLG": 0.437,
        "predicted_SO": 0.717
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1728,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.4122,
        "predicted_AVG": 0.263,
        "predicted_BB": 0.2046,
        "predicted_H": 0.8739,
        "predicted_HBP": 0.1,
        "predicted_HR": 0.1566,
        "predicted_OBP": 0.3216,
        "predicted_R": 0.5014,
        "predicted_RBI": 0.6019,
        "predicted_SLG": 0.4541,
        "predicted_SO": 0.7701
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.167,
          "after": 0.1728,
          "delta": 0.0058,
          "percent_delta": 0.0347,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.35,
          "after": 3.4122,
          "delta": 0.0622,
          "percent_delta": 0.0186,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.257,
          "after": 0.263,
          "delta": 0.006,
          "percent_delta": 0.0233,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2,
          "after": 0.2046,
          "delta": 0.0046,
          "percent_delta": 0.023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.82,
          "after": 0.8739,
          "delta": 0.0539,
          "percent_delta": 0.0657,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.14,
          "after": 0.1566,
          "delta": 0.0166,
          "percent_delta": 0.1186,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.32,
          "after": 0.3216,
          "delta": 0.0016,
          "percent_delta": 0.005,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.467,
          "after": 0.5014,
          "delta": 0.0344,
          "percent_delta": 0.0737,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.55,
          "after": 0.6019,
          "delta": 0.0519,
          "percent_delta": 0.0944,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.437,
          "after": 0.4541,
          "delta": 0.0171,
          "percent_delta": 0.0391,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.717,
          "after": 0.7701,
          "delta": 0.0531,
          "percent_delta": 0.0741,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 6,
        "deboosted_metrics": 0,
        "better_metrics": 5,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.35,
          "after": 3.4122,
          "delta": 0.0622,
          "percent_delta": 0.0186,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 60
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1728,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.4122,
        "predicted_AVG": 0.2667,
        "predicted_BB": 0.208,
        "predicted_H": 0.9102,
        "predicted_HBP": 0.1,
        "predicted_HR": 0.1629,
        "predicted_OBP": 0.3089,
        "predicted_R": 0.538,
        "predicted_RBI": 0.6458,
        "predicted_SLG": 0.4611,
        "predicted_SO": 0.7575
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1728,
          "after": 0.1728,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4122,
          "after": 3.4122,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.263,
          "after": 0.2667,
          "delta": 0.0037,
          "percent_delta": 0.0141,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2046,
          "after": 0.208,
          "delta": 0.0034,
          "percent_delta": 0.0166,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8739,
          "after": 0.9102,
          "delta": 0.0363,
          "percent_delta": 0.0415,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.1,
          "after": 0.1,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1566,
          "after": 0.1629,
          "delta": 0.0063,
          "percent_delta": 0.0402,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3216,
          "after": 0.3089,
          "delta": -0.0127,
          "percent_delta": -0.0395,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5014,
          "after": 0.538,
          "delta": 0.0366,
          "percent_delta": 0.073,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6019,
          "after": 0.6458,
          "delta": 0.0439,
          "percent_delta": 0.0729,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4541,
          "after": 0.4611,
          "delta": 0.007,
          "percent_delta": 0.0154,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7701,
          "after": 0.7575,
          "delta": -0.0126,
          "percent_delta": -0.0164,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.4541,
          "after": 0.4611,
          "delta": 0.007,
          "percent_delta": 0.0154,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3216,
          "after": 0.3089,
          "delta": -0.0127,
          "percent_delta": -0.0395,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.41), rates preserved: AVG=0.267 HR/AB=0.048",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1728,
          "after": 0.0,
          "delta": -0.1728,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4122,
          "after": 3.0,
          "delta": -0.4122,
          "percent_delta": -0.1208,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.208,
          "after": 0.0,
          "delta": -0.208,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9102,
          "after": 1.0,
          "delta": 0.0898,
          "percent_delta": 0.0987,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.1,
          "after": 0.0,
          "delta": -0.1,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1629,
          "after": 0.0,
          "delta": -0.1629,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6458,
          "after": 1.0,
          "delta": 0.3542,
          "percent_delta": 0.5485,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7575,
          "after": 1.0,
          "delta": 0.2425,
          "percent_delta": 0.3201,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 3,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.6458,
          "after": 1.0,
          "delta": 0.3542,
          "percent_delta": 0.5485,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.4122,
          "after": 3.0,
          "delta": -0.4122,
          "percent_delta": -0.1208,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.538,
          "after": 1.0,
          "delta": 0.462,
          "percent_delta": 0.8587,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.538,
          "after": 1.0,
          "delta": 0.462,
          "percent_delta": 0.8587,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2667,
          "after": 0.333,
          "delta": 0.0663,
          "percent_delta": 0.2486,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3089,
          "after": 0.333,
          "delta": 0.0241,
          "percent_delta": 0.078,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4611,
          "after": 0.333,
          "delta": -0.1281,
          "percent_delta": -0.2778,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2667,
          "after": 0.333,
          "delta": 0.0663,
          "percent_delta": 0.2486,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4611,
          "after": 0.333,
          "delta": -0.1281,
          "percent_delta": -0.2778,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 2,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2667,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3089,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4611,
        "predicted_SO": 0.0,
        "predicted_SS": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2667,
          "delta": -0.0663,
          "percent_delta": -0.199,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3089,
          "delta": -0.0241,
          "percent_delta": -0.0725,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4611,
          "delta": 0.1281,
          "percent_delta": 0.3845,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4611,
          "delta": 0.1281,
          "percent_delta": 0.3845,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2667,
          "delta": -0.0663,
          "percent_delta": -0.199,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.167,
        "after": 0.0,
        "delta": -0.167,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.35,
        "after": 4.0,
        "delta": 0.65,
        "percent_delta": 0.194,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.257,
        "after": 0.2667,
        "delta": 0.0097,
        "percent_delta": 0.0377,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.2,
        "after": 0.0,
        "delta": -0.2,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.82,
        "after": 2.0,
        "delta": 1.18,
        "percent_delta": 1.439,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.14,
        "after": 0.0,
        "delta": -0.14,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.32,
        "after": 0.3089,
        "delta": -0.0111,
        "percent_delta": -0.0347,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.467,
        "after": 0.0,
        "delta": -0.467,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.55,
        "after": 0.0,
        "delta": -0.55,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.437,
        "after": 0.4611,
        "delta": 0.0241,
        "percent_delta": 0.0551,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.717,
        "after": 0.0,
        "delta": -0.717,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 4,
      "deboosted_metrics": 7,
      "better_metrics": 5,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 0.82,
        "after": 2.0,
        "delta": 1.18,
        "percent_delta": 1.439,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.717,
        "after": 0.0,
        "delta": -0.717,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.167-
predicted_3B0.000-
predicted_AB3.350-
predicted_AVG0.257-
predicted_BB0.200-
predicted_H0.820-
predicted_HR0.140-
predicted_OBP0.320-
predicted_R0.467-
predicted_RBI0.550-
predicted_SLG0.437-
predicted_SO0.717-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1730.006
predicted_3B0.0010.001
predicted_AB3.4120.062
predicted_AVG0.2630.006
predicted_BB0.2050.005
predicted_H0.8740.054
predicted_HBP0.100-
predicted_HR0.1570.017
predicted_OBP0.3220.002
predicted_R0.5010.034
predicted_RBI0.6020.052
predicted_SLG0.4540.017
predicted_SO0.7700.053
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1730.000
predicted_3B0.0010.000
predicted_AB3.4120.000
predicted_AVG0.2670.004
predicted_BB0.2080.003
predicted_H0.9100.036
predicted_HBP0.1000.000
predicted_HR0.1630.006
predicted_OBP0.309-0.013
predicted_R0.5380.037
predicted_RBI0.6460.044
predicted_SLG0.4610.007
predicted_SO0.757-0.013
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.41), rates preserved: AVG=0.267 HR/AB=0.048

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.173
predicted_3B0.000-0.001
predicted_AB3.000-0.412
predicted_AVG0.3330.066
predicted_BB0.000-0.208
predicted_H1.0000.090
predicted_HR0.000-0.163
predicted_OBP0.3330.024
predicted_R1.0000.462
predicted_RBI1.0000.354
predicted_SLG0.333-0.128
predicted_SO1.0000.243
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 60
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-19.0006.0001.0000.0002.0007.0004.0001.0006.0000.31580.36360.68420.31580.10530.36840.05260.3158
last_100.2010-34.0009.0002.0000.0002.0009.0006.0002.0009.0000.26470.30770.50000.26470.05880.26470.05880.2647
season0.6060-201.00053.00010.0000.0007.00025.00028.00012.00043.0000.26370.31820.41790.26370.03480.12440.05970.2139
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1810
predicted_3B0.0020
predicted_AB3.5000
predicted_AVG0.2715
predicted_BB0.2110
predicted_H0.9500
predicted_HBP0.1000
predicted_HR0.1800
predicted_OBP0.3238
predicted_R0.5500
predicted_RBI0.6750
predicted_SLG0.4782
predicted_SO0.8450
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.16700.18100.1728model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB3.35003.50003.4122model_form_blend
predicted_AVG0.25700.27150.2630model_form_blend
predicted_BB0.20000.21100.2046model_form_blend
predicted_H0.82000.95000.8739model_form_blend
predicted_HBP-0.10000.1000form_only
predicted_HR0.14000.18000.1566model_form_blend
predicted_OBP0.32000.32380.3216model_form_blend
predicted_R0.46700.55000.5014model_form_blend
predicted_RBI0.55000.67500.6019model_form_blend
predicted_SLG0.43700.47820.4541model_form_blend
predicted_SO0.71700.84500.7701model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date180
Season rows before report date180
Report year2026
Profile rows used60
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H2
2B0
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.264

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP1
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI2
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder7
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedLF
gameID20260617_CHW@NYY
game_typefull
mlbID676609
playerID676609
playerNameJosé Caballero
posSS
startedTrue
startingPositionLF
teamNYY
teamID19
game_date2026-06-17
sl_k_percent19.5
sl_bb_percent5.5
sl_woba0.324
sl_xwoba0.289
sl_xba0.242
sl_xslg0.348
sl_sweet_spot_percent31.9
sl_barrel_batted_rate3.1
sl_hard_hit_percent25.8
sl_exit_velocity_avg83.6
sl_launch_angle_avg10.8
sl_whiff_percent25.4
sl_swing_percent49.0
Spencer Jones (682987) · BATTER · CF · Team NYY
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 35
All-history rows before 20260618: 35
System season_avg: 0.2390
Data season_avg (2026 season-to-date): 0.2340
Diff (system - data): 0.0050
System opponent_avg: 0.2390

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0561.0000.000Hitting_2B0.0290.0000.9711.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.6004.0003.000Hitting_AB2.6863.0001.3141.000
predicted_AVG0.2640.5000.333Hitting_AVG0.2340.3330.2660.167
predicted_BB0.3890.0000.000Hitting_BB0.3712.000-0.371-2.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.6902.0001.000Hitting_H0.6291.0001.3711.000
predicted_HR0.1400.0000.000Hitting_HR0.0571.000-0.057-1.000
predicted_OBP0.3340.5000.333Hitting_OBP0.3270.6000.173-0.100
predicted_R0.2221.0000.000Hitting_R0.1142.0000.886-1.000
predicted_RBI0.4401.0001.000Hitting_RBI0.3712.0000.629-1.000
predicted_SLG0.4310.7500.333Hitting_SLG0.3091.3330.441-0.583
predicted_SO1.1671.0001.000Hitting_SO1.2001.000-0.2000.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics11
Boosted Metrics8
Deboosted Metrics3
Better Metrics9
Worse Metrics2
Biggest Boostpredicted_AB: 2.6000 -> 4.0000 (boost 1.4000, better)
Biggest Deboostpredicted_BB: 0.3890 -> 0.0000 (deboost -0.3890, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend43131predicted_AB: 2.6000 -> 2.7604 (boost 0.1604, better)predicted_AVG: 0.2640 -> 0.2588 (deboost -0.0052, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot33030predicted_SLG: 0.4388 -> 0.4679 (boost 0.0291, better)-Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73443predicted_RBI: 0.4987 -> 1.0000 (boost 0.5013, better)predicted_BB: 0.4118 -> 0.0000 (deboost -0.4118, worse)AB rounded to 3 (raw=2.76), rates preserved: AVG=0.270 HR/AB=0.057
5consistency_constraints10101-predicted_R: 0.3106 -> 0.0000 (deboost -0.3106, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2698 -> 0.3330 (boost 0.0632, better)predicted_SLG: 0.4679 -> 0.3330 (deboost -0.1349, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference44040predicted_2B: 0.0000 -> 1.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.3330 -> 0.4679 (boost 0.1349, better)predicted_AVG: 0.3330 -> 0.2698 (deboost -0.0632, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "682987",
  "player_name": "Spencer Jones",
  "position": "CF",
  "team": "NYY",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.056,
        "predicted_3B": 0.0,
        "predicted_AB": 2.6,
        "predicted_AVG": 0.264,
        "predicted_BB": 0.389,
        "predicted_H": 0.69,
        "predicted_HR": 0.14,
        "predicted_OBP": 0.334,
        "predicted_R": 0.222,
        "predicted_RBI": 0.44,
        "predicted_SLG": 0.431,
        "predicted_SO": 1.167
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0694,
        "predicted_3B": 0.0014,
        "predicted_AB": 2.7604,
        "predicted_AVG": 0.2588,
        "predicted_BB": 0.4052,
        "predicted_H": 0.7151,
        "predicted_HBP": 0.01,
        "predicted_HR": 0.1521,
        "predicted_OBP": 0.3375,
        "predicted_R": 0.2895,
        "predicted_RBI": 0.4648,
        "predicted_SLG": 0.4388,
        "predicted_SO": 1.1339
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.056,
          "after": 0.0694,
          "delta": 0.0134,
          "percent_delta": 0.2393,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0014,
          "delta": 0.0014,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.6,
          "after": 2.7604,
          "delta": 0.1604,
          "percent_delta": 0.0617,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.264,
          "after": 0.2588,
          "delta": -0.0052,
          "percent_delta": -0.0197,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.389,
          "after": 0.4052,
          "delta": 0.0162,
          "percent_delta": 0.0416,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.69,
          "after": 0.7151,
          "delta": 0.0251,
          "percent_delta": 0.0364,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.14,
          "after": 0.1521,
          "delta": 0.0121,
          "percent_delta": 0.0864,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.334,
          "after": 0.3375,
          "delta": 0.0035,
          "percent_delta": 0.0105,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.222,
          "after": 0.2895,
          "delta": 0.0675,
          "percent_delta": 0.3041,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.44,
          "after": 0.4648,
          "delta": 0.0248,
          "percent_delta": 0.0564,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.431,
          "after": 0.4388,
          "delta": 0.0078,
          "percent_delta": 0.0181,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.167,
          "after": 1.1339,
          "delta": -0.0331,
          "percent_delta": -0.0284,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.6,
          "after": 2.7604,
          "delta": 0.1604,
          "percent_delta": 0.0617,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.264,
          "after": 0.2588,
          "delta": -0.0052,
          "percent_delta": -0.0197,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 18
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0694,
        "predicted_3B": 0.0014,
        "predicted_AB": 2.7604,
        "predicted_AVG": 0.2698,
        "predicted_BB": 0.4118,
        "predicted_H": 0.7448,
        "predicted_HBP": 0.01,
        "predicted_HR": 0.1582,
        "predicted_OBP": 0.3646,
        "predicted_R": 0.3106,
        "predicted_RBI": 0.4987,
        "predicted_SLG": 0.4679,
        "predicted_SO": 1.1153
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0694,
          "after": 0.0694,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0014,
          "after": 0.0014,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.7604,
          "after": 2.7604,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2588,
          "after": 0.2698,
          "delta": 0.011,
          "percent_delta": 0.0425,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4052,
          "after": 0.4118,
          "delta": 0.0066,
          "percent_delta": 0.0163,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7151,
          "after": 0.7448,
          "delta": 0.0297,
          "percent_delta": 0.0415,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.01,
          "after": 0.01,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1521,
          "after": 0.1582,
          "delta": 0.0061,
          "percent_delta": 0.0401,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3375,
          "after": 0.3646,
          "delta": 0.0271,
          "percent_delta": 0.0803,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.2895,
          "after": 0.3106,
          "delta": 0.0211,
          "percent_delta": 0.0729,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4648,
          "after": 0.4987,
          "delta": 0.0339,
          "percent_delta": 0.0729,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4388,
          "after": 0.4679,
          "delta": 0.0291,
          "percent_delta": 0.0663,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1339,
          "after": 1.1153,
          "delta": -0.0186,
          "percent_delta": -0.0164,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.4388,
          "after": 0.4679,
          "delta": 0.0291,
          "percent_delta": 0.0663,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.76), rates preserved: AVG=0.270 HR/AB=0.057",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0694,
          "after": 0.0,
          "delta": -0.0694,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0014,
          "after": 0.0,
          "delta": -0.0014,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.7604,
          "after": 3.0,
          "delta": 0.2396,
          "percent_delta": 0.0868,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4118,
          "after": 0.0,
          "delta": -0.4118,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7448,
          "after": 1.0,
          "delta": 0.2552,
          "percent_delta": 0.3426,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.01,
          "after": 0.0,
          "delta": -0.01,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1582,
          "after": 0.0,
          "delta": -0.1582,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4987,
          "after": 1.0,
          "delta": 0.5013,
          "percent_delta": 1.0052,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1153,
          "after": 1.0,
          "delta": -0.1153,
          "percent_delta": -0.1034,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 4,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.4987,
          "after": 1.0,
          "delta": 0.5013,
          "percent_delta": 1.0052,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.4118,
          "after": 0.0,
          "delta": -0.4118,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3106,
          "after": 0.0,
          "delta": -0.3106,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3106,
          "after": 0.0,
          "delta": -0.3106,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2698,
          "after": 0.333,
          "delta": 0.0632,
          "percent_delta": 0.2342,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3646,
          "after": 0.333,
          "delta": -0.0316,
          "percent_delta": -0.0867,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4679,
          "after": 0.333,
          "delta": -0.1349,
          "percent_delta": -0.2883,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2698,
          "after": 0.333,
          "delta": 0.0632,
          "percent_delta": 0.2342,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4679,
          "after": 0.333,
          "delta": -0.1349,
          "percent_delta": -0.2883,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 4,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2698,
        "predicted_BB": 0.0,
        "predicted_CF": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3646,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4679,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2698,
          "delta": -0.0632,
          "percent_delta": -0.1898,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3646,
          "delta": 0.0316,
          "percent_delta": 0.0949,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4679,
          "delta": 0.1349,
          "percent_delta": 0.4051,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4679,
          "delta": 0.1349,
          "percent_delta": 0.4051,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2698,
          "delta": -0.0632,
          "percent_delta": -0.1898,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.056,
        "after": 1.0,
        "delta": 0.944,
        "percent_delta": 16.8571,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.6,
        "after": 4.0,
        "delta": 1.4,
        "percent_delta": 0.5385,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.264,
        "after": 0.2698,
        "delta": 0.0058,
        "percent_delta": 0.022,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.389,
        "after": 0.0,
        "delta": -0.389,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.69,
        "after": 2.0,
        "delta": 1.31,
        "percent_delta": 1.8986,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.14,
        "after": 0.0,
        "delta": -0.14,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.334,
        "after": 0.3646,
        "delta": 0.0306,
        "percent_delta": 0.0916,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.222,
        "after": 1.0,
        "delta": 0.778,
        "percent_delta": 3.5045,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.44,
        "after": 1.0,
        "delta": 0.56,
        "percent_delta": 1.2727,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.431,
        "after": 0.4679,
        "delta": 0.0369,
        "percent_delta": 0.0856,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.167,
        "after": 1.0,
        "delta": -0.167,
        "percent_delta": -0.1431,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 8,
      "deboosted_metrics": 3,
      "better_metrics": 9,
      "worse_metrics": 2,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 2.6,
        "after": 4.0,
        "delta": 1.4,
        "percent_delta": 0.5385,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_BB",
        "before": 0.389,
        "after": 0.0,
        "delta": -0.389,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.056-
predicted_3B0.000-
predicted_AB2.600-
predicted_AVG0.264-
predicted_BB0.389-
predicted_H0.690-
predicted_HR0.140-
predicted_OBP0.334-
predicted_R0.222-
predicted_RBI0.440-
predicted_SLG0.431-
predicted_SO1.167-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.0690.013
predicted_3B0.0010.001
predicted_AB2.7600.160
predicted_AVG0.259-0.005
predicted_BB0.4050.016
predicted_H0.7150.025
predicted_HBP0.010-
predicted_HR0.1520.012
predicted_OBP0.3380.004
predicted_R0.2890.067
predicted_RBI0.4650.025
predicted_SLG0.4390.008
predicted_SO1.134-0.033
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0690.000
predicted_3B0.0010.000
predicted_AB2.7600.000
predicted_AVG0.2700.011
predicted_BB0.4120.007
predicted_H0.7450.030
predicted_HBP0.0100.000
predicted_HR0.1580.006
predicted_OBP0.3650.027
predicted_R0.3110.021
predicted_RBI0.4990.034
predicted_SLG0.4680.029
predicted_SO1.115-0.019
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.76), rates preserved: AVG=0.270 HR/AB=0.057

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.069
predicted_3B0.000-0.001
predicted_AB3.0000.240
predicted_AVG0.3330.063
predicted_BB0.000-0.412
predicted_H1.0000.255
predicted_HR0.000-0.158
predicted_OBP0.333-0.032
predicted_R0.000-0.311
predicted_RBI1.0000.501
predicted_SLG0.333-0.135
predicted_SO1.000-0.115
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI1.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 18
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-14.0003.0000.0000.0002.0004.0004.0004.0005.0000.21430.38890.64290.21430.14290.28570.28570.3571
last_100.2010-26.0008.0001.0000.0002.0005.0004.0004.00010.0000.30770.40000.57690.30770.07690.19230.15380.3846
season0.6018-46.00011.0001.0000.0002.0007.0004.0007.00021.0000.23910.33960.39130.23910.04350.15220.15220.4565
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0950
predicted_3B0.0040
predicted_AB3.0660
predicted_AVG0.2488
predicted_BB0.4360
predicted_H0.7630
predicted_HBP0.0100
predicted_HR0.1750
predicted_OBP0.3441
predicted_R0.4180
predicted_RBI0.5120
predicted_SLG0.4538
predicted_SO1.0710
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.05600.09500.0694model_form_blend
predicted_3B0.00000.00400.0014model_form_blend
predicted_AB2.60003.06602.7604model_form_blend
predicted_AVG0.26400.24880.2588model_form_blend
predicted_BB0.38900.43600.4052model_form_blend
predicted_H0.69000.76300.7151model_form_blend
predicted_HBP-0.01000.0100form_only
predicted_HR0.14000.17500.1521model_form_blend
predicted_OBP0.33400.34410.3375model_form_blend
predicted_R0.22200.41800.2895model_form_blend
predicted_RBI0.44000.51200.4648model_form_blend
predicted_SLG0.43100.45380.4388model_form_blend
predicted_SO1.16701.07101.1339model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date35
Season rows before report date35
Report year2026
Profile rows used18
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H2
2B1
3B0
HR0
R1
RBI1
BB0
SO1
SF0
HBP0
season_avg0.239

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB2
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R2
Hitting_RBI2
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB4
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedCF
gameID20260616_CHW@NYY
game_typefull
mlbID682987
playerID682987
playerNameSpencer Jones
posCF
startedTrue
startingPositionCF
teamNYY
teamID19
game_date2026-06-16
sl_k_percent39.6
sl_bb_percent13.2
sl_woba0.329
sl_xwoba0.287
sl_xba0.189
sl_xslg0.337
sl_sweet_spot_percent28.0
sl_barrel_batted_rate4.2
sl_hard_hit_percent75.0
sl_exit_velocity_avg97.5
sl_launch_angle_avg15.1
sl_whiff_percent37.1
sl_swing_percent52.8
Ryan McMahon (641857) · BATTER · 3B · Team NYY
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 171
All-history rows before 20260618: 171
System season_avg: 0.2090
Data season_avg (2026 season-to-date): 0.2018
Diff (system - data): 0.0072
System opponent_avg: 0.1670

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0670.0000.000Hitting_2B0.0940.000-0.0940.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.9504.0003.000Hitting_AB3.1871.0000.8133.000
predicted_AVG0.2400.0000.333Hitting_AVG0.2020.000-0.2020.000
predicted_BB0.2330.0000.000Hitting_BB0.2750.000-0.2750.000
predicted_CS-0.0000.000BaseRunning_CS0.0060.000-0.0060.000
predicted_H0.6000.0001.000Hitting_H0.6430.000-0.6430.000
predicted_HR0.1000.0000.000Hitting_HR0.1110.000-0.1110.000
predicted_OBP0.2810.0000.333Hitting_OBP0.2650.000-0.2650.000
predicted_R0.2670.0000.000Hitting_R0.3270.000-0.3270.000
predicted_RBI0.3400.0000.000Hitting_RBI0.4040.000-0.4040.000
predicted_SLG0.3390.0000.333Hitting_SLG0.3360.000-0.3360.000
predicted_SO0.9833.0001.000Hitting_SO1.0580.0001.9423.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics2
Deboosted Metrics9
Better Metrics1
Worse Metrics10
Biggest Boostpredicted_SO: 0.9830 -> 3.0000 (boost 2.0170, worse)
Biggest Deboostpredicted_H: 0.6000 -> 0.0000 (deboost -0.6000, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend30303-predicted_AVG: 0.2400 -> 0.2212 (deboost -0.0188, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot21111predicted_SLG: 0.3264 -> 0.3323 (boost 0.0059, better)predicted_AVG: 0.2212 -> 0.2079 (deboost -0.0133, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62415predicted_H: 0.6151 -> 1.0000 (boost 0.3849, better)predicted_RBI: 0.3652 -> 0.0000 (deboost -0.3652, worse)AB rounded to 3 (raw=2.96), rates preserved: AVG=0.208 HR/AB=0.034
5consistency_constraints10101-predicted_R: 0.2614 -> 0.0000 (deboost -0.2614, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context22020predicted_AVG: 0.2079 -> 0.3330 (boost 0.1251, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference32112predicted_SO: 1.0000 -> 3.0000 (boost 2.0000, worse)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final20202-predicted_AVG: 0.3330 -> 0.2079 (deboost -0.1251, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "641857",
  "player_name": "Ryan McMahon",
  "position": "3B",
  "team": "NYY",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.067,
        "predicted_3B": 0.0,
        "predicted_AB": 2.95,
        "predicted_AVG": 0.24,
        "predicted_BB": 0.233,
        "predicted_H": 0.6,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.281,
        "predicted_R": 0.267,
        "predicted_RBI": 0.34,
        "predicted_SLG": 0.339,
        "predicted_SO": 0.983
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0621,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.9582,
        "predicted_AVG": 0.2212,
        "predicted_BB": 0.256,
        "predicted_H": 0.5906,
        "predicted_HBP": 0.004,
        "predicted_HR": 0.0975,
        "predicted_OBP": 0.2754,
        "predicted_R": 0.2436,
        "predicted_RBI": 0.3404,
        "predicted_SLG": 0.3264,
        "predicted_SO": 0.9461
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.067,
          "after": 0.0621,
          "delta": -0.0049,
          "percent_delta": -0.0731,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.95,
          "after": 2.9582,
          "delta": 0.0082,
          "percent_delta": 0.0028,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.24,
          "after": 0.2212,
          "delta": -0.0188,
          "percent_delta": -0.0783,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.233,
          "after": 0.256,
          "delta": 0.023,
          "percent_delta": 0.0987,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6,
          "after": 0.5906,
          "delta": -0.0094,
          "percent_delta": -0.0157,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.0975,
          "delta": -0.0025,
          "percent_delta": -0.025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.281,
          "after": 0.2754,
          "delta": -0.0056,
          "percent_delta": -0.0199,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.267,
          "after": 0.2436,
          "delta": -0.0234,
          "percent_delta": -0.0876,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.34,
          "after": 0.3404,
          "delta": 0.0004,
          "percent_delta": 0.0012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.339,
          "after": 0.3264,
          "delta": -0.0126,
          "percent_delta": -0.0372,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.983,
          "after": 0.9461,
          "delta": -0.0369,
          "percent_delta": -0.0375,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.24,
          "after": 0.2212,
          "delta": -0.0188,
          "percent_delta": -0.0783,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 60
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0621,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.9582,
        "predicted_AVG": 0.2079,
        "predicted_BB": 0.2602,
        "predicted_H": 0.6151,
        "predicted_HBP": 0.004,
        "predicted_HR": 0.1014,
        "predicted_OBP": 0.272,
        "predicted_R": 0.2614,
        "predicted_RBI": 0.3652,
        "predicted_SLG": 0.3323,
        "predicted_SO": 0.9306
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0621,
          "after": 0.0621,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9582,
          "after": 2.9582,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2212,
          "after": 0.2079,
          "delta": -0.0133,
          "percent_delta": -0.0601,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.256,
          "after": 0.2602,
          "delta": 0.0042,
          "percent_delta": 0.0164,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.5906,
          "after": 0.6151,
          "delta": 0.0245,
          "percent_delta": 0.0415,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.004,
          "after": 0.004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0975,
          "after": 0.1014,
          "delta": 0.0039,
          "percent_delta": 0.04,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2754,
          "after": 0.272,
          "delta": -0.0034,
          "percent_delta": -0.0123,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.2436,
          "after": 0.2614,
          "delta": 0.0178,
          "percent_delta": 0.0731,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3404,
          "after": 0.3652,
          "delta": 0.0248,
          "percent_delta": 0.0729,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3264,
          "after": 0.3323,
          "delta": 0.0059,
          "percent_delta": 0.0181,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9461,
          "after": 0.9306,
          "delta": -0.0155,
          "percent_delta": -0.0164,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.3264,
          "after": 0.3323,
          "delta": 0.0059,
          "percent_delta": 0.0181,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2212,
          "after": 0.2079,
          "delta": -0.0133,
          "percent_delta": -0.0601,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.96), rates preserved: AVG=0.208 HR/AB=0.034",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0621,
          "after": 0.0,
          "delta": -0.0621,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9582,
          "after": 3.0,
          "delta": 0.0418,
          "percent_delta": 0.0141,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2602,
          "after": 0.0,
          "delta": -0.2602,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6151,
          "after": 1.0,
          "delta": 0.3849,
          "percent_delta": 0.6258,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.004,
          "after": 0.0,
          "delta": -0.004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1014,
          "after": 0.0,
          "delta": -0.1014,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3652,
          "after": 0.0,
          "delta": -0.3652,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9306,
          "after": 1.0,
          "delta": 0.0694,
          "percent_delta": 0.0746,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.6151,
          "after": 1.0,
          "delta": 0.3849,
          "percent_delta": 0.6258,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3652,
          "after": 0.0,
          "delta": -0.3652,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.2614,
          "after": 0.0,
          "delta": -0.2614,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.2614,
          "after": 0.0,
          "delta": -0.2614,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2079,
          "after": 0.333,
          "delta": 0.1251,
          "percent_delta": 0.6017,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.272,
          "after": 0.333,
          "delta": 0.061,
          "percent_delta": 0.2243,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3323,
          "after": 0.333,
          "delta": 0.0007,
          "percent_delta": 0.0021,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2079,
          "after": 0.333,
          "delta": 0.1251,
          "percent_delta": 0.6017,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2079,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.272,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3323,
        "predicted_SO": 3.0,
        "predicted_TB": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2079,
          "delta": -0.1251,
          "percent_delta": -0.3756,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.272,
          "delta": -0.061,
          "percent_delta": -0.1833,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3323,
          "delta": -0.0007,
          "percent_delta": -0.0021,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2079,
          "delta": -0.1251,
          "percent_delta": -0.3756,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.067,
        "after": 0.0,
        "delta": -0.067,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.95,
        "after": 4.0,
        "delta": 1.05,
        "percent_delta": 0.3559,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.24,
        "after": 0.2079,
        "delta": -0.0321,
        "percent_delta": -0.1337,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.233,
        "after": 0.0,
        "delta": -0.233,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.6,
        "after": 0.0,
        "delta": -0.6,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.281,
        "after": 0.272,
        "delta": -0.009,
        "percent_delta": -0.032,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.267,
        "after": 0.0,
        "delta": -0.267,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.34,
        "after": 0.0,
        "delta": -0.34,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.339,
        "after": 0.3323,
        "delta": -0.0067,
        "percent_delta": -0.0198,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.983,
        "after": 3.0,
        "delta": 2.017,
        "percent_delta": 2.0519,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 2,
      "deboosted_metrics": 9,
      "better_metrics": 1,
      "worse_metrics": 10,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.983,
        "after": 3.0,
        "delta": 2.017,
        "percent_delta": 2.0519,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.6,
        "after": 0.0,
        "delta": -0.6,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.067-
predicted_3B0.000-
predicted_AB2.950-
predicted_AVG0.240-
predicted_BB0.233-
predicted_H0.600-
predicted_HR0.100-
predicted_OBP0.281-
predicted_R0.267-
predicted_RBI0.340-
predicted_SLG0.339-
predicted_SO0.983-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.062-0.005
predicted_3B0.0010.001
predicted_AB2.9580.008
predicted_AVG0.221-0.019
predicted_BB0.2560.023
predicted_H0.591-0.009
predicted_HBP0.004-
predicted_HR0.098-0.003
predicted_OBP0.275-0.006
predicted_R0.244-0.023
predicted_RBI0.3400.000
predicted_SLG0.326-0.013
predicted_SO0.946-0.037
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0620.000
predicted_3B0.0010.000
predicted_AB2.9580.000
predicted_AVG0.208-0.013
predicted_BB0.2600.004
predicted_H0.6150.024
predicted_HBP0.0040.000
predicted_HR0.1010.004
predicted_OBP0.272-0.003
predicted_R0.2610.018
predicted_RBI0.3650.025
predicted_SLG0.3320.006
predicted_SO0.931-0.016
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.96), rates preserved: AVG=0.208 HR/AB=0.034

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.062
predicted_3B0.000-0.001
predicted_AB3.0000.042
predicted_AVG0.3330.125
predicted_BB0.000-0.260
predicted_H1.0000.385
predicted_HR0.000-0.101
predicted_OBP0.3330.061
predicted_R0.000-0.261
predicted_RBI0.000-0.365
predicted_SLG0.3330.001
predicted_SO1.0000.069
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO3.0002.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 60
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-13.0001.0000.0000.0000.0001.0000.0002.0004.0000.07690.20000.07690.07690.00000.07690.15380.3077
last_100.2010-27.0006.0000.0000.0001.0003.0001.0003.0007.0000.22220.30000.33330.22220.03700.11110.11110.2593
season0.6060-177.00037.0004.0000.0007.00022.00016.00014.00059.0000.20900.26700.35030.20900.03960.12430.07910.3333
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0550
predicted_3B0.0020
predicted_AB2.9700
predicted_AVG0.1941
predicted_BB0.2890
predicted_H0.5770
predicted_HBP0.0040
predicted_HR0.0940
predicted_OBP0.2674
predicted_R0.2100
predicted_RBI0.3410
predicted_SLG0.3082
predicted_SO0.8930
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.06700.05500.0621model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB2.95002.97002.9582model_form_blend
predicted_AVG0.24000.19410.2212model_form_blend
predicted_BB0.23300.28900.2560model_form_blend
predicted_H0.60000.57700.5906model_form_blend
predicted_HBP-0.00400.0040form_only
predicted_HR0.10000.09400.0975model_form_blend
predicted_OBP0.28100.26740.2754model_form_blend
predicted_R0.26700.21000.2436model_form_blend
predicted_RBI0.34000.34100.3404model_form_blend
predicted_SLG0.33900.30820.3264model_form_blend
predicted_SO0.98300.89300.9461model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date171
Season rows before report date171
Report year2026
Profile rows used60
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO3
SF0
HBP0
season_avg0.209

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB1
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder3
Hitting_substitutionOrder1
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260617_CHW@NYY
game_typeshort
mlbID641857
playerID641857
playerNameRyan McMahon
pos3B
startedFalse
startingPosition3B
teamNYY
teamID19
game_date2026-06-17
sl_k_percent30.6
sl_bb_percent7.8
sl_woba0.277
sl_xwoba0.297
sl_xba0.228
sl_xslg0.389
sl_sweet_spot_percent29.4
sl_barrel_batted_rate10.3
sl_hard_hit_percent49.2
sl_exit_velocity_avg90.6
sl_launch_angle_avg12.0
sl_whiff_percent32.2
sl_swing_percent46.1
J.C. Escarra (641555) · BATTER · C · Team NYY
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 72
All-history rows before 20260618: 72
System season_avg: 0.1950
Data season_avg (2026 season-to-date): 0.2227
Diff (system - data): -0.0277
System opponent_avg: 0.1950
System season_avg diverges from 2026 season-to-date by -0.0277. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2002.0000.000Hitting_2B0.1941.0001.8061.000
predicted_3B0.0400.0000.000Hitting_3B0.0560.000-0.0560.000
predicted_AB3.0803.0003.000Hitting_AB3.1814.000-0.181-1.000
predicted_AVG0.2540.6670.333Hitting_AVG0.2230.5000.4440.167
predicted_BB0.2001.0000.000Hitting_BB0.2361.0000.7640.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.6102.0001.000Hitting_H0.7082.0001.2920.000
predicted_HR0.0600.0000.000Hitting_HR0.0000.0000.0000.000
predicted_OBP0.2850.7500.333Hitting_OBP0.2720.6000.4780.150
predicted_R0.2801.0000.000Hitting_R0.2782.0000.722-1.000
predicted_RBI0.2701.0000.000Hitting_RBI0.3890.0000.6111.000
predicted_SLG0.3481.3330.333Hitting_SLG0.3190.7501.0150.583
predicted_SO0.7200.0001.000Hitting_SO0.7780.000-0.7780.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics11
Boosted Metrics6
Deboosted Metrics5
Better Metrics7
Worse Metrics4
Biggest Boostpredicted_2B: 0.2000 -> 2.0000 (boost 1.8000, better)
Biggest Deboostpredicted_SO: 0.7200 -> 0.0000 (deboost -0.7200, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend21111predicted_AB: 3.0800 -> 3.1545 (boost 0.0745, better)predicted_AVG: 0.2540 -> 0.2431 (deboost -0.0109, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot31212predicted_SLG: 0.3436 -> 0.3536 (boost 0.0100, better)predicted_AVG: 0.2431 -> 0.2170 (deboost -0.0261, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_H: 0.6846 -> 1.0000 (boost 0.3154, better)predicted_RBI: 0.2860 -> 0.0000 (deboost -0.2860, worse)AB rounded to 3 (raw=3.15), rates preserved: AVG=0.217 HR/AB=0.016
5consistency_constraints10101-predicted_R: 0.3431 -> 0.0000 (deboost -0.3431, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2170 -> 0.3330 (boost 0.1160, better)predicted_SLG: 0.3536 -> 0.3330 (deboost -0.0206, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference65160predicted_2B: 0.0000 -> 2.0000 (boost 2.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.3536 (boost 0.0206, better)predicted_AVG: 0.3330 -> 0.2170 (deboost -0.1160, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "641555",
  "player_name": "J.C. Escarra",
  "position": "C",
  "team": "NYY",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.2,
        "predicted_3B": 0.04,
        "predicted_AB": 3.08,
        "predicted_AVG": 0.254,
        "predicted_BB": 0.2,
        "predicted_H": 0.61,
        "predicted_HR": 0.06,
        "predicted_OBP": 0.285,
        "predicted_R": 0.28,
        "predicted_RBI": 0.27,
        "predicted_SLG": 0.348,
        "predicted_SO": 0.72
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2119,
        "predicted_3B": 0.0333,
        "predicted_AB": 3.1545,
        "predicted_AVG": 0.2431,
        "predicted_BB": 0.2089,
        "predicted_H": 0.6573,
        "predicted_HBP": 0.008,
        "predicted_HR": 0.0488,
        "predicted_OBP": 0.281,
        "predicted_R": 0.3198,
        "predicted_RBI": 0.2666,
        "predicted_SLG": 0.3436,
        "predicted_SO": 0.7256
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2,
          "after": 0.2119,
          "delta": 0.0119,
          "percent_delta": 0.0595,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.04,
          "after": 0.0333,
          "delta": -0.0067,
          "percent_delta": -0.1675,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.08,
          "after": 3.1545,
          "delta": 0.0745,
          "percent_delta": 0.0242,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.254,
          "after": 0.2431,
          "delta": -0.0109,
          "percent_delta": -0.0429,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2,
          "after": 0.2089,
          "delta": 0.0089,
          "percent_delta": 0.0445,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.61,
          "after": 0.6573,
          "delta": 0.0473,
          "percent_delta": 0.0775,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.06,
          "after": 0.0488,
          "delta": -0.0112,
          "percent_delta": -0.1867,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.285,
          "after": 0.281,
          "delta": -0.004,
          "percent_delta": -0.014,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.28,
          "after": 0.3198,
          "delta": 0.0398,
          "percent_delta": 0.1421,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.27,
          "after": 0.2666,
          "delta": -0.0034,
          "percent_delta": -0.0126,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.348,
          "after": 0.3436,
          "delta": -0.0044,
          "percent_delta": -0.0126,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.72,
          "after": 0.7256,
          "delta": 0.0056,
          "percent_delta": 0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.08,
          "after": 3.1545,
          "delta": 0.0745,
          "percent_delta": 0.0242,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.254,
          "after": 0.2431,
          "delta": -0.0109,
          "percent_delta": -0.0429,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 25
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2119,
        "predicted_3B": 0.0333,
        "predicted_AB": 3.1545,
        "predicted_AVG": 0.217,
        "predicted_BB": 0.2123,
        "predicted_H": 0.6846,
        "predicted_HBP": 0.008,
        "predicted_HR": 0.0508,
        "predicted_OBP": 0.2664,
        "predicted_R": 0.3431,
        "predicted_RBI": 0.286,
        "predicted_SLG": 0.3536,
        "predicted_SO": 0.7137
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2119,
          "after": 0.2119,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0333,
          "after": 0.0333,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.1545,
          "after": 3.1545,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2431,
          "after": 0.217,
          "delta": -0.0261,
          "percent_delta": -0.1074,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2089,
          "after": 0.2123,
          "delta": 0.0034,
          "percent_delta": 0.0163,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6573,
          "after": 0.6846,
          "delta": 0.0273,
          "percent_delta": 0.0415,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.008,
          "after": 0.008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0488,
          "after": 0.0508,
          "delta": 0.002,
          "percent_delta": 0.041,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.281,
          "after": 0.2664,
          "delta": -0.0146,
          "percent_delta": -0.052,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3198,
          "after": 0.3431,
          "delta": 0.0233,
          "percent_delta": 0.0729,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2666,
          "after": 0.286,
          "delta": 0.0194,
          "percent_delta": 0.0728,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3436,
          "after": 0.3536,
          "delta": 0.01,
          "percent_delta": 0.0291,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7256,
          "after": 0.7137,
          "delta": -0.0119,
          "percent_delta": -0.0164,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.3436,
          "after": 0.3536,
          "delta": 0.01,
          "percent_delta": 0.0291,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2431,
          "after": 0.217,
          "delta": -0.0261,
          "percent_delta": -0.1074,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.15), rates preserved: AVG=0.217 HR/AB=0.016",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2119,
          "after": 0.0,
          "delta": -0.2119,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0333,
          "after": 0.0,
          "delta": -0.0333,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.1545,
          "after": 3.0,
          "delta": -0.1545,
          "percent_delta": -0.049,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2123,
          "after": 0.0,
          "delta": -0.2123,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6846,
          "after": 1.0,
          "delta": 0.3154,
          "percent_delta": 0.4607,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.008,
          "after": 0.0,
          "delta": -0.008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0508,
          "after": 0.0,
          "delta": -0.0508,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.286,
          "after": 0.0,
          "delta": -0.286,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7137,
          "after": 1.0,
          "delta": 0.2863,
          "percent_delta": 0.4011,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.6846,
          "after": 1.0,
          "delta": 0.3154,
          "percent_delta": 0.4607,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.286,
          "after": 0.0,
          "delta": -0.286,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3431,
          "after": 0.0,
          "delta": -0.3431,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3431,
          "after": 0.0,
          "delta": -0.3431,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.217,
          "after": 0.333,
          "delta": 0.116,
          "percent_delta": 0.5346,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2664,
          "after": 0.333,
          "delta": 0.0666,
          "percent_delta": 0.25,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3536,
          "after": 0.333,
          "delta": -0.0206,
          "percent_delta": -0.0583,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.217,
          "after": 0.333,
          "delta": 0.116,
          "percent_delta": 0.5346,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3536,
          "after": 0.333,
          "delta": -0.0206,
          "percent_delta": -0.0583,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 2.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 5,
        "deboosted_metrics": 1,
        "better_metrics": 6,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 2.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.217,
        "predicted_BB": 1.0,
        "predicted_C": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2664,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3536,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.217,
          "delta": -0.116,
          "percent_delta": -0.3483,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2664,
          "delta": -0.0666,
          "percent_delta": -0.2,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3536,
          "delta": 0.0206,
          "percent_delta": 0.0618,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3536,
          "delta": 0.0206,
          "percent_delta": 0.0618,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.217,
          "delta": -0.116,
          "percent_delta": -0.3483,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.2,
        "after": 2.0,
        "delta": 1.8,
        "percent_delta": 9.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.04,
        "after": 0.0,
        "delta": -0.04,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.08,
        "after": 3.0,
        "delta": -0.08,
        "percent_delta": -0.026,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.254,
        "after": 0.217,
        "delta": -0.037,
        "percent_delta": -0.1457,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.2,
        "after": 1.0,
        "delta": 0.8,
        "percent_delta": 4.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.61,
        "after": 2.0,
        "delta": 1.39,
        "percent_delta": 2.2787,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.06,
        "after": 0.0,
        "delta": -0.06,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.285,
        "after": 0.2664,
        "delta": -0.0186,
        "percent_delta": -0.0653,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.28,
        "after": 1.0,
        "delta": 0.72,
        "percent_delta": 2.5714,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.27,
        "after": 1.0,
        "delta": 0.73,
        "percent_delta": 2.7037,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.348,
        "after": 0.3536,
        "delta": 0.0056,
        "percent_delta": 0.0161,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.72,
        "after": 0.0,
        "delta": -0.72,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 6,
      "deboosted_metrics": 5,
      "better_metrics": 7,
      "worse_metrics": 4,
      "biggest_boost": {
        "metric": "predicted_2B",
        "before": 0.2,
        "after": 2.0,
        "delta": 1.8,
        "percent_delta": 9.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.72,
        "after": 0.0,
        "delta": -0.72,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.200-
predicted_3B0.040-
predicted_AB3.080-
predicted_AVG0.254-
predicted_BB0.200-
predicted_H0.610-
predicted_HR0.060-
predicted_OBP0.285-
predicted_R0.280-
predicted_RBI0.270-
predicted_SLG0.348-
predicted_SO0.720-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2120.012
predicted_3B0.033-0.007
predicted_AB3.1550.075
predicted_AVG0.243-0.011
predicted_BB0.2090.009
predicted_H0.6570.047
predicted_HBP0.008-
predicted_HR0.049-0.011
predicted_OBP0.281-0.004
predicted_R0.3200.040
predicted_RBI0.267-0.003
predicted_SLG0.344-0.004
predicted_SO0.7260.006
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2120.000
predicted_3B0.0330.000
predicted_AB3.1550.000
predicted_AVG0.217-0.026
predicted_BB0.2120.003
predicted_H0.6850.027
predicted_HBP0.0080.000
predicted_HR0.0510.002
predicted_OBP0.266-0.015
predicted_R0.3430.023
predicted_RBI0.2860.019
predicted_SLG0.3540.010
predicted_SO0.714-0.012
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.15), rates preserved: AVG=0.217 HR/AB=0.016

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.212
predicted_3B0.000-0.033
predicted_AB3.000-0.155
predicted_AVG0.3330.116
predicted_BB0.000-0.212
predicted_H1.0000.315
predicted_HR0.000-0.051
predicted_OBP0.3330.067
predicted_R0.000-0.343
predicted_RBI0.000-0.286
predicted_SLG0.333-0.021
predicted_SO1.0000.286
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B2.0002.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 25
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-15.0004.0002.0000.0000.0000.0003.0001.0003.0000.26670.31250.40000.26670.00000.00000.06670.2000
last_100.2010-31.0007.0002.0000.0000.0001.0003.0002.0007.0000.22580.26470.29030.22580.00000.03230.06450.2258
season0.6025-77.00015.0005.0001.0000.0007.0007.0005.00018.0000.19480.24100.28570.19480.00000.09090.06490.2338
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2320
predicted_3B0.0220
predicted_AB3.2800
predicted_AVG0.2247
predicted_BB0.2240
predicted_H0.7370
predicted_HBP0.0080
predicted_HR0.0300
predicted_OBP0.2742
predicted_R0.3870
predicted_RBI0.2610
predicted_SLG0.3361
predicted_SO0.7350
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.20000.23200.2119model_form_blend
predicted_3B0.04000.02200.0333model_form_blend
predicted_AB3.08003.28003.1545model_form_blend
predicted_AVG0.25400.22470.2431model_form_blend
predicted_BB0.20000.22400.2089model_form_blend
predicted_H0.61000.73700.6573model_form_blend
predicted_HBP-0.00800.0080form_only
predicted_HR0.06000.03000.0488model_form_blend
predicted_OBP0.28500.27420.2810model_form_blend
predicted_R0.28000.38700.3198model_form_blend
predicted_RBI0.27000.26100.2666model_form_blend
predicted_SLG0.34800.33610.3436model_form_blend
predicted_SO0.72000.73500.7256model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date72
Season rows before report date72
Report year2026
Profile rows used25
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H2
2B2
3B0
HR0
R1
RBI1
BB1
SO0
SF0
HBP0
season_avg0.195

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB4
Hitting_AVG0.5
Hitting_BB1
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R2
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB3
Hitting_battingOrder8
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedC
gameID20260616_CHW@NYY
game_typefull
mlbID641555
playerID641555
playerNameJ.C. Escarra
posC
startedTrue
startingPositionC
teamNYY
teamID19
game_date2026-06-16
sl_k_percent21.4
sl_bb_percent7.1
sl_woba0.24
sl_xwoba0.261
sl_xba0.208
sl_xslg0.305
sl_sweet_spot_percent28.3
sl_barrel_batted_rate3.4
sl_hard_hit_percent33.3
sl_exit_velocity_avg88.7
sl_launch_angle_avg8.4
sl_whiff_percent29.7
sl_swing_percent45.0
Ryan Weathers (677960) · PITCHER · Starter · Team NYY
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 13
All-history rows before 20260618: 13

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB2.0002.0002.000Pitching_BB1.6151.0000.3851.000
predicted_ER4.0004.0004.000Pitching_ER2.7696.0001.231-2.000
predicted_H6.0006.0006.000Pitching_H5.0775.0000.9231.000
predicted_IP5.2005.2005.200Pitching_InningsPitched5.5384.100-0.3381.100
predicted_SO4.0004.0004.000Pitching_SO6.2312.000-2.2312.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 5.6667 -> 5.2000 (deboost -0.4667, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_IP: 5.6667 -> 5.2000 (deboost -0.4667, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "677960",
  "player_name": "Ryan Weathers",
  "position": "Starter",
  "team": "NYY",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 4.0,
        "predicted_H": 6.0,
        "predicted_HR": 1.0,
        "predicted_IP": 5.6667,
        "predicted_SO": 4.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 4.0,
        "predicted_H": 6.0,
        "predicted_HR": 1.0,
        "predicted_IP": 5.2,
        "predicted_R": 4.0,
        "predicted_SO": 4.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 6.0,
          "after": 6.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.6667,
          "after": 5.2,
          "delta": -0.4667,
          "percent_delta": -0.0824,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 5.6667,
          "after": 5.2,
          "delta": -0.4667,
          "percent_delta": -0.0824,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 4.0,
        "after": 4.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 6.0,
        "after": 6.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 5.6667,
        "after": 5.2,
        "delta": -0.4667,
        "percent_delta": -0.0824,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 4.0,
        "after": 4.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 5.6667,
        "after": 5.2,
        "delta": -0.4667,
        "percent_delta": -0.0824,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB2.000-
predicted_ER4.000-
predicted_H6.000-
predicted_HR1.000-
predicted_IP5.667-
predicted_SO4.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 13
Reference playing time: 5.667
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.45529.10021.00029.0008.00027.0009.0006.44321.26140.71590.98860.27270.92040.3068
last_100.351058.10031.00049.00016.00063.00015.0004.78291.11430.53140.84000.27431.08000.2571
season0.201374.10036.00066.00021.00081.00015.0004.35871.17040.48430.88790.28251.08970.2018
Weighted Prediction From Real Data
MetricValue
predicted_BB1.7560
predicted_ER3.3760
predicted_ERA5.1849
predicted_H5.4630
predicted_HR1.3730
predicted_IP6.0000
predicted_SO5.8010
predicted_WHIP1.2321
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB2.00001.75601.8700model_form_blend
predicted_ER4.00003.37603.6676model_form_blend
predicted_ERA-5.18495.1849form_only
predicted_H6.00005.46305.7140model_form_blend
predicted_HR1.00001.37301.1987model_form_blend
predicted_IP5.20006.00006.0000model_form_blend
predicted_SO4.00005.80104.9593model_form_blend
predicted_WHIP-1.23211.2321form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date13
Season rows before report date13
Report year2026
Profile rows used13
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP5.2
H6
R4
ER4
BB2
SO4
HR1
BF25
Pitches97

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced20
Pitching_ER6
Pitching_ERA4.36
Pitching_Flyouts5
Pitching_Groundouts6
Pitching_H5
Pitching_HBP1
Pitching_HR2
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched4.1
Pitching_Pitches82
Pitching_R6
Pitching_SO2
Pitching_Strikes52
Pitching_Wild Pitch1
Pitching_decisionL
Pitching_pitchingOrder1
allPositionsPlayedP
gameID20260612_NYY@TOR
game_typefull
mlbID677960
playerID677960
playerNameRyan Weathers
posP
startedTrue
startingPositionP
teamNYY
teamID19
game_date2026-06-12
sl_k_percent26.6
sl_bb_percent6.9
sl_woba0.312
sl_xwoba0.323
sl_sweet_spot_percent30.2
sl_barrel_batted_rate12.0
sl_hard_hit_percent41.6
sl_whiff_percent26.5
sl_swing_percent44.1
sl_avg_best_speed77.3551953
sl_avg_hyper_speed94.910590352
Camilo Doval (666808) · PITCHER · Middle Reliever · Team NYY
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 31
All-history rows before 20260618: 31

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.1610.000-0.1610.000
predicted_ER0.0000.0000.000Pitching_ER0.4840.000-0.4840.000
predicted_H0.0000.0000.000Pitching_H0.8390.000-0.8390.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.7321.0000.2680.000
predicted_SO1.0001.0001.000Pitching_SO0.8062.0000.194-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "666808",
  "player_name": "Camilo Doval",
  "position": "Middle Reliever",
  "team": "NYY",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 31
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.1000.0004.0001.0006.0000.0000.00001.15380.00000.92310.23081.38460.0000
last_100.35108.1004.0009.0001.0008.0001.0004.32001.20000.48001.08000.12000.96000.1200
season0.203126.20015.00026.0005.00025.0004.0005.06251.16250.56250.97500.18750.93750.1500
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2540
predicted_ER0.3640
predicted_ERA3.4878
predicted_H0.9230
predicted_HR0.1010
predicted_IP1.0000
predicted_SO0.9820
predicted_WHIP1.2521
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.25400.1130model_form_blend
predicted_ER0.00000.36400.1619model_form_blend
predicted_ERA-3.48783.4878form_only
predicted_H0.00000.92300.4106model_form_blend
predicted_HR0.00000.10100.0449model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO1.00000.98200.9920model_form_blend
predicted_WHIP-1.25211.2521form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date31
Season rows before report date31
Report year2026
Profile rows used31
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB0
SO1
HR0
BF3
Pitches13

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA5.06
Pitching_Flyouts0
Pitching_Groundouts1
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches15
Pitching_R0
Pitching_SO2
Pitching_Strikes10
Pitching_Wild Pitch0
Pitching_decisionW
Pitching_pitchingOrder5
allPositionsPlayedP
gameID20260614_NYY@TOR
game_typefull
mlbID666808
playerID666808
playerNameCamilo Doval
posP
startedFalse
startingPositionP
teamNYY
teamID19
game_date2026-06-14
sl_k_percent22.5
sl_bb_percent4.5
sl_woba0.296
sl_xwoba0.263
sl_sweet_spot_percent21.0
sl_barrel_batted_rate3.7
sl_hard_hit_percent49.4
sl_whiff_percent26.9
sl_swing_percent50.2
sl_avg_best_speed80.71591275
sl_avg_hyper_speed94.990686375
David Bednar (670280) · PITCHER · Middle Reliever · Team NYY
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 29
All-history rows before 20260618: 29

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.4140.000-0.4140.000
predicted_ER0.0000.0000.000Pitching_ER0.4140.000-0.4140.000
predicted_H1.0001.0001.000Pitching_H1.0002.0000.000-1.000
predicted_IP1.1001.1001.100Pitching_InningsPitched0.9591.0000.1410.100
predicted_SO0.0000.0000.000Pitching_SO1.2410.000-1.2410.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final11010predicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "670280",
  "player_name": "David Bednar",
  "position": "Middle Reliever",
  "team": "NYY",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.1,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 29
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.2000.0002.0001.0007.0000.0000.00000.52940.00000.35290.17651.23530.0000
last_100.351010.2004.0008.0006.00014.0001.0003.37501.31250.37500.75000.56251.31250.0938
season0.202929.20012.00029.00012.00036.0002.0003.64041.38200.40450.97750.40451.21350.0674
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3600
predicted_ER0.3450
predicted_ERA3.1025
predicted_H0.7810
predicted_HR0.0920
predicted_IP1.0000
predicted_SO1.1110
predicted_WHIP1.1407
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.36000.1642model_form_blend
predicted_ER0.00000.34500.1573model_form_blend
predicted_ERA-3.10253.1025form_only
predicted_H1.00000.78100.9001model_form_blend
predicted_HR0.00000.09200.0420model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00001.11100.5066model_form_blend
predicted_WHIP-1.14071.1407form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date29
Season rows before report date29
Report year2026
Profile rows used29
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.1
H1
R0
ER0
BB0
SO0
HR0
BF5
Pitches20

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced5
Pitching_ER0
Pitching_ERA3.64
Pitching_Flyouts1
Pitching_Groundouts0
Pitching_H2
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches12
Pitching_R0
Pitching_SO0
Pitching_Strikes10
Pitching_Wild Pitch0
Pitching_pitchingOrder6
allPositionsPlayedP
gameID20260614_NYY@TOR
game_typefull
mlbID670280
playerID670280
playerNameDavid Bednar
posP
startedFalse
startingPositionP
teamNYY
teamID19
game_date2026-06-14
sl_k_percent27.5
sl_bb_percent9.2
sl_woba0.304
sl_xwoba0.266
sl_sweet_spot_percent23.2
sl_barrel_batted_rate3.7
sl_hard_hit_percent39.0
sl_whiff_percent29.8
sl_swing_percent52.1
sl_avg_best_speed75.793172
sl_avg_hyper_speed93.483921375
Fernando Cruz (518585) · PITCHER · Middle Reliever · Team NYY
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 34
All-history rows before 20260618: 34

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.5593.000-0.559-3.000
predicted_ER0.0000.0000.000Pitching_ER0.2060.000-0.2060.000
predicted_H0.0000.0000.000Pitching_H0.5880.000-0.5880.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.6881.0000.3120.000
predicted_SO2.0002.0002.000Pitching_SO1.1761.0000.8241.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "518585",
  "player_name": "Fernando Cruz",
  "position": "Middle Reliever",
  "team": "NYY",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO2.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 34
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.1001.0002.0005.0007.0000.0001.68751.31250.18750.37500.93751.31250.0000
last_100.351010.2002.0006.0006.00010.0000.0001.68751.12500.18750.56250.56250.93750.0000
season0.203431.1007.00020.00019.00040.0002.0002.01061.24470.22340.63830.60641.27660.0638
Weighted Prediction From Real Data
MetricValue
predicted_BB0.5720
predicted_ER0.3310
predicted_ERA2.9800
predicted_H0.7070
predicted_HR0.0720
predicted_IP1.0000
predicted_SO1.0690
predicted_WHIP1.2796
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.57200.2641model_form_blend
predicted_ER0.00000.33100.1528model_form_blend
predicted_ERA-2.98002.9800form_only
predicted_H0.00000.70700.3265model_form_blend
predicted_HR0.00000.07200.0332model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO2.00001.06901.5701model_form_blend
predicted_WHIP-1.27961.2796form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date34
Season rows before report date34
Report year2026
Profile rows used34
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB0
SO2
HR0
BF3
Pitches16

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB3
Pitching_Balk0
Pitching_Batters Faced6
Pitching_ER0
Pitching_ERA2.01
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches24
Pitching_R0
Pitching_SO1
Pitching_Strikes8
Pitching_Wild Pitch0
Pitching_decisionW
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260613_NYY@TOR
game_typefull
mlbID518585
playerID518585
playerNameFernando Cruz
posP
startedFalse
startingPositionP
teamNYY
teamID19
game_date2026-06-13
sl_k_percent30.5
sl_bb_percent14.5
sl_woba0.275
sl_xwoba0.275
sl_sweet_spot_percent30.0
sl_barrel_batted_rate5.7
sl_hard_hit_percent22.9
sl_whiff_percent41.6
sl_swing_percent42.7
sl_avg_best_speed74.315849118
sl_avg_hyper_speed92.342447647

20260618_CLE@MIL

Prediction Method: enhanced_ml_savant_pitcher_quality
Team Recent Window (Home): 61 games
Team Recent Window (Away): 65 games
Team Recent Period: Latest 10 games from dataset
Enhanced Prediction Target: {"away_runs": 1, "home_runs": 2, "confidence": 0.566487, "home_win_probability": 0.566487, "away_win_probability": 0.43351300000000004, "predicted_score_text": "CLE 1 - 2 MIL", "embedded_savant_score_adjustment": {"applied": true, "source": "all_players_stats.csv embedded temporal Savant features", "feature_contract": {"training_grain": "one player-game row after collapsing granular at-bat rows", "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game", "hitter_signals": ["xwoba", "xba", "xslg", "barrel_batted_rate", "hard_hit_percent", "bat_speed", "launch_quality", "walk_rate", "strikeout_rate"], "pitcher_signals": ["xwoba_allowed", "barrel_allowed", "hard_hit_allowed", "whiff_rate", "command_score", "movement_score", "faced_est_woba", "faced_strikeout_rate"]}, "away": {"team": "CLE", "original_runs": 1, "run_delta": -0.3493, "adjusted_runs": 1, "lineup": {"players_used": 8, "total_weight": 26.0, "quality": -0.1507938306613102, "contact": -0.39455732900349666, "power": -0.37662669486339806, "discipline": 0.058547456708599316, "xwoba": 0.30169230769230765, "recent_xwoba": 0.30169230769230765, "barrel": 6.315384615384615, "ab_hard_contact": -0.10901008774415266, "ab_bat_speed": 69.50022826723935, "ab_strikeout_rate": 0.25221983030915684, "available_players": 7, "top_players": [{"player_id": "681807", "player_name": "David Fry", "position": "LF", "weight": 3.0, "quality": -0.3742913087227884, "contact": -1.2774435521978018, "power": -1.006164383872714, "discipline": 0.23138617886178886, "xwoba": 0.269, "recent_xwoba": 0.269, "barrel": 6.3, "ab_hard_contact": -0.8299543441209453, "ab_bat_speed": 68.97549537037038, "ab_strikeout_rate": 0.305, "available": 1.0}, {"player_id": "595978", "player_name": "Austin Hedges", "position": "C", "weight": 3.0, "quality": -0.21843444476262164, "contact": -0.47315164406288135, "power": -1.009384589656875, "discipline": 0.2518345915602013, "xwoba": 0.286, "recent_xwoba": 0.286, "barrel": 2.4, "ab_hard_contact": -0.28750131694703185, "ab_bat_speed": 66.08498842592593, "ab_strikeout_rate": 0.21319444444444446, "available": 1.0}, {"player_id": "677587", "player_name": "Brayan Rocchio", "position": "SS", "weight": 4.0, "quality": -0.2715163913294929, "contact": -0.11821664206003596, "power": -0.7053370740600202, "discipline": 0.35844682576205816, "xwoba": 0.311, "recent_xwoba": 0.311, "barrel": 3.1, "ab_hard_contact": -0.14217005262898175, "ab_bat_speed": 69.15457023060797, "ab_strikeout_rate": 0.1045822102425876, "available": 1.0}, {"player_id": "672356", "player_name": "Gabriel Arias", "position": "3B", "weight": 3.0, "quality": 0.05815380266004385, "contact": 0.1904087272050702, "power": 1.2804648956032985, "discipline": -1.6375, "xwoba": 0.305, "recent_xwoba": 0.305, "barrel": 15.0, "ab_hard_contact": 1.755202673970728, "ab_bat_speed": 74.32762345679012, "ab_strikeout_rate": 0.42328042328042326, "available": 1.0}, {"player_id": "656413", "player_name": "Stuart Fairchild", "position": "CF", "weight": 3.0, "quality": -0.0, "contact": -0.47928571428571426, "power": -1.0182380952380952, "discipline": 0.4000000000000001, "xwoba": 0.32, "recent_xwoba": 0.32, "barrel": 0.0, "ab_hard_contact": -2.0, "ab_bat_speed": 70.26065568475452, "ab_strikeout_rate": 0.22179487179487178, "available": 0.0}]}, "opposing_starter": {"available": true, "player_id": "675660", "player_name": "Shane Drohan", "quality": 0.1919232780148806, "contact": 0.4132017880830157, "command": 0.44114285714285695, "movement": 0.6205216610722728, "xwoba": 0.273, "whiff": 29.0, "faced_est_woba": 0.267543125, "faced_launch_speed": 83.82962962962962, "faced_strikeout_rate": 0.23125, "faced_run_exp": 0.007916194341372912}}, "home": {"team": "MIL", "original_runs": 2, "run_delta": -0.0967, "adjusted_runs": 2, "lineup": {"players_used": 9, "total_weight": 33.0, "quality": 0.19890546688334496, "contact": 0.11888681060587557, "power": 0.1313334677818546, "discipline": 0.18003319956515143, "xwoba": 0.31793939393939397, "recent_xwoba": 0.31793939393939397, "barrel": 8.03030303030303, "ab_hard_contact": -0.19873901377127953, "ab_bat_speed": 70.29275845851815, "ab_strikeout_rate": 0.22929212822359105, "available_players": 8, "top_players": [{"player_id": "641343", "player_name": "Jake Bauers", "position": "RF", "weight": 4.0, "quality": 0.76076766377566, "contact": 1.0207105668858918, "power": 1.2692297043935308, "discipline": 0.45455501003062, "xwoba": 0.362, "recent_xwoba": 0.362, "barrel": 13.5, "ab_hard_contact": 0.7350702783468104, "ab_bat_speed": 75.74101632395383, "ab_strikeout_rate": 0.22954545454545452, "available": 1.0}, {"player_id": "668930", "player_name": "Brice Turang", "position": "2B", "weight": 4.0, "quality": 0.691391779118644, "contact": 0.7647098314662188, "power": 0.6881574210234596, "discipline": 0.9167148825654924, "xwoba": 0.363, "recent_xwoba": 0.363, "barrel": 9.4, "ab_hard_contact": 0.8122912776120457, "ab_bat_speed": 67.52860339506172, "ab_strikeout_rate": 0.23067129629629632, "available": 1.0}, {"player_id": "694192", "player_name": "Jackson Chourio", "position": "LF", "weight": 5.0, "quality": 0.35006896695864925, "contact": 0.8945416110018637, "power": 1.5238189425144344, "discipline": -0.23743712940888795, "xwoba": 0.358, "recent_xwoba": 0.358, "barrel": 15.3, "ab_hard_contact": 0.7274264693363091, "ab_bat_speed": 73.21261779448622, "ab_strikeout_rate": 0.3078947368421052, "available": 1.0}, {"player_id": "687401", "player_name": "Joey Ortiz", "position": "3B", "weight": 3.0, "quality": -0.23863757116434506, "contact": -0.37713801493798593, "power": -0.9786839578615053, "discipline": 0.8115741487866007, "xwoba": 0.297, "recent_xwoba": 0.297, "barrel": 3.3, "ab_hard_contact": -0.9683458238967746, "ab_bat_speed": 69.79511695906433, "ab_strikeout_rate": 0.18552631578947368, "available": 1.0}, {"player_id": "806198", "player_name": "Cooper Pratt", "position": "SS", "weight": 4.0, "quality": -0.0, "contact": -1.3518285714285707, "power": -1.5142666666666664, "discipline": -1.2955, "xwoba": 0.188, "recent_xwoba": 0.188, "barrel": 0.0, "ab_hard_contact": -2.0, "ab_bat_speed": 70.26065568475452, "ab_strikeout_rate": 0.22179487179487178, "available": 0.0}]}, "opposing_starter": {"available": true, "player_id": "800048", "player_name": "Parker Messick", "quality": 0.3184570130039421, "contact": 0.4455488393993651, "command": 0.33200000000000013, "movement": -0.03823186919812674, "xwoba": 0.288, "whiff": 27.1, "faced_est_woba": 0.267543125, "faced_launch_speed": 83.82962962962962, "faced_strikeout_rate": 0.23125, "faced_run_exp": 0.007916194341372912}}}, "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Production confidence governor cap enforced.", "pre_simulation_target": {"away_runs": 1, "home_runs": 2, "predicted_score_text": "CLE 1 - 2 MIL", "confidence": 0.566487, "source": "enhanced_prediction_before_inning_simulation"}, "score_source": "enhanced_prediction.pre_simulation_target", "final_prediction_synced": true, "final_prediction_source": "pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "simulation_score_matches_prediction": true, "simulation_reconciliation": {"pre_simulation_score": {"away_runs": 1, "home_runs": 2, "score_text": "CLE 1 - 2 MIL", "winner": "MIL"}, "final_simulation_score": {"away_runs": 1, "home_runs": 2, "score_text": "CLE 1 - 2 MIL", "winner": "MIL"}, "winner_flipped_by_simulation": false, "away_run_delta": 0, "home_run_delta": 0, "total_run_delta": 0, "score_source": "enhanced_prediction.pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "final_prediction_source": "pre_simulation_target"}}
Factors Considered: Historical team performance, Season-to-date run differential, Recent form (latest 10 games), Head-to-head matchup history, Player-level statistics, Baseball Savant hitter xwOBA/xBA/xSLG/contact quality, Baseball Savant pitcher xwOBA/contact/whiff quality, Recent 10-game performance trends, Pitcher recent form analysis, Team hitting/pitching streaks, Low-score probability modeling, Environmental factors, Home field advantage, Game timing factors, Seasonal adjustments, Machine learning models

Game-Level Prediction Audit

LayerScoreWinnerConfidenceSource or usageSynced or matches
Shipped predictionCLE 1 - 2 MILMIL0.566enhanced_prediction.pre_simulation_targetTrue
Simulation drawCLE 1 - 2 MILMIL-advisory_box_score_drawTrue

The shipped score is the pre-simulation model target. The inning simulation is a separate box-score realization used for player lines and stress testing.

Full Prediction Process

Process LayerWhat It DoesStored FieldObserved Value
1. Historical modelStarts from trained game model output.score_evolution.steps[historical_ml]-
2. Variance layerApplies bounded game variance before enhanced corrections.score_evolution.steps[variance_applied]-
3. Recent/team formUses latest team form, recent scoring, prevention, and streak state.enhanced_prediction_analysis.recent_formTrue
4. Season qualityUses season run differential and record quality guardrails.season_run_differential_adjustment, season_quality_guardrailTrue
5. Savant hittersApplies lineup-level Statcast xwOBA, xBA, xSLG, barrel, hard-hit, sweet-spot, EV, launch-angle, whiff, K and BB quality.savant_batter_quality_adjustmentTrue
6. Savant pitchersApplies starter run prevention, strikeout, walk, HR and regression factors from xwOBA, wOBA, contact quality and whiff/command.savant_pitcher_quality_adjustmentTrue
7. Low-score analysisControls unrealistic totals and preserves the pre-sync low-score expected total.low_score_analysis6.5000
8. Probability/governorsApplies win probability calibration, matchup guardrails, margin governor and confidence governor.win_probability_calibration, margin_governor, confidence_governor0.5665
9. Simulation reconciliationKeeps final shipped score and simulation box score auditable side by side.simulation_reconciliationadvisory_box_score_draw
10. Score evolution rendered6 stored score steps are rendered below.game.score_evolution.stepstrue

Score Evolution Steps

StepLayerAway RunsHome RunsConfidenceDescription
1historical_ml3.1833.199-Base ML historical model prediction
2variance_applied33-Random variance applied (0.9-1.1)
3enhanced_prediction120.5665Enhanced ML with recent form, H2H, low-score analysis
4embedded_savant_run_environment12-Target score adjusted by temporal Savant lineup quality versus opposing starter quality
5capped_target12-Capped at max 12 realistic runs
6simulation_result12-Final inning-by-inning simulation result

Governors, Guardrails, and Reconciliation

Low Score Analysis
{
  "low_score_probability": 0.663702572614108,
  "base_low_score_probability": 0.4149377593360996,
  "low_score_signal_threshold": 0.5,
  "low_score_signal_strength": 0.24876481327800842,
  "confidence": 0.8997616000000002,
  "factors": {
    "environmental": 1.1016000000000001,
    "pitcher_form": 1.4520000000000002,
    "team_form": 1.0,
    "situational": 1.0,
    "combined": 1.5995232000000004
  },
  "prediction": "low_scoring",
  "expected_total_runs": 3,
  "pre_simulation_expected_total_runs": 6.5,
  "low_score_model_expected_total_runs": 6.5,
  "final_simulation_total_runs": 3,
  "score_source": "enhanced_prediction.pre_simulation_target"
}
Win Probability Calibration
{
  "method": "historical_slate_bin_shrinkage",
  "sample_size": 212,
  "near_bucket_sample_size": 212,
  "medium_bucket_sample_size": 236,
  "wide_bucket_sample_size": 242,
  "global_sample_size": 242,
  "bucket_scope": "near_0.05",
  "sparse_bucket": false,
  "empirical_hit_rate": 0.5849,
  "bayesian_hit_rate": 0.5783,
  "sample_weight": 0.6,
  "prior_strength": 18.0,
  "reliability": 0.9217,
  "confidence_cap": 0.78,
  "raw_pick_probability": 0.5673,
  "calibrated_pick_probability": 0.5665,
  "predicted_side": "home"
}
Season Run Differential Adjustment
{
  "applied": true,
  "home": {
    "team": "MIL",
    "games": 71,
    "wins": 45,
    "losses": 26,
    "win_pct": 0.6338028169014085,
    "runs_scored": 381,
    "runs_allowed": 263,
    "run_differential": 118,
    "run_differential_per_game": 1.6619718309859155,
    "available": true
  },
  "away": {
    "team": "CLE",
    "games": 74,
    "wins": 39,
    "losses": 35,
    "win_pct": 0.527027027027027,
    "runs_scored": 294,
    "runs_allowed": 303,
    "run_differential": -9,
    "run_differential_per_game": -0.12162162162162163,
    "available": true
  },
  "run_differential_edge_per_game": 1.7836,
  "win_pct_edge": 0.1068,
  "quality_edge": 1.9438,
  "margin_adjustment": 0.8164,
  "reason": "season-to-date run differential and record moved the score toward the stronger team",
  "adjusted_score": {
    "away_runs": 0.624,
    "home_runs": 1.416,
    "home_win_probability": 0.5673
  }
}
Matchup Recency Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "predicted_team": "MIL",
    "guardrail_predicted_team": "MIL",
    "guardrail_opponent_team": null,
    "output_pre_simulation_winner": "MIL",
    "output_opponent_team": "CLE",
    "final_score_winner": "MIL",
    "pre_simulation_winner": "MIL",
    "winner_flipped_by_simulation": false
  },
  "final_prediction_sync": {
    "pre_simulation_score": {
      "away_runs": 1,
      "home_runs": 2,
      "score_text": "CLE 1 - 2 MIL",
      "winner": "MIL"
    },
    "final_simulation_score": {
      "away_runs": 1,
      "home_runs": 2,
      "score_text": "CLE 1 - 2 MIL",
      "winner": "MIL"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": 0,
    "home_run_delta": 0,
    "total_run_delta": 0,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}
Season Quality Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "home": {
      "team": "MIL",
      "games": 71,
      "wins": 45,
      "losses": 26,
      "win_pct": 0.6338028169014085,
      "runs_scored": 381,
      "runs_allowed": 263,
      "run_differential": 118,
      "run_differential_per_game": 1.6619718309859155,
      "available": true
    },
    "away": {
      "team": "CLE",
      "games": 74,
      "wins": 39,
      "losses": 35,
      "win_pct": 0.527027027027027,
      "runs_scored": 294,
      "runs_allowed": 303,
      "run_differential": -9,
      "run_differential_per_game": -0.12162162162162163,
      "available": true
    }
  }
}
Margin Governor
{
  "applied": false,
  "raw_margin": 0.7917,
  "final_margin": 0.7917,
  "margin_cap": 4.25,
  "season_quality_edge": 1.9438,
  "reason": "raw target margin within supported range"
}
Confidence Governor
{
  "applied": false,
  "raw_confidence": 0.566487,
  "final_confidence": 0.566487,
  "confidence_cap": 0.66,
  "score_gap": 0.7917,
  "calibration_sample_size": 212,
  "calibration_empirical_hit_rate": 0.5849,
  "calibration_bayesian_hit_rate": 0.5783,
  "calibration_sparse_bucket": false,
  "season_quality_edge": 1.9438,
  "reasons": [
    "unvalidated probabilities are capped for production display",
    "projected score gap is close",
    "local calibration sample has at least 30 games",
    "local calibration sample has at least 60 games",
    "season run-differential edge supports the pick",
    "win-probability calibration cap enforced"
  ]
}
Simulation Reconciliation
{
  "pre_simulation_score": {
    "away_runs": 1,
    "home_runs": 2,
    "score_text": "CLE 1 - 2 MIL",
    "winner": "MIL"
  },
  "final_simulation_score": {
    "away_runs": 1,
    "home_runs": 2,
    "score_text": "CLE 1 - 2 MIL",
    "winner": "MIL"
  },
  "winner_flipped_by_simulation": false,
  "away_run_delta": 0,
  "home_run_delta": 0,
  "total_run_delta": 0,
  "score_source": "enhanced_prediction.pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "final_prediction_source": "pre_simulation_target"
}
Enhanced Prediction Target
{
  "away_runs": 1,
  "home_runs": 2,
  "confidence": 0.566487,
  "home_win_probability": 0.566487,
  "away_win_probability": 0.43351300000000004,
  "predicted_score_text": "CLE 1 - 2 MIL",
  "embedded_savant_score_adjustment": {
    "applied": true,
    "source": "all_players_stats.csv embedded temporal Savant features",
    "feature_contract": {
      "training_grain": "one player-game row after collapsing granular at-bat rows",
      "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game",
      "hitter_signals": [
        "xwoba",
        "xba",
        "xslg",
        "barrel_batted_rate",
        "hard_hit_percent",
        "bat_speed",
        "launch_quality",
        "walk_rate",
        "strikeout_rate"
      ],
      "pitcher_signals": [
        "xwoba_allowed",
        "barrel_allowed",
        "hard_hit_allowed",
        "whiff_rate",
        "command_score",
        "movement_score",
        "faced_est_woba",
        "faced_strikeout_rate"
      ]
    },
    "away": {
      "team": "CLE",
      "original_runs": 1,
      "run_delta": -0.3493,
      "adjusted_runs": 1,
      "lineup": {
        "players_used": 8,
        "total_weight": 26.0,
        "quality": -0.1507938306613102,
        "contact": -0.39455732900349666,
        "power": -0.37662669486339806,
        "discipline": 0.058547456708599316,
        "xwoba": 0.30169230769230765,
        "recent_xwoba": 0.30169230769230765,
        "barrel": 6.315384615384615,
        "ab_hard_contact": -0.10901008774415266,
        "ab_bat_speed": 69.50022826723935,
        "ab_strikeout_rate": 0.25221983030915684,
        "available_players": 7,
        "top_players": [
          {
            "player_id": "681807",
            "player_name": "David Fry",
            "position": "LF",
            "weight": 3.0,
            "quality": -0.3742913087227884,
            "contact": -1.2774435521978018,
            "power": -1.006164383872714,
            "discipline": 0.23138617886178886,
            "xwoba": 0.269,
            "recent_xwoba": 0.269,
            "barrel": 6.3,
            "ab_hard_contact": -0.8299543441209453,
            "ab_bat_speed": 68.97549537037038,
            "ab_strikeout_rate": 0.305,
            "available": 1.0
          },
          {
            "player_id": "595978",
            "player_name": "Austin Hedges",
            "position": "C",
            "weight": 3.0,
            "quality": -0.21843444476262164,
            "contact": -0.47315164406288135,
            "power": -1.009384589656875,
            "discipline": 0.2518345915602013,
            "xwoba": 0.286,
            "recent_xwoba": 0.286,
            "barrel": 2.4,
            "ab_hard_contact": -0.28750131694703185,
            "ab_bat_speed": 66.08498842592593,
            "ab_strikeout_rate": 0.21319444444444446,
            "available": 1.0
          },
          {
            "player_id": "677587",
            "player_name": "Brayan Rocchio",
            "position": "SS",
            "weight": 4.0,
            "quality": -0.2715163913294929,
            "contact": -0.11821664206003596,
            "power": -0.7053370740600202,
            "discipline": 0.35844682576205816,
            "xwoba": 0.311,
            "recent_xwoba": 0.311,
            "barrel": 3.1,
            "ab_hard_contact": -0.14217005262898175,
            "ab_bat_speed": 69.15457023060797,
            "ab_strikeout_rate": 0.1045822102425876,
            "available": 1.0
          },
          {
            "player_id": "672356",
            "player_name": "Gabriel Arias",
            "position": "3B",
            "weight": 3.0,
            "quality": 0.05815380266004385,
            "contact": 0.1904087272050702,
            "power": 1.2804648956032985,
            "discipline": -1.6375,
            "xwoba": 0.305,
            "recent_xwoba": 0.305,
            "barrel": 15.0,
            "ab_hard_contact": 1.755202673970728,
            "ab_bat_speed": 74.32762345679012,
            "ab_strikeout_rate": 0.42328042328042326,
            "available": 1.0
          },
          {
            "player_id": "656413",
            "player_name": "Stuart Fairchild",
            "position": "CF",
            "weight": 3.0,
            "quality": -0.0,
            "contact": -0.47928571428571426,
            "power": -1.0182380952380952,
            "discipline": 0.4000000000000001,
            "xwoba": 0.32,
            "recent_xwoba": 0.32,
            "barrel": 0.0,
            "ab_hard_contact": -2.0,
            "ab_bat_speed": 70.26065568475452,
            "ab_strikeout_rate": 0.22179487179487178,
            "available": 0.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "675660",
        "player_name": "Shane Drohan",
        "quality": 0.1919232780148806,
        "contact": 0.4132017880830157,
        "command": 0.44114285714285695,
        "movement": 0.6205216610722728,
        "xwoba": 0.273,
        "whiff": 29.0,
        "faced_est_woba": 0.267543125,
        "faced_launch_speed": 83.82962962962962,
        "faced_strikeout_rate": 0.23125,
        "faced_run_exp": 0.007916194341372912
      }
    },
    "home": {
      "team": "MIL",
      "original_runs": 2,
      "run_delta": -0.0967,
      "adjusted_runs": 2,
      "lineup": {
        "players_used": 9,
        "total_weight": 33.0,
        "quality": 0.19890546688334496,
        "contact": 0.11888681060587557,
        "power": 0.1313334677818546,
        "discipline": 0.18003319956515143,
        "xwoba": 0.31793939393939397,
        "recent_xwoba": 0.31793939393939397,
        "barrel": 8.03030303030303,
        "ab_hard_contact": -0.19873901377127953,
        "ab_bat_speed": 70.29275845851815,
        "ab_strikeout_rate": 0.22929212822359105,
        "available_players": 8,
        "top_players": [
          {
            "player_id": "641343",
            "player_name": "Jake Bauers",
            "position": "RF",
            "weight": 4.0,
            "quality": 0.76076766377566,
            "contact": 1.0207105668858918,
            "power": 1.2692297043935308,
            "discipline": 0.45455501003062,
            "xwoba": 0.362,
            "recent_xwoba": 0.362,
            "barrel": 13.5,
            "ab_hard_contact": 0.7350702783468104,
            "ab_bat_speed": 75.74101632395383,
            "ab_strikeout_rate": 0.22954545454545452,
            "available": 1.0
          },
          {
            "player_id": "668930",
            "player_name": "Brice Turang",
            "position": "2B",
            "weight": 4.0,
            "quality": 0.691391779118644,
            "contact": 0.7647098314662188,
            "power": 0.6881574210234596,
            "discipline": 0.9167148825654924,
            "xwoba": 0.363,
            "recent_xwoba": 0.363,
            "barrel": 9.4,
            "ab_hard_contact": 0.8122912776120457,
            "ab_bat_speed": 67.52860339506172,
            "ab_strikeout_rate": 0.23067129629629632,
            "available": 1.0
          },
          {
            "player_id": "694192",
            "player_name": "Jackson Chourio",
            "position": "LF",
            "weight": 5.0,
            "quality": 0.35006896695864925,
            "contact": 0.8945416110018637,
            "power": 1.5238189425144344,
            "discipline": -0.23743712940888795,
            "xwoba": 0.358,
            "recent_xwoba": 0.358,
            "barrel": 15.3,
            "ab_hard_contact": 0.7274264693363091,
            "ab_bat_speed": 73.21261779448622,
            "ab_strikeout_rate": 0.3078947368421052,
            "available": 1.0
          },
          {
            "player_id": "687401",
            "player_name": "Joey Ortiz",
            "position": "3B",
            "weight": 3.0,
            "quality": -0.23863757116434506,
            "contact": -0.37713801493798593,
            "power": -0.9786839578615053,
            "discipline": 0.8115741487866007,
            "xwoba": 0.297,
            "recent_xwoba": 0.297,
            "barrel": 3.3,
            "ab_hard_contact": -0.9683458238967746,
            "ab_bat_speed": 69.79511695906433,
            "ab_strikeout_rate": 0.18552631578947368,
            "available": 1.0
          },
          {
            "player_id": "806198",
            "player_name": "Cooper Pratt",
            "position": "SS",
            "weight": 4.0,
            "quality": -0.0,
            "contact": -1.3518285714285707,
            "power": -1.5142666666666664,
            "discipline": -1.2955,
            "xwoba": 0.188,
            "recent_xwoba": 0.188,
            "barrel": 0.0,
            "ab_hard_contact": -2.0,
            "ab_bat_speed": 70.26065568475452,
            "ab_strikeout_rate": 0.22179487179487178,
            "available": 0.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "800048",
        "player_name": "Parker Messick",
        "quality": 0.3184570130039421,
        "contact": 0.4455488393993651,
        "command": 0.33200000000000013,
        "movement": -0.03823186919812674,
        "xwoba": 0.288,
        "whiff": 27.1,
        "faced_est_woba": 0.267543125,
        "faced_launch_speed": 83.82962962962962,
        "faced_strikeout_rate": 0.23125,
        "faced_run_exp": 0.007916194341372912
      }
    }
  },
  "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Production confidence governor cap enforced.",
  "pre_simulation_target": {
    "away_runs": 1,
    "home_runs": 2,
    "predicted_score_text": "CLE 1 - 2 MIL",
    "confidence": 0.566487,
    "source": "enhanced_prediction_before_inning_simulation"
  },
  "score_source": "enhanced_prediction.pre_simulation_target",
  "final_prediction_synced": true,
  "final_prediction_source": "pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "simulation_score_matches_prediction": true,
  "simulation_reconciliation": {
    "pre_simulation_score": {
      "away_runs": 1,
      "home_runs": 2,
      "score_text": "CLE 1 - 2 MIL",
      "winner": "MIL"
    },
    "final_simulation_score": {
      "away_runs": 1,
      "home_runs": 2,
      "score_text": "CLE 1 - 2 MIL",
      "winner": "MIL"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": 0,
    "home_run_delta": 0,
    "total_run_delta": 0,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}

Savant Batter Quality

Source: data/all_players_stats.csv embedded Savant hitter features. It adjusts team offense through expected production and contact quality, then records coverage so missing hitters are visible.

TeamAppliedOffense FactorRaw Avg FactorCoverage WeightCoveredMissing
Away CLETrue0.99100.98990.888981
Home MILTrue1.01261.0126190

Away Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
SSBrayan Rocchio570.9872-0.1701neutral0.31100.25000.35603.1032.5086.7012.1023.5013.608.70-0.4857
1BRhys Hoskins4710.9868-0.1764neutral0.29500.17500.312011.1041.7088.6024.1030.3029.8016.60-0.4286
LFDavid Fry3140.9682-0.4238negative_batter_regression0.26900.19100.27106.3031.7086.1016.103130.4014.80-1.2857
2BTravis Bazzana1320.9919-0.1074neutral0.30900.23500.35203.3035.5088.6013.102519.2012.10-0.6571
DHKyle Manzardo2361.01220.1627neutral0.31300.22600.389011.4042.3089.3017.3030.4032.9010.40-0.1714
3BGabriel Arias2531.01590.2114neutral0.30500.23500.42301555955.5042.4038.905.60-0.2000
CFStuart Fairchild2920.9777-0.2974negative_batter_regression0.32000.10900.1870050961466.7047.6028.60-1.2286
CAustin Hedges1800.9794-0.2746neutral0.28600.24600.32002.4030.50866.4022.8016.409.10-0.8000

Home Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
LFJackson Chourio501.03570.4765negative_batter_regression0.35800.26700.520015.3048.3092.3012.702323.707.50-1.2571
1BAndrew Vaughn1341.01080.1434negative_batter_regression0.34800.28900.40703.4042.5089.309.6018.6010.709.80-2
DHChristian Yelich1720.9914-0.1152negative_batter_regression0.29800.23100.37607.2038.7088.803.3031.1029.109.30-1.1714
2BBrice Turang151.06880.9172neutral0.36300.25600.45909.4045.3090.807.7021.1024.7015.80-0.2571
CGary Sánchez2101.03230.4306neutral0.37300.23500.473010.6035.3087.9015.3026.2019.1016.900.0857
RFJake Bauers771.06500.8660neutral0.36200.25800.475013.5054.8092.609.3024.8023.2012.80-0.5143
CFBlake Perkins3070.9810-0.2535positive_batter_regression0.26800.19400.29605.4035.7086.5013.4023.4023.3010.501.4000
SSCooper Pratt3220.9409-0.7874negative_batter_regression0.18800.20200.225004087.80-0.1031.3028.600-1.9143
3BJoey Ortiz2660.9873-0.1696positive_batter_regression0.29700.23100.30003.3033.3087.307.3017.5015.9011.800.9714
Raw Savant Batter Quality JSON
{
  "home": {
    "applied": true,
    "offense_factor": 1.0126,
    "raw_average_factor": 1.0126,
    "team_espn_average_rank": 172.56,
    "coverage_weight": 1.0,
    "covered_batters": 9,
    "missing_batters": 0,
    "players": [
      {
        "position": "LF",
        "player_id": "694192",
        "player_name": "Jackson Chourio",
        "offense_factor": 1.0357,
        "quality_score": 0.4765,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "694192",
          "espn_id": 4917869,
          "player_name": "Jackson Chourio",
          "team": "MIL",
          "role": "batter",
          "espn_rank": 50,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 50,
            "gp_value": 37.0,
            "gp_rank": 324,
            "ab_value": 159.0,
            "ab_rank": 226,
            "r_value": 28.0,
            "r_rank": 139,
            "h_value": 50.0,
            "h_rank": 147,
            "avg_value": 0.3144654,
            "avg_rank": null,
            "2b_value": 11.0,
            "2b_rank": 110,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 10.0,
            "hr_rank": 69,
            "rbi_value": 28.0,
            "rbi_rank": 131,
            "tb_value": 91.0,
            "tb_rank": 852,
            "bb_value": 13.0,
            "bb_rank": 237,
            "so_value": 41.0,
            "so_rank": 187,
            "sb_value": 5.0,
            "sb_rank": 94,
            "obp_value": 0.3641618,
            "obp_rank": "-",
            "slg_value": 0.572327,
            "slg_rank": "-",
            "ops_value": 0.9364888,
            "ops_rank": null,
            "war_value": 2.01,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 87.0,
          "k_percent": 23.7,
          "bb_percent": 7.5,
          "woba": 0.402,
          "xwoba": 0.358,
          "xba": 0.267,
          "xslg": 0.52,
          "sweet_spot_percent": 34.5,
          "barrel_batted_rate": 15.3,
          "hard_hit_percent": 48.3,
          "exit_velocity_avg": 92.3,
          "launch_angle_avg": 12.7,
          "whiff_percent": 23.0,
          "swing_percent": 46.5
        },
        "components": {
          "expected_quality": 1.436,
          "regression_edge": -1.2571,
          "xwoba_edge": 1.5429,
          "xba_edge": 0.8143,
          "xslg_edge": 2.1143,
          "barrel_edge": 1.8889,
          "hard_hit_edge": 1.4,
          "exit_velocity_edge": 1.4,
          "sweet_spot_edge": 0.2,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "1B",
        "player_id": "683734",
        "player_name": "Andrew Vaughn",
        "offense_factor": 1.0108,
        "quality_score": 0.1434,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "683734",
          "espn_id": 42394,
          "player_name": "Andrew Vaughn",
          "team": "MIL",
          "role": "batter",
          "espn_rank": 134,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 134,
            "gp_value": 34.0,
            "gp_rank": 333,
            "ab_value": 99.0,
            "ab_rank": 321,
            "r_value": 14.0,
            "r_rank": 287,
            "h_value": 35.0,
            "h_rank": 232,
            "avg_value": 0.3535353,
            "avg_rank": null,
            "2b_value": 10.0,
            "2b_rank": 125,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 2.0,
            "hr_rank": 301,
            "rbi_value": 19.0,
            "rbi_rank": 216,
            "tb_value": 53.0,
            "tb_rank": 1404,
            "bb_value": 11.0,
            "bb_rank": 271,
            "so_value": 12.0,
            "so_rank": 426,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.4285714,
            "obp_rank": "-",
            "slg_value": 0.5353535,
            "slg_rank": "-",
            "ops_value": 0.9639249,
            "ops_rank": null,
            "war_value": 0.97,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 59.0,
          "k_percent": 10.7,
          "bb_percent": 9.8,
          "woba": 0.421,
          "xwoba": 0.348,
          "xba": 0.289,
          "xslg": 0.407,
          "sweet_spot_percent": 34.5,
          "barrel_batted_rate": 3.4,
          "hard_hit_percent": 42.5,
          "exit_velocity_avg": 89.3,
          "launch_angle_avg": 9.6,
          "whiff_percent": 18.6,
          "swing_percent": 41.2
        },
        "components": {
          "expected_quality": 0.6962,
          "regression_edge": -2.0,
          "xwoba_edge": 1.2571,
          "xba_edge": 1.4429,
          "xslg_edge": 0.5,
          "barrel_edge": -0.7556,
          "hard_hit_edge": 0.5714,
          "exit_velocity_edge": 0.2,
          "sweet_spot_edge": 0.2,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "DH",
        "player_id": "592885",
        "player_name": "Christian Yelich",
        "offense_factor": 0.9914,
        "quality_score": -0.1152,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "592885",
          "espn_id": 31283,
          "player_name": "Christian Yelich",
          "team": "MIL",
          "role": "batter",
          "espn_rank": 172,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 172,
            "gp_value": 41.0,
            "gp_rank": 296,
            "ab_value": 163.0,
            "ab_rank": 220,
            "r_value": 34.0,
            "r_rank": 83,
            "h_value": 45.0,
            "h_rank": 177,
            "avg_value": 0.2760736,
            "avg_rank": null,
            "2b_value": 8.0,
            "2b_rank": 188,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 5.0,
            "hr_rank": 184,
            "rbi_value": 24.0,
            "rbi_rank": 173,
            "tb_value": 70.0,
            "tb_rank": 1061,
            "bb_value": 17.0,
            "bb_rank": 181,
            "so_value": 53.0,
            "so_rank": 120,
            "sb_value": 5.0,
            "sb_rank": 94,
            "obp_value": 0.3461538,
            "obp_rank": "-",
            "slg_value": 0.4294478,
            "slg_rank": "-",
            "ops_value": 0.7756016,
            "ops_rank": null,
            "war_value": 0.69,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 94.0,
          "k_percent": 29.1,
          "bb_percent": 9.3,
          "woba": 0.339,
          "xwoba": 0.298,
          "xba": 0.231,
          "xslg": 0.376,
          "sweet_spot_percent": 29.7,
          "barrel_batted_rate": 7.2,
          "hard_hit_percent": 38.7,
          "exit_velocity_avg": 88.8,
          "launch_angle_avg": 3.3,
          "whiff_percent": 31.1,
          "swing_percent": 45.3
        },
        "components": {
          "expected_quality": -0.1069,
          "regression_edge": -1.1714,
          "xwoba_edge": -0.1714,
          "xba_edge": -0.2143,
          "xslg_edge": 0.0571,
          "barrel_edge": 0.0889,
          "hard_hit_edge": 0.0286,
          "exit_velocity_edge": 0.0,
          "sweet_spot_edge": -0.6,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "2B",
        "player_id": "668930",
        "player_name": "Brice Turang",
        "offense_factor": 1.0688,
        "quality_score": 0.9172,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "668930",
          "espn_id": 41179,
          "player_name": "Brice Turang",
          "team": "MIL",
          "role": "batter",
          "espn_rank": 15,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 15,
            "gp_value": 67.0,
            "gp_rank": 117,
            "ab_value": 252.0,
            "ab_rank": 89,
            "r_value": 54.0,
            "r_rank": 2,
            "h_value": 67.0,
            "h_rank": 66,
            "avg_value": 0.265873,
            "avg_rank": 56.0,
            "2b_value": 15.0,
            "2b_rank": 27,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 11.0,
            "hr_rank": 55,
            "rbi_value": 44.0,
            "rbi_rank": 23,
            "tb_value": 119.0,
            "tb_rank": 160,
            "bb_value": 48.0,
            "bb_rank": 8,
            "so_value": 75.0,
            "so_rank": 31,
            "sb_value": 12.0,
            "sb_rank": 21,
            "obp_value": 0.3807947,
            "obp_rank": "16",
            "slg_value": 0.4722222,
            "slg_rank": "42",
            "ops_value": 0.8530169,
            "ops_rank": 58.0,
            "war_value": 2.94,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 216.0,
          "k_percent": 24.7,
          "bb_percent": 15.8,
          "woba": 0.372,
          "xwoba": 0.363,
          "xba": 0.256,
          "xslg": 0.459,
          "sweet_spot_percent": 37.0,
          "barrel_batted_rate": 9.4,
          "hard_hit_percent": 45.3,
          "exit_velocity_avg": 90.8,
          "launch_angle_avg": 7.7,
          "whiff_percent": 21.1,
          "swing_percent": 40.8
        },
        "components": {
          "expected_quality": 1.1281,
          "regression_edge": -0.2571,
          "xwoba_edge": 1.6857,
          "xba_edge": 0.5,
          "xslg_edge": 1.2429,
          "barrel_edge": 0.5778,
          "hard_hit_edge": 0.9714,
          "exit_velocity_edge": 0.8,
          "sweet_spot_edge": 0.6167,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "C",
        "player_id": "596142",
        "player_name": "Gary Sánchez",
        "offense_factor": 1.0323,
        "quality_score": 0.4306,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "596142",
          "espn_id": 31095,
          "player_name": "Gary Sanchez",
          "team": "MIL",
          "role": "batter",
          "espn_rank": 210,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 210,
            "gp_value": 42.0,
            "gp_rank": 290,
            "ab_value": 111.0,
            "ab_rank": 299,
            "r_value": 21.0,
            "r_rank": 203,
            "h_value": 25.0,
            "h_rank": 297,
            "avg_value": 0.2252252,
            "avg_rank": null,
            "2b_value": 4.0,
            "2b_rank": 307,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 19.0,
            "rbi_rank": 216,
            "tb_value": 52.0,
            "tb_rank": 1105,
            "bb_value": 23.0,
            "bb_rank": 109,
            "so_value": 26.0,
            "so_rank": 301,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.367647,
            "obp_rank": "-",
            "slg_value": 0.4684684,
            "slg_rank": "-",
            "ops_value": 0.8361154,
            "ops_rank": null,
            "war_value": 0.47,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 111.0,
          "k_percent": 19.1,
          "bb_percent": 16.9,
          "woba": 0.37,
          "xwoba": 0.373,
          "xba": 0.235,
          "xslg": 0.473,
          "sweet_spot_percent": 27.1,
          "barrel_batted_rate": 10.6,
          "hard_hit_percent": 35.3,
          "exit_velocity_avg": 87.9,
          "launch_angle_avg": 15.3,
          "whiff_percent": 26.2,
          "swing_percent": 36.1
        },
        "components": {
          "expected_quality": 0.9785,
          "regression_edge": 0.0857,
          "xwoba_edge": 1.9714,
          "xba_edge": -0.1,
          "xslg_edge": 1.4429,
          "barrel_edge": 0.8444,
          "hard_hit_edge": -0.4571,
          "exit_velocity_edge": -0.36,
          "sweet_spot_edge": -1.0333,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "RF",
        "player_id": "641343",
        "player_name": "Jake Bauers",
        "offense_factor": 1.065,
        "quality_score": 0.866,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "641343",
          "espn_id": 35013,
          "player_name": "Jake Bauers",
          "team": "MIL",
          "role": "batter",
          "espn_rank": 77,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 77,
            "gp_value": 62.0,
            "gp_rank": 163,
            "ab_value": 215.0,
            "ab_rank": 133,
            "r_value": 41.0,
            "r_rank": 46,
            "h_value": 58.0,
            "h_rank": 107,
            "avg_value": 0.2697674,
            "avg_rank": 54.0,
            "2b_value": 12.0,
            "2b_rank": 80,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 13.0,
            "hr_rank": 39,
            "rbi_value": 46.0,
            "rbi_rank": 20,
            "tb_value": 109.0,
            "tb_rank": 692,
            "bb_value": 32.0,
            "bb_rank": 49,
            "so_value": 58.0,
            "so_rank": 91,
            "sb_value": 5.0,
            "sb_rank": 94,
            "obp_value": 0.372,
            "obp_rank": "28",
            "slg_value": 0.5069767,
            "slg_rank": "24",
            "ops_value": 0.8789767,
            "ops_rank": 52.0,
            "war_value": 1.58,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 174.0,
          "k_percent": 23.2,
          "bb_percent": 12.8,
          "woba": 0.38,
          "xwoba": 0.362,
          "xba": 0.258,
          "xslg": 0.475,
          "sweet_spot_percent": 30.6,
          "barrel_batted_rate": 13.5,
          "hard_hit_percent": 54.8,
          "exit_velocity_avg": 92.6,
          "launch_angle_avg": 9.3,
          "whiff_percent": 24.8,
          "swing_percent": 41.0
        },
        "components": {
          "expected_quality": 1.3569,
          "regression_edge": -0.5143,
          "xwoba_edge": 1.6571,
          "xba_edge": 0.5571,
          "xslg_edge": 1.4714,
          "barrel_edge": 1.4889,
          "hard_hit_edge": 2.3286,
          "exit_velocity_edge": 1.52,
          "sweet_spot_edge": -0.45,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "CF",
        "player_id": "663368",
        "player_name": "Blake Perkins",
        "offense_factor": 0.981,
        "quality_score": -0.2535,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "663368",
          "espn_id": 36974,
          "player_name": "Blake Perkins",
          "team": "MIL",
          "role": "batter",
          "espn_rank": 307,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 307,
            "gp_value": 43.0,
            "gp_rank": 280,
            "ab_value": 75.0,
            "ab_rank": 371,
            "r_value": 11.0,
            "r_rank": 327,
            "h_value": 10.0,
            "h_rank": 412,
            "avg_value": 0.1333333,
            "avg_rank": null,
            "2b_value": 4.0,
            "2b_rank": 307,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 1.0,
            "hr_rank": 365,
            "rbi_value": 11.0,
            "rbi_rank": 306,
            "tb_value": 17.0,
            "tb_rank": 2202,
            "bb_value": 9.0,
            "bb_rank": 295,
            "so_value": 20.0,
            "so_rank": 352,
            "sb_value": 3.0,
            "sb_rank": 148,
            "obp_value": 0.2352941,
            "obp_rank": "-",
            "slg_value": 0.2266666,
            "slg_rank": "-",
            "ops_value": 0.4619607,
            "ops_rank": null,
            "war_value": 0.08,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 68.0,
          "k_percent": 23.3,
          "bb_percent": 10.5,
          "woba": 0.219,
          "xwoba": 0.268,
          "xba": 0.194,
          "xslg": 0.296,
          "sweet_spot_percent": 21.4,
          "barrel_batted_rate": 5.4,
          "hard_hit_percent": 35.7,
          "exit_velocity_avg": 86.5,
          "launch_angle_avg": 13.4,
          "whiff_percent": 23.4,
          "swing_percent": 43.4
        },
        "components": {
          "expected_quality": -0.883,
          "regression_edge": 1.4,
          "xwoba_edge": -1.0286,
          "xba_edge": -1.2714,
          "xslg_edge": -1.0857,
          "barrel_edge": -0.3111,
          "hard_hit_edge": -0.4,
          "exit_velocity_edge": -0.92,
          "sweet_spot_edge": -1.9833,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "SS",
        "player_id": "806198",
        "player_name": "Cooper Pratt",
        "offense_factor": 0.9409,
        "quality_score": -0.7874,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "806198",
          "espn_id": 5149101,
          "player_name": "Cooper Pratt",
          "team": "MIL",
          "role": "batter",
          "espn_rank": 322,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 322,
            "gp_value": 2.0,
            "gp_rank": 548,
            "ab_value": 7.0,
            "ab_rank": 533,
            "r_value": 1.0,
            "r_rank": 503,
            "h_value": 2.0,
            "h_rank": 509,
            "avg_value": 0.2857142,
            "avg_rank": null,
            "2b_value": 0.0,
            "2b_rank": 486,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 0.0,
            "hr_rank": 441,
            "rbi_value": 1.0,
            "rbi_rank": 498,
            "tb_value": 2.0,
            "tb_rank": 2706,
            "bb_value": 0.0,
            "bb_rank": 521,
            "so_value": 2.0,
            "so_rank": 534,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.2857142,
            "obp_rank": "-",
            "slg_value": 0.2857142,
            "slg_rank": "-",
            "ops_value": 0.5714284,
            "ops_rank": null,
            "war_value": 0.05,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 0.0,
          "k_percent": 28.6,
          "bb_percent": 0.0,
          "woba": 0.255,
          "xwoba": 0.188,
          "xba": 0.202,
          "xslg": 0.225,
          "sweet_spot_percent": 20.0,
          "barrel_batted_rate": 0.0,
          "hard_hit_percent": 40.0,
          "exit_velocity_avg": 87.8,
          "launch_angle_avg": -0.1,
          "whiff_percent": 31.3,
          "swing_percent": 53.3
        },
        "components": {
          "expected_quality": -1.723,
          "regression_edge": -1.9143,
          "xwoba_edge": -2.5,
          "xba_edge": -1.0429,
          "xslg_edge": -2.1,
          "barrel_edge": -1.5111,
          "hard_hit_edge": 0.2143,
          "exit_velocity_edge": -0.4,
          "sweet_spot_edge": -2.2167,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "3B",
        "player_id": "687401",
        "player_name": "Joey Ortiz",
        "offense_factor": 0.9873,
        "quality_score": -0.1696,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "687401",
          "espn_id": 42958,
          "player_name": "Joey Ortiz",
          "team": "MIL",
          "role": "batter",
          "espn_rank": 266,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 266,
            "gp_value": 61.0,
            "gp_rank": 168,
            "ab_value": 145.0,
            "ab_rank": 247,
            "r_value": 18.0,
            "r_rank": 232,
            "h_value": 30.0,
            "h_rank": 265,
            "avg_value": 0.2068965,
            "avg_rank": null,
            "2b_value": 5.0,
            "2b_rank": 259,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 1.0,
            "hr_rank": 365,
            "rbi_value": 14.0,
            "rbi_rank": 266,
            "tb_value": 38.0,
            "tb_rank": 2007,
            "bb_value": 20.0,
            "bb_rank": 146,
            "so_value": 27.0,
            "so_rank": 293,
            "sb_value": 5.0,
            "sb_rank": 94,
            "obp_value": 0.2994011,
            "obp_rank": "-",
            "slg_value": 0.2620689,
            "slg_rank": "-",
            "ops_value": 0.56147,
            "ops_rank": null,
            "war_value": 0.22,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 127.0,
          "k_percent": 15.9,
          "bb_percent": 11.8,
          "woba": 0.263,
          "xwoba": 0.297,
          "xba": 0.231,
          "xslg": 0.3,
          "sweet_spot_percent": 22.0,
          "barrel_batted_rate": 3.3,
          "hard_hit_percent": 33.3,
          "exit_velocity_avg": 87.3,
          "launch_angle_avg": 7.3,
          "whiff_percent": 17.5,
          "swing_percent": 43.2
        },
        "components": {
          "expected_quality": -0.4998,
          "regression_edge": 0.9714,
          "xwoba_edge": -0.2,
          "xba_edge": -0.2143,
          "xslg_edge": -1.0286,
          "barrel_edge": -0.7778,
          "hard_hit_edge": -0.7429,
          "exit_velocity_edge": -0.6,
          "sweet_spot_edge": -1.8833,
          "launch_angle_hr_bonus": 0.0
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "away": {
    "applied": true,
    "offense_factor": 0.991,
    "raw_average_factor": 0.9899,
    "team_espn_average_rank": 241.88,
    "coverage_weight": 0.8889,
    "covered_batters": 8,
    "missing_batters": 1,
    "players": [
      {
        "position": "SS",
        "player_id": "677587",
        "player_name": "Brayan Rocchio",
        "offense_factor": 0.9872,
        "quality_score": -0.1701,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "677587",
          "espn_id": 41217,
          "player_name": "Brayan Rocchio",
          "team": "CLE",
          "role": "batter",
          "espn_rank": 57,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 57,
            "gp_value": 71.0,
            "gp_rank": 49,
            "ab_value": 230.0,
            "ab_rank": 121,
            "r_value": 29.0,
            "r_rank": 128,
            "h_value": 61.0,
            "h_rank": 93,
            "avg_value": 0.2652173,
            "avg_rank": 58.0,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 5.0,
            "hr_rank": 184,
            "rbi_value": 32.0,
            "rbi_rank": 96,
            "tb_value": 89.0,
            "tb_rank": 833,
            "bb_value": 23.0,
            "bb_rank": 109,
            "so_value": 36.0,
            "so_rank": 226,
            "sb_value": 12.0,
            "sb_rank": 21,
            "obp_value": 0.3460076,
            "obp_rank": "61",
            "slg_value": 0.3869565,
            "slg_rank": "115",
            "ops_value": 0.7329641,
            "ops_rank": 176.0,
            "war_value": 1.89,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 197.0,
          "k_percent": 13.6,
          "bb_percent": 8.7,
          "woba": 0.328,
          "xwoba": 0.311,
          "xba": 0.25,
          "xslg": 0.356,
          "sweet_spot_percent": 31.7,
          "barrel_batted_rate": 3.1,
          "hard_hit_percent": 32.5,
          "exit_velocity_avg": 86.7,
          "launch_angle_avg": 12.1,
          "whiff_percent": 23.5,
          "swing_percent": 48.5
        },
        "components": {
          "expected_quality": -0.1419,
          "regression_edge": -0.4857,
          "xwoba_edge": 0.2,
          "xba_edge": 0.3286,
          "xslg_edge": -0.2286,
          "barrel_edge": -0.8222,
          "hard_hit_edge": -0.8571,
          "exit_velocity_edge": -0.84,
          "sweet_spot_edge": -0.2667,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "1B",
        "player_id": "656555",
        "player_name": "Rhys Hoskins",
        "offense_factor": 0.9868,
        "quality_score": -0.1764,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "656555",
          "espn_id": 35291,
          "player_name": "Rhys Hoskins",
          "team": "CLE",
          "role": "batter",
          "espn_rank": 471,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 471,
            "gp_value": 58.0,
            "gp_rank": 185,
            "ab_value": 165.0,
            "ab_rank": 213,
            "r_value": 24.0,
            "r_rank": 172,
            "h_value": 30.0,
            "h_rank": 265,
            "avg_value": 0.1818181,
            "avg_rank": null,
            "2b_value": 12.0,
            "2b_rank": 80,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 6.0,
            "hr_rank": 156,
            "rbi_value": 24.0,
            "rbi_rank": 173,
            "tb_value": 60.0,
            "tb_rank": 1201,
            "bb_value": 34.0,
            "bb_rank": 40,
            "so_value": 61.0,
            "so_rank": 78,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3219512,
            "obp_rank": "-",
            "slg_value": 0.3636363,
            "slg_rank": "-",
            "ops_value": 0.6855875,
            "ops_rank": null,
            "war_value": -0.25,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 149.0,
          "k_percent": 29.8,
          "bb_percent": 16.6,
          "woba": 0.31,
          "xwoba": 0.295,
          "xba": 0.175,
          "xslg": 0.312,
          "sweet_spot_percent": 34.3,
          "barrel_batted_rate": 11.1,
          "hard_hit_percent": 41.7,
          "exit_velocity_avg": 88.6,
          "launch_angle_avg": 24.1,
          "whiff_percent": 30.3,
          "swing_percent": 40.8
        },
        "components": {
          "expected_quality": -0.2331,
          "regression_edge": -0.4286,
          "xwoba_edge": -0.2571,
          "xba_edge": -1.8143,
          "xslg_edge": -0.8571,
          "barrel_edge": 0.9556,
          "hard_hit_edge": 0.4571,
          "exit_velocity_edge": -0.08,
          "sweet_spot_edge": 0.1667,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "LF",
        "player_id": "681807",
        "player_name": "David Fry",
        "offense_factor": 0.9682,
        "quality_score": -0.4238,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "681807",
          "espn_id": 41672,
          "player_name": "David Fry",
          "team": "CLE",
          "role": "batter",
          "espn_rank": 314,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 314,
            "gp_value": 45.0,
            "gp_rank": 266,
            "ab_value": 98.0,
            "ab_rank": 325,
            "r_value": 13.0,
            "r_rank": 302,
            "h_value": 22.0,
            "h_rank": 320,
            "avg_value": 0.2244897,
            "avg_rank": null,
            "2b_value": 4.0,
            "2b_rank": 307,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 3.0,
            "hr_rank": 243,
            "rbi_value": 8.0,
            "rbi_rank": 346,
            "tb_value": 35.0,
            "tb_rank": 1744,
            "bb_value": 17.0,
            "bb_rank": 181,
            "so_value": 35.0,
            "so_rank": 235,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3391304,
            "obp_rank": "-",
            "slg_value": 0.3571428,
            "slg_rank": "-",
            "ops_value": 0.6962732,
            "ops_rank": null,
            "war_value": 0.06,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 84.0,
          "k_percent": 30.4,
          "bb_percent": 14.8,
          "woba": 0.314,
          "xwoba": 0.269,
          "xba": 0.191,
          "xslg": 0.271,
          "sweet_spot_percent": 31.7,
          "barrel_batted_rate": 6.3,
          "hard_hit_percent": 31.7,
          "exit_velocity_avg": 86.1,
          "launch_angle_avg": 16.1,
          "whiff_percent": 31.0,
          "swing_percent": 42.2
        },
        "components": {
          "expected_quality": -0.8858,
          "regression_edge": -1.2857,
          "xwoba_edge": -1.0,
          "xba_edge": -1.3571,
          "xslg_edge": -1.4429,
          "barrel_edge": -0.1111,
          "hard_hit_edge": -0.9714,
          "exit_velocity_edge": -1.08,
          "sweet_spot_edge": -0.2667,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "2B",
        "player_id": "683953",
        "player_name": "Travis Bazzana",
        "offense_factor": 0.9919,
        "quality_score": -0.1074,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "683953",
          "espn_id": 5007707,
          "player_name": "Travis Bazzana",
          "team": "CLE",
          "role": "batter",
          "espn_rank": 132,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 132,
            "gp_value": 43.0,
            "gp_rank": 280,
            "ab_value": 157.0,
            "ab_rank": 231,
            "r_value": 17.0,
            "r_rank": 240,
            "h_value": 39.0,
            "h_rank": 210,
            "avg_value": 0.2484076,
            "avg_rank": null,
            "2b_value": 10.0,
            "2b_rank": 125,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 4.0,
            "hr_rank": 203,
            "rbi_value": 17.0,
            "rbi_rank": 244,
            "tb_value": 63.0,
            "tb_rank": 1088,
            "bb_value": 22.0,
            "bb_rank": 123,
            "so_value": 35.0,
            "so_rank": 235,
            "sb_value": 11.0,
            "sb_rank": 28,
            "obp_value": 0.3461538,
            "obp_rank": "-",
            "slg_value": 0.4012738,
            "slg_rank": "-",
            "ops_value": 0.7474276,
            "ops_rank": null,
            "war_value": 0.99,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 109.0,
          "k_percent": 19.2,
          "bb_percent": 12.1,
          "woba": 0.332,
          "xwoba": 0.309,
          "xba": 0.235,
          "xslg": 0.352,
          "sweet_spot_percent": 29.3,
          "barrel_batted_rate": 3.3,
          "hard_hit_percent": 35.5,
          "exit_velocity_avg": 88.6,
          "launch_angle_avg": 13.1,
          "whiff_percent": 25.0,
          "swing_percent": 44.2
        },
        "components": {
          "expected_quality": -0.1451,
          "regression_edge": -0.6571,
          "xwoba_edge": 0.1429,
          "xba_edge": -0.1,
          "xslg_edge": -0.2857,
          "barrel_edge": -0.7778,
          "hard_hit_edge": -0.4286,
          "exit_velocity_edge": -0.08,
          "sweet_spot_edge": -0.6667,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "DH",
        "player_id": "700932",
        "player_name": "Kyle Manzardo",
        "offense_factor": 1.0122,
        "quality_score": 0.1627,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "700932",
          "espn_id": 4917927,
          "player_name": "Kyle Manzardo",
          "team": "CLE",
          "role": "batter",
          "espn_rank": 236,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 236,
            "gp_value": 64.0,
            "gp_rank": 146,
            "ab_value": 195.0,
            "ab_rank": 166,
            "r_value": 24.0,
            "r_rank": 172,
            "h_value": 46.0,
            "h_rank": 171,
            "avg_value": 0.2358974,
            "avg_rank": 115.0,
            "2b_value": 7.0,
            "2b_rank": 206,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 22.0,
            "rbi_rank": 190,
            "tb_value": 76.0,
            "tb_rank": 878,
            "bb_value": 23.0,
            "bb_rank": 109,
            "so_value": 73.0,
            "so_rank": 38,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3243243,
            "obp_rank": "95",
            "slg_value": 0.3897435,
            "slg_rank": "113",
            "ops_value": 0.7140678,
            "ops_rank": 208.0,
            "war_value": 0.36,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 165.0,
          "k_percent": 32.9,
          "bb_percent": 10.4,
          "woba": 0.319,
          "xwoba": 0.313,
          "xba": 0.226,
          "xslg": 0.389,
          "sweet_spot_percent": 34.1,
          "barrel_batted_rate": 11.4,
          "hard_hit_percent": 42.3,
          "exit_velocity_avg": 89.3,
          "launch_angle_avg": 17.3,
          "whiff_percent": 30.4,
          "swing_percent": 46.4
        },
        "components": {
          "expected_quality": 0.2802,
          "regression_edge": -0.1714,
          "xwoba_edge": 0.2571,
          "xba_edge": -0.3571,
          "xslg_edge": 0.2429,
          "barrel_edge": 1.0222,
          "hard_hit_edge": 0.5429,
          "exit_velocity_edge": 0.2,
          "sweet_spot_edge": 0.1333,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "3B",
        "player_id": "672356",
        "player_name": "Gabriel Arias",
        "offense_factor": 1.0159,
        "quality_score": 0.2114,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "672356",
          "espn_id": 40344,
          "player_name": "Gabriel Arias",
          "team": "CLE",
          "role": "batter",
          "espn_rank": 253,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 253,
            "gp_value": 11.0,
            "gp_rank": 480,
            "ab_value": 34.0,
            "ab_rank": 453,
            "r_value": 2.0,
            "r_rank": 476,
            "h_value": 8.0,
            "h_rank": 437,
            "avg_value": 0.2352941,
            "avg_rank": null,
            "2b_value": 1.0,
            "2b_rank": 430,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 2.0,
            "hr_rank": 301,
            "rbi_value": 5.0,
            "rbi_rank": 401,
            "tb_value": 15.0,
            "tb_rank": 2158,
            "bb_value": 2.0,
            "bb_rank": 442,
            "so_value": 14.0,
            "so_rank": 407,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.2777777,
            "obp_rank": "-",
            "slg_value": 0.4411764,
            "slg_rank": "-",
            "ops_value": 0.7189541,
            "ops_rank": null,
            "war_value": 0.27,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 31.0,
          "k_percent": 38.9,
          "bb_percent": 5.6,
          "woba": 0.312,
          "xwoba": 0.305,
          "xba": 0.235,
          "xslg": 0.423,
          "sweet_spot_percent": 30.0,
          "barrel_batted_rate": 15.0,
          "hard_hit_percent": 55.0,
          "exit_velocity_avg": 95.0,
          "launch_angle_avg": 5.5,
          "whiff_percent": 42.4,
          "swing_percent": 45.5
        },
        "components": {
          "expected_quality": 0.5788,
          "regression_edge": -0.2,
          "xwoba_edge": 0.0286,
          "xba_edge": -0.1,
          "xslg_edge": 0.7286,
          "barrel_edge": 1.8222,
          "hard_hit_edge": 2.3571,
          "exit_velocity_edge": 2.48,
          "sweet_spot_edge": -0.55,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "CF",
        "player_id": "656413",
        "player_name": "Stuart Fairchild",
        "offense_factor": 0.9777,
        "quality_score": -0.2974,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "656413",
          "espn_id": 40346,
          "player_name": "Stuart Fairchild",
          "team": "CLE",
          "role": "batter",
          "espn_rank": 292,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 292,
            "gp_value": 9.0,
            "gp_rank": 492,
            "ab_value": 14.0,
            "ab_rank": 512,
            "r_value": 3.0,
            "r_rank": 447,
            "h_value": 3.0,
            "h_rank": 501,
            "avg_value": 0.2142857,
            "avg_rank": null,
            "2b_value": 0.0,
            "2b_rank": 486,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 0.0,
            "hr_rank": 441,
            "rbi_value": 1.0,
            "rbi_rank": 498,
            "tb_value": 3.0,
            "tb_rank": 2698,
            "bb_value": 6.0,
            "bb_rank": 359,
            "so_value": 10.0,
            "so_rank": 445,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.4761904,
            "obp_rank": "-",
            "slg_value": 0.2142857,
            "slg_rank": "-",
            "ops_value": 0.6904761,
            "ops_rank": null,
            "war_value": 0.14,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 0.0,
          "k_percent": 47.6,
          "bb_percent": 28.6,
          "woba": 0.363,
          "xwoba": 0.32,
          "xba": 0.109,
          "xslg": 0.187,
          "sweet_spot_percent": 0.0,
          "barrel_batted_rate": 0.0,
          "hard_hit_percent": 50.0,
          "exit_velocity_avg": 96.0,
          "launch_angle_avg": 14.0,
          "whiff_percent": 66.7,
          "swing_percent": 42.4
        },
        "components": {
          "expected_quality": -0.5686,
          "regression_edge": -1.2286,
          "xwoba_edge": 0.4571,
          "xba_edge": -2.5,
          "xslg_edge": -2.5,
          "barrel_edge": -1.5111,
          "hard_hit_edge": 1.6429,
          "exit_velocity_edge": 2.5,
          "sweet_spot_edge": -2.5,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "C",
        "player_id": "595978",
        "player_name": "Austin Hedges",
        "offense_factor": 0.9794,
        "quality_score": -0.2746,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "595978",
          "espn_id": 32168,
          "player_name": "Austin Hedges",
          "team": "CLE",
          "role": "batter",
          "espn_rank": 180,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 180,
            "gp_value": 34.0,
            "gp_rank": 333,
            "ab_value": 96.0,
            "ab_rank": 331,
            "r_value": 12.0,
            "r_rank": 310,
            "h_value": 26.0,
            "h_rank": 288,
            "avg_value": 0.2708333,
            "avg_rank": null,
            "2b_value": 6.0,
            "2b_rank": 235,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 1.0,
            "hr_rank": 365,
            "rbi_value": 9.0,
            "rbi_rank": 334,
            "tb_value": 35.0,
            "tb_rank": 2006,
            "bb_value": 10.0,
            "bb_rank": 282,
            "so_value": 18.0,
            "so_rank": 370,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3364485,
            "obp_rank": "-",
            "slg_value": 0.3645833,
            "slg_rank": "-",
            "ops_value": 0.7010318,
            "ops_rank": null,
            "war_value": 0.6,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 80.0,
          "k_percent": 16.4,
          "bb_percent": 9.1,
          "woba": 0.314,
          "xwoba": 0.286,
          "xba": 0.246,
          "xslg": 0.32,
          "sweet_spot_percent": 28.0,
          "barrel_batted_rate": 2.4,
          "hard_hit_percent": 30.5,
          "exit_velocity_avg": 86.0,
          "launch_angle_avg": 6.4,
          "whiff_percent": 22.8,
          "swing_percent": 45.1
        },
        "components": {
          "expected_quality": -0.5794,
          "regression_edge": -0.8,
          "xwoba_edge": -0.5143,
          "xba_edge": 0.2143,
          "xslg_edge": -0.7429,
          "barrel_edge": -0.9778,
          "hard_hit_edge": -1.1429,
          "exit_velocity_edge": -1.12,
          "sweet_spot_edge": -0.8833,
          "launch_angle_hr_bonus": 0.0
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "reason": "Baseball Savant hitter xwOBA, xBA, xSLG, exit velocity, launch angle, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted offense; ESPN rank is attached for reporting only"
}

Savant Pitcher Quality

Source: data/all_players_stats.csv embedded Savant pitcher and movement features. Starter quality modifies opposing run scoring and pitcher strikeout/walk/homer expectations.

TeamPitcherAvailableESPN RankQualitySample WtRun PrevK FactorBB FactorHR FactorRegressionxwOBAwOBAK%BB%Whiff%Barrel%HardHit%
Away CLETrue130.38820.99600.96701.02560.97210.9312neutral0.28800.280025.607.8027.106.1034
Home MILTrue2300.21270.45200.98191.01470.97290.9958neutral0.27300.285024.906.2029937.70

Pitch Movement And Arsenal

TeamPitcherMovement AvailablePrimary PitchPitchesVeloSpinAxisHBIVBDropRel XRel ZExtensionArm AngleMovement Score
Away CLETrueNone9288.82208400000000-0.0508
Home MILTrueNone3590.602516000000000.0486
Run FactorValue
away_runs_vs_home_pitcher0.9918
home_runs_vs_away_pitcher0.9671
home_pitcher_quality_edge-0.1755
Raw Savant Pitcher Quality JSON
{
  "applied": true,
  "home_pitcher": {
    "available": true,
    "pitcher_id": "675660",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 113.0,
      "k_percent": 24.9,
      "bb_percent": 6.2,
      "woba": 0.285,
      "xwoba": 0.273,
      "sweet_spot_percent": 34.4,
      "barrel_batted_rate": 9.0,
      "hard_hit_percent": 37.7,
      "avg_best_speed": 77.19,
      "avg_hyper_speed": 93.7911,
      "whiff_percent": 29.0,
      "swing_percent": 50.3
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": 0.5542,
      "command_and_miss": 0.4693,
      "regression_edge": 0.3429,
      "xwoba_edge": 1.2,
      "barrel_edge": -0.3778,
      "hard_hit_edge": 0.0857,
      "whiff_edge": 0.4714,
      "bb_edge": 0.75,
      "pitch_design_score": 0.0486
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "675660",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 35,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 35,
        "pitch_usage": 0.0,
        "release_speed": 90.59743564984379,
        "release_spin_rate": 2516.0834298625896,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 35,
          "pitch_usage": 0.0,
          "release_speed": 90.59743564984379,
          "release_spin_rate": 2516.0834298625896,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 90.5974,
        "release_spin_rate": 2516.0834,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": 0.0486,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": 0.3474,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": 0.2127,
    "sample_weight": 0.452,
    "run_prevention_factor": 0.9819,
    "strikeout_factor": 1.0147,
    "walk_factor": 0.9729,
    "homer_factor": 0.9958,
    "woba_minus_xwoba": 0.012,
    "regression_flag": "neutral",
    "espn_rank": {
      "available": true,
      "player_id": "675660",
      "espn_id": 4315203,
      "player_name": "Shane Drohan",
      "team": "MIL",
      "role": "pitcher",
      "espn_rank": 230,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 230,
        "gp_value": 14.0,
        "gp_rank": 279,
        "gs_value": 4.0,
        "gs_rank": 175,
        "qs_value": 1.0,
        "qs_rank": 134,
        "era_value": 3.5859,
        "era_rank": null,
        "w_value": 3.0,
        "w_rank": 107,
        "l_value": 2.0,
        "l_rank": 185,
        "sv_value": 1.0,
        "sv_rank": 86,
        "hld_value": 2.0,
        "hld_rank": 165,
        "ip_value": 42.2,
        "ip_rank": 151,
        "h_value": 39.0,
        "h_rank": 152,
        "er_value": 17.0,
        "er_rank": 186,
        "hr_value": 3.0,
        "hr_rank": 258,
        "bb_value": 11.0,
        "bb_rank": 272,
        "k_value": 44.0,
        "k_rank": 138,
        "k_per_9_value": 9.28125,
        "k_per_9_rank": 24,
        "whip_value": 1.1718,
        "whip_rank": null,
        "war_value": 0.35,
        "war_rank": null
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "away_pitcher": {
    "available": true,
    "pitcher_id": "800048",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 249.0,
      "k_percent": 25.6,
      "bb_percent": 7.8,
      "woba": 0.28,
      "xwoba": 0.288,
      "sweet_spot_percent": 34.9,
      "barrel_batted_rate": 6.1,
      "hard_hit_percent": 34.0,
      "avg_best_speed": 76.1561,
      "avg_hyper_speed": 93.5265,
      "whiff_percent": 27.1,
      "swing_percent": 48.8
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": 0.5865,
      "command_and_miss": 0.3393,
      "regression_edge": -0.2286,
      "xwoba_edge": 0.7714,
      "barrel_edge": 0.2667,
      "hard_hit_edge": 0.6143,
      "whiff_edge": 0.2,
      "bb_edge": 0.35,
      "pitch_design_score": -0.0508
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "800048",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 92,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 92,
        "pitch_usage": 0.0,
        "release_speed": 88.82188152318957,
        "release_spin_rate": 2083.526076207552,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 92,
          "pitch_usage": 0.0,
          "release_speed": 88.82188152318957,
          "release_spin_rate": 2083.526076207552,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 88.8219,
        "release_spin_rate": 2083.5261,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": -0.0508,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": -0.3628,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": 0.3882,
    "sample_weight": 0.996,
    "run_prevention_factor": 0.967,
    "strikeout_factor": 1.0256,
    "walk_factor": 0.9721,
    "homer_factor": 0.9312,
    "woba_minus_xwoba": -0.008,
    "regression_flag": "neutral",
    "espn_rank": {
      "available": true,
      "player_id": "800048",
      "espn_id": 4619898,
      "player_name": "Parker Messick",
      "team": "CLE",
      "role": "pitcher",
      "espn_rank": 13,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 13,
        "gp_value": 14.0,
        "gp_rank": 279,
        "gs_value": 14.0,
        "gs_rank": 37,
        "qs_value": 4.0,
        "qs_rank": 73,
        "era_value": 2.6776,
        "era_rank": 10.0,
        "w_value": 6.0,
        "w_rank": 23,
        "l_value": 3.0,
        "l_rank": 110,
        "sv_value": 0.0,
        "sv_rank": 172,
        "hld_value": 0.0,
        "hld_rank": 256,
        "ip_value": 80.2,
        "ip_rank": 37,
        "h_value": 63.0,
        "h_rank": 88,
        "er_value": 24.0,
        "er_rank": 118,
        "hr_value": 8.0,
        "hr_rank": 79,
        "bb_value": 25.0,
        "bb_rank": 54,
        "k_value": 82.0,
        "k_rank": 25,
        "k_per_9_value": 9.14876,
        "k_per_9_rank": 18,
        "whip_value": 1.0909,
        "whip_rank": 18.0,
        "war_value": 2.5,
        "war_rank": 1.0
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "run_factors": {
    "away_runs_vs_home_pitcher": 0.9918,
    "home_runs_vs_away_pitcher": 0.9671,
    "home_pitcher_quality_edge": -0.1755
  },
  "score_before": {
    "away_runs": 1.0,
    "home_runs": 1.0
  },
  "score_after": {
    "away_runs": 0.9918,
    "home_runs": 0.9671,
    "home_win_probability": 0.4947
  },
  "reason": "Baseball Savant xwOBA, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted starter run prevention"
}

Team Form Snapshot

TeamLast-10 W-LWin %R/GRA/GRun DiffStreakOffenseDefense
Away CLE15-500.2310.902.80-126coldstrong
Home MIL21-400.3441.602.70-64coldstrong

Season Run Differential

TeamRecordWin %Run DiffRD/GameAvailable
Away CLE39-350.527-9-0.122True
Home MIL45-260.6341181.662True
Signal--1.7841.944applied=True

Recent Head-to-Head

DateMatchupScoreWinnerMarginType
------

Player/Game Reconciliation

LayerABHRHRRBIBBSO
Game target CLE--1----
Game target MIL--2----
Player finalized CLE299100210
Player finalized MIL33960728
Player model fractional CLE28.676.203.140.802.983.679.01
Player model fractional MIL31.427.995.491.405.163.427.46
Simulation box CLE314101311
Simulation box MIL27321229

If player finalized rows and game target disagree, the report now exposes that gap instead of hiding it. Fractional model rows show the unrounded prop layer before box-score realization.

Pitching Snapshot

TeamRolePitcherPre IPPre ERPre SOPre HPre BBWeighted ERAWeighted WHIPBox Sync
Away CLEStarterParker Messick628213.571.26True
Away CLEMiddle RelieverCade Smith1.2000012.951.09True
Away CLEMiddle RelieverHunter Gaddis0.1001103.971.25True
Home MILStarterShane Drohan515434.231.17True
Home MILMiddle RelieverAaron Ashby1.1000004.401.31True
Home MILMiddle RelieverAbner Uribe102003.591.30True
Home MILMiddle RelieverTrevor Megill102003.641.24True
Home MILMiddle RelieverGrant Anderson0.2002003.361.04True
Market-line comparison is not rendered because no local odds or sportsbook line CSV was found in data/. Add a real odds source before using market deltas as a model feature.

Player Boost/Deboost Impact Summary

SideTeamRolePosPlayerDominantChangedBoostedDeboostedBetterWorseLargest MetricLargest DeltaDirectionEffect
homeMILbatterSSCooper Prattworse81708predicted_SO2.0000boostworse
homeMILbatter2BBrice Turangworse114738predicted_SO1.9090boostworse
awayCLEbatterDHKyle Manzardoworse1129110predicted_SO1.8410boostworse
homeMILbatterRFJake Bauersbetter107382predicted_AB-1.6400deboostworse
awayCLEbatterLFDavid Fryworse103728predicted_AB1.5000boostbetter
awayCLEbatterCFStuart Fairchildworse91827predicted_AB1.5000boostbetter
homeMILbatterCGary Sánchezworse115647predicted_SO1.3500boostworse
homeMILbatterLFJackson Chourioworse102837predicted_H-1.2400deboostworse
awayCLEbatterRFKahlil Watsonworse113829predicted_AB-1.2110deboostworse
awayCLEbatter2BTravis Bazzanaworse11110011predicted_SO1.1860boostworse
awayCLEbatterSSBrayan Rocchioworse113847predicted_2B0.8710boostbetter
awayCLEbatter3BGabriel Ariasworse112938predicted_AB0.8500boostbetter
homeMILbatter1BAndrew Vaughndeboosted104655predicted_2B0.6880boostbetter
homeMILbatterCFBlake Perkinsworse101928predicted_SO-0.6670deboostbetter
awayCLEbatter1BRhys Hoskinsworse113847predicted_H-0.6600deboostworse
awayCLEbatterCAustin Hedgesworse104637predicted_RBI0.6500boostbetter
homeMILbatter3BJoey Ortizworse101928predicted_H-0.5900deboostworse
homeMILbatterDHChristian Yelichworse92736predicted_RBI-0.5500deboostworse
homeMILpitcherMiddle RelieverGrant Andersonworse10101predicted_IP-0.4667deboostworse
homeMILpitcherMiddle RelieverAaron Ashbyworse10101predicted_IP-0.2333deboostworse
awayCLEpitcherMiddle RelieverCade Smithbetter11010predicted_IP0.2000boostbetter

This table ranks players whose JSON evolution changed materially. Boost/deboost is numeric movement; better/worse is role-aware.

Away Team: CLE

Away Pitcher Deep Analysis

FieldValue
PitcherParker Messick
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score0.3882
ESPN Rank13
Movement AvailableTrue
Primary Pitch-
Movement Score-0.0508
Avg Velo88.8219
Avg Spin2083.5261
HB Inches0
IVB Inches0
Release Extension0
Pre IP6
Pre ER2
Pre H2
Pre BB1
Pre SO8
Season ERA2.6777
Season WHIP1.0909
Role Avg IP5.7620
Recent Avg IP5.4000
Last Start IP5.2000
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "CLE",
    "games": 82,
    "wins": 43,
    "losses": 39,
    "win_pct": 0.5244,
    "runs_scored": 340.0,
    "runs_allowed": 345.0,
    "run_differential": -5.0,
    "run_differential_per_game": -0.061,
    "avg_runs_scored": 4.1463,
    "avg_runs_allowed": 4.2073,
    "offense_index": 0.9195,
    "defense_index": 1.0718,
    "current_streak": "L3",
    "recent": {
      "games": 10,
      "wins": 3,
      "losses": 7,
      "win_pct": 0.3,
      "avg_runs_scored": 2.8,
      "avg_runs_allowed": 4.2,
      "run_differential": -14.0
    },
    "available": true,
    "quality_score": -0.0567
  },
  "opponent": {
    "team": "MIL",
    "games": 81,
    "wins": 49,
    "losses": 32,
    "win_pct": 0.6049,
    "runs_scored": 424.0,
    "runs_allowed": 301.0,
    "run_differential": 123.0,
    "run_differential_per_game": 1.5185,
    "avg_runs_scored": 5.2346,
    "avg_runs_allowed": 3.716,
    "offense_index": 1.1608,
    "defense_index": 1.2135,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 7,
      "losses": 3,
      "win_pct": 0.7,
      "avg_runs_scored": 7.1,
      "avg_runs_allowed": 4.4,
      "run_differential": 27.0
    },
    "available": true,
    "quality_score": 0.3444
  },
  "edges": {
    "quality_edge": -0.4011,
    "offense_edge": -0.0805,
    "opponent_offense_edge": 0.1608,
    "defense_strength": 0.0718,
    "opponent_defense_weakness": -0.2135,
    "recent_win_pct_edge": -0.4
  },
  "player_factors": {
    "ip": 0.9797,
    "run_prevention": 1.0386,
    "strikeout": 0.9751
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "800048",
    "profile": {
      "available": true,
      "pitcher_id": "800048",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 249.0,
        "k_percent": 25.6,
        "bb_percent": 7.8,
        "woba": 0.28,
        "xwoba": 0.288,
        "sweet_spot_percent": 34.9,
        "barrel_batted_rate": 6.1,
        "hard_hit_percent": 34.0,
        "avg_best_speed": 76.1561,
        "avg_hyper_speed": 93.5265,
        "whiff_percent": 27.1,
        "swing_percent": 48.8
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.5865,
        "command_and_miss": 0.3393,
        "regression_edge": -0.2286,
        "xwoba_edge": 0.7714,
        "barrel_edge": 0.2667,
        "hard_hit_edge": 0.6143,
        "whiff_edge": 0.2,
        "bb_edge": 0.35,
        "pitch_design_score": -0.0508
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "800048",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 92,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 92,
          "pitch_usage": 0.0,
          "release_speed": 88.82188152318957,
          "release_spin_rate": 2083.526076207552,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 92,
            "pitch_usage": 0.0,
            "release_speed": 88.82188152318957,
            "release_spin_rate": 2083.526076207552,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 88.8219,
          "release_spin_rate": 2083.5261,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.0508,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -0.3628,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.3882,
      "sample_weight": 0.996,
      "run_prevention_factor": 0.967,
      "strikeout_factor": 1.0256,
      "walk_factor": 0.9721,
      "homer_factor": 0.9312,
      "woba_minus_xwoba": -0.008,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "800048",
        "espn_id": 4619898,
        "player_name": "Parker Messick",
        "team": "CLE",
        "role": "pitcher",
        "espn_rank": 13,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 13,
          "gp_value": 14.0,
          "gp_rank": 279,
          "gs_value": 14.0,
          "gs_rank": 37,
          "qs_value": 4.0,
          "qs_rank": 73,
          "era_value": 2.6776,
          "era_rank": 10.0,
          "w_value": 6.0,
          "w_rank": 23,
          "l_value": 3.0,
          "l_rank": 110,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 80.2,
          "ip_rank": 37,
          "h_value": 63.0,
          "h_rank": 88,
          "er_value": 24.0,
          "er_rank": 118,
          "hr_value": 8.0,
          "hr_rank": 79,
          "bb_value": 25.0,
          "bb_rank": 54,
          "k_value": 82.0,
          "k_rank": 25,
          "k_per_9_value": 9.14876,
          "k_per_9_rank": 18,
          "whip_value": 1.0909,
          "whip_rank": 18.0,
          "war_value": 2.5,
          "war_rank": 1.0
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 2.0,
        "factor": 0.9671,
        "adjusted": 2
      },
      "predicted_H": {
        "original": 5.0,
        "factor": 0.9671,
        "adjusted": 5
      },
      "predicted_BB": {
        "original": 2.0,
        "factor": 0.9722,
        "adjusted": 2
      },
      "predicted_HR": {
        "original": 1.0,
        "factor": 0.9315,
        "adjusted": 1
      },
      "predicted_SO": {
        "original": 5.0,
        "factor": 1.0255,
        "adjusted": 5
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 55.0,
    "ER": 21,
    "H": 50,
    "BB": 18,
    "SO": 57,
    "HR": 7,
    "ERA": 3.4363636363636365,
    "WHIP": 1.2363636363636363,
    "K9": 9.327272727272728,
    "HR9": 1.1454545454545455,
    "games_pitched": 10,
    "quality_starts": 1,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 1,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-10T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "800048",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 92,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 92,
    "pitch_usage": 0.0,
    "release_speed": 88.82188152318957,
    "release_spin_rate": 2083.526076207552,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 92,
      "pitch_usage": 0.0,
      "release_speed": 88.82188152318957,
      "release_spin_rate": 2083.526076207552,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 88.8219,
    "release_spin_rate": 2083.5261,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.0508,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -0.3628,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "role": "pitcher",
  "player_id": "800048",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 14,
  "reference_playing_time": 6.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 27.0,
        "ER": 10.0,
        "R": 12.0,
        "H": 24.0,
        "BB": 11.0,
        "SO": 24.0,
        "HR": 3.0,
        "BF": 115.0,
        "Pitches": 450.0
      },
      "per_game": {
        "IP": 5.1,
        "ER": 2.0,
        "R": 2.4,
        "H": 4.8,
        "BB": 2.2,
        "SO": 4.8,
        "HR": 0.6,
        "BF": 23.0,
        "Pitches": 90.0
      },
      "rates": {
        "ERA": 3.3333,
        "WHIP": 1.2963,
        "ER_per_IP": 0.37037,
        "H_per_IP": 0.88889,
        "BB_per_IP": 0.40741,
        "SO_per_IP": 0.88889,
        "HR_per_IP": 0.11111
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 55.0,
        "ER": 21.0,
        "R": 23.0,
        "H": 50.0,
        "BB": 18.0,
        "SO": 57.0,
        "HR": 7.0,
        "BF": 227.0,
        "Pitches": 907.0
      },
      "per_game": {
        "IP": 5.1,
        "ER": 2.1,
        "R": 2.3,
        "H": 5.0,
        "BB": 1.8,
        "SO": 5.7,
        "HR": 0.7,
        "BF": 22.7,
        "Pitches": 90.7
      },
      "rates": {
        "ERA": 3.4364,
        "WHIP": 1.2364,
        "ER_per_IP": 0.38182,
        "H_per_IP": 0.90909,
        "BB_per_IP": 0.32727,
        "SO_per_IP": 1.03636,
        "HR_per_IP": 0.12727
      }
    },
    "season": {
      "games": 14,
      "totals": {
        "IP": 80.2,
        "ER": 24.0,
        "R": 26.0,
        "H": 63.0,
        "BB": 25.0,
        "SO": 82.0,
        "HR": 8.0,
        "BF": 320.0,
        "Pitches": 1270.0
      },
      "per_game": {
        "IP": 5.2,
        "ER": 1.7143,
        "R": 1.8571,
        "H": 4.5,
        "BB": 1.7857,
        "SO": 5.8571,
        "HR": 0.5714,
        "BF": 22.8571,
        "Pitches": 90.7143
      },
      "rates": {
        "ERA": 2.6777,
        "WHIP": 1.0909,
        "ER_per_IP": 0.29752,
        "H_per_IP": 0.78099,
        "BB_per_IP": 0.30992,
        "SO_per_IP": 1.01653,
        "HR_per_IP": 0.09917
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 5.2,
    "predicted_ER": 2.206,
    "predicted_H": 5.005,
    "predicted_BB": 2.005,
    "predicted_SO": 5.328,
    "predicted_HR": 0.682,
    "predicted_ERA": 3.5725,
    "predicted_WHIP": 1.2614
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.4612,
  "form_weight": 0.5388,
  "form_reliability": 0.7368,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 6.0,
      "form": 5.2,
      "final": 5.2,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 2.0,
      "form": 2.206,
      "final": 2.111,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 2.0,
      "form": 5.005,
      "final": 3.6191,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 2.005,
      "final": 1.5415,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 8.0,
      "form": 5.328,
      "final": 6.5603,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 1.0,
      "form": 0.682,
      "final": 0.8287,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.5725,
      "final": 3.5725,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2614,
      "final": 1.2614,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherCade Smith
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.4413
ESPN Rank107
Movement AvailableTrue
Primary Pitch-
Movement Score0.1442
Avg Velo92.3032
Avg Spin1832.1074
HB Inches0
IVB Inches0
Release Extension0
Pre IP1.2000
Pre ER0
Pre H0
Pre BB1
Pre SO0
Season ERA2.4796
Season WHIP1.0408
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "CLE",
    "games": 82,
    "wins": 43,
    "losses": 39,
    "win_pct": 0.5244,
    "runs_scored": 340.0,
    "runs_allowed": 345.0,
    "run_differential": -5.0,
    "run_differential_per_game": -0.061,
    "avg_runs_scored": 4.1463,
    "avg_runs_allowed": 4.2073,
    "offense_index": 0.9195,
    "defense_index": 1.0718,
    "current_streak": "L3",
    "recent": {
      "games": 10,
      "wins": 3,
      "losses": 7,
      "win_pct": 0.3,
      "avg_runs_scored": 2.8,
      "avg_runs_allowed": 4.2,
      "run_differential": -14.0
    },
    "available": true,
    "quality_score": -0.0567
  },
  "opponent": {
    "team": "MIL",
    "games": 81,
    "wins": 49,
    "losses": 32,
    "win_pct": 0.6049,
    "runs_scored": 424.0,
    "runs_allowed": 301.0,
    "run_differential": 123.0,
    "run_differential_per_game": 1.5185,
    "avg_runs_scored": 5.2346,
    "avg_runs_allowed": 3.716,
    "offense_index": 1.1608,
    "defense_index": 1.2135,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 7,
      "losses": 3,
      "win_pct": 0.7,
      "avg_runs_scored": 7.1,
      "avg_runs_allowed": 4.4,
      "run_differential": 27.0
    },
    "available": true,
    "quality_score": 0.3444
  },
  "edges": {
    "quality_edge": -0.4011,
    "offense_edge": -0.0805,
    "opponent_offense_edge": 0.1608,
    "defense_strength": 0.0718,
    "opponent_defense_weakness": -0.2135,
    "recent_win_pct_edge": -0.4
  },
  "player_factors": {
    "ip": 0.9797,
    "run_prevention": 1.0386,
    "strikeout": 0.9751
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "671922",
    "profile": {
      "available": true,
      "pitcher_id": "671922",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 102.0,
        "k_percent": 38.0,
        "bb_percent": 4.7,
        "woba": 0.255,
        "xwoba": 0.239,
        "sweet_spot_percent": 33.8,
        "barrel_batted_rate": 8.3,
        "hard_hit_percent": 44.4,
        "avg_best_speed": 82.4931,
        "avg_hyper_speed": 95.0214,
        "whiff_percent": 35.4,
        "swing_percent": 50.3
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.8568,
        "command_and_miss": 1.7064,
        "regression_edge": 0.4571,
        "xwoba_edge": 2.1714,
        "barrel_edge": -0.2222,
        "hard_hit_edge": -0.8714,
        "whiff_edge": 1.3857,
        "bb_edge": 1.125,
        "pitch_design_score": 0.1442
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "671922",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 23,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 23,
          "pitch_usage": 0.0,
          "release_speed": 92.3032049686205,
          "release_spin_rate": 1832.107424086915,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 23,
            "pitch_usage": 0.0,
            "release_speed": 92.3032049686205,
            "release_spin_rate": 1832.107424086915,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 92.3032,
          "release_spin_rate": 1832.1074,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": 0.1442,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": 1.0297,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.4413,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9625,
      "strikeout_factor": 1.0648,
      "walk_factor": 0.9595,
      "homer_factor": 0.9944,
      "woba_minus_xwoba": 0.016,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "671922",
        "espn_id": 4987924,
        "player_name": "Cade Smith",
        "team": "CLE",
        "role": "pitcher",
        "espn_rank": 107,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 107,
          "gp_value": 31.0,
          "gp_rank": 46,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.4795,
          "era_rank": null,
          "w_value": 2.0,
          "w_rank": 180,
          "l_value": 0.0,
          "l_rank": 430,
          "sv_value": 23.0,
          "sv_rank": 1,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 32.2,
          "ip_rank": 213,
          "h_value": 28.0,
          "h_rank": 233,
          "er_value": 9.0,
          "er_rank": 360,
          "hr_value": 1.0,
          "hr_rank": 453,
          "bb_value": 6.0,
          "bb_rank": 436,
          "k_value": 49.0,
          "k_rank": 119,
          "k_per_9_value": 13.5,
          "k_per_9_rank": 15,
          "whip_value": 1.0408,
          "whip_rank": null,
          "war_value": 0.91,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9831,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9831,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9818,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9975,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 3.0,
        "factor": 1.0292,
        "adjusted": 3
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 11.0,
    "ER": 2,
    "H": 9,
    "BB": 1,
    "SO": 18,
    "HR": 0,
    "ERA": 1.6363636363636365,
    "WHIP": 0.9090909090909091,
    "K9": 14.727272727272727,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "671922",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 23,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 23,
    "pitch_usage": 0.0,
    "release_speed": 92.3032049686205,
    "release_spin_rate": 1832.107424086915,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 23,
      "pitch_usage": 0.0,
      "release_speed": 92.3032049686205,
      "release_spin_rate": 1832.107424086915,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 92.3032,
    "release_spin_rate": 1832.1074,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": 0.1442,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": 1.0297,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.487,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5647,
    "prior_weight": 0.4353
  },
  "role": "pitcher",
  "player_id": "671922",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 31,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 6.0,
        "ER": 1.0,
        "R": 1.0,
        "H": 4.0,
        "BB": 1.0,
        "SO": 10.0,
        "HR": 0.0,
        "BF": 22.0,
        "Pitches": 90.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.8,
        "BB": 0.2,
        "SO": 2.0,
        "HR": 0.0,
        "BF": 4.4,
        "Pitches": 18.0
      },
      "rates": {
        "ERA": 1.5,
        "WHIP": 0.8333,
        "ER_per_IP": 0.16667,
        "H_per_IP": 0.66667,
        "BB_per_IP": 0.16667,
        "SO_per_IP": 1.66667,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 11.0,
        "ER": 2.0,
        "R": 3.0,
        "H": 9.0,
        "BB": 1.0,
        "SO": 18.0,
        "HR": 0.0,
        "BF": 42.0,
        "Pitches": 169.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.3,
        "H": 0.9,
        "BB": 0.1,
        "SO": 1.8,
        "HR": 0.0,
        "BF": 4.2,
        "Pitches": 16.9
      },
      "rates": {
        "ERA": 1.6364,
        "WHIP": 0.9091,
        "ER_per_IP": 0.18182,
        "H_per_IP": 0.81818,
        "BB_per_IP": 0.09091,
        "SO_per_IP": 1.63636,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 31,
      "totals": {
        "IP": 32.2,
        "ER": 9.0,
        "R": 11.0,
        "H": 28.0,
        "BB": 6.0,
        "SO": 49.0,
        "HR": 1.0,
        "BF": 129.0,
        "Pitches": 557.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2903,
        "R": 0.3548,
        "H": 0.9032,
        "BB": 0.1935,
        "SO": 1.5806,
        "HR": 0.0323,
        "BF": 4.1613,
        "Pitches": 17.9677
      },
      "rates": {
        "ERA": 2.4796,
        "WHIP": 1.0408,
        "ER_per_IP": 0.27551,
        "H_per_IP": 0.85714,
        "BB_per_IP": 0.18367,
        "SO_per_IP": 1.5,
        "HR_per_IP": 0.03061
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.355,
    "predicted_H": 0.924,
    "predicted_BB": 0.259,
    "predicted_SO": 1.437,
    "predicted_HR": 0.073,
    "predicted_ERA": 2.9471,
    "predicted_WHIP": 1.0911
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5339,
  "form_weight": 0.4661,
  "form_reliability": 0.5647,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.487,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5647,
    "prior_weight": 0.4353
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.355,
      "final": 0.1655,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.924,
      "final": 0.4307,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 0.259,
      "final": 0.6546,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 1.437,
      "final": 0.6698,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.073,
      "final": 0.034,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 2.9471,
      "final": 2.9471,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.0911,
      "final": 1.0911,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherHunter Gaddis
RoleMiddle Reliever
Projection Source-
Savant Quality Score-0.0487
ESPN Rank296
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP0.1000
Pre ER0
Pre H1
Pre BB0
Pre SO1
Season ERA3.6610
Season WHIP1.2712
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "CLE",
    "games": 82,
    "wins": 43,
    "losses": 39,
    "win_pct": 0.5244,
    "runs_scored": 340.0,
    "runs_allowed": 345.0,
    "run_differential": -5.0,
    "run_differential_per_game": -0.061,
    "avg_runs_scored": 4.1463,
    "avg_runs_allowed": 4.2073,
    "offense_index": 0.9195,
    "defense_index": 1.0718,
    "current_streak": "L3",
    "recent": {
      "games": 10,
      "wins": 3,
      "losses": 7,
      "win_pct": 0.3,
      "avg_runs_scored": 2.8,
      "avg_runs_allowed": 4.2,
      "run_differential": -14.0
    },
    "available": true,
    "quality_score": -0.0567
  },
  "opponent": {
    "team": "MIL",
    "games": 81,
    "wins": 49,
    "losses": 32,
    "win_pct": 0.6049,
    "runs_scored": 424.0,
    "runs_allowed": 301.0,
    "run_differential": 123.0,
    "run_differential_per_game": 1.5185,
    "avg_runs_scored": 5.2346,
    "avg_runs_allowed": 3.716,
    "offense_index": 1.1608,
    "defense_index": 1.2135,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 7,
      "losses": 3,
      "win_pct": 0.7,
      "avg_runs_scored": 7.1,
      "avg_runs_allowed": 4.4,
      "run_differential": 27.0
    },
    "available": true,
    "quality_score": 0.3444
  },
  "edges": {
    "quality_edge": -0.4011,
    "offense_edge": -0.0805,
    "opponent_offense_edge": 0.1608,
    "defense_strength": 0.0718,
    "opponent_defense_weakness": -0.2135,
    "recent_win_pct_edge": -0.4
  },
  "player_factors": {
    "ip": 0.9797,
    "run_prevention": 1.0386,
    "strikeout": 0.9751
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "683769",
    "profile": {
      "available": true,
      "pitcher_id": "683769",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 61.0,
        "k_percent": 15.7,
        "bb_percent": 7.9,
        "woba": 0.324,
        "xwoba": 0.331,
        "sweet_spot_percent": 29.4,
        "barrel_batted_rate": 7.5,
        "hard_hit_percent": 29.9,
        "avg_best_speed": 76.6863,
        "avg_hyper_speed": 92.575,
        "whiff_percent": 27.4,
        "swing_percent": 48.7
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.0241,
        "command_and_miss": -0.2871,
        "regression_edge": -0.2,
        "xwoba_edge": -0.4571,
        "barrel_edge": -0.0444,
        "hard_hit_edge": 1.2,
        "whiff_edge": 0.2429,
        "bb_edge": 0.325,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "683769",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": -0.0487,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0041,
      "strikeout_factor": 0.9869,
      "walk_factor": 0.9883,
      "homer_factor": 0.9862,
      "woba_minus_xwoba": -0.007,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "683769",
        "espn_id": 4187661,
        "player_name": "Hunter Gaddis",
        "team": "CLE",
        "role": "pitcher",
        "espn_rank": 296,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 296,
          "gp_value": 23.0,
          "gp_rank": 147,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 4.1186,
          "era_rank": null,
          "w_value": 1.0,
          "w_rank": 287,
          "l_value": 2.0,
          "l_rank": 185,
          "sv_value": 1.0,
          "sv_rank": 86,
          "hld_value": 11.0,
          "hld_rank": 12,
          "ip_value": 19.2,
          "ip_rank": 386,
          "h_value": 22.0,
          "h_rank": 299,
          "er_value": 9.0,
          "er_rank": 360,
          "hr_value": 3.0,
          "hr_rank": 258,
          "bb_value": 7.0,
          "bb_rank": 394,
          "k_value": 14.0,
          "k_rank": 423,
          "k_per_9_value": 6.40678,
          "k_per_9_rank": 29,
          "whip_value": 1.4745,
          "whip_rank": null,
          "war_value": 0.14,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 1.0018,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 1.0018,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9947,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9938,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 0.9941,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.1,
    "ER": 2,
    "H": 8,
    "BB": 2,
    "SO": 6,
    "HR": 1,
    "ERA": 1.9285714285714288,
    "WHIP": 1.0714285714285716,
    "K9": 5.7857142857142865,
    "HR9": 0.9642857142857144,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "683769",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 3.905,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4385,
    "prior_weight": 0.5615
  },
  "role": "pitcher",
  "player_id": "683769",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 22,
  "reference_playing_time": 0.1,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.1,
        "ER": 2.0,
        "R": 2.0,
        "H": 4.0,
        "BB": 1.0,
        "SO": 0.0,
        "HR": 1.0,
        "BF": 18.0,
        "Pitches": 81.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4,
        "R": 0.4,
        "H": 0.8,
        "BB": 0.2,
        "SO": 0.0,
        "HR": 0.2,
        "BF": 3.6,
        "Pitches": 16.2
      },
      "rates": {
        "ERA": 4.1538,
        "WHIP": 1.1538,
        "ER_per_IP": 0.46154,
        "H_per_IP": 0.92308,
        "BB_per_IP": 0.23077,
        "SO_per_IP": 0.0,
        "HR_per_IP": 0.23077
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.1,
        "ER": 2.0,
        "R": 2.0,
        "H": 8.0,
        "BB": 2.0,
        "SO": 6.0,
        "HR": 1.0,
        "BF": 39.0,
        "Pitches": 160.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.8,
        "BB": 0.2,
        "SO": 0.6,
        "HR": 0.1,
        "BF": 3.9,
        "Pitches": 16.0
      },
      "rates": {
        "ERA": 1.9286,
        "WHIP": 1.0714,
        "ER_per_IP": 0.21429,
        "H_per_IP": 0.85714,
        "BB_per_IP": 0.21429,
        "SO_per_IP": 0.64286,
        "HR_per_IP": 0.10714
      }
    },
    "season": {
      "games": 22,
      "totals": {
        "IP": 19.2,
        "ER": 8.0,
        "R": 8.0,
        "H": 20.0,
        "BB": 5.0,
        "SO": 14.0,
        "HR": 3.0,
        "BF": 85.0,
        "Pitches": 329.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3636,
        "R": 0.3636,
        "H": 0.9091,
        "BB": 0.2273,
        "SO": 0.6364,
        "HR": 0.1364,
        "BF": 3.8636,
        "Pitches": 14.9545
      },
      "rates": {
        "ERA": 3.661,
        "WHIP": 1.2712,
        "ER_per_IP": 0.40678,
        "H_per_IP": 1.01695,
        "BB_per_IP": 0.25424,
        "SO_per_IP": 0.71186,
        "HR_per_IP": 0.15254
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 0.2,
    "predicted_ER": 0.276,
    "predicted_H": 0.594,
    "predicted_BB": 0.191,
    "predicted_SO": 0.43,
    "predicted_HR": 0.098,
    "predicted_ERA": 3.9681,
    "predicted_WHIP": 1.2544
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5872,
  "form_weight": 0.4128,
  "form_reliability": 0.4385,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 3.905,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4385,
    "prior_weight": 0.5615
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 0.1,
      "form": 0.2,
      "final": 0.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.276,
      "final": 0.1139,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.594,
      "final": 0.8324,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.191,
      "final": 0.0788,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 0.43,
      "final": 0.7647,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.098,
      "final": 0.0405,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.9681,
      "final": 3.9681,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2544,
      "final": 1.2544,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Brayan Rocchio (677587) · BATTER · SS · Team CLE
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 219
All-history rows before 20260618: 219
System season_avg: 0.2660
Data season_avg (2026 season-to-date): 0.2906
Diff (system - data): -0.0246
System opponent_avg: 0.0000
System season_avg diverges from 2026 season-to-date by -0.0246. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1291.0000.000Hitting_2B0.1420.0000.8581.000
predicted_3B0.0290.0000.000Hitting_3B0.0230.000-0.0230.000
predicted_AB3.5704.0004.000Hitting_AB3.3473.0000.6531.000
predicted_AVG0.2290.2500.250Hitting_AVG0.2910.000-0.0410.250
predicted_BB0.3000.0000.000Hitting_BB0.3291.000-0.329-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0550.000-0.0550.000
predicted_H0.8201.0001.000Hitting_H0.9730.0000.0271.000
predicted_HR0.0900.0000.000Hitting_HR0.0680.000-0.0680.000
predicted_OBP0.2890.2500.250Hitting_OBP0.3680.250-0.1180.000
predicted_R0.4140.0000.000Hitting_R0.4521.000-0.452-1.000
predicted_RBI0.4700.0000.000Hitting_RBI0.4980.000-0.4980.000
predicted_SLG0.3570.5000.250Hitting_SLG0.4080.0000.0920.500
predicted_SO0.5140.0001.000Hitting_SO0.4472.000-0.447-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics4
Worse Metrics7
Biggest Boostpredicted_2B: 0.1290 -> 1.0000 (boost 0.8710, better)
Biggest Deboostpredicted_SO: 0.5140 -> 0.0000 (deboost -0.5140, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend51405predicted_SO: 0.5140 -> 0.6026 (boost 0.0886, worse)predicted_AB: 3.5700 -> 3.4672 (deboost -0.1028, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.2848 -> 0.2697 (deboost -0.0151, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling83526predicted_AB: 3.4672 -> 4.0000 (boost 0.5328, better)predicted_RBI: 0.4167 -> 0.0000 (deboost -0.4167, worse)AB rounded to 4 (raw=3.57), rates preserved: AVG=0.203 HR/AB=0.022
5consistency_constraints10101-predicted_R: 0.3501 -> 0.0000 (deboost -0.3501, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2090 -> 0.2500 (boost 0.0410, better)predicted_SLG: 0.3349 -> 0.2500 (deboost -0.0849, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21120predicted_2B: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.2500 -> 0.3349 (boost 0.0849, better)predicted_AVG: 0.2500 -> 0.2090 (deboost -0.0410, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "677587",
  "player_name": "Brayan Rocchio",
  "position": "SS",
  "team": "CLE",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.129,
        "predicted_3B": 0.029,
        "predicted_AB": 3.57,
        "predicted_AVG": 0.229,
        "predicted_BB": 0.3,
        "predicted_H": 0.82,
        "predicted_HR": 0.09,
        "predicted_OBP": 0.289,
        "predicted_R": 0.414,
        "predicted_RBI": 0.47,
        "predicted_SLG": 0.357,
        "predicted_SO": 0.514
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1114,
        "predicted_3B": 0.047,
        "predicted_AB": 3.4672,
        "predicted_AVG": 0.22,
        "predicted_BB": 0.2924,
        "predicted_H": 0.7654,
        "predicted_HBP": 0.076,
        "predicted_HR": 0.0812,
        "predicted_OBP": 0.2848,
        "predicted_R": 0.385,
        "predicted_RBI": 0.4582,
        "predicted_SLG": 0.3496,
        "predicted_SO": 0.6026
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.129,
          "after": 0.1114,
          "delta": -0.0176,
          "percent_delta": -0.1364,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.029,
          "after": 0.047,
          "delta": 0.018,
          "percent_delta": 0.6207,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.57,
          "after": 3.4672,
          "delta": -0.1028,
          "percent_delta": -0.0288,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.229,
          "after": 0.22,
          "delta": -0.009,
          "percent_delta": -0.0393,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3,
          "after": 0.2924,
          "delta": -0.0076,
          "percent_delta": -0.0253,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.82,
          "after": 0.7654,
          "delta": -0.0546,
          "percent_delta": -0.0666,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.09,
          "after": 0.0812,
          "delta": -0.0088,
          "percent_delta": -0.0978,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.289,
          "after": 0.2848,
          "delta": -0.0042,
          "percent_delta": -0.0145,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.414,
          "after": 0.385,
          "delta": -0.029,
          "percent_delta": -0.07,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.47,
          "after": 0.4582,
          "delta": -0.0118,
          "percent_delta": -0.0251,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.357,
          "after": 0.3496,
          "delta": -0.0074,
          "percent_delta": -0.0207,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.514,
          "after": 0.6026,
          "delta": 0.0886,
          "percent_delta": 0.1724,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 1,
        "deboosted_metrics": 4,
        "better_metrics": 0,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.514,
          "after": 0.6026,
          "delta": 0.0886,
          "percent_delta": 0.1724,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.57,
          "after": 3.4672,
          "delta": -0.1028,
          "percent_delta": -0.0288,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 70
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1114,
        "predicted_3B": 0.047,
        "predicted_AB": 3.4672,
        "predicted_AVG": 0.209,
        "predicted_BB": 0.2879,
        "predicted_H": 0.7247,
        "predicted_HBP": 0.076,
        "predicted_HR": 0.0771,
        "predicted_OBP": 0.2697,
        "predicted_R": 0.3501,
        "predicted_RBI": 0.4167,
        "predicted_SLG": 0.3349,
        "predicted_SO": 0.6118
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1114,
          "after": 0.1114,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.047,
          "after": 0.047,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4672,
          "after": 3.4672,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.22,
          "after": 0.209,
          "delta": -0.011,
          "percent_delta": -0.05,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2924,
          "after": 0.2879,
          "delta": -0.0045,
          "percent_delta": -0.0154,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7654,
          "after": 0.7247,
          "delta": -0.0407,
          "percent_delta": -0.0532,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.076,
          "after": 0.076,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0812,
          "after": 0.0771,
          "delta": -0.0041,
          "percent_delta": -0.0505,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2848,
          "after": 0.2697,
          "delta": -0.0151,
          "percent_delta": -0.053,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.385,
          "after": 0.3501,
          "delta": -0.0349,
          "percent_delta": -0.0906,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4582,
          "after": 0.4167,
          "delta": -0.0415,
          "percent_delta": -0.0906,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3496,
          "after": 0.3349,
          "delta": -0.0147,
          "percent_delta": -0.042,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6026,
          "after": 0.6118,
          "delta": 0.0092,
          "percent_delta": 0.0153,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.2848,
          "after": 0.2697,
          "delta": -0.0151,
          "percent_delta": -0.053,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.57), rates preserved: AVG=0.203 HR/AB=0.022",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1114,
          "after": 0.0,
          "delta": -0.1114,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.047,
          "after": 0.0,
          "delta": -0.047,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4672,
          "after": 4.0,
          "delta": 0.5328,
          "percent_delta": 0.1537,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2879,
          "after": 0.0,
          "delta": -0.2879,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7247,
          "after": 1.0,
          "delta": 0.2753,
          "percent_delta": 0.3799,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.076,
          "after": 0.0,
          "delta": -0.076,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0771,
          "after": 0.0,
          "delta": -0.0771,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4167,
          "after": 0.0,
          "delta": -0.4167,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6118,
          "after": 1.0,
          "delta": 0.3882,
          "percent_delta": 0.6345,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 3,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.4672,
          "after": 4.0,
          "delta": 0.5328,
          "percent_delta": 0.1537,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4167,
          "after": 0.0,
          "delta": -0.4167,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3501,
          "after": 0.0,
          "delta": -0.3501,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3501,
          "after": 0.0,
          "delta": -0.3501,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.209,
          "after": 0.25,
          "delta": 0.041,
          "percent_delta": 0.1962,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2697,
          "after": 0.25,
          "delta": -0.0197,
          "percent_delta": -0.073,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3349,
          "after": 0.25,
          "delta": -0.0849,
          "percent_delta": -0.2535,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.209,
          "after": 0.25,
          "delta": 0.041,
          "percent_delta": 0.1962,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3349,
          "after": 0.25,
          "delta": -0.0849,
          "percent_delta": -0.2535,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.209,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2697,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3349,
        "predicted_SO": 0.0,
        "predicted_SS": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.209,
          "delta": -0.041,
          "percent_delta": -0.164,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2697,
          "delta": 0.0197,
          "percent_delta": 0.0786,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3349,
          "delta": 0.0849,
          "percent_delta": 0.3397,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3349,
          "delta": 0.0849,
          "percent_delta": 0.3397,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.209,
          "delta": -0.041,
          "percent_delta": -0.164,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.129,
        "after": 1.0,
        "delta": 0.871,
        "percent_delta": 6.7519,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.029,
        "after": 0.0,
        "delta": -0.029,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.57,
        "after": 4.0,
        "delta": 0.43,
        "percent_delta": 0.1204,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.229,
        "after": 0.209,
        "delta": -0.02,
        "percent_delta": -0.0873,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.3,
        "after": 0.0,
        "delta": -0.3,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.82,
        "after": 1.0,
        "delta": 0.18,
        "percent_delta": 0.2195,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.09,
        "after": 0.0,
        "delta": -0.09,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.289,
        "after": 0.2697,
        "delta": -0.0193,
        "percent_delta": -0.0668,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.414,
        "after": 0.0,
        "delta": -0.414,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.47,
        "after": 0.0,
        "delta": -0.47,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.357,
        "after": 0.3349,
        "delta": -0.0221,
        "percent_delta": -0.0619,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.514,
        "after": 0.0,
        "delta": -0.514,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 4,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_2B",
        "before": 0.129,
        "after": 1.0,
        "delta": 0.871,
        "percent_delta": 6.7519,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.514,
        "after": 0.0,
        "delta": -0.514,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.129-
predicted_3B0.029-
predicted_AB3.570-
predicted_AVG0.229-
predicted_BB0.300-
predicted_H0.820-
predicted_HR0.090-
predicted_OBP0.289-
predicted_R0.414-
predicted_RBI0.470-
predicted_SLG0.357-
predicted_SO0.514-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.111-0.018
predicted_3B0.0470.018
predicted_AB3.467-0.103
predicted_AVG0.220-0.009
predicted_BB0.292-0.008
predicted_H0.765-0.055
predicted_HBP0.076-
predicted_HR0.081-0.009
predicted_OBP0.285-0.004
predicted_R0.385-0.029
predicted_RBI0.458-0.012
predicted_SLG0.350-0.007
predicted_SO0.6030.089
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1110.000
predicted_3B0.0470.000
predicted_AB3.4670.000
predicted_AVG0.209-0.011
predicted_BB0.288-0.005
predicted_H0.725-0.041
predicted_HBP0.0760.000
predicted_HR0.077-0.004
predicted_OBP0.270-0.015
predicted_R0.350-0.035
predicted_RBI0.417-0.041
predicted_SLG0.335-0.015
predicted_SO0.6120.009
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.57), rates preserved: AVG=0.203 HR/AB=0.022

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.111
predicted_3B0.000-0.047
predicted_AB4.0000.533
predicted_AVG0.2500.041
predicted_BB0.000-0.288
predicted_H1.0000.275
predicted_HR0.000-0.077
predicted_OBP0.250-0.020
predicted_R0.000-0.350
predicted_RBI0.000-0.417
predicted_SLG0.250-0.085
predicted_SO1.0000.388
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 70
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-16.0001.0000.0001.0000.0002.0001.0001.0006.0000.06250.11110.18750.06250.00000.12500.06250.3750
last_100.2010-33.0005.0000.0001.0001.0004.0002.0003.0008.0000.15150.23680.30300.15150.03030.12120.09090.2424
season0.6070-229.00061.0009.0002.0005.00032.00029.00021.00036.0000.26640.34230.38860.26640.02180.13970.09170.1572
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0870
predicted_3B0.0720
predicted_AB3.3250
predicted_AVG0.2076
predicted_BB0.2820
predicted_H0.6900
predicted_HBP0.0760
predicted_HR0.0690
predicted_OBP0.2789
predicted_R0.3450
predicted_RBI0.4420
predicted_SLG0.3394
predicted_SO0.7250
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.12900.08700.1114model_form_blend
predicted_3B0.02900.07200.0470model_form_blend
predicted_AB3.57003.32503.4672model_form_blend
predicted_AVG0.22900.20760.2200model_form_blend
predicted_BB0.30000.28200.2924model_form_blend
predicted_H0.82000.69000.7654model_form_blend
predicted_HBP-0.07600.0760form_only
predicted_HR0.09000.06900.0812model_form_blend
predicted_OBP0.28900.27890.2848model_form_blend
predicted_R0.41400.34500.3850model_form_blend
predicted_RBI0.47000.44200.4582model_form_blend
predicted_SLG0.35700.33940.3496model_form_blend
predicted_SO0.51400.72500.6026model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date219
Season rows before report date219
Report year2026
Profile rows used70
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B1
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.266

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.0
Hitting_BB1
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB0
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedSS
gameID20260617_CLE@MIL
game_typefull
mlbID677587
playerID677587
playerNameBrayan Rocchio
posSS
startedTrue
startingPositionSS
teamCLE
teamID8
game_date2026-06-17
sl_k_percent13.6
sl_bb_percent8.7
sl_woba0.328
sl_xwoba0.311
sl_xba0.25
sl_xslg0.356
sl_sweet_spot_percent31.7
sl_barrel_batted_rate3.1
sl_hard_hit_percent32.5
sl_exit_velocity_avg86.7
sl_launch_angle_avg12.1
sl_whiff_percent23.5
sl_swing_percent48.5
Rhys Hoskins (656555) · BATTER · 1B · Team CLE
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 167
All-history rows before 20260618: 167
System season_avg: 0.1820
Data season_avg (2026 season-to-date): 0.1988
Diff (system - data): -0.0168
System opponent_avg: 0.1250
System season_avg diverges from 2026 season-to-date by -0.0168. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2220.0000.000Hitting_2B0.2400.000-0.2400.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.0563.0003.000Hitting_AB3.0724.000-0.072-1.000
predicted_AVG0.2190.0000.333Hitting_AVG0.1990.000-0.1990.000
predicted_BB0.5741.0000.000Hitting_BB0.6710.0000.3291.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.6600.0001.000Hitting_H0.6110.000-0.6110.000
predicted_HR0.1100.0000.000Hitting_HR0.1380.000-0.1380.000
predicted_OBP0.2800.2500.333Hitting_OBP0.3400.000-0.0900.250
predicted_R0.4440.0000.000Hitting_R0.5210.000-0.5210.000
predicted_RBI0.3600.0000.000Hitting_RBI0.5150.000-0.5150.000
predicted_SLG0.3450.0000.333Hitting_SLG0.4110.000-0.4110.000
predicted_SO1.1301.0001.000Hitting_SO1.0843.000-0.084-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics4
Worse Metrics7
Biggest Boostpredicted_BB: 0.5740 -> 1.0000 (boost 0.4260, better)
Biggest Deboostpredicted_H: 0.6600 -> 0.0000 (deboost -0.6600, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend51414predicted_AB: 3.0560 -> 3.1986 (boost 0.1426, better)predicted_BB: 0.5740 -> 0.5167 (deboost -0.0573, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot32121predicted_OBP: 0.2739 -> 0.2971 (boost 0.0232, better)predicted_AVG: 0.1987 -> 0.1852 (deboost -0.0135, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71625predicted_H: 0.5925 -> 1.0000 (boost 0.4075, better)predicted_BB: 0.5088 -> 0.0000 (deboost -0.5088, worse)AB rounded to 3 (raw=3.20), rates preserved: AVG=0.185 HR/AB=0.031
5consistency_constraints10101-predicted_R: 0.3794 -> 0.0000 (deboost -0.3794, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.1852 -> 0.3330 (boost 0.1478, better)predicted_SLG: 0.3511 -> 0.3330 (deboost -0.0181, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21111predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.3511 (boost 0.0181, better)predicted_AVG: 0.3330 -> 0.1852 (deboost -0.1478, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "656555",
  "player_name": "Rhys Hoskins",
  "position": "1B",
  "team": "CLE",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.222,
        "predicted_3B": 0.0,
        "predicted_AB": 3.056,
        "predicted_AVG": 0.219,
        "predicted_BB": 0.574,
        "predicted_H": 0.66,
        "predicted_HR": 0.11,
        "predicted_OBP": 0.28,
        "predicted_R": 0.444,
        "predicted_RBI": 0.36,
        "predicted_SLG": 0.345,
        "predicted_SO": 1.13
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2311,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.1986,
        "predicted_AVG": 0.1987,
        "predicted_BB": 0.5167,
        "predicted_H": 0.6258,
        "predicted_HBP": 0.042,
        "predicted_HR": 0.1046,
        "predicted_OBP": 0.2739,
        "predicted_R": 0.4172,
        "predicted_RBI": 0.3584,
        "predicted_SLG": 0.3378,
        "predicted_SO": 1.1704
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.222,
          "after": 0.2311,
          "delta": 0.0091,
          "percent_delta": 0.041,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.056,
          "after": 3.1986,
          "delta": 0.1426,
          "percent_delta": 0.0467,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.219,
          "after": 0.1987,
          "delta": -0.0203,
          "percent_delta": -0.0927,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.574,
          "after": 0.5167,
          "delta": -0.0573,
          "percent_delta": -0.0998,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.66,
          "after": 0.6258,
          "delta": -0.0342,
          "percent_delta": -0.0518,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.11,
          "after": 0.1046,
          "delta": -0.0054,
          "percent_delta": -0.0491,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.28,
          "after": 0.2739,
          "delta": -0.0061,
          "percent_delta": -0.0218,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.444,
          "after": 0.4172,
          "delta": -0.0268,
          "percent_delta": -0.0604,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.36,
          "after": 0.3584,
          "delta": -0.0016,
          "percent_delta": -0.0044,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.345,
          "after": 0.3378,
          "delta": -0.0072,
          "percent_delta": -0.0209,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.13,
          "after": 1.1704,
          "delta": 0.0404,
          "percent_delta": 0.0358,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 1,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.056,
          "after": 3.1986,
          "delta": 0.1426,
          "percent_delta": 0.0467,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.574,
          "after": 0.5167,
          "delta": -0.0573,
          "percent_delta": -0.0998,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 54
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2311,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.1986,
        "predicted_AVG": 0.1852,
        "predicted_BB": 0.5088,
        "predicted_H": 0.5925,
        "predicted_HBP": 0.042,
        "predicted_HR": 0.0993,
        "predicted_OBP": 0.2971,
        "predicted_R": 0.3794,
        "predicted_RBI": 0.3259,
        "predicted_SLG": 0.3511,
        "predicted_SO": 1.1883
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2311,
          "after": 0.2311,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.1986,
          "after": 3.1986,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1987,
          "after": 0.1852,
          "delta": -0.0135,
          "percent_delta": -0.0679,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.5167,
          "after": 0.5088,
          "delta": -0.0079,
          "percent_delta": -0.0153,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6258,
          "after": 0.5925,
          "delta": -0.0333,
          "percent_delta": -0.0532,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.042,
          "after": 0.042,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1046,
          "after": 0.0993,
          "delta": -0.0053,
          "percent_delta": -0.0507,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2739,
          "after": 0.2971,
          "delta": 0.0232,
          "percent_delta": 0.0847,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4172,
          "after": 0.3794,
          "delta": -0.0378,
          "percent_delta": -0.0906,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3584,
          "after": 0.3259,
          "delta": -0.0325,
          "percent_delta": -0.0907,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3378,
          "after": 0.3511,
          "delta": 0.0133,
          "percent_delta": 0.0394,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1704,
          "after": 1.1883,
          "delta": 0.0179,
          "percent_delta": 0.0153,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.2739,
          "after": 0.2971,
          "delta": 0.0232,
          "percent_delta": 0.0847,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.1987,
          "after": 0.1852,
          "delta": -0.0135,
          "percent_delta": -0.0679,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.20), rates preserved: AVG=0.185 HR/AB=0.031",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2311,
          "after": 0.0,
          "delta": -0.2311,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.1986,
          "after": 3.0,
          "delta": -0.1986,
          "percent_delta": -0.0621,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.5088,
          "after": 0.0,
          "delta": -0.5088,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.5925,
          "after": 1.0,
          "delta": 0.4075,
          "percent_delta": 0.6878,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.042,
          "after": 0.0,
          "delta": -0.042,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0993,
          "after": 0.0,
          "delta": -0.0993,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3259,
          "after": 0.0,
          "delta": -0.3259,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1883,
          "after": 1.0,
          "delta": -0.1883,
          "percent_delta": -0.1585,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.5925,
          "after": 1.0,
          "delta": 0.4075,
          "percent_delta": 0.6878,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.5088,
          "after": 0.0,
          "delta": -0.5088,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3794,
          "after": 0.0,
          "delta": -0.3794,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3794,
          "after": 0.0,
          "delta": -0.3794,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1852,
          "after": 0.333,
          "delta": 0.1478,
          "percent_delta": 0.7981,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2971,
          "after": 0.333,
          "delta": 0.0359,
          "percent_delta": 0.1208,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3511,
          "after": 0.333,
          "delta": -0.0181,
          "percent_delta": -0.0516,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1852,
          "after": 0.333,
          "delta": 0.1478,
          "percent_delta": 0.7981,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3511,
          "after": 0.333,
          "delta": -0.0181,
          "percent_delta": -0.0516,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.1852,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_FB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2971,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3511,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1852,
          "delta": -0.1478,
          "percent_delta": -0.4437,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2971,
          "delta": -0.0359,
          "percent_delta": -0.1079,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3511,
          "delta": 0.0181,
          "percent_delta": 0.0543,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3511,
          "delta": 0.0181,
          "percent_delta": 0.0543,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1852,
          "delta": -0.1478,
          "percent_delta": -0.4437,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.222,
        "after": 0.0,
        "delta": -0.222,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.056,
        "after": 3.0,
        "delta": -0.056,
        "percent_delta": -0.0183,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.219,
        "after": 0.1852,
        "delta": -0.0338,
        "percent_delta": -0.1543,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.574,
        "after": 1.0,
        "delta": 0.426,
        "percent_delta": 0.7422,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.66,
        "after": 0.0,
        "delta": -0.66,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.11,
        "after": 0.0,
        "delta": -0.11,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.28,
        "after": 0.2971,
        "delta": 0.0171,
        "percent_delta": 0.0611,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.444,
        "after": 0.0,
        "delta": -0.444,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.36,
        "after": 0.0,
        "delta": -0.36,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.345,
        "after": 0.3511,
        "delta": 0.0061,
        "percent_delta": 0.0177,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.13,
        "after": 1.0,
        "delta": -0.13,
        "percent_delta": -0.115,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 4,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.574,
        "after": 1.0,
        "delta": 0.426,
        "percent_delta": 0.7422,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.66,
        "after": 0.0,
        "delta": -0.66,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.222-
predicted_3B0.000-
predicted_AB3.056-
predicted_AVG0.219-
predicted_BB0.574-
predicted_H0.660-
predicted_HR0.110-
predicted_OBP0.280-
predicted_R0.444-
predicted_RBI0.360-
predicted_SLG0.345-
predicted_SO1.130-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2310.009
predicted_3B0.0010.001
predicted_AB3.1990.143
predicted_AVG0.199-0.020
predicted_BB0.517-0.057
predicted_H0.626-0.034
predicted_HBP0.042-
predicted_HR0.105-0.005
predicted_OBP0.274-0.006
predicted_R0.417-0.027
predicted_RBI0.358-0.002
predicted_SLG0.338-0.007
predicted_SO1.1700.040
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2310.000
predicted_3B0.0010.000
predicted_AB3.1990.000
predicted_AVG0.185-0.013
predicted_BB0.509-0.008
predicted_H0.593-0.033
predicted_HBP0.0420.000
predicted_HR0.099-0.005
predicted_OBP0.2970.023
predicted_R0.379-0.038
predicted_RBI0.326-0.032
predicted_SLG0.3510.013
predicted_SO1.1880.018
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.20), rates preserved: AVG=0.185 HR/AB=0.031

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.231
predicted_3B0.000-0.001
predicted_AB3.000-0.199
predicted_AVG0.3330.148
predicted_BB0.000-0.509
predicted_H1.0000.407
predicted_HR0.000-0.099
predicted_OBP0.3330.036
predicted_R0.000-0.379
predicted_RBI0.000-0.326
predicted_SLG0.333-0.018
predicted_SO1.000-0.188
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 54
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.0002.0002.0000.0000.0000.0001.0000.0008.0000.10000.10000.20000.10000.00000.00000.00000.4000
last_100.2010-35.0005.0002.0000.0001.0003.0002.0004.00014.0000.14290.25000.28570.14290.02860.08570.11430.4000
season0.6054-165.00030.00012.0000.0006.00023.00024.00031.00061.0000.18180.31340.36360.18180.03640.13940.18790.3697
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2440
predicted_3B0.0020
predicted_AB3.4020
predicted_AVG0.1697
predicted_BB0.4350
predicted_H0.5770
predicted_HBP0.0420
predicted_HR0.0970
predicted_OBP0.2652
predicted_R0.3790
predicted_RBI0.3560
predicted_SLG0.3276
predicted_SO1.2280
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.22200.24400.2311model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB3.05603.40203.1986model_form_blend
predicted_AVG0.21900.16970.1987model_form_blend
predicted_BB0.57400.43500.5167model_form_blend
predicted_H0.66000.57700.6258model_form_blend
predicted_HBP-0.04200.0420form_only
predicted_HR0.11000.09700.1046model_form_blend
predicted_OBP0.28000.26520.2739model_form_blend
predicted_R0.44400.37900.4172model_form_blend
predicted_RBI0.36000.35600.3584model_form_blend
predicted_SLG0.34500.32760.3378model_form_blend
predicted_SO1.13001.22801.1704model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date167
Season rows before report date167
Report year2026
Profile rows used54
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO1
SF0
HBP0
season_avg0.182

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO3
Hitting_TB0
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260617_CLE@MIL
game_typefull
mlbID656555
playerID656555
playerNameRhys Hoskins
pos1B
startedTrue
startingPositionDH
teamCLE
teamID8
game_date2026-06-17
sl_k_percent29.8
sl_bb_percent16.6
sl_woba0.31
sl_xwoba0.295
sl_xba0.175
sl_xslg0.312
sl_sweet_spot_percent34.3
sl_barrel_batted_rate11.1
sl_hard_hit_percent41.7
sl_exit_velocity_avg88.6
sl_launch_angle_avg24.1
sl_whiff_percent30.3
sl_swing_percent40.8
David Fry (681807) · BATTER · LF · Team CLE
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 99
All-history rows before 20260618: 99
System season_avg: 0.2270
Data season_avg (2026 season-to-date): 0.2527
Diff (system - data): -0.0257
System opponent_avg: 0.0000
System season_avg diverges from 2026 season-to-date by -0.0257. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1030.0000.000Hitting_2B0.1110.000-0.1110.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.5004.0003.000Hitting_AB2.7584.0001.2420.000
predicted_AVG0.2500.0000.333Hitting_AVG0.2530.000-0.2530.000
predicted_BB0.3610.0000.000Hitting_BB0.4140.000-0.4140.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.6100.0001.000Hitting_H0.6970.000-0.6970.000
predicted_HR0.0800.0000.000Hitting_HR0.1010.000-0.1010.000
predicted_OBP0.2980.0000.333Hitting_OBP0.3500.000-0.3500.000
predicted_R0.3090.0000.000Hitting_R0.4140.000-0.4140.000
predicted_RBI0.2600.0000.000Hitting_RBI0.2830.000-0.2830.000
predicted_SLG0.3390.0000.333Hitting_SLG0.4030.000-0.4030.000
predicted_SO0.9021.0001.000Hitting_SO1.0100.000-0.0101.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics3
Deboosted Metrics7
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_AB: 2.5000 -> 4.0000 (boost 1.5000, better)
Biggest Deboostpredicted_H: 0.6100 -> 0.0000 (deboost -0.6100, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend31212predicted_AB: 2.5000 -> 2.5989 (boost 0.0989, better)predicted_AVG: 0.2500 -> 0.2301 (deboost -0.0199, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot32121predicted_OBP: 0.2958 -> 0.3075 (boost 0.0117, better)predicted_AVG: 0.2301 -> 0.2135 (deboost -0.0166, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73425predicted_H: 0.5548 -> 1.0000 (boost 0.4452, better)predicted_BB: 0.3528 -> 0.0000 (deboost -0.3528, worse)AB rounded to 3 (raw=2.60), rates preserved: AVG=0.213 HR/AB=0.026
5consistency_constraints10101-predicted_R: 0.2620 -> 0.0000 (deboost -0.2620, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2135 -> 0.3330 (boost 0.1195, better)predicted_SLG: 0.3401 -> 0.3330 (deboost -0.0071, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21111predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.3401 (boost 0.0071, better)predicted_AVG: 0.3330 -> 0.2135 (deboost -0.1195, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "681807",
  "player_name": "David Fry",
  "position": "LF",
  "team": "CLE",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.103,
        "predicted_3B": 0.0,
        "predicted_AB": 2.5,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.361,
        "predicted_H": 0.61,
        "predicted_HR": 0.08,
        "predicted_OBP": 0.298,
        "predicted_R": 0.309,
        "predicted_RBI": 0.26,
        "predicted_SLG": 0.339,
        "predicted_SO": 0.902
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.122,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.5989,
        "predicted_AVG": 0.2301,
        "predicted_BB": 0.3583,
        "predicted_H": 0.586,
        "predicted_HBP": 0.005,
        "predicted_HR": 0.0722,
        "predicted_OBP": 0.2958,
        "predicted_R": 0.2881,
        "predicted_RBI": 0.2305,
        "predicted_SLG": 0.3321,
        "predicted_SO": 0.9132
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.103,
          "after": 0.122,
          "delta": 0.019,
          "percent_delta": 0.1845,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.5,
          "after": 2.5989,
          "delta": 0.0989,
          "percent_delta": 0.0396,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2301,
          "delta": -0.0199,
          "percent_delta": -0.0796,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.361,
          "after": 0.3583,
          "delta": -0.0027,
          "percent_delta": -0.0075,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.61,
          "after": 0.586,
          "delta": -0.024,
          "percent_delta": -0.0393,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.08,
          "after": 0.0722,
          "delta": -0.0078,
          "percent_delta": -0.0975,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.298,
          "after": 0.2958,
          "delta": -0.0022,
          "percent_delta": -0.0074,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.309,
          "after": 0.2881,
          "delta": -0.0209,
          "percent_delta": -0.0676,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.26,
          "after": 0.2305,
          "delta": -0.0295,
          "percent_delta": -0.1135,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.339,
          "after": 0.3321,
          "delta": -0.0069,
          "percent_delta": -0.0204,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.902,
          "after": 0.9132,
          "delta": 0.0112,
          "percent_delta": 0.0124,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.5,
          "after": 2.5989,
          "delta": 0.0989,
          "percent_delta": 0.0396,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2301,
          "delta": -0.0199,
          "percent_delta": -0.0796,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 40
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.122,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.5989,
        "predicted_AVG": 0.2135,
        "predicted_BB": 0.3528,
        "predicted_H": 0.5548,
        "predicted_HBP": 0.005,
        "predicted_HR": 0.0685,
        "predicted_OBP": 0.3075,
        "predicted_R": 0.262,
        "predicted_RBI": 0.2096,
        "predicted_SLG": 0.3401,
        "predicted_SO": 0.9272
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.122,
          "after": 0.122,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.5989,
          "after": 2.5989,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2301,
          "after": 0.2135,
          "delta": -0.0166,
          "percent_delta": -0.0721,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3583,
          "after": 0.3528,
          "delta": -0.0055,
          "percent_delta": -0.0154,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.586,
          "after": 0.5548,
          "delta": -0.0312,
          "percent_delta": -0.0532,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.005,
          "after": 0.005,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0722,
          "after": 0.0685,
          "delta": -0.0037,
          "percent_delta": -0.0512,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2958,
          "after": 0.3075,
          "delta": 0.0117,
          "percent_delta": 0.0396,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.2881,
          "after": 0.262,
          "delta": -0.0261,
          "percent_delta": -0.0906,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2305,
          "after": 0.2096,
          "delta": -0.0209,
          "percent_delta": -0.0907,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3321,
          "after": 0.3401,
          "delta": 0.008,
          "percent_delta": 0.0241,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9132,
          "after": 0.9272,
          "delta": 0.014,
          "percent_delta": 0.0153,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.2958,
          "after": 0.3075,
          "delta": 0.0117,
          "percent_delta": 0.0396,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2301,
          "after": 0.2135,
          "delta": -0.0166,
          "percent_delta": -0.0721,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.60), rates preserved: AVG=0.213 HR/AB=0.026",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.122,
          "after": 0.0,
          "delta": -0.122,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.5989,
          "after": 3.0,
          "delta": 0.4011,
          "percent_delta": 0.1543,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3528,
          "after": 0.0,
          "delta": -0.3528,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.5548,
          "after": 1.0,
          "delta": 0.4452,
          "percent_delta": 0.8025,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.005,
          "after": 0.0,
          "delta": -0.005,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0685,
          "after": 0.0,
          "delta": -0.0685,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2096,
          "after": 0.0,
          "delta": -0.2096,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9272,
          "after": 1.0,
          "delta": 0.0728,
          "percent_delta": 0.0785,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.5548,
          "after": 1.0,
          "delta": 0.4452,
          "percent_delta": 0.8025,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3528,
          "after": 0.0,
          "delta": -0.3528,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.262,
          "after": 0.0,
          "delta": -0.262,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.262,
          "after": 0.0,
          "delta": -0.262,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2135,
          "after": 0.333,
          "delta": 0.1195,
          "percent_delta": 0.5597,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3075,
          "after": 0.333,
          "delta": 0.0255,
          "percent_delta": 0.0829,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3401,
          "after": 0.333,
          "delta": -0.0071,
          "percent_delta": -0.0209,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2135,
          "after": 0.333,
          "delta": 0.1195,
          "percent_delta": 0.5597,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3401,
          "after": 0.333,
          "delta": -0.0071,
          "percent_delta": -0.0209,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2135,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_LF": 0.0,
        "predicted_OBP": 0.3075,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3401,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2135,
          "delta": -0.1195,
          "percent_delta": -0.3589,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3075,
          "delta": -0.0255,
          "percent_delta": -0.0766,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3401,
          "delta": 0.0071,
          "percent_delta": 0.0214,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3401,
          "delta": 0.0071,
          "percent_delta": 0.0214,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2135,
          "delta": -0.1195,
          "percent_delta": -0.3589,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.103,
        "after": 0.0,
        "delta": -0.103,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.5,
        "after": 4.0,
        "delta": 1.5,
        "percent_delta": 0.6,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.25,
        "after": 0.2135,
        "delta": -0.0365,
        "percent_delta": -0.146,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.361,
        "after": 0.0,
        "delta": -0.361,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.61,
        "after": 0.0,
        "delta": -0.61,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.08,
        "after": 0.0,
        "delta": -0.08,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.298,
        "after": 0.3075,
        "delta": 0.0095,
        "percent_delta": 0.0319,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.309,
        "after": 0.0,
        "delta": -0.309,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.26,
        "after": 0.0,
        "delta": -0.26,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.339,
        "after": 0.3401,
        "delta": 0.0011,
        "percent_delta": 0.0032,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.902,
        "after": 1.0,
        "delta": 0.098,
        "percent_delta": 0.1086,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 3,
      "deboosted_metrics": 7,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 2.5,
        "after": 4.0,
        "delta": 1.5,
        "percent_delta": 0.6,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.61,
        "after": 0.0,
        "delta": -0.61,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.103-
predicted_3B0.000-
predicted_AB2.500-
predicted_AVG0.250-
predicted_BB0.361-
predicted_H0.610-
predicted_HR0.080-
predicted_OBP0.298-
predicted_R0.309-
predicted_RBI0.260-
predicted_SLG0.339-
predicted_SO0.902-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1220.019
predicted_3B0.0010.001
predicted_AB2.5990.099
predicted_AVG0.230-0.020
predicted_BB0.358-0.003
predicted_H0.586-0.024
predicted_HBP0.005-
predicted_HR0.072-0.008
predicted_OBP0.296-0.002
predicted_R0.288-0.021
predicted_RBI0.231-0.029
predicted_SLG0.332-0.007
predicted_SO0.9130.011
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1220.000
predicted_3B0.0010.000
predicted_AB2.5990.000
predicted_AVG0.213-0.017
predicted_BB0.353-0.006
predicted_H0.555-0.031
predicted_HBP0.0050.000
predicted_HR0.069-0.004
predicted_OBP0.3070.012
predicted_R0.262-0.026
predicted_RBI0.210-0.021
predicted_SLG0.3400.008
predicted_SO0.9270.014
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.60), rates preserved: AVG=0.213 HR/AB=0.026

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.122
predicted_3B0.000-0.001
predicted_AB3.0000.401
predicted_AVG0.3330.120
predicted_BB0.000-0.353
predicted_H1.0000.445
predicted_HR0.000-0.069
predicted_OBP0.3330.026
predicted_R0.000-0.262
predicted_RBI0.000-0.210
predicted_SLG0.333-0.007
predicted_SO1.0000.073
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 40
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-13.0001.0001.0000.0000.0000.0000.0002.0004.0000.07690.20000.15380.07690.00000.00000.15380.3077
last_100.2010-24.0004.0002.0000.0000.0000.0001.0003.00011.0000.16670.25930.25000.16670.00000.00000.12500.4583
season0.6040-97.00022.0004.0000.0003.0008.00012.00014.00035.0000.22680.32430.36080.22680.03090.08250.14430.3608
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1520
predicted_3B0.0020
predicted_AB2.7550
predicted_AVG0.1988
predicted_BB0.3540
predicted_H0.5480
predicted_HBP0.0050
predicted_HR0.0600
predicted_OBP0.2922
predicted_R0.2550
predicted_RBI0.1840
predicted_SLG0.3212
predicted_SO0.9310
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.10300.15200.1220model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB2.50002.75502.5989model_form_blend
predicted_AVG0.25000.19880.2301model_form_blend
predicted_BB0.36100.35400.3583model_form_blend
predicted_H0.61000.54800.5860model_form_blend
predicted_HBP-0.00500.0050form_only
predicted_HR0.08000.06000.0722model_form_blend
predicted_OBP0.29800.29220.2958model_form_blend
predicted_R0.30900.25500.2881model_form_blend
predicted_RBI0.26000.18400.2305model_form_blend
predicted_SLG0.33900.32120.3321model_form_blend
predicted_SO0.90200.93100.9132model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date99
Season rows before report date99
Report year2026
Profile rows used40
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.227

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedRF
gameID20260617_CLE@MIL
game_typefull
mlbID681807
playerID681807
playerNameDavid Fry
posRF
startedTrue
startingPositionRF
teamCLE
teamID8
game_date2026-06-17
sl_k_percent30.4
sl_bb_percent14.8
sl_woba0.314
sl_xwoba0.269
sl_xba0.191
sl_xslg0.271
sl_sweet_spot_percent31.7
sl_barrel_batted_rate6.3
sl_hard_hit_percent31.7
sl_exit_velocity_avg86.1
sl_launch_angle_avg16.1
sl_whiff_percent31.0
sl_swing_percent42.2
Travis Bazzana (683953) · BATTER · 2B · Team CLE
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 128
All-history rows before 20260618: 128
System season_avg: 0.2480
Data season_avg (2026 season-to-date): 0.2827
Diff (system - data): -0.0347
System opponent_avg: 0.1670
System season_avg diverges from 2026 season-to-date by -0.0347. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2330.0000.000Hitting_2B0.2271.000-0.227-1.000
predicted_3B0.0230.0000.000Hitting_3B0.0080.000-0.0080.000
predicted_AB4.1504.0004.000Hitting_AB3.6483.0000.3521.000
predicted_AVG0.2260.0000.250Hitting_AVG0.2830.333-0.283-0.333
predicted_BB0.5120.0001.000Hitting_BB0.5941.000-0.594-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0620.000-0.0620.000
predicted_H0.9400.0001.000Hitting_H1.0311.000-1.031-1.000
predicted_HR0.1000.0000.000Hitting_HR0.1020.000-0.1020.000
predicted_OBP0.3280.0000.400Hitting_OBP0.3940.500-0.394-0.500
predicted_R0.3950.0000.000Hitting_R0.4611.000-0.461-1.000
predicted_RBI0.3800.0000.000Hitting_RBI0.4220.000-0.4220.000
predicted_SB-0.0000.000BaseRunning_SB0.2810.000-0.2810.000
predicted_SLG0.3720.0000.250Hitting_SLG0.4330.667-0.433-0.667
predicted_SO0.8142.0001.000Hitting_SO0.7660.0001.2342.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics1
Deboosted Metrics10
Better Metrics0
Worse Metrics11
Biggest Boostpredicted_SO: 0.8140 -> 2.0000 (boost 1.1860, worse)
Biggest Deboostpredicted_H: 0.9400 -> 0.0000 (deboost -0.9400, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend20202-predicted_AB: 4.1500 -> 3.9232 (deboost -0.2268, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3307 -> 0.3070 (deboost -0.0237, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling74334predicted_BB: 0.5287 -> 1.0000 (boost 0.4713, better)predicted_RBI: 0.3166 -> 0.0000 (deboost -0.3166, worse)AB rounded to 4 (raw=4.15), rates preserved: AVG=0.202 HR/AB=0.021
5consistency_constraints10101-predicted_R: 0.3800 -> 0.0000 (deboost -0.3800, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_OBP: 0.3070 -> 0.4000 (boost 0.0930, better)predicted_SLG: 0.3501 -> 0.2500 (deboost -0.1001, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference31203predicted_SO: 1.0000 -> 2.0000 (boost 1.0000, worse)predicted_BB: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.2500 -> 0.3501 (boost 0.1001, better)predicted_OBP: 0.4000 -> 0.3070 (deboost -0.0930, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "683953",
  "player_name": "Travis Bazzana",
  "position": "2B",
  "team": "CLE",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.233,
        "predicted_3B": 0.023,
        "predicted_AB": 4.15,
        "predicted_AVG": 0.226,
        "predicted_BB": 0.512,
        "predicted_H": 0.94,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.328,
        "predicted_R": 0.395,
        "predicted_RBI": 0.38,
        "predicted_SLG": 0.372,
        "predicted_SO": 0.814
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2191,
        "predicted_3B": 0.0263,
        "predicted_AB": 3.9232,
        "predicted_AVG": 0.2253,
        "predicted_BB": 0.5369,
        "predicted_H": 0.8852,
        "predicted_HBP": 0.028,
        "predicted_HR": 0.0926,
        "predicted_OBP": 0.3307,
        "predicted_R": 0.4179,
        "predicted_RBI": 0.3481,
        "predicted_SLG": 0.3691,
        "predicted_SO": 0.8062
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.233,
          "after": 0.2191,
          "delta": -0.0139,
          "percent_delta": -0.0597,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.023,
          "after": 0.0263,
          "delta": 0.0033,
          "percent_delta": 0.1435,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.15,
          "after": 3.9232,
          "delta": -0.2268,
          "percent_delta": -0.0547,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.226,
          "after": 0.2253,
          "delta": -0.0007,
          "percent_delta": -0.0031,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.512,
          "after": 0.5369,
          "delta": 0.0249,
          "percent_delta": 0.0486,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.94,
          "after": 0.8852,
          "delta": -0.0548,
          "percent_delta": -0.0583,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.0926,
          "delta": -0.0074,
          "percent_delta": -0.074,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.328,
          "after": 0.3307,
          "delta": 0.0027,
          "percent_delta": 0.0082,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.395,
          "after": 0.4179,
          "delta": 0.0229,
          "percent_delta": 0.058,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.38,
          "after": 0.3481,
          "delta": -0.0319,
          "percent_delta": -0.0839,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.372,
          "after": 0.3691,
          "delta": -0.0029,
          "percent_delta": -0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.814,
          "after": 0.8062,
          "delta": -0.0078,
          "percent_delta": -0.0096,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.15,
          "after": 3.9232,
          "delta": -0.2268,
          "percent_delta": -0.0547,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 43
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2191,
        "predicted_3B": 0.0263,
        "predicted_AB": 3.9232,
        "predicted_AVG": 0.2136,
        "predicted_BB": 0.5287,
        "predicted_H": 0.8381,
        "predicted_HBP": 0.028,
        "predicted_HR": 0.0879,
        "predicted_OBP": 0.307,
        "predicted_R": 0.38,
        "predicted_RBI": 0.3166,
        "predicted_SLG": 0.3501,
        "predicted_SO": 0.8185
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2191,
          "after": 0.2191,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0263,
          "after": 0.0263,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9232,
          "after": 3.9232,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2253,
          "after": 0.2136,
          "delta": -0.0117,
          "percent_delta": -0.0519,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.5369,
          "after": 0.5287,
          "delta": -0.0082,
          "percent_delta": -0.0153,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8852,
          "after": 0.8381,
          "delta": -0.0471,
          "percent_delta": -0.0532,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.028,
          "after": 0.028,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0926,
          "after": 0.0879,
          "delta": -0.0047,
          "percent_delta": -0.0508,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3307,
          "after": 0.307,
          "delta": -0.0237,
          "percent_delta": -0.0717,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4179,
          "after": 0.38,
          "delta": -0.0379,
          "percent_delta": -0.0907,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3481,
          "after": 0.3166,
          "delta": -0.0315,
          "percent_delta": -0.0905,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3691,
          "after": 0.3501,
          "delta": -0.019,
          "percent_delta": -0.0515,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8062,
          "after": 0.8185,
          "delta": 0.0123,
          "percent_delta": 0.0153,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3307,
          "after": 0.307,
          "delta": -0.0237,
          "percent_delta": -0.0717,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.15), rates preserved: AVG=0.202 HR/AB=0.021",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2191,
          "after": 0.0,
          "delta": -0.2191,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0263,
          "after": 0.0,
          "delta": -0.0263,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9232,
          "after": 4.0,
          "delta": 0.0768,
          "percent_delta": 0.0196,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.5287,
          "after": 1.0,
          "delta": 0.4713,
          "percent_delta": 0.8914,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8381,
          "after": 1.0,
          "delta": 0.1619,
          "percent_delta": 0.1932,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.028,
          "after": 0.0,
          "delta": -0.028,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0879,
          "after": 0.0,
          "delta": -0.0879,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3166,
          "after": 0.0,
          "delta": -0.3166,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8185,
          "after": 1.0,
          "delta": 0.1815,
          "percent_delta": 0.2217,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 4,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.5287,
          "after": 1.0,
          "delta": 0.4713,
          "percent_delta": 0.8914,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3166,
          "after": 0.0,
          "delta": -0.3166,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.38,
          "after": 0.0,
          "delta": -0.38,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.38,
          "after": 0.0,
          "delta": -0.38,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.4,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2136,
          "after": 0.25,
          "delta": 0.0364,
          "percent_delta": 0.1704,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.307,
          "after": 0.4,
          "delta": 0.093,
          "percent_delta": 0.3029,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3501,
          "after": 0.25,
          "delta": -0.1001,
          "percent_delta": -0.2859,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.307,
          "after": 0.4,
          "delta": 0.093,
          "percent_delta": 0.3029,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3501,
          "after": 0.25,
          "delta": -0.1001,
          "percent_delta": -0.2859,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2136,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.307,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3501,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2136,
          "delta": -0.0364,
          "percent_delta": -0.1455,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.307,
          "delta": -0.093,
          "percent_delta": -0.2325,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3501,
          "delta": 0.1001,
          "percent_delta": 0.4003,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3501,
          "delta": 0.1001,
          "percent_delta": 0.4003,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.307,
          "delta": -0.093,
          "percent_delta": -0.2325,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.233,
        "after": 0.0,
        "delta": -0.233,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.023,
        "after": 0.0,
        "delta": -0.023,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.15,
        "after": 4.0,
        "delta": -0.15,
        "percent_delta": -0.0361,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.226,
        "after": 0.2136,
        "delta": -0.0124,
        "percent_delta": -0.0549,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.512,
        "after": 0.0,
        "delta": -0.512,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.94,
        "after": 0.0,
        "delta": -0.94,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.328,
        "after": 0.307,
        "delta": -0.021,
        "percent_delta": -0.064,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.395,
        "after": 0.0,
        "delta": -0.395,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.38,
        "after": 0.0,
        "delta": -0.38,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.372,
        "after": 0.3501,
        "delta": -0.0219,
        "percent_delta": -0.0589,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.814,
        "after": 2.0,
        "delta": 1.186,
        "percent_delta": 1.457,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 1,
      "deboosted_metrics": 10,
      "better_metrics": 0,
      "worse_metrics": 11,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.814,
        "after": 2.0,
        "delta": 1.186,
        "percent_delta": 1.457,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.94,
        "after": 0.0,
        "delta": -0.94,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.233-
predicted_3B0.023-
predicted_AB4.150-
predicted_AVG0.226-
predicted_BB0.512-
predicted_H0.940-
predicted_HR0.100-
predicted_OBP0.328-
predicted_R0.395-
predicted_RBI0.380-
predicted_SLG0.372-
predicted_SO0.814-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.219-0.014
predicted_3B0.0260.003
predicted_AB3.923-0.227
predicted_AVG0.225-0.001
predicted_BB0.5370.025
predicted_H0.885-0.055
predicted_HBP0.028-
predicted_HR0.093-0.007
predicted_OBP0.3310.003
predicted_R0.4180.023
predicted_RBI0.348-0.032
predicted_SLG0.369-0.003
predicted_SO0.806-0.008
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2190.000
predicted_3B0.0260.000
predicted_AB3.9230.000
predicted_AVG0.214-0.012
predicted_BB0.529-0.008
predicted_H0.838-0.047
predicted_HBP0.0280.000
predicted_HR0.088-0.005
predicted_OBP0.307-0.024
predicted_R0.380-0.038
predicted_RBI0.317-0.032
predicted_SLG0.350-0.019
predicted_SO0.8190.012
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.15), rates preserved: AVG=0.202 HR/AB=0.021

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.219
predicted_3B0.000-0.026
predicted_AB4.0000.077
predicted_AVG0.2500.036
predicted_BB1.0000.471
predicted_H1.0000.162
predicted_HR0.000-0.088
predicted_OBP0.4000.093
predicted_R0.000-0.380
predicted_RBI0.000-0.317
predicted_SLG0.250-0.100
predicted_SO1.0000.181
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.000-1.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 43
Reference playing time: 4.150
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-16.0003.0001.0000.0000.0000.0003.0004.0003.0000.18750.35000.25000.18750.00000.00000.25000.1875
last_100.2010-36.0006.0001.0001.0001.0002.0004.0007.0009.0000.16670.30230.33330.16670.02780.05560.19440.2500
season0.6043-157.00039.00010.0001.0004.00017.00017.00022.00035.0000.24840.34620.40130.24840.02550.10830.14010.2229
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1990
predicted_3B0.0310
predicted_AB3.5950
predicted_AVG0.2242
predicted_BB0.5730
predicted_H0.8060
predicted_HBP0.0280
predicted_HR0.0820
predicted_OBP0.3347
predicted_R0.4510
predicted_RBI0.3020
predicted_SLG0.3648
predicted_SO0.7950
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.23300.19900.2191model_form_blend
predicted_3B0.02300.03100.0263model_form_blend
predicted_AB4.15003.59503.9232model_form_blend
predicted_AVG0.22600.22420.2253model_form_blend
predicted_BB0.51200.57300.5369model_form_blend
predicted_H0.94000.80600.8852model_form_blend
predicted_HBP-0.02800.0280form_only
predicted_HR0.10000.08200.0926model_form_blend
predicted_OBP0.32800.33470.3307model_form_blend
predicted_R0.39500.45100.4179model_form_blend
predicted_RBI0.38000.30200.3481model_form_blend
predicted_SLG0.37200.36480.3691model_form_blend
predicted_SO0.81400.79500.8062model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date128
Season rows before report date128
Report year2026
Profile rows used43
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO2
SF0
HBP0
season_avg0.248

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB1
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB2
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_CLE@MIL
game_typefull
mlbID683953
playerID683953
playerNameTravis Bazzana
pos2B
startedTrue
startingPosition2B
teamCLE
teamID8
game_date2026-06-17
sl_k_percent19.2
sl_bb_percent12.1
sl_woba0.332
sl_xwoba0.309
sl_xba0.235
sl_xslg0.352
sl_sweet_spot_percent29.3
sl_barrel_batted_rate3.3
sl_hard_hit_percent35.5
sl_exit_velocity_avg88.6
sl_launch_angle_avg13.1
sl_whiff_percent25.0
sl_swing_percent44.2
Kahlil Watson (696135) · BATTER · RF · Team CLE
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 0
All-history rows before 20260618: 0
System season_avg: 0.2505
Data season_avg (2026 season-to-date): -
Diff (system - data): -
System opponent_avg: 0.2505

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1560.0000.000Hitting_2B----
predicted_3B0.0120.0000.000Hitting_3B----
predicted_AB3.2112.0003.000Hitting_AB----
predicted_AVG0.2500.5000.333Hitting_AVG----
predicted_BB0.3041.0000.000Hitting_BB----
predicted_CS-0.0000.000BaseRunning_CS----
predicted_H0.8041.0001.000Hitting_H----
predicted_HR0.1070.0000.000Hitting_HR----
predicted_OBP0.3150.6670.333Hitting_OBP----
predicted_R0.4150.0000.000Hitting_R----
predicted_RBI0.3990.0000.000Hitting_RBI----
predicted_SLG0.4070.5000.333Hitting_SLG----
predicted_SO0.8591.0001.000Hitting_SO----

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics2
Worse Metrics9
Biggest Boostpredicted_BB: 0.3040 -> 1.0000 (boost 0.6960, better)
Biggest Deboostpredicted_AB: 3.2110 -> 2.0000 (deboost -1.2110, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend11010predicted_AB: 3.2110 -> 3.3140 (boost 0.1030, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.4074 -> 0.3885 (deboost -0.0189, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_H: 0.7857 -> 1.0000 (boost 0.2143, better)predicted_RBI: 0.3785 -> 0.0000 (deboost -0.3785, worse)AB rounded to 3 (raw=3.31), rates preserved: AVG=0.237 HR/AB=0.032
5consistency_constraints10101-predicted_R: 0.3897 -> 0.0000 (deboost -0.3897, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2371 -> 0.3330 (boost 0.0959, better)predicted_SLG: 0.3885 -> 0.3330 (deboost -0.0555, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21111predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 3.0000 -> 2.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.3885 (boost 0.0555, better)predicted_AVG: 0.3330 -> 0.2371 (deboost -0.0959, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "696135",
  "player_name": "Kahlil Watson",
  "position": "RF",
  "team": "CLE",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.156,
        "predicted_3B": 0.012,
        "predicted_AB": 3.211,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.304,
        "predicted_H": 0.804,
        "predicted_HR": 0.107,
        "predicted_OBP": 0.315,
        "predicted_R": 0.415,
        "predicted_RBI": 0.399,
        "predicted_SLG": 0.407,
        "predicted_SO": 0.859
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1612,
        "predicted_3B": 0.0125,
        "predicted_AB": 3.314,
        "predicted_AVG": 0.2501,
        "predicted_BB": 0.3029,
        "predicted_H": 0.8298,
        "predicted_HBP": 0.035,
        "predicted_HR": 0.1109,
        "predicted_OBP": 0.3147,
        "predicted_R": 0.4285,
        "predicted_RBI": 0.4162,
        "predicted_SLG": 0.4074,
        "predicted_SO": 0.8579
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.156,
          "after": 0.1612,
          "delta": 0.0052,
          "percent_delta": 0.0333,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.012,
          "after": 0.0125,
          "delta": 0.0005,
          "percent_delta": 0.0417,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.211,
          "after": 3.314,
          "delta": 0.103,
          "percent_delta": 0.0321,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2501,
          "delta": 0.0001,
          "percent_delta": 0.0004,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.304,
          "after": 0.3029,
          "delta": -0.0011,
          "percent_delta": -0.0036,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.804,
          "after": 0.8298,
          "delta": 0.0258,
          "percent_delta": 0.0321,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.107,
          "after": 0.1109,
          "delta": 0.0039,
          "percent_delta": 0.0364,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.315,
          "after": 0.3147,
          "delta": -0.0003,
          "percent_delta": -0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.415,
          "after": 0.4285,
          "delta": 0.0135,
          "percent_delta": 0.0325,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.399,
          "after": 0.4162,
          "delta": 0.0172,
          "percent_delta": 0.0431,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.407,
          "after": 0.4074,
          "delta": 0.0004,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.859,
          "after": 0.8579,
          "delta": -0.0011,
          "percent_delta": -0.0013,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.211,
          "after": 3.314,
          "delta": 0.103,
          "percent_delta": 0.0321,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 0,
        "last_10": 0,
        "season": 0
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1612,
        "predicted_3B": 0.0125,
        "predicted_AB": 3.314,
        "predicted_AVG": 0.2371,
        "predicted_BB": 0.2983,
        "predicted_H": 0.7857,
        "predicted_HBP": 0.035,
        "predicted_HR": 0.1052,
        "predicted_OBP": 0.3001,
        "predicted_R": 0.3897,
        "predicted_RBI": 0.3785,
        "predicted_SLG": 0.3885,
        "predicted_SO": 0.871
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1612,
          "after": 0.1612,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0125,
          "after": 0.0125,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.314,
          "after": 3.314,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2501,
          "after": 0.2371,
          "delta": -0.013,
          "percent_delta": -0.052,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3029,
          "after": 0.2983,
          "delta": -0.0046,
          "percent_delta": -0.0152,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8298,
          "after": 0.7857,
          "delta": -0.0441,
          "percent_delta": -0.0531,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.035,
          "after": 0.035,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1109,
          "after": 0.1052,
          "delta": -0.0057,
          "percent_delta": -0.0514,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3147,
          "after": 0.3001,
          "delta": -0.0146,
          "percent_delta": -0.0464,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4285,
          "after": 0.3897,
          "delta": -0.0388,
          "percent_delta": -0.0905,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4162,
          "after": 0.3785,
          "delta": -0.0377,
          "percent_delta": -0.0906,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4074,
          "after": 0.3885,
          "delta": -0.0189,
          "percent_delta": -0.0464,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8579,
          "after": 0.871,
          "delta": 0.0131,
          "percent_delta": 0.0153,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4074,
          "after": 0.3885,
          "delta": -0.0189,
          "percent_delta": -0.0464,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.31), rates preserved: AVG=0.237 HR/AB=0.032",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1612,
          "after": 0.0,
          "delta": -0.1612,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0125,
          "after": 0.0,
          "delta": -0.0125,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.314,
          "after": 3.0,
          "delta": -0.314,
          "percent_delta": -0.0947,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2983,
          "after": 0.0,
          "delta": -0.2983,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7857,
          "after": 1.0,
          "delta": 0.2143,
          "percent_delta": 0.2728,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.035,
          "after": 0.0,
          "delta": -0.035,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1052,
          "after": 0.0,
          "delta": -0.1052,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3785,
          "after": 0.0,
          "delta": -0.3785,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.871,
          "after": 1.0,
          "delta": 0.129,
          "percent_delta": 0.1481,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.7857,
          "after": 1.0,
          "delta": 0.2143,
          "percent_delta": 0.2728,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3785,
          "after": 0.0,
          "delta": -0.3785,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3897,
          "after": 0.0,
          "delta": -0.3897,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3897,
          "after": 0.0,
          "delta": -0.3897,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2371,
          "after": 0.333,
          "delta": 0.0959,
          "percent_delta": 0.4045,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3001,
          "after": 0.333,
          "delta": 0.0329,
          "percent_delta": 0.1096,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3885,
          "after": 0.333,
          "delta": -0.0555,
          "percent_delta": -0.1429,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2371,
          "after": 0.333,
          "delta": 0.0959,
          "percent_delta": 0.4045,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3885,
          "after": 0.333,
          "delta": -0.0555,
          "percent_delta": -0.1429,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 2.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 2.0,
          "delta": -1.0,
          "percent_delta": -0.3333,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 2.0,
          "delta": -1.0,
          "percent_delta": -0.3333,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 2.0,
        "predicted_AVG": 0.2371,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3001,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_RF": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3885,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2371,
          "delta": -0.0959,
          "percent_delta": -0.2881,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3001,
          "delta": -0.0329,
          "percent_delta": -0.0989,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3885,
          "delta": 0.0555,
          "percent_delta": 0.1667,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3885,
          "delta": 0.0555,
          "percent_delta": 0.1667,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2371,
          "delta": -0.0959,
          "percent_delta": -0.2881,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.156,
        "after": 0.0,
        "delta": -0.156,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.012,
        "after": 0.0,
        "delta": -0.012,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.211,
        "after": 2.0,
        "delta": -1.211,
        "percent_delta": -0.3771,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.25,
        "after": 0.2371,
        "delta": -0.0129,
        "percent_delta": -0.0516,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.304,
        "after": 1.0,
        "delta": 0.696,
        "percent_delta": 2.2895,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.804,
        "after": 1.0,
        "delta": 0.196,
        "percent_delta": 0.2438,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.107,
        "after": 0.0,
        "delta": -0.107,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.315,
        "after": 0.3001,
        "delta": -0.0149,
        "percent_delta": -0.0473,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.415,
        "after": 0.0,
        "delta": -0.415,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.399,
        "after": 0.0,
        "delta": -0.399,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.407,
        "after": 0.3885,
        "delta": -0.0185,
        "percent_delta": -0.0455,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.859,
        "after": 1.0,
        "delta": 0.141,
        "percent_delta": 0.1641,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 2,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.304,
        "after": 1.0,
        "delta": 0.696,
        "percent_delta": 2.2895,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 3.211,
        "after": 2.0,
        "delta": -1.211,
        "percent_delta": -0.3771,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.156-
predicted_3B0.012-
predicted_AB3.211-
predicted_AVG0.250-
predicted_BB0.304-
predicted_H0.804-
predicted_HR0.107-
predicted_OBP0.315-
predicted_R0.415-
predicted_RBI0.399-
predicted_SLG0.407-
predicted_SO0.859-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1610.005
predicted_3B0.0130.001
predicted_AB3.3140.103
predicted_AVG0.2500.000
predicted_BB0.303-0.001
predicted_H0.8300.026
predicted_HBP0.035-
predicted_HR0.1110.004
predicted_OBP0.315-0.000
predicted_R0.4280.014
predicted_RBI0.4160.017
predicted_SLG0.4070.000
predicted_SO0.858-0.001
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1610.000
predicted_3B0.0130.000
predicted_AB3.3140.000
predicted_AVG0.237-0.013
predicted_BB0.298-0.005
predicted_H0.786-0.044
predicted_HBP0.0350.000
predicted_HR0.105-0.006
predicted_OBP0.300-0.015
predicted_R0.390-0.039
predicted_RBI0.379-0.038
predicted_SLG0.389-0.019
predicted_SO0.8710.013
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.31), rates preserved: AVG=0.237 HR/AB=0.032

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.161
predicted_3B0.000-0.013
predicted_AB3.000-0.314
predicted_AVG0.3330.096
predicted_BB0.000-0.298
predicted_H1.0000.214
predicted_HR0.000-0.105
predicted_OBP0.3330.033
predicted_R0.000-0.390
predicted_RBI0.000-0.379
predicted_SLG0.333-0.055
predicted_SO1.0000.129
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB2.000-1.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA3.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 0
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.200-0.0000.0000.0000.0000.0000.0000.0000.0000.000--------
last_100.200-0.0000.0000.0000.0000.0000.0000.0000.0000.000--------
season0.600-0.0000.0000.0000.0000.0000.0000.0000.0000.000--------
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1890
predicted_3B0.0150
predicted_AB3.8650
predicted_AVG0.2505
predicted_BB0.2970
predicted_H0.9680
predicted_HBP0.0350
predicted_HR0.1320
predicted_OBP0.3134
predicted_R0.5010
predicted_RBI0.5080
predicted_SLG0.4098
predicted_SO0.8520
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.15600.18900.1612model_form_blend
predicted_3B0.01200.01500.0125model_form_blend
predicted_AB3.21103.86503.3140model_form_blend
predicted_AVG0.25000.25050.2501model_form_blend
predicted_BB0.30400.29700.3029model_form_blend
predicted_H0.80400.96800.8298model_form_blend
predicted_HBP-0.03500.0350form_only
predicted_HR0.10700.13200.1109model_form_blend
predicted_OBP0.31500.31340.3147model_form_blend
predicted_R0.41500.50100.4285model_form_blend
predicted_RBI0.39900.50800.4162model_form_blend
predicted_SLG0.40700.40980.4074model_form_blend
predicted_SO0.85900.85200.8579model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date0
Season rows before report date0
Report year2026
Profile rows used0
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA3
AB2
H1
2B0
3B0
HR0
R0
RBI0
BB1
SO1
SF0
HBP0
season_avg0.0

Latest Real Data Snapshot (before report date)

No historical data found for this player before report date.

Kyle Manzardo (700932) · BATTER · DH · Team CLE
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 183
All-history rows before 20260618: 183
System season_avg: 0.2360
Data season_avg (2026 season-to-date): 0.2177
Diff (system - data): 0.0183
System opponent_avg: 0.1430
System season_avg diverges from 2026 season-to-date by 0.0183. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1110.0000.000Hitting_2B0.1040.000-0.1040.000
predicted_3B0.0160.0000.000Hitting_3B0.0160.000-0.0160.000
predicted_AB3.1903.0003.000Hitting_AB3.5144.000-0.514-1.000
predicted_AVG0.2440.0000.333Hitting_AVG0.2180.250-0.218-0.250
predicted_BB0.3491.0000.000Hitting_BB0.3880.0000.6121.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.7800.0001.000Hitting_H0.7651.000-0.765-1.000
predicted_HR0.1000.0000.000Hitting_HR0.0980.000-0.0980.000
predicted_OBP0.3210.2500.333Hitting_OBP0.3020.250-0.0520.000
predicted_R0.3810.0000.000Hitting_R0.4371.000-0.437-1.000
predicted_RBI0.3400.0000.000Hitting_RBI0.3440.000-0.3440.000
predicted_SLG0.3630.0000.333Hitting_SLG0.3410.250-0.341-0.250
predicted_SO1.1593.0001.000Hitting_SO1.3112.0001.6891.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics2
Deboosted Metrics9
Better Metrics1
Worse Metrics10
Biggest Boostpredicted_SO: 1.1590 -> 3.0000 (boost 1.8410, worse)
Biggest Deboostpredicted_H: 0.7800 -> 0.0000 (deboost -0.7800, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend10101-predicted_SLG: 0.3630 -> 0.3547 (deboost -0.0083, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3225 -> 0.3066 (deboost -0.0159, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71625predicted_H: 0.7248 -> 1.0000 (boost 0.2752, better)predicted_BB: 0.3588 -> 0.0000 (deboost -0.3588, worse)AB rounded to 3 (raw=3.19), rates preserved: AVG=0.227 HR/AB=0.026
5consistency_constraints10101-predicted_R: 0.3265 -> 0.0000 (deboost -0.3265, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2283 -> 0.3330 (boost 0.1047, better)predicted_SLG: 0.3496 -> 0.3330 (deboost -0.0166, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference32112predicted_SO: 1.0000 -> 3.0000 (boost 2.0000, worse)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.3496 (boost 0.0166, better)predicted_AVG: 0.3330 -> 0.2283 (deboost -0.1047, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "700932",
  "player_name": "Kyle Manzardo",
  "position": "DH",
  "team": "CLE",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.111,
        "predicted_3B": 0.016,
        "predicted_AB": 3.19,
        "predicted_AVG": 0.244,
        "predicted_BB": 0.349,
        "predicted_H": 0.78,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.321,
        "predicted_R": 0.381,
        "predicted_RBI": 0.34,
        "predicted_SLG": 0.363,
        "predicted_SO": 1.159
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1056,
        "predicted_3B": 0.0135,
        "predicted_AB": 3.1751,
        "predicted_AVG": 0.2408,
        "predicted_BB": 0.3644,
        "predicted_H": 0.7655,
        "predicted_HBP": 0.029,
        "predicted_HR": 0.0888,
        "predicted_OBP": 0.3225,
        "predicted_R": 0.359,
        "predicted_RBI": 0.3139,
        "predicted_SLG": 0.3547,
        "predicted_SO": 1.132
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.111,
          "after": 0.1056,
          "delta": -0.0054,
          "percent_delta": -0.0486,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.016,
          "after": 0.0135,
          "delta": -0.0025,
          "percent_delta": -0.1563,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.19,
          "after": 3.1751,
          "delta": -0.0149,
          "percent_delta": -0.0047,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.244,
          "after": 0.2408,
          "delta": -0.0032,
          "percent_delta": -0.0131,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.349,
          "after": 0.3644,
          "delta": 0.0154,
          "percent_delta": 0.0441,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.78,
          "after": 0.7655,
          "delta": -0.0145,
          "percent_delta": -0.0186,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.0888,
          "delta": -0.0112,
          "percent_delta": -0.112,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.321,
          "after": 0.3225,
          "delta": 0.0015,
          "percent_delta": 0.0047,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.381,
          "after": 0.359,
          "delta": -0.022,
          "percent_delta": -0.0577,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.34,
          "after": 0.3139,
          "delta": -0.0261,
          "percent_delta": -0.0768,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.363,
          "after": 0.3547,
          "delta": -0.0083,
          "percent_delta": -0.0229,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.159,
          "after": 1.132,
          "delta": -0.027,
          "percent_delta": -0.0233,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.363,
          "after": 0.3547,
          "delta": -0.0083,
          "percent_delta": -0.0229,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 63
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1056,
        "predicted_3B": 0.0135,
        "predicted_AB": 3.1751,
        "predicted_AVG": 0.2283,
        "predicted_BB": 0.3588,
        "predicted_H": 0.7248,
        "predicted_HBP": 0.029,
        "predicted_HR": 0.0843,
        "predicted_OBP": 0.3066,
        "predicted_R": 0.3265,
        "predicted_RBI": 0.2855,
        "predicted_SLG": 0.3496,
        "predicted_SO": 1.1493
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1056,
          "after": 0.1056,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0135,
          "after": 0.0135,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.1751,
          "after": 3.1751,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2408,
          "after": 0.2283,
          "delta": -0.0125,
          "percent_delta": -0.0519,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3644,
          "after": 0.3588,
          "delta": -0.0056,
          "percent_delta": -0.0154,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7655,
          "after": 0.7248,
          "delta": -0.0407,
          "percent_delta": -0.0532,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.029,
          "after": 0.029,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0888,
          "after": 0.0843,
          "delta": -0.0045,
          "percent_delta": -0.0507,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3225,
          "after": 0.3066,
          "delta": -0.0159,
          "percent_delta": -0.0493,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.359,
          "after": 0.3265,
          "delta": -0.0325,
          "percent_delta": -0.0905,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3139,
          "after": 0.2855,
          "delta": -0.0284,
          "percent_delta": -0.0905,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3547,
          "after": 0.3496,
          "delta": -0.0051,
          "percent_delta": -0.0144,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.132,
          "after": 1.1493,
          "delta": 0.0173,
          "percent_delta": 0.0153,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3225,
          "after": 0.3066,
          "delta": -0.0159,
          "percent_delta": -0.0493,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.19), rates preserved: AVG=0.227 HR/AB=0.026",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1056,
          "after": 0.0,
          "delta": -0.1056,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0135,
          "after": 0.0,
          "delta": -0.0135,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.1751,
          "after": 3.0,
          "delta": -0.1751,
          "percent_delta": -0.0551,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3588,
          "after": 0.0,
          "delta": -0.3588,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7248,
          "after": 1.0,
          "delta": 0.2752,
          "percent_delta": 0.3797,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.029,
          "after": 0.0,
          "delta": -0.029,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0843,
          "after": 0.0,
          "delta": -0.0843,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2855,
          "after": 0.0,
          "delta": -0.2855,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1493,
          "after": 1.0,
          "delta": -0.1493,
          "percent_delta": -0.1299,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.7248,
          "after": 1.0,
          "delta": 0.2752,
          "percent_delta": 0.3797,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3588,
          "after": 0.0,
          "delta": -0.3588,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3265,
          "after": 0.0,
          "delta": -0.3265,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3265,
          "after": 0.0,
          "delta": -0.3265,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2283,
          "after": 0.333,
          "delta": 0.1047,
          "percent_delta": 0.4586,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3066,
          "after": 0.333,
          "delta": 0.0264,
          "percent_delta": 0.0861,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3496,
          "after": 0.333,
          "delta": -0.0166,
          "percent_delta": -0.0475,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2283,
          "after": 0.333,
          "delta": 0.1047,
          "percent_delta": 0.4586,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3496,
          "after": 0.333,
          "delta": -0.0166,
          "percent_delta": -0.0475,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2283,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3066,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3496,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2283,
          "delta": -0.1047,
          "percent_delta": -0.3145,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3066,
          "delta": -0.0264,
          "percent_delta": -0.0792,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3496,
          "delta": 0.0166,
          "percent_delta": 0.05,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3496,
          "delta": 0.0166,
          "percent_delta": 0.05,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2283,
          "delta": -0.1047,
          "percent_delta": -0.3145,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.111,
        "after": 0.0,
        "delta": -0.111,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.016,
        "after": 0.0,
        "delta": -0.016,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.19,
        "after": 3.0,
        "delta": -0.19,
        "percent_delta": -0.0596,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.244,
        "after": 0.2283,
        "delta": -0.0157,
        "percent_delta": -0.0643,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.349,
        "after": 1.0,
        "delta": 0.651,
        "percent_delta": 1.8653,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.78,
        "after": 0.0,
        "delta": -0.78,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.321,
        "after": 0.3066,
        "delta": -0.0144,
        "percent_delta": -0.0449,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.381,
        "after": 0.0,
        "delta": -0.381,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.34,
        "after": 0.0,
        "delta": -0.34,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.363,
        "after": 0.3496,
        "delta": -0.0134,
        "percent_delta": -0.0369,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.159,
        "after": 3.0,
        "delta": 1.841,
        "percent_delta": 1.5884,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 2,
      "deboosted_metrics": 9,
      "better_metrics": 1,
      "worse_metrics": 10,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 1.159,
        "after": 3.0,
        "delta": 1.841,
        "percent_delta": 1.5884,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.78,
        "after": 0.0,
        "delta": -0.78,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.111-
predicted_3B0.016-
predicted_AB3.190-
predicted_AVG0.244-
predicted_BB0.349-
predicted_H0.780-
predicted_HR0.100-
predicted_OBP0.321-
predicted_R0.381-
predicted_RBI0.340-
predicted_SLG0.363-
predicted_SO1.159-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.106-0.005
predicted_3B0.013-0.003
predicted_AB3.175-0.015
predicted_AVG0.241-0.003
predicted_BB0.3640.015
predicted_H0.765-0.015
predicted_HBP0.029-
predicted_HR0.089-0.011
predicted_OBP0.3230.002
predicted_R0.359-0.022
predicted_RBI0.314-0.026
predicted_SLG0.355-0.008
predicted_SO1.132-0.027
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1060.000
predicted_3B0.0130.000
predicted_AB3.1750.000
predicted_AVG0.228-0.012
predicted_BB0.359-0.006
predicted_H0.725-0.041
predicted_HBP0.0290.000
predicted_HR0.084-0.005
predicted_OBP0.307-0.016
predicted_R0.327-0.032
predicted_RBI0.285-0.028
predicted_SLG0.350-0.005
predicted_SO1.1490.017
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.19), rates preserved: AVG=0.227 HR/AB=0.026

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.106
predicted_3B0.000-0.013
predicted_AB3.000-0.175
predicted_AVG0.3330.105
predicted_BB0.000-0.359
predicted_H1.0000.275
predicted_HR0.000-0.084
predicted_OBP0.3330.026
predicted_R0.000-0.327
predicted_RBI0.000-0.285
predicted_SLG0.333-0.017
predicted_SO1.000-0.149
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO3.0002.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 63
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-16.0004.0000.0000.0000.0000.0001.0002.0006.0000.25000.33330.25000.25000.00000.00000.12500.3750
last_100.2010-28.0006.0001.0000.0000.0002.0002.0005.0009.0000.21430.33330.25000.21430.00000.07140.17860.3214
season0.6063-195.00046.0007.0001.0007.00022.00024.00022.00073.0000.23590.32130.38970.23590.03590.11280.11280.3744
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0980
predicted_3B0.0100
predicted_AB3.1540
predicted_AVG0.2363
predicted_BB0.3860
predicted_H0.7450
predicted_HBP0.0290
predicted_HR0.0730
predicted_OBP0.3246
predicted_R0.3280
predicted_RBI0.2770
predicted_SLG0.3429
predicted_SO1.0940
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.11100.09800.1056model_form_blend
predicted_3B0.01600.01000.0135model_form_blend
predicted_AB3.19003.15403.1751model_form_blend
predicted_AVG0.24400.23630.2408model_form_blend
predicted_BB0.34900.38600.3644model_form_blend
predicted_H0.78000.74500.7655model_form_blend
predicted_HBP-0.02900.0290form_only
predicted_HR0.10000.07300.0888model_form_blend
predicted_OBP0.32100.32460.3225model_form_blend
predicted_R0.38100.32800.3590model_form_blend
predicted_RBI0.34000.27700.3139model_form_blend
predicted_SLG0.36300.34290.3547model_form_blend
predicted_SO1.15901.09401.1320model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date183
Season rows before report date183
Report year2026
Profile rows used63
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO3
SF0
HBP0
season_avg0.236

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB1
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B
gameID20260617_CLE@MIL
game_typefull
mlbID700932
playerID700932
playerNameKyle Manzardo
pos1B
startedTrue
startingPosition1B
teamCLE
teamID8
game_date2026-06-17
sl_k_percent32.9
sl_bb_percent10.4
sl_woba0.319
sl_xwoba0.313
sl_xba0.226
sl_xslg0.389
sl_sweet_spot_percent34.1
sl_barrel_batted_rate11.4
sl_hard_hit_percent42.3
sl_exit_velocity_avg89.3
sl_launch_angle_avg17.3
sl_whiff_percent30.4
sl_swing_percent46.4
Gabriel Arias (672356) · BATTER · 3B · Team CLE
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 33
All-history rows before 20260618: 33
System season_avg: 0.2580
Data season_avg (2026 season-to-date): 0.2617
Diff (system - data): -0.0037
System opponent_avg: 0.2580

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1000.0000.000Hitting_2B0.0610.000-0.0610.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.1504.0003.000Hitting_AB3.2424.0000.7580.000
predicted_AVG0.2770.2500.333Hitting_AVG0.2620.500-0.012-0.250
predicted_BB0.2000.0000.000Hitting_BB0.1820.000-0.1820.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.8701.0001.000Hitting_H0.8482.0000.152-1.000
predicted_HR0.1800.0000.000Hitting_HR0.1820.000-0.1820.000
predicted_OBP0.3450.2500.333Hitting_OBP0.3010.500-0.051-0.250
predicted_R0.2000.0000.000Hitting_R0.1820.000-0.1820.000
predicted_RBI0.5500.0000.000Hitting_RBI0.6361.000-0.636-1.000
predicted_SLG0.5090.2500.333Hitting_SLG0.4490.500-0.199-0.250
predicted_SO1.3001.0001.000Hitting_SO1.0912.000-0.091-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics2
Deboosted Metrics9
Better Metrics3
Worse Metrics8
Biggest Boostpredicted_AB: 3.1500 -> 4.0000 (boost 0.8500, better)
Biggest Deboostpredicted_RBI: 0.5500 -> 0.0000 (deboost -0.5500, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend65160predicted_AB: 3.1500 -> 3.2395 (boost 0.0895, better)predicted_SO: 1.3000 -> 1.2375 (deboost -0.0625, better)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot40404-predicted_RBI: 0.5845 -> 0.5315 (deboost -0.0530, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71625predicted_H: 0.8805 -> 1.0000 (boost 0.1195, better)predicted_RBI: 0.5315 -> 0.0000 (deboost -0.5315, worse)AB rounded to 3 (raw=3.24), rates preserved: AVG=0.272 HR/AB=0.058
5consistency_constraints10101-predicted_R: 0.2355 -> 0.0000 (deboost -0.2355, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2718 -> 0.3330 (boost 0.0612, better)predicted_SLG: 0.4834 -> 0.3330 (deboost -0.1504, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference11010predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.4834 (boost 0.1504, better)predicted_AVG: 0.3330 -> 0.2718 (deboost -0.0612, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "672356",
  "player_name": "Gabriel Arias",
  "position": "3B",
  "team": "CLE",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.1,
        "predicted_3B": 0.0,
        "predicted_AB": 3.15,
        "predicted_AVG": 0.277,
        "predicted_BB": 0.2,
        "predicted_H": 0.87,
        "predicted_HR": 0.18,
        "predicted_OBP": 0.345,
        "predicted_R": 0.2,
        "predicted_RBI": 0.55,
        "predicted_SLG": 0.509,
        "predicted_SO": 1.3
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1214,
        "predicted_3B": 0.0019,
        "predicted_AB": 3.2395,
        "predicted_AVG": 0.287,
        "predicted_BB": 0.2137,
        "predicted_H": 0.93,
        "predicted_HBP": 0.015,
        "predicted_HR": 0.1968,
        "predicted_OBP": 0.3495,
        "predicted_R": 0.259,
        "predicted_RBI": 0.5845,
        "predicted_SLG": 0.5268,
        "predicted_SO": 1.2375
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1,
          "after": 0.1214,
          "delta": 0.0214,
          "percent_delta": 0.214,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0019,
          "delta": 0.0019,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.15,
          "after": 3.2395,
          "delta": 0.0895,
          "percent_delta": 0.0284,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.277,
          "after": 0.287,
          "delta": 0.01,
          "percent_delta": 0.0361,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2,
          "after": 0.2137,
          "delta": 0.0137,
          "percent_delta": 0.0685,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.87,
          "after": 0.93,
          "delta": 0.06,
          "percent_delta": 0.069,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.18,
          "after": 0.1968,
          "delta": 0.0168,
          "percent_delta": 0.0933,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.345,
          "after": 0.3495,
          "delta": 0.0045,
          "percent_delta": 0.013,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.2,
          "after": 0.259,
          "delta": 0.059,
          "percent_delta": 0.295,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.55,
          "after": 0.5845,
          "delta": 0.0345,
          "percent_delta": 0.0627,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.509,
          "after": 0.5268,
          "delta": 0.0178,
          "percent_delta": 0.035,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.3,
          "after": 1.2375,
          "delta": -0.0625,
          "percent_delta": -0.0481,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 5,
        "deboosted_metrics": 1,
        "better_metrics": 6,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.15,
          "after": 3.2395,
          "delta": 0.0895,
          "percent_delta": 0.0284,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.3,
          "after": 1.2375,
          "delta": -0.0625,
          "percent_delta": -0.0481,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 10
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1214,
        "predicted_3B": 0.0019,
        "predicted_AB": 3.2395,
        "predicted_AVG": 0.2718,
        "predicted_BB": 0.2104,
        "predicted_H": 0.8805,
        "predicted_HBP": 0.015,
        "predicted_HR": 0.1867,
        "predicted_OBP": 0.3162,
        "predicted_R": 0.2355,
        "predicted_RBI": 0.5315,
        "predicted_SLG": 0.4834,
        "predicted_SO": 1.2564
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1214,
          "after": 0.1214,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0019,
          "after": 0.0019,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.2395,
          "after": 3.2395,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.287,
          "after": 0.2718,
          "delta": -0.0152,
          "percent_delta": -0.053,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2137,
          "after": 0.2104,
          "delta": -0.0033,
          "percent_delta": -0.0154,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.93,
          "after": 0.8805,
          "delta": -0.0495,
          "percent_delta": -0.0532,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.015,
          "after": 0.015,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1968,
          "after": 0.1867,
          "delta": -0.0101,
          "percent_delta": -0.0513,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3495,
          "after": 0.3162,
          "delta": -0.0333,
          "percent_delta": -0.0953,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.259,
          "after": 0.2355,
          "delta": -0.0235,
          "percent_delta": -0.0907,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5845,
          "after": 0.5315,
          "delta": -0.053,
          "percent_delta": -0.0907,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5268,
          "after": 0.4834,
          "delta": -0.0434,
          "percent_delta": -0.0824,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.2375,
          "after": 1.2564,
          "delta": 0.0189,
          "percent_delta": 0.0153,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 0,
        "deboosted_metrics": 4,
        "better_metrics": 0,
        "worse_metrics": 4,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.5845,
          "after": 0.5315,
          "delta": -0.053,
          "percent_delta": -0.0907,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.24), rates preserved: AVG=0.272 HR/AB=0.058",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1214,
          "after": 0.0,
          "delta": -0.1214,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0019,
          "after": 0.0,
          "delta": -0.0019,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.2395,
          "after": 3.0,
          "delta": -0.2395,
          "percent_delta": -0.0739,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2104,
          "after": 0.0,
          "delta": -0.2104,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8805,
          "after": 1.0,
          "delta": 0.1195,
          "percent_delta": 0.1357,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.015,
          "after": 0.0,
          "delta": -0.015,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1867,
          "after": 0.0,
          "delta": -0.1867,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5315,
          "after": 0.0,
          "delta": -0.5315,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.2564,
          "after": 1.0,
          "delta": -0.2564,
          "percent_delta": -0.2041,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.8805,
          "after": 1.0,
          "delta": 0.1195,
          "percent_delta": 0.1357,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.5315,
          "after": 0.0,
          "delta": -0.5315,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.2355,
          "after": 0.0,
          "delta": -0.2355,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.2355,
          "after": 0.0,
          "delta": -0.2355,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2718,
          "after": 0.333,
          "delta": 0.0612,
          "percent_delta": 0.2252,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3162,
          "after": 0.333,
          "delta": 0.0168,
          "percent_delta": 0.0531,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4834,
          "after": 0.333,
          "delta": -0.1504,
          "percent_delta": -0.3111,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2718,
          "after": 0.333,
          "delta": 0.0612,
          "percent_delta": 0.2252,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4834,
          "after": 0.333,
          "delta": -0.1504,
          "percent_delta": -0.3111,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2718,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3162,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4834,
        "predicted_SO": 1.0,
        "predicted_TB": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2718,
          "delta": -0.0612,
          "percent_delta": -0.1838,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3162,
          "delta": -0.0168,
          "percent_delta": -0.0504,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4834,
          "delta": 0.1504,
          "percent_delta": 0.4516,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4834,
          "delta": 0.1504,
          "percent_delta": 0.4516,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2718,
          "delta": -0.0612,
          "percent_delta": -0.1838,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.15,
        "after": 4.0,
        "delta": 0.85,
        "percent_delta": 0.2698,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.277,
        "after": 0.2718,
        "delta": -0.0052,
        "percent_delta": -0.0188,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.2,
        "after": 0.0,
        "delta": -0.2,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.87,
        "after": 1.0,
        "delta": 0.13,
        "percent_delta": 0.1494,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.18,
        "after": 0.0,
        "delta": -0.18,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.345,
        "after": 0.3162,
        "delta": -0.0288,
        "percent_delta": -0.0835,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.2,
        "after": 0.0,
        "delta": -0.2,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.55,
        "after": 0.0,
        "delta": -0.55,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.509,
        "after": 0.4834,
        "delta": -0.0256,
        "percent_delta": -0.0503,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.3,
        "after": 1.0,
        "delta": -0.3,
        "percent_delta": -0.2308,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 2,
      "deboosted_metrics": 9,
      "better_metrics": 3,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.15,
        "after": 4.0,
        "delta": 0.85,
        "percent_delta": 0.2698,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.55,
        "after": 0.0,
        "delta": -0.55,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.100-
predicted_3B0.000-
predicted_AB3.150-
predicted_AVG0.277-
predicted_BB0.200-
predicted_H0.870-
predicted_HR0.180-
predicted_OBP0.345-
predicted_R0.200-
predicted_RBI0.550-
predicted_SLG0.509-
predicted_SO1.300-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1210.021
predicted_3B0.0020.002
predicted_AB3.2400.090
predicted_AVG0.2870.010
predicted_BB0.2140.014
predicted_H0.9300.060
predicted_HBP0.015-
predicted_HR0.1970.017
predicted_OBP0.3490.005
predicted_R0.2590.059
predicted_RBI0.5850.034
predicted_SLG0.5270.018
predicted_SO1.238-0.062
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1210.000
predicted_3B0.0020.000
predicted_AB3.2400.000
predicted_AVG0.272-0.015
predicted_BB0.210-0.003
predicted_H0.880-0.050
predicted_HBP0.0150.000
predicted_HR0.187-0.010
predicted_OBP0.316-0.033
predicted_R0.235-0.024
predicted_RBI0.531-0.053
predicted_SLG0.483-0.043
predicted_SO1.2560.019
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.24), rates preserved: AVG=0.272 HR/AB=0.058

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.121
predicted_3B0.000-0.002
predicted_AB3.000-0.240
predicted_AVG0.3330.061
predicted_BB0.000-0.210
predicted_H1.0000.120
predicted_HR0.000-0.187
predicted_OBP0.3330.017
predicted_R0.000-0.235
predicted_RBI0.000-0.531
predicted_SLG0.333-0.150
predicted_SO1.000-0.256
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 10
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-15.0007.0001.0000.0002.0005.0002.0001.0006.0000.46670.50000.93330.46670.13330.33330.06670.4000
last_100.2010-31.0008.0001.0000.0002.0005.0002.0002.00013.0000.25810.30300.48390.25810.06450.16130.06450.4194
season0.6010-31.0008.0001.0000.0002.0005.0002.0002.00013.0000.25810.30300.48390.25810.06450.16130.06450.4194
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1690
predicted_3B0.0060
predicted_AB3.4380
predicted_AVG0.3091
predicted_BB0.2440
predicted_H1.0630
predicted_HBP0.0150
predicted_HR0.2340
predicted_OBP0.3596
predicted_R0.3900
predicted_RBI0.6610
predicted_SLG0.5663
predicted_SO1.0990
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.10000.16900.1214model_form_blend
predicted_3B0.00000.00600.0019model_form_blend
predicted_AB3.15003.43803.2395model_form_blend
predicted_AVG0.27700.30910.2870model_form_blend
predicted_BB0.20000.24400.2137model_form_blend
predicted_H0.87001.06300.9300model_form_blend
predicted_HBP-0.01500.0150form_only
predicted_HR0.18000.23400.1968model_form_blend
predicted_OBP0.34500.35960.3495model_form_blend
predicted_R0.20000.39000.2590model_form_blend
predicted_RBI0.55000.66100.5845model_form_blend
predicted_SLG0.50900.56630.5268model_form_blend
predicted_SO1.30001.09901.2375model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date33
Season rows before report date33
Report year2026
Profile rows used10
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.258

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E1
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.5
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB2
Hitting_battingOrder8
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260616_CLE@MIL
game_typefull
mlbID672356
playerID672356
playerNameGabriel Arias
posSS
startedTrue
startingPosition3B
teamCLE
teamID8
game_date2026-06-16
sl_k_percent38.9
sl_bb_percent5.6
sl_woba0.312
sl_xwoba0.305
sl_xba0.235
sl_xslg0.423
sl_sweet_spot_percent30.0
sl_barrel_batted_rate15.0
sl_hard_hit_percent55.0
sl_exit_velocity_avg95.0
sl_launch_angle_avg5.5
sl_whiff_percent42.4
sl_swing_percent45.5
Stuart Fairchild (656413) · BATTER · CF · Team CLE
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 9
All-history rows before 20260618: 9
System season_avg: 0.2140
Data season_avg (2026 season-to-date): 0.2143
Diff (system - data): -0.0003
System opponent_avg: 0.2140

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0000.0000.000Hitting_2B0.0000.0000.0000.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.5004.0003.000Hitting_AB1.5562.0002.4442.000
predicted_AVG0.3000.0000.333Hitting_AVG0.2140.000-0.2140.000
predicted_BB0.8930.0001.000Hitting_BB0.6671.000-0.667-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.1900.0001.000Hitting_H0.3330.000-0.3330.000
predicted_HR0.0300.0000.000Hitting_HR0.0000.0000.0000.000
predicted_OBP0.3590.0000.500Hitting_OBP0.4760.333-0.476-0.333
predicted_R0.5360.0001.000Hitting_R0.3331.000-0.333-1.000
predicted_RBI0.1300.0000.000Hitting_RBI0.1110.000-0.1110.000
predicted_SLG0.3580.0000.333Hitting_SLG0.2140.000-0.2140.000
predicted_SO1.7861.0002.000Hitting_SO1.1112.000-0.111-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics1
Deboosted Metrics8
Better Metrics2
Worse Metrics7
Biggest Boostpredicted_AB: 2.5000 -> 4.0000 (boost 1.5000, better)
Biggest Deboostpredicted_BB: 0.8930 -> 0.0000 (deboost -0.8930, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend64251predicted_H: 0.1900 -> 0.3649 (boost 0.1749, better)predicted_SO: 1.7860 -> 1.6089 (deboost -0.1771, better)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot40404-predicted_SLG: 0.3601 -> 0.1828 (deboost -0.1773, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling63324predicted_SO: 1.6335 -> 2.0000 (boost 0.3665, worse)predicted_H: 0.3455 -> 0.0000 (deboost -0.3455, worse)AB rounded to 3 (raw=2.65), rates preserved: AVG=0.130 HR/AB=0.014
5consistency_constraints22020predicted_H: 0.0000 -> 1.0000 (boost 1.0000, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.1302 -> 0.3330 (boost 0.2028, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference51423predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)predicted_BB: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.1302 (deboost -0.2028, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "656413",
  "player_name": "Stuart Fairchild",
  "position": "CF",
  "team": "CLE",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 2.5,
        "predicted_AVG": 0.3,
        "predicted_BB": 0.893,
        "predicted_H": 0.19,
        "predicted_HR": 0.03,
        "predicted_OBP": 0.359,
        "predicted_R": 0.536,
        "predicted_RBI": 0.13,
        "predicted_SLG": 0.358,
        "predicted_SO": 1.786
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0247,
        "predicted_3B": 0.0019,
        "predicted_AB": 2.6543,
        "predicted_AVG": 0.2918,
        "predicted_BB": 0.8543,
        "predicted_H": 0.3649,
        "predicted_HBP": 0.139,
        "predicted_HR": 0.0391,
        "predicted_OBP": 0.3732,
        "predicted_R": 0.5549,
        "predicted_RBI": 0.1942,
        "predicted_SLG": 0.3601,
        "predicted_SO": 1.6089
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0247,
          "delta": 0.0247,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0019,
          "delta": 0.0019,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.5,
          "after": 2.6543,
          "delta": 0.1543,
          "percent_delta": 0.0617,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.3,
          "after": 0.2918,
          "delta": -0.0082,
          "percent_delta": -0.0273,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.893,
          "after": 0.8543,
          "delta": -0.0387,
          "percent_delta": -0.0433,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.19,
          "after": 0.3649,
          "delta": 0.1749,
          "percent_delta": 0.9205,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.03,
          "after": 0.0391,
          "delta": 0.0091,
          "percent_delta": 0.3033,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.359,
          "after": 0.3732,
          "delta": 0.0142,
          "percent_delta": 0.0396,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.536,
          "after": 0.5549,
          "delta": 0.0189,
          "percent_delta": 0.0353,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.13,
          "after": 0.1942,
          "delta": 0.0642,
          "percent_delta": 0.4938,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.358,
          "after": 0.3601,
          "delta": 0.0021,
          "percent_delta": 0.0059,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.786,
          "after": 1.6089,
          "delta": -0.1771,
          "percent_delta": -0.0992,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 4,
        "deboosted_metrics": 2,
        "better_metrics": 5,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.19,
          "after": 0.3649,
          "delta": 0.1749,
          "percent_delta": 0.9205,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.786,
          "after": 1.6089,
          "delta": -0.1771,
          "percent_delta": -0.0992,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 7,
        "season": 7
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0247,
        "predicted_3B": 0.0019,
        "predicted_AB": 2.6543,
        "predicted_AVG": 0.1302,
        "predicted_BB": 0.8412,
        "predicted_H": 0.3455,
        "predicted_HBP": 0.139,
        "predicted_HR": 0.0371,
        "predicted_OBP": 0.3395,
        "predicted_R": 0.5046,
        "predicted_RBI": 0.1766,
        "predicted_SLG": 0.1828,
        "predicted_SO": 1.6335
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0247,
          "after": 0.0247,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0019,
          "after": 0.0019,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.6543,
          "after": 2.6543,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2918,
          "after": 0.1302,
          "delta": -0.1616,
          "percent_delta": -0.5538,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.8543,
          "after": 0.8412,
          "delta": -0.0131,
          "percent_delta": -0.0153,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.3649,
          "after": 0.3455,
          "delta": -0.0194,
          "percent_delta": -0.0532,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.139,
          "after": 0.139,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0391,
          "after": 0.0371,
          "delta": -0.002,
          "percent_delta": -0.0512,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3732,
          "after": 0.3395,
          "delta": -0.0337,
          "percent_delta": -0.0903,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5549,
          "after": 0.5046,
          "delta": -0.0503,
          "percent_delta": -0.0906,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.1942,
          "after": 0.1766,
          "delta": -0.0176,
          "percent_delta": -0.0906,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3601,
          "after": 0.1828,
          "delta": -0.1773,
          "percent_delta": -0.4924,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.6089,
          "after": 1.6335,
          "delta": 0.0246,
          "percent_delta": 0.0153,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 0,
        "deboosted_metrics": 4,
        "better_metrics": 0,
        "worse_metrics": 4,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3601,
          "after": 0.1828,
          "delta": -0.1773,
          "percent_delta": -0.4924,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.65), rates preserved: AVG=0.130 HR/AB=0.014",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0247,
          "after": 0.0,
          "delta": -0.0247,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0019,
          "after": 0.0,
          "delta": -0.0019,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.6543,
          "after": 3.0,
          "delta": 0.3457,
          "percent_delta": 0.1302,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.8412,
          "after": 1.0,
          "delta": 0.1588,
          "percent_delta": 0.1888,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.3455,
          "after": 0.0,
          "delta": -0.3455,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.139,
          "after": 0.0,
          "delta": -0.139,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0371,
          "after": 0.0,
          "delta": -0.0371,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.1766,
          "after": 0.0,
          "delta": -0.1766,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.6335,
          "after": 2.0,
          "delta": 0.3665,
          "percent_delta": 0.2244,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 3,
        "deboosted_metrics": 3,
        "better_metrics": 2,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.6335,
          "after": 2.0,
          "delta": 0.3665,
          "percent_delta": 0.2244,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 0.3455,
          "after": 0.0,
          "delta": -0.3455,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5046,
          "after": 1.0,
          "delta": 0.4954,
          "percent_delta": 0.9818,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.5,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1302,
          "after": 0.333,
          "delta": 0.2028,
          "percent_delta": 1.5576,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3395,
          "after": 0.5,
          "delta": 0.1605,
          "percent_delta": 0.4728,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.1828,
          "after": 0.333,
          "delta": 0.1502,
          "percent_delta": 0.8217,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1302,
          "after": 0.333,
          "delta": 0.2028,
          "percent_delta": 1.5576,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 1.0,
          "delta": -1.0,
          "percent_delta": -0.5,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 1,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.1302,
        "predicted_BB": 0.0,
        "predicted_CF": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3395,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.1828,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1302,
          "delta": -0.2028,
          "percent_delta": -0.6091,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.5,
          "after": 0.3395,
          "delta": -0.1605,
          "percent_delta": -0.321,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.1828,
          "delta": -0.1502,
          "percent_delta": -0.451,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1302,
          "delta": -0.2028,
          "percent_delta": -0.6091,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.5,
        "after": 4.0,
        "delta": 1.5,
        "percent_delta": 0.6,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.3,
        "after": 0.1302,
        "delta": -0.1698,
        "percent_delta": -0.566,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.893,
        "after": 0.0,
        "delta": -0.893,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.19,
        "after": 0.0,
        "delta": -0.19,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.03,
        "after": 0.0,
        "delta": -0.03,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_OBP",
        "before": 0.359,
        "after": 0.3395,
        "delta": -0.0195,
        "percent_delta": -0.0543,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.536,
        "after": 0.0,
        "delta": -0.536,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.13,
        "after": 0.0,
        "delta": -0.13,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.358,
        "after": 0.1828,
        "delta": -0.1752,
        "percent_delta": -0.4894,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.786,
        "after": 1.0,
        "delta": -0.786,
        "percent_delta": -0.4401,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 1,
      "deboosted_metrics": 8,
      "better_metrics": 2,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 2.5,
        "after": 4.0,
        "delta": 1.5,
        "percent_delta": 0.6,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_BB",
        "before": 0.893,
        "after": 0.0,
        "delta": -0.893,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.000-
predicted_3B0.000-
predicted_AB2.500-
predicted_AVG0.300-
predicted_BB0.893-
predicted_H0.190-
predicted_HR0.030-
predicted_OBP0.359-
predicted_R0.536-
predicted_RBI0.130-
predicted_SLG0.358-
predicted_SO1.786-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.0250.025
predicted_3B0.0020.002
predicted_AB2.6540.154
predicted_AVG0.292-0.008
predicted_BB0.854-0.039
predicted_H0.3650.175
predicted_HBP0.139-
predicted_HR0.0390.009
predicted_OBP0.3730.014
predicted_R0.5550.019
predicted_RBI0.1940.064
predicted_SLG0.3600.002
predicted_SO1.609-0.177
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0250.000
predicted_3B0.0020.000
predicted_AB2.6540.000
predicted_AVG0.130-0.162
predicted_BB0.841-0.013
predicted_H0.345-0.019
predicted_HBP0.1390.000
predicted_HR0.037-0.002
predicted_OBP0.340-0.034
predicted_R0.505-0.050
predicted_RBI0.177-0.018
predicted_SLG0.183-0.177
predicted_SO1.6330.025
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.65), rates preserved: AVG=0.130 HR/AB=0.014

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB1.000-
H0.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO2.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0000.000
CS0.000-
H1.0001.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO2.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.025
predicted_3B0.000-0.002
predicted_AB3.0000.346
predicted_AVG0.3330.203
predicted_BB1.0000.159
predicted_H1.0000.655
predicted_HR0.000-0.037
predicted_OBP0.5000.160
predicted_R1.0000.495
predicted_RBI0.000-0.177
predicted_SLG0.3330.150
predicted_SO2.0000.367
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.000-1.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 7
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-9.0003.0000.0000.0000.0001.0003.0005.0005.0000.33330.60000.33330.33330.00000.11110.55560.5556
last_100.207-14.0003.0000.0000.0000.0001.0003.0005.00010.0000.21430.45000.21430.21430.00000.07140.35710.7143
season0.607-14.0003.0000.0000.0000.0001.0003.0005.00010.0000.21430.45000.21430.21430.00000.07140.35710.7143
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0900
predicted_3B0.0070
predicted_AB3.0620
predicted_AVG0.2700
predicted_BB0.7520
predicted_H0.8270
predicted_HBP0.1390
predicted_HR0.0630
predicted_OBP0.4109
predicted_R0.6050
predicted_RBI0.3640
predicted_SLG0.3656
predicted_SO1.1410
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.00000.09000.0247model_form_blend
predicted_3B0.00000.00700.0019model_form_blend
predicted_AB2.50003.06202.6543model_form_blend
predicted_AVG0.30000.27000.2918model_form_blend
predicted_BB0.89300.75200.8543model_form_blend
predicted_H0.19000.82700.3649model_form_blend
predicted_HBP-0.13900.1390form_only
predicted_HR0.03000.06300.0391model_form_blend
predicted_OBP0.35900.41090.3732model_form_blend
predicted_R0.53600.60500.5549model_form_blend
predicted_RBI0.13000.36400.1942model_form_blend
predicted_SLG0.35800.36560.3601model_form_blend
predicted_SO1.78601.14101.6089model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date9
Season rows before report date9
Report year2026
Profile rows used7
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.214

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB2
Hitting_AVG0.0
Hitting_BB1
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB0
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedCF-RF
gameID20260616_CLE@MIL
game_typefull
mlbID656413
playerID656413
playerNameStuart Fairchild
posRF
startedTrue
startingPositionCF
teamCLE
teamID8
game_date2026-06-16
sl_k_percent47.6
sl_bb_percent28.6
sl_woba0.363
sl_xwoba0.32
sl_xba0.109
sl_xslg0.187
sl_sweet_spot_percent0.0
sl_barrel_batted_rate0.0
sl_hard_hit_percent50.0
sl_exit_velocity_avg96.0
sl_launch_angle_avg14.0
sl_whiff_percent66.7
sl_swing_percent42.4
Austin Hedges (595978) · BATTER · C · Team CLE
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 94
All-history rows before 20260618: 94
System season_avg: 0.2710
Data season_avg (2026 season-to-date): 0.2615
Diff (system - data): 0.0095
System opponent_avg: 0.2710

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1880.0000.000Hitting_2B0.2130.000-0.2130.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.0003.0003.000Hitting_AB3.0113.000-0.0110.000
predicted_AVG0.2860.3330.333Hitting_AVG0.2610.3330.0720.000
predicted_BB0.3120.0000.000Hitting_BB0.3300.000-0.3300.000
predicted_CS-0.0000.000BaseRunning_CS0.0430.000-0.0430.000
predicted_H0.6901.0001.000Hitting_H0.7871.0000.2130.000
predicted_HR0.0600.0000.000Hitting_HR0.0530.000-0.0530.000
predicted_OBP0.3380.3330.333Hitting_OBP0.3300.3330.0030.000
predicted_R0.3751.0000.000Hitting_R0.5210.0000.4791.000
predicted_RBI0.3501.0000.000Hitting_RBI0.2340.0000.7661.000
predicted_SLG0.3940.3330.333Hitting_SLG0.3850.333-0.0520.000
predicted_SO0.5621.0001.000Hitting_SO0.5850.0000.4151.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics4
Deboosted Metrics6
Better Metrics3
Worse Metrics7
Biggest Boostpredicted_RBI: 0.3500 -> 1.0000 (boost 0.6500, better)
Biggest Deboostpredicted_BB: 0.3120 -> 0.0000 (deboost -0.3120, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend44040predicted_H: 0.6900 -> 0.7988 (boost 0.1088, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_AVG: 0.2910 -> 0.2442 (deboost -0.0468, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62415predicted_SO: 0.5550 -> 1.0000 (boost 0.4450, worse)predicted_RBI: 0.3397 -> 0.0000 (deboost -0.3397, worse)AB rounded to 3 (raw=3.10), rates preserved: AVG=0.244 HR/AB=0.016
5consistency_constraints10101-predicted_R: 0.3144 -> 0.0000 (deboost -0.3144, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2442 -> 0.3330 (boost 0.0888, better)predicted_SLG: 0.3583 -> 0.3330 (deboost -0.0253, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference22020predicted_R: 0.0000 -> 1.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.3583 (boost 0.0253, better)predicted_AVG: 0.3330 -> 0.2442 (deboost -0.0888, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "595978",
  "player_name": "Austin Hedges",
  "position": "C",
  "team": "CLE",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.188,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.286,
        "predicted_BB": 0.312,
        "predicted_H": 0.69,
        "predicted_HR": 0.06,
        "predicted_OBP": 0.338,
        "predicted_R": 0.375,
        "predicted_RBI": 0.35,
        "predicted_SLG": 0.394,
        "predicted_SO": 0.562
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2023,
        "predicted_3B": 0.0012,
        "predicted_AB": 3.0973,
        "predicted_AVG": 0.291,
        "predicted_BB": 0.2861,
        "predicted_H": 0.7988,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.0523,
        "predicted_OBP": 0.3425,
        "predicted_R": 0.3457,
        "predicted_RBI": 0.3735,
        "predicted_SLG": 0.399,
        "predicted_SO": 0.5466
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.188,
          "after": 0.2023,
          "delta": 0.0143,
          "percent_delta": 0.0761,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0012,
          "delta": 0.0012,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0973,
          "delta": 0.0973,
          "percent_delta": 0.0324,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.286,
          "after": 0.291,
          "delta": 0.005,
          "percent_delta": 0.0175,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.312,
          "after": 0.2861,
          "delta": -0.0259,
          "percent_delta": -0.083,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.69,
          "after": 0.7988,
          "delta": 0.1088,
          "percent_delta": 0.1577,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.06,
          "after": 0.0523,
          "delta": -0.0077,
          "percent_delta": -0.1283,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.338,
          "after": 0.3425,
          "delta": 0.0045,
          "percent_delta": 0.0133,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.375,
          "after": 0.3457,
          "delta": -0.0293,
          "percent_delta": -0.0781,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.35,
          "after": 0.3735,
          "delta": 0.0235,
          "percent_delta": 0.0671,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.394,
          "after": 0.399,
          "delta": 0.005,
          "percent_delta": 0.0127,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.562,
          "after": 0.5466,
          "delta": -0.0154,
          "percent_delta": -0.0274,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 4,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.69,
          "after": 0.7988,
          "delta": 0.1088,
          "percent_delta": 0.1577,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 32
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2023,
        "predicted_3B": 0.0012,
        "predicted_AB": 3.0973,
        "predicted_AVG": 0.2442,
        "predicted_BB": 0.2817,
        "predicted_H": 0.7563,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.0496,
        "predicted_OBP": 0.3072,
        "predicted_R": 0.3144,
        "predicted_RBI": 0.3397,
        "predicted_SLG": 0.3583,
        "predicted_SO": 0.555
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2023,
          "after": 0.2023,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0012,
          "after": 0.0012,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0973,
          "after": 3.0973,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.291,
          "after": 0.2442,
          "delta": -0.0468,
          "percent_delta": -0.1608,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2861,
          "after": 0.2817,
          "delta": -0.0044,
          "percent_delta": -0.0154,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7988,
          "after": 0.7563,
          "delta": -0.0425,
          "percent_delta": -0.0532,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.006,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0523,
          "after": 0.0496,
          "delta": -0.0027,
          "percent_delta": -0.0516,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3425,
          "after": 0.3072,
          "delta": -0.0353,
          "percent_delta": -0.1031,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3457,
          "after": 0.3144,
          "delta": -0.0313,
          "percent_delta": -0.0905,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3735,
          "after": 0.3397,
          "delta": -0.0338,
          "percent_delta": -0.0905,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.399,
          "after": 0.3583,
          "delta": -0.0407,
          "percent_delta": -0.102,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5466,
          "after": 0.555,
          "delta": 0.0084,
          "percent_delta": 0.0154,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.291,
          "after": 0.2442,
          "delta": -0.0468,
          "percent_delta": -0.1608,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.10), rates preserved: AVG=0.244 HR/AB=0.016",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2023,
          "after": 0.0,
          "delta": -0.2023,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0012,
          "after": 0.0,
          "delta": -0.0012,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0973,
          "after": 3.0,
          "delta": -0.0973,
          "percent_delta": -0.0314,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2817,
          "after": 0.0,
          "delta": -0.2817,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7563,
          "after": 1.0,
          "delta": 0.2437,
          "percent_delta": 0.3222,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.0,
          "delta": -0.006,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0496,
          "after": 0.0,
          "delta": -0.0496,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3397,
          "after": 0.0,
          "delta": -0.3397,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.555,
          "after": 1.0,
          "delta": 0.445,
          "percent_delta": 0.8018,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.555,
          "after": 1.0,
          "delta": 0.445,
          "percent_delta": 0.8018,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3397,
          "after": 0.0,
          "delta": -0.3397,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3144,
          "after": 0.0,
          "delta": -0.3144,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3144,
          "after": 0.0,
          "delta": -0.3144,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2442,
          "after": 0.333,
          "delta": 0.0888,
          "percent_delta": 0.3636,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3072,
          "after": 0.333,
          "delta": 0.0258,
          "percent_delta": 0.084,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3583,
          "after": 0.333,
          "delta": -0.0253,
          "percent_delta": -0.0706,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2442,
          "after": 0.333,
          "delta": 0.0888,
          "percent_delta": 0.3636,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3583,
          "after": 0.333,
          "delta": -0.0253,
          "percent_delta": -0.0706,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2442,
        "predicted_BB": 0.0,
        "predicted_C": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3072,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3583,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2442,
          "delta": -0.0888,
          "percent_delta": -0.2667,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3072,
          "delta": -0.0258,
          "percent_delta": -0.0775,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3583,
          "delta": 0.0253,
          "percent_delta": 0.0761,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3583,
          "delta": 0.0253,
          "percent_delta": 0.0761,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2442,
          "delta": -0.0888,
          "percent_delta": -0.2667,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.188,
        "after": 0.0,
        "delta": -0.188,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.0,
        "after": 3.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AVG",
        "before": 0.286,
        "after": 0.2442,
        "delta": -0.0418,
        "percent_delta": -0.1462,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.312,
        "after": 0.0,
        "delta": -0.312,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.69,
        "after": 1.0,
        "delta": 0.31,
        "percent_delta": 0.4493,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.06,
        "after": 0.0,
        "delta": -0.06,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.338,
        "after": 0.3072,
        "delta": -0.0308,
        "percent_delta": -0.0911,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.375,
        "after": 1.0,
        "delta": 0.625,
        "percent_delta": 1.6667,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.35,
        "after": 1.0,
        "delta": 0.65,
        "percent_delta": 1.8571,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.394,
        "after": 0.3583,
        "delta": -0.0357,
        "percent_delta": -0.0906,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.562,
        "after": 1.0,
        "delta": 0.438,
        "percent_delta": 0.7794,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 4,
      "deboosted_metrics": 6,
      "better_metrics": 3,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_RBI",
        "before": 0.35,
        "after": 1.0,
        "delta": 0.65,
        "percent_delta": 1.8571,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_BB",
        "before": 0.312,
        "after": 0.0,
        "delta": -0.312,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.188-
predicted_3B0.000-
predicted_AB3.000-
predicted_AVG0.286-
predicted_BB0.312-
predicted_H0.690-
predicted_HR0.060-
predicted_OBP0.338-
predicted_R0.375-
predicted_RBI0.350-
predicted_SLG0.394-
predicted_SO0.562-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2020.014
predicted_3B0.0010.001
predicted_AB3.0970.097
predicted_AVG0.2910.005
predicted_BB0.286-0.026
predicted_H0.7990.109
predicted_HBP0.006-
predicted_HR0.052-0.008
predicted_OBP0.3430.005
predicted_R0.346-0.029
predicted_RBI0.3730.024
predicted_SLG0.3990.005
predicted_SO0.547-0.015
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2020.000
predicted_3B0.0010.000
predicted_AB3.0970.000
predicted_AVG0.244-0.047
predicted_BB0.282-0.004
predicted_H0.756-0.042
predicted_HBP0.0060.000
predicted_HR0.050-0.003
predicted_OBP0.307-0.035
predicted_R0.314-0.031
predicted_RBI0.340-0.034
predicted_SLG0.358-0.041
predicted_SO0.5550.008
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.10), rates preserved: AVG=0.244 HR/AB=0.016

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.202
predicted_3B0.000-0.001
predicted_AB3.000-0.097
predicted_AVG0.3330.089
predicted_BB0.000-0.282
predicted_H1.0000.244
predicted_HR0.000-0.050
predicted_OBP0.3330.026
predicted_R0.000-0.314
predicted_RBI0.000-0.340
predicted_SLG0.333-0.025
predicted_SO1.0000.445
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA3.000-
R1.0001.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 32
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-16.0007.0002.0000.0000.0003.0000.0000.0001.0000.43750.43750.56250.43750.00000.18750.00000.0625
last_100.2010-32.00010.0002.0000.0000.0005.0001.0002.0003.0000.31250.35290.37500.31250.00000.15620.06250.0938
season0.6032-96.00026.0006.0000.0001.0009.00012.00010.00018.0000.27080.33640.36460.27080.01040.09380.10420.1875
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2250
predicted_3B0.0030
predicted_AB3.2520
predicted_AVG0.2989
predicted_BB0.2450
predicted_H0.9720
predicted_HBP0.0060
predicted_HR0.0400
predicted_OBP0.3497
predicted_R0.2990
predicted_RBI0.4110
predicted_SLG0.4070
predicted_SO0.5220
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.18800.22500.2023model_form_blend
predicted_3B0.00000.00300.0012model_form_blend
predicted_AB3.00003.25203.0973model_form_blend
predicted_AVG0.28600.29890.2910model_form_blend
predicted_BB0.31200.24500.2861model_form_blend
predicted_H0.69000.97200.7988model_form_blend
predicted_HBP-0.00600.0060form_only
predicted_HR0.06000.04000.0523model_form_blend
predicted_OBP0.33800.34970.3425model_form_blend
predicted_R0.37500.29900.3457model_form_blend
predicted_RBI0.35000.41100.3735model_form_blend
predicted_SLG0.39400.40700.3990model_form_blend
predicted_SO0.56200.52200.5466model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date94
Season rows before report date94
Report year2026
Profile rows used32
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA3
AB3
H1
2B0
3B0
HR0
R1
RBI1
BB0
SO1
SF0
HBP0
season_avg0.271

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB0
Hitting_GIDP1
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder9
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedC
gameID20260616_CLE@MIL
game_typefull
mlbID595978
playerID595978
playerNameAustin Hedges
posC
startedTrue
startingPositionC
teamCLE
teamID8
game_date2026-06-16
sl_k_percent16.4
sl_bb_percent9.1
sl_woba0.314
sl_xwoba0.286
sl_xba0.246
sl_xslg0.32
sl_sweet_spot_percent28.0
sl_barrel_batted_rate2.4
sl_hard_hit_percent30.5
sl_exit_velocity_avg86.0
sl_launch_angle_avg6.4
sl_whiff_percent22.8
sl_swing_percent45.1
Parker Messick (800048) · PITCHER · Starter · Team CLE
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 14
All-history rows before 20260618: 14

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB1.7863.000-0.786-2.000
predicted_ER2.0002.0002.000Pitching_ER1.7144.0000.286-2.000
predicted_H2.0002.0002.000Pitching_H4.5005.000-2.500-3.000
predicted_IP6.0006.0006.000Pitching_InningsPitched5.5295.2000.4710.800
predicted_SO8.0008.0008.000Pitching_SO5.8574.0002.1434.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2pitcher_quality_guardrail00000--Elite/strong starter guardrail capped a noisy simulation draw using season workload, ERA/WHIP, and weighted recent form.
3current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "800048",
  "player_name": "Parker Messick",
  "position": "Starter",
  "team": "CLE",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 2.0,
        "predicted_H": 2.0,
        "predicted_HR": 1.0,
        "predicted_IP": 6.0,
        "predicted_SO": 8.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "pitcher_quality_guardrail",
      "description": "Elite/strong starter guardrail capped a noisy simulation draw using season workload, ERA/WHIP, and weighted recent form.",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 2.0,
        "predicted_H": 2.0,
        "predicted_HR": 1.0,
        "predicted_IP": 6.0,
        "predicted_SO": 8.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 6.0,
          "after": 6.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 8.0,
          "after": 8.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 3,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 2.0,
        "predicted_H": 2.0,
        "predicted_HR": 1.0,
        "predicted_IP": 6.0,
        "predicted_R": 2.0,
        "predicted_SO": 8.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 6.0,
          "after": 6.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 8.0,
          "after": 8.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 6.0,
        "after": 6.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 8.0,
        "after": 8.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER2.000-
predicted_H2.000-
predicted_HR1.000-
predicted_IP6.000-
predicted_SO8.000-
2. pitcher_quality_guardrail

Elite/strong starter guardrail capped a noisy simulation draw using season workload, ERA/WHIP, and weighted recent form.

MetricValueDelta vs Prev Step
predicted_BB1.0000.000
predicted_ER2.0000.000
predicted_H2.0000.000
predicted_HR1.0000.000
predicted_IP6.0000.000
predicted_SO8.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 14
Reference playing time: 6.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.45527.00010.00024.00011.00024.0003.0003.33331.29630.37040.88890.40740.88890.1111
last_100.351055.00021.00050.00018.00057.0007.0003.43641.23640.38180.90910.32731.03640.1273
season0.201480.20024.00063.00025.00082.0008.0002.67771.09090.29750.78100.30991.01650.0992
Weighted Prediction From Real Data
MetricValue
predicted_BB2.0050
predicted_ER2.2060
predicted_ERA3.5725
predicted_H5.0050
predicted_HR0.6820
predicted_IP5.2000
predicted_SO5.3280
predicted_WHIP1.2614
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00002.00501.5415model_form_blend
predicted_ER2.00002.20602.1110model_form_blend
predicted_ERA-3.57253.5725form_only
predicted_H2.00005.00503.6191model_form_blend
predicted_HR1.00000.68200.8287model_form_blend
predicted_IP6.00005.20005.2000model_form_blend
predicted_SO8.00005.32806.5603model_form_blend
predicted_WHIP-1.26141.2614form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date14
Season rows before report date14
Report year2026
Profile rows used14
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP6.0
H2
R2
ER2
BB1
SO8
HR1
BF21
Pitches95

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E1
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB3
Pitching_Balk0
Pitching_Batters Faced25
Pitching_ER4
Pitching_ERA2.68
Pitching_Flyouts3
Pitching_Groundouts8
Pitching_H5
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched5.2
Pitching_Pitches100
Pitching_R5
Pitching_SO4
Pitching_Strikes63
Pitching_Wild Pitch0
Pitching_decisionL
Pitching_pitchingOrder1
allPositionsPlayedP
gameID20260610_NYY@CLE
game_typefull
mlbID800048
playerID800048
playerNameParker Messick
posP
startedTrue
startingPositionP
teamCLE
teamID8
game_date2026-06-10
sl_k_percent25.6
sl_bb_percent7.8
sl_woba0.28
sl_xwoba0.288
sl_sweet_spot_percent34.9
sl_barrel_batted_rate6.1
sl_hard_hit_percent34.0
sl_whiff_percent27.1
sl_swing_percent48.8
sl_avg_best_speed76.156112308
sl_avg_hyper_speed93.526504686
Cade Smith (671922) · PITCHER · Middle Reliever · Team CLE
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 31
All-history rows before 20260618: 31

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB0.1941.0000.8060.000
predicted_ER0.0000.0000.000Pitching_ER0.2900.000-0.2900.000
predicted_H0.0000.0000.000Pitching_H0.9031.000-0.903-1.000
predicted_IP1.2001.2001.200Pitching_InningsPitched1.0161.1000.1840.100
predicted_SO0.0000.0000.000Pitching_SO1.5812.000-1.581-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_IP: 1.0000 -> 1.2000 (boost 0.2000, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final11010predicted_IP: 1.0000 -> 1.2000 (boost 0.2000, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "671922",
  "player_name": "Cade Smith",
  "position": "Middle Reliever",
  "team": "CLE",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.2,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.2,
          "delta": 0.2,
          "percent_delta": 0.2,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.2,
          "delta": 0.2,
          "percent_delta": 0.2,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.2,
        "delta": 0.2,
        "percent_delta": 0.2,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.2,
        "delta": 0.2,
        "percent_delta": 0.2,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 31
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4556.0001.0004.0001.00010.0000.0001.50000.83330.16670.66670.16671.66670.0000
last_100.351011.0002.0009.0001.00018.0000.0001.63640.90910.18180.81820.09091.63640.0000
season0.203132.2009.00028.0006.00049.0001.0002.47961.04080.27550.85710.18371.50000.0306
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2590
predicted_ER0.3550
predicted_ERA2.9471
predicted_H0.9240
predicted_HR0.0730
predicted_IP1.0000
predicted_SO1.4370
predicted_WHIP1.0911
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00000.25900.6546model_form_blend
predicted_ER0.00000.35500.1655model_form_blend
predicted_ERA-2.94712.9471form_only
predicted_H0.00000.92400.4307model_form_blend
predicted_HR0.00000.07300.0340model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00001.43700.6698model_form_blend
predicted_WHIP-1.09111.0911form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date31
Season rows before report date31
Report year2026
Profile rows used31
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.2
H0
R0
ER0
BB1
SO0
HR0
BF6
Pitches25

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder4
Hitting_substitutionOrder1
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced6
Pitching_ER0
Pitching_ERA2.48
Pitching_Flyouts0
Pitching_Groundouts2
Pitching_H1
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners1
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.1
Pitching_Pitches31
Pitching_R0
Pitching_SO2
Pitching_Strikes18
Pitching_Wild Pitch0
Pitching_decisionS
Pitching_pitchingOrder5
allPositionsPlayedP
gameID20260613_DET@CLE
game_typefull
mlbID671922
playerID671922
playerNameCade Smith
posP
startedFalse
startingPositionP
teamCLE
teamID8
game_date2026-06-13
sl_k_percent38.0
sl_bb_percent4.7
sl_woba0.255
sl_xwoba0.239
sl_sweet_spot_percent33.8
sl_barrel_batted_rate8.3
sl_hard_hit_percent44.4
sl_whiff_percent35.4
sl_swing_percent50.3
sl_avg_best_speed82.493130278
sl_avg_hyper_speed95.021417639
Hunter Gaddis (683769) · PITCHER · Middle Reliever · Team CLE
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 23
All-history rows before 20260618: 23

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.3040.000-0.3040.000
predicted_ER0.0000.0000.000Pitching_ER0.3911.000-0.391-1.000
predicted_H1.0001.0001.000Pitching_H0.9571.0000.0430.000
predicted_IP0.1000.1000.100Pitching_InningsPitched0.7431.000-0.643-0.900
predicted_SO1.0001.0001.000Pitching_SO0.6090.0000.3911.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "683769",
  "player_name": "Hunter Gaddis",
  "position": "Middle Reliever",
  "team": "CLE",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.1,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.1,
        "predicted_R": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 0.1,
          "after": 0.1,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 0.1,
        "after": 0.1,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP0.100-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 22
Reference playing time: 0.100
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.1002.0004.0001.0000.0001.0004.15381.15380.46150.92310.23080.00000.2308
last_100.35109.1002.0008.0002.0006.0001.0001.92861.07140.21430.85710.21430.64290.1071
season0.202219.2008.00020.0005.00014.0003.0003.66101.27120.40681.01700.25420.71190.1525
Weighted Prediction From Real Data
MetricValue
predicted_BB0.1910
predicted_ER0.2760
predicted_ERA3.9681
predicted_H0.5940
predicted_HR0.0980
predicted_IP0.2000
predicted_SO0.4300
predicted_WHIP1.2544
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.19100.0788model_form_blend
predicted_ER0.00000.27600.1139model_form_blend
predicted_ERA-3.96813.9681form_only
predicted_H1.00000.59400.8324model_form_blend
predicted_HR0.00000.09800.0405model_form_blend
predicted_IP0.10000.20000.1000model_form_blend
predicted_SO1.00000.43000.7647model_form_blend
predicted_WHIP-1.25441.2544form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date23
Season rows before report date23
Report year2026
Profile rows used22
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP0.1
H1
R0
ER0
BB0
SO1
HR0
BF2
Pitches16

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER1
Pitching_ERA4.12
Pitching_Flyouts0
Pitching_Groundouts2
Pitching_H1
Pitching_HBP0
Pitching_HR1
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches13
Pitching_R1
Pitching_SO0
Pitching_Strikes10
Pitching_Wild Pitch0
Pitching_decisionL
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260616_CLE@MIL
game_typefull
mlbID683769
playerID683769
playerNameHunter Gaddis
posP
startedFalse
startingPositionP
teamCLE
teamID8
game_date2026-06-16
sl_k_percent15.7
sl_bb_percent7.9
sl_woba0.324
sl_xwoba0.331
sl_sweet_spot_percent29.4
sl_barrel_batted_rate7.5
sl_hard_hit_percent29.9
sl_whiff_percent27.4
sl_swing_percent48.7
sl_avg_best_speed76.686317879
sl_avg_hyper_speed92.57500197

Home Team: MIL

Home Pitcher Deep Analysis

FieldValue
PitcherShane Drohan
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score0.2127
ESPN Rank230
Movement AvailableTrue
Primary Pitch-
Movement Score0.0486
Avg Velo90.5974
Avg Spin2516.0834
HB Inches0
IVB Inches0
Release Extension0
Pre IP5
Pre ER1
Pre H4
Pre BB3
Pre SO5
Season ERA3.5859
Season WHIP1.1719
Role Avg IP4.5000
Recent Avg IP4.5000
Last Start IP5
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "MIL",
    "games": 81,
    "wins": 49,
    "losses": 32,
    "win_pct": 0.6049,
    "runs_scored": 424.0,
    "runs_allowed": 301.0,
    "run_differential": 123.0,
    "run_differential_per_game": 1.5185,
    "avg_runs_scored": 5.2346,
    "avg_runs_allowed": 3.716,
    "offense_index": 1.1608,
    "defense_index": 1.2135,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 7,
      "losses": 3,
      "win_pct": 0.7,
      "avg_runs_scored": 7.1,
      "avg_runs_allowed": 4.4,
      "run_differential": 27.0
    },
    "available": true,
    "quality_score": 0.3444
  },
  "opponent": {
    "team": "CLE",
    "games": 82,
    "wins": 43,
    "losses": 39,
    "win_pct": 0.5244,
    "runs_scored": 340.0,
    "runs_allowed": 345.0,
    "run_differential": -5.0,
    "run_differential_per_game": -0.061,
    "avg_runs_scored": 4.1463,
    "avg_runs_allowed": 4.2073,
    "offense_index": 0.9195,
    "defense_index": 1.0718,
    "current_streak": "L3",
    "recent": {
      "games": 10,
      "wins": 3,
      "losses": 7,
      "win_pct": 0.3,
      "avg_runs_scored": 2.8,
      "avg_runs_allowed": 4.2,
      "run_differential": -14.0
    },
    "available": true,
    "quality_score": -0.0567
  },
  "edges": {
    "quality_edge": 0.4011,
    "offense_edge": 0.1608,
    "opponent_offense_edge": -0.0805,
    "defense_strength": 0.2135,
    "opponent_defense_weakness": -0.0718,
    "recent_win_pct_edge": 0.4
  },
  "player_factors": {
    "ip": 1.0257,
    "run_prevention": 0.9457,
    "strikeout": 1.0185
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "675660",
    "profile": {
      "available": true,
      "pitcher_id": "675660",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 113.0,
        "k_percent": 24.9,
        "bb_percent": 6.2,
        "woba": 0.285,
        "xwoba": 0.273,
        "sweet_spot_percent": 34.4,
        "barrel_batted_rate": 9.0,
        "hard_hit_percent": 37.7,
        "avg_best_speed": 77.19,
        "avg_hyper_speed": 93.7911,
        "whiff_percent": 29.0,
        "swing_percent": 50.3
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.5542,
        "command_and_miss": 0.4693,
        "regression_edge": 0.3429,
        "xwoba_edge": 1.2,
        "barrel_edge": -0.3778,
        "hard_hit_edge": 0.0857,
        "whiff_edge": 0.4714,
        "bb_edge": 0.75,
        "pitch_design_score": 0.0486
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "675660",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 35,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 35,
          "pitch_usage": 0.0,
          "release_speed": 90.59743564984379,
          "release_spin_rate": 2516.0834298625896,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 35,
            "pitch_usage": 0.0,
            "release_speed": 90.59743564984379,
            "release_spin_rate": 2516.0834298625896,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 90.5974,
          "release_spin_rate": 2516.0834,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": 0.0486,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": 0.3474,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.2127,
      "sample_weight": 0.452,
      "run_prevention_factor": 0.9819,
      "strikeout_factor": 1.0147,
      "walk_factor": 0.9729,
      "homer_factor": 0.9958,
      "woba_minus_xwoba": 0.012,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "675660",
        "espn_id": 4315203,
        "player_name": "Shane Drohan",
        "team": "MIL",
        "role": "pitcher",
        "espn_rank": 230,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 230,
          "gp_value": 14.0,
          "gp_rank": 279,
          "gs_value": 4.0,
          "gs_rank": 175,
          "qs_value": 1.0,
          "qs_rank": 134,
          "era_value": 3.5859,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 2.0,
          "l_rank": 185,
          "sv_value": 1.0,
          "sv_rank": 86,
          "hld_value": 2.0,
          "hld_rank": 165,
          "ip_value": 42.2,
          "ip_rank": 151,
          "h_value": 39.0,
          "h_rank": 152,
          "er_value": 17.0,
          "er_rank": 186,
          "hr_value": 3.0,
          "hr_rank": 258,
          "bb_value": 11.0,
          "bb_rank": 272,
          "k_value": 44.0,
          "k_rank": 138,
          "k_per_9_value": 9.28125,
          "k_per_9_rank": 24,
          "whip_value": 1.1718,
          "whip_rank": null,
          "war_value": 0.35,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 3.0,
        "factor": 0.9918,
        "adjusted": 3
      },
      "predicted_H": {
        "original": 5.0,
        "factor": 0.9918,
        "adjusted": 5
      },
      "predicted_BB": {
        "original": 2.0,
        "factor": 0.9878,
        "adjusted": 2
      },
      "predicted_HR": {
        "original": 1.0,
        "factor": 0.9981,
        "adjusted": 1
      },
      "predicted_SO": {
        "original": 5.0,
        "factor": 1.0066,
        "adjusted": 5
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 31.0,
    "ER": 12,
    "H": 27,
    "BB": 6,
    "SO": 35,
    "HR": 3,
    "ERA": 3.483870967741936,
    "WHIP": 1.0645161290322582,
    "K9": 10.161290322580646,
    "HR9": 0.870967741935484,
    "games_pitched": 10,
    "quality_starts": 1,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "675660",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 35,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 35,
    "pitch_usage": 0.0,
    "release_speed": 90.59743564984379,
    "release_spin_rate": 2516.0834298625896,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 35,
      "pitch_usage": 0.0,
      "release_speed": 90.59743564984379,
      "release_spin_rate": 2516.0834298625896,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 90.5974,
    "release_spin_rate": 2516.0834,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": 0.0486,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": 0.3474,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "role": "pitcher",
  "player_id": "675660",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 14,
  "reference_playing_time": 5.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 20.1,
        "ER": 11.0,
        "R": 11.0,
        "H": 20.0,
        "BB": 3.0,
        "SO": 22.0,
        "HR": 3.0,
        "BF": 82.0,
        "Pitches": 296.0
      },
      "per_game": {
        "IP": 4.0,
        "ER": 2.2,
        "R": 2.2,
        "H": 4.0,
        "BB": 0.6,
        "SO": 4.4,
        "HR": 0.6,
        "BF": 16.4,
        "Pitches": 59.2
      },
      "rates": {
        "ERA": 4.8689,
        "WHIP": 1.1311,
        "ER_per_IP": 0.54098,
        "H_per_IP": 0.98361,
        "BB_per_IP": 0.14754,
        "SO_per_IP": 1.08197,
        "HR_per_IP": 0.14754
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 31.0,
        "ER": 12.0,
        "R": 13.0,
        "H": 27.0,
        "BB": 6.0,
        "SO": 35.0,
        "HR": 3.0,
        "BF": 124.0,
        "Pitches": 454.0
      },
      "per_game": {
        "IP": 3.0,
        "ER": 1.2,
        "R": 1.3,
        "H": 2.7,
        "BB": 0.6,
        "SO": 3.5,
        "HR": 0.3,
        "BF": 12.4,
        "Pitches": 45.4
      },
      "rates": {
        "ERA": 3.4839,
        "WHIP": 1.0645,
        "ER_per_IP": 0.3871,
        "H_per_IP": 0.87097,
        "BB_per_IP": 0.19355,
        "SO_per_IP": 1.12903,
        "HR_per_IP": 0.09677
      }
    },
    "season": {
      "games": 14,
      "totals": {
        "IP": 42.2,
        "ER": 17.0,
        "R": 20.0,
        "H": 39.0,
        "BB": 11.0,
        "SO": 44.0,
        "HR": 3.0,
        "BF": 177.0,
        "Pitches": 658.0
      },
      "per_game": {
        "IP": 3.0,
        "ER": 1.2143,
        "R": 1.4286,
        "H": 2.7857,
        "BB": 0.7857,
        "SO": 3.1429,
        "HR": 0.2143,
        "BF": 12.6429,
        "Pitches": 47.0
      },
      "rates": {
        "ERA": 3.5859,
        "WHIP": 1.1719,
        "ER_per_IP": 0.39844,
        "H_per_IP": 0.91406,
        "BB_per_IP": 0.25781,
        "SO_per_IP": 1.03125,
        "HR_per_IP": 0.07031
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 4.0,
    "predicted_ER": 1.812,
    "predicted_H": 3.633,
    "predicted_BB": 0.897,
    "predicted_SO": 4.046,
    "predicted_HR": 0.473,
    "predicted_ERA": 4.2277,
    "predicted_WHIP": 1.1742
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.4612,
  "form_weight": 0.5388,
  "form_reliability": 0.7368,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 5.0,
      "form": 4.0,
      "final": 4.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 1.0,
      "form": 1.812,
      "final": 1.4375,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 4.0,
      "form": 3.633,
      "final": 3.8023,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 3.0,
      "form": 0.897,
      "final": 1.8669,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 5.0,
      "form": 4.046,
      "final": 4.486,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.473,
      "final": 0.2549,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.2277,
      "final": 4.2277,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1742,
      "final": 1.1742,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherAaron Ashby
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.4342
ESPN Rank128
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1.1000
Pre ER0
Pre H0
Pre BB0
Pre SO0
Season ERA2.8000
Season WHIP1.3333
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "MIL",
    "games": 81,
    "wins": 49,
    "losses": 32,
    "win_pct": 0.6049,
    "runs_scored": 424.0,
    "runs_allowed": 301.0,
    "run_differential": 123.0,
    "run_differential_per_game": 1.5185,
    "avg_runs_scored": 5.2346,
    "avg_runs_allowed": 3.716,
    "offense_index": 1.1608,
    "defense_index": 1.2135,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 7,
      "losses": 3,
      "win_pct": 0.7,
      "avg_runs_scored": 7.1,
      "avg_runs_allowed": 4.4,
      "run_differential": 27.0
    },
    "available": true,
    "quality_score": 0.3444
  },
  "opponent": {
    "team": "CLE",
    "games": 82,
    "wins": 43,
    "losses": 39,
    "win_pct": 0.5244,
    "runs_scored": 340.0,
    "runs_allowed": 345.0,
    "run_differential": -5.0,
    "run_differential_per_game": -0.061,
    "avg_runs_scored": 4.1463,
    "avg_runs_allowed": 4.2073,
    "offense_index": 0.9195,
    "defense_index": 1.0718,
    "current_streak": "L3",
    "recent": {
      "games": 10,
      "wins": 3,
      "losses": 7,
      "win_pct": 0.3,
      "avg_runs_scored": 2.8,
      "avg_runs_allowed": 4.2,
      "run_differential": -14.0
    },
    "available": true,
    "quality_score": -0.0567
  },
  "edges": {
    "quality_edge": 0.4011,
    "offense_edge": 0.1608,
    "opponent_offense_edge": -0.0805,
    "defense_strength": 0.2135,
    "opponent_defense_weakness": -0.0718,
    "recent_win_pct_edge": 0.4
  },
  "player_factors": {
    "ip": 1.0257,
    "run_prevention": 0.9457,
    "strikeout": 1.0185
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "676879",
    "profile": {
      "available": true,
      "pitcher_id": "676879",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 146.0,
        "k_percent": 31.6,
        "bb_percent": 11.4,
        "woba": 0.293,
        "xwoba": 0.269,
        "sweet_spot_percent": 26.9,
        "barrel_batted_rate": 4.6,
        "hard_hit_percent": 40.7,
        "avg_best_speed": 74.8716,
        "avg_hyper_speed": 94.4131,
        "whiff_percent": 33.2,
        "swing_percent": 40.8
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.8105,
        "command_and_miss": 0.85,
        "regression_edge": 0.6857,
        "xwoba_edge": 1.3143,
        "barrel_edge": 0.6,
        "hard_hit_edge": -0.3429,
        "whiff_edge": 1.0714,
        "bb_edge": -0.55,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "676879",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.4342,
      "sample_weight": 0.584,
      "run_prevention_factor": 0.9631,
      "strikeout_factor": 1.0554,
      "walk_factor": 1.0257,
      "homer_factor": 0.957,
      "woba_minus_xwoba": 0.024,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "676879",
        "espn_id": 41325,
        "player_name": "Aaron Ashby",
        "team": "MIL",
        "role": "pitcher",
        "espn_rank": 128,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 128,
          "gp_value": 33.0,
          "gp_rank": 22,
          "gs_value": 1.0,
          "gs_rank": 240,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.8,
          "era_rank": null,
          "w_value": 10.0,
          "w_rank": 1,
          "l_value": 0.0,
          "l_rank": 430,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 3.0,
          "hld_rank": 142,
          "ip_value": 45.0,
          "ip_rank": 146,
          "h_value": 38.0,
          "h_rank": 156,
          "er_value": 14.0,
          "er_rank": 225,
          "hr_value": 3.0,
          "hr_rank": 258,
          "bb_value": 22.0,
          "bb_rank": 93,
          "k_value": 61.0,
          "k_rank": 77,
          "k_per_9_value": 12.2,
          "k_per_9_rank": 14,
          "whip_value": 1.3333,
          "whip_rank": null,
          "war_value": 0.78,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9785,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9785,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.015,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9749,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 3.0,
        "factor": 1.0324,
        "adjusted": 3
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 14.0,
    "ER": 6,
    "H": 12,
    "BB": 5,
    "SO": 15,
    "HR": 2,
    "ERA": 3.857142857142857,
    "WHIP": 1.2142857142857142,
    "K9": 9.642857142857142,
    "HR9": 1.2857142857142858,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-17T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "676879",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 8.936,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.6412,
    "prior_weight": 0.3588
  },
  "role": "pitcher",
  "player_id": "676879",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 33,
  "reference_playing_time": 1.333,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 6.2,
        "ER": 4.0,
        "R": 5.0,
        "H": 6.0,
        "BB": 3.0,
        "SO": 8.0,
        "HR": 2.0,
        "BF": 30.0,
        "Pitches": 115.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.8,
        "R": 1.0,
        "H": 1.2,
        "BB": 0.6,
        "SO": 1.6,
        "HR": 0.4,
        "BF": 6.0,
        "Pitches": 23.0
      },
      "rates": {
        "ERA": 5.4,
        "WHIP": 1.35,
        "ER_per_IP": 0.6,
        "H_per_IP": 0.9,
        "BB_per_IP": 0.45,
        "SO_per_IP": 1.2,
        "HR_per_IP": 0.3
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 14.0,
        "ER": 6.0,
        "R": 8.0,
        "H": 12.0,
        "BB": 5.0,
        "SO": 15.0,
        "HR": 2.0,
        "BF": 59.0,
        "Pitches": 228.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.6,
        "R": 0.8,
        "H": 1.2,
        "BB": 0.5,
        "SO": 1.5,
        "HR": 0.2,
        "BF": 5.9,
        "Pitches": 22.8
      },
      "rates": {
        "ERA": 3.8571,
        "WHIP": 1.2143,
        "ER_per_IP": 0.42857,
        "H_per_IP": 0.85714,
        "BB_per_IP": 0.35714,
        "SO_per_IP": 1.07143,
        "HR_per_IP": 0.14286
      }
    },
    "season": {
      "games": 33,
      "totals": {
        "IP": 45.0,
        "ER": 14.0,
        "R": 18.0,
        "H": 38.0,
        "BB": 22.0,
        "SO": 61.0,
        "HR": 3.0,
        "BF": 193.0,
        "Pitches": 767.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.4242,
        "R": 0.5455,
        "H": 1.1515,
        "BB": 0.6667,
        "SO": 1.8485,
        "HR": 0.0909,
        "BF": 5.8485,
        "Pitches": 23.2424
      },
      "rates": {
        "ERA": 2.8,
        "WHIP": 1.3333,
        "ER_per_IP": 0.31111,
        "H_per_IP": 0.84444,
        "BB_per_IP": 0.48889,
        "SO_per_IP": 1.35556,
        "HR_per_IP": 0.06667
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.1,
    "predicted_ER": 0.652,
    "predicted_H": 1.213,
    "predicted_BB": 0.537,
    "predicted_SO": 1.463,
    "predicted_HR": 0.239,
    "predicted_ERA": 4.4004,
    "predicted_WHIP": 1.3128
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5016,
  "form_weight": 0.4984,
  "form_reliability": 0.6412,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 8.936,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.6412,
    "prior_weight": 0.3588
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.1,
      "form": 1.1,
      "final": 1.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.652,
      "final": 0.325,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 1.213,
      "final": 0.6046,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.537,
      "final": 0.2676,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 1.463,
      "final": 0.7292,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.239,
      "final": 0.1191,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.4004,
      "final": 4.4004,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.3128,
      "final": 1.3128,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherAbner Uribe
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.2799
ESPN Rank207
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H0
Pre BB0
Pre SO2
Season ERA3.5065
Season WHIP1.2078
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "MIL",
    "games": 81,
    "wins": 49,
    "losses": 32,
    "win_pct": 0.6049,
    "runs_scored": 424.0,
    "runs_allowed": 301.0,
    "run_differential": 123.0,
    "run_differential_per_game": 1.5185,
    "avg_runs_scored": 5.2346,
    "avg_runs_allowed": 3.716,
    "offense_index": 1.1608,
    "defense_index": 1.2135,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 7,
      "losses": 3,
      "win_pct": 0.7,
      "avg_runs_scored": 7.1,
      "avg_runs_allowed": 4.4,
      "run_differential": 27.0
    },
    "available": true,
    "quality_score": 0.3444
  },
  "opponent": {
    "team": "CLE",
    "games": 82,
    "wins": 43,
    "losses": 39,
    "win_pct": 0.5244,
    "runs_scored": 340.0,
    "runs_allowed": 345.0,
    "run_differential": -5.0,
    "run_differential_per_game": -0.061,
    "avg_runs_scored": 4.1463,
    "avg_runs_allowed": 4.2073,
    "offense_index": 0.9195,
    "defense_index": 1.0718,
    "current_streak": "L3",
    "recent": {
      "games": 10,
      "wins": 3,
      "losses": 7,
      "win_pct": 0.3,
      "avg_runs_scored": 2.8,
      "avg_runs_allowed": 4.2,
      "run_differential": -14.0
    },
    "available": true,
    "quality_score": -0.0567
  },
  "edges": {
    "quality_edge": 0.4011,
    "offense_edge": 0.1608,
    "opponent_offense_edge": -0.0805,
    "defense_strength": 0.2135,
    "opponent_defense_weakness": -0.0718,
    "recent_win_pct_edge": 0.4
  },
  "player_factors": {
    "ip": 1.0257,
    "run_prevention": 0.9457,
    "strikeout": 1.0185
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "682842",
    "profile": {
      "available": true,
      "pitcher_id": "682842",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 80.0,
        "k_percent": 25.0,
        "bb_percent": 10.2,
        "woba": 0.259,
        "xwoba": 0.266,
        "sweet_spot_percent": 30.0,
        "barrel_batted_rate": 2.9,
        "hard_hit_percent": 31.4,
        "avg_best_speed": 78.0145,
        "avg_hyper_speed": 92.7929,
        "whiff_percent": 25.1,
        "swing_percent": 42.8
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 1.1088,
        "command_and_miss": 0.0807,
        "regression_edge": -0.2,
        "xwoba_edge": 1.4,
        "barrel_edge": 0.9778,
        "hard_hit_edge": 0.9857,
        "whiff_edge": -0.0857,
        "bb_edge": -0.25,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "682842",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.2799,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9762,
      "strikeout_factor": 1.0049,
      "walk_factor": 1.009,
      "homer_factor": 0.9282,
      "woba_minus_xwoba": -0.007,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "682842",
        "espn_id": 4917865,
        "player_name": "Abner Uribe",
        "team": "MIL",
        "role": "pitcher",
        "espn_rank": 207,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 207,
          "gp_value": 27.0,
          "gp_rank": 111,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 3.5064,
          "era_rank": null,
          "w_value": 4.0,
          "w_rank": 65,
          "l_value": 2.0,
          "l_rank": 185,
          "sv_value": 5.0,
          "sv_rank": 27,
          "hld_value": 8.0,
          "hld_rank": 41,
          "ip_value": 25.2,
          "ip_rank": 316,
          "h_value": 20.0,
          "h_rank": 330,
          "er_value": 10.0,
          "er_rank": 324,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 11.0,
          "bb_rank": 272,
          "k_value": 27.0,
          "k_rank": 277,
          "k_per_9_value": 9.467532,
          "k_per_9_rank": 23,
          "whip_value": 1.2077,
          "whip_rank": null,
          "war_value": 0.42,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9893,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9893,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.004,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9677,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0022,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.1,
    "ER": 4,
    "H": 9,
    "BB": 6,
    "SO": 11,
    "HR": 1,
    "ERA": 3.483870967741936,
    "WHIP": 1.4516129032258067,
    "K9": 9.580645161290324,
    "HR9": 0.870967741935484,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "682842",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.097,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5048,
    "prior_weight": 0.4952
  },
  "role": "pitcher",
  "player_id": "682842",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 27,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.1,
        "ER": 1.0,
        "R": 1.0,
        "H": 4.0,
        "BB": 2.0,
        "SO": 5.0,
        "HR": 0.0,
        "BF": 22.0,
        "Pitches": 81.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.8,
        "BB": 0.4,
        "SO": 1.0,
        "HR": 0.0,
        "BF": 4.4,
        "Pitches": 16.2
      },
      "rates": {
        "ERA": 1.6875,
        "WHIP": 1.125,
        "ER_per_IP": 0.1875,
        "H_per_IP": 0.75,
        "BB_per_IP": 0.375,
        "SO_per_IP": 0.9375,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.1,
        "ER": 4.0,
        "R": 4.0,
        "H": 9.0,
        "BB": 6.0,
        "SO": 11.0,
        "HR": 1.0,
        "BF": 46.0,
        "Pitches": 167.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4,
        "R": 0.4,
        "H": 0.9,
        "BB": 0.6,
        "SO": 1.1,
        "HR": 0.1,
        "BF": 4.6,
        "Pitches": 16.7
      },
      "rates": {
        "ERA": 3.4839,
        "WHIP": 1.4516,
        "ER_per_IP": 0.3871,
        "H_per_IP": 0.87097,
        "BB_per_IP": 0.58065,
        "SO_per_IP": 1.06452,
        "HR_per_IP": 0.09677
      }
    },
    "season": {
      "games": 27,
      "totals": {
        "IP": 25.2,
        "ER": 10.0,
        "R": 10.0,
        "H": 20.0,
        "BB": 11.0,
        "SO": 27.0,
        "HR": 2.0,
        "BF": 108.0,
        "Pitches": 418.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3704,
        "R": 0.3704,
        "H": 0.7407,
        "BB": 0.4074,
        "SO": 1.0,
        "HR": 0.0741,
        "BF": 4.0,
        "Pitches": 15.4815
      },
      "rates": {
        "ERA": 3.5065,
        "WHIP": 1.2078,
        "ER_per_IP": 0.38961,
        "H_per_IP": 0.77922,
        "BB_per_IP": 0.42857,
        "SO_per_IP": 1.05195,
        "HR_per_IP": 0.07792
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.398,
    "predicted_H": 0.885,
    "predicted_BB": 0.411,
    "predicted_SO": 0.972,
    "predicted_HR": 0.097,
    "predicted_ERA": 3.5854,
    "predicted_WHIP": 1.2961
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5592,
  "form_weight": 0.4408,
  "form_reliability": 0.5048,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.097,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5048,
    "prior_weight": 0.4952
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.398,
      "final": 0.1754,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.885,
      "final": 0.3901,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.411,
      "final": 0.1812,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 2.0,
      "form": 0.972,
      "final": 1.5469,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.097,
      "final": 0.0428,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.5854,
      "final": 3.5854,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2961,
      "final": 1.2961,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherTrevor Megill
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.4163
ESPN Rank293
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H0
Pre BB0
Pre SO2
Season ERA2.7692
Season WHIP1.0385
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "MIL",
    "games": 81,
    "wins": 49,
    "losses": 32,
    "win_pct": 0.6049,
    "runs_scored": 424.0,
    "runs_allowed": 301.0,
    "run_differential": 123.0,
    "run_differential_per_game": 1.5185,
    "avg_runs_scored": 5.2346,
    "avg_runs_allowed": 3.716,
    "offense_index": 1.1608,
    "defense_index": 1.2135,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 7,
      "losses": 3,
      "win_pct": 0.7,
      "avg_runs_scored": 7.1,
      "avg_runs_allowed": 4.4,
      "run_differential": 27.0
    },
    "available": true,
    "quality_score": 0.3444
  },
  "opponent": {
    "team": "CLE",
    "games": 82,
    "wins": 43,
    "losses": 39,
    "win_pct": 0.5244,
    "runs_scored": 340.0,
    "runs_allowed": 345.0,
    "run_differential": -5.0,
    "run_differential_per_game": -0.061,
    "avg_runs_scored": 4.1463,
    "avg_runs_allowed": 4.2073,
    "offense_index": 0.9195,
    "defense_index": 1.0718,
    "current_streak": "L3",
    "recent": {
      "games": 10,
      "wins": 3,
      "losses": 7,
      "win_pct": 0.3,
      "avg_runs_scored": 2.8,
      "avg_runs_allowed": 4.2,
      "run_differential": -14.0
    },
    "available": true,
    "quality_score": -0.0567
  },
  "edges": {
    "quality_edge": 0.4011,
    "offense_edge": 0.1608,
    "opponent_offense_edge": -0.0805,
    "defense_strength": 0.2135,
    "opponent_defense_weakness": -0.0718,
    "recent_win_pct_edge": 0.4
  },
  "player_factors": {
    "ip": 1.0257,
    "run_prevention": 0.9457,
    "strikeout": 1.0185
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "656730",
    "profile": {
      "available": true,
      "pitcher_id": "656730",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 79.0,
        "k_percent": 33.0,
        "bb_percent": 7.3,
        "woba": 0.251,
        "xwoba": 0.246,
        "sweet_spot_percent": 29.7,
        "barrel_batted_rate": 4.7,
        "hard_hit_percent": 42.2,
        "avg_best_speed": 81.7421,
        "avg_hyper_speed": 94.4489,
        "whiff_percent": 35.9,
        "swing_percent": 51.0
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 1.0323,
        "command_and_miss": 1.28,
        "regression_edge": 0.1429,
        "xwoba_edge": 1.9714,
        "barrel_edge": 0.5778,
        "hard_hit_edge": -0.5571,
        "whiff_edge": 1.4571,
        "bb_edge": 0.475,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "656730",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.4163,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9646,
      "strikeout_factor": 1.0532,
      "walk_factor": 0.9829,
      "homer_factor": 0.9626,
      "woba_minus_xwoba": 0.005,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "656730",
        "espn_id": 40080,
        "player_name": "Trevor Megill",
        "team": "MIL",
        "role": "pitcher",
        "espn_rank": 293,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 293,
          "gp_value": 27.0,
          "gp_rank": 111,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 4.1538,
          "era_rank": null,
          "w_value": 1.0,
          "w_rank": 287,
          "l_value": 2.0,
          "l_rank": 185,
          "sv_value": 9.0,
          "sv_rank": 17,
          "hld_value": 6.0,
          "hld_rank": 68,
          "ip_value": 26.0,
          "ip_rank": 312,
          "h_value": 21.0,
          "h_rank": 312,
          "er_value": 12.0,
          "er_rank": 266,
          "hr_value": 0.0,
          "hr_rank": 578,
          "bb_value": 8.0,
          "bb_rank": 360,
          "k_value": 36.0,
          "k_rank": 191,
          "k_per_9_value": 12.461538,
          "k_per_9_rank": 16,
          "whip_value": 1.1153,
          "whip_rank": null,
          "war_value": 0.14,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9841,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9841,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9923,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9832,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0239,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.0,
    "ER": 2,
    "H": 7,
    "BB": 2,
    "SO": 16,
    "HR": 0,
    "ERA": 1.8,
    "WHIP": 0.9,
    "K9": 14.4,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "656730",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.163,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.508,
    "prior_weight": 0.492
  },
  "role": "pitcher",
  "player_id": "656730",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 26,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.0,
        "ER": 2.0,
        "R": 2.0,
        "H": 5.0,
        "BB": 2.0,
        "SO": 9.0,
        "HR": 0.0,
        "BF": 22.0,
        "Pitches": 73.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4,
        "R": 0.4,
        "H": 1.0,
        "BB": 0.4,
        "SO": 1.8,
        "HR": 0.0,
        "BF": 4.4,
        "Pitches": 14.6
      },
      "rates": {
        "ERA": 3.6,
        "WHIP": 1.4,
        "ER_per_IP": 0.4,
        "H_per_IP": 1.0,
        "BB_per_IP": 0.4,
        "SO_per_IP": 1.8,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.0,
        "ER": 2.0,
        "R": 2.0,
        "H": 7.0,
        "BB": 2.0,
        "SO": 16.0,
        "HR": 0.0,
        "BF": 39.0,
        "Pitches": 137.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.7,
        "BB": 0.2,
        "SO": 1.6,
        "HR": 0.0,
        "BF": 3.9,
        "Pitches": 13.7
      },
      "rates": {
        "ERA": 1.8,
        "WHIP": 0.9,
        "ER_per_IP": 0.2,
        "H_per_IP": 0.7,
        "BB_per_IP": 0.2,
        "SO_per_IP": 1.6,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 26,
      "totals": {
        "IP": 26.0,
        "ER": 8.0,
        "R": 9.0,
        "H": 19.0,
        "BB": 8.0,
        "SO": 36.0,
        "HR": 0.0,
        "BF": 104.0,
        "Pitches": 401.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3077,
        "R": 0.3462,
        "H": 0.7308,
        "BB": 0.3077,
        "SO": 1.3846,
        "HR": 0.0,
        "BF": 4.0,
        "Pitches": 15.4231
      },
      "rates": {
        "ERA": 2.7692,
        "WHIP": 1.0385,
        "ER_per_IP": 0.30769,
        "H_per_IP": 0.73077,
        "BB_per_IP": 0.30769,
        "SO_per_IP": 1.38462,
        "HR_per_IP": 0.0
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.405,
    "predicted_H": 0.907,
    "predicted_BB": 0.337,
    "predicted_SO": 1.298,
    "predicted_HR": 0.072,
    "predicted_ERA": 3.6424,
    "predicted_WHIP": 1.2435
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5579,
  "form_weight": 0.4421,
  "form_reliability": 0.508,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.163,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.508,
    "prior_weight": 0.492
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.405,
      "final": 0.1791,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.907,
      "final": 0.401,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.337,
      "final": 0.149,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 2.0,
      "form": 1.298,
      "final": 1.6896,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.072,
      "final": 0.0318,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.6424,
      "final": 3.6424,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2435,
      "final": 1.2435,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherGrant Anderson
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.2134
ESPN Rank160
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP0.2000
Pre ER0
Pre H0
Pre BB0
Pre SO2
Season ERA2.6703
Season WHIP0.9560
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "MIL",
    "games": 81,
    "wins": 49,
    "losses": 32,
    "win_pct": 0.6049,
    "runs_scored": 424.0,
    "runs_allowed": 301.0,
    "run_differential": 123.0,
    "run_differential_per_game": 1.5185,
    "avg_runs_scored": 5.2346,
    "avg_runs_allowed": 3.716,
    "offense_index": 1.1608,
    "defense_index": 1.2135,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 7,
      "losses": 3,
      "win_pct": 0.7,
      "avg_runs_scored": 7.1,
      "avg_runs_allowed": 4.4,
      "run_differential": 27.0
    },
    "available": true,
    "quality_score": 0.3444
  },
  "opponent": {
    "team": "CLE",
    "games": 82,
    "wins": 43,
    "losses": 39,
    "win_pct": 0.5244,
    "runs_scored": 340.0,
    "runs_allowed": 345.0,
    "run_differential": -5.0,
    "run_differential_per_game": -0.061,
    "avg_runs_scored": 4.1463,
    "avg_runs_allowed": 4.2073,
    "offense_index": 0.9195,
    "defense_index": 1.0718,
    "current_streak": "L3",
    "recent": {
      "games": 10,
      "wins": 3,
      "losses": 7,
      "win_pct": 0.3,
      "avg_runs_scored": 2.8,
      "avg_runs_allowed": 4.2,
      "run_differential": -14.0
    },
    "available": true,
    "quality_score": -0.0567
  },
  "edges": {
    "quality_edge": 0.4011,
    "offense_edge": 0.1608,
    "opponent_offense_edge": -0.0805,
    "defense_strength": 0.2135,
    "opponent_defense_weakness": -0.0718,
    "recent_win_pct_edge": 0.4
  },
  "player_factors": {
    "ip": 1.0257,
    "run_prevention": 0.9457,
    "strikeout": 1.0185
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "681982",
    "profile": {
      "available": true,
      "pitcher_id": "681982",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 82.0,
        "k_percent": 20.5,
        "bb_percent": 8.9,
        "woba": 0.268,
        "xwoba": 0.26,
        "sweet_spot_percent": 31.6,
        "barrel_batted_rate": 6.3,
        "hard_hit_percent": 35.4,
        "avg_best_speed": 76.5032,
        "avg_hyper_speed": 93.2969,
        "whiff_percent": 21.0,
        "swing_percent": 50.0
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.9679,
        "command_and_miss": -0.3486,
        "regression_edge": 0.2286,
        "xwoba_edge": 1.5714,
        "barrel_edge": 0.2222,
        "hard_hit_edge": 0.4143,
        "whiff_edge": -0.6714,
        "bb_edge": 0.075,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "681982",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.2134,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9819,
      "strikeout_factor": 0.9828,
      "walk_factor": 0.9973,
      "homer_factor": 0.9633,
      "woba_minus_xwoba": 0.008,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "681982",
        "espn_id": 42161,
        "player_name": "Grant Anderson",
        "team": "MIL",
        "role": "pitcher",
        "espn_rank": 160,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 160,
          "gp_value": 28.0,
          "gp_rank": 95,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.6703,
          "era_rank": null,
          "w_value": 1.0,
          "w_rank": 287,
          "l_value": 2.0,
          "l_rank": 185,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 5.0,
          "hld_rank": 87,
          "ip_value": 30.1,
          "ip_rank": 246,
          "h_value": 19.0,
          "h_rank": 352,
          "er_value": 9.0,
          "er_rank": 360,
          "hr_value": 3.0,
          "hr_rank": 258,
          "bb_value": 10.0,
          "bb_rank": 303,
          "k_value": 23.0,
          "k_rank": 321,
          "k_per_9_value": 6.824176,
          "k_per_9_rank": 35,
          "whip_value": 0.956,
          "whip_rank": null,
          "war_value": 0.64,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9919,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9919,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9988,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9835,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 0.9923,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 13.1,
    "ER": 3,
    "H": 7,
    "BB": 4,
    "SO": 8,
    "HR": 1,
    "ERA": 2.025,
    "WHIP": 0.825,
    "K9": 5.3999999999999995,
    "HR9": 0.6749999999999999,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-17T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "681982",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.024,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5464,
    "prior_weight": 0.4536
  },
  "role": "pitcher",
  "player_id": "681982",
  "report_date": "20260618_C",
  "season_year": 2026,
  "rows_used": 28,
  "reference_playing_time": 0.667,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 7.0,
        "ER": 2.0,
        "R": 2.0,
        "H": 3.0,
        "BB": 2.0,
        "SO": 5.0,
        "HR": 0.0,
        "BF": 26.0,
        "Pitches": 99.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.4,
        "R": 0.4,
        "H": 0.6,
        "BB": 0.4,
        "SO": 1.0,
        "HR": 0.0,
        "BF": 5.2,
        "Pitches": 19.8
      },
      "rates": {
        "ERA": 2.5714,
        "WHIP": 0.7143,
        "ER_per_IP": 0.28571,
        "H_per_IP": 0.42857,
        "BB_per_IP": 0.28571,
        "SO_per_IP": 0.71429,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 13.1,
        "ER": 3.0,
        "R": 3.0,
        "H": 7.0,
        "BB": 4.0,
        "SO": 8.0,
        "HR": 1.0,
        "BF": 48.0,
        "Pitches": 192.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.3,
        "R": 0.3,
        "H": 0.7,
        "BB": 0.4,
        "SO": 0.8,
        "HR": 0.1,
        "BF": 4.8,
        "Pitches": 19.2
      },
      "rates": {
        "ERA": 2.025,
        "WHIP": 0.825,
        "ER_per_IP": 0.225,
        "H_per_IP": 0.525,
        "BB_per_IP": 0.3,
        "SO_per_IP": 0.6,
        "HR_per_IP": 0.075
      }
    },
    "season": {
      "games": 28,
      "totals": {
        "IP": 30.1,
        "ER": 9.0,
        "R": 10.0,
        "H": 19.0,
        "BB": 10.0,
        "SO": 23.0,
        "HR": 3.0,
        "BF": 112.0,
        "Pitches": 438.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3214,
        "R": 0.3571,
        "H": 0.6786,
        "BB": 0.3571,
        "SO": 0.8214,
        "HR": 0.1071,
        "BF": 4.0,
        "Pitches": 15.6429
      },
      "rates": {
        "ERA": 2.6703,
        "WHIP": 0.956,
        "ER_per_IP": 0.2967,
        "H_per_IP": 0.62637,
        "BB_per_IP": 0.32967,
        "SO_per_IP": 0.75824,
        "HR_per_IP": 0.0989
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.371,
    "predicted_H": 0.712,
    "predicted_BB": 0.327,
    "predicted_SO": 0.794,
    "predicted_HR": 0.091,
    "predicted_ERA": 3.3563,
    "predicted_WHIP": 1.0444
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5416,
  "form_weight": 0.4584,
  "form_reliability": 0.5464,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.024,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5464,
    "prior_weight": 0.4536
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 0.2,
      "form": 1.0,
      "final": 0.2,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.371,
      "final": 0.17,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.712,
      "final": 0.3263,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.327,
      "final": 0.1499,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 2.0,
      "form": 0.794,
      "final": 1.4472,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.091,
      "final": 0.0417,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.3563,
      "final": 3.3563,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.0444,
      "final": 1.0444,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Jackson Chourio (694192) · BATTER · LF · Team MIL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 106
All-history rows before 20260618: 106
System season_avg: 0.3140
Data season_avg (2026 season-to-date): 0.2935
Diff (system - data): 0.0205
System opponent_avg: 0.1430
System season_avg diverges from 2026 season-to-date by 0.0205. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2970.0000.000Hitting_2B0.3580.000-0.3580.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.7204.0005.000Hitting_AB4.3404.000-0.3400.000
predicted_AVG0.2620.0000.200Hitting_AVG0.2930.250-0.293-0.250
predicted_BB0.3510.0000.000Hitting_BB0.3020.000-0.3020.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H1.2400.0001.000Hitting_H1.2741.000-1.274-1.000
predicted_HR0.3200.0000.000Hitting_HR0.1231.000-0.123-1.000
predicted_OBP0.3500.0000.200Hitting_OBP0.3390.250-0.339-0.250
predicted_R0.7570.0001.000Hitting_R0.5751.000-0.575-1.000
predicted_RBI0.8400.0001.000Hitting_RBI0.4342.000-0.434-2.000
predicted_SLG0.5640.0000.200Hitting_SLG0.4611.000-0.461-1.000
predicted_SO1.1080.0001.000Hitting_SO1.3210.000-1.3210.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics2
Deboosted Metrics8
Better Metrics3
Worse Metrics7
Biggest Boostpredicted_AVG: 0.2620 -> 0.2974 (boost 0.0354, better)
Biggest Deboostpredicted_H: 1.2400 -> 0.0000 (deboost -1.2400, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend64251predicted_H: 1.2400 -> 1.3010 (boost 0.0610, better)predicted_AB: 4.7200 -> 4.5431 (deboost -0.1769, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot64242predicted_RBI: 0.8782 -> 0.9390 (boost 0.0608, better)predicted_OBP: 0.3569 -> 0.3455 (deboost -0.0114, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62424predicted_AB: 4.5431 -> 5.0000 (boost 0.4569, better)predicted_HR: 0.3605 -> 0.0000 (deboost -0.3605, worse)AB rounded to 5 (raw=4.72), rates preserved: AVG=0.286 HR/AB=0.076
5consistency_constraints11010predicted_R: 0.8050 -> 1.0000 (boost 0.1950, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.5937 -> 0.2000 (deboost -0.3937, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference50514-predicted_AB: 5.0000 -> 4.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2000 -> 0.5937 (boost 0.3937, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "694192",
  "player_name": "Jackson Chourio",
  "position": "LF",
  "team": "MIL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.297,
        "predicted_3B": 0.0,
        "predicted_AB": 4.72,
        "predicted_AVG": 0.262,
        "predicted_BB": 0.351,
        "predicted_H": 1.24,
        "predicted_HR": 0.32,
        "predicted_OBP": 0.35,
        "predicted_R": 0.757,
        "predicted_RBI": 0.84,
        "predicted_SLG": 0.564,
        "predicted_SO": 1.108
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2632,
        "predicted_3B": 0.0008,
        "predicted_AB": 4.5431,
        "predicted_AVG": 0.2874,
        "predicted_BB": 0.3278,
        "predicted_H": 1.301,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.3493,
        "predicted_OBP": 0.3569,
        "predicted_R": 0.7529,
        "predicted_RBI": 0.8782,
        "predicted_SLG": 0.5989,
        "predicted_SO": 1.023
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.297,
          "after": 0.2632,
          "delta": -0.0338,
          "percent_delta": -0.1138,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.72,
          "after": 4.5431,
          "delta": -0.1769,
          "percent_delta": -0.0375,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.262,
          "after": 0.2874,
          "delta": 0.0254,
          "percent_delta": 0.0969,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.351,
          "after": 0.3278,
          "delta": -0.0232,
          "percent_delta": -0.0661,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.24,
          "after": 1.301,
          "delta": 0.061,
          "percent_delta": 0.0492,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.32,
          "after": 0.3493,
          "delta": 0.0293,
          "percent_delta": 0.0916,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.35,
          "after": 0.3569,
          "delta": 0.0069,
          "percent_delta": 0.0197,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.757,
          "after": 0.7529,
          "delta": -0.0041,
          "percent_delta": -0.0054,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.84,
          "after": 0.8782,
          "delta": 0.0382,
          "percent_delta": 0.0455,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.564,
          "after": 0.5989,
          "delta": 0.0349,
          "percent_delta": 0.0619,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.108,
          "after": 1.023,
          "delta": -0.085,
          "percent_delta": -0.0767,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 4,
        "deboosted_metrics": 2,
        "better_metrics": 5,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 1.24,
          "after": 1.301,
          "delta": 0.061,
          "percent_delta": 0.0492,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.72,
          "after": 4.5431,
          "delta": -0.1769,
          "percent_delta": -0.0375,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 37
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2632,
        "predicted_3B": 0.0008,
        "predicted_AB": 4.5431,
        "predicted_AVG": 0.2974,
        "predicted_BB": 0.3339,
        "predicted_H": 1.351,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.3605,
        "predicted_OBP": 0.3455,
        "predicted_R": 0.805,
        "predicted_RBI": 0.939,
        "predicted_SLG": 0.5937,
        "predicted_SO": 1.0041
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2632,
          "after": 0.2632,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.5431,
          "after": 4.5431,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2874,
          "after": 0.2974,
          "delta": 0.01,
          "percent_delta": 0.0348,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3278,
          "after": 0.3339,
          "delta": 0.0061,
          "percent_delta": 0.0186,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.301,
          "after": 1.351,
          "delta": 0.05,
          "percent_delta": 0.0384,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.006,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.3493,
          "after": 0.3605,
          "delta": 0.0112,
          "percent_delta": 0.0321,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3569,
          "after": 0.3455,
          "delta": -0.0114,
          "percent_delta": -0.0319,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.7529,
          "after": 0.805,
          "delta": 0.0521,
          "percent_delta": 0.0692,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.8782,
          "after": 0.939,
          "delta": 0.0608,
          "percent_delta": 0.0692,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5989,
          "after": 0.5937,
          "delta": -0.0052,
          "percent_delta": -0.0087,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.023,
          "after": 1.0041,
          "delta": -0.0189,
          "percent_delta": -0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 4,
        "deboosted_metrics": 2,
        "better_metrics": 4,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.8782,
          "after": 0.939,
          "delta": 0.0608,
          "percent_delta": 0.0692,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3569,
          "after": 0.3455,
          "delta": -0.0114,
          "percent_delta": -0.0319,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 5 (raw=4.72), rates preserved: AVG=0.286 HR/AB=0.076",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2632,
          "after": 0.0,
          "delta": -0.2632,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.5431,
          "after": 5.0,
          "delta": 0.4569,
          "percent_delta": 0.1006,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3339,
          "after": 0.0,
          "delta": -0.3339,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.351,
          "after": 1.0,
          "delta": -0.351,
          "percent_delta": -0.2598,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.0,
          "delta": -0.006,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.3605,
          "after": 0.0,
          "delta": -0.3605,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.939,
          "after": 1.0,
          "delta": 0.061,
          "percent_delta": 0.065,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0041,
          "after": 1.0,
          "delta": -0.0041,
          "percent_delta": -0.0041,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 4.5431,
          "after": 5.0,
          "delta": 0.4569,
          "percent_delta": 0.1006,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_HR",
          "before": 0.3605,
          "after": 0.0,
          "delta": -0.3605,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.805,
          "after": 1.0,
          "delta": 0.195,
          "percent_delta": 0.2422,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.805,
          "after": 1.0,
          "delta": 0.195,
          "percent_delta": 0.2422,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.2,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.2,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2974,
          "after": 0.2,
          "delta": -0.0974,
          "percent_delta": -0.3275,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3455,
          "after": 0.2,
          "delta": -0.1455,
          "percent_delta": -0.4211,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5937,
          "after": 0.2,
          "delta": -0.3937,
          "percent_delta": -0.6631,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.5937,
          "after": 0.2,
          "delta": -0.3937,
          "percent_delta": -0.6631,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 4.0,
          "delta": -1.0,
          "percent_delta": -0.2,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 0,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 4,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 4.0,
          "delta": -1.0,
          "percent_delta": -0.2,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2974,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_LF": 0.0,
        "predicted_OBP": 0.3455,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.5937,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2,
          "after": 0.2974,
          "delta": 0.0974,
          "percent_delta": 0.4868,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2,
          "after": 0.3455,
          "delta": 0.1455,
          "percent_delta": 0.7273,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2,
          "after": 0.5937,
          "delta": 0.3937,
          "percent_delta": 1.9687,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.2,
          "after": 0.5937,
          "delta": 0.3937,
          "percent_delta": 1.9687,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.297,
        "after": 0.0,
        "delta": -0.297,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.72,
        "after": 4.0,
        "delta": -0.72,
        "percent_delta": -0.1525,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.262,
        "after": 0.2974,
        "delta": 0.0354,
        "percent_delta": 0.1351,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.351,
        "after": 0.0,
        "delta": -0.351,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.24,
        "after": 0.0,
        "delta": -1.24,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.32,
        "after": 0.0,
        "delta": -0.32,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.35,
        "after": 0.3455,
        "delta": -0.0045,
        "percent_delta": -0.0129,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.757,
        "after": 0.0,
        "delta": -0.757,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.84,
        "after": 0.0,
        "delta": -0.84,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.564,
        "after": 0.5937,
        "delta": 0.0297,
        "percent_delta": 0.0527,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.108,
        "after": 0.0,
        "delta": -1.108,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 2,
      "deboosted_metrics": 8,
      "better_metrics": 3,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_AVG",
        "before": 0.262,
        "after": 0.2974,
        "delta": 0.0354,
        "percent_delta": 0.1351,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 1.24,
        "after": 0.0,
        "delta": -1.24,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.297-
predicted_3B0.000-
predicted_AB4.720-
predicted_AVG0.262-
predicted_BB0.351-
predicted_H1.240-
predicted_HR0.320-
predicted_OBP0.350-
predicted_R0.757-
predicted_RBI0.840-
predicted_SLG0.564-
predicted_SO1.108-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.263-0.034
predicted_3B0.0010.001
predicted_AB4.543-0.177
predicted_AVG0.2870.025
predicted_BB0.328-0.023
predicted_H1.3010.061
predicted_HBP0.006-
predicted_HR0.3490.029
predicted_OBP0.3570.007
predicted_R0.753-0.004
predicted_RBI0.8780.038
predicted_SLG0.5990.035
predicted_SO1.023-0.085
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2630.000
predicted_3B0.0010.000
predicted_AB4.5430.000
predicted_AVG0.2970.010
predicted_BB0.3340.006
predicted_H1.3510.050
predicted_HBP0.0060.000
predicted_HR0.3600.011
predicted_OBP0.345-0.011
predicted_R0.8050.052
predicted_RBI0.9390.061
predicted_SLG0.594-0.005
predicted_SO1.004-0.019
4. ab_floor_and_scaling

AB rounded to 5 (raw=4.72), rates preserved: AVG=0.286 HR/AB=0.076

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB5.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB5.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.263
predicted_3B0.000-0.001
predicted_AB5.0000.457
predicted_AVG0.200-0.097
predicted_BB0.000-0.334
predicted_H1.000-0.351
predicted_HR0.000-0.360
predicted_OBP0.200-0.145
predicted_R1.0000.195
predicted_RBI1.0000.061
predicted_SLG0.200-0.394
predicted_SO1.000-0.004
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.000-1.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 37
Reference playing time: 4.720
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-21.0008.0000.0000.0004.0008.0004.0001.0002.0000.38100.40910.95240.38100.19050.38100.04760.0952
last_100.2010-47.00017.0002.0000.0006.00012.0009.0002.0008.0000.36170.38000.78720.36170.12770.25530.04250.1702
season0.6037-159.00050.00011.0000.00010.00028.00028.00013.00041.0000.31450.36420.57230.31450.06290.17610.08180.2579
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2140
predicted_3B0.0020
predicted_AB4.2850
predicted_AVG0.3244
predicted_BB0.2940
predicted_H1.3900
predicted_HBP0.0060
predicted_HR0.3920
predicted_OBP0.3670
predicted_R0.7470
predicted_RBI0.9340
predicted_SLG0.6497
predicted_SO0.8990
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.29700.21400.2632model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB4.72004.28504.5431model_form_blend
predicted_AVG0.26200.32440.2874model_form_blend
predicted_BB0.35100.29400.3278model_form_blend
predicted_H1.24001.39001.3010model_form_blend
predicted_HBP-0.00600.0060form_only
predicted_HR0.32000.39200.3493model_form_blend
predicted_OBP0.35000.36700.3569model_form_blend
predicted_R0.75700.74700.7529model_form_blend
predicted_RBI0.84000.93400.8782model_form_blend
predicted_SLG0.56400.64970.5989model_form_blend
predicted_SO1.10800.89901.0230model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date106
Season rows before report date106
Report year2026
Profile rows used37
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.314

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R1
Hitting_RBI2
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB4
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedLF
gameID20260617_CLE@MIL
game_typefull
mlbID694192
playerID694192
playerNameJackson Chourio
posLF
startedTrue
startingPositionLF
teamMIL
teamID16
game_date2026-06-17
sl_k_percent23.7
sl_bb_percent7.5
sl_woba0.402
sl_xwoba0.358
sl_xba0.267
sl_xslg0.52
sl_sweet_spot_percent34.5
sl_barrel_batted_rate15.3
sl_hard_hit_percent48.3
sl_exit_velocity_avg92.3
sl_launch_angle_avg12.7
sl_whiff_percent23.0
sl_swing_percent46.5
Andrew Vaughn (683734) · BATTER · 1B · Team MIL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 78
All-history rows before 20260618: 78
System season_avg: 0.3540
Data season_avg (2026 season-to-date): 0.3424
Diff (system - data): 0.0116
System opponent_avg: 0.3540

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.3121.0000.000Hitting_2B0.3721.0000.6280.000
predicted_3B0.0310.0000.000Hitting_3B0.0130.000-0.0130.000
predicted_AB3.1003.0003.000Hitting_AB3.2951.000-0.2952.000
predicted_AVG0.2910.3330.333Hitting_AVG0.3421.000-0.009-0.667
predicted_BB0.2810.0000.000Hitting_BB0.3330.000-0.3330.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.9001.0001.000Hitting_H1.1281.000-0.1280.000
predicted_HR0.0900.0000.000Hitting_HR0.0640.000-0.0640.000
predicted_OBP0.3900.3330.333Hitting_OBP0.4211.000-0.088-0.667
predicted_R0.4380.0000.000Hitting_R0.5380.000-0.5380.000
predicted_RBI0.5700.0001.000Hitting_RBI0.5641.000-0.564-1.000
predicted_SLG0.4770.6670.333Hitting_SLG0.5212.0000.145-1.333
predicted_SO0.3750.0000.000Hitting_SO0.3970.000-0.3970.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectdeboosted
Changed Metrics10
Boosted Metrics4
Deboosted Metrics6
Better Metrics5
Worse Metrics5
Biggest Boostpredicted_2B: 0.3120 -> 1.0000 (boost 0.6880, better)
Biggest Deboostpredicted_RBI: 0.5700 -> 0.0000 (deboost -0.5700, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend44040predicted_BB: 0.2810 -> 0.3426 (boost 0.0616, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot32121predicted_SLG: 0.4935 -> 0.5210 (boost 0.0275, better)predicted_OBP: 0.4032 -> 0.3895 (deboost -0.0137, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling61524predicted_RBI: 0.6269 -> 1.0000 (boost 0.3731, better)predicted_SO: 0.4019 -> 0.0000 (deboost -0.4019, better)AB rounded to 3 (raw=3.10), rates preserved: AVG=0.317 HR/AB=0.027
5consistency_constraints10101-predicted_R: 0.4343 -> 0.0000 (deboost -0.4343, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.3202 -> 0.3330 (boost 0.0128, better)predicted_SLG: 0.5210 -> 0.3330 (deboost -0.1880, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21111predicted_2B: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_RBI: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.3330 -> 0.5210 (boost 0.1880, better)predicted_AVG: 0.3330 -> 0.3202 (deboost -0.0128, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "683734",
  "player_name": "Andrew Vaughn",
  "position": "1B",
  "team": "MIL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.312,
        "predicted_3B": 0.031,
        "predicted_AB": 3.1,
        "predicted_AVG": 0.291,
        "predicted_BB": 0.281,
        "predicted_H": 0.9,
        "predicted_HR": 0.09,
        "predicted_OBP": 0.39,
        "predicted_R": 0.438,
        "predicted_RBI": 0.57,
        "predicted_SLG": 0.477,
        "predicted_SO": 0.375
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2981,
        "predicted_3B": 0.0325,
        "predicted_AB": 3.071,
        "predicted_AVG": 0.3089,
        "predicted_BB": 0.3426,
        "predicted_H": 0.9469,
        "predicted_HBP": 0.035,
        "predicted_HR": 0.0819,
        "predicted_OBP": 0.4032,
        "predicted_R": 0.4062,
        "predicted_RBI": 0.5863,
        "predicted_SLG": 0.4935,
        "predicted_SO": 0.4095
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.312,
          "after": 0.2981,
          "delta": -0.0139,
          "percent_delta": -0.0446,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.031,
          "after": 0.0325,
          "delta": 0.0015,
          "percent_delta": 0.0484,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.1,
          "after": 3.071,
          "delta": -0.029,
          "percent_delta": -0.0094,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.291,
          "after": 0.3089,
          "delta": 0.0179,
          "percent_delta": 0.0615,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.281,
          "after": 0.3426,
          "delta": 0.0616,
          "percent_delta": 0.2192,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9,
          "after": 0.9469,
          "delta": 0.0469,
          "percent_delta": 0.0521,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.09,
          "after": 0.0819,
          "delta": -0.0081,
          "percent_delta": -0.09,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.39,
          "after": 0.4032,
          "delta": 0.0132,
          "percent_delta": 0.0338,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.438,
          "after": 0.4062,
          "delta": -0.0318,
          "percent_delta": -0.0726,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.57,
          "after": 0.5863,
          "delta": 0.0163,
          "percent_delta": 0.0286,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.477,
          "after": 0.4935,
          "delta": 0.0165,
          "percent_delta": 0.0346,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.375,
          "after": 0.4095,
          "delta": 0.0345,
          "percent_delta": 0.092,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 4,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.281,
          "after": 0.3426,
          "delta": 0.0616,
          "percent_delta": 0.2192,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 32
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2981,
        "predicted_3B": 0.0325,
        "predicted_AB": 3.071,
        "predicted_AVG": 0.3202,
        "predicted_BB": 0.3489,
        "predicted_H": 0.9833,
        "predicted_HBP": 0.035,
        "predicted_HR": 0.0845,
        "predicted_OBP": 0.3895,
        "predicted_R": 0.4343,
        "predicted_RBI": 0.6269,
        "predicted_SLG": 0.521,
        "predicted_SO": 0.4019
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2981,
          "after": 0.2981,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0325,
          "after": 0.0325,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.071,
          "after": 3.071,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.3089,
          "after": 0.3202,
          "delta": 0.0113,
          "percent_delta": 0.0366,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3426,
          "after": 0.3489,
          "delta": 0.0063,
          "percent_delta": 0.0184,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9469,
          "after": 0.9833,
          "delta": 0.0364,
          "percent_delta": 0.0384,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.035,
          "after": 0.035,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0819,
          "after": 0.0845,
          "delta": 0.0026,
          "percent_delta": 0.0317,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4032,
          "after": 0.3895,
          "delta": -0.0137,
          "percent_delta": -0.034,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4062,
          "after": 0.4343,
          "delta": 0.0281,
          "percent_delta": 0.0692,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5863,
          "after": 0.6269,
          "delta": 0.0406,
          "percent_delta": 0.0692,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4935,
          "after": 0.521,
          "delta": 0.0275,
          "percent_delta": 0.0557,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.4095,
          "after": 0.4019,
          "delta": -0.0076,
          "percent_delta": -0.0186,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.4935,
          "after": 0.521,
          "delta": 0.0275,
          "percent_delta": 0.0557,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.4032,
          "after": 0.3895,
          "delta": -0.0137,
          "percent_delta": -0.034,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.10), rates preserved: AVG=0.317 HR/AB=0.027",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2981,
          "after": 0.0,
          "delta": -0.2981,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0325,
          "after": 0.0,
          "delta": -0.0325,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.071,
          "after": 3.0,
          "delta": -0.071,
          "percent_delta": -0.0231,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3489,
          "after": 0.0,
          "delta": -0.3489,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9833,
          "after": 1.0,
          "delta": 0.0167,
          "percent_delta": 0.017,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.035,
          "after": 0.0,
          "delta": -0.035,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0845,
          "after": 0.0,
          "delta": -0.0845,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6269,
          "after": 1.0,
          "delta": 0.3731,
          "percent_delta": 0.5952,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.4019,
          "after": 0.0,
          "delta": -0.4019,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 1,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.6269,
          "after": 1.0,
          "delta": 0.3731,
          "percent_delta": 0.5952,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 0.4019,
          "after": 0.0,
          "delta": -0.4019,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4343,
          "after": 0.0,
          "delta": -0.4343,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4343,
          "after": 0.0,
          "delta": -0.4343,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.3202,
          "after": 0.333,
          "delta": 0.0128,
          "percent_delta": 0.04,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3895,
          "after": 0.333,
          "delta": -0.0565,
          "percent_delta": -0.1451,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.521,
          "after": 0.333,
          "delta": -0.188,
          "percent_delta": -0.3608,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.3202,
          "after": 0.333,
          "delta": 0.0128,
          "percent_delta": 0.04,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.521,
          "after": 0.333,
          "delta": -0.188,
          "percent_delta": -0.3608,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.3202,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_FB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3895,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.521,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.3202,
          "delta": -0.0128,
          "percent_delta": -0.0385,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3895,
          "delta": 0.0565,
          "percent_delta": 0.1698,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.521,
          "delta": 0.188,
          "percent_delta": 0.5645,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.521,
          "delta": 0.188,
          "percent_delta": 0.5645,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.3202,
          "delta": -0.0128,
          "percent_delta": -0.0385,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.312,
        "after": 1.0,
        "delta": 0.688,
        "percent_delta": 2.2051,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.031,
        "after": 0.0,
        "delta": -0.031,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.1,
        "after": 3.0,
        "delta": -0.1,
        "percent_delta": -0.0323,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.291,
        "after": 0.3202,
        "delta": 0.0292,
        "percent_delta": 0.1003,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.281,
        "after": 0.0,
        "delta": -0.281,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.9,
        "after": 1.0,
        "delta": 0.1,
        "percent_delta": 0.1111,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.09,
        "after": 0.0,
        "delta": -0.09,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.39,
        "after": 0.3895,
        "delta": -0.0005,
        "percent_delta": -0.0013,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.438,
        "after": 0.0,
        "delta": -0.438,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.57,
        "after": 0.0,
        "delta": -0.57,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.477,
        "after": 0.521,
        "delta": 0.044,
        "percent_delta": 0.0922,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.375,
        "after": 0.0,
        "delta": -0.375,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 4,
      "deboosted_metrics": 6,
      "better_metrics": 5,
      "worse_metrics": 5,
      "biggest_boost": {
        "metric": "predicted_2B",
        "before": 0.312,
        "after": 1.0,
        "delta": 0.688,
        "percent_delta": 2.2051,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.57,
        "after": 0.0,
        "delta": -0.57,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "deboosted"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.312-
predicted_3B0.031-
predicted_AB3.100-
predicted_AVG0.291-
predicted_BB0.281-
predicted_H0.900-
predicted_HR0.090-
predicted_OBP0.390-
predicted_R0.438-
predicted_RBI0.570-
predicted_SLG0.477-
predicted_SO0.375-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.298-0.014
predicted_3B0.0330.002
predicted_AB3.071-0.029
predicted_AVG0.3090.018
predicted_BB0.3430.062
predicted_H0.9470.047
predicted_HBP0.035-
predicted_HR0.082-0.008
predicted_OBP0.4030.013
predicted_R0.406-0.032
predicted_RBI0.5860.016
predicted_SLG0.4930.017
predicted_SO0.4090.034
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2980.000
predicted_3B0.0330.000
predicted_AB3.0710.000
predicted_AVG0.3200.011
predicted_BB0.3490.006
predicted_H0.9830.036
predicted_HBP0.0350.000
predicted_HR0.0850.003
predicted_OBP0.390-0.014
predicted_R0.4340.028
predicted_RBI0.6270.041
predicted_SLG0.5210.028
predicted_SO0.402-0.008
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.10), rates preserved: AVG=0.317 HR/AB=0.027

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO0.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO0.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.298
predicted_3B0.000-0.033
predicted_AB3.000-0.071
predicted_AVG0.3330.013
predicted_BB0.000-0.349
predicted_H1.0000.017
predicted_HR0.000-0.085
predicted_OBP0.333-0.056
predicted_R0.000-0.434
predicted_RBI1.0000.373
predicted_SLG0.333-0.188
predicted_SO0.000-0.402
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA3.000-
R0.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO0.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 32
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-10.0003.0001.0000.0000.0002.0000.0004.0002.0000.30000.50000.40000.30000.00000.20000.40000.2000
last_100.2010-27.00012.0003.0001.0001.0009.0004.0004.0003.0000.44440.51610.74070.44440.03700.33330.14820.1111
season0.6032-99.00035.00010.0001.0002.00019.00014.0009.00012.0000.35350.41820.53540.35350.02020.19190.09090.1212
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2760
predicted_3B0.0350
predicted_AB3.0250
predicted_AVG0.3373
predicted_BB0.4400
predicted_H1.0210
predicted_HBP0.0350
predicted_HR0.0690
predicted_OBP0.4240
predicted_R0.3560
predicted_RBI0.6120
predicted_SLG0.5195
predicted_SO0.4640
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.31200.27600.2981model_form_blend
predicted_3B0.03100.03500.0325model_form_blend
predicted_AB3.10003.02503.0710model_form_blend
predicted_AVG0.29100.33730.3089model_form_blend
predicted_BB0.28100.44000.3426model_form_blend
predicted_H0.90001.02100.9469model_form_blend
predicted_HBP-0.03500.0350form_only
predicted_HR0.09000.06900.0819model_form_blend
predicted_OBP0.39000.42400.4032model_form_blend
predicted_R0.43800.35600.4062model_form_blend
predicted_RBI0.57000.61200.5863model_form_blend
predicted_SLG0.47700.51950.4935model_form_blend
predicted_SO0.37500.46400.4095model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date78
Season rows before report date78
Report year2026
Profile rows used32
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA3
AB3
H1
2B1
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.354

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB1
Hitting_AVG1.0
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB2
Hitting_battingOrder7
Hitting_substitutionOrder1
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedPH
gameID20260617_CLE@MIL
game_typeph
mlbID683734
noteDoubled for Mitchell in the 8th.
playerID683734
playerNameAndrew Vaughn
pos1B
startedFalse
startingPositionPH
teamMIL
teamID16
game_date2026-06-17
sl_k_percent10.7
sl_bb_percent9.8
sl_woba0.421
sl_xwoba0.348
sl_xba0.289
sl_xslg0.407
sl_sweet_spot_percent34.5
sl_barrel_batted_rate3.4
sl_hard_hit_percent42.5
sl_exit_velocity_avg89.3
sl_launch_angle_avg9.6
sl_whiff_percent18.6
sl_swing_percent41.2
Christian Yelich (592885) · BATTER · DH · Team MIL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 113
All-history rows before 20260618: 113
System season_avg: 0.2720
Data season_avg (2026 season-to-date): 0.2892
Diff (system - data): -0.0172
System opponent_avg: 0.2220
System season_avg diverges from 2026 season-to-date by -0.0172. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2000.0000.000Hitting_2B0.2480.000-0.2480.000
predicted_3B0.0250.0000.000Hitting_3B0.0440.000-0.0440.000
predicted_AB4.4704.0004.000Hitting_AB3.9475.0000.053-1.000
predicted_AVG0.2340.2500.250Hitting_AVG0.2890.400-0.039-0.150
predicted_BB0.4250.0000.000Hitting_BB0.3890.000-0.3890.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H1.0501.0001.000Hitting_H1.1422.000-0.142-1.000
predicted_HR0.1400.0000.000Hitting_HR0.1421.000-0.142-1.000
predicted_OBP0.3220.2500.250Hitting_OBP0.3540.400-0.104-0.150
predicted_R0.8001.0001.000Hitting_R0.7172.0000.283-1.000
predicted_RBI0.5500.0001.000Hitting_RBI0.5932.000-0.593-2.000
predicted_SLG0.4030.2500.250Hitting_SLG0.4821.000-0.232-0.750
predicted_SO1.2751.0001.000Hitting_SO1.1423.000-0.142-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics2
Deboosted Metrics7
Better Metrics3
Worse Metrics6
Biggest Boostpredicted_R: 0.8000 -> 1.0000 (boost 0.2000, better)
Biggest Deboostpredicted_RBI: 0.5500 -> 0.0000 (deboost -0.5500, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend21111predicted_AVG: 0.2340 -> 0.2421 (boost 0.0081, better)predicted_AB: 4.4700 -> 4.3090 (deboost -0.1610, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot22020predicted_R: 0.8151 -> 0.8715 (boost 0.0564, better)-Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71625predicted_RBI: 0.5920 -> 1.0000 (boost 0.4080, better)predicted_BB: 0.4366 -> 0.0000 (deboost -0.4366, worse)AB rounded to 4 (raw=4.47), rates preserved: AVG=0.242 HR/AB=0.032
5consistency_constraints11010predicted_R: 0.8715 -> 1.0000 (boost 0.1285, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context20202-predicted_SLG: 0.4071 -> 0.2500 (deboost -0.1571, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference10101-predicted_RBI: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final22020predicted_SLG: 0.2500 -> 0.4071 (boost 0.1571, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "592885",
  "player_name": "Christian Yelich",
  "position": "DH",
  "team": "MIL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.2,
        "predicted_3B": 0.025,
        "predicted_AB": 4.47,
        "predicted_AVG": 0.234,
        "predicted_BB": 0.425,
        "predicted_H": 1.05,
        "predicted_HR": 0.14,
        "predicted_OBP": 0.322,
        "predicted_R": 0.8,
        "predicted_RBI": 0.55,
        "predicted_SLG": 0.403,
        "predicted_SO": 1.275
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1996,
        "predicted_3B": 0.0213,
        "predicted_AB": 4.309,
        "predicted_AVG": 0.2421,
        "predicted_BB": 0.4287,
        "predicted_H": 1.0435,
        "predicted_HBP": 0.033,
        "predicted_HR": 0.1384,
        "predicted_OBP": 0.324,
        "predicted_R": 0.8151,
        "predicted_RBI": 0.5537,
        "predicted_SLG": 0.4061,
        "predicted_SO": 1.2876
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2,
          "after": 0.1996,
          "delta": -0.0004,
          "percent_delta": -0.002,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.025,
          "after": 0.0213,
          "delta": -0.0037,
          "percent_delta": -0.148,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.47,
          "after": 4.309,
          "delta": -0.161,
          "percent_delta": -0.036,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.234,
          "after": 0.2421,
          "delta": 0.0081,
          "percent_delta": 0.0346,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.425,
          "after": 0.4287,
          "delta": 0.0037,
          "percent_delta": 0.0087,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.05,
          "after": 1.0435,
          "delta": -0.0065,
          "percent_delta": -0.0062,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.14,
          "after": 0.1384,
          "delta": -0.0016,
          "percent_delta": -0.0114,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.322,
          "after": 0.324,
          "delta": 0.002,
          "percent_delta": 0.0062,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.8,
          "after": 0.8151,
          "delta": 0.0151,
          "percent_delta": 0.0189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.55,
          "after": 0.5537,
          "delta": 0.0037,
          "percent_delta": 0.0067,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.403,
          "after": 0.4061,
          "delta": 0.0031,
          "percent_delta": 0.0077,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.275,
          "after": 1.2876,
          "delta": 0.0126,
          "percent_delta": 0.0099,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.234,
          "after": 0.2421,
          "delta": 0.0081,
          "percent_delta": 0.0346,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.47,
          "after": 4.309,
          "delta": -0.161,
          "percent_delta": -0.036,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 40
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1996,
        "predicted_3B": 0.0213,
        "predicted_AB": 4.309,
        "predicted_AVG": 0.2515,
        "predicted_BB": 0.4366,
        "predicted_H": 1.0836,
        "predicted_HBP": 0.033,
        "predicted_HR": 0.1429,
        "predicted_OBP": 0.3203,
        "predicted_R": 0.8715,
        "predicted_RBI": 0.592,
        "predicted_SLG": 0.4071,
        "predicted_SO": 1.2638
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1996,
          "after": 0.1996,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0213,
          "after": 0.0213,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.309,
          "after": 4.309,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2421,
          "after": 0.2515,
          "delta": 0.0094,
          "percent_delta": 0.0388,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4287,
          "after": 0.4366,
          "delta": 0.0079,
          "percent_delta": 0.0184,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0435,
          "after": 1.0836,
          "delta": 0.0401,
          "percent_delta": 0.0384,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.033,
          "after": 0.033,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1384,
          "after": 0.1429,
          "delta": 0.0045,
          "percent_delta": 0.0325,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.324,
          "after": 0.3203,
          "delta": -0.0037,
          "percent_delta": -0.0114,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.8151,
          "after": 0.8715,
          "delta": 0.0564,
          "percent_delta": 0.0692,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5537,
          "after": 0.592,
          "delta": 0.0383,
          "percent_delta": 0.0692,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4061,
          "after": 0.4071,
          "delta": 0.001,
          "percent_delta": 0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.2876,
          "after": 1.2638,
          "delta": -0.0238,
          "percent_delta": -0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.8151,
          "after": 0.8715,
          "delta": 0.0564,
          "percent_delta": 0.0692,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.47), rates preserved: AVG=0.242 HR/AB=0.032",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1996,
          "after": 0.0,
          "delta": -0.1996,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0213,
          "after": 0.0,
          "delta": -0.0213,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.309,
          "after": 4.0,
          "delta": -0.309,
          "percent_delta": -0.0717,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4366,
          "after": 0.0,
          "delta": -0.4366,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0836,
          "after": 1.0,
          "delta": -0.0836,
          "percent_delta": -0.0772,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.033,
          "after": 0.0,
          "delta": -0.033,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1429,
          "after": 0.0,
          "delta": -0.1429,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.592,
          "after": 1.0,
          "delta": 0.408,
          "percent_delta": 0.6892,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.2638,
          "after": 1.0,
          "delta": -0.2638,
          "percent_delta": -0.2087,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.592,
          "after": 1.0,
          "delta": 0.408,
          "percent_delta": 0.6892,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.4366,
          "after": 0.0,
          "delta": -0.4366,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.8715,
          "after": 1.0,
          "delta": 0.1285,
          "percent_delta": 0.1474,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.8715,
          "after": 1.0,
          "delta": 0.1285,
          "percent_delta": 0.1474,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2515,
          "after": 0.25,
          "delta": -0.0015,
          "percent_delta": -0.006,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3203,
          "after": 0.25,
          "delta": -0.0703,
          "percent_delta": -0.2195,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4071,
          "after": 0.25,
          "delta": -0.1571,
          "percent_delta": -0.3859,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4071,
          "after": 0.25,
          "delta": -0.1571,
          "percent_delta": -0.3859,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2515,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3203,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4071,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2515,
          "delta": 0.0015,
          "percent_delta": 0.0059,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3203,
          "delta": 0.0703,
          "percent_delta": 0.2813,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4071,
          "delta": 0.1571,
          "percent_delta": 0.6285,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4071,
          "delta": 0.1571,
          "percent_delta": 0.6285,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.2,
        "after": 0.0,
        "delta": -0.2,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.025,
        "after": 0.0,
        "delta": -0.025,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.47,
        "after": 4.0,
        "delta": -0.47,
        "percent_delta": -0.1051,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.234,
        "after": 0.2515,
        "delta": 0.0175,
        "percent_delta": 0.0748,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.425,
        "after": 0.0,
        "delta": -0.425,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.05,
        "after": 1.0,
        "delta": -0.05,
        "percent_delta": -0.0476,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.14,
        "after": 0.0,
        "delta": -0.14,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.322,
        "after": 0.3203,
        "delta": -0.0017,
        "percent_delta": -0.0053,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.8,
        "after": 1.0,
        "delta": 0.2,
        "percent_delta": 0.25,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.55,
        "after": 0.0,
        "delta": -0.55,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.403,
        "after": 0.4071,
        "delta": 0.0041,
        "percent_delta": 0.0102,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.275,
        "after": 1.0,
        "delta": -0.275,
        "percent_delta": -0.2157,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 2,
      "deboosted_metrics": 7,
      "better_metrics": 3,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_R",
        "before": 0.8,
        "after": 1.0,
        "delta": 0.2,
        "percent_delta": 0.25,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.55,
        "after": 0.0,
        "delta": -0.55,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.200-
predicted_3B0.025-
predicted_AB4.470-
predicted_AVG0.234-
predicted_BB0.425-
predicted_H1.050-
predicted_HR0.140-
predicted_OBP0.322-
predicted_R0.800-
predicted_RBI0.550-
predicted_SLG0.403-
predicted_SO1.275-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.200-0.000
predicted_3B0.021-0.004
predicted_AB4.309-0.161
predicted_AVG0.2420.008
predicted_BB0.4290.004
predicted_H1.044-0.006
predicted_HBP0.033-
predicted_HR0.138-0.002
predicted_OBP0.3240.002
predicted_R0.8150.015
predicted_RBI0.5540.004
predicted_SLG0.4060.003
predicted_SO1.2880.013
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2000.000
predicted_3B0.0210.000
predicted_AB4.3090.000
predicted_AVG0.2520.009
predicted_BB0.4370.008
predicted_H1.0840.040
predicted_HBP0.0330.000
predicted_HR0.1430.005
predicted_OBP0.320-0.004
predicted_R0.8720.056
predicted_RBI0.5920.038
predicted_SLG0.4070.001
predicted_SO1.264-0.024
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.47), rates preserved: AVG=0.242 HR/AB=0.032

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.200
predicted_3B0.000-0.021
predicted_AB4.000-0.309
predicted_AVG0.250-0.002
predicted_BB0.000-0.437
predicted_H1.000-0.084
predicted_HR0.000-0.143
predicted_OBP0.250-0.070
predicted_R1.0000.128
predicted_RBI1.0000.408
predicted_SLG0.250-0.157
predicted_SO1.000-0.264
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 40
Reference playing time: 4.470
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.0004.0001.0000.0001.0003.0005.0003.0008.0000.20000.29170.40000.20000.05000.15000.15000.4000
last_100.2010-47.00012.0002.0000.0001.0004.00011.0004.00015.0000.25530.32080.36170.25530.02130.08510.08510.3191
season0.6040-158.00043.0008.0001.0005.00024.00032.00017.00051.0000.27220.34460.43040.27220.03160.15190.10760.3228
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1990
predicted_3B0.0160
predicted_AB4.0750
predicted_AVG0.2538
predicted_BB0.4340
predicted_H1.0340
predicted_HBP0.0330
predicted_HR0.1360
predicted_OBP0.3270
predicted_R0.8370
predicted_RBI0.5590
predicted_SLG0.4105
predicted_SO1.3060
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.20000.19900.1996model_form_blend
predicted_3B0.02500.01600.0213model_form_blend
predicted_AB4.47004.07504.3090model_form_blend
predicted_AVG0.23400.25380.2421model_form_blend
predicted_BB0.42500.43400.4287model_form_blend
predicted_H1.05001.03401.0435model_form_blend
predicted_HBP-0.03300.0330form_only
predicted_HR0.14000.13600.1384model_form_blend
predicted_OBP0.32200.32700.3240model_form_blend
predicted_R0.80000.83700.8151model_form_blend
predicted_RBI0.55000.55900.5537model_form_blend
predicted_SLG0.40300.41050.4061model_form_blend
predicted_SO1.27501.30601.2876model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date113
Season rows before report date113
Report year2026
Profile rows used40
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R1
RBI0
BB0
SO1
SF0
HBP0
season_avg0.272

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.4
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R2
Hitting_RBI2
Hitting_SAC0
Hitting_SF0
Hitting_SO3
Hitting_TB5
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260617_CLE@MIL
game_typefull
mlbID592885
playerID592885
playerNameChristian Yelich
posDH
startedTrue
startingPositionDH
teamMIL
teamID16
game_date2026-06-17
sl_k_percent29.1
sl_bb_percent9.3
sl_woba0.339
sl_xwoba0.298
sl_xba0.231
sl_xslg0.376
sl_sweet_spot_percent29.7
sl_barrel_batted_rate7.2
sl_hard_hit_percent38.7
sl_exit_velocity_avg88.8
sl_launch_angle_avg3.3
sl_whiff_percent31.1
sl_swing_percent45.3
Brice Turang (668930) · BATTER · 2B · Team MIL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 243
All-history rows before 20260618: 243
System season_avg: 0.2700
Data season_avg (2026 season-to-date): 0.2845
Diff (system - data): -0.0145
System opponent_avg: 0.4290

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2270.0000.000Hitting_2B0.2141.000-0.214-1.000
predicted_3B0.0300.0000.000Hitting_3B0.0410.000-0.0410.000
predicted_AB4.0803.0004.000Hitting_AB3.7614.000-0.761-1.000
predicted_AVG0.2340.0000.250Hitting_AVG0.2840.250-0.284-0.250
predicted_BB0.7120.0001.000Hitting_BB0.7570.000-0.7570.000
predicted_CS-0.0000.000BaseRunning_CS0.0370.000-0.0370.000
predicted_H0.9600.0001.000Hitting_H1.0701.000-1.070-1.000
predicted_HR0.1800.0000.000Hitting_HR0.1560.000-0.1560.000
predicted_OBP0.3220.0000.400Hitting_OBP0.4020.250-0.402-0.250
predicted_R0.8180.0001.000Hitting_R0.9090.000-0.9090.000
predicted_RBI0.6000.0001.000Hitting_RBI0.6711.000-0.671-1.000
predicted_SB-0.0000.000BaseRunning_SB0.1980.000-0.1980.000
predicted_SLG0.4450.0000.250Hitting_SLG0.4880.500-0.488-0.500
predicted_SO1.0913.0001.000Hitting_SO1.0492.0001.9511.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics4
Deboosted Metrics7
Better Metrics3
Worse Metrics8
Biggest Boostpredicted_SO: 1.0910 -> 3.0000 (boost 1.9090, worse)
Biggest Deboostpredicted_AB: 4.0800 -> 3.0000 (deboost -1.0800, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend32112predicted_SO: 1.0910 -> 1.1486 (boost 0.0576, worse)predicted_BB: 0.7120 -> 0.6316 (deboost -0.0804, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot44040predicted_R: 0.7753 -> 0.8290 (boost 0.0537, better)-Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling52332predicted_BB: 0.6433 -> 1.0000 (boost 0.3567, better)predicted_2B: 0.2367 -> 0.0000 (deboost -0.2367, worse)AB rounded to 4 (raw=4.08), rates preserved: AVG=0.244 HR/AB=0.049
5consistency_constraints11010predicted_R: 0.8290 -> 1.0000 (boost 0.1710, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context21111predicted_OBP: 0.3503 -> 0.4000 (boost 0.0497, better)predicted_SLG: 0.4650 -> 0.2500 (deboost -0.2150, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference61506predicted_SO: 1.0000 -> 3.0000 (boost 2.0000, worse)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final21111predicted_SLG: 0.2500 -> 0.4650 (boost 0.2150, better)predicted_OBP: 0.4000 -> 0.3503 (deboost -0.0497, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "668930",
  "player_name": "Brice Turang",
  "position": "2B",
  "team": "MIL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.227,
        "predicted_3B": 0.03,
        "predicted_AB": 4.08,
        "predicted_AVG": 0.234,
        "predicted_BB": 0.712,
        "predicted_H": 0.96,
        "predicted_HR": 0.18,
        "predicted_OBP": 0.322,
        "predicted_R": 0.818,
        "predicted_RBI": 0.6,
        "predicted_SLG": 0.445,
        "predicted_SO": 1.091
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2367,
        "predicted_3B": 0.0253,
        "predicted_AB": 4.039,
        "predicted_AVG": 0.237,
        "predicted_BB": 0.6316,
        "predicted_H": 0.96,
        "predicted_HBP": 0.003,
        "predicted_HR": 0.1918,
        "predicted_OBP": 0.3231,
        "predicted_R": 0.7753,
        "predicted_RBI": 0.6199,
        "predicted_SLG": 0.4555,
        "predicted_SO": 1.1486
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.227,
          "after": 0.2367,
          "delta": 0.0097,
          "percent_delta": 0.0427,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.03,
          "after": 0.0253,
          "delta": -0.0047,
          "percent_delta": -0.1567,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.08,
          "after": 4.039,
          "delta": -0.041,
          "percent_delta": -0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.234,
          "after": 0.237,
          "delta": 0.003,
          "percent_delta": 0.0128,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.712,
          "after": 0.6316,
          "delta": -0.0804,
          "percent_delta": -0.1129,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.96,
          "after": 0.96,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.18,
          "after": 0.1918,
          "delta": 0.0118,
          "percent_delta": 0.0656,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.322,
          "after": 0.3231,
          "delta": 0.0011,
          "percent_delta": 0.0034,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.818,
          "after": 0.7753,
          "delta": -0.0427,
          "percent_delta": -0.0522,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6,
          "after": 0.6199,
          "delta": 0.0199,
          "percent_delta": 0.0332,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.445,
          "after": 0.4555,
          "delta": 0.0105,
          "percent_delta": 0.0236,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.091,
          "after": 1.1486,
          "delta": 0.0576,
          "percent_delta": 0.0528,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.091,
          "after": 1.1486,
          "delta": 0.0576,
          "percent_delta": 0.0528,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.712,
          "after": 0.6316,
          "delta": -0.0804,
          "percent_delta": -0.1129,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 66
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2367,
        "predicted_3B": 0.0253,
        "predicted_AB": 4.039,
        "predicted_AVG": 0.2468,
        "predicted_BB": 0.6433,
        "predicted_H": 0.9969,
        "predicted_HBP": 0.003,
        "predicted_HR": 0.198,
        "predicted_OBP": 0.3503,
        "predicted_R": 0.829,
        "predicted_RBI": 0.6628,
        "predicted_SLG": 0.465,
        "predicted_SO": 1.1274
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2367,
          "after": 0.2367,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0253,
          "after": 0.0253,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.039,
          "after": 4.039,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.237,
          "after": 0.2468,
          "delta": 0.0098,
          "percent_delta": 0.0414,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.6316,
          "after": 0.6433,
          "delta": 0.0117,
          "percent_delta": 0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.96,
          "after": 0.9969,
          "delta": 0.0369,
          "percent_delta": 0.0384,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.003,
          "after": 0.003,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1918,
          "after": 0.198,
          "delta": 0.0062,
          "percent_delta": 0.0323,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3231,
          "after": 0.3503,
          "delta": 0.0272,
          "percent_delta": 0.0842,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.7753,
          "after": 0.829,
          "delta": 0.0537,
          "percent_delta": 0.0693,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6199,
          "after": 0.6628,
          "delta": 0.0429,
          "percent_delta": 0.0692,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4555,
          "after": 0.465,
          "delta": 0.0095,
          "percent_delta": 0.0209,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1486,
          "after": 1.1274,
          "delta": -0.0212,
          "percent_delta": -0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 4,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.7753,
          "after": 0.829,
          "delta": 0.0537,
          "percent_delta": 0.0693,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.08), rates preserved: AVG=0.244 HR/AB=0.049",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2367,
          "after": 0.0,
          "delta": -0.2367,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0253,
          "after": 0.0,
          "delta": -0.0253,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.039,
          "after": 4.0,
          "delta": -0.039,
          "percent_delta": -0.0097,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.6433,
          "after": 1.0,
          "delta": 0.3567,
          "percent_delta": 0.5545,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9969,
          "after": 1.0,
          "delta": 0.0031,
          "percent_delta": 0.0031,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.003,
          "after": 0.0,
          "delta": -0.003,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.198,
          "after": 0.0,
          "delta": -0.198,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6628,
          "after": 1.0,
          "delta": 0.3372,
          "percent_delta": 0.5088,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1274,
          "after": 1.0,
          "delta": -0.1274,
          "percent_delta": -0.113,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 2,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.6433,
          "after": 1.0,
          "delta": 0.3567,
          "percent_delta": 0.5545,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_2B",
          "before": 0.2367,
          "after": 0.0,
          "delta": -0.2367,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.829,
          "after": 1.0,
          "delta": 0.171,
          "percent_delta": 0.2063,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.829,
          "after": 1.0,
          "delta": 0.171,
          "percent_delta": 0.2063,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.4,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2468,
          "after": 0.25,
          "delta": 0.0032,
          "percent_delta": 0.013,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3503,
          "after": 0.4,
          "delta": 0.0497,
          "percent_delta": 0.1419,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.465,
          "after": 0.25,
          "delta": -0.215,
          "percent_delta": -0.4624,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3503,
          "after": 0.4,
          "delta": 0.0497,
          "percent_delta": 0.1419,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.465,
          "after": 0.25,
          "delta": -0.215,
          "percent_delta": -0.4624,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 1,
        "deboosted_metrics": 5,
        "better_metrics": 0,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2468,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3503,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.465,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2468,
          "delta": -0.0032,
          "percent_delta": -0.0128,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3503,
          "delta": -0.0497,
          "percent_delta": -0.1243,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.465,
          "delta": 0.215,
          "percent_delta": 0.86,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.465,
          "delta": 0.215,
          "percent_delta": 0.86,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3503,
          "delta": -0.0497,
          "percent_delta": -0.1243,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.227,
        "after": 0.0,
        "delta": -0.227,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.03,
        "after": 0.0,
        "delta": -0.03,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.08,
        "after": 3.0,
        "delta": -1.08,
        "percent_delta": -0.2647,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.234,
        "after": 0.2468,
        "delta": 0.0128,
        "percent_delta": 0.0547,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.712,
        "after": 0.0,
        "delta": -0.712,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.96,
        "after": 0.0,
        "delta": -0.96,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.18,
        "after": 0.0,
        "delta": -0.18,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.322,
        "after": 0.3503,
        "delta": 0.0283,
        "percent_delta": 0.0879,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.818,
        "after": 0.0,
        "delta": -0.818,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.6,
        "after": 0.0,
        "delta": -0.6,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.445,
        "after": 0.465,
        "delta": 0.02,
        "percent_delta": 0.0449,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.091,
        "after": 3.0,
        "delta": 1.909,
        "percent_delta": 1.7498,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 4,
      "deboosted_metrics": 7,
      "better_metrics": 3,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 1.091,
        "after": 3.0,
        "delta": 1.909,
        "percent_delta": 1.7498,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 4.08,
        "after": 3.0,
        "delta": -1.08,
        "percent_delta": -0.2647,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.227-
predicted_3B0.030-
predicted_AB4.080-
predicted_AVG0.234-
predicted_BB0.712-
predicted_H0.960-
predicted_HR0.180-
predicted_OBP0.322-
predicted_R0.818-
predicted_RBI0.600-
predicted_SLG0.445-
predicted_SO1.091-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2370.010
predicted_3B0.025-0.005
predicted_AB4.039-0.041
predicted_AVG0.2370.003
predicted_BB0.632-0.080
predicted_H0.9600.000
predicted_HBP0.003-
predicted_HR0.1920.012
predicted_OBP0.3230.001
predicted_R0.775-0.043
predicted_RBI0.6200.020
predicted_SLG0.4560.011
predicted_SO1.1490.058
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2370.000
predicted_3B0.0250.000
predicted_AB4.0390.000
predicted_AVG0.2470.010
predicted_BB0.6430.012
predicted_H0.9970.037
predicted_HBP0.0030.000
predicted_HR0.1980.006
predicted_OBP0.3500.027
predicted_R0.8290.054
predicted_RBI0.6630.043
predicted_SLG0.4650.010
predicted_SO1.127-0.021
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.08), rates preserved: AVG=0.244 HR/AB=0.049

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.237
predicted_3B0.000-0.025
predicted_AB4.000-0.039
predicted_AVG0.2500.003
predicted_BB1.0000.357
predicted_H1.0000.003
predicted_HR0.000-0.198
predicted_OBP0.4000.050
predicted_R1.0000.171
predicted_RBI1.0000.337
predicted_SLG0.250-0.215
predicted_SO1.000-0.127
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB0.000-1.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA3.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO3.0002.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 66
Reference playing time: 4.080
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-21.0004.0002.0000.0001.0002.0002.0001.0008.0000.19050.22730.42860.19050.04760.09520.04760.3810
last_100.2010-45.0009.0002.0000.0004.0009.0008.0003.00015.0000.20000.25000.51110.20000.08890.20000.06670.3333
season0.6066-248.00067.00015.0002.00011.00044.00054.00047.00072.0000.27020.38380.47980.27020.04440.17740.18950.2903
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2500
predicted_3B0.0190
predicted_AB3.9830
predicted_AVG0.2412
predicted_BB0.5220
predicted_H0.9600
predicted_HBP0.0030
predicted_HR0.2080
predicted_OBP0.3246
predicted_R0.7170
predicted_RBI0.6470
predicted_SLG0.4698
predicted_SO1.2270
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.22700.25000.2367model_form_blend
predicted_3B0.03000.01900.0253model_form_blend
predicted_AB4.08003.98304.0390model_form_blend
predicted_AVG0.23400.24120.2370model_form_blend
predicted_BB0.71200.52200.6316model_form_blend
predicted_H0.96000.96000.9600model_form_blend
predicted_HBP-0.00300.0030form_only
predicted_HR0.18000.20800.1918model_form_blend
predicted_OBP0.32200.32460.3231model_form_blend
predicted_R0.81800.71700.7753model_form_blend
predicted_RBI0.60000.64700.6199model_form_blend
predicted_SLG0.44500.46980.4555model_form_blend
predicted_SO1.09101.22701.1486model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date243
Season rows before report date243
Report year2026
Profile rows used66
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA3
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO3
SF0
HBP0
season_avg0.27

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB2
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_CLE@MIL
game_typefull
mlbID668930
playerID668930
playerNameBrice Turang
pos2B
startedTrue
startingPosition2B
teamMIL
teamID16
game_date2026-06-17
sl_k_percent24.7
sl_bb_percent15.8
sl_woba0.372
sl_xwoba0.363
sl_xba0.256
sl_xslg0.459
sl_sweet_spot_percent37.0
sl_barrel_batted_rate9.4
sl_hard_hit_percent45.3
sl_exit_velocity_avg90.8
sl_launch_angle_avg7.7
sl_whiff_percent21.1
sl_swing_percent40.8
Gary Sánchez (596142) · BATTER · C · Team MIL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 123
All-history rows before 20260618: 123
System season_avg: 0.2250
Data season_avg (2026 season-to-date): 0.2073
Diff (system - data): 0.0177
System opponent_avg: 0.2250
System season_avg diverges from 2026 season-to-date by 0.0177. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1000.0000.000Hitting_2B0.1140.000-0.1140.000
predicted_3B0.0250.0000.000Hitting_3B0.0410.000-0.0410.000
predicted_AB2.7752.0003.000Hitting_AB3.1381.000-1.1381.000
predicted_AVG0.2740.0000.333Hitting_AVG0.2070.000-0.2070.000
predicted_BB0.5251.0000.000Hitting_BB0.7070.0000.2931.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.7400.0001.000Hitting_H0.6500.000-0.6500.000
predicted_HR0.1700.0000.000Hitting_HR0.1710.000-0.1710.000
predicted_OBP0.3500.3330.333Hitting_OBP0.3650.000-0.0320.333
predicted_R0.5000.0001.000Hitting_R0.5770.000-0.5770.000
predicted_RBI0.4800.0001.000Hitting_RBI0.4960.000-0.4960.000
predicted_SLG0.5030.0000.333Hitting_SLG0.4330.000-0.4330.000
predicted_SO0.6502.0001.000Hitting_SO0.8210.0001.1792.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics5
Deboosted Metrics6
Better Metrics4
Worse Metrics7
Biggest Boostpredicted_SO: 0.6500 -> 2.0000 (boost 1.3500, worse)
Biggest Deboostpredicted_AB: 2.7750 -> 2.0000 (deboost -0.7750, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend42231predicted_SLG: 0.5030 -> 0.5258 (boost 0.0228, better)predicted_BB: 0.5250 -> 0.4608 (deboost -0.0642, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot33030predicted_OBP: 0.3563 -> 0.3843 (boost 0.0280, better)-Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling74334predicted_RBI: 0.5352 -> 1.0000 (boost 0.4648, better)predicted_BB: 0.4693 -> 0.0000 (deboost -0.4693, worse)AB rounded to 3 (raw=2.82), rates preserved: AVG=0.282 HR/AB=0.069
5consistency_constraints11010predicted_R: 0.5622 -> 1.0000 (boost 0.4378, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2818 -> 0.3330 (boost 0.0512, better)predicted_SLG: 0.5439 -> 0.3330 (deboost -0.2109, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference62415predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 3.0000 -> 2.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.3330 -> 0.5439 (boost 0.2109, better)predicted_AVG: 0.3330 -> 0.2818 (deboost -0.0512, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "596142",
  "player_name": "Gary Sánchez",
  "position": "C",
  "team": "MIL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.1,
        "predicted_3B": 0.025,
        "predicted_AB": 2.775,
        "predicted_AVG": 0.274,
        "predicted_BB": 0.525,
        "predicted_H": 0.74,
        "predicted_HR": 0.17,
        "predicted_OBP": 0.35,
        "predicted_R": 0.5,
        "predicted_RBI": 0.48,
        "predicted_SLG": 0.503,
        "predicted_SO": 0.65
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1127,
        "predicted_3B": 0.021,
        "predicted_AB": 2.8186,
        "predicted_AVG": 0.2757,
        "predicted_BB": 0.4608,
        "predicted_H": 0.765,
        "predicted_HBP": 0.03,
        "predicted_HR": 0.1886,
        "predicted_OBP": 0.3563,
        "predicted_R": 0.5258,
        "predicted_RBI": 0.5006,
        "predicted_SLG": 0.5258,
        "predicted_SO": 0.5953
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1,
          "after": 0.1127,
          "delta": 0.0127,
          "percent_delta": 0.127,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.025,
          "after": 0.021,
          "delta": -0.004,
          "percent_delta": -0.16,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.775,
          "after": 2.8186,
          "delta": 0.0436,
          "percent_delta": 0.0157,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.274,
          "after": 0.2757,
          "delta": 0.0017,
          "percent_delta": 0.0062,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.525,
          "after": 0.4608,
          "delta": -0.0642,
          "percent_delta": -0.1223,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.74,
          "after": 0.765,
          "delta": 0.025,
          "percent_delta": 0.0338,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.17,
          "after": 0.1886,
          "delta": 0.0186,
          "percent_delta": 0.1094,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.35,
          "after": 0.3563,
          "delta": 0.0063,
          "percent_delta": 0.018,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5,
          "after": 0.5258,
          "delta": 0.0258,
          "percent_delta": 0.0516,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.48,
          "after": 0.5006,
          "delta": 0.0206,
          "percent_delta": 0.0429,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.503,
          "after": 0.5258,
          "delta": 0.0228,
          "percent_delta": 0.0453,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.65,
          "after": 0.5953,
          "delta": -0.0547,
          "percent_delta": -0.0842,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 2,
        "deboosted_metrics": 2,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.503,
          "after": 0.5258,
          "delta": 0.0228,
          "percent_delta": 0.0453,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.525,
          "after": 0.4608,
          "delta": -0.0642,
          "percent_delta": -0.1223,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 40
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1127,
        "predicted_3B": 0.021,
        "predicted_AB": 2.8186,
        "predicted_AVG": 0.2818,
        "predicted_BB": 0.4693,
        "predicted_H": 0.7944,
        "predicted_HBP": 0.03,
        "predicted_HR": 0.1947,
        "predicted_OBP": 0.3843,
        "predicted_R": 0.5622,
        "predicted_RBI": 0.5352,
        "predicted_SLG": 0.5439,
        "predicted_SO": 0.5843
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1127,
          "after": 0.1127,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.021,
          "after": 0.021,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.8186,
          "after": 2.8186,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2757,
          "after": 0.2818,
          "delta": 0.0061,
          "percent_delta": 0.0221,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4608,
          "after": 0.4693,
          "delta": 0.0085,
          "percent_delta": 0.0184,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.765,
          "after": 0.7944,
          "delta": 0.0294,
          "percent_delta": 0.0384,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.03,
          "after": 0.03,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1886,
          "after": 0.1947,
          "delta": 0.0061,
          "percent_delta": 0.0323,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3563,
          "after": 0.3843,
          "delta": 0.028,
          "percent_delta": 0.0786,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5258,
          "after": 0.5622,
          "delta": 0.0364,
          "percent_delta": 0.0692,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5006,
          "after": 0.5352,
          "delta": 0.0346,
          "percent_delta": 0.0691,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5258,
          "after": 0.5439,
          "delta": 0.0181,
          "percent_delta": 0.0344,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5953,
          "after": 0.5843,
          "delta": -0.011,
          "percent_delta": -0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3563,
          "after": 0.3843,
          "delta": 0.028,
          "percent_delta": 0.0786,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.82), rates preserved: AVG=0.282 HR/AB=0.069",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1127,
          "after": 0.0,
          "delta": -0.1127,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.021,
          "after": 0.0,
          "delta": -0.021,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.8186,
          "after": 3.0,
          "delta": 0.1814,
          "percent_delta": 0.0644,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4693,
          "after": 0.0,
          "delta": -0.4693,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7944,
          "after": 1.0,
          "delta": 0.2056,
          "percent_delta": 0.2588,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.03,
          "after": 0.0,
          "delta": -0.03,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1947,
          "after": 0.0,
          "delta": -0.1947,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5352,
          "after": 1.0,
          "delta": 0.4648,
          "percent_delta": 0.8685,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5843,
          "after": 1.0,
          "delta": 0.4157,
          "percent_delta": 0.7114,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 4,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.5352,
          "after": 1.0,
          "delta": 0.4648,
          "percent_delta": 0.8685,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.4693,
          "after": 0.0,
          "delta": -0.4693,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5622,
          "after": 1.0,
          "delta": 0.4378,
          "percent_delta": 0.7787,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5622,
          "after": 1.0,
          "delta": 0.4378,
          "percent_delta": 0.7787,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2818,
          "after": 0.333,
          "delta": 0.0512,
          "percent_delta": 0.1817,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3843,
          "after": 0.333,
          "delta": -0.0513,
          "percent_delta": -0.1335,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5439,
          "after": 0.333,
          "delta": -0.2109,
          "percent_delta": -0.3878,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2818,
          "after": 0.333,
          "delta": 0.0512,
          "percent_delta": 0.1817,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.5439,
          "after": 0.333,
          "delta": -0.2109,
          "percent_delta": -0.3878,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 2.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 2.0,
          "delta": -1.0,
          "percent_delta": -0.3333,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 2.0,
          "delta": -1.0,
          "percent_delta": -0.3333,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 2.0,
        "predicted_AVG": 0.2818,
        "predicted_BB": 1.0,
        "predicted_C": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3843,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.5439,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2818,
          "delta": -0.0512,
          "percent_delta": -0.1537,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3843,
          "delta": 0.0513,
          "percent_delta": 0.1542,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.5439,
          "delta": 0.2109,
          "percent_delta": 0.6334,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.5439,
          "delta": 0.2109,
          "percent_delta": 0.6334,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2818,
          "delta": -0.0512,
          "percent_delta": -0.1537,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.025,
        "after": 0.0,
        "delta": -0.025,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.775,
        "after": 2.0,
        "delta": -0.775,
        "percent_delta": -0.2793,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.274,
        "after": 0.2818,
        "delta": 0.0078,
        "percent_delta": 0.0285,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.525,
        "after": 1.0,
        "delta": 0.475,
        "percent_delta": 0.9048,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.74,
        "after": 0.0,
        "delta": -0.74,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.17,
        "after": 0.0,
        "delta": -0.17,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.35,
        "after": 0.3843,
        "delta": 0.0343,
        "percent_delta": 0.098,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.5,
        "after": 0.0,
        "delta": -0.5,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.48,
        "after": 0.0,
        "delta": -0.48,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.503,
        "after": 0.5439,
        "delta": 0.0409,
        "percent_delta": 0.0813,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.65,
        "after": 2.0,
        "delta": 1.35,
        "percent_delta": 2.0769,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 5,
      "deboosted_metrics": 6,
      "better_metrics": 4,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.65,
        "after": 2.0,
        "delta": 1.35,
        "percent_delta": 2.0769,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 2.775,
        "after": 2.0,
        "delta": -0.775,
        "percent_delta": -0.2793,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.100-
predicted_3B0.025-
predicted_AB2.775-
predicted_AVG0.274-
predicted_BB0.525-
predicted_H0.740-
predicted_HR0.170-
predicted_OBP0.350-
predicted_R0.500-
predicted_RBI0.480-
predicted_SLG0.503-
predicted_SO0.650-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1130.013
predicted_3B0.021-0.004
predicted_AB2.8190.044
predicted_AVG0.2760.002
predicted_BB0.461-0.064
predicted_H0.7650.025
predicted_HBP0.030-
predicted_HR0.1890.019
predicted_OBP0.3560.006
predicted_R0.5260.026
predicted_RBI0.5010.021
predicted_SLG0.5260.023
predicted_SO0.595-0.055
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1130.000
predicted_3B0.0210.000
predicted_AB2.8190.000
predicted_AVG0.2820.006
predicted_BB0.4690.009
predicted_H0.7940.029
predicted_HBP0.0300.000
predicted_HR0.1950.006
predicted_OBP0.3840.028
predicted_R0.5620.036
predicted_RBI0.5350.035
predicted_SLG0.5440.018
predicted_SO0.584-0.011
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.82), rates preserved: AVG=0.282 HR/AB=0.069

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.113
predicted_3B0.000-0.021
predicted_AB3.0000.181
predicted_AVG0.3330.051
predicted_BB0.000-0.469
predicted_H1.0000.206
predicted_HR0.000-0.195
predicted_OBP0.333-0.051
predicted_R1.0000.438
predicted_RBI1.0000.465
predicted_SLG0.333-0.211
predicted_SO1.0000.416
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB2.000-1.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA3.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 40
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-14.0006.0001.0000.0002.0004.0004.0001.0000.0000.42860.46670.92860.42860.14290.28570.07140.0000
last_100.2010-22.0007.0001.0000.0002.0004.0005.0001.0003.0000.31820.34780.63640.31820.09090.18180.04540.1364
season0.6040-111.00025.0004.0001.0007.00019.00020.00021.00026.0000.22520.35820.46850.22520.06310.17120.18920.2342
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1320
predicted_3B0.0150
predicted_AB2.8850
predicted_AVG0.2783
predicted_BB0.3630
predicted_H0.8030
predicted_HBP0.0300
predicted_HR0.2170
predicted_OBP0.3660
predicted_R0.5650
predicted_RBI0.5320
predicted_SLG0.5604
predicted_SO0.5120
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.10000.13200.1127model_form_blend
predicted_3B0.02500.01500.0210model_form_blend
predicted_AB2.77502.88502.8186model_form_blend
predicted_AVG0.27400.27830.2757model_form_blend
predicted_BB0.52500.36300.4608model_form_blend
predicted_H0.74000.80300.7650model_form_blend
predicted_HBP-0.03000.0300form_only
predicted_HR0.17000.21700.1886model_form_blend
predicted_OBP0.35000.36600.3563model_form_blend
predicted_R0.50000.56500.5258model_form_blend
predicted_RBI0.48000.53200.5006model_form_blend
predicted_SLG0.50300.56040.5258model_form_blend
predicted_SO0.65000.51200.5953model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date123
Season rows before report date123
Report year2026
Profile rows used40
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA3
AB2
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO2
SF0
HBP0
season_avg0.225

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB1
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder9
Hitting_substitutionOrder1
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedPH
gameID20260617_CLE@MIL
game_typeph
mlbID596142
noteLined out for Hamilton, D in the 8th.
playerID596142
playerNameGary Sánchez
posDH
startedFalse
startingPositionPH
teamMIL
teamID16
game_date2026-06-17
sl_k_percent19.1
sl_bb_percent16.9
sl_woba0.37
sl_xwoba0.373
sl_xba0.235
sl_xslg0.473
sl_sweet_spot_percent27.1
sl_barrel_batted_rate10.6
sl_hard_hit_percent35.3
sl_exit_velocity_avg87.9
sl_launch_angle_avg15.3
sl_whiff_percent26.2
sl_swing_percent36.1
Jake Bauers (641343) · BATTER · RF · Team MIL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 195
All-history rows before 20260618: 195
System season_avg: 0.2740
Data season_avg (2026 season-to-date): 0.2834
Diff (system - data): -0.0094
System opponent_avg: 0.0000

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1970.0000.000Hitting_2B0.2050.000-0.2050.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.6402.0004.000Hitting_AB3.7283.000-1.728-1.000
predicted_AVG0.2400.5000.250Hitting_AVG0.2830.0000.2170.500
predicted_BB0.5081.0001.000Hitting_BB0.4311.0000.5690.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.8801.0001.000Hitting_H1.0560.000-0.0561.000
predicted_HR0.2001.0000.000Hitting_HR0.2000.0000.8001.000
predicted_OBP0.3480.6670.400Hitting_OBP0.3630.2500.3040.417
predicted_R0.6721.0001.000Hitting_R0.7031.0000.2970.000
predicted_RBI0.7002.0001.000Hitting_RBI0.7330.0001.2672.000
predicted_SLG0.4562.0000.250Hitting_SLG0.4990.0001.5012.000
predicted_SO0.9340.0001.000Hitting_SO0.9280.000-0.9280.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics10
Boosted Metrics7
Deboosted Metrics3
Better Metrics8
Worse Metrics2
Biggest Boostpredicted_RBI: 0.7000 -> 2.0000 (boost 1.3000, better)
Biggest Deboostpredicted_AB: 3.6400 -> 2.0000 (deboost -1.6400, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend32121predicted_SLG: 0.4560 -> 0.4680 (boost 0.0120, better)predicted_AB: 3.6400 -> 3.5480 (deboost -0.0920, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot33030predicted_RBI: 0.7234 -> 0.7735 (boost 0.0501, better)-Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling74343predicted_AB: 3.5480 -> 4.0000 (boost 0.4520, better)predicted_HR: 0.2159 -> 0.0000 (deboost -0.2159, worse)AB rounded to 4 (raw=3.64), rates preserved: AVG=0.245 HR/AB=0.059
5consistency_constraints11010predicted_R: 0.7113 -> 1.0000 (boost 0.2887, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context21111predicted_OBP: 0.3521 -> 0.4000 (boost 0.0479, better)predicted_SLG: 0.4854 -> 0.2500 (deboost -0.2354, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference42231predicted_HR: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 4.0000 -> 2.0000 (deboost -2.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final21111predicted_SLG: 0.2500 -> 0.4854 (boost 0.2354, better)predicted_OBP: 0.4000 -> 0.3521 (deboost -0.0479, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "641343",
  "player_name": "Jake Bauers",
  "position": "RF",
  "team": "MIL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.197,
        "predicted_3B": 0.0,
        "predicted_AB": 3.64,
        "predicted_AVG": 0.24,
        "predicted_BB": 0.508,
        "predicted_H": 0.88,
        "predicted_HR": 0.2,
        "predicted_OBP": 0.348,
        "predicted_R": 0.672,
        "predicted_RBI": 0.7,
        "predicted_SLG": 0.456,
        "predicted_SO": 0.934
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1824,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.548,
        "predicted_AVG": 0.2409,
        "predicted_BB": 0.5427,
        "predicted_H": 0.8583,
        "predicted_HBP": 0.085,
        "predicted_HR": 0.2092,
        "predicted_OBP": 0.3545,
        "predicted_R": 0.6653,
        "predicted_RBI": 0.7234,
        "predicted_SLG": 0.468,
        "predicted_SO": 0.9817
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.197,
          "after": 0.1824,
          "delta": -0.0146,
          "percent_delta": -0.0741,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.64,
          "after": 3.548,
          "delta": -0.092,
          "percent_delta": -0.0253,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.24,
          "after": 0.2409,
          "delta": 0.0009,
          "percent_delta": 0.0038,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.508,
          "after": 0.5427,
          "delta": 0.0347,
          "percent_delta": 0.0683,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.88,
          "after": 0.8583,
          "delta": -0.0217,
          "percent_delta": -0.0247,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2,
          "after": 0.2092,
          "delta": 0.0092,
          "percent_delta": 0.046,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.348,
          "after": 0.3545,
          "delta": 0.0065,
          "percent_delta": 0.0187,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.672,
          "after": 0.6653,
          "delta": -0.0067,
          "percent_delta": -0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.7,
          "after": 0.7234,
          "delta": 0.0234,
          "percent_delta": 0.0334,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.456,
          "after": 0.468,
          "delta": 0.012,
          "percent_delta": 0.0263,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.934,
          "after": 0.9817,
          "delta": 0.0477,
          "percent_delta": 0.0511,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.456,
          "after": 0.468,
          "delta": 0.012,
          "percent_delta": 0.0263,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.64,
          "after": 3.548,
          "delta": -0.092,
          "percent_delta": -0.0253,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 61
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1824,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.548,
        "predicted_AVG": 0.2512,
        "predicted_BB": 0.5527,
        "predicted_H": 0.8913,
        "predicted_HBP": 0.085,
        "predicted_HR": 0.2159,
        "predicted_OBP": 0.3521,
        "predicted_R": 0.7113,
        "predicted_RBI": 0.7735,
        "predicted_SLG": 0.4854,
        "predicted_SO": 0.9635
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1824,
          "after": 0.1824,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.548,
          "after": 3.548,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2409,
          "after": 0.2512,
          "delta": 0.0103,
          "percent_delta": 0.0428,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.5427,
          "after": 0.5527,
          "delta": 0.01,
          "percent_delta": 0.0184,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8583,
          "after": 0.8913,
          "delta": 0.033,
          "percent_delta": 0.0384,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.085,
          "after": 0.085,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2092,
          "after": 0.2159,
          "delta": 0.0067,
          "percent_delta": 0.032,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3545,
          "after": 0.3521,
          "delta": -0.0024,
          "percent_delta": -0.0068,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.6653,
          "after": 0.7113,
          "delta": 0.046,
          "percent_delta": 0.0691,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.7234,
          "after": 0.7735,
          "delta": 0.0501,
          "percent_delta": 0.0693,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.468,
          "after": 0.4854,
          "delta": 0.0174,
          "percent_delta": 0.0372,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9817,
          "after": 0.9635,
          "delta": -0.0182,
          "percent_delta": -0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.7234,
          "after": 0.7735,
          "delta": 0.0501,
          "percent_delta": 0.0693,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.64), rates preserved: AVG=0.245 HR/AB=0.059",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1824,
          "after": 0.0,
          "delta": -0.1824,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.548,
          "after": 4.0,
          "delta": 0.452,
          "percent_delta": 0.1274,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.5527,
          "after": 1.0,
          "delta": 0.4473,
          "percent_delta": 0.8093,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8913,
          "after": 1.0,
          "delta": 0.1087,
          "percent_delta": 0.122,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.085,
          "after": 0.0,
          "delta": -0.085,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.2159,
          "after": 0.0,
          "delta": -0.2159,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.7735,
          "after": 1.0,
          "delta": 0.2265,
          "percent_delta": 0.2928,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9635,
          "after": 1.0,
          "delta": 0.0365,
          "percent_delta": 0.0379,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 4,
        "deboosted_metrics": 3,
        "better_metrics": 4,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.548,
          "after": 4.0,
          "delta": 0.452,
          "percent_delta": 0.1274,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_HR",
          "before": 0.2159,
          "after": 0.0,
          "delta": -0.2159,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.7113,
          "after": 1.0,
          "delta": 0.2887,
          "percent_delta": 0.4059,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.7113,
          "after": 1.0,
          "delta": 0.2887,
          "percent_delta": 0.4059,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.4,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2512,
          "after": 0.25,
          "delta": -0.0012,
          "percent_delta": -0.0048,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3521,
          "after": 0.4,
          "delta": 0.0479,
          "percent_delta": 0.136,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4854,
          "after": 0.25,
          "delta": -0.2354,
          "percent_delta": -0.485,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3521,
          "after": 0.4,
          "delta": 0.0479,
          "percent_delta": 0.136,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4854,
          "after": 0.25,
          "delta": -0.2354,
          "percent_delta": -0.485,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 2.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_R": 1.0,
        "predicted_RBI": 2.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 2.0,
          "delta": -2.0,
          "percent_delta": -0.5,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 2,
        "deboosted_metrics": 2,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 2.0,
          "delta": -2.0,
          "percent_delta": -0.5,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 2.0,
        "predicted_AVG": 0.2512,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_OBP": 0.3521,
        "predicted_R": 1.0,
        "predicted_RBI": 2.0,
        "predicted_RF": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4854,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2512,
          "delta": 0.0012,
          "percent_delta": 0.0048,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3521,
          "delta": -0.0479,
          "percent_delta": -0.1197,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4854,
          "delta": 0.2354,
          "percent_delta": 0.9417,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4854,
          "delta": 0.2354,
          "percent_delta": 0.9417,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3521,
          "delta": -0.0479,
          "percent_delta": -0.1197,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.197,
        "after": 0.0,
        "delta": -0.197,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.64,
        "after": 2.0,
        "delta": -1.64,
        "percent_delta": -0.4505,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.24,
        "after": 0.2512,
        "delta": 0.0112,
        "percent_delta": 0.0467,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.508,
        "after": 1.0,
        "delta": 0.492,
        "percent_delta": 0.9685,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.88,
        "after": 1.0,
        "delta": 0.12,
        "percent_delta": 0.1364,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.2,
        "after": 1.0,
        "delta": 0.8,
        "percent_delta": 4.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.348,
        "after": 0.3521,
        "delta": 0.0041,
        "percent_delta": 0.0118,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.672,
        "after": 1.0,
        "delta": 0.328,
        "percent_delta": 0.4881,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.7,
        "after": 2.0,
        "delta": 1.3,
        "percent_delta": 1.8571,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.456,
        "after": 0.4854,
        "delta": 0.0294,
        "percent_delta": 0.0645,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.934,
        "after": 0.0,
        "delta": -0.934,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 7,
      "deboosted_metrics": 3,
      "better_metrics": 8,
      "worse_metrics": 2,
      "biggest_boost": {
        "metric": "predicted_RBI",
        "before": 0.7,
        "after": 2.0,
        "delta": 1.3,
        "percent_delta": 1.8571,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 3.64,
        "after": 2.0,
        "delta": -1.64,
        "percent_delta": -0.4505,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.197-
predicted_3B0.000-
predicted_AB3.640-
predicted_AVG0.240-
predicted_BB0.508-
predicted_H0.880-
predicted_HR0.200-
predicted_OBP0.348-
predicted_R0.672-
predicted_RBI0.700-
predicted_SLG0.456-
predicted_SO0.934-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.182-0.015
predicted_3B0.0000.000
predicted_AB3.548-0.092
predicted_AVG0.2410.001
predicted_BB0.5430.035
predicted_H0.858-0.022
predicted_HBP0.085-
predicted_HR0.2090.009
predicted_OBP0.3540.007
predicted_R0.665-0.007
predicted_RBI0.7230.023
predicted_SLG0.4680.012
predicted_SO0.9820.048
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1820.000
predicted_3B0.0000.000
predicted_AB3.5480.000
predicted_AVG0.2510.010
predicted_BB0.5530.010
predicted_H0.8910.033
predicted_HBP0.0850.000
predicted_HR0.2160.007
predicted_OBP0.352-0.002
predicted_R0.7110.046
predicted_RBI0.7730.050
predicted_SLG0.4850.017
predicted_SO0.964-0.018
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.64), rates preserved: AVG=0.245 HR/AB=0.059

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.182
predicted_3B0.000-0.000
predicted_AB4.0000.452
predicted_AVG0.250-0.001
predicted_BB1.0000.447
predicted_H1.0000.109
predicted_HR0.000-0.216
predicted_OBP0.4000.048
predicted_R1.0000.289
predicted_RBI1.0000.227
predicted_SLG0.250-0.235
predicted_SO1.0000.036
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB2.000-2.000
BB1.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR1.0001.000
PA3.000-
R1.0000.000
RBI2.0001.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 61
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0002.0000.0000.0001.0003.0002.0002.0007.0000.11760.25000.29410.11770.05880.17650.11770.4118
last_100.2010-30.0008.0002.0000.0003.00010.0009.00011.00011.0000.26670.47620.63330.26670.10000.33330.36670.3667
season0.6061-212.00058.00012.0000.00013.00046.00041.00031.00057.0000.27360.37400.51420.27360.06130.21700.14620.2689
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1620
predicted_3B0.0010
predicted_AB3.4200
predicted_AVG0.2421
predicted_BB0.5910
predicted_H0.8280
predicted_HBP0.0850
predicted_HR0.2220
predicted_OBP0.3635
predicted_R0.6560
predicted_RBI0.7560
predicted_SLG0.4848
predicted_SO1.0480
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.19700.16200.1824model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB3.64003.42003.5480model_form_blend
predicted_AVG0.24000.24210.2409model_form_blend
predicted_BB0.50800.59100.5427model_form_blend
predicted_H0.88000.82800.8583model_form_blend
predicted_HBP-0.08500.0850form_only
predicted_HR0.20000.22200.2092model_form_blend
predicted_OBP0.34800.36350.3545model_form_blend
predicted_R0.67200.65600.6653model_form_blend
predicted_RBI0.70000.75600.7234model_form_blend
predicted_SLG0.45600.48480.4680model_form_blend
predicted_SO0.93401.04800.9817model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date195
Season rows before report date195
Report year2026
Profile rows used61
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA3
AB2
H1
2B0
3B0
HR1
R1
RBI2
BB1
SO0
SF0
HBP0
season_avg0.274

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.0
Hitting_BB1
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B
gameID20260617_CLE@MIL
game_typefull
mlbID641343
playerID641343
playerNameJake Bauers
pos1B
startedTrue
startingPosition1B
teamMIL
teamID16
game_date2026-06-17
sl_k_percent23.2
sl_bb_percent12.8
sl_woba0.38
sl_xwoba0.362
sl_xba0.258
sl_xslg0.475
sl_sweet_spot_percent30.6
sl_barrel_batted_rate13.5
sl_hard_hit_percent54.8
sl_exit_velocity_avg92.6
sl_launch_angle_avg9.3
sl_whiff_percent24.8
sl_swing_percent41.0
Blake Perkins (663368) · BATTER · CF · Team MIL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 87
All-history rows before 20260618: 87
System season_avg: 0.1330
Data season_avg (2026 season-to-date): 0.1195
Diff (system - data): 0.0135
System opponent_avg: 0.1330

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1330.0000.000Hitting_2B0.1490.000-0.1490.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.5003.0003.000Hitting_AB2.5980.0000.4023.000
predicted_AVG0.2670.0000.333Hitting_AVG0.119--0.119-
predicted_BB0.2330.0000.000Hitting_BB0.3100.000-0.3100.000
predicted_CS-0.0000.000BaseRunning_CS0.0110.000-0.0110.000
predicted_H0.1900.0001.000Hitting_H0.3100.000-0.3100.000
predicted_HR0.0300.0000.000Hitting_HR0.0110.000-0.0110.000
predicted_OBP0.2670.0000.333Hitting_OBP0.226--0.226-
predicted_R0.3000.0000.000Hitting_R0.2990.000-0.2990.000
predicted_RBI0.1500.0000.000Hitting_RBI0.3100.000-0.3100.000
predicted_SLG0.3740.0000.333Hitting_SLG0.190--0.190-
predicted_SO0.6670.0001.000Hitting_SO0.7930.000-0.7930.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics1
Deboosted Metrics9
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_AB: 2.5000 -> 3.0000 (boost 0.5000, better)
Biggest Deboostpredicted_SO: 0.6670 -> 0.0000 (deboost -0.6670, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend54141predicted_H: 0.1900 -> 0.3270 (boost 0.1370, better)predicted_AVG: 0.2670 -> 0.2470 (deboost -0.0200, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.3781 -> 0.2565 (deboost -0.1216, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_AB: 2.5428 -> 3.0000 (boost 0.4572, better)predicted_H: 0.3396 -> 0.0000 (deboost -0.3396, worse)AB rounded to 3 (raw=2.54), rates preserved: AVG=0.134 HR/AB=0.022
5consistency_constraints21111predicted_H: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_R: 0.3841 -> 0.0000 (deboost -0.3841, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.1335 -> 0.3330 (boost 0.1995, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference20211-predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.1335 (deboost -0.1995, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "663368",
  "player_name": "Blake Perkins",
  "position": "CF",
  "team": "MIL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.133,
        "predicted_3B": 0.0,
        "predicted_AB": 2.5,
        "predicted_AVG": 0.267,
        "predicted_BB": 0.233,
        "predicted_H": 0.19,
        "predicted_HR": 0.03,
        "predicted_OBP": 0.267,
        "predicted_R": 0.3,
        "predicted_RBI": 0.15,
        "predicted_SLG": 0.374,
        "predicted_SO": 0.667
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1404,
        "predicted_3B": 0.0011,
        "predicted_AB": 2.5428,
        "predicted_AVG": 0.247,
        "predicted_BB": 0.2278,
        "predicted_H": 0.327,
        "predicted_HBP": 0.022,
        "predicted_HR": 0.0549,
        "predicted_OBP": 0.272,
        "predicted_R": 0.3592,
        "predicted_RBI": 0.2498,
        "predicted_SLG": 0.3781,
        "predicted_SO": 0.6618
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.133,
          "after": 0.1404,
          "delta": 0.0074,
          "percent_delta": 0.0556,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0011,
          "delta": 0.0011,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.5,
          "after": 2.5428,
          "delta": 0.0428,
          "percent_delta": 0.0171,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.267,
          "after": 0.247,
          "delta": -0.02,
          "percent_delta": -0.0749,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.233,
          "after": 0.2278,
          "delta": -0.0052,
          "percent_delta": -0.0223,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.19,
          "after": 0.327,
          "delta": 0.137,
          "percent_delta": 0.7211,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.03,
          "after": 0.0549,
          "delta": 0.0249,
          "percent_delta": 0.83,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.267,
          "after": 0.272,
          "delta": 0.005,
          "percent_delta": 0.0187,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3,
          "after": 0.3592,
          "delta": 0.0592,
          "percent_delta": 0.1973,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.15,
          "after": 0.2498,
          "delta": 0.0998,
          "percent_delta": 0.6653,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.374,
          "after": 0.3781,
          "delta": 0.0041,
          "percent_delta": 0.011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.667,
          "after": 0.6618,
          "delta": -0.0052,
          "percent_delta": -0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 4,
        "deboosted_metrics": 1,
        "better_metrics": 4,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.19,
          "after": 0.327,
          "delta": 0.137,
          "percent_delta": 0.7211,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.267,
          "after": 0.247,
          "delta": -0.02,
          "percent_delta": -0.0749,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 33
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1404,
        "predicted_3B": 0.0011,
        "predicted_AB": 2.5428,
        "predicted_AVG": 0.1335,
        "predicted_BB": 0.232,
        "predicted_H": 0.3396,
        "predicted_HBP": 0.022,
        "predicted_HR": 0.0567,
        "predicted_OBP": 0.206,
        "predicted_R": 0.3841,
        "predicted_RBI": 0.2671,
        "predicted_SLG": 0.2565,
        "predicted_SO": 0.6496
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1404,
          "after": 0.1404,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0011,
          "after": 0.0011,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.5428,
          "after": 2.5428,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.247,
          "after": 0.1335,
          "delta": -0.1135,
          "percent_delta": -0.4595,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2278,
          "after": 0.232,
          "delta": 0.0042,
          "percent_delta": 0.0184,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.327,
          "after": 0.3396,
          "delta": 0.0126,
          "percent_delta": 0.0385,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.022,
          "after": 0.022,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0549,
          "after": 0.0567,
          "delta": 0.0018,
          "percent_delta": 0.0328,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.272,
          "after": 0.206,
          "delta": -0.066,
          "percent_delta": -0.2426,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3592,
          "after": 0.3841,
          "delta": 0.0249,
          "percent_delta": 0.0693,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2498,
          "after": 0.2671,
          "delta": 0.0173,
          "percent_delta": 0.0693,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3781,
          "after": 0.2565,
          "delta": -0.1216,
          "percent_delta": -0.3216,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6618,
          "after": 0.6496,
          "delta": -0.0122,
          "percent_delta": -0.0184,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3781,
          "after": 0.2565,
          "delta": -0.1216,
          "percent_delta": -0.3216,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.54), rates preserved: AVG=0.134 HR/AB=0.022",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1404,
          "after": 0.0,
          "delta": -0.1404,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0011,
          "after": 0.0,
          "delta": -0.0011,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.5428,
          "after": 3.0,
          "delta": 0.4572,
          "percent_delta": 0.1798,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.232,
          "after": 0.0,
          "delta": -0.232,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.3396,
          "after": 0.0,
          "delta": -0.3396,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.022,
          "after": 0.0,
          "delta": -0.022,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0567,
          "after": 0.0,
          "delta": -0.0567,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2671,
          "after": 0.0,
          "delta": -0.2671,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6496,
          "after": 1.0,
          "delta": 0.3504,
          "percent_delta": 0.5394,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.5428,
          "after": 3.0,
          "delta": 0.4572,
          "percent_delta": 0.1798,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 0.3396,
          "after": 0.0,
          "delta": -0.3396,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3841,
          "after": 0.0,
          "delta": -0.3841,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3841,
          "after": 0.0,
          "delta": -0.3841,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1335,
          "after": 0.333,
          "delta": 0.1995,
          "percent_delta": 1.4944,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.206,
          "after": 0.333,
          "delta": 0.127,
          "percent_delta": 0.6165,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2565,
          "after": 0.333,
          "delta": 0.0765,
          "percent_delta": 0.2982,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1335,
          "after": 0.333,
          "delta": 0.1995,
          "percent_delta": 1.4944,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.1335,
        "predicted_BB": 0.0,
        "predicted_CF": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.206,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.2565,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1335,
          "delta": -0.1995,
          "percent_delta": -0.599,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.206,
          "delta": -0.127,
          "percent_delta": -0.3814,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.2565,
          "delta": -0.0765,
          "percent_delta": -0.2298,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1335,
          "delta": -0.1995,
          "percent_delta": -0.599,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.133,
        "after": 0.0,
        "delta": -0.133,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.5,
        "after": 3.0,
        "delta": 0.5,
        "percent_delta": 0.2,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.267,
        "after": 0.1335,
        "delta": -0.1335,
        "percent_delta": -0.5,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.233,
        "after": 0.0,
        "delta": -0.233,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.19,
        "after": 0.0,
        "delta": -0.19,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.03,
        "after": 0.0,
        "delta": -0.03,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_OBP",
        "before": 0.267,
        "after": 0.206,
        "delta": -0.061,
        "percent_delta": -0.2285,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.3,
        "after": 0.0,
        "delta": -0.3,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.15,
        "after": 0.0,
        "delta": -0.15,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.374,
        "after": 0.2565,
        "delta": -0.1175,
        "percent_delta": -0.3142,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.667,
        "after": 0.0,
        "delta": -0.667,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 1,
      "deboosted_metrics": 9,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 2.5,
        "after": 3.0,
        "delta": 0.5,
        "percent_delta": 0.2,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.667,
        "after": 0.0,
        "delta": -0.667,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.133-
predicted_3B0.000-
predicted_AB2.500-
predicted_AVG0.267-
predicted_BB0.233-
predicted_H0.190-
predicted_HR0.030-
predicted_OBP0.267-
predicted_R0.300-
predicted_RBI0.150-
predicted_SLG0.374-
predicted_SO0.667-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1400.007
predicted_3B0.0010.001
predicted_AB2.5430.043
predicted_AVG0.247-0.020
predicted_BB0.228-0.005
predicted_H0.3270.137
predicted_HBP0.022-
predicted_HR0.0550.025
predicted_OBP0.2720.005
predicted_R0.3590.059
predicted_RBI0.2500.100
predicted_SLG0.3780.004
predicted_SO0.662-0.005
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1400.000
predicted_3B0.0010.000
predicted_AB2.5430.000
predicted_AVG0.134-0.113
predicted_BB0.2320.004
predicted_H0.3400.013
predicted_HBP0.0220.000
predicted_HR0.0570.002
predicted_OBP0.206-0.066
predicted_R0.3840.025
predicted_RBI0.2670.017
predicted_SLG0.257-0.122
predicted_SO0.650-0.012
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.54), rates preserved: AVG=0.134 HR/AB=0.022

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H0.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0001.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.140
predicted_3B0.000-0.001
predicted_AB3.0000.457
predicted_AVG0.3330.200
predicted_BB0.000-0.232
predicted_H1.0000.660
predicted_HR0.000-0.057
predicted_OBP0.3330.127
predicted_R0.000-0.384
predicted_RBI0.000-0.267
predicted_SLG0.3330.077
predicted_SO1.0000.350
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA3.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 33
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-10.0004.0001.0000.0001.0003.0004.0001.0002.0000.40000.45450.80000.40000.10000.30000.10000.2000
last_100.2010-20.0004.0001.0000.0001.0003.0004.0001.0006.0000.20000.23810.40000.20000.05000.15000.05000.3000
season0.6033-75.00010.0004.0000.0001.00010.0009.0007.00020.0000.13330.21690.22670.13330.01330.13330.09330.2667
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1530
predicted_3B0.0030
predicted_AB2.6150
predicted_AVG0.2134
predicted_BB0.2190
predicted_H0.5580
predicted_HBP0.0220
predicted_HR0.0970
predicted_OBP0.2805
predicted_R0.4590
predicted_RBI0.4180
predicted_SLG0.3850
predicted_SO0.6530
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.13300.15300.1404model_form_blend
predicted_3B0.00000.00300.0011model_form_blend
predicted_AB2.50002.61502.5428model_form_blend
predicted_AVG0.26700.21340.2470model_form_blend
predicted_BB0.23300.21900.2278model_form_blend
predicted_H0.19000.55800.3270model_form_blend
predicted_HBP-0.02200.0220form_only
predicted_HR0.03000.09700.0549model_form_blend
predicted_OBP0.26700.28050.2720model_form_blend
predicted_R0.30000.45900.3592model_form_blend
predicted_RBI0.15000.41800.2498model_form_blend
predicted_SLG0.37400.38500.3781model_form_blend
predicted_SO0.66700.65300.6618model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date87
Season rows before report date87
Report year2026
Profile rows used33
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA3
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.133

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder7
Hitting_substitutionOrder2
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedPR-CF
gameID20260617_CLE@MIL
game_typeph
mlbID663368
noteRan for Vaughn in the 8th.
playerID663368
playerNameBlake Perkins
posCF
startedFalse
startingPositionPR
teamMIL
teamID16
game_date2026-06-17
sl_k_percent23.3
sl_bb_percent10.5
sl_woba0.219
sl_xwoba0.268
sl_xba0.194
sl_xslg0.296
sl_sweet_spot_percent21.4
sl_barrel_batted_rate5.4
sl_hard_hit_percent35.7
sl_exit_velocity_avg86.5
sl_launch_angle_avg13.4
sl_whiff_percent23.4
sl_swing_percent43.4
Cooper Pratt (806198) · BATTER · SS · Team MIL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 2
All-history rows before 20260618: 2
System season_avg: 0.2860
Data season_avg (2026 season-to-date): 0.2857
Diff (system - data): 0.0003
System opponent_avg: 0.2860

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0000.0000.000Hitting_2B0.0000.0000.0000.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.5003.0004.000Hitting_AB3.5004.000-0.500-1.000
predicted_AVG0.2470.0000.250Hitting_AVG0.2860.500-0.286-0.500
predicted_BB0.0000.0000.000Hitting_BB0.0000.0000.0000.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.8000.0001.000Hitting_H1.0002.000-1.000-2.000
predicted_HR0.1000.0000.000Hitting_HR0.0000.0000.0000.000
predicted_OBP0.3090.0000.250Hitting_OBP0.2860.500-0.286-0.500
predicted_R0.5000.0001.000Hitting_R0.5001.000-0.500-1.000
predicted_RBI0.4300.0001.000Hitting_RBI0.5001.000-0.500-1.000
predicted_SLG0.3800.0000.250Hitting_SLG0.2860.500-0.286-0.500
predicted_SO1.0003.0001.000Hitting_SO1.0002.0002.0001.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics8
Boosted Metrics1
Deboosted Metrics7
Better Metrics0
Worse Metrics8
Biggest Boostpredicted_SO: 1.0000 -> 3.0000 (boost 2.0000, worse)
Biggest Deboostpredicted_H: 0.8000 -> 0.0000 (deboost -0.8000, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend22020predicted_AB: 3.5000 -> 3.5630 (boost 0.0630, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3088 -> 0.2548 (deboost -0.0540, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling53232predicted_RBI: 0.4773 -> 1.0000 (boost 0.5227, better)predicted_HR: 0.1044 -> 0.0000 (deboost -0.1044, worse)AB rounded to 4 (raw=3.56), rates preserved: AVG=0.244 HR/AB=0.029
5consistency_constraints11010predicted_R: 0.5350 -> 1.0000 (boost 0.4650, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context21111predicted_AVG: 0.2441 -> 0.2500 (boost 0.0059, better)predicted_SLG: 0.3424 -> 0.2500 (deboost -0.0924, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference51405predicted_SO: 1.0000 -> 3.0000 (boost 2.0000, worse)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final21111predicted_SLG: 0.2500 -> 0.3424 (boost 0.0924, better)predicted_AVG: 0.2500 -> 0.2441 (deboost -0.0059, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "806198",
  "player_name": "Cooper Pratt",
  "position": "SS",
  "team": "MIL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.5,
        "predicted_AVG": 0.247,
        "predicted_BB": 0.0,
        "predicted_H": 0.8,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.309,
        "predicted_R": 0.5,
        "predicted_RBI": 0.43,
        "predicted_SLG": 0.38,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0319,
        "predicted_3B": 0.0026,
        "predicted_AB": 3.563,
        "predicted_AVG": 0.2492,
        "predicted_BB": 0.0502,
        "predicted_H": 0.8375,
        "predicted_HBP": 0.028,
        "predicted_HR": 0.1011,
        "predicted_OBP": 0.3088,
        "predicted_R": 0.5004,
        "predicted_RBI": 0.4464,
        "predicted_SLG": 0.3813,
        "predicted_SO": 0.9753
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0319,
          "delta": 0.0319,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0026,
          "delta": 0.0026,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.5,
          "after": 3.563,
          "delta": 0.063,
          "percent_delta": 0.018,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.247,
          "after": 0.2492,
          "delta": 0.0022,
          "percent_delta": 0.0089,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0502,
          "delta": 0.0502,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8,
          "after": 0.8375,
          "delta": 0.0375,
          "percent_delta": 0.0469,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.1011,
          "delta": 0.0011,
          "percent_delta": 0.011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.309,
          "after": 0.3088,
          "delta": -0.0002,
          "percent_delta": -0.0006,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5,
          "after": 0.5004,
          "delta": 0.0004,
          "percent_delta": 0.0008,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.43,
          "after": 0.4464,
          "delta": 0.0164,
          "percent_delta": 0.0381,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.38,
          "after": 0.3813,
          "delta": 0.0013,
          "percent_delta": 0.0034,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.9753,
          "delta": -0.0247,
          "percent_delta": -0.0247,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.5,
          "after": 3.563,
          "delta": 0.063,
          "percent_delta": 0.018,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 2,
        "last_10": 2,
        "season": 2
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0319,
        "predicted_3B": 0.0026,
        "predicted_AB": 3.563,
        "predicted_AVG": 0.2441,
        "predicted_BB": 0.0511,
        "predicted_H": 0.8697,
        "predicted_HBP": 0.028,
        "predicted_HR": 0.1044,
        "predicted_OBP": 0.2548,
        "predicted_R": 0.535,
        "predicted_RBI": 0.4773,
        "predicted_SLG": 0.3424,
        "predicted_SO": 0.9573
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0319,
          "after": 0.0319,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0026,
          "after": 0.0026,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.563,
          "after": 3.563,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2492,
          "after": 0.2441,
          "delta": -0.0051,
          "percent_delta": -0.0205,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0502,
          "after": 0.0511,
          "delta": 0.0009,
          "percent_delta": 0.0179,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8375,
          "after": 0.8697,
          "delta": 0.0322,
          "percent_delta": 0.0384,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.028,
          "after": 0.028,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1011,
          "after": 0.1044,
          "delta": 0.0033,
          "percent_delta": 0.0326,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3088,
          "after": 0.2548,
          "delta": -0.054,
          "percent_delta": -0.1749,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5004,
          "after": 0.535,
          "delta": 0.0346,
          "percent_delta": 0.0691,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4464,
          "after": 0.4773,
          "delta": 0.0309,
          "percent_delta": 0.0692,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3813,
          "after": 0.3424,
          "delta": -0.0389,
          "percent_delta": -0.102,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9753,
          "after": 0.9573,
          "delta": -0.018,
          "percent_delta": -0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3088,
          "after": 0.2548,
          "delta": -0.054,
          "percent_delta": -0.1749,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.56), rates preserved: AVG=0.244 HR/AB=0.029",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0319,
          "after": 0.0,
          "delta": -0.0319,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0026,
          "after": 0.0,
          "delta": -0.0026,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.563,
          "after": 4.0,
          "delta": 0.437,
          "percent_delta": 0.1226,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0511,
          "after": 0.0,
          "delta": -0.0511,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8697,
          "after": 1.0,
          "delta": 0.1303,
          "percent_delta": 0.1498,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.028,
          "after": 0.0,
          "delta": -0.028,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1044,
          "after": 0.0,
          "delta": -0.1044,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4773,
          "after": 1.0,
          "delta": 0.5227,
          "percent_delta": 1.0951,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9573,
          "after": 1.0,
          "delta": 0.0427,
          "percent_delta": 0.0446,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 3,
        "deboosted_metrics": 2,
        "better_metrics": 3,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.4773,
          "after": 1.0,
          "delta": 0.5227,
          "percent_delta": 1.0951,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_HR",
          "before": 0.1044,
          "after": 0.0,
          "delta": -0.1044,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.535,
          "after": 1.0,
          "delta": 0.465,
          "percent_delta": 0.8692,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.535,
          "after": 1.0,
          "delta": 0.465,
          "percent_delta": 0.8692,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2441,
          "after": 0.25,
          "delta": 0.0059,
          "percent_delta": 0.0242,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2548,
          "after": 0.25,
          "delta": -0.0048,
          "percent_delta": -0.0188,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3424,
          "after": 0.25,
          "delta": -0.0924,
          "percent_delta": -0.2699,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2441,
          "after": 0.25,
          "delta": 0.0059,
          "percent_delta": 0.0242,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3424,
          "after": 0.25,
          "delta": -0.0924,
          "percent_delta": -0.2699,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 1,
        "deboosted_metrics": 4,
        "better_metrics": 0,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2441,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2548,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3424,
        "predicted_SO": 3.0,
        "predicted_SS": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2441,
          "delta": -0.0059,
          "percent_delta": -0.0237,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2548,
          "delta": 0.0048,
          "percent_delta": 0.0191,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3424,
          "delta": 0.0924,
          "percent_delta": 0.3694,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3424,
          "delta": 0.0924,
          "percent_delta": 0.3694,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2441,
          "delta": -0.0059,
          "percent_delta": -0.0237,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.5,
        "after": 3.0,
        "delta": -0.5,
        "percent_delta": -0.1429,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.247,
        "after": 0.2441,
        "delta": -0.0029,
        "percent_delta": -0.0117,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.8,
        "after": 0.0,
        "delta": -0.8,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.309,
        "after": 0.2548,
        "delta": -0.0542,
        "percent_delta": -0.1754,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.5,
        "after": 0.0,
        "delta": -0.5,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.43,
        "after": 0.0,
        "delta": -0.43,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.38,
        "after": 0.3424,
        "delta": -0.0376,
        "percent_delta": -0.0989,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 3.0,
        "delta": 2.0,
        "percent_delta": 2.0,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 8,
      "boosted_metrics": 1,
      "deboosted_metrics": 7,
      "better_metrics": 0,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 3.0,
        "delta": 2.0,
        "percent_delta": 2.0,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.8,
        "after": 0.0,
        "delta": -0.8,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.000-
predicted_3B0.000-
predicted_AB3.500-
predicted_AVG0.247-
predicted_BB0.000-
predicted_H0.800-
predicted_HR0.100-
predicted_OBP0.309-
predicted_R0.500-
predicted_RBI0.430-
predicted_SLG0.380-
predicted_SO1.000-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.0320.032
predicted_3B0.0030.003
predicted_AB3.5630.063
predicted_AVG0.2490.002
predicted_BB0.0500.050
predicted_H0.8380.037
predicted_HBP0.028-
predicted_HR0.1010.001
predicted_OBP0.309-0.000
predicted_R0.5000.000
predicted_RBI0.4460.016
predicted_SLG0.3810.001
predicted_SO0.975-0.025
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0320.000
predicted_3B0.0030.000
predicted_AB3.5630.000
predicted_AVG0.244-0.005
predicted_BB0.0510.001
predicted_H0.8700.032
predicted_HBP0.0280.000
predicted_HR0.1040.003
predicted_OBP0.255-0.054
predicted_R0.5350.035
predicted_RBI0.4770.031
predicted_SLG0.342-0.039
predicted_SO0.957-0.018
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.56), rates preserved: AVG=0.244 HR/AB=0.029

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.032
predicted_3B0.000-0.003
predicted_AB4.0000.437
predicted_AVG0.2500.006
predicted_BB0.000-0.051
predicted_H1.0000.130
predicted_HR0.000-0.104
predicted_OBP0.250-0.005
predicted_R1.0000.465
predicted_RBI1.0000.523
predicted_SLG0.250-0.092
predicted_SO1.0000.043
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA3.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO3.0002.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 2
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.202-7.0002.0000.0000.0000.0001.0001.0000.0002.0000.28570.28570.28570.28570.00000.14290.00000.2857
last_100.202-7.0002.0000.0000.0000.0001.0001.0000.0002.0000.28570.28570.28570.28570.00000.14290.00000.2857
season0.602-7.0002.0000.0000.0000.0001.0001.0000.0002.0000.28570.28570.28570.28570.00000.14290.00000.2857
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1500
predicted_3B0.0120
predicted_AB3.7960
predicted_AVG0.2572
predicted_BB0.2360
predicted_H0.9760
predicted_HBP0.0280
predicted_HR0.1050
predicted_OBP0.3082
predicted_R0.5020
predicted_RBI0.5070
predicted_SLG0.3863
predicted_SO0.8840
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.00000.15000.0319model_form_blend
predicted_3B0.00000.01200.0026model_form_blend
predicted_AB3.50003.79603.5630model_form_blend
predicted_AVG0.24700.25720.2492model_form_blend
predicted_BB0.00000.23600.0502model_form_blend
predicted_H0.80000.97600.8375model_form_blend
predicted_HBP-0.02800.0280form_only
predicted_HR0.10000.10500.1011model_form_blend
predicted_OBP0.30900.30820.3088model_form_blend
predicted_R0.50000.50200.5004model_form_blend
predicted_RBI0.43000.50700.4464model_form_blend
predicted_SLG0.38000.38630.3813model_form_blend
predicted_SO1.00000.88400.9753model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date2
Season rows before report date2
Report year2026
Profile rows used2
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA3
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO3
SF0
HBP0
season_avg0.286

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB1
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.5
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB2
Hitting_battingOrder8
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedSS
gameID20260617_CLE@MIL
game_typefull
mlbID806198
playerID806198
playerNameCooper Pratt
posSS
startedTrue
startingPositionSS
teamMIL
teamID16
game_date2026-06-17
sl_k_percent28.6
sl_bb_percent0.0
sl_woba0.255
sl_xwoba0.188
sl_xba0.202
sl_xslg0.225
sl_sweet_spot_percent20.0
sl_barrel_batted_rate0.0
sl_hard_hit_percent40.0
sl_exit_velocity_avg87.8
sl_launch_angle_avg-0.1
sl_whiff_percent31.3
sl_swing_percent53.3
Joey Ortiz (687401) · BATTER · 3B · Team MIL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 152
All-history rows before 20260618: 152
System season_avg: 0.2070
Data season_avg (2026 season-to-date): 0.2054
Diff (system - data): 0.0016
System opponent_avg: 0.2070

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1000.0000.000Hitting_2B0.0660.000-0.0660.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.9003.0003.000Hitting_AB2.9140.0000.0863.000
predicted_AVG0.2710.0000.333Hitting_AVG0.205--0.205-
predicted_BB0.3800.0000.000Hitting_BB0.4010.000-0.4010.000
predicted_CS-0.0000.000BaseRunning_CS0.0720.000-0.0720.000
predicted_H0.5900.0001.000Hitting_H0.5990.000-0.5990.000
predicted_HR0.0500.0000.000Hitting_HR0.0260.000-0.0260.000
predicted_OBP0.3100.0000.333Hitting_OBP0.297--0.297-
predicted_R0.3400.0000.000Hitting_R0.3490.000-0.3490.000
predicted_RBI0.2700.0000.000Hitting_RBI0.2760.000-0.2760.000
predicted_SLG0.3390.0000.333Hitting_SLG0.255--0.255-
predicted_SO0.5400.0001.000Hitting_SO0.6180.000-0.6180.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics1
Deboosted Metrics9
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_AB: 2.9000 -> 3.0000 (boost 0.1000, better)
Biggest Deboostpredicted_H: 0.5900 -> 0.0000 (deboost -0.5900, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend42222predicted_AB: 2.9000 -> 2.9806 (boost 0.0806, better)predicted_AVG: 0.2710 -> 0.2597 (deboost -0.0113, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_AVG: 0.2597 -> 0.2286 (deboost -0.0311, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling52314predicted_SO: 0.5081 -> 1.0000 (boost 0.4919, worse)predicted_BB: 0.3528 -> 0.0000 (deboost -0.3528, worse)AB rounded to 3 (raw=2.98), rates preserved: AVG=0.229 HR/AB=0.014
5consistency_constraints10101-predicted_R: 0.3605 -> 0.0000 (deboost -0.3605, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.2286 -> 0.3330 (boost 0.1044, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference20211-predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.2286 (deboost -0.1044, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "687401",
  "player_name": "Joey Ortiz",
  "position": "3B",
  "team": "MIL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.1,
        "predicted_3B": 0.0,
        "predicted_AB": 2.9,
        "predicted_AVG": 0.271,
        "predicted_BB": 0.38,
        "predicted_H": 0.59,
        "predicted_HR": 0.05,
        "predicted_OBP": 0.31,
        "predicted_R": 0.34,
        "predicted_RBI": 0.27,
        "predicted_SLG": 0.339,
        "predicted_SO": 0.54
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1263,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.9806,
        "predicted_AVG": 0.2597,
        "predicted_BB": 0.3464,
        "predicted_H": 0.6561,
        "predicted_HBP": 0.004,
        "predicted_HR": 0.0407,
        "predicted_OBP": 0.3097,
        "predicted_R": 0.3372,
        "predicted_RBI": 0.2696,
        "predicted_SLG": 0.3328,
        "predicted_SO": 0.5177
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1,
          "after": 0.1263,
          "delta": 0.0263,
          "percent_delta": 0.263,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9,
          "after": 2.9806,
          "delta": 0.0806,
          "percent_delta": 0.0278,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.271,
          "after": 0.2597,
          "delta": -0.0113,
          "percent_delta": -0.0417,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.38,
          "after": 0.3464,
          "delta": -0.0336,
          "percent_delta": -0.0884,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.59,
          "after": 0.6561,
          "delta": 0.0661,
          "percent_delta": 0.112,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.05,
          "after": 0.0407,
          "delta": -0.0093,
          "percent_delta": -0.186,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.31,
          "after": 0.3097,
          "delta": -0.0003,
          "percent_delta": -0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.34,
          "after": 0.3372,
          "delta": -0.0028,
          "percent_delta": -0.0082,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.27,
          "after": 0.2696,
          "delta": -0.0004,
          "percent_delta": -0.0015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.339,
          "after": 0.3328,
          "delta": -0.0062,
          "percent_delta": -0.0183,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.54,
          "after": 0.5177,
          "delta": -0.0223,
          "percent_delta": -0.0413,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 2,
        "deboosted_metrics": 2,
        "better_metrics": 2,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.9,
          "after": 2.9806,
          "delta": 0.0806,
          "percent_delta": 0.0278,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.271,
          "after": 0.2597,
          "delta": -0.0113,
          "percent_delta": -0.0417,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 50
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1263,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.9806,
        "predicted_AVG": 0.2286,
        "predicted_BB": 0.3528,
        "predicted_H": 0.6813,
        "predicted_HBP": 0.004,
        "predicted_HR": 0.042,
        "predicted_OBP": 0.3102,
        "predicted_R": 0.3605,
        "predicted_RBI": 0.2883,
        "predicted_SLG": 0.3138,
        "predicted_SO": 0.5081
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1263,
          "after": 0.1263,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9806,
          "after": 2.9806,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2597,
          "after": 0.2286,
          "delta": -0.0311,
          "percent_delta": -0.1198,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3464,
          "after": 0.3528,
          "delta": 0.0064,
          "percent_delta": 0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6561,
          "after": 0.6813,
          "delta": 0.0252,
          "percent_delta": 0.0384,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.004,
          "after": 0.004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0407,
          "after": 0.042,
          "delta": 0.0013,
          "percent_delta": 0.0319,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3097,
          "after": 0.3102,
          "delta": 0.0005,
          "percent_delta": 0.0016,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3372,
          "after": 0.3605,
          "delta": 0.0233,
          "percent_delta": 0.0691,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2696,
          "after": 0.2883,
          "delta": 0.0187,
          "percent_delta": 0.0694,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3328,
          "after": 0.3138,
          "delta": -0.019,
          "percent_delta": -0.0571,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5177,
          "after": 0.5081,
          "delta": -0.0096,
          "percent_delta": -0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2597,
          "after": 0.2286,
          "delta": -0.0311,
          "percent_delta": -0.1198,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.98), rates preserved: AVG=0.229 HR/AB=0.014",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1263,
          "after": 0.0,
          "delta": -0.1263,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9806,
          "after": 3.0,
          "delta": 0.0194,
          "percent_delta": 0.0065,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3528,
          "after": 0.0,
          "delta": -0.3528,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6813,
          "after": 1.0,
          "delta": 0.3187,
          "percent_delta": 0.4678,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.004,
          "after": 0.0,
          "delta": -0.004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.042,
          "after": 0.0,
          "delta": -0.042,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2883,
          "after": 0.0,
          "delta": -0.2883,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5081,
          "after": 1.0,
          "delta": 0.4919,
          "percent_delta": 0.9681,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 2,
        "deboosted_metrics": 3,
        "better_metrics": 1,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.5081,
          "after": 1.0,
          "delta": 0.4919,
          "percent_delta": 0.9681,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3528,
          "after": 0.0,
          "delta": -0.3528,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3605,
          "after": 0.0,
          "delta": -0.3605,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3605,
          "after": 0.0,
          "delta": -0.3605,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2286,
          "after": 0.333,
          "delta": 0.1044,
          "percent_delta": 0.4567,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3102,
          "after": 0.333,
          "delta": 0.0228,
          "percent_delta": 0.0735,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3138,
          "after": 0.333,
          "delta": 0.0192,
          "percent_delta": 0.0612,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2286,
          "after": 0.333,
          "delta": 0.1044,
          "percent_delta": 0.4567,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2286,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3102,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3138,
        "predicted_SO": 0.0,
        "predicted_TB": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2286,
          "delta": -0.1044,
          "percent_delta": -0.3136,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3102,
          "delta": -0.0228,
          "percent_delta": -0.0684,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3138,
          "delta": -0.0192,
          "percent_delta": -0.0577,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2286,
          "delta": -0.1044,
          "percent_delta": -0.3136,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.9,
        "after": 3.0,
        "delta": 0.1,
        "percent_delta": 0.0345,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.271,
        "after": 0.2286,
        "delta": -0.0424,
        "percent_delta": -0.1565,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.38,
        "after": 0.0,
        "delta": -0.38,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.59,
        "after": 0.0,
        "delta": -0.59,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.05,
        "after": 0.0,
        "delta": -0.05,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.31,
        "after": 0.3102,
        "delta": 0.0002,
        "percent_delta": 0.0006,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.34,
        "after": 0.0,
        "delta": -0.34,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.27,
        "after": 0.0,
        "delta": -0.27,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.339,
        "after": 0.3138,
        "delta": -0.0252,
        "percent_delta": -0.0743,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.54,
        "after": 0.0,
        "delta": -0.54,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 1,
      "deboosted_metrics": 9,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 2.9,
        "after": 3.0,
        "delta": 0.1,
        "percent_delta": 0.0345,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.59,
        "after": 0.0,
        "delta": -0.59,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.100-
predicted_3B0.000-
predicted_AB2.900-
predicted_AVG0.271-
predicted_BB0.380-
predicted_H0.590-
predicted_HR0.050-
predicted_OBP0.310-
predicted_R0.340-
predicted_RBI0.270-
predicted_SLG0.339-
predicted_SO0.540-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1260.026
predicted_3B0.0010.001
predicted_AB2.9810.081
predicted_AVG0.260-0.011
predicted_BB0.346-0.034
predicted_H0.6560.066
predicted_HBP0.004-
predicted_HR0.041-0.009
predicted_OBP0.310-0.000
predicted_R0.337-0.003
predicted_RBI0.270-0.000
predicted_SLG0.333-0.006
predicted_SO0.518-0.022
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1260.000
predicted_3B0.0010.000
predicted_AB2.9810.000
predicted_AVG0.229-0.031
predicted_BB0.3530.006
predicted_H0.6810.025
predicted_HBP0.0040.000
predicted_HR0.0420.001
predicted_OBP0.3100.001
predicted_R0.3600.023
predicted_RBI0.2880.019
predicted_SLG0.314-0.019
predicted_SO0.508-0.010
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.98), rates preserved: AVG=0.229 HR/AB=0.014

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.126
predicted_3B0.000-0.001
predicted_AB3.0000.019
predicted_AVG0.3330.104
predicted_BB0.000-0.353
predicted_H1.0000.319
predicted_HR0.000-0.042
predicted_OBP0.3330.023
predicted_R0.000-0.360
predicted_RBI0.000-0.288
predicted_SLG0.3330.019
predicted_SO1.0000.492
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA3.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 50
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-16.0005.0001.0000.0000.0000.0001.0000.0001.0000.31250.31250.37500.31250.00000.00000.00000.0625
last_100.2010-29.0008.0003.0000.0000.0003.0003.0003.0003.0000.27590.34380.37930.27590.00000.10350.10350.1035
season0.6050-145.00030.0005.0000.0001.00014.00017.00019.00027.0000.20690.29520.26210.20690.00690.09650.13100.1862
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1650
predicted_3B0.0020
predicted_AB3.0990
predicted_AVG0.2431
predicted_BB0.2970
predicted_H0.7530
predicted_HBP0.0040
predicted_HR0.0270
predicted_OBP0.3092
predicted_R0.3330
predicted_RBI0.2690
predicted_SLG0.3237
predicted_SO0.4850
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.10000.16500.1263model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB2.90003.09902.9806model_form_blend
predicted_AVG0.27100.24310.2597model_form_blend
predicted_BB0.38000.29700.3464model_form_blend
predicted_H0.59000.75300.6561model_form_blend
predicted_HBP-0.00400.0040form_only
predicted_HR0.05000.02700.0407model_form_blend
predicted_OBP0.31000.30920.3097model_form_blend
predicted_R0.34000.33300.3372model_form_blend
predicted_RBI0.27000.26900.2696model_form_blend
predicted_SLG0.33900.32370.3328model_form_blend
predicted_SO0.54000.48500.5177model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date152
Season rows before report date152
Report year2026
Profile rows used50
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA3
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.207

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder9
Hitting_substitutionOrder2
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260617_CLE@MIL
game_typeshort
mlbID687401
playerID687401
playerNameJoey Ortiz
posSS
startedFalse
startingPosition3B
teamMIL
teamID16
game_date2026-06-17
sl_k_percent15.9
sl_bb_percent11.8
sl_woba0.263
sl_xwoba0.297
sl_xba0.231
sl_xslg0.3
sl_sweet_spot_percent22.0
sl_barrel_batted_rate3.3
sl_hard_hit_percent33.3
sl_exit_velocity_avg87.3
sl_launch_angle_avg7.3
sl_whiff_percent17.5
sl_swing_percent43.2
Shane Drohan (675660) · PITCHER · Starter · Team MIL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 14
All-history rows before 20260618: 14

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB3.0003.0003.000Pitching_BB0.7860.0002.2143.000
predicted_ER1.0001.0001.000Pitching_ER1.2144.000-0.214-3.000
predicted_H4.0004.0004.000Pitching_H2.7868.0001.214-4.000
predicted_IP5.0005.0005.000Pitching_InningsPitched2.9145.0002.0860.000
predicted_SO5.0005.0005.000Pitching_SO3.1437.0001.857-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "675660",
  "player_name": "Shane Drohan",
  "position": "Starter",
  "team": "MIL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 3.0,
        "predicted_ER": 1.0,
        "predicted_H": 4.0,
        "predicted_HR": 0.0,
        "predicted_IP": 5.0,
        "predicted_SO": 5.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 3.0,
        "predicted_ER": 1.0,
        "predicted_H": 4.0,
        "predicted_HR": 0.0,
        "predicted_IP": 5.0,
        "predicted_R": 1.0,
        "predicted_SO": 5.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 3.0,
        "after": 3.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 4.0,
        "after": 4.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 5.0,
        "after": 5.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 5.0,
        "after": 5.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB3.000-
predicted_ER1.000-
predicted_H4.000-
predicted_HR0.000-
predicted_IP5.000-
predicted_SO5.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 14
Reference playing time: 5.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.45520.10011.00020.0003.00022.0003.0004.86891.13110.54100.98360.14751.08200.1475
last_100.351031.00012.00027.0006.00035.0003.0003.48391.06450.38710.87100.19351.12900.0968
season0.201442.20017.00039.00011.00044.0003.0003.58591.17190.39840.91410.25781.03120.0703
Weighted Prediction From Real Data
MetricValue
predicted_BB0.8970
predicted_ER1.8120
predicted_ERA4.2277
predicted_H3.6330
predicted_HR0.4730
predicted_IP4.0000
predicted_SO4.0460
predicted_WHIP1.1742
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB3.00000.89701.8669model_form_blend
predicted_ER1.00001.81201.4375model_form_blend
predicted_ERA-4.22774.2277form_only
predicted_H4.00003.63303.8023model_form_blend
predicted_HR0.00000.47300.2549model_form_blend
predicted_IP5.00004.00004.1000model_form_blend
predicted_SO5.00004.04604.4860model_form_blend
predicted_WHIP-1.17421.1742form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date14
Season rows before report date14
Report year2026
Profile rows used14
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP5.0
H4
R1
ER1
BB3
SO5
HR0
BF22
Pitches87

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced23
Pitching_ER4
Pitching_ERA3.59
Pitching_Flyouts2
Pitching_Groundouts3
Pitching_H8
Pitching_HBP0
Pitching_HR1
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched5.0
Pitching_Pitches78
Pitching_R4
Pitching_SO7
Pitching_Strikes51
Pitching_Wild Pitch0
Pitching_decisionL
Pitching_pitchingOrder1
allPositionsPlayedP
gameID20260613_PHI@MIL
game_typefull
mlbID675660
playerID675660
playerNameShane Drohan
posP
startedTrue
startingPositionP
teamMIL
teamID16
game_date2026-06-13
sl_k_percent24.9
sl_bb_percent6.2
sl_woba0.285
sl_xwoba0.273
sl_sweet_spot_percent34.4
sl_barrel_batted_rate9.0
sl_hard_hit_percent37.7
sl_whiff_percent29.0
sl_swing_percent50.3
sl_avg_best_speed77.190034918
sl_avg_hyper_speed93.791136529
Aaron Ashby (676879) · PITCHER · Middle Reliever · Team MIL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 33
All-history rows before 20260618: 33

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.6670.000-0.6670.000
predicted_ER0.0000.0000.000Pitching_ER0.4240.000-0.4240.000
predicted_H0.0000.0000.000Pitching_H1.1520.000-1.1520.000
predicted_IP1.1001.1001.100Pitching_InningsPitched1.2361.000-0.1360.100
predicted_SO0.0000.0000.000Pitching_SO1.8480.000-1.8480.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 1.3333 -> 1.1000 (deboost -0.2333, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_IP: 1.3333 -> 1.1000 (deboost -0.2333, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "676879",
  "player_name": "Aaron Ashby",
  "position": "Middle Reliever",
  "team": "MIL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.3333,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.1,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.3333,
          "after": 1.1,
          "delta": -0.2333,
          "percent_delta": -0.175,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 1.3333,
          "after": 1.1,
          "delta": -0.2333,
          "percent_delta": -0.175,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.3333,
        "after": 1.1,
        "delta": -0.2333,
        "percent_delta": -0.175,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 1.3333,
        "after": 1.1,
        "delta": -0.2333,
        "percent_delta": -0.175,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.333-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 33
Reference playing time: 1.333
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4556.2004.0006.0003.0008.0002.0005.40001.35000.60000.90000.45001.20000.3000
last_100.351014.0006.00012.0005.00015.0002.0003.85711.21430.42860.85710.35711.07140.1429
season0.203345.00014.00038.00022.00061.0003.0002.80001.33330.31110.84440.48891.35560.0667
Weighted Prediction From Real Data
MetricValue
predicted_BB0.5370
predicted_ER0.6520
predicted_ERA4.4004
predicted_H1.2130
predicted_HR0.2390
predicted_IP1.1000
predicted_SO1.4630
predicted_WHIP1.3128
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.53700.2676model_form_blend
predicted_ER0.00000.65200.3250model_form_blend
predicted_ERA-4.40044.4004form_only
predicted_H0.00001.21300.6046model_form_blend
predicted_HR0.00000.23900.1191model_form_blend
predicted_IP1.10001.10001.1000model_form_blend
predicted_SO0.00001.46300.7292model_form_blend
predicted_WHIP-1.31281.3128form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date33
Season rows before report date33
Report year2026
Profile rows used33
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.1
H0
R0
ER0
BB0
SO0
HR0
BF4
Pitches13

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA2.80
Pitching_Flyouts1
Pitching_Groundouts1
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches9
Pitching_R0
Pitching_SO0
Pitching_Strikes7
Pitching_Wild Pitch0
Pitching_decisionH
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260617_CLE@MIL
game_typefull
mlbID676879
playerID676879
playerNameAaron Ashby
posP
startedFalse
startingPositionP
teamMIL
teamID16
game_date2026-06-17
sl_k_percent31.6
sl_bb_percent11.4
sl_woba0.293
sl_xwoba0.269
sl_sweet_spot_percent26.9
sl_barrel_batted_rate4.6
sl_hard_hit_percent40.7
sl_whiff_percent33.2
sl_swing_percent40.8
sl_avg_best_speed74.871604815
sl_avg_hyper_speed94.413072804
Abner Uribe (682842) · PITCHER · Middle Reliever · Team MIL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 27
All-history rows before 20260618: 27

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.4071.000-0.407-1.000
predicted_ER0.0000.0000.000Pitching_ER0.3700.000-0.3700.000
predicted_H0.0000.0000.000Pitching_H0.7410.000-0.7410.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.8811.0000.1190.000
predicted_SO2.0002.0002.000Pitching_SO1.0002.0001.0000.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "682842",
  "player_name": "Abner Uribe",
  "position": "Middle Reliever",
  "team": "MIL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO2.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 27
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.1001.0004.0002.0005.0000.0001.68751.12500.18750.75000.37500.93750.0000
last_100.351010.1004.0009.0006.00011.0001.0003.48391.45160.38710.87100.58061.06450.0968
season0.202725.20010.00020.00011.00027.0002.0003.50651.20780.38960.77920.42861.05190.0779
Weighted Prediction From Real Data
MetricValue
predicted_BB0.4110
predicted_ER0.3980
predicted_ERA3.5854
predicted_H0.8850
predicted_HR0.0970
predicted_IP1.0000
predicted_SO0.9720
predicted_WHIP1.2961
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.41100.1812model_form_blend
predicted_ER0.00000.39800.1754model_form_blend
predicted_ERA-3.58543.5854form_only
predicted_H0.00000.88500.3901model_form_blend
predicted_HR0.00000.09700.0428model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO2.00000.97201.5469model_form_blend
predicted_WHIP-1.29611.2961form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date27
Season rows before report date27
Report year2026
Profile rows used27
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB0
SO2
HR0
BF3
Pitches17

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER0
Pitching_ERA3.51
Pitching_Flyouts1
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners1
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches18
Pitching_R0
Pitching_SO2
Pitching_Strikes11
Pitching_Wild Pitch2
Pitching_decisionH
Pitching_pitchingOrder4
allPositionsPlayedP
gameID20260616_CLE@MIL
game_typefull
mlbID682842
playerID682842
playerNameAbner Uribe
posP
startedFalse
startingPositionP
teamMIL
teamID16
game_date2026-06-16
sl_k_percent25.0
sl_bb_percent10.2
sl_woba0.259
sl_xwoba0.266
sl_sweet_spot_percent30.0
sl_barrel_batted_rate2.9
sl_hard_hit_percent31.4
sl_whiff_percent25.1
sl_swing_percent42.8
sl_avg_best_speed78.014525429
sl_avg_hyper_speed92.792921884
Trevor Megill (656730) · PITCHER · Middle Reliever · Team MIL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 27
All-history rows before 20260618: 27

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.2960.000-0.2960.000
predicted_ER0.0000.0000.000Pitching_ER0.4440.000-0.4440.000
predicted_H0.0000.0000.000Pitching_H0.7780.000-0.7780.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.9631.0000.0370.000
predicted_SO2.0002.0002.000Pitching_SO1.3332.0000.6670.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "656730",
  "player_name": "Trevor Megill",
  "position": "Middle Reliever",
  "team": "MIL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO2.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 26
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.0002.0005.0002.0009.0000.0003.60001.40000.40001.00000.40001.80000.0000
last_100.351010.0002.0007.0002.00016.0000.0001.80000.90000.20000.70000.20001.60000.0000
season0.202626.0008.00019.0008.00036.0000.0002.76921.03850.30770.73080.30771.38460.0000
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3370
predicted_ER0.4050
predicted_ERA3.6424
predicted_H0.9070
predicted_HR0.0720
predicted_IP1.0000
predicted_SO1.2980
predicted_WHIP1.2435
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.33700.1490model_form_blend
predicted_ER0.00000.40500.1791model_form_blend
predicted_ERA-3.64243.6424form_only
predicted_H0.00000.90700.4010model_form_blend
predicted_HR0.00000.07200.0318model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO2.00001.29801.6896model_form_blend
predicted_WHIP-1.24351.2435form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date27
Season rows before report date27
Report year2026
Profile rows used26
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB0
SO2
HR0
BF3
Pitches14

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA4.15
Pitching_Flyouts0
Pitching_Groundouts1
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches12
Pitching_R0
Pitching_SO2
Pitching_Strikes8
Pitching_Wild Pitch0
Pitching_decisionS
Pitching_pitchingOrder5
allPositionsPlayedP
gameID20260616_CLE@MIL
game_typefull
mlbID656730
playerID656730
playerNameTrevor Megill
posP
startedFalse
startingPositionP
teamMIL
teamID16
game_date2026-06-16
sl_k_percent33.0
sl_bb_percent7.3
sl_woba0.251
sl_xwoba0.246
sl_sweet_spot_percent29.7
sl_barrel_batted_rate4.7
sl_hard_hit_percent42.2
sl_whiff_percent35.9
sl_swing_percent51.0
sl_avg_best_speed81.742076667
sl_avg_hyper_speed94.448879667
Grant Anderson (681982) · PITCHER · Middle Reliever · Team MIL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 28
All-history rows before 20260618: 28

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.3570.000-0.3570.000
predicted_ER0.0000.0000.000Pitching_ER0.3210.000-0.3210.000
predicted_H0.0000.0000.000Pitching_H0.6790.000-0.6790.000
predicted_IP0.2000.2000.200Pitching_InningsPitched0.9001.000-0.700-0.800
predicted_SO2.0002.0002.000Pitching_SO0.8210.0001.1792.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 0.6667 -> 0.2000 (deboost -0.4667, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_IP: 0.6667 -> 0.2000 (deboost -0.4667, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "681982",
  "player_name": "Grant Anderson",
  "position": "Middle Reliever",
  "team": "MIL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.6667,
        "predicted_SO": 2.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.2,
        "predicted_R": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 0.6667,
          "after": 0.2,
          "delta": -0.4667,
          "percent_delta": -0.7,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 0.6667,
          "after": 0.2,
          "delta": -0.4667,
          "percent_delta": -0.7,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 0.6667,
        "after": 0.2,
        "delta": -0.4667,
        "percent_delta": -0.7,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 0.6667,
        "after": 0.2,
        "delta": -0.4667,
        "percent_delta": -0.7,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP0.667-
predicted_SO2.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 28
Reference playing time: 0.667
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4557.0002.0003.0002.0005.0000.0002.57140.71430.28570.42860.28570.71430.0000
last_100.351013.1003.0007.0004.0008.0001.0002.02500.82500.22500.52500.30000.60000.0750
season0.202830.1009.00019.00010.00023.0003.0002.67030.95600.29670.62640.32970.75820.0989
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3270
predicted_ER0.3710
predicted_ERA3.3563
predicted_H0.7120
predicted_HR0.0910
predicted_IP1.0000
predicted_SO0.7940
predicted_WHIP1.0444
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.32700.1499model_form_blend
predicted_ER0.00000.37100.1700model_form_blend
predicted_ERA-3.35633.3563form_only
predicted_H0.00000.71200.3263model_form_blend
predicted_HR0.00000.09100.0417model_form_blend
predicted_IP0.20001.00000.2000model_form_blend
predicted_SO2.00000.79401.4472model_form_blend
predicted_WHIP-1.04441.0444form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date28
Season rows before report date28
Report year2026
Profile rows used28
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP0.2
H0
R0
ER0
BB0
SO2
HR0
BF2
Pitches19

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA2.67
Pitching_Flyouts1
Pitching_Groundouts1
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches14
Pitching_R0
Pitching_SO0
Pitching_Strikes9
Pitching_Wild Pitch0
Pitching_pitchingOrder4
allPositionsPlayedP
gameID20260617_CLE@MIL
game_typefull
mlbID681982
playerID681982
playerNameGrant Anderson
posP
startedFalse
startingPositionP
teamMIL
teamID16
game_date2026-06-17
sl_k_percent20.5
sl_bb_percent8.9
sl_woba0.268
sl_xwoba0.26
sl_sweet_spot_percent31.6
sl_barrel_batted_rate6.3
sl_hard_hit_percent35.4
sl_whiff_percent21.0
sl_swing_percent50.0
sl_avg_best_speed76.5031505
sl_avg_hyper_speed93.296914304

20260618_LAA@OAK

Prediction Method: enhanced_ml_savant_pitcher_quality
Team Recent Window (Home): 64 games
Team Recent Window (Away): 65 games
Team Recent Period: Latest 10 games from dataset
Enhanced Prediction Target: {"away_runs": 3, "home_runs": 4, "confidence": 0.587516, "home_win_probability": 0.587516, "away_win_probability": 0.41248399999999996, "predicted_score_text": "LAA 3 - 4 OAK", "embedded_savant_score_adjustment": {"applied": true, "source": "all_players_stats.csv embedded temporal Savant features", "feature_contract": {"training_grain": "one player-game row after collapsing granular at-bat rows", "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game", "hitter_signals": ["xwoba", "xba", "xslg", "barrel_batted_rate", "hard_hit_percent", "bat_speed", "launch_quality", "walk_rate", "strikeout_rate"], "pitcher_signals": ["xwoba_allowed", "barrel_allowed", "hard_hit_allowed", "whiff_rate", "command_score", "movement_score", "faced_est_woba", "faced_strikeout_rate"]}, "away": {"team": "LAA", "original_runs": 3, "run_delta": -0.0652, "adjusted_runs": 3, "lineup": {"players_used": 8, "total_weight": 28.0, "quality": 0.06677945226852519, "contact": -0.018962133356363337, "power": 0.0828207902579758, "discipline": -0.2522507775451836, "xwoba": 0.3133214285714286, "recent_xwoba": 0.3133214285714286, "barrel": 8.160714285714286, "ab_hard_contact": -0.2934889567452562, "ab_bat_speed": 70.87356282850236, "ab_strikeout_rate": 0.26191373972818066, "available_players": 6, "top_players": [{"player_id": "666176", "player_name": "Jo Adell", "position": "RF", "weight": 4.0, "quality": 0.4120482511863485, "contact": 0.543619327167278, "power": 0.5885470183948603, "discipline": -0.8473995354239257, "xwoba": 0.333, "recent_xwoba": 0.333, "barrel": 8.6, "ab_hard_contact": 0.7256070345638618, "ab_bat_speed": 75.8700483276644, "ab_strikeout_rate": 0.2571428571428572, "available": 1.0}, {"player_id": "687093", "player_name": "Vaughn Grissom", "position": "1B", "weight": 4.0, "quality": 0.3453188756386452, "contact": 0.7922363852029917, "power": 0.4170398171118828, "discipline": 0.5375468931475031, "xwoba": 0.344, "recent_xwoba": 0.344, "barrel": 7.3, "ab_hard_contact": 1.071082056523362, "ab_bat_speed": 69.57450148809524, "ab_strikeout_rate": 0.153125, "available": 1.0}, {"player_id": "663611", "player_name": "Nick Madrigal", "position": "2B", "weight": 3.0, "quality": -0.0, "contact": -0.37477142857142814, "power": -1.3751809523809515, "discipline": 1.5878571428571429, "xwoba": 0.292, "recent_xwoba": 0.292, "barrel": 0.0, "ab_hard_contact": -2.0, "ab_bat_speed": 70.26065568475452, "ab_strikeout_rate": 0.22179487179487178, "available": 0.0}, {"player_id": "642350", "player_name": "Jose Siri", "position": "CF", "weight": 3.0, "quality": 0.027814639492398093, "contact": 0.5099399819291826, "power": 1.1947239040909532, "discipline": -0.7593571428571428, "xwoba": 0.366, "recent_xwoba": 0.366, "barrel": 17.1, "ab_hard_contact": 0.7843828437238143, "ab_bat_speed": 71.58240740740742, "ab_strikeout_rate": 0.4444444444444444, "available": 1.0}, {"player_id": "694203", "player_name": "Denzer Guzman", "position": "3B", "weight": 4.0, "quality": -0.0, "contact": -0.48619999999999947, "power": -0.803466666666666, "discipline": -0.8103571428571428, "xwoba": 0.254, "recent_xwoba": 0.254, "barrel": 0.0, "ab_hard_contact": -2.0, "ab_bat_speed": 70.26065568475452, "ab_strikeout_rate": 0.22179487179487178, "available": 0.0}]}, "opposing_starter": {"available": true, "player_id": "695611", "player_name": "Gage Jump", "quality": 0.038803122303877204, "contact": 0.7633953284087303, "command": -0.04128571428571445, "movement": 0.47150724740258115, "xwoba": 0.285, "whiff": 24.2, "faced_est_woba": 0.267543125, "faced_launch_speed": 83.82962962962962, "faced_strikeout_rate": 0.23125, "faced_run_exp": 0.007916194341372912}}, "home": {"team": "OAK", "original_runs": 4, "run_delta": 0.4751, "adjusted_runs": 4, "lineup": {"players_used": 9, "total_weight": 33.0, "quality": 0.2870728697521068, "contact": 0.2969767627590197, "power": 0.2942889225222656, "discipline": 0.15237739372733516, "xwoba": 0.3278787878787878, "recent_xwoba": 0.3278787878787878, "barrel": 8.81818181818182, "ab_hard_contact": 0.23280875347560961, "ab_bat_speed": 71.17085795920467, "ab_strikeout_rate": 0.1998269669526354, "available_players": 9, "top_players": [{"player_id": "701762", "player_name": "Nick Kurtz", "position": "1B", "weight": 4.0, "quality": 1.336492473031443, "contact": 1.2814758774318278, "power": 1.9100705308056307, "discipline": 0.6426957026713125, "xwoba": 0.395, "recent_xwoba": 0.395, "barrel": 17.9, "ab_hard_contact": 1.2726487113506997, "ab_bat_speed": 76.35883401920438, "ab_strikeout_rate": 0.3083333333333333, "available": 1.0}, {"player_id": "669127", "player_name": "Shea Langeliers", "position": "C", "weight": 5.0, "quality": 1.0505788267785434, "contact": 1.0935692590720392, "power": 1.4652469060545346, "discipline": -0.06432810685249703, "xwoba": 0.375, "recent_xwoba": 0.375, "barrel": 14.4, "ab_hard_contact": 1.2639857401383139, "ab_bat_speed": 74.42080277777778, "ab_strikeout_rate": 0.21600000000000003, "available": 1.0}, {"player_id": "805779", "player_name": "Jacob Wilson", "position": "SS", "weight": 4.0, "quality": -0.5419549006710218, "contact": -0.5356997940170938, "power": -1.1541071865207604, "discipline": 0.06462732660293669, "xwoba": 0.271, "recent_xwoba": 0.271, "barrel": 1.8999999999999997, "ab_hard_contact": -0.6078580161294928, "ab_bat_speed": 62.39934035409035, "ab_strikeout_rate": 0.1094017094017094, "available": 1.0}, {"player_id": "666126", "player_name": "Carlos Cortes", "position": "RF", "weight": 3.0, "quality": 0.4852983017185786, "contact": 1.0465012643967146, "power": 0.48068565677133784, "discipline": 0.7954792524548623, "xwoba": 0.365, "recent_xwoba": 0.365, "barrel": 8.7, "ab_hard_contact": 0.5493321830457941, "ab_bat_speed": 69.50095057720058, "ab_strikeout_rate": 0.09962121212121212, "available": 1.0}, {"player_id": "643446", "player_name": "Jeff McNeil", "position": "2B", "weight": 3.0, "quality": -0.25968066384270844, "contact": -0.04702785747324531, "power": -0.9610550401549489, "discipline": 0.5370397736330306, "xwoba": 0.308, "recent_xwoba": 0.308, "barrel": 1.1, "ab_hard_contact": -0.705291279289456, "ab_bat_speed": 66.7119767351385, "ab_strikeout_rate": 0.14934640522875817, "available": 1.0}]}, "opposing_starter": {"available": true, "player_id": "696270", "player_name": "Ryan Johnson", "quality": -0.1735959684134636, "contact": -1.7951794830362962, "command": -0.8759682539682541, "movement": -1.1217642365755185, "xwoba": 0.386, "whiff": 23.1, "faced_est_woba": 0.21198146666666665, "faced_launch_speed": 77.0474279835391, "faced_strikeout_rate": 0.4666666666666666, "faced_run_exp": 0.0011076631393297915}}}, "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Production confidence governor cap enforced.", "pre_simulation_target": {"away_runs": 3, "home_runs": 4, "predicted_score_text": "LAA 3 - 4 OAK", "confidence": 0.587516, "source": "enhanced_prediction_before_inning_simulation"}, "score_source": "enhanced_prediction.pre_simulation_target", "final_prediction_synced": true, "final_prediction_source": "pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "simulation_score_matches_prediction": false, "simulation_reconciliation": {"pre_simulation_score": {"away_runs": 3, "home_runs": 4, "score_text": "LAA 3 - 4 OAK", "winner": "OAK"}, "final_simulation_score": {"away_runs": 4, "home_runs": 7, "score_text": "LAA 4 - 7 OAK", "winner": "OAK"}, "winner_flipped_by_simulation": false, "away_run_delta": 1, "home_run_delta": 3, "total_run_delta": 4, "score_source": "enhanced_prediction.pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "final_prediction_source": "pre_simulation_target"}}
Factors Considered: Historical team performance, Season-to-date run differential, Recent form (latest 10 games), Head-to-head matchup history, Player-level statistics, Baseball Savant hitter xwOBA/xBA/xSLG/contact quality, Baseball Savant pitcher xwOBA/contact/whiff quality, Recent 10-game performance trends, Pitcher recent form analysis, Team hitting/pitching streaks, Low-score probability modeling, Environmental factors, Home field advantage, Game timing factors, Seasonal adjustments, Machine learning models

Game-Level Prediction Audit

LayerScoreWinnerConfidenceSource or usageSynced or matches
Shipped predictionLAA 3 - 4 OAKOAK0.588enhanced_prediction.pre_simulation_targetTrue
Simulation drawLAA 4 - 7 OAKOAK-advisory_box_score_drawFalse

The shipped score is the pre-simulation model target. The inning simulation is a separate box-score realization used for player lines and stress testing.

Full Prediction Process

Process LayerWhat It DoesStored FieldObserved Value
1. Historical modelStarts from trained game model output.score_evolution.steps[historical_ml]-
2. Variance layerApplies bounded game variance before enhanced corrections.score_evolution.steps[variance_applied]-
3. Recent/team formUses latest team form, recent scoring, prevention, and streak state.enhanced_prediction_analysis.recent_formTrue
4. Season qualityUses season run differential and record quality guardrails.season_run_differential_adjustment, season_quality_guardrailTrue
5. Savant hittersApplies lineup-level Statcast xwOBA, xBA, xSLG, barrel, hard-hit, sweet-spot, EV, launch-angle, whiff, K and BB quality.savant_batter_quality_adjustmentTrue
6. Savant pitchersApplies starter run prevention, strikeout, walk, HR and regression factors from xwOBA, wOBA, contact quality and whiff/command.savant_pitcher_quality_adjustmentTrue
7. Low-score analysisControls unrealistic totals and preserves the pre-sync low-score expected total.low_score_analysis9.6000
8. Probability/governorsApplies win probability calibration, matchup guardrails, margin governor and confidence governor.win_probability_calibration, margin_governor, confidence_governor0.5875
9. Simulation reconciliationKeeps final shipped score and simulation box score auditable side by side.simulation_reconciliationadvisory_box_score_draw
10. Score evolution rendered6 stored score steps are rendered below.game.score_evolution.stepstrue

Score Evolution Steps

StepLayerAway RunsHome RunsConfidenceDescription
1historical_ml4.6796.693-Base ML historical model prediction
2variance_applied47-Random variance applied (0.9-1.1)
3enhanced_prediction340.5875Enhanced ML with recent form, H2H, low-score analysis
4embedded_savant_run_environment34-Target score adjusted by temporal Savant lineup quality versus opposing starter quality
5capped_target34-Capped at max 12 realistic runs
6simulation_result47-Final inning-by-inning simulation result

Governors, Guardrails, and Reconciliation

Low Score Analysis
{
  "low_score_probability": 0.4668039702233251,
  "base_low_score_probability": 0.4160463192721257,
  "low_score_signal_threshold": 0.5,
  "low_score_signal_strength": 0.050757650951199385,
  "confidence": 0.661,
  "factors": {
    "environmental": 1.02,
    "pitcher_form": 1.1,
    "team_form": 1.0,
    "situational": 1.0,
    "combined": 1.122
  },
  "prediction": "normal_scoring",
  "expected_total_runs": 7,
  "pre_simulation_expected_total_runs": 9.6,
  "low_score_model_expected_total_runs": 9.6,
  "final_simulation_total_runs": 11,
  "score_source": "enhanced_prediction.pre_simulation_target"
}
Win Probability Calibration
{
  "method": "historical_slate_bin_shrinkage",
  "sample_size": 41,
  "near_bucket_sample_size": 41,
  "medium_bucket_sample_size": 153,
  "wide_bucket_sample_size": 242,
  "global_sample_size": 242,
  "bucket_scope": "near_0.05",
  "sparse_bucket": false,
  "empirical_hit_rate": 0.6098,
  "bayesian_hit_rate": 0.5763,
  "sample_weight": 0.5907,
  "prior_strength": 18.0,
  "reliability": 0.6949,
  "confidence_cap": 0.78,
  "raw_pick_probability": 0.6275,
  "calibrated_pick_probability": 0.5875,
  "predicted_side": "home"
}
Season Run Differential Adjustment
{
  "applied": false,
  "home": {
    "team": "OAK",
    "games": 73,
    "wins": 36,
    "losses": 37,
    "win_pct": 0.4931506849315068,
    "runs_scored": 336,
    "runs_allowed": 379,
    "run_differential": -43,
    "run_differential_per_game": -0.589041095890411,
    "available": true
  },
  "away": {
    "team": "LAA",
    "games": 75,
    "wins": 30,
    "losses": 45,
    "win_pct": 0.4,
    "runs_scored": 334,
    "runs_allowed": 373,
    "run_differential": -39,
    "run_differential_per_game": -0.52,
    "available": true
  },
  "run_differential_edge_per_game": -0.069,
  "win_pct_edge": 0.0932,
  "quality_edge": 0.0707,
  "margin_adjustment": 0.0,
  "reason": "season quality edge below action threshold"
}
Matchup Recency Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "predicted_team": "OAK",
    "guardrail_predicted_team": "OAK",
    "guardrail_opponent_team": null,
    "output_pre_simulation_winner": "OAK",
    "output_opponent_team": "LAA",
    "final_score_winner": "OAK",
    "pre_simulation_winner": "OAK",
    "winner_flipped_by_simulation": false
  },
  "final_prediction_sync": {
    "pre_simulation_score": {
      "away_runs": 3,
      "home_runs": 4,
      "score_text": "LAA 3 - 4 OAK",
      "winner": "OAK"
    },
    "final_simulation_score": {
      "away_runs": 4,
      "home_runs": 7,
      "score_text": "LAA 4 - 7 OAK",
      "winner": "OAK"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": 1,
    "home_run_delta": 3,
    "total_run_delta": 4,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}
Season Quality Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "home": {
      "team": "OAK",
      "games": 73,
      "wins": 36,
      "losses": 37,
      "win_pct": 0.4931506849315068,
      "runs_scored": 336,
      "runs_allowed": 379,
      "run_differential": -43,
      "run_differential_per_game": -0.589041095890411,
      "available": true
    },
    "away": {
      "team": "LAA",
      "games": 75,
      "wins": 30,
      "losses": 45,
      "win_pct": 0.4,
      "runs_scored": 334,
      "runs_allowed": 373,
      "run_differential": -39,
      "run_differential_per_game": -0.52,
      "available": true
    }
  }
}
Margin Governor
{
  "applied": true,
  "raw_margin": 2.8933,
  "final_margin": 1.5,
  "margin_cap": 1.5,
  "season_quality_edge": 0.0707,
  "reason": "large target margin capped because season quality evidence did not justify a decisive prediction",
  "adjusted_score": {
    "away_runs": 2.941,
    "home_runs": 4.441
  }
}
Confidence Governor
{
  "applied": false,
  "raw_confidence": 0.587516,
  "final_confidence": 0.587516,
  "confidence_cap": 0.63,
  "score_gap": 1.5,
  "calibration_sample_size": 41,
  "calibration_empirical_hit_rate": 0.6098,
  "calibration_bayesian_hit_rate": 0.5763,
  "calibration_sparse_bucket": false,
  "season_quality_edge": 0.0707,
  "reasons": [
    "unvalidated probabilities are capped for production display",
    "projected score gap is moderate",
    "local calibration sample has at least 30 games",
    "win-probability calibration cap enforced"
  ]
}
Simulation Reconciliation
{
  "pre_simulation_score": {
    "away_runs": 3,
    "home_runs": 4,
    "score_text": "LAA 3 - 4 OAK",
    "winner": "OAK"
  },
  "final_simulation_score": {
    "away_runs": 4,
    "home_runs": 7,
    "score_text": "LAA 4 - 7 OAK",
    "winner": "OAK"
  },
  "winner_flipped_by_simulation": false,
  "away_run_delta": 1,
  "home_run_delta": 3,
  "total_run_delta": 4,
  "score_source": "enhanced_prediction.pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "final_prediction_source": "pre_simulation_target"
}
Enhanced Prediction Target
{
  "away_runs": 3,
  "home_runs": 4,
  "confidence": 0.587516,
  "home_win_probability": 0.587516,
  "away_win_probability": 0.41248399999999996,
  "predicted_score_text": "LAA 3 - 4 OAK",
  "embedded_savant_score_adjustment": {
    "applied": true,
    "source": "all_players_stats.csv embedded temporal Savant features",
    "feature_contract": {
      "training_grain": "one player-game row after collapsing granular at-bat rows",
      "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game",
      "hitter_signals": [
        "xwoba",
        "xba",
        "xslg",
        "barrel_batted_rate",
        "hard_hit_percent",
        "bat_speed",
        "launch_quality",
        "walk_rate",
        "strikeout_rate"
      ],
      "pitcher_signals": [
        "xwoba_allowed",
        "barrel_allowed",
        "hard_hit_allowed",
        "whiff_rate",
        "command_score",
        "movement_score",
        "faced_est_woba",
        "faced_strikeout_rate"
      ]
    },
    "away": {
      "team": "LAA",
      "original_runs": 3,
      "run_delta": -0.0652,
      "adjusted_runs": 3,
      "lineup": {
        "players_used": 8,
        "total_weight": 28.0,
        "quality": 0.06677945226852519,
        "contact": -0.018962133356363337,
        "power": 0.0828207902579758,
        "discipline": -0.2522507775451836,
        "xwoba": 0.3133214285714286,
        "recent_xwoba": 0.3133214285714286,
        "barrel": 8.160714285714286,
        "ab_hard_contact": -0.2934889567452562,
        "ab_bat_speed": 70.87356282850236,
        "ab_strikeout_rate": 0.26191373972818066,
        "available_players": 6,
        "top_players": [
          {
            "player_id": "666176",
            "player_name": "Jo Adell",
            "position": "RF",
            "weight": 4.0,
            "quality": 0.4120482511863485,
            "contact": 0.543619327167278,
            "power": 0.5885470183948603,
            "discipline": -0.8473995354239257,
            "xwoba": 0.333,
            "recent_xwoba": 0.333,
            "barrel": 8.6,
            "ab_hard_contact": 0.7256070345638618,
            "ab_bat_speed": 75.8700483276644,
            "ab_strikeout_rate": 0.2571428571428572,
            "available": 1.0
          },
          {
            "player_id": "687093",
            "player_name": "Vaughn Grissom",
            "position": "1B",
            "weight": 4.0,
            "quality": 0.3453188756386452,
            "contact": 0.7922363852029917,
            "power": 0.4170398171118828,
            "discipline": 0.5375468931475031,
            "xwoba": 0.344,
            "recent_xwoba": 0.344,
            "barrel": 7.3,
            "ab_hard_contact": 1.071082056523362,
            "ab_bat_speed": 69.57450148809524,
            "ab_strikeout_rate": 0.153125,
            "available": 1.0
          },
          {
            "player_id": "663611",
            "player_name": "Nick Madrigal",
            "position": "2B",
            "weight": 3.0,
            "quality": -0.0,
            "contact": -0.37477142857142814,
            "power": -1.3751809523809515,
            "discipline": 1.5878571428571429,
            "xwoba": 0.292,
            "recent_xwoba": 0.292,
            "barrel": 0.0,
            "ab_hard_contact": -2.0,
            "ab_bat_speed": 70.26065568475452,
            "ab_strikeout_rate": 0.22179487179487178,
            "available": 0.0
          },
          {
            "player_id": "642350",
            "player_name": "Jose Siri",
            "position": "CF",
            "weight": 3.0,
            "quality": 0.027814639492398093,
            "contact": 0.5099399819291826,
            "power": 1.1947239040909532,
            "discipline": -0.7593571428571428,
            "xwoba": 0.366,
            "recent_xwoba": 0.366,
            "barrel": 17.1,
            "ab_hard_contact": 0.7843828437238143,
            "ab_bat_speed": 71.58240740740742,
            "ab_strikeout_rate": 0.4444444444444444,
            "available": 1.0
          },
          {
            "player_id": "694203",
            "player_name": "Denzer Guzman",
            "position": "3B",
            "weight": 4.0,
            "quality": -0.0,
            "contact": -0.48619999999999947,
            "power": -0.803466666666666,
            "discipline": -0.8103571428571428,
            "xwoba": 0.254,
            "recent_xwoba": 0.254,
            "barrel": 0.0,
            "ab_hard_contact": -2.0,
            "ab_bat_speed": 70.26065568475452,
            "ab_strikeout_rate": 0.22179487179487178,
            "available": 0.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "695611",
        "player_name": "Gage Jump",
        "quality": 0.038803122303877204,
        "contact": 0.7633953284087303,
        "command": -0.04128571428571445,
        "movement": 0.47150724740258115,
        "xwoba": 0.285,
        "whiff": 24.2,
        "faced_est_woba": 0.267543125,
        "faced_launch_speed": 83.82962962962962,
        "faced_strikeout_rate": 0.23125,
        "faced_run_exp": 0.007916194341372912
      }
    },
    "home": {
      "team": "OAK",
      "original_runs": 4,
      "run_delta": 0.4751,
      "adjusted_runs": 4,
      "lineup": {
        "players_used": 9,
        "total_weight": 33.0,
        "quality": 0.2870728697521068,
        "contact": 0.2969767627590197,
        "power": 0.2942889225222656,
        "discipline": 0.15237739372733516,
        "xwoba": 0.3278787878787878,
        "recent_xwoba": 0.3278787878787878,
        "barrel": 8.81818181818182,
        "ab_hard_contact": 0.23280875347560961,
        "ab_bat_speed": 71.17085795920467,
        "ab_strikeout_rate": 0.1998269669526354,
        "available_players": 9,
        "top_players": [
          {
            "player_id": "701762",
            "player_name": "Nick Kurtz",
            "position": "1B",
            "weight": 4.0,
            "quality": 1.336492473031443,
            "contact": 1.2814758774318278,
            "power": 1.9100705308056307,
            "discipline": 0.6426957026713125,
            "xwoba": 0.395,
            "recent_xwoba": 0.395,
            "barrel": 17.9,
            "ab_hard_contact": 1.2726487113506997,
            "ab_bat_speed": 76.35883401920438,
            "ab_strikeout_rate": 0.3083333333333333,
            "available": 1.0
          },
          {
            "player_id": "669127",
            "player_name": "Shea Langeliers",
            "position": "C",
            "weight": 5.0,
            "quality": 1.0505788267785434,
            "contact": 1.0935692590720392,
            "power": 1.4652469060545346,
            "discipline": -0.06432810685249703,
            "xwoba": 0.375,
            "recent_xwoba": 0.375,
            "barrel": 14.4,
            "ab_hard_contact": 1.2639857401383139,
            "ab_bat_speed": 74.42080277777778,
            "ab_strikeout_rate": 0.21600000000000003,
            "available": 1.0
          },
          {
            "player_id": "805779",
            "player_name": "Jacob Wilson",
            "position": "SS",
            "weight": 4.0,
            "quality": -0.5419549006710218,
            "contact": -0.5356997940170938,
            "power": -1.1541071865207604,
            "discipline": 0.06462732660293669,
            "xwoba": 0.271,
            "recent_xwoba": 0.271,
            "barrel": 1.8999999999999997,
            "ab_hard_contact": -0.6078580161294928,
            "ab_bat_speed": 62.39934035409035,
            "ab_strikeout_rate": 0.1094017094017094,
            "available": 1.0
          },
          {
            "player_id": "666126",
            "player_name": "Carlos Cortes",
            "position": "RF",
            "weight": 3.0,
            "quality": 0.4852983017185786,
            "contact": 1.0465012643967146,
            "power": 0.48068565677133784,
            "discipline": 0.7954792524548623,
            "xwoba": 0.365,
            "recent_xwoba": 0.365,
            "barrel": 8.7,
            "ab_hard_contact": 0.5493321830457941,
            "ab_bat_speed": 69.50095057720058,
            "ab_strikeout_rate": 0.09962121212121212,
            "available": 1.0
          },
          {
            "player_id": "643446",
            "player_name": "Jeff McNeil",
            "position": "2B",
            "weight": 3.0,
            "quality": -0.25968066384270844,
            "contact": -0.04702785747324531,
            "power": -0.9610550401549489,
            "discipline": 0.5370397736330306,
            "xwoba": 0.308,
            "recent_xwoba": 0.308,
            "barrel": 1.1,
            "ab_hard_contact": -0.705291279289456,
            "ab_bat_speed": 66.7119767351385,
            "ab_strikeout_rate": 0.14934640522875817,
            "available": 1.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "696270",
        "player_name": "Ryan Johnson",
        "quality": -0.1735959684134636,
        "contact": -1.7951794830362962,
        "command": -0.8759682539682541,
        "movement": -1.1217642365755185,
        "xwoba": 0.386,
        "whiff": 23.1,
        "faced_est_woba": 0.21198146666666665,
        "faced_launch_speed": 77.0474279835391,
        "faced_strikeout_rate": 0.4666666666666666,
        "faced_run_exp": 0.0011076631393297915
      }
    }
  },
  "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Production confidence governor cap enforced.",
  "pre_simulation_target": {
    "away_runs": 3,
    "home_runs": 4,
    "predicted_score_text": "LAA 3 - 4 OAK",
    "confidence": 0.587516,
    "source": "enhanced_prediction_before_inning_simulation"
  },
  "score_source": "enhanced_prediction.pre_simulation_target",
  "final_prediction_synced": true,
  "final_prediction_source": "pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "simulation_score_matches_prediction": false,
  "simulation_reconciliation": {
    "pre_simulation_score": {
      "away_runs": 3,
      "home_runs": 4,
      "score_text": "LAA 3 - 4 OAK",
      "winner": "OAK"
    },
    "final_simulation_score": {
      "away_runs": 4,
      "home_runs": 7,
      "score_text": "LAA 4 - 7 OAK",
      "winner": "OAK"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": 1,
    "home_run_delta": 3,
    "total_run_delta": 4,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}

Savant Batter Quality

Source: data/all_players_stats.csv embedded Savant hitter features. It adjusts team offense through expected production and contact quality, then records coverage so missing hitters are visible.

TeamAppliedOffense FactorRaw Avg FactorCoverage WeightCoveredMissing
Away LAATrue1.01001.01130.888981
Home OAKTrue1.02481.0248190

Away Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
SSZach Neto531.01870.2490neutral0.32100.20600.418012.8037.2089.8022.1031.5031.8011.20-0.6000
RFJo Adell2841.05500.7331neutral0.33300.27000.45208.6045.5090.4017.8026.1022.902.900.8000
1BVaughn Grissom3801.03270.4360neutral0.34400.26100.43507.3045.2090.2013.4019.4010.708.800.8000
2BNick Madrigal2180.9759-0.3212negative_batter_regression0.29200.23100.2810026.3088.709.809.506.3012.50-1.2000
DHOswald Peraza761.00420.0556neutral0.30800.25400.39808.6037.3087.4010.1030.5026.303.90-0.3429
CLogan O'Hoppe2450.9930-0.0931neutral0.28900.20700.363012.2039.1087.5017.1028.4023.407.60-0.1429
3BDenzer Guzman4400.9756-0.3259neutral0.25400.24500.3410042.9089.208.6025.4017.600-0.1143
CFJose Siri1471.03520.4697negative_batter_regression0.36600.26700.499017.1042.9087.4020.4036.1027.608.60-0.8857

Home Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
CShea Langeliers181.10691.4254neutral0.37500.28100.532014.4043.7091.6021.2025.4018.807.800.0857
3BZack Gelof420.9819-0.2416negative_batter_regression0.28800.22200.38507.6042.1089.2017.2028.20255.70-2
1BNick Kurtz51.12031.6036neutral0.39500.25800.513017.9057.7094.2012.4034.4028.7020.40-0.8571
LFTyler Soderstrom601.03340.4452neutral0.32900.24100.418010.7044.2089.8012.5021.6018.3012.70-0.4000
SSJacob Wilson2640.9565-0.5806negative_batter_regression0.27100.26000.32901.9027.5084.108.3015.2011.603.70-0.9714
DHJonah Heim2160.9939-0.0807negative_batter_regression0.30700.24600.39106.4029.5087.2015.2020.7017.108.60-1.1714
RFCarlos Cortes2311.04800.6404neutral0.36500.29000.45308.7040.4089.908.5019.7011.1010.60-0.0571
CFHenry Bolte1450.9847-0.2045negative_batter_regression0.29100.22400.3400650.7091.700.2034.8029.206.20-1.9143
2BJeff McNeil3920.9976-0.0317neutral0.30800.27000.34701.1030.6086.301317.2013.808.800.6571
Raw Savant Batter Quality JSON
{
  "home": {
    "applied": true,
    "offense_factor": 1.0248,
    "raw_average_factor": 1.0248,
    "team_espn_average_rank": 152.56,
    "coverage_weight": 1.0,
    "covered_batters": 9,
    "missing_batters": 0,
    "players": [
      {
        "position": "C",
        "player_id": "669127",
        "player_name": "Shea Langeliers",
        "offense_factor": 1.1069,
        "quality_score": 1.4254,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "669127",
          "espn_id": 42598,
          "player_name": "Shea Langeliers",
          "team": "ATH",
          "role": "batter",
          "espn_rank": 18,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 18,
            "gp_value": 67.0,
            "gp_rank": 117,
            "ab_value": 279.0,
            "ab_rank": 26,
            "r_value": 47.0,
            "r_rank": 16,
            "h_value": 77.0,
            "h_rank": 20,
            "avg_value": 0.2759856,
            "avg_rank": 45.0,
            "2b_value": 15.0,
            "2b_rank": 27,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 18.0,
            "hr_rank": 10,
            "rbi_value": 36.0,
            "rbi_rank": 63,
            "tb_value": 146.0,
            "tb_rank": 465,
            "bb_value": 24.0,
            "bb_rank": 100,
            "so_value": 58.0,
            "so_rank": 91,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.340909,
            "obp_rank": "66",
            "slg_value": 0.5232974,
            "slg_rank": "17",
            "ops_value": 0.8642064,
            "ops_rank": 49.0,
            "war_value": 2.85,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 226.0,
          "k_percent": 18.8,
          "bb_percent": 7.8,
          "woba": 0.372,
          "xwoba": 0.375,
          "xba": 0.281,
          "xslg": 0.532,
          "sweet_spot_percent": 38.3,
          "barrel_batted_rate": 14.4,
          "hard_hit_percent": 43.7,
          "exit_velocity_avg": 91.6,
          "launch_angle_avg": 21.2,
          "whiff_percent": 25.4,
          "swing_percent": 51.2
        },
        "components": {
          "expected_quality": 1.6434,
          "regression_edge": 0.0857,
          "xwoba_edge": 2.0286,
          "xba_edge": 1.2143,
          "xslg_edge": 2.2857,
          "barrel_edge": 1.6889,
          "hard_hit_edge": 0.7429,
          "exit_velocity_edge": 1.12,
          "sweet_spot_edge": 0.8333,
          "launch_angle_hr_bonus": 0.45
        }
      },
      {
        "position": "3B",
        "player_id": "680869",
        "player_name": "Zack Gelof",
        "offense_factor": 0.9819,
        "quality_score": -0.2416,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "680869",
          "espn_id": 4414531,
          "player_name": "Zack Gelof",
          "team": "ATH",
          "role": "batter",
          "espn_rank": 42,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 42,
            "gp_value": 58.0,
            "gp_rank": 185,
            "ab_value": 196.0,
            "ab_rank": 165,
            "r_value": 35.0,
            "r_rank": 73,
            "h_value": 56.0,
            "h_rank": 117,
            "avg_value": 0.2857142,
            "avg_rank": null,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 11.0,
            "hr_rank": 55,
            "rbi_value": 29.0,
            "rbi_rank": 122,
            "tb_value": 100.0,
            "tb_rank": 580,
            "bb_value": 12.0,
            "bb_rank": 253,
            "so_value": 53.0,
            "so_rank": 120,
            "sb_value": 8.0,
            "sb_rank": 55,
            "obp_value": 0.3333333,
            "obp_rank": "-",
            "slg_value": 0.510204,
            "slg_rank": "-",
            "ops_value": 0.8435373,
            "ops_rank": null,
            "war_value": 2.18,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 128.0,
          "k_percent": 25.0,
          "bb_percent": 5.7,
          "woba": 0.365,
          "xwoba": 0.288,
          "xba": 0.222,
          "xslg": 0.385,
          "sweet_spot_percent": 28.3,
          "barrel_batted_rate": 7.6,
          "hard_hit_percent": 42.1,
          "exit_velocity_avg": 89.2,
          "launch_angle_avg": 17.2,
          "whiff_percent": 28.2,
          "swing_percent": 46.4
        },
        "components": {
          "expected_quality": -0.1573,
          "regression_edge": -2.0,
          "xwoba_edge": -0.4571,
          "xba_edge": -0.4714,
          "xslg_edge": 0.1857,
          "barrel_edge": 0.1778,
          "hard_hit_edge": 0.5143,
          "exit_velocity_edge": 0.16,
          "sweet_spot_edge": -0.8333,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "1B",
        "player_id": "701762",
        "player_name": "Nick Kurtz",
        "offense_factor": 1.1203,
        "quality_score": 1.6036,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "701762",
          "espn_id": 4966637,
          "player_name": "Nick Kurtz",
          "team": "ATH",
          "role": "batter",
          "espn_rank": 5,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 5,
            "gp_value": 73.0,
            "gp_rank": 26,
            "ab_value": 264.0,
            "ab_rank": 57,
            "r_value": 53.0,
            "r_rank": 4,
            "h_value": 77.0,
            "h_rank": 20,
            "avg_value": 0.2916666,
            "avg_rank": 17.0,
            "2b_value": 13.0,
            "2b_rank": 61,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 18.0,
            "hr_rank": 10,
            "rbi_value": 57.0,
            "rbi_rank": 1,
            "tb_value": 146.0,
            "tb_rank": 255,
            "bb_value": 68.0,
            "bb_rank": 1,
            "so_value": 96.0,
            "so_rank": 6,
            "sb_value": 7.0,
            "sb_rank": 62,
            "obp_value": 0.4401197,
            "obp_rank": "1",
            "slg_value": 0.5530303,
            "slg_rank": "7",
            "ops_value": 0.99315,
            "ops_rank": 8.0,
            "war_value": 3.77,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 241.0,
          "k_percent": 28.7,
          "bb_percent": 20.4,
          "woba": 0.425,
          "xwoba": 0.395,
          "xba": 0.258,
          "xslg": 0.513,
          "sweet_spot_percent": 38.1,
          "barrel_batted_rate": 17.9,
          "hard_hit_percent": 57.7,
          "exit_velocity_avg": 94.2,
          "launch_angle_avg": 12.4,
          "whiff_percent": 34.4,
          "swing_percent": 41.4
        },
        "components": {
          "expected_quality": 2.0042,
          "regression_edge": -0.8571,
          "xwoba_edge": 2.5,
          "xba_edge": 0.5571,
          "xslg_edge": 2.0143,
          "barrel_edge": 2.4667,
          "hard_hit_edge": 2.5,
          "exit_velocity_edge": 2.16,
          "sweet_spot_edge": 0.8,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "LF",
        "player_id": "691016",
        "player_name": "Tyler Soderstrom",
        "offense_factor": 1.0334,
        "quality_score": 0.4452,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "691016",
          "espn_id": 4686066,
          "player_name": "Tyler Soderstrom",
          "team": "ATH",
          "role": "batter",
          "espn_rank": 60,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 60,
            "gp_value": 71.0,
            "gp_rank": 49,
            "ab_value": 260.0,
            "ab_rank": 70,
            "r_value": 35.0,
            "r_rank": 73,
            "h_value": 62.0,
            "h_rank": 89,
            "avg_value": 0.2384615,
            "avg_rank": 112.0,
            "2b_value": 19.0,
            "2b_rank": 4,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 12.0,
            "hr_rank": 46,
            "rbi_value": 39.0,
            "rbi_rank": 46,
            "tb_value": 121.0,
            "tb_rank": 265,
            "bb_value": 38.0,
            "bb_rank": 28,
            "so_value": 55.0,
            "so_rank": 106,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3366666,
            "obp_rank": "77",
            "slg_value": 0.4653846,
            "slg_rank": "48",
            "ops_value": 0.8020512,
            "ops_rank": 29.0,
            "war_value": 1.85,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 216.0,
          "k_percent": 18.3,
          "bb_percent": 12.7,
          "woba": 0.343,
          "xwoba": 0.329,
          "xba": 0.241,
          "xslg": 0.418,
          "sweet_spot_percent": 28.6,
          "barrel_batted_rate": 10.7,
          "hard_hit_percent": 44.2,
          "exit_velocity_avg": 89.8,
          "launch_angle_avg": 12.5,
          "whiff_percent": 21.6,
          "swing_percent": 46.5
        },
        "components": {
          "expected_quality": 0.5924,
          "regression_edge": -0.4,
          "xwoba_edge": 0.7143,
          "xba_edge": 0.0714,
          "xslg_edge": 0.6571,
          "barrel_edge": 0.8667,
          "hard_hit_edge": 0.8143,
          "exit_velocity_edge": 0.4,
          "sweet_spot_edge": -0.7833,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "SS",
        "player_id": "805779",
        "player_name": "Jacob Wilson",
        "offense_factor": 0.9565,
        "quality_score": -0.5806,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "805779",
          "espn_id": 4719300,
          "player_name": "Jacob Wilson",
          "team": "ATH",
          "role": "batter",
          "espn_rank": 264,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 264,
            "gp_value": 44.0,
            "gp_rank": 272,
            "ab_value": 180.0,
            "ab_rank": 188,
            "r_value": 20.0,
            "r_rank": 213,
            "h_value": 51.0,
            "h_rank": 142,
            "avg_value": 0.2833333,
            "avg_rank": null,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 3.0,
            "hr_rank": 243,
            "rbi_value": 23.0,
            "rbi_rank": 182,
            "tb_value": 69.0,
            "tb_rank": 1413,
            "bb_value": 7.0,
            "bb_rank": 333,
            "so_value": 22.0,
            "so_rank": 331,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.3085106,
            "obp_rank": "-",
            "slg_value": 0.3833333,
            "slg_rank": "-",
            "ops_value": 0.6918439,
            "ops_rank": null,
            "war_value": 0.23,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 165.0,
          "k_percent": 11.6,
          "bb_percent": 3.7,
          "woba": 0.305,
          "xwoba": 0.271,
          "xba": 0.26,
          "xslg": 0.329,
          "sweet_spot_percent": 31.3,
          "barrel_batted_rate": 1.9,
          "hard_hit_percent": 27.5,
          "exit_velocity_avg": 84.1,
          "launch_angle_avg": 8.3,
          "whiff_percent": 15.2,
          "swing_percent": 57.3
        },
        "components": {
          "expected_quality": -0.742,
          "regression_edge": -0.9714,
          "xwoba_edge": -0.9429,
          "xba_edge": 0.6143,
          "xslg_edge": -0.6143,
          "barrel_edge": -1.0889,
          "hard_hit_edge": -1.5714,
          "exit_velocity_edge": -1.88,
          "sweet_spot_edge": -0.3333,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "DH",
        "player_id": "641680",
        "player_name": "Jonah Heim",
        "offense_factor": 0.9939,
        "quality_score": -0.0807,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "641680",
          "espn_id": 33842,
          "player_name": "Jonah Heim",
          "team": "ATH",
          "role": "batter",
          "espn_rank": 216,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 216,
            "gp_value": 31.0,
            "gp_rank": 353,
            "ab_value": 95.0,
            "ab_rank": 334,
            "r_value": 13.0,
            "r_rank": 302,
            "h_value": 24.0,
            "h_rank": 306,
            "avg_value": 0.2526315,
            "avg_rank": null,
            "2b_value": 8.0,
            "2b_rank": 188,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 5.0,
            "hr_rank": 184,
            "rbi_value": 14.0,
            "rbi_rank": 266,
            "tb_value": 47.0,
            "tb_rank": 1434,
            "bb_value": 9.0,
            "bb_rank": 295,
            "so_value": 18.0,
            "so_rank": 370,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3142857,
            "obp_rank": "-",
            "slg_value": 0.4947368,
            "slg_rank": "-",
            "ops_value": 0.8090225,
            "ops_rank": null,
            "war_value": 0.45,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 74.0,
          "k_percent": 17.1,
          "bb_percent": 8.6,
          "woba": 0.348,
          "xwoba": 0.307,
          "xba": 0.246,
          "xslg": 0.391,
          "sweet_spot_percent": 34.6,
          "barrel_batted_rate": 6.4,
          "hard_hit_percent": 29.5,
          "exit_velocity_avg": 87.2,
          "launch_angle_avg": 15.2,
          "whiff_percent": 20.7,
          "swing_percent": 46.5
        },
        "components": {
          "expected_quality": -0.0178,
          "regression_edge": -1.1714,
          "xwoba_edge": 0.0857,
          "xba_edge": 0.2143,
          "xslg_edge": 0.2714,
          "barrel_edge": -0.0889,
          "hard_hit_edge": -1.2857,
          "exit_velocity_edge": -0.64,
          "sweet_spot_edge": 0.2167,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "RF",
        "player_id": "666126",
        "player_name": "Carlos Cortes",
        "offense_factor": 1.048,
        "quality_score": 0.6404,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "666126",
          "espn_id": 41595,
          "player_name": "Carlos Cortes",
          "team": "ATH",
          "role": "batter",
          "espn_rank": 231,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 231,
            "gp_value": 59.0,
            "gp_rank": 181,
            "ab_value": 173.0,
            "ab_rank": 202,
            "r_value": 17.0,
            "r_rank": 240,
            "h_value": 50.0,
            "h_rank": 147,
            "avg_value": 0.2890173,
            "avg_rank": null,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 6.0,
            "hr_rank": 156,
            "rbi_value": 21.0,
            "rbi_rank": 194,
            "tb_value": 79.0,
            "tb_rank": 913,
            "bb_value": 21.0,
            "bb_rank": 138,
            "so_value": 22.0,
            "so_rank": 331,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3737373,
            "obp_rank": "-",
            "slg_value": 0.4566473,
            "slg_rank": "-",
            "ops_value": 0.8303846,
            "ops_rank": null,
            "war_value": 0.37,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 146.0,
          "k_percent": 11.1,
          "bb_percent": 10.6,
          "woba": 0.367,
          "xwoba": 0.365,
          "xba": 0.29,
          "xslg": 0.453,
          "sweet_spot_percent": 35.5,
          "barrel_batted_rate": 8.7,
          "hard_hit_percent": 40.4,
          "exit_velocity_avg": 89.9,
          "launch_angle_avg": 8.5,
          "whiff_percent": 19.7,
          "swing_percent": 43.3
        },
        "components": {
          "expected_quality": 1.1314,
          "regression_edge": -0.0571,
          "xwoba_edge": 1.7429,
          "xba_edge": 1.4714,
          "xslg_edge": 1.1571,
          "barrel_edge": 0.4222,
          "hard_hit_edge": 0.2714,
          "exit_velocity_edge": 0.44,
          "sweet_spot_edge": 0.3667,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "CF",
        "player_id": "703607",
        "player_name": "Henry Bolte",
        "offense_factor": 0.9847,
        "quality_score": -0.2045,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "703607",
          "espn_id": 5080756,
          "player_name": "Henry Bolte",
          "team": "ATH",
          "role": "batter",
          "espn_rank": 145,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 145,
            "gp_value": 32.0,
            "gp_rank": 347,
            "ab_value": 100.0,
            "ab_rank": 318,
            "r_value": 11.0,
            "r_rank": 327,
            "h_value": 31.0,
            "h_rank": 262,
            "avg_value": 0.31,
            "avg_rank": null,
            "2b_value": 5.0,
            "2b_rank": 259,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 2.0,
            "hr_rank": 301,
            "rbi_value": 8.0,
            "rbi_rank": 346,
            "tb_value": 42.0,
            "tb_rank": 1812,
            "bb_value": 7.0,
            "bb_rank": 333,
            "so_value": 33.0,
            "so_rank": 250,
            "sb_value": 6.0,
            "sb_rank": 79,
            "obp_value": 0.3805309,
            "obp_rank": "-",
            "slg_value": 0.42,
            "slg_rank": "-",
            "ops_value": 0.8005309,
            "ops_rank": null,
            "war_value": 0.9,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 41.0,
          "k_percent": 29.2,
          "bb_percent": 6.2,
          "woba": 0.358,
          "xwoba": 0.291,
          "xba": 0.224,
          "xslg": 0.34,
          "sweet_spot_percent": 20.6,
          "barrel_batted_rate": 6.0,
          "hard_hit_percent": 50.7,
          "exit_velocity_avg": 91.7,
          "launch_angle_avg": 0.2,
          "whiff_percent": 34.8,
          "swing_percent": 53.2
        },
        "components": {
          "expected_quality": -0.2169,
          "regression_edge": -1.9143,
          "xwoba_edge": -0.3714,
          "xba_edge": -0.4143,
          "xslg_edge": -0.4571,
          "barrel_edge": -0.1778,
          "hard_hit_edge": 1.7429,
          "exit_velocity_edge": 1.16,
          "sweet_spot_edge": -2.1167,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "2B",
        "player_id": "643446",
        "player_name": "Jeff McNeil",
        "offense_factor": 0.9976,
        "quality_score": -0.0317,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "643446",
          "espn_id": 33900,
          "player_name": "Jeff McNeil",
          "team": "ATH",
          "role": "batter",
          "espn_rank": 392,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 392,
            "gp_value": 67.0,
            "gp_rank": 117,
            "ab_value": 213.0,
            "ab_rank": 138,
            "r_value": 19.0,
            "r_rank": 225,
            "h_value": 50.0,
            "h_rank": 147,
            "avg_value": 0.2347417,
            "avg_rank": 116.0,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 3.0,
            "hr_rank": 243,
            "rbi_value": 19.0,
            "rbi_rank": 216,
            "tb_value": 68.0,
            "tb_rank": 1418,
            "bb_value": 21.0,
            "bb_rank": 138,
            "so_value": 33.0,
            "so_rank": 250,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3096234,
            "obp_rank": "120",
            "slg_value": 0.3192488,
            "slg_rank": "151",
            "ops_value": 0.6288722,
            "ops_rank": 31.0,
            "war_value": -0.09,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 185.0,
          "k_percent": 13.8,
          "bb_percent": 8.8,
          "woba": 0.285,
          "xwoba": 0.308,
          "xba": 0.27,
          "xslg": 0.347,
          "sweet_spot_percent": 38.8,
          "barrel_batted_rate": 1.1,
          "hard_hit_percent": 30.6,
          "exit_velocity_avg": 86.3,
          "launch_angle_avg": 13.0,
          "whiff_percent": 17.2,
          "swing_percent": 54.3
        },
        "components": {
          "expected_quality": -0.1507,
          "regression_edge": 0.6571,
          "xwoba_edge": 0.1143,
          "xba_edge": 0.9,
          "xslg_edge": -0.3571,
          "barrel_edge": -1.2667,
          "hard_hit_edge": -1.1286,
          "exit_velocity_edge": -1.0,
          "sweet_spot_edge": 0.9167,
          "launch_angle_hr_bonus": 0.0
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "away": {
    "applied": true,
    "offense_factor": 1.01,
    "raw_average_factor": 1.0113,
    "team_espn_average_rank": 230.38,
    "coverage_weight": 0.8889,
    "covered_batters": 8,
    "missing_batters": 1,
    "players": [
      {
        "position": "SS",
        "player_id": "687263",
        "player_name": "Zach Neto",
        "offense_factor": 1.0187,
        "quality_score": 0.249,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "687263",
          "espn_id": 4666100,
          "player_name": "Zach Neto",
          "team": "LAA",
          "role": "batter",
          "espn_rank": 53,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 53,
            "gp_value": 72.0,
            "gp_rank": 37,
            "ab_value": 285.0,
            "ab_rank": 15,
            "r_value": 51.0,
            "r_rank": 7,
            "h_value": 65.0,
            "h_rank": 75,
            "avg_value": 0.2280701,
            "avg_rank": 131.0,
            "2b_value": 14.0,
            "2b_rank": 45,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 15.0,
            "hr_rank": 23,
            "rbi_value": 34.0,
            "rbi_rank": 81,
            "tb_value": 128.0,
            "tb_rank": 223,
            "bb_value": 37.0,
            "bb_rank": 32,
            "so_value": 105.0,
            "so_rank": 2,
            "sb_value": 11.0,
            "sb_rank": 28,
            "obp_value": 0.330303,
            "obp_rank": "86",
            "slg_value": 0.4491228,
            "slg_rank": "56",
            "ops_value": 0.7794258,
            "ops_rank": 30.0,
            "war_value": 1.97,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 253.0,
          "k_percent": 31.8,
          "bb_percent": 11.2,
          "woba": 0.342,
          "xwoba": 0.321,
          "xba": 0.206,
          "xslg": 0.418,
          "sweet_spot_percent": 36.5,
          "barrel_batted_rate": 12.8,
          "hard_hit_percent": 37.2,
          "exit_velocity_avg": 89.8,
          "launch_angle_avg": 22.1,
          "whiff_percent": 31.5,
          "swing_percent": 50.1
        },
        "components": {
          "expected_quality": 0.3872,
          "regression_edge": -0.6,
          "xwoba_edge": 0.4857,
          "xba_edge": -0.9286,
          "xslg_edge": 0.6571,
          "barrel_edge": 1.3333,
          "hard_hit_edge": -0.1857,
          "exit_velocity_edge": 0.4,
          "sweet_spot_edge": 0.5333,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "RF",
        "player_id": "666176",
        "player_name": "Jo Adell",
        "offense_factor": 1.055,
        "quality_score": 0.7331,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "666176",
          "espn_id": 40854,
          "player_name": "Jo Adell",
          "team": "LAA",
          "role": "batter",
          "espn_rank": 284,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 284,
            "gp_value": 75.0,
            "gp_rank": 1,
            "ab_value": 293.0,
            "ab_rank": 6,
            "r_value": 35.0,
            "r_rank": 73,
            "h_value": 74.0,
            "h_rank": 36,
            "avg_value": 0.2525597,
            "avg_rank": 81.0,
            "2b_value": 12.0,
            "2b_rank": 80,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 10.0,
            "hr_rank": 69,
            "rbi_value": 41.0,
            "rbi_rank": 36,
            "tb_value": 116.0,
            "tb_rank": 639,
            "bb_value": 9.0,
            "bb_rank": 295,
            "so_value": 72.0,
            "so_rank": 42,
            "sb_value": 3.0,
            "sb_rank": 148,
            "obp_value": 0.2961783,
            "obp_rank": "137",
            "slg_value": 0.3959044,
            "slg_rank": "108",
            "ops_value": 0.6920827,
            "ops_rank": 245.0,
            "war_value": 0.16,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 228.0,
          "k_percent": 22.9,
          "bb_percent": 2.9,
          "woba": 0.305,
          "xwoba": 0.333,
          "xba": 0.27,
          "xslg": 0.452,
          "sweet_spot_percent": 33.6,
          "barrel_batted_rate": 8.6,
          "hard_hit_percent": 45.5,
          "exit_velocity_avg": 90.4,
          "launch_angle_avg": 17.8,
          "whiff_percent": 26.1,
          "swing_percent": 56.5
        },
        "components": {
          "expected_quality": 0.7222,
          "regression_edge": 0.8,
          "xwoba_edge": 0.8286,
          "xba_edge": 0.9,
          "xslg_edge": 1.1429,
          "barrel_edge": 0.4,
          "hard_hit_edge": 1.0,
          "exit_velocity_edge": 0.64,
          "sweet_spot_edge": 0.05,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "1B",
        "player_id": "687093",
        "player_name": "Vaughn Grissom",
        "offense_factor": 1.0327,
        "quality_score": 0.436,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "687093",
          "espn_id": 42503,
          "player_name": "Vaughn Grissom",
          "team": "LAA",
          "role": "batter",
          "espn_rank": 380,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 380,
            "gp_value": 41.0,
            "gp_rank": 296,
            "ab_value": 138.0,
            "ab_rank": 257,
            "r_value": 14.0,
            "r_rank": 287,
            "h_value": 33.0,
            "h_rank": 246,
            "avg_value": 0.2391304,
            "avg_rank": null,
            "2b_value": 10.0,
            "2b_rank": 125,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 4.0,
            "hr_rank": 203,
            "rbi_value": 27.0,
            "rbi_rank": 139,
            "tb_value": 55.0,
            "tb_rank": 1368,
            "bb_value": 14.0,
            "bb_rank": 215,
            "so_value": 17.0,
            "so_rank": 383,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3164556,
            "obp_rank": "-",
            "slg_value": 0.3985507,
            "slg_rank": "-",
            "ops_value": 0.7150063,
            "ops_rank": null,
            "war_value": -0.06,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 121.0,
          "k_percent": 10.7,
          "bb_percent": 8.8,
          "woba": 0.316,
          "xwoba": 0.344,
          "xba": 0.261,
          "xslg": 0.435,
          "sweet_spot_percent": 32.3,
          "barrel_batted_rate": 7.3,
          "hard_hit_percent": 45.2,
          "exit_velocity_avg": 90.2,
          "launch_angle_avg": 13.4,
          "whiff_percent": 19.4,
          "swing_percent": 45.6
        },
        "components": {
          "expected_quality": 0.7915,
          "regression_edge": 0.8,
          "xwoba_edge": 1.1429,
          "xba_edge": 0.6429,
          "xslg_edge": 0.9,
          "barrel_edge": 0.1111,
          "hard_hit_edge": 0.9571,
          "exit_velocity_edge": 0.56,
          "sweet_spot_edge": -0.1667,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "2B",
        "player_id": "663611",
        "player_name": "Nick Madrigal",
        "offense_factor": 0.9759,
        "quality_score": -0.3212,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "663611",
          "espn_id": 41170,
          "player_name": "Nick Madrigal",
          "team": "LAA",
          "role": "batter",
          "espn_rank": 218,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 218,
            "gp_value": 14.0,
            "gp_rank": 448,
            "ab_value": 41.0,
            "ab_rank": 431,
            "r_value": 7.0,
            "r_rank": 385,
            "h_value": 12.0,
            "h_rank": 397,
            "avg_value": 0.2926829,
            "avg_rank": null,
            "2b_value": 1.0,
            "2b_rank": 430,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 0.0,
            "hr_rank": 441,
            "rbi_value": 2.0,
            "rbi_rank": 466,
            "tb_value": 13.0,
            "tb_rank": 2538,
            "bb_value": 6.0,
            "bb_rank": 359,
            "so_value": 3.0,
            "so_rank": 517,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3958333,
            "obp_rank": "-",
            "slg_value": 0.3170731,
            "slg_rank": "-",
            "ops_value": 0.7129064,
            "ops_rank": null,
            "war_value": 0.45,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 0.0,
          "k_percent": 6.3,
          "bb_percent": 12.5,
          "woba": 0.334,
          "xwoba": 0.292,
          "xba": 0.231,
          "xslg": 0.281,
          "sweet_spot_percent": 28.9,
          "barrel_batted_rate": 0.0,
          "hard_hit_percent": 26.3,
          "exit_velocity_avg": 88.7,
          "launch_angle_avg": 9.8,
          "whiff_percent": 9.5,
          "swing_percent": 51.1
        },
        "components": {
          "expected_quality": -0.6347,
          "regression_edge": -1.2,
          "xwoba_edge": -0.3429,
          "xba_edge": -0.2143,
          "xslg_edge": -1.3,
          "barrel_edge": -1.5111,
          "hard_hit_edge": -1.7429,
          "exit_velocity_edge": -0.04,
          "sweet_spot_edge": -0.7333,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "DH",
        "player_id": "672724",
        "player_name": "Oswald Peraza",
        "offense_factor": 1.0042,
        "quality_score": 0.0556,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "672724",
          "espn_id": 42479,
          "player_name": "Oswald Peraza",
          "team": "LAA",
          "role": "batter",
          "espn_rank": 76,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 76,
            "gp_value": 68.0,
            "gp_rank": 104,
            "ab_value": 212.0,
            "ab_rank": 142,
            "r_value": 20.0,
            "r_rank": 213,
            "h_value": 55.0,
            "h_rank": 121,
            "avg_value": 0.2594339,
            "avg_rank": 67.0,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 21.0,
            "rbi_rank": 194,
            "tb_value": 89.0,
            "tb_rank": 666,
            "bb_value": 9.0,
            "bb_rank": 295,
            "so_value": 60.0,
            "so_rank": 85,
            "sb_value": 9.0,
            "sb_rank": 45,
            "obp_value": 0.30837,
            "obp_rank": "123",
            "slg_value": 0.4198113,
            "slg_rank": "83",
            "ops_value": 0.7281813,
            "ops_rank": 206.0,
            "war_value": 1.59,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 152.0,
          "k_percent": 26.3,
          "bb_percent": 3.9,
          "woba": 0.32,
          "xwoba": 0.308,
          "xba": 0.254,
          "xslg": 0.398,
          "sweet_spot_percent": 38.6,
          "barrel_batted_rate": 8.6,
          "hard_hit_percent": 37.3,
          "exit_velocity_avg": 87.4,
          "launch_angle_avg": 10.1,
          "whiff_percent": 30.5,
          "swing_percent": 55.7
        },
        "components": {
          "expected_quality": 0.1493,
          "regression_edge": -0.3429,
          "xwoba_edge": 0.1143,
          "xba_edge": 0.4429,
          "xslg_edge": 0.3714,
          "barrel_edge": 0.4,
          "hard_hit_edge": -0.1714,
          "exit_velocity_edge": -0.56,
          "sweet_spot_edge": 0.8833,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "C",
        "player_id": "681351",
        "player_name": "Logan O'Hoppe",
        "offense_factor": 0.993,
        "quality_score": -0.0931,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "681351",
          "espn_id": 42047,
          "player_name": "Logan O'Hoppe",
          "team": "LAA",
          "role": "batter",
          "espn_rank": 245,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 245,
            "gp_value": 50.0,
            "gp_rank": 239,
            "ab_value": 153.0,
            "ab_rank": 238,
            "r_value": 17.0,
            "r_rank": 240,
            "h_value": 36.0,
            "h_rank": 224,
            "avg_value": 0.2352941,
            "avg_rank": null,
            "2b_value": 8.0,
            "2b_rank": 188,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 3.0,
            "hr_rank": 243,
            "rbi_value": 17.0,
            "rbi_rank": 244,
            "tb_value": 53.0,
            "tb_rank": 1529,
            "bb_value": 13.0,
            "bb_rank": 237,
            "so_value": 40.0,
            "so_rank": 193,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3058823,
            "obp_rank": "-",
            "slg_value": 0.3464052,
            "slg_rank": "-",
            "ops_value": 0.6522875,
            "ops_rank": null,
            "war_value": 0.32,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 119.0,
          "k_percent": 23.4,
          "bb_percent": 7.6,
          "woba": 0.294,
          "xwoba": 0.289,
          "xba": 0.207,
          "xslg": 0.363,
          "sweet_spot_percent": 29.6,
          "barrel_batted_rate": 12.2,
          "hard_hit_percent": 39.1,
          "exit_velocity_avg": 87.5,
          "launch_angle_avg": 17.1,
          "whiff_percent": 28.4,
          "swing_percent": 49.8
        },
        "components": {
          "expected_quality": -0.1769,
          "regression_edge": -0.1429,
          "xwoba_edge": -0.4286,
          "xba_edge": -0.9,
          "xslg_edge": -0.1286,
          "barrel_edge": 1.2,
          "hard_hit_edge": 0.0857,
          "exit_velocity_edge": -0.52,
          "sweet_spot_edge": -0.6167,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "3B",
        "player_id": "694203",
        "player_name": "Denzer Guzman",
        "offense_factor": 0.9756,
        "quality_score": -0.3259,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "694203",
          "espn_id": 4917822,
          "player_name": "Denzer Guzman",
          "team": "LAA",
          "role": "batter",
          "espn_rank": 440,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 440,
            "gp_value": 8.0,
            "gp_rank": 507,
            "ab_value": 34.0,
            "ab_rank": 453,
            "r_value": 3.0,
            "r_rank": 447,
            "h_value": 9.0,
            "h_rank": 421,
            "avg_value": 0.2647058,
            "avg_rank": null,
            "2b_value": 2.0,
            "2b_rank": 387,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 0.0,
            "hr_rank": 441,
            "rbi_value": 5.0,
            "rbi_rank": 401,
            "tb_value": 11.0,
            "tb_rank": 2519,
            "bb_value": 0.0,
            "bb_rank": 521,
            "so_value": 6.0,
            "so_rank": 488,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.2647058,
            "obp_rank": "-",
            "slg_value": 0.3235294,
            "slg_rank": "-",
            "ops_value": 0.5882352,
            "ops_rank": null,
            "war_value": -0.16,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 0.0,
          "k_percent": 17.6,
          "bb_percent": 0.0,
          "woba": 0.258,
          "xwoba": 0.254,
          "xba": 0.245,
          "xslg": 0.341,
          "sweet_spot_percent": 21.4,
          "barrel_batted_rate": 0.0,
          "hard_hit_percent": 42.9,
          "exit_velocity_avg": 89.2,
          "launch_angle_avg": 8.6,
          "whiff_percent": 25.4,
          "swing_percent": 60.4
        },
        "components": {
          "expected_quality": -0.8236,
          "regression_edge": -0.1143,
          "xwoba_edge": -1.4286,
          "xba_edge": 0.1857,
          "xslg_edge": -0.4429,
          "barrel_edge": -1.5111,
          "hard_hit_edge": 0.6286,
          "exit_velocity_edge": 0.16,
          "sweet_spot_edge": -1.9833,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "CF",
        "player_id": "642350",
        "player_name": "Jose Siri",
        "offense_factor": 1.0352,
        "quality_score": 0.4697,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "642350",
          "espn_id": 33954,
          "player_name": "Jose Siri",
          "team": "LAA",
          "role": "batter",
          "espn_rank": 147,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 147,
            "gp_value": 26.0,
            "gp_rank": 382,
            "ab_value": 50.0,
            "ab_rank": 412,
            "r_value": 12.0,
            "r_rank": 310,
            "h_value": 15.0,
            "h_rank": 370,
            "avg_value": 0.3,
            "avg_rank": null,
            "2b_value": 3.0,
            "2b_rank": 356,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 3.0,
            "hr_rank": 243,
            "rbi_value": 12.0,
            "rbi_rank": 292,
            "tb_value": 27.0,
            "tb_rank": 1843,
            "bb_value": 5.0,
            "bb_rank": 382,
            "so_value": 16.0,
            "so_rank": 393,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.375,
            "obp_rank": "-",
            "slg_value": 0.54,
            "slg_rank": "-",
            "ops_value": 0.915,
            "ops_rank": null,
            "war_value": 0.89,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 11.0,
          "k_percent": 27.6,
          "bb_percent": 8.6,
          "woba": 0.397,
          "xwoba": 0.366,
          "xba": 0.267,
          "xslg": 0.499,
          "sweet_spot_percent": 41.7,
          "barrel_batted_rate": 17.1,
          "hard_hit_percent": 42.9,
          "exit_velocity_avg": 87.4,
          "launch_angle_avg": 20.4,
          "whiff_percent": 36.1,
          "swing_percent": 56.5
        },
        "components": {
          "expected_quality": 1.3578,
          "regression_edge": -0.8857,
          "xwoba_edge": 1.7714,
          "xba_edge": 0.8143,
          "xslg_edge": 1.8143,
          "barrel_edge": 2.2889,
          "hard_hit_edge": 0.6286,
          "exit_velocity_edge": -0.56,
          "sweet_spot_edge": 1.4,
          "launch_angle_hr_bonus": 0.0
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "reason": "Baseball Savant hitter xwOBA, xBA, xSLG, exit velocity, launch angle, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted offense; ESPN rank is attached for reporting only"
}

Savant Pitcher Quality

Source: data/all_players_stats.csv embedded Savant pitcher and movement features. Starter quality modifies opposing run scoring and pitcher strikeout/walk/homer expectations.

TeamPitcherAvailableESPN RankQualitySample WtRun PrevK FactorBB FactorHR FactorRegressionxwOBAwOBAK%BB%Whiff%Barrel%HardHit%
Away LAATrue644-0.41600.45001.03540.96271.05131.0496positive_pitcher_regression0.38600.487010.6014.9023.108.6042.90
Home OAKTrue1440.18700.45000.98410.99020.97480.9324neutral0.28500.258020.206.4024.20329.90

Pitch Movement And Arsenal

TeamPitcherMovement AvailablePrimary PitchPitchesVeloSpinAxisHBIVBDropRel XRel ZExtensionArm AngleMovement Score
Away LAATrueNone4585.72222400000000-0.2246
Home OAKTrueNone8891.482286000000000.0978
Run FactorValue
away_runs_vs_home_pitcher0.9928
home_runs_vs_away_pitcher1.0159
home_pitcher_quality_edge0.6030
Raw Savant Pitcher Quality JSON
{
  "applied": true,
  "home_pitcher": {
    "available": true,
    "pitcher_id": "695611",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 25.0,
      "k_percent": 20.2,
      "bb_percent": 6.4,
      "woba": 0.258,
      "xwoba": 0.285,
      "sweet_spot_percent": 31.3,
      "barrel_batted_rate": 3.0,
      "hard_hit_percent": 29.9,
      "avg_best_speed": 77.1636,
      "avg_hyper_speed": 93.5788,
      "whiff_percent": 24.2,
      "swing_percent": 52.9
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": 0.9044,
      "command_and_miss": -0.0829,
      "regression_edge": -0.7714,
      "xwoba_edge": 0.8571,
      "barrel_edge": 0.9556,
      "hard_hit_edge": 1.2,
      "whiff_edge": -0.2143,
      "bb_edge": 0.7,
      "pitch_design_score": 0.0978
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "695611",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 88,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 88,
        "pitch_usage": 0.0,
        "release_speed": 91.47613636363636,
        "release_spin_rate": 2286.431818181818,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 88,
          "pitch_usage": 0.0,
          "release_speed": 91.47613636363636,
          "release_spin_rate": 2286.431818181818,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 91.4761,
        "release_spin_rate": 2286.4318,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": 0.0978,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": 0.6989,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": 0.187,
    "sample_weight": 0.45,
    "run_prevention_factor": 0.9841,
    "strikeout_factor": 0.9902,
    "walk_factor": 0.9748,
    "homer_factor": 0.9324,
    "woba_minus_xwoba": -0.027,
    "regression_flag": "neutral",
    "espn_rank": {
      "available": true,
      "player_id": "695611",
      "espn_id": 5023852,
      "player_name": "Gage Jump",
      "team": "ATH",
      "role": "pitcher",
      "espn_rank": 144,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 144,
        "gp_value": 4.0,
        "gp_rank": 512,
        "gs_value": 4.0,
        "gs_rank": 175,
        "qs_value": 2.0,
        "qs_rank": 109,
        "era_value": 3.0857,
        "era_rank": null,
        "w_value": 2.0,
        "w_rank": 180,
        "l_value": 1.0,
        "l_rank": 275,
        "sv_value": 0.0,
        "sv_rank": 172,
        "hld_value": 0.0,
        "hld_rank": 256,
        "ip_value": 23.1,
        "ip_rank": 341,
        "h_value": 20.0,
        "h_rank": 330,
        "er_value": 8.0,
        "er_rank": 396,
        "hr_value": 0.0,
        "hr_rank": 578,
        "bb_value": 6.0,
        "bb_rank": 436,
        "k_value": 19.0,
        "k_rank": 363,
        "k_per_9_value": 7.328572,
        "k_per_9_rank": 28,
        "whip_value": 1.1142,
        "whip_rank": null,
        "war_value": 0.73,
        "war_rank": null
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "away_pitcher": {
    "available": true,
    "pitcher_id": "696270",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 36.0,
      "k_percent": 10.6,
      "bb_percent": 14.9,
      "woba": 0.487,
      "xwoba": 0.386,
      "sweet_spot_percent": 31.4,
      "barrel_batted_rate": 8.6,
      "hard_hit_percent": 42.9,
      "avg_best_speed": 79.9323,
      "avg_hyper_speed": 95.0739,
      "whiff_percent": 23.1,
      "swing_percent": 53.5
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": -1.428,
      "command_and_miss": -1.18,
      "regression_edge": 2.0,
      "xwoba_edge": -2.0286,
      "barrel_edge": -0.2889,
      "hard_hit_edge": -0.6571,
      "whiff_edge": -0.3714,
      "bb_edge": -1.425,
      "pitch_design_score": -0.2246
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "696270",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 45,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 45,
        "pitch_usage": 0.0,
        "release_speed": 85.71825396825398,
        "release_spin_rate": 2224.492261904762,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 45,
          "pitch_usage": 0.0,
          "release_speed": 85.71825396825398,
          "release_spin_rate": 2224.492261904762,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 85.7183,
        "release_spin_rate": 2224.4923,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": -0.2246,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": -1.6043,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": -0.416,
    "sample_weight": 0.45,
    "run_prevention_factor": 1.0354,
    "strikeout_factor": 0.9627,
    "walk_factor": 1.0513,
    "homer_factor": 1.0496,
    "woba_minus_xwoba": 0.101,
    "regression_flag": "positive_pitcher_regression",
    "espn_rank": {
      "available": true,
      "player_id": "696270",
      "espn_id": 5007859,
      "player_name": "Ryan Johnson",
      "team": "LAA",
      "role": "pitcher",
      "espn_rank": 644,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 644,
        "gp_value": 4.0,
        "gp_rank": 512,
        "gs_value": 1.0,
        "gs_rank": 240,
        "qs_value": 0.0,
        "qs_rank": 175,
        "era_value": 15.12,
        "era_rank": null,
        "w_value": 0.0,
        "w_rank": 404,
        "l_value": 1.0,
        "l_rank": 275,
        "sv_value": 0.0,
        "sv_rank": 172,
        "hld_value": 0.0,
        "hld_rank": 256,
        "ip_value": 8.1,
        "ip_rank": 504,
        "h_value": 15.0,
        "h_rank": 412,
        "er_value": 14.0,
        "er_rank": 225,
        "hr_value": 3.0,
        "hr_rank": 258,
        "bb_value": 7.0,
        "bb_rank": 394,
        "k_value": 5.0,
        "k_rank": 536,
        "k_per_9_value": 5.4,
        "k_per_9_rank": 28,
        "whip_value": 2.64,
        "whip_rank": null,
        "war_value": -0.52,
        "war_rank": null
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "run_factors": {
    "away_runs_vs_home_pitcher": 0.9928,
    "home_runs_vs_away_pitcher": 1.0159,
    "home_pitcher_quality_edge": 0.603
  },
  "score_before": {
    "away_runs": 2.2604,
    "home_runs": 5.057
  },
  "score_after": {
    "away_runs": 2.2442,
    "home_runs": 5.1375,
    "home_win_probability": 0.7568
  },
  "reason": "Baseball Savant xwOBA, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted starter run prevention"
}

Team Form Snapshot

TeamLast-10 W-LWin %R/GRA/GRun DiffStreakOffenseDefense
Away LAA22-430.3381.403.90-160coldaverage
Home OAK19-450.2971.504.10-165coldaverage

Season Run Differential

TeamRecordWin %Run DiffRD/GameAvailable
Away LAA30-450.400-39-0.520True
Home OAK36-370.493-43-0.589True
Signal---0.0690.071applied=False

Recent Head-to-Head

DateMatchupScoreWinnerMarginType
------

Player/Game Reconciliation

LayerABHRHRRBIBBSO
Game target LAA--3----
Game target OAK--4----
Player finalized LAA31940408
Player finalized OAK33940426
Player model fractional LAA32.358.204.361.084.272.367.55
Player model fractional OAK32.717.914.791.484.603.387.03
Simulation box LAA33642437
Simulation box OAK351171729

If player finalized rows and game target disagree, the report now exposes that gap instead of hiding it. Fractional model rows show the unrounded prop layer before box-score realization.

Pitching Snapshot

TeamRolePitcherPre IPPre ERPre SOPre HPre BBWeighted ERAWeighted WHIPBox Sync
Away LAAStarterRyan Johnson3541007.151.66True
Away LAAMiddle RelieverChase Silseth1.2002012.991.26True
Away LAAMiddle RelieverKirby Yates1.1022113.801.20True
Away LAAMiddle RelieverSam Bachman101005.841.59True
Away LAAMiddle RelieverRyan Zeferjahn100003.621.35True
Home OAKStarterGage Jump5.2023223.881.24True
Home OAKMiddle RelieverElvis Alvarado1.1000204.021.08True
Home OAKMiddle RelieverHogan Harris102014.621.37True
Home OAKMiddle RelieverMark Leiter Jr.122203.291.23True
Market-line comparison is not rendered because no local odds or sportsbook line CSV was found in data/. Add a real odds source before using market deltas as a model feature.

Player Boost/Deboost Impact Summary

SideTeamRolePosPlayerDominantChangedBoostedDeboostedBetterWorseLargest MetricLargest DeltaDirectionEffect
homeOAKbatterRFCarlos Cortesbetter115665predicted_RBI2.8100boostbetter
homeOAKbatter1BNick Kurtzworse94536predicted_SO1.6850boostworse
awayLAAbatterCFJose Siriworse116556predicted_RBI1.6300boostbetter
awayLAAbatterLFChristian Moorebetter85362predicted_RBI1.5680boostbetter
homeOAKbatterDHJonah Heimworse105546predicted_SO1.4190boostworse
homeOAKbatter3BZack Gelofworse116556predicted_AB1.3700boostbetter
homeOAKbatterSSJacob Wilsonworse104637predicted_AB-1.3100deboostworse
homeOAKbatter2BJeff McNeilworse114756predicted_H1.3000boostbetter
awayLAAbatter2BNick Madrigalworse113847predicted_AB-1.2500deboostworse
awayLAAbatter3BDenzer Guzmanworse113829predicted_AB-1.2500deboostworse
awayLAApitcherStarterRyan Johnsonworse10101predicted_IP-1.0000deboostworse
awayLAAbatterSSZach Netoworse114738predicted_H-0.9900deboostworse
awayLAApitcherMiddle RelieverRyan Zeferjahnbetter11010predicted_IP0.9000boostbetter
homeOAKbatterLFTyler Soderstrombetter105564predicted_AB-0.8900deboostworse
awayLAAbatter1BVaughn Grissomworse114738predicted_H-0.8800deboostworse
awayLAAbatterDHOswald Perazaworse103728predicted_BB0.8750boostbetter
homeOAKbatterCShea Langeliersdeboosted104655predicted_SO-0.8660deboostbetter
awayLAAbatterCLogan O'Hoppeworse103746predicted_SO-0.8510deboostbetter
homeOAKbatterCFHenry Bolteworse114756predicted_RBI0.6800boostbetter
awayLAAbatterRFJo Adellworse102828predicted_R0.5330boostbetter
homeOAKpitcherStarterGage Jumpworse10101predicted_IP-0.4667deboostworse
homeOAKpitcherMiddle RelieverElvis Alvaradoworse10101predicted_IP-0.2333deboostworse
awayLAApitcherMiddle RelieverChase Silsethbetter11010predicted_IP0.2000boostbetter
awayLAApitcherMiddle RelieverKirby Yatesbetter11010predicted_IP0.1000boostbetter

This table ranks players whose JSON evolution changed materially. Boost/deboost is numeric movement; better/worse is role-aware.

Away Team: LAA

Away Pitcher Deep Analysis

FieldValue
PitcherRyan Johnson
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score-0.4160
ESPN Rank644
Movement AvailableTrue
Primary Pitch-
Movement Score-0.2246
Avg Velo85.7183
Avg Spin2224.4923
HB Inches0
IVB Inches0
Release Extension0
Pre IP3
Pre ER5
Pre H10
Pre BB0
Pre SO4
Season ERA15.1200
Season WHIP2.6400
Role Avg IP3.3330
Recent Avg IP3.3330
Last Start IP3.1000
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "LAA",
    "games": 82,
    "wins": 35,
    "losses": 47,
    "win_pct": 0.4268,
    "runs_scored": 368.0,
    "runs_allowed": 406.0,
    "run_differential": -38.0,
    "run_differential_per_game": -0.4634,
    "avg_runs_scored": 4.4878,
    "avg_runs_allowed": 4.9512,
    "offense_index": 0.9948,
    "defense_index": 0.9111,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.6,
      "avg_runs_allowed": 3.6,
      "run_differential": 20.0
    },
    "available": true,
    "quality_score": -0.0837
  },
  "opponent": {
    "team": "OAK",
    "games": 79,
    "wins": 38,
    "losses": 41,
    "win_pct": 0.481,
    "runs_scored": 370.0,
    "runs_allowed": 419.0,
    "run_differential": -49.0,
    "run_differential_per_game": -0.6203,
    "avg_runs_scored": 4.6835,
    "avg_runs_allowed": 5.3038,
    "offense_index": 1.0382,
    "defense_index": 0.8505,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 7.2,
      "avg_runs_allowed": 7.5,
      "run_differential": -3.0
    },
    "available": true,
    "quality_score": -0.0568
  },
  "edges": {
    "quality_edge": -0.0269,
    "offense_edge": -0.0052,
    "opponent_offense_edge": 0.0382,
    "defense_strength": -0.0889,
    "opponent_defense_weakness": 0.1495,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 0.9947,
    "run_prevention": 1.0163,
    "strikeout": 0.9961
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "696270",
    "profile": {
      "available": true,
      "pitcher_id": "696270",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 36.0,
        "k_percent": 10.6,
        "bb_percent": 14.9,
        "woba": 0.487,
        "xwoba": 0.386,
        "sweet_spot_percent": 31.4,
        "barrel_batted_rate": 8.6,
        "hard_hit_percent": 42.9,
        "avg_best_speed": 79.9323,
        "avg_hyper_speed": 95.0739,
        "whiff_percent": 23.1,
        "swing_percent": 53.5
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -1.428,
        "command_and_miss": -1.18,
        "regression_edge": 2.0,
        "xwoba_edge": -2.0286,
        "barrel_edge": -0.2889,
        "hard_hit_edge": -0.6571,
        "whiff_edge": -0.3714,
        "bb_edge": -1.425,
        "pitch_design_score": -0.2246
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "696270",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 45,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 45,
          "pitch_usage": 0.0,
          "release_speed": 85.71825396825398,
          "release_spin_rate": 2224.492261904762,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 45,
            "pitch_usage": 0.0,
            "release_speed": 85.71825396825398,
            "release_spin_rate": 2224.492261904762,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 85.7183,
          "release_spin_rate": 2224.4923,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.2246,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -1.6043,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": -0.416,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0354,
      "strikeout_factor": 0.9627,
      "walk_factor": 1.0513,
      "homer_factor": 1.0496,
      "woba_minus_xwoba": 0.101,
      "regression_flag": "positive_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "696270",
        "espn_id": 5007859,
        "player_name": "Ryan Johnson",
        "team": "LAA",
        "role": "pitcher",
        "espn_rank": 644,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 644,
          "gp_value": 4.0,
          "gp_rank": 512,
          "gs_value": 1.0,
          "gs_rank": 240,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 15.12,
          "era_rank": null,
          "w_value": 0.0,
          "w_rank": 404,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 8.1,
          "ip_rank": 504,
          "h_value": 15.0,
          "h_rank": 412,
          "er_value": 14.0,
          "er_rank": 225,
          "hr_value": 3.0,
          "hr_rank": 258,
          "bb_value": 7.0,
          "bb_rank": 394,
          "k_value": 5.0,
          "k_rank": 536,
          "k_per_9_value": 5.4,
          "k_per_9_rank": 28,
          "whip_value": 2.64,
          "whip_rank": null,
          "war_value": -0.52,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 6.0,
        "factor": 1.0159,
        "adjusted": 6
      },
      "predicted_H": {
        "original": 7.0,
        "factor": 1.0159,
        "adjusted": 7
      },
      "predicted_BB": {
        "original": 4.0,
        "factor": 1.0231,
        "adjusted": 4
      },
      "predicted_HR": {
        "original": 1.0,
        "factor": 1.0223,
        "adjusted": 1
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 0.9832,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "insufficient_data"
  },
  "pitching": {
    "IP": 8.1,
    "ER": 14,
    "H": 15,
    "BB": 7,
    "SO": 5,
    "HR": 3,
    "ERA": 15.12,
    "WHIP": 2.6399999999999997,
    "K9": 5.3999999999999995,
    "HR9": 3.2399999999999998,
    "games_pitched": 4,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": true
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 4,
    "error_prone": false
  },
  "games_count": 4,
  "latest_game_date": "2026-05-19T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "696270",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 45,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 45,
    "pitch_usage": 0.0,
    "release_speed": 85.71825396825398,
    "release_spin_rate": 2224.492261904762,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 45,
      "pitch_usage": 0.0,
      "release_speed": 85.71825396825398,
      "release_spin_rate": 2224.492261904762,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 85.7183,
    "release_spin_rate": 2224.4923,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.2246,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -1.6043,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 1.0
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 1.655,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.2487,
    "prior_weight": 0.7513
  },
  "role": "pitcher",
  "player_id": "696270",
  "report_date": "20260618_L",
  "season_year": 2026,
  "rows_used": 4,
  "reference_playing_time": 4.0,
  "windows": {
    "last_5": {
      "games": 4,
      "totals": {
        "IP": 8.1,
        "ER": 14.0,
        "R": 14.0,
        "H": 15.0,
        "BB": 7.0,
        "SO": 5.0,
        "HR": 3.0,
        "BF": 47.0,
        "Pitches": 170.0
      },
      "per_game": {
        "IP": 2.0,
        "ER": 3.5,
        "R": 3.5,
        "H": 3.75,
        "BB": 1.75,
        "SO": 1.25,
        "HR": 0.75,
        "BF": 11.75,
        "Pitches": 42.5
      },
      "rates": {
        "ERA": 15.12,
        "WHIP": 2.64,
        "ER_per_IP": 1.68,
        "H_per_IP": 1.8,
        "BB_per_IP": 0.84,
        "SO_per_IP": 0.6,
        "HR_per_IP": 0.36
      }
    },
    "last_10": {
      "games": 4,
      "totals": {
        "IP": 8.1,
        "ER": 14.0,
        "R": 14.0,
        "H": 15.0,
        "BB": 7.0,
        "SO": 5.0,
        "HR": 3.0,
        "BF": 47.0,
        "Pitches": 170.0
      },
      "per_game": {
        "IP": 2.0,
        "ER": 3.5,
        "R": 3.5,
        "H": 3.75,
        "BB": 1.75,
        "SO": 1.25,
        "HR": 0.75,
        "BF": 11.75,
        "Pitches": 42.5
      },
      "rates": {
        "ERA": 15.12,
        "WHIP": 2.64,
        "ER_per_IP": 1.68,
        "H_per_IP": 1.8,
        "BB_per_IP": 0.84,
        "SO_per_IP": 0.6,
        "HR_per_IP": 0.36
      }
    },
    "season": {
      "games": 4,
      "totals": {
        "IP": 8.1,
        "ER": 14.0,
        "R": 14.0,
        "H": 15.0,
        "BB": 7.0,
        "SO": 5.0,
        "HR": 3.0,
        "BF": 47.0,
        "Pitches": 170.0
      },
      "per_game": {
        "IP": 2.0,
        "ER": 3.5,
        "R": 3.5,
        "H": 3.75,
        "BB": 1.75,
        "SO": 1.25,
        "HR": 0.75,
        "BF": 11.75,
        "Pitches": 42.5
      },
      "rates": {
        "ERA": 15.12,
        "WHIP": 2.64,
        "ER_per_IP": 1.68,
        "H_per_IP": 1.8,
        "BB_per_IP": 0.84,
        "SO_per_IP": 0.6,
        "HR_per_IP": 0.36
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 3.2,
    "predicted_ER": 2.782,
    "predicted_H": 4.131,
    "predicted_BB": 1.687,
    "predicted_SO": 2.99,
    "predicted_HR": 0.698,
    "predicted_ERA": 7.1474,
    "predicted_WHIP": 1.6612
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.6674,
  "form_weight": 0.3326,
  "form_reliability": 0.2487,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 1.655,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.2487,
    "prior_weight": 0.7513
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 4.0,
      "form": 3.2,
      "final": 4.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 5.0,
      "form": 2.782,
      "final": 4.2623,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 10.0,
      "form": 4.131,
      "final": 8.0481,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 1.687,
      "final": 0.5611,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 4.0,
      "form": 2.99,
      "final": 3.6641,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.698,
      "final": 0.2321,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 7.1474,
      "final": 7.1474,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.6612,
      "final": 1.6612,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherChase Silseth
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.1328
ESPN Rank83
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1.2000
Pre ER0
Pre H0
Pre BB1
Pre SO2
Season ERA1.7089
Season WHIP1.3671
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "LAA",
    "games": 82,
    "wins": 35,
    "losses": 47,
    "win_pct": 0.4268,
    "runs_scored": 368.0,
    "runs_allowed": 406.0,
    "run_differential": -38.0,
    "run_differential_per_game": -0.4634,
    "avg_runs_scored": 4.4878,
    "avg_runs_allowed": 4.9512,
    "offense_index": 0.9948,
    "defense_index": 0.9111,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.6,
      "avg_runs_allowed": 3.6,
      "run_differential": 20.0
    },
    "available": true,
    "quality_score": -0.0837
  },
  "opponent": {
    "team": "OAK",
    "games": 79,
    "wins": 38,
    "losses": 41,
    "win_pct": 0.481,
    "runs_scored": 370.0,
    "runs_allowed": 419.0,
    "run_differential": -49.0,
    "run_differential_per_game": -0.6203,
    "avg_runs_scored": 4.6835,
    "avg_runs_allowed": 5.3038,
    "offense_index": 1.0382,
    "defense_index": 0.8505,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 7.2,
      "avg_runs_allowed": 7.5,
      "run_differential": -3.0
    },
    "available": true,
    "quality_score": -0.0568
  },
  "edges": {
    "quality_edge": -0.0269,
    "offense_edge": -0.0052,
    "opponent_offense_edge": 0.0382,
    "defense_strength": -0.0889,
    "opponent_defense_weakness": 0.1495,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 0.9947,
    "run_prevention": 1.0163,
    "strikeout": 0.9961
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "681217",
    "profile": {
      "available": true,
      "pitcher_id": "681217",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 75.0,
        "k_percent": 25.4,
        "bb_percent": 13.2,
        "woba": 0.302,
        "xwoba": 0.298,
        "sweet_spot_percent": 39.1,
        "barrel_batted_rate": 8.7,
        "hard_hit_percent": 30.4,
        "avg_best_speed": 75.0588,
        "avg_hyper_speed": 93.1661,
        "whiff_percent": 34.1,
        "swing_percent": 46.4
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.3179,
        "command_and_miss": 0.4064,
        "regression_edge": 0.1143,
        "xwoba_edge": 0.4857,
        "barrel_edge": -0.3111,
        "hard_hit_edge": 1.1286,
        "whiff_edge": 1.2,
        "bb_edge": -1.0,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "681217",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.1328,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9887,
      "strikeout_factor": 1.0291,
      "walk_factor": 1.036,
      "homer_factor": 0.9843,
      "woba_minus_xwoba": 0.004,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "681217",
        "espn_id": 4413990,
        "player_name": "Chase Silseth",
        "team": "LAA",
        "role": "pitcher",
        "espn_rank": 83,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 83,
          "gp_value": 32.0,
          "gp_rank": 31,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 1.7088,
          "era_rank": null,
          "w_value": 1.0,
          "w_rank": 287,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 6.0,
          "hld_rank": 68,
          "ip_value": 26.1,
          "ip_rank": 307,
          "h_value": 21.0,
          "h_rank": 312,
          "er_value": 5.0,
          "er_rank": 496,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 15.0,
          "bb_rank": 191,
          "k_value": 29.0,
          "k_rank": 264,
          "k_per_9_value": 9.911392,
          "k_per_9_rank": 23,
          "whip_value": 1.367,
          "whip_rank": null,
          "war_value": 1.09,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9949,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9949,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0162,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9929,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0131,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.1,
    "ER": 1,
    "H": 7,
    "BB": 2,
    "SO": 13,
    "HR": 1,
    "ERA": 0.9642857142857142,
    "WHIP": 0.9642857142857142,
    "K9": 12.535714285714285,
    "HR9": 0.9642857142857142,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "681217",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.229,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5112,
    "prior_weight": 0.4888
  },
  "role": "pitcher",
  "player_id": "681217",
  "report_date": "20260618_L",
  "season_year": 2026,
  "rows_used": 32,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.2,
        "ER": 1.0,
        "R": 1.0,
        "H": 5.0,
        "BB": 1.0,
        "SO": 8.0,
        "HR": 1.0,
        "BF": 20.0,
        "Pitches": 80.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 1.0,
        "BB": 0.2,
        "SO": 1.6,
        "HR": 0.2,
        "BF": 4.0,
        "Pitches": 16.0
      },
      "rates": {
        "ERA": 1.9286,
        "WHIP": 1.2857,
        "ER_per_IP": 0.21429,
        "H_per_IP": 1.07143,
        "BB_per_IP": 0.21429,
        "SO_per_IP": 1.71429,
        "HR_per_IP": 0.21429
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.1,
        "ER": 1.0,
        "R": 1.0,
        "H": 7.0,
        "BB": 2.0,
        "SO": 13.0,
        "HR": 1.0,
        "BF": 37.0,
        "Pitches": 159.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.1,
        "R": 0.1,
        "H": 0.7,
        "BB": 0.2,
        "SO": 1.3,
        "HR": 0.1,
        "BF": 3.7,
        "Pitches": 15.9
      },
      "rates": {
        "ERA": 0.9643,
        "WHIP": 0.9643,
        "ER_per_IP": 0.10714,
        "H_per_IP": 0.75,
        "BB_per_IP": 0.21429,
        "SO_per_IP": 1.39286,
        "HR_per_IP": 0.10714
      }
    },
    "season": {
      "games": 32,
      "totals": {
        "IP": 26.1,
        "ER": 5.0,
        "R": 6.0,
        "H": 21.0,
        "BB": 15.0,
        "SO": 29.0,
        "HR": 2.0,
        "BF": 114.0,
        "Pitches": 468.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 0.1562,
        "R": 0.1875,
        "H": 0.6562,
        "BB": 0.4688,
        "SO": 0.9062,
        "HR": 0.0625,
        "BF": 3.5625,
        "Pitches": 14.625
      },
      "rates": {
        "ERA": 1.7089,
        "WHIP": 1.3671,
        "ER_per_IP": 0.18987,
        "H_per_IP": 0.79747,
        "BB_per_IP": 0.56962,
        "SO_per_IP": 1.10127,
        "HR_per_IP": 0.07595
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.321,
    "predicted_H": 0.906,
    "predicted_BB": 0.312,
    "predicted_SO": 1.173,
    "predicted_HR": 0.143,
    "predicted_ERA": 2.9945,
    "predicted_WHIP": 1.2617
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5565,
  "form_weight": 0.4435,
  "form_reliability": 0.5112,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.229,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5112,
    "prior_weight": 0.4888
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.321,
      "final": 0.1424,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.906,
      "final": 0.4018,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 0.312,
      "final": 0.6949,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 2.0,
      "form": 1.173,
      "final": 1.6332,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.143,
      "final": 0.0634,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 2.9945,
      "final": 2.9945,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2617,
      "final": 1.2617,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherKirby Yates
RoleMiddle Reliever
Projection Source-
Savant Quality Score-0.1115
ESPN Rank306
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1.1000
Pre ER2
Pre H1
Pre BB1
Pre SO2
Season ERA3.3750
Season WHIP1.0500
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "LAA",
    "games": 82,
    "wins": 35,
    "losses": 47,
    "win_pct": 0.4268,
    "runs_scored": 368.0,
    "runs_allowed": 406.0,
    "run_differential": -38.0,
    "run_differential_per_game": -0.4634,
    "avg_runs_scored": 4.4878,
    "avg_runs_allowed": 4.9512,
    "offense_index": 0.9948,
    "defense_index": 0.9111,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.6,
      "avg_runs_allowed": 3.6,
      "run_differential": 20.0
    },
    "available": true,
    "quality_score": -0.0837
  },
  "opponent": {
    "team": "OAK",
    "games": 79,
    "wins": 38,
    "losses": 41,
    "win_pct": 0.481,
    "runs_scored": 370.0,
    "runs_allowed": 419.0,
    "run_differential": -49.0,
    "run_differential_per_game": -0.6203,
    "avg_runs_scored": 4.6835,
    "avg_runs_allowed": 5.3038,
    "offense_index": 1.0382,
    "defense_index": 0.8505,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 7.2,
      "avg_runs_allowed": 7.5,
      "run_differential": -3.0
    },
    "available": true,
    "quality_score": -0.0568
  },
  "edges": {
    "quality_edge": -0.0269,
    "offense_edge": -0.0052,
    "opponent_offense_edge": 0.0382,
    "defense_strength": -0.0889,
    "opponent_defense_weakness": 0.1495,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 0.9947,
    "run_prevention": 1.0163,
    "strikeout": 0.9961
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "489446",
    "profile": {
      "available": true,
      "pitcher_id": "489446",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 27.0,
        "k_percent": 29.8,
        "bb_percent": 10.5,
        "woba": 0.288,
        "xwoba": 0.314,
        "sweet_spot_percent": 42.4,
        "barrel_batted_rate": 12.1,
        "hard_hit_percent": 60.6,
        "avg_best_speed": 84.3276,
        "avg_hyper_speed": 97.2114,
        "whiff_percent": 30.1,
        "swing_percent": 49.3
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.5997,
        "command_and_miss": 0.6243,
        "regression_edge": -0.7429,
        "xwoba_edge": 0.0286,
        "barrel_edge": -1.0667,
        "hard_hit_edge": -2.5,
        "whiff_edge": 0.6286,
        "bb_edge": -0.325,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "489446",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": -0.1115,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0095,
      "strikeout_factor": 1.0301,
      "walk_factor": 1.0117,
      "homer_factor": 1.083,
      "woba_minus_xwoba": -0.026,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "489446",
        "espn_id": 32623,
        "player_name": "Kirby Yates",
        "team": "LAA",
        "role": "pitcher",
        "espn_rank": 306,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 306,
          "gp_value": 15.0,
          "gp_rank": 228,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 4.05,
          "era_rank": null,
          "w_value": 0.0,
          "w_rank": 404,
          "l_value": 2.0,
          "l_rank": 185,
          "sv_value": 1.0,
          "sv_rank": 86,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 13.1,
          "ip_rank": 448,
          "h_value": 9.0,
          "h_rank": 498,
          "er_value": 6.0,
          "er_rank": 464,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 6.0,
          "bb_rank": 436,
          "k_value": 17.0,
          "k_rank": 386,
          "k_per_9_value": 11.475,
          "k_per_9_rank": 23,
          "whip_value": 1.125,
          "whip_rank": null,
          "war_value": 0.12,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 1.0043,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 1.0043,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0053,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0373,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0135,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.0,
    "ER": 2,
    "H": 4,
    "BB": 4,
    "SO": 10,
    "HR": 0,
    "ERA": 2.0,
    "WHIP": 0.8888888888888888,
    "K9": 10.0,
    "HR9": 0.0,
    "games_pitched": 9,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "489446",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 2.648,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.3462,
    "prior_weight": 0.6538
  },
  "role": "pitcher",
  "player_id": "489446",
  "report_date": "20260618_L",
  "season_year": 2026,
  "rows_used": 14,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.0,
        "ER": 1.0,
        "R": 1.0,
        "H": 2.0,
        "BB": 2.0,
        "SO": 7.0,
        "HR": 0.0,
        "BF": 19.0,
        "Pitches": 78.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.4,
        "BB": 0.4,
        "SO": 1.4,
        "HR": 0.0,
        "BF": 3.8,
        "Pitches": 15.6
      },
      "rates": {
        "ERA": 1.8,
        "WHIP": 0.8,
        "ER_per_IP": 0.2,
        "H_per_IP": 0.4,
        "BB_per_IP": 0.4,
        "SO_per_IP": 1.4,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.2,
        "ER": 3.0,
        "R": 3.0,
        "H": 5.0,
        "BB": 5.0,
        "SO": 11.0,
        "HR": 1.0,
        "BF": 41.0,
        "Pitches": 156.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3,
        "R": 0.3,
        "H": 0.5,
        "BB": 0.5,
        "SO": 1.1,
        "HR": 0.1,
        "BF": 4.1,
        "Pitches": 15.6
      },
      "rates": {
        "ERA": 2.7931,
        "WHIP": 1.0345,
        "ER_per_IP": 0.31034,
        "H_per_IP": 0.51724,
        "BB_per_IP": 0.51724,
        "SO_per_IP": 1.13793,
        "HR_per_IP": 0.10345
      }
    },
    "season": {
      "games": 14,
      "totals": {
        "IP": 13.1,
        "ER": 5.0,
        "R": 5.0,
        "H": 8.0,
        "BB": 6.0,
        "SO": 17.0,
        "HR": 1.0,
        "BF": 56.0,
        "Pitches": 223.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3571,
        "R": 0.3571,
        "H": 0.5714,
        "BB": 0.4286,
        "SO": 1.2143,
        "HR": 0.0714,
        "BF": 4.0,
        "Pitches": 15.9286
      },
      "rates": {
        "ERA": 3.375,
        "WHIP": 1.05,
        "ER_per_IP": 0.375,
        "H_per_IP": 0.6,
        "BB_per_IP": 0.45,
        "SO_per_IP": 1.275,
        "HR_per_IP": 0.075
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.422,
    "predicted_H": 0.803,
    "predicted_BB": 0.394,
    "predicted_SO": 1.057,
    "predicted_HR": 0.113,
    "predicted_ERA": 3.8,
    "predicted_WHIP": 1.1969
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.6262,
  "form_weight": 0.3738,
  "form_reliability": 0.3462,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 2.648,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.3462,
    "prior_weight": 0.6538
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 2.0,
      "form": 0.422,
      "final": 1.4102,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.803,
      "final": 0.9264,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 0.394,
      "final": 0.7735,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 2.0,
      "form": 1.057,
      "final": 1.6475,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 1.0,
      "form": 0.113,
      "final": 0.6685,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.8,
      "final": 3.8,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1969,
      "final": 1.1969,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherSam Bachman
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.2567
ESPN Rank132
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H0
Pre BB0
Pre SO1
Season ERA3.3061
Season WHIP1.2245
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "LAA",
    "games": 82,
    "wins": 35,
    "losses": 47,
    "win_pct": 0.4268,
    "runs_scored": 368.0,
    "runs_allowed": 406.0,
    "run_differential": -38.0,
    "run_differential_per_game": -0.4634,
    "avg_runs_scored": 4.4878,
    "avg_runs_allowed": 4.9512,
    "offense_index": 0.9948,
    "defense_index": 0.9111,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.6,
      "avg_runs_allowed": 3.6,
      "run_differential": 20.0
    },
    "available": true,
    "quality_score": -0.0837
  },
  "opponent": {
    "team": "OAK",
    "games": 79,
    "wins": 38,
    "losses": 41,
    "win_pct": 0.481,
    "runs_scored": 370.0,
    "runs_allowed": 419.0,
    "run_differential": -49.0,
    "run_differential_per_game": -0.6203,
    "avg_runs_scored": 4.6835,
    "avg_runs_allowed": 5.3038,
    "offense_index": 1.0382,
    "defense_index": 0.8505,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 7.2,
      "avg_runs_allowed": 7.5,
      "run_differential": -3.0
    },
    "available": true,
    "quality_score": -0.0568
  },
  "edges": {
    "quality_edge": -0.0269,
    "offense_edge": -0.0052,
    "opponent_offense_edge": 0.0382,
    "defense_strength": -0.0889,
    "opponent_defense_weakness": 0.1495,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 0.9947,
    "run_prevention": 1.0163,
    "strikeout": 0.9961
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "696147",
    "profile": {
      "available": true,
      "pitcher_id": "696147",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 98.0,
        "k_percent": 25.7,
        "bb_percent": 12.5,
        "woba": 0.3,
        "xwoba": 0.282,
        "sweet_spot_percent": 30.5,
        "barrel_batted_rate": 5.0,
        "hard_hit_percent": 32.9,
        "avg_best_speed": 75.7202,
        "avg_hyper_speed": 93.0253,
        "whiff_percent": 35.0,
        "swing_percent": 43.6
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.6922,
        "command_and_miss": 0.5057,
        "regression_edge": 0.5143,
        "xwoba_edge": 0.9429,
        "barrel_edge": 0.5111,
        "hard_hit_edge": 0.7714,
        "whiff_edge": 1.3286,
        "bb_edge": -0.825,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "696147",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.2567,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9782,
      "strikeout_factor": 1.0321,
      "walk_factor": 1.0297,
      "homer_factor": 0.955,
      "woba_minus_xwoba": 0.018,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "696147",
        "espn_id": 4621489,
        "player_name": "Sam Bachman",
        "team": "LAA",
        "role": "pitcher",
        "espn_rank": 132,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 132,
          "gp_value": 26.0,
          "gp_rank": 116,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 3.3061,
          "era_rank": null,
          "w_value": 1.0,
          "w_rank": 287,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 11.0,
          "hld_rank": 12,
          "ip_value": 32.2,
          "ip_rank": 213,
          "h_value": 23.0,
          "h_rank": 290,
          "er_value": 12.0,
          "er_rank": 266,
          "hr_value": 4.0,
          "hr_rank": 199,
          "bb_value": 17.0,
          "bb_rank": 157,
          "k_value": 35.0,
          "k_rank": 199,
          "k_per_9_value": 9.642858,
          "k_per_9_rank": 25,
          "whip_value": 1.2244,
          "whip_rank": null,
          "war_value": 0.76,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 1.0,
        "factor": 0.9902,
        "adjusted": 1
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9902,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0134,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9798,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0144,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.1,
    "ER": 5,
    "H": 11,
    "BB": 7,
    "SO": 11,
    "HR": 2,
    "ERA": 4.35483870967742,
    "WHIP": 1.741935483870968,
    "K9": 9.580645161290324,
    "HR9": 1.741935483870968,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": true
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-14T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "696147",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.487,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5647,
    "prior_weight": 0.4353
  },
  "role": "pitcher",
  "player_id": "696147",
  "report_date": "20260618_L",
  "season_year": 2026,
  "rows_used": 26,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.1,
        "ER": 5.0,
        "R": 5.0,
        "H": 6.0,
        "BB": 3.0,
        "SO": 6.0,
        "HR": 2.0,
        "BF": 22.0,
        "Pitches": 80.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 1.0,
        "R": 1.0,
        "H": 1.2,
        "BB": 0.6,
        "SO": 1.2,
        "HR": 0.4,
        "BF": 4.4,
        "Pitches": 16.0
      },
      "rates": {
        "ERA": 10.3846,
        "WHIP": 2.0769,
        "ER_per_IP": 1.15385,
        "H_per_IP": 1.38462,
        "BB_per_IP": 0.69231,
        "SO_per_IP": 1.38462,
        "HR_per_IP": 0.46154
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.1,
        "ER": 5.0,
        "R": 5.0,
        "H": 11.0,
        "BB": 7.0,
        "SO": 11.0,
        "HR": 2.0,
        "BF": 49.0,
        "Pitches": 175.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.5,
        "R": 0.5,
        "H": 1.1,
        "BB": 0.7,
        "SO": 1.1,
        "HR": 0.2,
        "BF": 4.9,
        "Pitches": 17.5
      },
      "rates": {
        "ERA": 4.3548,
        "WHIP": 1.7419,
        "ER_per_IP": 0.48387,
        "H_per_IP": 1.06452,
        "BB_per_IP": 0.67742,
        "SO_per_IP": 1.06452,
        "HR_per_IP": 0.19355
      }
    },
    "season": {
      "games": 26,
      "totals": {
        "IP": 32.2,
        "ER": 12.0,
        "R": 12.0,
        "H": 23.0,
        "BB": 17.0,
        "SO": 35.0,
        "HR": 4.0,
        "BF": 136.0,
        "Pitches": 511.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.4615,
        "R": 0.4615,
        "H": 0.8846,
        "BB": 0.6538,
        "SO": 1.3462,
        "HR": 0.1538,
        "BF": 5.2308,
        "Pitches": 19.6538
      },
      "rates": {
        "ERA": 3.3061,
        "WHIP": 1.2245,
        "ER_per_IP": 0.36735,
        "H_per_IP": 0.70408,
        "BB_per_IP": 0.52041,
        "SO_per_IP": 1.07143,
        "HR_per_IP": 0.12245
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.673,
    "predicted_H": 1.106,
    "predicted_BB": 0.547,
    "predicted_SO": 1.133,
    "predicted_HR": 0.242,
    "predicted_ERA": 5.8354,
    "predicted_WHIP": 1.5924
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5339,
  "form_weight": 0.4661,
  "form_reliability": 0.5647,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.487,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5647,
    "prior_weight": 0.4353
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.673,
      "final": 0.3137,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 1.106,
      "final": 0.5155,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.547,
      "final": 0.2549,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 1.133,
      "final": 1.062,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.242,
      "final": 0.1128,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 5.8354,
      "final": 5.8354,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.5924,
      "final": 1.5924,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherRyan Zeferjahn
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.1050
ESPN Rank497
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H0
Pre BB0
Pre SO0
Season ERA4.9091
Season WHIP1.3636
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "LAA",
    "games": 82,
    "wins": 35,
    "losses": 47,
    "win_pct": 0.4268,
    "runs_scored": 368.0,
    "runs_allowed": 406.0,
    "run_differential": -38.0,
    "run_differential_per_game": -0.4634,
    "avg_runs_scored": 4.4878,
    "avg_runs_allowed": 4.9512,
    "offense_index": 0.9948,
    "defense_index": 0.9111,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.6,
      "avg_runs_allowed": 3.6,
      "run_differential": 20.0
    },
    "available": true,
    "quality_score": -0.0837
  },
  "opponent": {
    "team": "OAK",
    "games": 79,
    "wins": 38,
    "losses": 41,
    "win_pct": 0.481,
    "runs_scored": 370.0,
    "runs_allowed": 419.0,
    "run_differential": -49.0,
    "run_differential_per_game": -0.6203,
    "avg_runs_scored": 4.6835,
    "avg_runs_allowed": 5.3038,
    "offense_index": 1.0382,
    "defense_index": 0.8505,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 7.2,
      "avg_runs_allowed": 7.5,
      "run_differential": -3.0
    },
    "available": true,
    "quality_score": -0.0568
  },
  "edges": {
    "quality_edge": -0.0269,
    "offense_edge": -0.0052,
    "opponent_offense_edge": 0.0382,
    "defense_strength": -0.0889,
    "opponent_defense_weakness": 0.1495,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 0.9947,
    "run_prevention": 1.0163,
    "strikeout": 0.9961
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "666171",
    "profile": {
      "available": true,
      "pitcher_id": "666171",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 107.0,
        "k_percent": 28.2,
        "bb_percent": 16.1,
        "woba": 0.297,
        "xwoba": 0.302,
        "sweet_spot_percent": 28.9,
        "barrel_batted_rate": 5.3,
        "hard_hit_percent": 36.8,
        "avg_best_speed": 79.7571,
        "avg_hyper_speed": 93.407,
        "whiff_percent": 30.5,
        "swing_percent": 38.7
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.3209,
        "command_and_miss": 0.2614,
        "regression_edge": -0.1429,
        "xwoba_edge": 0.3714,
        "barrel_edge": 0.4444,
        "hard_hit_edge": 0.2143,
        "whiff_edge": 0.6857,
        "bb_edge": -1.725,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "666171",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.105,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9911,
      "strikeout_factor": 1.027,
      "walk_factor": 1.0621,
      "homer_factor": 0.9751,
      "woba_minus_xwoba": -0.005,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "666171",
        "espn_id": 4722057,
        "player_name": "Ryan Zeferjahn",
        "team": "LAA",
        "role": "pitcher",
        "espn_rank": 497,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 497,
          "gp_value": 28.0,
          "gp_rank": 95,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 4.909,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 3.0,
          "l_rank": 110,
          "sv_value": 2.0,
          "sv_rank": 56,
          "hld_value": 5.0,
          "hld_rank": 87,
          "ip_value": 33.0,
          "ip_rank": 208,
          "h_value": 20.0,
          "h_rank": 330,
          "er_value": 18.0,
          "er_rank": 171,
          "hr_value": 3.0,
          "hr_rank": 258,
          "bb_value": 25.0,
          "bb_rank": 54,
          "k_value": 42.0,
          "k_rank": 146,
          "k_per_9_value": 11.454545,
          "k_per_9_rank": 18,
          "whip_value": 1.3636,
          "whip_rank": null,
          "war_value": -0.11,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.996,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.996,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0279,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9888,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0121,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.2,
    "ER": 6,
    "H": 6,
    "BB": 10,
    "SO": 13,
    "HR": 3,
    "ERA": 5.586206896551724,
    "WHIP": 1.6551724137931036,
    "K9": 12.10344827586207,
    "HR9": 2.793103448275862,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": true
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-14T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "666171",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.553,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5672,
    "prior_weight": 0.4328
  },
  "role": "pitcher",
  "player_id": "666171",
  "report_date": "20260618_L",
  "season_year": 2026,
  "rows_used": 28,
  "reference_playing_time": 0.1,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.1,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.0,
        "BB": 6.0,
        "SO": 10.0,
        "HR": 0.0,
        "BF": 22.0,
        "Pitches": 99.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.0,
        "BB": 1.2,
        "SO": 2.0,
        "HR": 0.0,
        "BF": 4.4,
        "Pitches": 19.8
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 1.125,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.0,
        "BB_per_IP": 1.125,
        "SO_per_IP": 1.875,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.2,
        "ER": 6.0,
        "R": 6.0,
        "H": 6.0,
        "BB": 10.0,
        "SO": 13.0,
        "HR": 3.0,
        "BF": 45.0,
        "Pitches": 195.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.6,
        "R": 0.6,
        "H": 0.6,
        "BB": 1.0,
        "SO": 1.3,
        "HR": 0.3,
        "BF": 4.5,
        "Pitches": 19.5
      },
      "rates": {
        "ERA": 5.5862,
        "WHIP": 1.6552,
        "ER_per_IP": 0.62069,
        "H_per_IP": 0.62069,
        "BB_per_IP": 1.03448,
        "SO_per_IP": 1.34483,
        "HR_per_IP": 0.31034
      }
    },
    "season": {
      "games": 28,
      "totals": {
        "IP": 33.0,
        "ER": 18.0,
        "R": 20.0,
        "H": 20.0,
        "BB": 25.0,
        "SO": 42.0,
        "HR": 3.0,
        "BF": 150.0,
        "Pitches": 635.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.6429,
        "R": 0.7143,
        "H": 0.7143,
        "BB": 0.8929,
        "SO": 1.5,
        "HR": 0.1071,
        "BF": 5.3571,
        "Pitches": 22.6786
      },
      "rates": {
        "ERA": 4.9091,
        "WHIP": 1.3636,
        "ER_per_IP": 0.54545,
        "H_per_IP": 0.60606,
        "BB_per_IP": 0.75758,
        "SO_per_IP": 1.27273,
        "HR_per_IP": 0.09091
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 0.2,
    "predicted_ER": 0.301,
    "predicted_H": 0.46,
    "predicted_BB": 0.551,
    "predicted_SO": 0.971,
    "predicted_HR": 0.101,
    "predicted_ERA": 3.617,
    "predicted_WHIP": 1.3492
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5329,
  "form_weight": 0.4671,
  "form_reliability": 0.5672,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.553,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5672,
    "prior_weight": 0.4328
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 0.1,
      "form": 0.2,
      "final": 0.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.301,
      "final": 0.1406,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.46,
      "final": 0.2149,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.551,
      "final": 0.2574,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 0.971,
      "final": 0.4536,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.101,
      "final": 0.0472,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.617,
      "final": 3.617,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.3492,
      "final": 1.3492,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Zach Neto (687263) · BATTER · SS · Team LAA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 272
All-history rows before 20260618: 272
System season_avg: 0.2280
Data season_avg (2026 season-to-date): 0.2386
Diff (system - data): -0.0106
System opponent_avg: 0.1250

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1940.0000.000Hitting_2B0.2390.000-0.2390.000
predicted_3B0.0280.0000.000Hitting_3B0.0220.000-0.0220.000
predicted_AB4.4705.0004.000Hitting_AB3.9603.0001.0402.000
predicted_AVG0.2200.0000.250Hitting_AVG0.2390.667-0.239-0.667
predicted_BB0.5140.0000.000Hitting_BB0.5851.000-0.585-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0960.000-0.0960.000
predicted_H0.9900.0001.000Hitting_H0.9452.000-0.945-2.000
predicted_HR0.2300.0000.000Hitting_HR0.1841.000-0.184-1.000
predicted_OBP0.3080.0000.250Hitting_OBP0.3470.750-0.347-0.750
predicted_R0.7080.0001.000Hitting_R0.7281.000-0.728-1.000
predicted_RBI0.5000.0000.000Hitting_RBI0.4891.000-0.489-1.000
predicted_SLG0.4470.0000.250Hitting_SLG0.4491.667-0.449-1.667
predicted_SO1.4582.0001.000Hitting_SO1.4121.0000.5881.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics4
Deboosted Metrics7
Better Metrics3
Worse Metrics8
Biggest Boostpredicted_SO: 1.4580 -> 2.0000 (boost 0.5420, worse)
Biggest Deboostpredicted_H: 0.9900 -> 0.0000 (deboost -0.9900, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend32112predicted_SO: 1.4580 -> 1.5159 (boost 0.0579, worse)predicted_AB: 4.4700 -> 4.3180 (deboost -0.1520, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3069 -> 0.3011 (deboost -0.0058, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling70716-predicted_SO: 1.5174 -> 1.0000 (deboost -0.5174, better)AB rounded to 4 (raw=4.47), rates preserved: AVG=0.218 HR/AB=0.056
5consistency_constraints11010predicted_R: 0.7251 -> 1.0000 (boost 0.2749, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2254 -> 0.2500 (boost 0.0246, better)predicted_SLG: 0.4582 -> 0.2500 (deboost -0.2082, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference42213predicted_AB: 4.0000 -> 5.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.2500 -> 0.4582 (boost 0.2082, better)predicted_AVG: 0.2500 -> 0.2254 (deboost -0.0246, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "687263",
  "player_name": "Zach Neto",
  "position": "SS",
  "team": "LAA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.194,
        "predicted_3B": 0.028,
        "predicted_AB": 4.47,
        "predicted_AVG": 0.22,
        "predicted_BB": 0.514,
        "predicted_H": 0.99,
        "predicted_HR": 0.23,
        "predicted_OBP": 0.308,
        "predicted_R": 0.708,
        "predicted_RBI": 0.5,
        "predicted_SLG": 0.447,
        "predicted_SO": 1.458
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1659,
        "predicted_3B": 0.0455,
        "predicted_AB": 4.318,
        "predicted_AVG": 0.2223,
        "predicted_BB": 0.468,
        "predicted_H": 0.9632,
        "predicted_HBP": 0.076,
        "predicted_HR": 0.2462,
        "predicted_OBP": 0.3069,
        "predicted_R": 0.7144,
        "predicted_RBI": 0.494,
        "predicted_SLG": 0.4633,
        "predicted_SO": 1.5159
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.194,
          "after": 0.1659,
          "delta": -0.0281,
          "percent_delta": -0.1448,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.028,
          "after": 0.0455,
          "delta": 0.0175,
          "percent_delta": 0.625,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.47,
          "after": 4.318,
          "delta": -0.152,
          "percent_delta": -0.034,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.22,
          "after": 0.2223,
          "delta": 0.0023,
          "percent_delta": 0.0105,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.514,
          "after": 0.468,
          "delta": -0.046,
          "percent_delta": -0.0895,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.99,
          "after": 0.9632,
          "delta": -0.0268,
          "percent_delta": -0.0271,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.23,
          "after": 0.2462,
          "delta": 0.0162,
          "percent_delta": 0.0704,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.308,
          "after": 0.3069,
          "delta": -0.0011,
          "percent_delta": -0.0036,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.708,
          "after": 0.7144,
          "delta": 0.0064,
          "percent_delta": 0.009,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5,
          "after": 0.494,
          "delta": -0.006,
          "percent_delta": -0.012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.447,
          "after": 0.4633,
          "delta": 0.0163,
          "percent_delta": 0.0365,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.458,
          "after": 1.5159,
          "delta": 0.0579,
          "percent_delta": 0.0397,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.458,
          "after": 1.5159,
          "delta": 0.0579,
          "percent_delta": 0.0397,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.47,
          "after": 4.318,
          "delta": -0.152,
          "percent_delta": -0.034,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 72
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1659,
        "predicted_3B": 0.0455,
        "predicted_AB": 4.318,
        "predicted_AVG": 0.2254,
        "predicted_BB": 0.4675,
        "predicted_H": 0.9732,
        "predicted_HBP": 0.076,
        "predicted_HR": 0.2494,
        "predicted_OBP": 0.3011,
        "predicted_R": 0.7251,
        "predicted_RBI": 0.5014,
        "predicted_SLG": 0.4582,
        "predicted_SO": 1.5174
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1659,
          "after": 0.1659,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0455,
          "after": 0.0455,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.318,
          "after": 4.318,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2223,
          "after": 0.2254,
          "delta": 0.0031,
          "percent_delta": 0.0139,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.468,
          "after": 0.4675,
          "delta": -0.0005,
          "percent_delta": -0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9632,
          "after": 0.9732,
          "delta": 0.01,
          "percent_delta": 0.0104,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.076,
          "after": 0.076,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2462,
          "after": 0.2494,
          "delta": 0.0032,
          "percent_delta": 0.013,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3069,
          "after": 0.3011,
          "delta": -0.0058,
          "percent_delta": -0.0189,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.7144,
          "after": 0.7251,
          "delta": 0.0107,
          "percent_delta": 0.015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.494,
          "after": 0.5014,
          "delta": 0.0074,
          "percent_delta": 0.015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4633,
          "after": 0.4582,
          "delta": -0.0051,
          "percent_delta": -0.011,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.5159,
          "after": 1.5174,
          "delta": 0.0015,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3069,
          "after": 0.3011,
          "delta": -0.0058,
          "percent_delta": -0.0189,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.47), rates preserved: AVG=0.218 HR/AB=0.056",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1659,
          "after": 0.0,
          "delta": -0.1659,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0455,
          "after": 0.0,
          "delta": -0.0455,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.318,
          "after": 4.0,
          "delta": -0.318,
          "percent_delta": -0.0736,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4675,
          "after": 0.0,
          "delta": -0.4675,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9732,
          "after": 1.0,
          "delta": 0.0268,
          "percent_delta": 0.0275,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.076,
          "after": 0.0,
          "delta": -0.076,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.2494,
          "after": 0.0,
          "delta": -0.2494,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5014,
          "after": 0.0,
          "delta": -0.5014,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.5174,
          "after": 1.0,
          "delta": -0.5174,
          "percent_delta": -0.341,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 0,
        "deboosted_metrics": 7,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.5174,
          "after": 1.0,
          "delta": -0.5174,
          "percent_delta": -0.341,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.7251,
          "after": 1.0,
          "delta": 0.2749,
          "percent_delta": 0.3791,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.7251,
          "after": 1.0,
          "delta": 0.2749,
          "percent_delta": 0.3791,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2254,
          "after": 0.25,
          "delta": 0.0246,
          "percent_delta": 0.1091,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3011,
          "after": 0.25,
          "delta": -0.0511,
          "percent_delta": -0.1697,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4582,
          "after": 0.25,
          "delta": -0.2082,
          "percent_delta": -0.4544,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2254,
          "after": 0.25,
          "delta": 0.0246,
          "percent_delta": 0.1091,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4582,
          "after": 0.25,
          "delta": -0.2082,
          "percent_delta": -0.4544,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 5.0,
          "delta": 1.0,
          "percent_delta": 0.25,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 2,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 5.0,
          "delta": 1.0,
          "percent_delta": 0.25,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.2254,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3011,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4582,
        "predicted_SO": 2.0,
        "predicted_SS": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2254,
          "delta": -0.0246,
          "percent_delta": -0.0985,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3011,
          "delta": 0.0511,
          "percent_delta": 0.2043,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4582,
          "delta": 0.2082,
          "percent_delta": 0.8326,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4582,
          "delta": 0.2082,
          "percent_delta": 0.8326,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2254,
          "delta": -0.0246,
          "percent_delta": -0.0985,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.194,
        "after": 0.0,
        "delta": -0.194,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.028,
        "after": 0.0,
        "delta": -0.028,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.47,
        "after": 5.0,
        "delta": 0.53,
        "percent_delta": 0.1186,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.22,
        "after": 0.2254,
        "delta": 0.0054,
        "percent_delta": 0.0245,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.514,
        "after": 0.0,
        "delta": -0.514,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.99,
        "after": 0.0,
        "delta": -0.99,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.23,
        "after": 0.0,
        "delta": -0.23,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.308,
        "after": 0.3011,
        "delta": -0.0069,
        "percent_delta": -0.0224,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.708,
        "after": 0.0,
        "delta": -0.708,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.5,
        "after": 0.0,
        "delta": -0.5,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.447,
        "after": 0.4582,
        "delta": 0.0112,
        "percent_delta": 0.0251,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.458,
        "after": 2.0,
        "delta": 0.542,
        "percent_delta": 0.3717,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 4,
      "deboosted_metrics": 7,
      "better_metrics": 3,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 1.458,
        "after": 2.0,
        "delta": 0.542,
        "percent_delta": 0.3717,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.99,
        "after": 0.0,
        "delta": -0.99,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.194-
predicted_3B0.028-
predicted_AB4.470-
predicted_AVG0.220-
predicted_BB0.514-
predicted_H0.990-
predicted_HR0.230-
predicted_OBP0.308-
predicted_R0.708-
predicted_RBI0.500-
predicted_SLG0.447-
predicted_SO1.458-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.166-0.028
predicted_3B0.0450.017
predicted_AB4.318-0.152
predicted_AVG0.2220.002
predicted_BB0.468-0.046
predicted_H0.963-0.027
predicted_HBP0.076-
predicted_HR0.2460.016
predicted_OBP0.307-0.001
predicted_R0.7140.006
predicted_RBI0.494-0.006
predicted_SLG0.4630.016
predicted_SO1.5160.058
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1660.000
predicted_3B0.0450.000
predicted_AB4.3180.000
predicted_AVG0.2250.003
predicted_BB0.468-0.001
predicted_H0.9730.010
predicted_HBP0.0760.000
predicted_HR0.2490.003
predicted_OBP0.301-0.006
predicted_R0.7250.011
predicted_RBI0.5010.007
predicted_SLG0.458-0.005
predicted_SO1.5170.002
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.47), rates preserved: AVG=0.218 HR/AB=0.056

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.166
predicted_3B0.000-0.045
predicted_AB4.000-0.318
predicted_AVG0.2500.025
predicted_BB0.000-0.468
predicted_H1.0000.027
predicted_HR0.000-0.249
predicted_OBP0.250-0.051
predicted_R1.0000.275
predicted_RBI0.000-0.501
predicted_SLG0.250-0.208
predicted_SO1.000-0.517
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB5.0001.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R0.000-1.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 72
Reference playing time: 4.470
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-22.0005.0000.0001.0002.0002.0004.0001.0009.0000.22730.26090.59090.22730.09090.09090.04540.4091
last_100.2010-44.0009.0000.0001.0004.0006.0008.0003.00022.0000.20450.27080.52270.20460.09090.13640.06820.5000
season0.6072-285.00065.00014.0002.00015.00034.00051.00037.000105.0000.22810.33030.44910.22810.05260.11930.12980.3684
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1280
predicted_3B0.0690
predicted_AB4.1130
predicted_AVG0.2255
predicted_BB0.4060
predicted_H0.9270
predicted_HBP0.0760
predicted_HR0.2680
predicted_OBP0.3053
predicted_R0.7230
predicted_RBI0.4860
predicted_SLG0.4853
predicted_SO1.5940
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.19400.12800.1659model_form_blend
predicted_3B0.02800.06900.0455model_form_blend
predicted_AB4.47004.11304.3180model_form_blend
predicted_AVG0.22000.22550.2223model_form_blend
predicted_BB0.51400.40600.4680model_form_blend
predicted_H0.99000.92700.9632model_form_blend
predicted_HBP-0.07600.0760form_only
predicted_HR0.23000.26800.2462model_form_blend
predicted_OBP0.30800.30530.3069model_form_blend
predicted_R0.70800.72300.7144model_form_blend
predicted_RBI0.50000.48600.4940model_form_blend
predicted_SLG0.44700.48530.4633model_form_blend
predicted_SO1.45801.59401.5159model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date272
Season rows before report date272
Report year2026
Profile rows used72
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB5
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO2
SF0
HBP0
season_avg0.228

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.667
Hitting_BB1
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R1
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB5
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedSS
gameID20260617_LAA@ARI
game_typefull
mlbID687263
playerID687263
playerNameZach Neto
posSS
startedTrue
startingPositionSS
teamLAA
teamID13
game_date2026-06-17
sl_k_percent31.8
sl_bb_percent11.2
sl_woba0.342
sl_xwoba0.321
sl_xba0.206
sl_xslg0.418
sl_sweet_spot_percent36.5
sl_barrel_batted_rate12.8
sl_hard_hit_percent37.2
sl_exit_velocity_avg89.8
sl_launch_angle_avg22.1
sl_whiff_percent31.5
sl_swing_percent50.1
Jo Adell (666176) · BATTER · RF · Team LAA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 252
All-history rows before 20260618: 252
System season_avg: 0.2530
Data season_avg (2026 season-to-date): 0.2475
Diff (system - data): 0.0055
System opponent_avg: 0.1880

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1600.0000.000Hitting_2B0.1350.000-0.1350.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.2504.0004.000Hitting_AB3.9444.0000.0560.000
predicted_AVG0.2570.2500.250Hitting_AVG0.2470.0000.0030.250
predicted_BB0.1200.0000.000Hitting_BB0.1310.000-0.1310.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H1.0901.0001.000Hitting_H0.9760.0000.0241.000
predicted_HR0.1300.0000.000Hitting_HR0.1350.000-0.1350.000
predicted_OBP0.3410.2500.250Hitting_OBP0.2950.000-0.0450.250
predicted_R0.4671.0001.000Hitting_R0.4170.0000.5831.000
predicted_RBI0.5300.0001.000Hitting_RBI0.5560.000-0.5560.000
predicted_SLG0.4350.2500.250Hitting_SLG0.3840.000-0.1340.250
predicted_SO0.9601.0001.000Hitting_SO0.9841.0000.0160.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics2
Deboosted Metrics8
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_R: 0.4670 -> 1.0000 (boost 0.5330, better)
Biggest Deboostpredicted_RBI: 0.5300 -> 0.0000 (deboost -0.5300, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend76161predicted_R: 0.4670 -> 0.5689 (boost 0.1019, better)predicted_AB: 4.2500 -> 4.1558 (deboost -0.0942, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3468 -> 0.3031 (deboost -0.0437, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling82617predicted_RBI: 0.5371 -> 1.0000 (boost 0.4629, better)predicted_2B: 0.2114 -> 0.0000 (deboost -0.2114, worse)AB rounded to 4 (raw=4.25), rates preserved: AVG=0.274 HR/AB=0.028
5consistency_constraints11010predicted_R: 0.5774 -> 1.0000 (boost 0.4226, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.4179 -> 0.2500 (deboost -0.1679, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference10101-predicted_RBI: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2500 -> 0.4179 (boost 0.1679, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "666176",
  "player_name": "Jo Adell",
  "position": "RF",
  "team": "LAA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.16,
        "predicted_3B": 0.0,
        "predicted_AB": 4.25,
        "predicted_AVG": 0.257,
        "predicted_BB": 0.12,
        "predicted_H": 1.09,
        "predicted_HR": 0.13,
        "predicted_OBP": 0.341,
        "predicted_R": 0.467,
        "predicted_RBI": 0.53,
        "predicted_SLG": 0.435,
        "predicted_SO": 0.96
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2114,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.1558,
        "predicted_AVG": 0.278,
        "predicted_BB": 0.1387,
        "predicted_H": 1.1511,
        "predicted_HBP": 0.148,
        "predicted_HR": 0.119,
        "predicted_OBP": 0.3468,
        "predicted_R": 0.5689,
        "predicted_RBI": 0.5292,
        "predicted_SLG": 0.4433,
        "predicted_SO": 0.9256
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.16,
          "after": 0.2114,
          "delta": 0.0514,
          "percent_delta": 0.3212,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.25,
          "after": 4.1558,
          "delta": -0.0942,
          "percent_delta": -0.0222,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.257,
          "after": 0.278,
          "delta": 0.021,
          "percent_delta": 0.0817,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.12,
          "after": 0.1387,
          "delta": 0.0187,
          "percent_delta": 0.1558,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.09,
          "after": 1.1511,
          "delta": 0.0611,
          "percent_delta": 0.0561,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.13,
          "after": 0.119,
          "delta": -0.011,
          "percent_delta": -0.0846,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.341,
          "after": 0.3468,
          "delta": 0.0058,
          "percent_delta": 0.017,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.467,
          "after": 0.5689,
          "delta": 0.1019,
          "percent_delta": 0.2182,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.53,
          "after": 0.5292,
          "delta": -0.0008,
          "percent_delta": -0.0015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.435,
          "after": 0.4433,
          "delta": 0.0083,
          "percent_delta": 0.0191,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.96,
          "after": 0.9256,
          "delta": -0.0344,
          "percent_delta": -0.0358,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 6,
        "deboosted_metrics": 1,
        "better_metrics": 6,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.467,
          "after": 0.5689,
          "delta": 0.1019,
          "percent_delta": 0.2182,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.25,
          "after": 4.1558,
          "delta": -0.0942,
          "percent_delta": -0.0222,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 75
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2114,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.1558,
        "predicted_AVG": 0.2799,
        "predicted_BB": 0.1386,
        "predicted_H": 1.1631,
        "predicted_HBP": 0.148,
        "predicted_HR": 0.1205,
        "predicted_OBP": 0.3031,
        "predicted_R": 0.5774,
        "predicted_RBI": 0.5371,
        "predicted_SLG": 0.4179,
        "predicted_SO": 0.9265
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2114,
          "after": 0.2114,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.1558,
          "after": 4.1558,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.278,
          "after": 0.2799,
          "delta": 0.0019,
          "percent_delta": 0.0068,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.1387,
          "after": 0.1386,
          "delta": -0.0001,
          "percent_delta": -0.0007,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.1511,
          "after": 1.1631,
          "delta": 0.012,
          "percent_delta": 0.0104,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.148,
          "after": 0.148,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.119,
          "after": 0.1205,
          "delta": 0.0015,
          "percent_delta": 0.0126,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3468,
          "after": 0.3031,
          "delta": -0.0437,
          "percent_delta": -0.126,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5689,
          "after": 0.5774,
          "delta": 0.0085,
          "percent_delta": 0.0149,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5292,
          "after": 0.5371,
          "delta": 0.0079,
          "percent_delta": 0.0149,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4433,
          "after": 0.4179,
          "delta": -0.0254,
          "percent_delta": -0.0573,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9256,
          "after": 0.9265,
          "delta": 0.0009,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3468,
          "after": 0.3031,
          "delta": -0.0437,
          "percent_delta": -0.126,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.25), rates preserved: AVG=0.274 HR/AB=0.028",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2114,
          "after": 0.0,
          "delta": -0.2114,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.1558,
          "after": 4.0,
          "delta": -0.1558,
          "percent_delta": -0.0375,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1386,
          "after": 0.0,
          "delta": -0.1386,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.1631,
          "after": 1.0,
          "delta": -0.1631,
          "percent_delta": -0.1402,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.148,
          "after": 0.0,
          "delta": -0.148,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1205,
          "after": 0.0,
          "delta": -0.1205,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5371,
          "after": 1.0,
          "delta": 0.4629,
          "percent_delta": 0.8619,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9265,
          "after": 1.0,
          "delta": 0.0735,
          "percent_delta": 0.0793,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 2,
        "deboosted_metrics": 6,
        "better_metrics": 1,
        "worse_metrics": 7,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.5371,
          "after": 1.0,
          "delta": 0.4629,
          "percent_delta": 0.8619,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_2B",
          "before": 0.2114,
          "after": 0.0,
          "delta": -0.2114,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5774,
          "after": 1.0,
          "delta": 0.4226,
          "percent_delta": 0.7319,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5774,
          "after": 1.0,
          "delta": 0.4226,
          "percent_delta": 0.7319,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2799,
          "after": 0.25,
          "delta": -0.0299,
          "percent_delta": -0.1068,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3031,
          "after": 0.25,
          "delta": -0.0531,
          "percent_delta": -0.1752,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4179,
          "after": 0.25,
          "delta": -0.1679,
          "percent_delta": -0.4018,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4179,
          "after": 0.25,
          "delta": -0.1679,
          "percent_delta": -0.4018,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2799,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3031,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_RF": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4179,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2799,
          "delta": 0.0299,
          "percent_delta": 0.1195,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3031,
          "delta": 0.0531,
          "percent_delta": 0.2124,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4179,
          "delta": 0.1679,
          "percent_delta": 0.6718,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4179,
          "delta": 0.1679,
          "percent_delta": 0.6718,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.16,
        "after": 0.0,
        "delta": -0.16,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.25,
        "after": 4.0,
        "delta": -0.25,
        "percent_delta": -0.0588,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.257,
        "after": 0.2799,
        "delta": 0.0229,
        "percent_delta": 0.0891,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.12,
        "after": 0.0,
        "delta": -0.12,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.09,
        "after": 1.0,
        "delta": -0.09,
        "percent_delta": -0.0826,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.13,
        "after": 0.0,
        "delta": -0.13,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.341,
        "after": 0.3031,
        "delta": -0.0379,
        "percent_delta": -0.1111,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.467,
        "after": 1.0,
        "delta": 0.533,
        "percent_delta": 1.1413,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.53,
        "after": 0.0,
        "delta": -0.53,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.435,
        "after": 0.4179,
        "delta": -0.0171,
        "percent_delta": -0.0393,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.96,
        "after": 1.0,
        "delta": 0.04,
        "percent_delta": 0.0417,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 2,
      "deboosted_metrics": 8,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_R",
        "before": 0.467,
        "after": 1.0,
        "delta": 0.533,
        "percent_delta": 1.1413,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.53,
        "after": 0.0,
        "delta": -0.53,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.160-
predicted_3B0.000-
predicted_AB4.250-
predicted_AVG0.257-
predicted_BB0.120-
predicted_H1.090-
predicted_HR0.130-
predicted_OBP0.341-
predicted_R0.467-
predicted_RBI0.530-
predicted_SLG0.435-
predicted_SO0.960-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2110.051
predicted_3B0.0000.000
predicted_AB4.156-0.094
predicted_AVG0.2780.021
predicted_BB0.1390.019
predicted_H1.1510.061
predicted_HBP0.148-
predicted_HR0.119-0.011
predicted_OBP0.3470.006
predicted_R0.5690.102
predicted_RBI0.529-0.001
predicted_SLG0.4430.008
predicted_SO0.926-0.034
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2110.000
predicted_3B0.0000.000
predicted_AB4.1560.000
predicted_AVG0.2800.002
predicted_BB0.139-0.000
predicted_H1.1630.012
predicted_HBP0.1480.000
predicted_HR0.1200.002
predicted_OBP0.303-0.044
predicted_R0.5770.009
predicted_RBI0.5370.008
predicted_SLG0.418-0.025
predicted_SO0.9260.001
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.25), rates preserved: AVG=0.274 HR/AB=0.028

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.211
predicted_3B0.000-0.000
predicted_AB4.000-0.156
predicted_AVG0.250-0.030
predicted_BB0.000-0.139
predicted_H1.000-0.163
predicted_HR0.000-0.120
predicted_OBP0.250-0.053
predicted_R1.0000.423
predicted_RBI1.0000.463
predicted_SLG0.250-0.168
predicted_SO1.0000.074
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 75
Reference playing time: 4.250
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-21.0009.0003.0000.0000.0002.0005.0001.0003.0000.42860.47830.57140.42860.00000.09520.04760.1429
last_100.2010-43.00016.0004.0000.0001.0006.00013.0002.0009.0000.37210.42550.53490.37210.02330.13950.04650.2093
season0.6075-293.00074.00012.0000.00010.00041.00035.0009.00072.0000.25260.29620.39590.25260.03410.13990.03070.2457
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2810
predicted_3B0.0010
predicted_AB4.0280
predicted_AVG0.3064
predicted_BB0.1640
predicted_H1.2340
predicted_HBP0.1480
predicted_HR0.1040
predicted_OBP0.3546
predicted_R0.7070
predicted_RBI0.5280
predicted_SLG0.4545
predicted_SO0.8790
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.16000.28100.2114model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.25004.02804.1558model_form_blend
predicted_AVG0.25700.30640.2780model_form_blend
predicted_BB0.12000.16400.1387model_form_blend
predicted_H1.09001.23401.1511model_form_blend
predicted_HBP-0.14800.1480form_only
predicted_HR0.13000.10400.1190model_form_blend
predicted_OBP0.34100.35460.3468model_form_blend
predicted_R0.46700.70700.5689model_form_blend
predicted_RBI0.53000.52800.5292model_form_blend
predicted_SLG0.43500.45450.4433model_form_blend
predicted_SO0.96000.87900.9256model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date252
Season rows before report date252
Report year2026
Profile rows used75
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R1
RBI0
BB0
SO1
SF0
HBP0
season_avg0.253

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP1
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB0
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedRF
gameID20260617_LAA@ARI
game_typefull
mlbID666176
playerID666176
playerNameJo Adell
posRF
startedTrue
startingPositionRF
teamLAA
teamID13
game_date2026-06-17
sl_k_percent22.9
sl_bb_percent2.9
sl_woba0.305
sl_xwoba0.333
sl_xba0.27
sl_xslg0.452
sl_sweet_spot_percent33.6
sl_barrel_batted_rate8.6
sl_hard_hit_percent45.5
sl_exit_velocity_avg90.4
sl_launch_angle_avg17.8
sl_whiff_percent26.1
sl_swing_percent56.5
Christian Moore (695681) · BATTER · LF · Team LAA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 0
All-history rows before 20260618: 0
System season_avg: 0.2505
Data season_avg (2026 season-to-date): -
Diff (system - data): -
System opponent_avg: 0.2505

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1650.0000.000Hitting_2B----
predicted_3B0.0180.0000.000Hitting_3B----
predicted_AB3.3664.0003.000Hitting_AB----
predicted_AVG0.2510.5000.333Hitting_AVG----
predicted_BB0.3610.0000.000Hitting_BB----
predicted_CS-0.0000.000BaseRunning_CS----
predicted_H0.8452.0001.000Hitting_H----
predicted_HR0.1101.0000.000Hitting_HR----
predicted_OBP0.3230.5000.333Hitting_OBP----
predicted_R0.4611.0000.000Hitting_R----
predicted_RBI0.4322.0000.000Hitting_RBI----
predicted_SLG0.4091.2500.333Hitting_SLG----
predicted_SO0.8790.0001.000Hitting_SO----

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics8
Boosted Metrics5
Deboosted Metrics3
Better Metrics6
Worse Metrics2
Biggest Boostpredicted_RBI: 0.4320 -> 2.0000 (boost 1.5680, better)
Biggest Deboostpredicted_SO: 0.8790 -> 0.0000 (deboost -0.8790, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend11010predicted_AB: 3.3660 -> 3.4446 (boost 0.0786, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot00000--Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_H: 0.8734 -> 1.0000 (boost 0.1266, better)predicted_RBI: 0.4507 -> 0.0000 (deboost -0.4507, worse)AB rounded to 3 (raw=3.44), rates preserved: AVG=0.254 HR/AB=0.033
5consistency_constraints10101-predicted_R: 0.4743 -> 0.0000 (deboost -0.4743, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2536 -> 0.3330 (boost 0.0794, better)predicted_SLG: 0.4129 -> 0.3330 (deboost -0.0799, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference65160predicted_RBI: 0.0000 -> 2.0000 (boost 2.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.4129 (boost 0.0799, better)predicted_AVG: 0.3330 -> 0.2536 (deboost -0.0794, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "695681",
  "player_name": "Christian Moore",
  "position": "LF",
  "team": "LAA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.165,
        "predicted_3B": 0.018,
        "predicted_AB": 3.366,
        "predicted_AVG": 0.251,
        "predicted_BB": 0.361,
        "predicted_H": 0.845,
        "predicted_HR": 0.11,
        "predicted_OBP": 0.323,
        "predicted_R": 0.461,
        "predicted_RBI": 0.432,
        "predicted_SLG": 0.409,
        "predicted_SO": 0.879
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1688,
        "predicted_3B": 0.0175,
        "predicted_AB": 3.4446,
        "predicted_AVG": 0.2509,
        "predicted_BB": 0.3509,
        "predicted_H": 0.8644,
        "predicted_HBP": 0.035,
        "predicted_HR": 0.1135,
        "predicted_OBP": 0.3215,
        "predicted_R": 0.4673,
        "predicted_RBI": 0.444,
        "predicted_SLG": 0.4091,
        "predicted_SO": 0.8747
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.165,
          "after": 0.1688,
          "delta": 0.0038,
          "percent_delta": 0.023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.018,
          "after": 0.0175,
          "delta": -0.0005,
          "percent_delta": -0.0278,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.366,
          "after": 3.4446,
          "delta": 0.0786,
          "percent_delta": 0.0234,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.251,
          "after": 0.2509,
          "delta": -0.0001,
          "percent_delta": -0.0004,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.361,
          "after": 0.3509,
          "delta": -0.0101,
          "percent_delta": -0.028,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.845,
          "after": 0.8644,
          "delta": 0.0194,
          "percent_delta": 0.023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.11,
          "after": 0.1135,
          "delta": 0.0035,
          "percent_delta": 0.0318,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.323,
          "after": 0.3215,
          "delta": -0.0015,
          "percent_delta": -0.0046,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.461,
          "after": 0.4673,
          "delta": 0.0063,
          "percent_delta": 0.0137,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.432,
          "after": 0.444,
          "delta": 0.012,
          "percent_delta": 0.0278,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.409,
          "after": 0.4091,
          "delta": 0.0001,
          "percent_delta": 0.0002,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.879,
          "after": 0.8747,
          "delta": -0.0043,
          "percent_delta": -0.0049,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.366,
          "after": 3.4446,
          "delta": 0.0786,
          "percent_delta": 0.0234,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 0,
        "last_10": 0,
        "season": 0
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1688,
        "predicted_3B": 0.0175,
        "predicted_AB": 3.4446,
        "predicted_AVG": 0.2536,
        "predicted_BB": 0.3505,
        "predicted_H": 0.8734,
        "predicted_HBP": 0.035,
        "predicted_HR": 0.115,
        "predicted_OBP": 0.3225,
        "predicted_R": 0.4743,
        "predicted_RBI": 0.4507,
        "predicted_SLG": 0.4129,
        "predicted_SO": 0.8756
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1688,
          "after": 0.1688,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0175,
          "after": 0.0175,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4446,
          "after": 3.4446,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2509,
          "after": 0.2536,
          "delta": 0.0027,
          "percent_delta": 0.0108,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3509,
          "after": 0.3505,
          "delta": -0.0004,
          "percent_delta": -0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8644,
          "after": 0.8734,
          "delta": 0.009,
          "percent_delta": 0.0104,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.035,
          "after": 0.035,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1135,
          "after": 0.115,
          "delta": 0.0015,
          "percent_delta": 0.0132,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3215,
          "after": 0.3225,
          "delta": 0.001,
          "percent_delta": 0.0031,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4673,
          "after": 0.4743,
          "delta": 0.007,
          "percent_delta": 0.015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.444,
          "after": 0.4507,
          "delta": 0.0067,
          "percent_delta": 0.0151,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4091,
          "after": 0.4129,
          "delta": 0.0038,
          "percent_delta": 0.0093,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.8747,
          "after": 0.8756,
          "delta": 0.0009,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.44), rates preserved: AVG=0.254 HR/AB=0.033",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1688,
          "after": 0.0,
          "delta": -0.1688,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0175,
          "after": 0.0,
          "delta": -0.0175,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4446,
          "after": 3.0,
          "delta": -0.4446,
          "percent_delta": -0.1291,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3505,
          "after": 0.0,
          "delta": -0.3505,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8734,
          "after": 1.0,
          "delta": 0.1266,
          "percent_delta": 0.145,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.035,
          "after": 0.0,
          "delta": -0.035,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.115,
          "after": 0.0,
          "delta": -0.115,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4507,
          "after": 0.0,
          "delta": -0.4507,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8756,
          "after": 1.0,
          "delta": 0.1244,
          "percent_delta": 0.1421,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.8734,
          "after": 1.0,
          "delta": 0.1266,
          "percent_delta": 0.145,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4507,
          "after": 0.0,
          "delta": -0.4507,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4743,
          "after": 0.0,
          "delta": -0.4743,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4743,
          "after": 0.0,
          "delta": -0.4743,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2536,
          "after": 0.333,
          "delta": 0.0794,
          "percent_delta": 0.3131,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3225,
          "after": 0.333,
          "delta": 0.0105,
          "percent_delta": 0.0326,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4129,
          "after": 0.333,
          "delta": -0.0799,
          "percent_delta": -0.1935,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2536,
          "after": 0.333,
          "delta": 0.0794,
          "percent_delta": 0.3131,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4129,
          "after": 0.333,
          "delta": -0.0799,
          "percent_delta": -0.1935,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_R": 1.0,
        "predicted_RBI": 2.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 5,
        "deboosted_metrics": 1,
        "better_metrics": 6,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2536,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_LF": 0.0,
        "predicted_OBP": 0.3225,
        "predicted_R": 1.0,
        "predicted_RBI": 2.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4129,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2536,
          "delta": -0.0794,
          "percent_delta": -0.2386,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3225,
          "delta": -0.0105,
          "percent_delta": -0.0315,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4129,
          "delta": 0.0799,
          "percent_delta": 0.2398,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4129,
          "delta": 0.0799,
          "percent_delta": 0.2398,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2536,
          "delta": -0.0794,
          "percent_delta": -0.2386,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.165,
        "after": 0.0,
        "delta": -0.165,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.018,
        "after": 0.0,
        "delta": -0.018,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.366,
        "after": 4.0,
        "delta": 0.634,
        "percent_delta": 0.1884,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.251,
        "after": 0.2536,
        "delta": 0.0026,
        "percent_delta": 0.0104,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.361,
        "after": 0.0,
        "delta": -0.361,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.845,
        "after": 2.0,
        "delta": 1.155,
        "percent_delta": 1.3669,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.11,
        "after": 1.0,
        "delta": 0.89,
        "percent_delta": 8.0909,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.323,
        "after": 0.3225,
        "delta": -0.0005,
        "percent_delta": -0.0015,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.461,
        "after": 1.0,
        "delta": 0.539,
        "percent_delta": 1.1692,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.432,
        "after": 2.0,
        "delta": 1.568,
        "percent_delta": 3.6296,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.409,
        "after": 0.4129,
        "delta": 0.0039,
        "percent_delta": 0.0095,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.879,
        "after": 0.0,
        "delta": -0.879,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 8,
      "boosted_metrics": 5,
      "deboosted_metrics": 3,
      "better_metrics": 6,
      "worse_metrics": 2,
      "biggest_boost": {
        "metric": "predicted_RBI",
        "before": 0.432,
        "after": 2.0,
        "delta": 1.568,
        "percent_delta": 3.6296,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.879,
        "after": 0.0,
        "delta": -0.879,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.165-
predicted_3B0.018-
predicted_AB3.366-
predicted_AVG0.251-
predicted_BB0.361-
predicted_H0.845-
predicted_HR0.110-
predicted_OBP0.323-
predicted_R0.461-
predicted_RBI0.432-
predicted_SLG0.409-
predicted_SO0.879-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1690.004
predicted_3B0.018-0.000
predicted_AB3.4450.079
predicted_AVG0.251-0.000
predicted_BB0.351-0.010
predicted_H0.8640.019
predicted_HBP0.035-
predicted_HR0.1140.004
predicted_OBP0.322-0.002
predicted_R0.4670.006
predicted_RBI0.4440.012
predicted_SLG0.4090.000
predicted_SO0.875-0.004
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1690.000
predicted_3B0.0180.000
predicted_AB3.4450.000
predicted_AVG0.2540.003
predicted_BB0.350-0.000
predicted_H0.8730.009
predicted_HBP0.0350.000
predicted_HR0.1150.002
predicted_OBP0.3230.001
predicted_R0.4740.007
predicted_RBI0.4510.007
predicted_SLG0.4130.004
predicted_SO0.8760.001
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.44), rates preserved: AVG=0.254 HR/AB=0.033

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.169
predicted_3B0.000-0.018
predicted_AB3.000-0.445
predicted_AVG0.3330.079
predicted_BB0.000-0.350
predicted_H1.0000.127
predicted_HR0.000-0.115
predicted_OBP0.3330.011
predicted_R0.000-0.474
predicted_RBI0.000-0.451
predicted_SLG0.333-0.080
predicted_SO1.0000.124
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR1.0001.000
PA4.000-
R1.0001.000
RBI2.0002.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 0
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.200-0.0000.0000.0000.0000.0000.0000.0000.0000.000--------
last_100.200-0.0000.0000.0000.0000.0000.0000.0000.0000.000--------
season0.600-0.0000.0000.0000.0000.0000.0000.0000.0000.000--------
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1890
predicted_3B0.0150
predicted_AB3.8650
predicted_AVG0.2505
predicted_BB0.2970
predicted_H0.9680
predicted_HBP0.0350
predicted_HR0.1320
predicted_OBP0.3134
predicted_R0.5010
predicted_RBI0.5080
predicted_SLG0.4098
predicted_SO0.8520
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.16500.18900.1688model_form_blend
predicted_3B0.01800.01500.0175model_form_blend
predicted_AB3.36603.86503.4446model_form_blend
predicted_AVG0.25100.25050.2509model_form_blend
predicted_BB0.36100.29700.3509model_form_blend
predicted_H0.84500.96800.8644model_form_blend
predicted_HBP-0.03500.0350form_only
predicted_HR0.11000.13200.1135model_form_blend
predicted_OBP0.32300.31340.3215model_form_blend
predicted_R0.46100.50100.4673model_form_blend
predicted_RBI0.43200.50800.4440model_form_blend
predicted_SLG0.40900.40980.4091model_form_blend
predicted_SO0.87900.85200.8747model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date0
Season rows before report date0
Report year2026
Profile rows used0
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H2
2B0
3B0
HR1
R1
RBI2
BB0
SO0
SF0
HBP0
season_avg0.0

Latest Real Data Snapshot (before report date)

No historical data found for this player before report date.

Vaughn Grissom (687093) · BATTER · 1B · Team LAA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 131
All-history rows before 20260618: 131
System season_avg: 0.2390
Data season_avg (2026 season-to-date): 0.2469
Diff (system - data): -0.0079
System opponent_avg: 0.0830

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2500.0000.000Hitting_2B0.2290.000-0.2290.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.5904.0004.000Hitting_AB3.6794.0000.3210.000
predicted_AVG0.2450.0000.250Hitting_AVG0.2470.000-0.2470.000
predicted_BB0.3250.0000.000Hitting_BB0.3740.000-0.3740.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.8800.0001.000Hitting_H0.9080.000-0.9080.000
predicted_HR0.1300.0000.000Hitting_HR0.1070.000-0.1070.000
predicted_OBP0.3200.0000.250Hitting_OBP0.3130.000-0.3130.000
predicted_R0.3500.0000.000Hitting_R0.3590.000-0.3590.000
predicted_RBI0.6300.0001.000Hitting_RBI0.7860.000-0.7860.000
predicted_SLG0.4270.0000.250Hitting_SLG0.3960.000-0.3960.000
predicted_SO0.4251.0001.000Hitting_SO0.3820.0000.6181.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics4
Deboosted Metrics7
Better Metrics3
Worse Metrics8
Biggest Boostpredicted_SO: 0.4250 -> 1.0000 (boost 0.5750, worse)
Biggest Deboostpredicted_H: 0.8800 -> 0.0000 (deboost -0.8800, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend11010predicted_SLG: 0.4270 -> 0.4334 (boost 0.0064, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_OBP: 0.3216 -> 0.3105 (deboost -0.0111, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling84435predicted_SO: 0.4746 -> 1.0000 (boost 0.5254, worse)predicted_BB: 0.3142 -> 0.0000 (deboost -0.3142, worse)AB rounded to 4 (raw=3.63), rates preserved: AVG=0.251 HR/AB=0.037
5consistency_constraints10101-predicted_R: 0.4035 -> 0.0000 (deboost -0.4035, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context20202-predicted_SLG: 0.4354 -> 0.2500 (deboost -0.1854, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference20202-predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final22020predicted_SLG: 0.2500 -> 0.4354 (boost 0.1854, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "687093",
  "player_name": "Vaughn Grissom",
  "position": "1B",
  "team": "LAA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.25,
        "predicted_3B": 0.0,
        "predicted_AB": 3.59,
        "predicted_AVG": 0.245,
        "predicted_BB": 0.325,
        "predicted_H": 0.88,
        "predicted_HR": 0.13,
        "predicted_OBP": 0.32,
        "predicted_R": 0.35,
        "predicted_RBI": 0.63,
        "predicted_SLG": 0.427,
        "predicted_SO": 0.425
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2653,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.6347,
        "predicted_AVG": 0.2482,
        "predicted_BB": 0.3145,
        "predicted_H": 0.9026,
        "predicted_HBP": 0.108,
        "predicted_HR": 0.1328,
        "predicted_OBP": 0.3216,
        "predicted_R": 0.3975,
        "predicted_RBI": 0.6743,
        "predicted_SLG": 0.4334,
        "predicted_SO": 0.4741
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.25,
          "after": 0.2653,
          "delta": 0.0153,
          "percent_delta": 0.0612,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.59,
          "after": 3.6347,
          "delta": 0.0447,
          "percent_delta": 0.0125,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.245,
          "after": 0.2482,
          "delta": 0.0032,
          "percent_delta": 0.0131,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.325,
          "after": 0.3145,
          "delta": -0.0105,
          "percent_delta": -0.0323,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.88,
          "after": 0.9026,
          "delta": 0.0226,
          "percent_delta": 0.0257,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.13,
          "after": 0.1328,
          "delta": 0.0028,
          "percent_delta": 0.0215,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.32,
          "after": 0.3216,
          "delta": 0.0016,
          "percent_delta": 0.005,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.35,
          "after": 0.3975,
          "delta": 0.0475,
          "percent_delta": 0.1357,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.63,
          "after": 0.6743,
          "delta": 0.0443,
          "percent_delta": 0.0703,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.427,
          "after": 0.4334,
          "delta": 0.0064,
          "percent_delta": 0.015,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.425,
          "after": 0.4741,
          "delta": 0.0491,
          "percent_delta": 0.1155,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.427,
          "after": 0.4334,
          "delta": 0.0064,
          "percent_delta": 0.015,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 40
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2653,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.6347,
        "predicted_AVG": 0.2509,
        "predicted_BB": 0.3142,
        "predicted_H": 0.912,
        "predicted_HBP": 0.108,
        "predicted_HR": 0.1345,
        "predicted_OBP": 0.3105,
        "predicted_R": 0.4035,
        "predicted_RBI": 0.6844,
        "predicted_SLG": 0.4354,
        "predicted_SO": 0.4746
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2653,
          "after": 0.2653,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6347,
          "after": 3.6347,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2482,
          "after": 0.2509,
          "delta": 0.0027,
          "percent_delta": 0.0109,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3145,
          "after": 0.3142,
          "delta": -0.0003,
          "percent_delta": -0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9026,
          "after": 0.912,
          "delta": 0.0094,
          "percent_delta": 0.0104,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.108,
          "after": 0.108,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1328,
          "after": 0.1345,
          "delta": 0.0017,
          "percent_delta": 0.0128,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3216,
          "after": 0.3105,
          "delta": -0.0111,
          "percent_delta": -0.0345,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3975,
          "after": 0.4035,
          "delta": 0.006,
          "percent_delta": 0.0151,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6743,
          "after": 0.6844,
          "delta": 0.0101,
          "percent_delta": 0.015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4334,
          "after": 0.4354,
          "delta": 0.002,
          "percent_delta": 0.0046,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.4741,
          "after": 0.4746,
          "delta": 0.0005,
          "percent_delta": 0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3216,
          "after": 0.3105,
          "delta": -0.0111,
          "percent_delta": -0.0345,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.63), rates preserved: AVG=0.251 HR/AB=0.037",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2653,
          "after": 0.0,
          "delta": -0.2653,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6347,
          "after": 4.0,
          "delta": 0.3653,
          "percent_delta": 0.1005,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3142,
          "after": 0.0,
          "delta": -0.3142,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.912,
          "after": 1.0,
          "delta": 0.088,
          "percent_delta": 0.0965,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.108,
          "after": 0.0,
          "delta": -0.108,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1345,
          "after": 0.0,
          "delta": -0.1345,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6844,
          "after": 1.0,
          "delta": 0.3156,
          "percent_delta": 0.4611,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.4746,
          "after": 1.0,
          "delta": 0.5254,
          "percent_delta": 1.107,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 4,
        "deboosted_metrics": 4,
        "better_metrics": 3,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.4746,
          "after": 1.0,
          "delta": 0.5254,
          "percent_delta": 1.107,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3142,
          "after": 0.0,
          "delta": -0.3142,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4035,
          "after": 0.0,
          "delta": -0.4035,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4035,
          "after": 0.0,
          "delta": -0.4035,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2509,
          "after": 0.25,
          "delta": -0.0009,
          "percent_delta": -0.0036,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3105,
          "after": 0.25,
          "delta": -0.0605,
          "percent_delta": -0.1948,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4354,
          "after": 0.25,
          "delta": -0.1854,
          "percent_delta": -0.4258,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4354,
          "after": 0.25,
          "delta": -0.1854,
          "percent_delta": -0.4258,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2509,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_FB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3105,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4354,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2509,
          "delta": 0.0009,
          "percent_delta": 0.0036,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3105,
          "delta": 0.0605,
          "percent_delta": 0.242,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4354,
          "delta": 0.1854,
          "percent_delta": 0.7415,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4354,
          "delta": 0.1854,
          "percent_delta": 0.7415,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.25,
        "after": 0.0,
        "delta": -0.25,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.59,
        "after": 4.0,
        "delta": 0.41,
        "percent_delta": 0.1142,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.245,
        "after": 0.2509,
        "delta": 0.0059,
        "percent_delta": 0.0241,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.325,
        "after": 0.0,
        "delta": -0.325,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.88,
        "after": 0.0,
        "delta": -0.88,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.13,
        "after": 0.0,
        "delta": -0.13,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.32,
        "after": 0.3105,
        "delta": -0.0095,
        "percent_delta": -0.0297,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.35,
        "after": 0.0,
        "delta": -0.35,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.63,
        "after": 0.0,
        "delta": -0.63,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.427,
        "after": 0.4354,
        "delta": 0.0084,
        "percent_delta": 0.0197,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.425,
        "after": 1.0,
        "delta": 0.575,
        "percent_delta": 1.3529,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 4,
      "deboosted_metrics": 7,
      "better_metrics": 3,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.425,
        "after": 1.0,
        "delta": 0.575,
        "percent_delta": 1.3529,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.88,
        "after": 0.0,
        "delta": -0.88,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.250-
predicted_3B0.000-
predicted_AB3.590-
predicted_AVG0.245-
predicted_BB0.325-
predicted_H0.880-
predicted_HR0.130-
predicted_OBP0.320-
predicted_R0.350-
predicted_RBI0.630-
predicted_SLG0.427-
predicted_SO0.425-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2650.015
predicted_3B0.0010.001
predicted_AB3.6350.045
predicted_AVG0.2480.003
predicted_BB0.315-0.011
predicted_H0.9030.023
predicted_HBP0.108-
predicted_HR0.1330.003
predicted_OBP0.3220.002
predicted_R0.3980.048
predicted_RBI0.6740.044
predicted_SLG0.4330.006
predicted_SO0.4740.049
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2650.000
predicted_3B0.0010.000
predicted_AB3.6350.000
predicted_AVG0.2510.003
predicted_BB0.314-0.000
predicted_H0.9120.009
predicted_HBP0.1080.000
predicted_HR0.1350.002
predicted_OBP0.310-0.011
predicted_R0.4040.006
predicted_RBI0.6840.010
predicted_SLG0.4350.002
predicted_SO0.4750.001
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.63), rates preserved: AVG=0.251 HR/AB=0.037

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.265
predicted_3B0.000-0.001
predicted_AB4.0000.365
predicted_AVG0.250-0.001
predicted_BB0.000-0.314
predicted_H1.0000.088
predicted_HR0.000-0.135
predicted_OBP0.250-0.060
predicted_R0.000-0.404
predicted_RBI1.0000.316
predicted_SLG0.250-0.185
predicted_SO1.0000.525
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 40
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.0005.0002.0000.0001.0003.0003.0001.0003.0000.25000.31820.50000.25000.05000.15000.05000.1500
last_100.2010-40.00012.0004.0000.0002.00014.0007.0003.0006.0000.30000.36960.55000.30000.05000.35000.07500.1500
season0.6040-138.00033.00010.0000.0004.00026.00014.00013.00017.0000.23910.31410.39860.23910.02900.18840.09420.1232
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2880
predicted_3B0.0020
predicted_AB3.7010
predicted_AVG0.2530
predicted_BB0.2990
predicted_H0.9360
predicted_HBP0.1080
predicted_HR0.1370
predicted_OBP0.3240
predicted_R0.4680
predicted_RBI0.7400
predicted_SLG0.4428
predicted_SO0.5470
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.25000.28800.2653model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB3.59003.70103.6347model_form_blend
predicted_AVG0.24500.25300.2482model_form_blend
predicted_BB0.32500.29900.3145model_form_blend
predicted_H0.88000.93600.9026model_form_blend
predicted_HBP-0.10800.1080form_only
predicted_HR0.13000.13700.1328model_form_blend
predicted_OBP0.32000.32400.3216model_form_blend
predicted_R0.35000.46800.3975model_form_blend
predicted_RBI0.63000.74000.6743model_form_blend
predicted_SLG0.42700.44280.4334model_form_blend
predicted_SO0.42500.54700.4741model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date131
Season rows before report date131
Report year2026
Profile rows used40
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.239

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B
gameID20260617_LAA@ARI
game_typefull
mlbID687093
playerID687093
playerNameVaughn Grissom
pos2B
startedTrue
startingPosition1B
teamLAA
teamID13
game_date2026-06-17
sl_k_percent10.7
sl_bb_percent8.8
sl_woba0.316
sl_xwoba0.344
sl_xba0.261
sl_xslg0.435
sl_sweet_spot_percent32.3
sl_barrel_batted_rate7.3
sl_hard_hit_percent45.2
sl_exit_velocity_avg90.2
sl_launch_angle_avg13.4
sl_whiff_percent19.4
sl_swing_percent45.6
Nick Madrigal (663611) · BATTER · 2B · Team LAA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 14
All-history rows before 20260618: 14
System season_avg: 0.2930
Data season_avg (2026 season-to-date): 0.2927
Diff (system - data): 0.0003
System opponent_avg: 0.2930

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0770.0000.000Hitting_2B0.0710.000-0.0710.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.2502.0003.000Hitting_AB2.9295.000-0.929-3.000
predicted_AVG0.2590.0000.333Hitting_AVG0.2930.000-0.2930.000
predicted_BB0.4621.0000.000Hitting_BB0.4290.0000.5711.000
predicted_CS-0.0000.000BaseRunning_CS0.0710.000-0.0710.000
predicted_H0.8400.0001.000Hitting_H0.8570.000-0.8570.000
predicted_HR0.0700.0000.000Hitting_HR0.0000.0000.0000.000
predicted_OBP0.3420.5000.333Hitting_OBP0.3960.0000.1040.500
predicted_R0.5380.0001.000Hitting_R0.5000.000-0.5000.000
predicted_RBI0.3300.0000.000Hitting_RBI0.1430.000-0.1430.000
predicted_SB-0.0000.000BaseRunning_SB0.0710.000-0.0710.000
predicted_SLG0.3570.0000.333Hitting_SLG0.3170.000-0.3170.000
predicted_SO0.2310.0000.000Hitting_SO0.2141.000-0.214-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics4
Worse Metrics7
Biggest Boostpredicted_BB: 0.4620 -> 1.0000 (boost 0.5380, better)
Biggest Deboostpredicted_AB: 3.2500 -> 2.0000 (deboost -1.2500, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend22011predicted_AB: 3.2500 -> 3.3310 (boost 0.0810, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot11010predicted_OBP: 0.3462 -> 0.3536 (boost 0.0074, better)-Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71625predicted_H: 0.8837 -> 1.0000 (boost 0.1163, better)predicted_BB: 0.4551 -> 0.0000 (deboost -0.4551, worse)AB rounded to 3 (raw=3.33), rates preserved: AVG=0.265 HR/AB=0.019
5consistency_constraints11010predicted_R: 0.5533 -> 1.0000 (boost 0.4467, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2653 -> 0.3330 (boost 0.0677, better)predicted_OBP: 0.3536 -> 0.3330 (deboost -0.0206, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference52323predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 3.0000 -> 2.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_OBP: 0.3330 -> 0.3536 (boost 0.0206, better)predicted_AVG: 0.3330 -> 0.2653 (deboost -0.0677, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "663611",
  "player_name": "Nick Madrigal",
  "position": "2B",
  "team": "LAA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.077,
        "predicted_3B": 0.0,
        "predicted_AB": 3.25,
        "predicted_AVG": 0.259,
        "predicted_BB": 0.462,
        "predicted_H": 0.84,
        "predicted_HR": 0.07,
        "predicted_OBP": 0.342,
        "predicted_R": 0.538,
        "predicted_RBI": 0.33,
        "predicted_SLG": 0.357,
        "predicted_SO": 0.231
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0884,
        "predicted_3B": 0.0017,
        "predicted_AB": 3.331,
        "predicted_AVG": 0.2627,
        "predicted_BB": 0.4556,
        "predicted_H": 0.8746,
        "predicted_HBP": 0.012,
        "predicted_HR": 0.0623,
        "predicted_OBP": 0.3462,
        "predicted_R": 0.5451,
        "predicted_RBI": 0.3169,
        "predicted_SLG": 0.3529,
        "predicted_SO": 0.3026
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.077,
          "after": 0.0884,
          "delta": 0.0114,
          "percent_delta": 0.1481,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0017,
          "delta": 0.0017,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.25,
          "after": 3.331,
          "delta": 0.081,
          "percent_delta": 0.0249,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.259,
          "after": 0.2627,
          "delta": 0.0037,
          "percent_delta": 0.0143,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.462,
          "after": 0.4556,
          "delta": -0.0064,
          "percent_delta": -0.0139,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.84,
          "after": 0.8746,
          "delta": 0.0346,
          "percent_delta": 0.0412,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.07,
          "after": 0.0623,
          "delta": -0.0077,
          "percent_delta": -0.11,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.342,
          "after": 0.3462,
          "delta": 0.0042,
          "percent_delta": 0.0123,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.538,
          "after": 0.5451,
          "delta": 0.0071,
          "percent_delta": 0.0132,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.33,
          "after": 0.3169,
          "delta": -0.0131,
          "percent_delta": -0.0397,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.357,
          "after": 0.3529,
          "delta": -0.0041,
          "percent_delta": -0.0115,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.231,
          "after": 0.3026,
          "delta": 0.0716,
          "percent_delta": 0.31,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.25,
          "after": 3.331,
          "delta": 0.081,
          "percent_delta": 0.0249,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 13
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0884,
        "predicted_3B": 0.0017,
        "predicted_AB": 3.331,
        "predicted_AVG": 0.2653,
        "predicted_BB": 0.4551,
        "predicted_H": 0.8837,
        "predicted_HBP": 0.012,
        "predicted_HR": 0.0631,
        "predicted_OBP": 0.3536,
        "predicted_R": 0.5533,
        "predicted_RBI": 0.3217,
        "predicted_SLG": 0.3497,
        "predicted_SO": 0.3029
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0884,
          "after": 0.0884,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0017,
          "after": 0.0017,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.331,
          "after": 3.331,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2627,
          "after": 0.2653,
          "delta": 0.0026,
          "percent_delta": 0.0099,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.4556,
          "after": 0.4551,
          "delta": -0.0005,
          "percent_delta": -0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8746,
          "after": 0.8837,
          "delta": 0.0091,
          "percent_delta": 0.0104,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.012,
          "after": 0.012,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0623,
          "after": 0.0631,
          "delta": 0.0008,
          "percent_delta": 0.0128,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3462,
          "after": 0.3536,
          "delta": 0.0074,
          "percent_delta": 0.0214,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5451,
          "after": 0.5533,
          "delta": 0.0082,
          "percent_delta": 0.015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3169,
          "after": 0.3217,
          "delta": 0.0048,
          "percent_delta": 0.0151,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3529,
          "after": 0.3497,
          "delta": -0.0032,
          "percent_delta": -0.0091,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.3026,
          "after": 0.3029,
          "delta": 0.0003,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3462,
          "after": 0.3536,
          "delta": 0.0074,
          "percent_delta": 0.0214,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.33), rates preserved: AVG=0.265 HR/AB=0.019",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0884,
          "after": 0.0,
          "delta": -0.0884,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0017,
          "after": 0.0,
          "delta": -0.0017,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.331,
          "after": 3.0,
          "delta": -0.331,
          "percent_delta": -0.0994,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4551,
          "after": 0.0,
          "delta": -0.4551,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8837,
          "after": 1.0,
          "delta": 0.1163,
          "percent_delta": 0.1316,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.012,
          "after": 0.0,
          "delta": -0.012,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0631,
          "after": 0.0,
          "delta": -0.0631,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3217,
          "after": 0.0,
          "delta": -0.3217,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.3029,
          "after": 0.0,
          "delta": -0.3029,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.8837,
          "after": 1.0,
          "delta": 0.1163,
          "percent_delta": 0.1316,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.4551,
          "after": 0.0,
          "delta": -0.4551,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5533,
          "after": 1.0,
          "delta": 0.4467,
          "percent_delta": 0.8073,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5533,
          "after": 1.0,
          "delta": 0.4467,
          "percent_delta": 0.8073,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2653,
          "after": 0.333,
          "delta": 0.0677,
          "percent_delta": 0.2552,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3536,
          "after": 0.333,
          "delta": -0.0206,
          "percent_delta": -0.0583,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3497,
          "after": 0.333,
          "delta": -0.0167,
          "percent_delta": -0.0478,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2653,
          "after": 0.333,
          "delta": 0.0677,
          "percent_delta": 0.2552,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3536,
          "after": 0.333,
          "delta": -0.0206,
          "percent_delta": -0.0583,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 2.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 1.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 2.0,
          "delta": -1.0,
          "percent_delta": -0.3333,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 2,
        "deboosted_metrics": 3,
        "better_metrics": 2,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 2.0,
          "delta": -1.0,
          "percent_delta": -0.3333,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 2.0,
        "predicted_AVG": 0.2653,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3536,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3497,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2653,
          "delta": -0.0677,
          "percent_delta": -0.2033,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3536,
          "delta": 0.0206,
          "percent_delta": 0.0619,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3497,
          "delta": 0.0167,
          "percent_delta": 0.0501,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3536,
          "delta": 0.0206,
          "percent_delta": 0.0619,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2653,
          "delta": -0.0677,
          "percent_delta": -0.2033,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.077,
        "after": 0.0,
        "delta": -0.077,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.25,
        "after": 2.0,
        "delta": -1.25,
        "percent_delta": -0.3846,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.259,
        "after": 0.2653,
        "delta": 0.0063,
        "percent_delta": 0.0243,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.462,
        "after": 1.0,
        "delta": 0.538,
        "percent_delta": 1.1645,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.84,
        "after": 0.0,
        "delta": -0.84,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.07,
        "after": 0.0,
        "delta": -0.07,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.342,
        "after": 0.3536,
        "delta": 0.0116,
        "percent_delta": 0.0339,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.538,
        "after": 0.0,
        "delta": -0.538,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.33,
        "after": 0.0,
        "delta": -0.33,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.357,
        "after": 0.3497,
        "delta": -0.0073,
        "percent_delta": -0.0204,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.231,
        "after": 0.0,
        "delta": -0.231,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 4,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.462,
        "after": 1.0,
        "delta": 0.538,
        "percent_delta": 1.1645,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 3.25,
        "after": 2.0,
        "delta": -1.25,
        "percent_delta": -0.3846,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.077-
predicted_3B0.000-
predicted_AB3.250-
predicted_AVG0.259-
predicted_BB0.462-
predicted_H0.840-
predicted_HR0.070-
predicted_OBP0.342-
predicted_R0.538-
predicted_RBI0.330-
predicted_SLG0.357-
predicted_SO0.231-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.0880.011
predicted_3B0.0020.002
predicted_AB3.3310.081
predicted_AVG0.2630.004
predicted_BB0.456-0.006
predicted_H0.8750.035
predicted_HBP0.012-
predicted_HR0.062-0.008
predicted_OBP0.3460.004
predicted_R0.5450.007
predicted_RBI0.317-0.013
predicted_SLG0.353-0.004
predicted_SO0.3030.072
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0880.000
predicted_3B0.0020.000
predicted_AB3.3310.000
predicted_AVG0.2650.003
predicted_BB0.455-0.001
predicted_H0.8840.009
predicted_HBP0.0120.000
predicted_HR0.0630.001
predicted_OBP0.3540.007
predicted_R0.5530.008
predicted_RBI0.3220.005
predicted_SLG0.350-0.003
predicted_SO0.3030.000
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.33), rates preserved: AVG=0.265 HR/AB=0.019

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO0.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO0.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.088
predicted_3B0.000-0.002
predicted_AB3.000-0.331
predicted_AVG0.3330.068
predicted_BB0.000-0.455
predicted_H1.0000.116
predicted_HR0.000-0.063
predicted_OBP0.333-0.021
predicted_R1.0000.447
predicted_RBI0.000-0.322
predicted_SLG0.333-0.017
predicted_SO0.000-0.303
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB2.000-1.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP1.0001.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 13
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0004.0000.0000.0000.0001.0003.0003.0001.0000.22220.33330.22220.22220.00000.05560.16670.0556
last_100.2010-32.00010.0001.0000.0000.0002.0007.0006.0002.0000.31250.42110.34380.31250.00000.06250.18750.0625
season0.6013-41.00012.0001.0000.0000.0002.0007.0006.0003.0000.29270.38300.31710.29270.00000.04880.14630.0732
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1110
predicted_3B0.0050
predicted_AB3.4910
predicted_AVG0.2701
predicted_BB0.4430
predicted_H0.9430
predicted_HBP0.0120
predicted_HR0.0470
predicted_OBP0.3545
predicted_R0.5590
predicted_RBI0.2910
predicted_SLG0.3449
predicted_SO0.4440
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.07700.11100.0884model_form_blend
predicted_3B0.00000.00500.0017model_form_blend
predicted_AB3.25003.49103.3310model_form_blend
predicted_AVG0.25900.27010.2627model_form_blend
predicted_BB0.46200.44300.4556model_form_blend
predicted_H0.84000.94300.8746model_form_blend
predicted_HBP-0.01200.0120form_only
predicted_HR0.07000.04700.0623model_form_blend
predicted_OBP0.34200.35450.3462model_form_blend
predicted_R0.53800.55900.5451model_form_blend
predicted_RBI0.33000.29100.3169model_form_blend
predicted_SLG0.35700.34490.3529model_form_blend
predicted_SO0.23100.44400.3026model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date14
Season rows before report date14
Report year2026
Profile rows used13
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB2
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO0
SF0
HBP1
season_avg0.293

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB0
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260616_LAA@ARI
game_typefull
mlbID663611
playerID663611
playerNameNick Madrigal
pos3B
startedTrue
startingPosition2B
teamLAA
teamID13
game_date2026-06-16
sl_k_percent6.3
sl_bb_percent12.5
sl_woba0.334
sl_xwoba0.292
sl_xba0.231
sl_xslg0.281
sl_sweet_spot_percent28.9
sl_barrel_batted_rate0.0
sl_hard_hit_percent26.3
sl_exit_velocity_avg88.7
sl_launch_angle_avg9.8
sl_whiff_percent9.5
sl_swing_percent51.1
Oswald Peraza (672724) · BATTER · DH · Team LAA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 178
All-history rows before 20260618: 178
System season_avg: 0.2590
Data season_avg (2026 season-to-date): 0.2760
Diff (system - data): -0.0170
System opponent_avg: 0.2860
System season_avg diverges from 2026 season-to-date by -0.0170. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1410.0000.000Hitting_2B0.1350.000-0.1350.000
predicted_3B0.0310.0000.000Hitting_3B0.0170.000-0.0170.000
predicted_AB3.3123.0003.000Hitting_AB3.3994.000-0.399-1.000
predicted_AVG0.2410.0000.333Hitting_AVG0.2760.250-0.276-0.250
predicted_BB0.1251.0000.000Hitting_BB0.1850.0000.8151.000
predicted_CS-0.0000.000BaseRunning_CS0.0170.000-0.0170.000
predicted_H0.7900.0001.000Hitting_H0.9381.000-0.938-1.000
predicted_HR0.1000.0000.000Hitting_HR0.1520.000-0.1520.000
predicted_OBP0.2750.2500.333Hitting_OBP0.3430.250-0.0930.000
predicted_R0.3120.0000.000Hitting_R0.3710.000-0.3710.000
predicted_RBI0.3500.0000.000Hitting_RBI0.3880.000-0.3880.000
predicted_SLG0.3720.0000.333Hitting_SLG0.4600.250-0.460-0.250
predicted_SO0.9381.0001.000Hitting_SO0.9611.0000.0390.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics3
Deboosted Metrics7
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_BB: 0.1250 -> 1.0000 (boost 0.8750, better)
Biggest Deboostpredicted_H: 0.7900 -> 0.0000 (deboost -0.7900, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend41304predicted_SO: 0.9380 -> 1.0320 (boost 0.0940, worse)predicted_OBP: 0.2750 -> 0.2687 (deboost -0.0063, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot21111predicted_SLG: 0.3659 -> 0.3801 (boost 0.0142, better)predicted_OBP: 0.2687 -> 0.2617 (deboost -0.0070, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71616predicted_H: 0.7949 -> 1.0000 (boost 0.2051, better)predicted_AB: 3.3594 -> 3.0000 (deboost -0.3594, worse)AB rounded to 3 (raw=3.36), rates preserved: AVG=0.237 HR/AB=0.027
5consistency_constraints10101-predicted_R: 0.3015 -> 0.0000 (deboost -0.3015, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2366 -> 0.3330 (boost 0.0964, better)predicted_SLG: 0.3801 -> 0.3330 (deboost -0.0471, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21111predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.3801 (boost 0.0471, better)predicted_AVG: 0.3330 -> 0.2366 (deboost -0.0964, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "672724",
  "player_name": "Oswald Peraza",
  "position": "DH",
  "team": "LAA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.141,
        "predicted_3B": 0.031,
        "predicted_AB": 3.312,
        "predicted_AVG": 0.241,
        "predicted_BB": 0.125,
        "predicted_H": 0.79,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.275,
        "predicted_R": 0.312,
        "predicted_RBI": 0.35,
        "predicted_SLG": 0.372,
        "predicted_SO": 0.938
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1447,
        "predicted_3B": 0.0331,
        "predicted_AB": 3.3594,
        "predicted_AVG": 0.2357,
        "predicted_BB": 0.1142,
        "predicted_H": 0.7867,
        "predicted_HBP": 0.055,
        "predicted_HR": 0.0892,
        "predicted_OBP": 0.2687,
        "predicted_R": 0.297,
        "predicted_RBI": 0.33,
        "predicted_SLG": 0.3659,
        "predicted_SO": 1.032
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.141,
          "after": 0.1447,
          "delta": 0.0037,
          "percent_delta": 0.0262,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.031,
          "after": 0.0331,
          "delta": 0.0021,
          "percent_delta": 0.0677,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.312,
          "after": 3.3594,
          "delta": 0.0474,
          "percent_delta": 0.0143,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.241,
          "after": 0.2357,
          "delta": -0.0053,
          "percent_delta": -0.022,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.125,
          "after": 0.1142,
          "delta": -0.0108,
          "percent_delta": -0.0864,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.79,
          "after": 0.7867,
          "delta": -0.0033,
          "percent_delta": -0.0042,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.0892,
          "delta": -0.0108,
          "percent_delta": -0.108,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.275,
          "after": 0.2687,
          "delta": -0.0063,
          "percent_delta": -0.0229,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.312,
          "after": 0.297,
          "delta": -0.015,
          "percent_delta": -0.0481,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.35,
          "after": 0.33,
          "delta": -0.02,
          "percent_delta": -0.0571,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.372,
          "after": 0.3659,
          "delta": -0.0061,
          "percent_delta": -0.0164,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.938,
          "after": 1.032,
          "delta": 0.094,
          "percent_delta": 0.1002,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 1,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.938,
          "after": 1.032,
          "delta": 0.094,
          "percent_delta": 0.1002,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.275,
          "after": 0.2687,
          "delta": -0.0063,
          "percent_delta": -0.0229,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 64
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1447,
        "predicted_3B": 0.0331,
        "predicted_AB": 3.3594,
        "predicted_AVG": 0.2366,
        "predicted_BB": 0.1141,
        "predicted_H": 0.7949,
        "predicted_HBP": 0.055,
        "predicted_HR": 0.0904,
        "predicted_OBP": 0.2617,
        "predicted_R": 0.3015,
        "predicted_RBI": 0.3349,
        "predicted_SLG": 0.3801,
        "predicted_SO": 1.033
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1447,
          "after": 0.1447,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0331,
          "after": 0.0331,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.3594,
          "after": 3.3594,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2357,
          "after": 0.2366,
          "delta": 0.0009,
          "percent_delta": 0.0038,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.1142,
          "after": 0.1141,
          "delta": -0.0001,
          "percent_delta": -0.0009,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7867,
          "after": 0.7949,
          "delta": 0.0082,
          "percent_delta": 0.0104,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.055,
          "after": 0.055,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0892,
          "after": 0.0904,
          "delta": 0.0012,
          "percent_delta": 0.0135,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2687,
          "after": 0.2617,
          "delta": -0.007,
          "percent_delta": -0.0261,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.297,
          "after": 0.3015,
          "delta": 0.0045,
          "percent_delta": 0.0152,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.33,
          "after": 0.3349,
          "delta": 0.0049,
          "percent_delta": 0.0148,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3659,
          "after": 0.3801,
          "delta": 0.0142,
          "percent_delta": 0.0388,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.032,
          "after": 1.033,
          "delta": 0.001,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.3659,
          "after": 0.3801,
          "delta": 0.0142,
          "percent_delta": 0.0388,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.2687,
          "after": 0.2617,
          "delta": -0.007,
          "percent_delta": -0.0261,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.36), rates preserved: AVG=0.237 HR/AB=0.027",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1447,
          "after": 0.0,
          "delta": -0.1447,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0331,
          "after": 0.0,
          "delta": -0.0331,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.3594,
          "after": 3.0,
          "delta": -0.3594,
          "percent_delta": -0.107,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1141,
          "after": 0.0,
          "delta": -0.1141,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7949,
          "after": 1.0,
          "delta": 0.2051,
          "percent_delta": 0.258,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.055,
          "after": 0.0,
          "delta": -0.055,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0904,
          "after": 0.0,
          "delta": -0.0904,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3349,
          "after": 0.0,
          "delta": -0.3349,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.033,
          "after": 1.0,
          "delta": -0.033,
          "percent_delta": -0.0319,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.7949,
          "after": 1.0,
          "delta": 0.2051,
          "percent_delta": 0.258,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.3594,
          "after": 3.0,
          "delta": -0.3594,
          "percent_delta": -0.107,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3015,
          "after": 0.0,
          "delta": -0.3015,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3015,
          "after": 0.0,
          "delta": -0.3015,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2366,
          "after": 0.333,
          "delta": 0.0964,
          "percent_delta": 0.4074,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2617,
          "after": 0.333,
          "delta": 0.0713,
          "percent_delta": 0.2724,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3801,
          "after": 0.333,
          "delta": -0.0471,
          "percent_delta": -0.1239,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2366,
          "after": 0.333,
          "delta": 0.0964,
          "percent_delta": 0.4074,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3801,
          "after": 0.333,
          "delta": -0.0471,
          "percent_delta": -0.1239,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2366,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2617,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3801,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2366,
          "delta": -0.0964,
          "percent_delta": -0.2894,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2617,
          "delta": -0.0713,
          "percent_delta": -0.2142,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3801,
          "delta": 0.0471,
          "percent_delta": 0.1414,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3801,
          "delta": 0.0471,
          "percent_delta": 0.1414,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2366,
          "delta": -0.0964,
          "percent_delta": -0.2894,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.141,
        "after": 0.0,
        "delta": -0.141,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.031,
        "after": 0.0,
        "delta": -0.031,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.312,
        "after": 3.0,
        "delta": -0.312,
        "percent_delta": -0.0942,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.241,
        "after": 0.2366,
        "delta": -0.0044,
        "percent_delta": -0.0183,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.125,
        "after": 1.0,
        "delta": 0.875,
        "percent_delta": 7.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.79,
        "after": 0.0,
        "delta": -0.79,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.275,
        "after": 0.2617,
        "delta": -0.0133,
        "percent_delta": -0.0484,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.312,
        "after": 0.0,
        "delta": -0.312,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.35,
        "after": 0.0,
        "delta": -0.35,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.372,
        "after": 0.3801,
        "delta": 0.0081,
        "percent_delta": 0.0218,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.938,
        "after": 1.0,
        "delta": 0.062,
        "percent_delta": 0.0661,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 3,
      "deboosted_metrics": 7,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.125,
        "after": 1.0,
        "delta": 0.875,
        "percent_delta": 7.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.79,
        "after": 0.0,
        "delta": -0.79,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.141-
predicted_3B0.031-
predicted_AB3.312-
predicted_AVG0.241-
predicted_BB0.125-
predicted_H0.790-
predicted_HR0.100-
predicted_OBP0.275-
predicted_R0.312-
predicted_RBI0.350-
predicted_SLG0.372-
predicted_SO0.938-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1450.004
predicted_3B0.0330.002
predicted_AB3.3590.047
predicted_AVG0.236-0.005
predicted_BB0.114-0.011
predicted_H0.787-0.003
predicted_HBP0.055-
predicted_HR0.089-0.011
predicted_OBP0.269-0.006
predicted_R0.297-0.015
predicted_RBI0.330-0.020
predicted_SLG0.366-0.006
predicted_SO1.0320.094
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1450.000
predicted_3B0.0330.000
predicted_AB3.3590.000
predicted_AVG0.2370.001
predicted_BB0.114-0.000
predicted_H0.7950.008
predicted_HBP0.0550.000
predicted_HR0.0900.001
predicted_OBP0.262-0.007
predicted_R0.3010.005
predicted_RBI0.3350.005
predicted_SLG0.3800.014
predicted_SO1.0330.001
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.36), rates preserved: AVG=0.237 HR/AB=0.027

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.145
predicted_3B0.000-0.033
predicted_AB3.000-0.359
predicted_AVG0.3330.096
predicted_BB0.000-0.114
predicted_H1.0000.205
predicted_HR0.000-0.090
predicted_OBP0.3330.071
predicted_R0.000-0.301
predicted_RBI0.000-0.335
predicted_SLG0.333-0.047
predicted_SO1.000-0.033
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 64
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0003.0001.0000.0000.0000.0001.0000.0009.0000.17650.17650.23530.17650.00000.00000.00000.5294
last_100.2010-35.0006.0001.0001.0000.0004.0001.0000.00014.0000.17140.17140.25710.17140.00000.11430.00000.4000
season0.6064-212.00055.0009.0002.0007.00021.00020.0008.00060.0000.25940.30530.41980.25940.03300.09910.03770.2830
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1500
predicted_3B0.0360
predicted_AB3.4260
predicted_AVG0.2282
predicted_BB0.0990
predicted_H0.7820
predicted_HBP0.0550
predicted_HR0.0740
predicted_OBP0.2599
predicted_R0.2760
predicted_RBI0.3020
predicted_SLG0.3573
predicted_SO1.1640
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.14100.15000.1447model_form_blend
predicted_3B0.03100.03600.0331model_form_blend
predicted_AB3.31203.42603.3594model_form_blend
predicted_AVG0.24100.22820.2357model_form_blend
predicted_BB0.12500.09900.1142model_form_blend
predicted_H0.79000.78200.7867model_form_blend
predicted_HBP-0.05500.0550form_only
predicted_HR0.10000.07400.0892model_form_blend
predicted_OBP0.27500.25990.2687model_form_blend
predicted_R0.31200.27600.2970model_form_blend
predicted_RBI0.35000.30200.3300model_form_blend
predicted_SLG0.37200.35730.3659model_form_blend
predicted_SO0.93801.16401.0320model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date178
Season rows before report date178
Report year2026
Profile rows used64
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO1
SF0
HBP0
season_avg0.259

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP1
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB1
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_LAA@ARI
game_typefull
mlbID672724
playerID672724
playerNameOswald Peraza
pos2B
startedTrue
startingPosition2B
teamLAA
teamID13
game_date2026-06-17
sl_k_percent26.3
sl_bb_percent3.9
sl_woba0.32
sl_xwoba0.308
sl_xba0.254
sl_xslg0.398
sl_sweet_spot_percent38.6
sl_barrel_batted_rate8.6
sl_hard_hit_percent37.3
sl_exit_velocity_avg87.4
sl_launch_angle_avg10.1
sl_whiff_percent30.5
sl_swing_percent55.7
Logan O'Hoppe (681351) · BATTER · C · Team LAA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 138
All-history rows before 20260618: 138
System season_avg: 0.2350
Data season_avg (2026 season-to-date): 0.2336
Diff (system - data): 0.0014
System opponent_avg: 0.1820

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1700.0000.000Hitting_2B0.1381.000-0.138-1.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.2554.0003.000Hitting_AB3.3194.0000.6810.000
predicted_AVG0.2730.2500.333Hitting_AVG0.2340.7500.016-0.500
predicted_BB0.2770.0000.000Hitting_BB0.3550.000-0.3550.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.7801.0001.000Hitting_H0.7753.0000.225-2.000
predicted_HR0.1000.0000.000Hitting_HR0.0430.000-0.0430.000
predicted_OBP0.3380.2500.333Hitting_OBP0.3210.750-0.071-0.500
predicted_R0.3621.0000.000Hitting_R0.4061.0000.5940.000
predicted_RBI0.3700.0000.000Hitting_RBI0.3770.000-0.3770.000
predicted_SLG0.4400.2500.333Hitting_SLG0.3141.000-0.064-0.750
predicted_SO0.8510.0001.000Hitting_SO0.8191.000-0.819-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics3
Deboosted Metrics7
Better Metrics4
Worse Metrics6
Biggest Boostpredicted_AB: 3.2550 -> 4.0000 (boost 0.7450, better)
Biggest Deboostpredicted_SO: 0.8510 -> 0.0000 (deboost -0.8510, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend44040predicted_H: 0.7800 -> 0.8852 (boost 0.1052, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.4553 -> 0.4269 (deboost -0.0284, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_SO: 0.8331 -> 1.0000 (boost 0.1669, worse)predicted_RBI: 0.3933 -> 0.0000 (deboost -0.3933, worse)AB rounded to 3 (raw=3.32), rates preserved: AVG=0.269 HR/AB=0.031
5consistency_constraints10101-predicted_R: 0.3736 -> 0.0000 (deboost -0.3736, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2695 -> 0.3330 (boost 0.0635, better)predicted_SLG: 0.4269 -> 0.3330 (deboost -0.0939, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference32130predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.4269 (boost 0.0939, better)predicted_AVG: 0.3330 -> 0.2695 (deboost -0.0635, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "681351",
  "player_name": "Logan O'Hoppe",
  "position": "C",
  "team": "LAA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.17,
        "predicted_3B": 0.0,
        "predicted_AB": 3.255,
        "predicted_AVG": 0.273,
        "predicted_BB": 0.277,
        "predicted_H": 0.78,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.338,
        "predicted_R": 0.362,
        "predicted_RBI": 0.37,
        "predicted_SLG": 0.44,
        "predicted_SO": 0.851
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2159,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.3192,
        "predicted_AVG": 0.2858,
        "predicted_BB": 0.2404,
        "predicted_H": 0.8852,
        "predicted_HBP": 0.039,
        "predicted_HR": 0.1004,
        "predicted_OBP": 0.3428,
        "predicted_R": 0.3681,
        "predicted_RBI": 0.3875,
        "predicted_SLG": 0.4553,
        "predicted_SO": 0.8323
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.17,
          "after": 0.2159,
          "delta": 0.0459,
          "percent_delta": 0.27,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.255,
          "after": 3.3192,
          "delta": 0.0642,
          "percent_delta": 0.0197,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.273,
          "after": 0.2858,
          "delta": 0.0128,
          "percent_delta": 0.0469,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.277,
          "after": 0.2404,
          "delta": -0.0366,
          "percent_delta": -0.1321,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.78,
          "after": 0.8852,
          "delta": 0.1052,
          "percent_delta": 0.1349,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.1004,
          "delta": 0.0004,
          "percent_delta": 0.004,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.338,
          "after": 0.3428,
          "delta": 0.0048,
          "percent_delta": 0.0142,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.362,
          "after": 0.3681,
          "delta": 0.0061,
          "percent_delta": 0.0169,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.37,
          "after": 0.3875,
          "delta": 0.0175,
          "percent_delta": 0.0473,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.44,
          "after": 0.4553,
          "delta": 0.0153,
          "percent_delta": 0.0348,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.851,
          "after": 0.8323,
          "delta": -0.0187,
          "percent_delta": -0.022,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 4,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.78,
          "after": 0.8852,
          "delta": 0.1052,
          "percent_delta": 0.1349,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 47
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2159,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.3192,
        "predicted_AVG": 0.2695,
        "predicted_BB": 0.2402,
        "predicted_H": 0.8944,
        "predicted_HBP": 0.039,
        "predicted_HR": 0.1017,
        "predicted_OBP": 0.3188,
        "predicted_R": 0.3736,
        "predicted_RBI": 0.3933,
        "predicted_SLG": 0.4269,
        "predicted_SO": 0.8331
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2159,
          "after": 0.2159,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.3192,
          "after": 3.3192,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2858,
          "after": 0.2695,
          "delta": -0.0163,
          "percent_delta": -0.057,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2404,
          "after": 0.2402,
          "delta": -0.0002,
          "percent_delta": -0.0008,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8852,
          "after": 0.8944,
          "delta": 0.0092,
          "percent_delta": 0.0104,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.039,
          "after": 0.039,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1004,
          "after": 0.1017,
          "delta": 0.0013,
          "percent_delta": 0.0129,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3428,
          "after": 0.3188,
          "delta": -0.024,
          "percent_delta": -0.07,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3681,
          "after": 0.3736,
          "delta": 0.0055,
          "percent_delta": 0.0149,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3875,
          "after": 0.3933,
          "delta": 0.0058,
          "percent_delta": 0.015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4553,
          "after": 0.4269,
          "delta": -0.0284,
          "percent_delta": -0.0624,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8323,
          "after": 0.8331,
          "delta": 0.0008,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4553,
          "after": 0.4269,
          "delta": -0.0284,
          "percent_delta": -0.0624,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.32), rates preserved: AVG=0.269 HR/AB=0.031",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2159,
          "after": 0.0,
          "delta": -0.2159,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.3192,
          "after": 3.0,
          "delta": -0.3192,
          "percent_delta": -0.0962,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2402,
          "after": 0.0,
          "delta": -0.2402,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8944,
          "after": 1.0,
          "delta": 0.1056,
          "percent_delta": 0.1181,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.039,
          "after": 0.0,
          "delta": -0.039,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1017,
          "after": 0.0,
          "delta": -0.1017,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3933,
          "after": 0.0,
          "delta": -0.3933,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8331,
          "after": 1.0,
          "delta": 0.1669,
          "percent_delta": 0.2003,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.8331,
          "after": 1.0,
          "delta": 0.1669,
          "percent_delta": 0.2003,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3933,
          "after": 0.0,
          "delta": -0.3933,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3736,
          "after": 0.0,
          "delta": -0.3736,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3736,
          "after": 0.0,
          "delta": -0.3736,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2695,
          "after": 0.333,
          "delta": 0.0635,
          "percent_delta": 0.2356,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3188,
          "after": 0.333,
          "delta": 0.0142,
          "percent_delta": 0.0445,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4269,
          "after": 0.333,
          "delta": -0.0939,
          "percent_delta": -0.22,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2695,
          "after": 0.333,
          "delta": 0.0635,
          "percent_delta": 0.2356,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4269,
          "after": 0.333,
          "delta": -0.0939,
          "percent_delta": -0.22,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2695,
        "predicted_BB": 0.0,
        "predicted_C": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3188,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4269,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2695,
          "delta": -0.0635,
          "percent_delta": -0.1908,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3188,
          "delta": -0.0142,
          "percent_delta": -0.0428,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4269,
          "delta": 0.0939,
          "percent_delta": 0.282,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4269,
          "delta": 0.0939,
          "percent_delta": 0.282,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2695,
          "delta": -0.0635,
          "percent_delta": -0.1908,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.17,
        "after": 0.0,
        "delta": -0.17,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.255,
        "after": 4.0,
        "delta": 0.745,
        "percent_delta": 0.2289,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.273,
        "after": 0.2695,
        "delta": -0.0035,
        "percent_delta": -0.0128,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.277,
        "after": 0.0,
        "delta": -0.277,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.78,
        "after": 1.0,
        "delta": 0.22,
        "percent_delta": 0.2821,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.338,
        "after": 0.3188,
        "delta": -0.0192,
        "percent_delta": -0.0568,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.362,
        "after": 1.0,
        "delta": 0.638,
        "percent_delta": 1.7624,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.37,
        "after": 0.0,
        "delta": -0.37,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.44,
        "after": 0.4269,
        "delta": -0.0131,
        "percent_delta": -0.0298,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.851,
        "after": 0.0,
        "delta": -0.851,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 3,
      "deboosted_metrics": 7,
      "better_metrics": 4,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.255,
        "after": 4.0,
        "delta": 0.745,
        "percent_delta": 0.2289,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.851,
        "after": 0.0,
        "delta": -0.851,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.170-
predicted_3B0.000-
predicted_AB3.255-
predicted_AVG0.273-
predicted_BB0.277-
predicted_H0.780-
predicted_HR0.100-
predicted_OBP0.338-
predicted_R0.362-
predicted_RBI0.370-
predicted_SLG0.440-
predicted_SO0.851-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2160.046
predicted_3B0.0010.001
predicted_AB3.3190.064
predicted_AVG0.2860.013
predicted_BB0.240-0.037
predicted_H0.8850.105
predicted_HBP0.039-
predicted_HR0.1000.000
predicted_OBP0.3430.005
predicted_R0.3680.006
predicted_RBI0.3880.018
predicted_SLG0.4550.015
predicted_SO0.832-0.019
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2160.000
predicted_3B0.0010.000
predicted_AB3.3190.000
predicted_AVG0.270-0.016
predicted_BB0.240-0.000
predicted_H0.8940.009
predicted_HBP0.0390.000
predicted_HR0.1020.001
predicted_OBP0.319-0.024
predicted_R0.3740.006
predicted_RBI0.3930.006
predicted_SLG0.427-0.028
predicted_SO0.8330.001
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.32), rates preserved: AVG=0.269 HR/AB=0.031

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.216
predicted_3B0.000-0.001
predicted_AB3.000-0.319
predicted_AVG0.3330.064
predicted_BB0.000-0.240
predicted_H1.0000.106
predicted_HR0.000-0.102
predicted_OBP0.3330.014
predicted_R0.000-0.374
predicted_RBI0.000-0.393
predicted_SLG0.333-0.094
predicted_SO1.0000.167
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 47
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0009.0003.0000.0001.0002.0002.0000.0003.0000.50000.50000.83330.50000.05560.11110.00000.1667
last_100.2010-33.00012.0004.0000.0001.0005.0003.0000.0008.0000.36360.36360.57580.36360.03030.15150.00000.2424
season0.6047-153.00036.0008.0000.0003.00017.00017.00013.00040.0000.23530.30590.34640.23530.01960.11110.08500.2614
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2830
predicted_3B0.0020
predicted_AB3.4130
predicted_AVG0.3044
predicted_BB0.1870
predicted_H1.0390
predicted_HBP0.0390
predicted_HR0.1010
predicted_OBP0.3498
predicted_R0.3770
predicted_RBI0.4130
predicted_SLG0.4777
predicted_SO0.8050
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.17000.28300.2159model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB3.25503.41303.3192model_form_blend
predicted_AVG0.27300.30440.2858model_form_blend
predicted_BB0.27700.18700.2404model_form_blend
predicted_H0.78001.03900.8852model_form_blend
predicted_HBP-0.03900.0390form_only
predicted_HR0.10000.10100.1004model_form_blend
predicted_OBP0.33800.34980.3428model_form_blend
predicted_R0.36200.37700.3681model_form_blend
predicted_RBI0.37000.41300.3875model_form_blend
predicted_SLG0.44000.47770.4553model_form_blend
predicted_SO0.85100.80500.8323model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date138
Season rows before report date138
Report year2026
Profile rows used47
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R1
RBI0
BB0
SO0
SF0
HBP0
season_avg0.235

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB4
Hitting_AVG0.75
Hitting_BB0
Hitting_GIDP0
Hitting_H3
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB4
Hitting_battingOrder8
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedC
gameID20260616_LAA@ARI
game_typefull
mlbID681351
playerID681351
playerNameLogan O'Hoppe
posC
startedTrue
startingPositionC
teamLAA
teamID13
game_date2026-06-16
sl_k_percent23.4
sl_bb_percent7.6
sl_woba0.294
sl_xwoba0.289
sl_xba0.207
sl_xslg0.363
sl_sweet_spot_percent29.6
sl_barrel_batted_rate12.2
sl_hard_hit_percent39.1
sl_exit_velocity_avg87.5
sl_launch_angle_avg17.1
sl_whiff_percent28.4
sl_swing_percent49.8
Denzer Guzman (694203) · BATTER · 3B · Team LAA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 8
All-history rows before 20260618: 8
System season_avg: 0.2650
Data season_avg (2026 season-to-date): 0.2647
Diff (system - data): 0.0003
System opponent_avg: 0.2650

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2500.0000.000Hitting_2B0.2501.000-0.250-1.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.2503.0004.000Hitting_AB4.2504.000-1.250-1.000
predicted_AVG0.2500.0000.250Hitting_AVG0.2650.250-0.265-0.250
predicted_BB0.0001.0000.000Hitting_BB0.0000.0001.0001.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H1.0500.0001.000Hitting_H1.1251.000-1.125-1.000
predicted_HR0.0900.0000.000Hitting_HR0.0000.0000.0000.000
predicted_OBP0.3140.2500.250Hitting_OBP0.2650.250-0.0150.000
predicted_R0.3750.0000.000Hitting_R0.3750.000-0.3750.000
predicted_RBI0.5900.0001.000Hitting_RBI0.6250.000-0.6250.000
predicted_SLG0.3880.0000.250Hitting_SLG0.3240.500-0.324-0.500
predicted_SO0.7501.0001.000Hitting_SO0.7502.0000.250-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics2
Worse Metrics9
Biggest Boostpredicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)
Biggest Deboostpredicted_AB: 4.2500 -> 3.0000 (deboost -1.2500, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend21111predicted_AVG: 0.2500 -> 0.2614 (boost 0.0114, better)predicted_AB: 4.2500 -> 4.1677 (deboost -0.0823, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3146 -> 0.2694 (deboost -0.0452, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62415predicted_RBI: 0.6106 -> 1.0000 (boost 0.3894, better)predicted_2B: 0.2356 -> 0.0000 (deboost -0.2356, worse)AB rounded to 4 (raw=4.25), rates preserved: AVG=0.256 HR/AB=0.020
5consistency_constraints10101-predicted_R: 0.4239 -> 0.0000 (deboost -0.4239, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.3788 -> 0.2500 (deboost -0.1288, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference41313predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2500 -> 0.3788 (boost 0.1288, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "694203",
  "player_name": "Denzer Guzman",
  "position": "3B",
  "team": "LAA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.25,
        "predicted_3B": 0.0,
        "predicted_AB": 4.25,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.05,
        "predicted_HR": 0.09,
        "predicted_OBP": 0.314,
        "predicted_R": 0.375,
        "predicted_RBI": 0.59,
        "predicted_SLG": 0.388,
        "predicted_SO": 0.75
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2356,
        "predicted_3B": 0.0022,
        "predicted_AB": 4.1677,
        "predicted_AVG": 0.2614,
        "predicted_BB": 0.0451,
        "predicted_H": 1.0788,
        "predicted_HBP": 0.017,
        "predicted_HR": 0.0819,
        "predicted_OBP": 0.3146,
        "predicted_R": 0.4176,
        "predicted_RBI": 0.6016,
        "predicted_SLG": 0.3884,
        "predicted_SO": 0.771
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.25,
          "after": 0.2356,
          "delta": -0.0144,
          "percent_delta": -0.0576,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0022,
          "delta": 0.0022,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.25,
          "after": 4.1677,
          "delta": -0.0823,
          "percent_delta": -0.0194,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2614,
          "delta": 0.0114,
          "percent_delta": 0.0456,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0451,
          "delta": 0.0451,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.05,
          "after": 1.0788,
          "delta": 0.0288,
          "percent_delta": 0.0274,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.09,
          "after": 0.0819,
          "delta": -0.0081,
          "percent_delta": -0.09,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.314,
          "after": 0.3146,
          "delta": 0.0006,
          "percent_delta": 0.0019,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.375,
          "after": 0.4176,
          "delta": 0.0426,
          "percent_delta": 0.1136,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.59,
          "after": 0.6016,
          "delta": 0.0116,
          "percent_delta": 0.0197,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.388,
          "after": 0.3884,
          "delta": 0.0004,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.75,
          "after": 0.771,
          "delta": 0.021,
          "percent_delta": 0.028,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2614,
          "delta": 0.0114,
          "percent_delta": 0.0456,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.25,
          "after": 4.1677,
          "delta": -0.0823,
          "percent_delta": -0.0194,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 8,
        "season": 8
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2356,
        "predicted_3B": 0.0022,
        "predicted_AB": 4.1677,
        "predicted_AVG": 0.2615,
        "predicted_BB": 0.0451,
        "predicted_H": 1.09,
        "predicted_HBP": 0.017,
        "predicted_HR": 0.083,
        "predicted_OBP": 0.2694,
        "predicted_R": 0.4239,
        "predicted_RBI": 0.6106,
        "predicted_SLG": 0.3788,
        "predicted_SO": 0.7718
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2356,
          "after": 0.2356,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0022,
          "after": 0.0022,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.1677,
          "after": 4.1677,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2614,
          "after": 0.2615,
          "delta": 0.0001,
          "percent_delta": 0.0004,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0451,
          "after": 0.0451,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0788,
          "after": 1.09,
          "delta": 0.0112,
          "percent_delta": 0.0104,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.017,
          "after": 0.017,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0819,
          "after": 0.083,
          "delta": 0.0011,
          "percent_delta": 0.0134,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3146,
          "after": 0.2694,
          "delta": -0.0452,
          "percent_delta": -0.1437,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4176,
          "after": 0.4239,
          "delta": 0.0063,
          "percent_delta": 0.0151,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6016,
          "after": 0.6106,
          "delta": 0.009,
          "percent_delta": 0.015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3884,
          "after": 0.3788,
          "delta": -0.0096,
          "percent_delta": -0.0247,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.771,
          "after": 0.7718,
          "delta": 0.0008,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3146,
          "after": 0.2694,
          "delta": -0.0452,
          "percent_delta": -0.1437,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.25), rates preserved: AVG=0.256 HR/AB=0.020",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2356,
          "after": 0.0,
          "delta": -0.2356,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0022,
          "after": 0.0,
          "delta": -0.0022,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.1677,
          "after": 4.0,
          "delta": -0.1677,
          "percent_delta": -0.0402,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0451,
          "after": 0.0,
          "delta": -0.0451,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.09,
          "after": 1.0,
          "delta": -0.09,
          "percent_delta": -0.0826,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.017,
          "after": 0.0,
          "delta": -0.017,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.083,
          "after": 0.0,
          "delta": -0.083,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6106,
          "after": 1.0,
          "delta": 0.3894,
          "percent_delta": 0.6377,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7718,
          "after": 1.0,
          "delta": 0.2282,
          "percent_delta": 0.2957,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.6106,
          "after": 1.0,
          "delta": 0.3894,
          "percent_delta": 0.6377,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_2B",
          "before": 0.2356,
          "after": 0.0,
          "delta": -0.2356,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4239,
          "after": 0.0,
          "delta": -0.4239,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4239,
          "after": 0.0,
          "delta": -0.4239,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2615,
          "after": 0.25,
          "delta": -0.0115,
          "percent_delta": -0.044,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2694,
          "after": 0.25,
          "delta": -0.0194,
          "percent_delta": -0.072,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3788,
          "after": 0.25,
          "delta": -0.1288,
          "percent_delta": -0.34,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3788,
          "after": 0.25,
          "delta": -0.1288,
          "percent_delta": -0.34,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 1,
        "deboosted_metrics": 3,
        "better_metrics": 1,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2615,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2694,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3788,
        "predicted_SO": 1.0,
        "predicted_TB": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2615,
          "delta": 0.0115,
          "percent_delta": 0.0462,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2694,
          "delta": 0.0194,
          "percent_delta": 0.0778,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3788,
          "delta": 0.1288,
          "percent_delta": 0.5154,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3788,
          "delta": 0.1288,
          "percent_delta": 0.5154,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.25,
        "after": 0.0,
        "delta": -0.25,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.25,
        "after": 3.0,
        "delta": -1.25,
        "percent_delta": -0.2941,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.25,
        "after": 0.2615,
        "delta": 0.0115,
        "percent_delta": 0.046,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 1.0,
        "delta": 1.0,
        "percent_delta": null,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.05,
        "after": 0.0,
        "delta": -1.05,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.09,
        "after": 0.0,
        "delta": -0.09,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.314,
        "after": 0.2694,
        "delta": -0.0446,
        "percent_delta": -0.142,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.375,
        "after": 0.0,
        "delta": -0.375,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.59,
        "after": 0.0,
        "delta": -0.59,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.388,
        "after": 0.3788,
        "delta": -0.0092,
        "percent_delta": -0.0237,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.75,
        "after": 1.0,
        "delta": 0.25,
        "percent_delta": 0.3333,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 2,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 1.0,
        "delta": 1.0,
        "percent_delta": null,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 4.25,
        "after": 3.0,
        "delta": -1.25,
        "percent_delta": -0.2941,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.250-
predicted_3B0.000-
predicted_AB4.250-
predicted_AVG0.250-
predicted_BB0.000-
predicted_H1.050-
predicted_HR0.090-
predicted_OBP0.314-
predicted_R0.375-
predicted_RBI0.590-
predicted_SLG0.388-
predicted_SO0.750-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.236-0.014
predicted_3B0.0020.002
predicted_AB4.168-0.082
predicted_AVG0.2610.011
predicted_BB0.0450.045
predicted_H1.0790.029
predicted_HBP0.017-
predicted_HR0.082-0.008
predicted_OBP0.3150.001
predicted_R0.4180.043
predicted_RBI0.6020.012
predicted_SLG0.3880.000
predicted_SO0.7710.021
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2360.000
predicted_3B0.0020.000
predicted_AB4.1680.000
predicted_AVG0.2620.000
predicted_BB0.0450.000
predicted_H1.0900.011
predicted_HBP0.0170.000
predicted_HR0.0830.001
predicted_OBP0.269-0.045
predicted_R0.4240.006
predicted_RBI0.6110.009
predicted_SLG0.379-0.010
predicted_SO0.7720.001
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.25), rates preserved: AVG=0.256 HR/AB=0.020

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.236
predicted_3B0.000-0.002
predicted_AB4.000-0.168
predicted_AVG0.250-0.012
predicted_BB0.000-0.045
predicted_H1.000-0.090
predicted_HR0.000-0.083
predicted_OBP0.250-0.019
predicted_R0.000-0.424
predicted_RBI1.0000.389
predicted_SLG0.250-0.129
predicted_SO1.0000.228
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 8
Reference playing time: 4.250
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.0007.0001.0000.0000.0004.0003.0000.0004.0000.35000.35000.40000.35000.00000.20000.00000.2000
last_100.208-34.0009.0002.0000.0000.0005.0003.0000.0006.0000.26470.26470.32350.26470.00000.14710.00000.1765
season0.608-34.0009.0002.0000.0000.0005.0003.0000.0006.0000.26470.26470.32350.26470.00000.14710.00000.1765
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2040
predicted_3B0.0070
predicted_AB3.9870
predicted_AVG0.2864
predicted_BB0.1440
predicted_H1.1420
predicted_HBP0.0170
predicted_HR0.0640
predicted_OBP0.3159
predicted_R0.5110
predicted_RBI0.6270
predicted_SLG0.3893
predicted_SO0.8170
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.25000.20400.2356model_form_blend
predicted_3B0.00000.00700.0022model_form_blend
predicted_AB4.25003.98704.1677model_form_blend
predicted_AVG0.25000.28640.2614model_form_blend
predicted_BB0.00000.14400.0451model_form_blend
predicted_H1.05001.14201.0788model_form_blend
predicted_HBP-0.01700.0170form_only
predicted_HR0.09000.06400.0819model_form_blend
predicted_OBP0.31400.31590.3146model_form_blend
predicted_R0.37500.51100.4176model_form_blend
predicted_RBI0.59000.62700.6016model_form_blend
predicted_SLG0.38800.38930.3884model_form_blend
predicted_SO0.75000.81700.7710model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date8
Season rows before report date8
Report year2026
Profile rows used8
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO1
SF0
HBP0
season_avg0.265

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB2
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260617_LAA@ARI
game_typefull
mlbID694203
playerID694203
playerNameDenzer Guzman
pos3B
startedTrue
startingPosition3B
teamLAA
teamID13
game_date2026-06-17
sl_k_percent17.6
sl_bb_percent0.0
sl_woba0.258
sl_xwoba0.254
sl_xba0.245
sl_xslg0.341
sl_sweet_spot_percent21.4
sl_barrel_batted_rate0.0
sl_hard_hit_percent42.9
sl_exit_velocity_avg89.2
sl_launch_angle_avg8.6
sl_whiff_percent25.4
sl_swing_percent60.4
Jose Siri (642350) · BATTER · CF · Team LAA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 31
All-history rows before 20260618: 31
System season_avg: 0.3000
Data season_avg (2026 season-to-date): 0.2742
Diff (system - data): 0.0258
System opponent_avg: 0.2000
System season_avg diverges from 2026 season-to-date by 0.0258. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1500.0000.000Hitting_2B0.1290.000-0.1290.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.5004.0003.000Hitting_AB2.0003.0002.0001.000
predicted_AVG0.3060.5000.333Hitting_AVG0.2740.0000.2260.500
predicted_BB0.2000.0000.000Hitting_BB0.1610.000-0.1610.000
predicted_CS-0.0000.000BaseRunning_CS0.0320.000-0.0320.000
predicted_H0.5302.0001.000Hitting_H0.5480.0001.4522.000
predicted_HR0.1001.0000.000Hitting_HR0.0970.0000.9031.000
predicted_OBP0.3430.5000.333Hitting_OBP0.3380.0000.1620.500
predicted_R0.5501.0001.000Hitting_R0.4190.0000.5811.000
predicted_RBI0.3702.0001.000Hitting_RBI0.3870.0001.6132.000
predicted_SLG0.4481.2500.333Hitting_SLG0.4840.0000.7661.250
predicted_SO0.8001.0001.000Hitting_SO0.7101.0000.2900.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics6
Deboosted Metrics5
Better Metrics5
Worse Metrics6
Biggest Boostpredicted_RBI: 0.3700 -> 2.0000 (boost 1.6300, better)
Biggest Deboostpredicted_BB: 0.2000 -> 0.0000 (deboost -0.2000, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend54141predicted_AB: 2.5000 -> 2.6196 (boost 0.1196, better)predicted_AVG: 0.3060 -> 0.2936 (deboost -0.0124, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_AVG: 0.2936 -> 0.2364 (deboost -0.0572, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling84435predicted_RBI: 0.4393 -> 1.0000 (boost 0.5607, better)predicted_BB: 0.2355 -> 0.0000 (deboost -0.2355, worse)AB rounded to 3 (raw=2.62), rates preserved: AVG=0.236 HR/AB=0.046
5consistency_constraints11010predicted_R: 0.5259 -> 1.0000 (boost 0.4741, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2364 -> 0.3330 (boost 0.0966, better)predicted_SLG: 0.4275 -> 0.3330 (deboost -0.0945, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference44040predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.4275 (boost 0.0945, better)predicted_AVG: 0.3330 -> 0.2364 (deboost -0.0966, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "642350",
  "player_name": "Jose Siri",
  "position": "CF",
  "team": "LAA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.15,
        "predicted_3B": 0.0,
        "predicted_AB": 2.5,
        "predicted_AVG": 0.306,
        "predicted_BB": 0.2,
        "predicted_H": 0.53,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.343,
        "predicted_R": 0.55,
        "predicted_RBI": 0.37,
        "predicted_SLG": 0.448,
        "predicted_SO": 0.8
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1379,
        "predicted_3B": 0.0014,
        "predicted_AB": 2.6196,
        "predicted_AVG": 0.2936,
        "predicted_BB": 0.2357,
        "predicted_H": 0.6129,
        "predicted_HBP": 0.084,
        "predicted_HR": 0.1184,
        "predicted_OBP": 0.3479,
        "predicted_R": 0.5181,
        "predicted_RBI": 0.4328,
        "predicted_SLG": 0.4574,
        "predicted_SO": 0.8118
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.15,
          "after": 0.1379,
          "delta": -0.0121,
          "percent_delta": -0.0807,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0014,
          "delta": 0.0014,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.5,
          "after": 2.6196,
          "delta": 0.1196,
          "percent_delta": 0.0478,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.306,
          "after": 0.2936,
          "delta": -0.0124,
          "percent_delta": -0.0405,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2,
          "after": 0.2357,
          "delta": 0.0357,
          "percent_delta": 0.1785,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.53,
          "after": 0.6129,
          "delta": 0.0829,
          "percent_delta": 0.1564,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.1184,
          "delta": 0.0184,
          "percent_delta": 0.184,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.343,
          "after": 0.3479,
          "delta": 0.0049,
          "percent_delta": 0.0143,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.55,
          "after": 0.5181,
          "delta": -0.0319,
          "percent_delta": -0.058,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.37,
          "after": 0.4328,
          "delta": 0.0628,
          "percent_delta": 0.1697,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.448,
          "after": 0.4574,
          "delta": 0.0094,
          "percent_delta": 0.021,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8,
          "after": 0.8118,
          "delta": 0.0118,
          "percent_delta": 0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 4,
        "deboosted_metrics": 1,
        "better_metrics": 4,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.5,
          "after": 2.6196,
          "delta": 0.1196,
          "percent_delta": 0.0478,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.306,
          "after": 0.2936,
          "delta": -0.0124,
          "percent_delta": -0.0405,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 21
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1379,
        "predicted_3B": 0.0014,
        "predicted_AB": 2.6196,
        "predicted_AVG": 0.2364,
        "predicted_BB": 0.2355,
        "predicted_H": 0.6193,
        "predicted_HBP": 0.084,
        "predicted_HR": 0.1199,
        "predicted_OBP": 0.2994,
        "predicted_R": 0.5259,
        "predicted_RBI": 0.4393,
        "predicted_SLG": 0.4275,
        "predicted_SO": 0.8126
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1379,
          "after": 0.1379,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0014,
          "after": 0.0014,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.6196,
          "after": 2.6196,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2936,
          "after": 0.2364,
          "delta": -0.0572,
          "percent_delta": -0.1948,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2357,
          "after": 0.2355,
          "delta": -0.0002,
          "percent_delta": -0.0008,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6129,
          "after": 0.6193,
          "delta": 0.0064,
          "percent_delta": 0.0104,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.084,
          "after": 0.084,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1184,
          "after": 0.1199,
          "delta": 0.0015,
          "percent_delta": 0.0127,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3479,
          "after": 0.2994,
          "delta": -0.0485,
          "percent_delta": -0.1394,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5181,
          "after": 0.5259,
          "delta": 0.0078,
          "percent_delta": 0.0151,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4328,
          "after": 0.4393,
          "delta": 0.0065,
          "percent_delta": 0.015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4574,
          "after": 0.4275,
          "delta": -0.0299,
          "percent_delta": -0.0654,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8118,
          "after": 0.8126,
          "delta": 0.0008,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2936,
          "after": 0.2364,
          "delta": -0.0572,
          "percent_delta": -0.1948,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.62), rates preserved: AVG=0.236 HR/AB=0.046",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1379,
          "after": 0.0,
          "delta": -0.1379,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0014,
          "after": 0.0,
          "delta": -0.0014,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.6196,
          "after": 3.0,
          "delta": 0.3804,
          "percent_delta": 0.1452,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2355,
          "after": 0.0,
          "delta": -0.2355,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6193,
          "after": 1.0,
          "delta": 0.3807,
          "percent_delta": 0.6147,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.084,
          "after": 0.0,
          "delta": -0.084,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1199,
          "after": 0.0,
          "delta": -0.1199,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4393,
          "after": 1.0,
          "delta": 0.5607,
          "percent_delta": 1.2763,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8126,
          "after": 1.0,
          "delta": 0.1874,
          "percent_delta": 0.2306,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 4,
        "deboosted_metrics": 4,
        "better_metrics": 3,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.4393,
          "after": 1.0,
          "delta": 0.5607,
          "percent_delta": 1.2763,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.2355,
          "after": 0.0,
          "delta": -0.2355,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5259,
          "after": 1.0,
          "delta": 0.4741,
          "percent_delta": 0.9015,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5259,
          "after": 1.0,
          "delta": 0.4741,
          "percent_delta": 0.9015,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2364,
          "after": 0.333,
          "delta": 0.0966,
          "percent_delta": 0.4086,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2994,
          "after": 0.333,
          "delta": 0.0336,
          "percent_delta": 0.1122,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4275,
          "after": 0.333,
          "delta": -0.0945,
          "percent_delta": -0.2211,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2364,
          "after": 0.333,
          "delta": 0.0966,
          "percent_delta": 0.4086,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4275,
          "after": 0.333,
          "delta": -0.0945,
          "percent_delta": -0.2211,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_R": 1.0,
        "predicted_RBI": 2.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 4,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2364,
        "predicted_BB": 0.0,
        "predicted_CF": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_OBP": 0.2994,
        "predicted_R": 1.0,
        "predicted_RBI": 2.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4275,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2364,
          "delta": -0.0966,
          "percent_delta": -0.2901,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2994,
          "delta": -0.0336,
          "percent_delta": -0.101,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4275,
          "delta": 0.0945,
          "percent_delta": 0.2837,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4275,
          "delta": 0.0945,
          "percent_delta": 0.2837,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2364,
          "delta": -0.0966,
          "percent_delta": -0.2901,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.15,
        "after": 0.0,
        "delta": -0.15,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.5,
        "after": 4.0,
        "delta": 1.5,
        "percent_delta": 0.6,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.306,
        "after": 0.2364,
        "delta": -0.0696,
        "percent_delta": -0.2275,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.2,
        "after": 0.0,
        "delta": -0.2,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.53,
        "after": 2.0,
        "delta": 1.47,
        "percent_delta": 2.7736,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 1.0,
        "delta": 0.9,
        "percent_delta": 9.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.343,
        "after": 0.2994,
        "delta": -0.0436,
        "percent_delta": -0.1271,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.55,
        "after": 1.0,
        "delta": 0.45,
        "percent_delta": 0.8182,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.37,
        "after": 2.0,
        "delta": 1.63,
        "percent_delta": 4.4054,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.448,
        "after": 0.4275,
        "delta": -0.0205,
        "percent_delta": -0.0458,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.8,
        "after": 1.0,
        "delta": 0.2,
        "percent_delta": 0.25,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 6,
      "deboosted_metrics": 5,
      "better_metrics": 5,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_RBI",
        "before": 0.37,
        "after": 2.0,
        "delta": 1.63,
        "percent_delta": 4.4054,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_BB",
        "before": 0.2,
        "after": 0.0,
        "delta": -0.2,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.150-
predicted_3B0.000-
predicted_AB2.500-
predicted_AVG0.306-
predicted_BB0.200-
predicted_H0.530-
predicted_HR0.100-
predicted_OBP0.343-
predicted_R0.550-
predicted_RBI0.370-
predicted_SLG0.448-
predicted_SO0.800-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.138-0.012
predicted_3B0.0010.001
predicted_AB2.6200.120
predicted_AVG0.294-0.012
predicted_BB0.2360.036
predicted_H0.6130.083
predicted_HBP0.084-
predicted_HR0.1180.018
predicted_OBP0.3480.005
predicted_R0.518-0.032
predicted_RBI0.4330.063
predicted_SLG0.4570.009
predicted_SO0.8120.012
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1380.000
predicted_3B0.0010.000
predicted_AB2.6200.000
predicted_AVG0.236-0.057
predicted_BB0.235-0.000
predicted_H0.6190.006
predicted_HBP0.0840.000
predicted_HR0.1200.002
predicted_OBP0.299-0.048
predicted_R0.5260.008
predicted_RBI0.4390.007
predicted_SLG0.427-0.030
predicted_SO0.8130.001
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.62), rates preserved: AVG=0.236 HR/AB=0.046

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.138
predicted_3B0.000-0.001
predicted_AB3.0000.380
predicted_AVG0.3330.097
predicted_BB0.000-0.235
predicted_H1.0000.381
predicted_HR0.000-0.120
predicted_OBP0.3330.034
predicted_R1.0000.474
predicted_RBI1.0000.561
predicted_SLG0.333-0.094
predicted_SO1.0000.187
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR1.0001.000
PA4.000-
R1.0000.000
RBI2.0001.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 21
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-10.0002.0000.0000.0001.0002.0001.0002.0004.0000.20000.38460.50000.20000.10000.20000.20000.4000
last_100.2010-23.0007.0000.0000.0001.0005.0003.0004.0007.0000.30430.42860.43480.30440.04350.21740.17390.3044
season0.6021-50.00015.0003.0000.0003.00012.00011.0004.00016.0000.30000.36360.54000.30000.06000.24000.08000.3200
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1150
predicted_3B0.0040
predicted_AB2.8450
predicted_AVG0.2701
predicted_BB0.3030
predicted_H0.7690
predicted_HBP0.0840
predicted_HR0.1530
predicted_OBP0.3570
predicted_R0.4580
predicted_RBI0.5510
predicted_SLG0.4752
predicted_SO0.8340
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.15000.11500.1379model_form_blend
predicted_3B0.00000.00400.0014model_form_blend
predicted_AB2.50002.84502.6196model_form_blend
predicted_AVG0.30600.27010.2936model_form_blend
predicted_BB0.20000.30300.2357model_form_blend
predicted_H0.53000.76900.6129model_form_blend
predicted_HBP-0.08400.0840form_only
predicted_HR0.10000.15300.1184model_form_blend
predicted_OBP0.34300.35700.3479model_form_blend
predicted_R0.55000.45800.5181model_form_blend
predicted_RBI0.37000.55100.4328model_form_blend
predicted_SLG0.44800.47520.4574model_form_blend
predicted_SO0.80000.83400.8118model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date31
Season rows before report date31
Report year2026
Profile rows used21
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H2
2B0
3B0
HR1
R1
RBI2
BB0
SO1
SF0
HBP0
season_avg0.3

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB0
Hitting_battingOrder7
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedCF
gameID20260617_LAA@ARI
game_typefull
mlbID642350
playerID642350
playerNameJose Siri
posLF
startedTrue
startingPositionCF
teamLAA
teamID13
game_date2026-06-17
sl_k_percent27.6
sl_bb_percent8.6
sl_woba0.397
sl_xwoba0.366
sl_xba0.267
sl_xslg0.499
sl_sweet_spot_percent41.7
sl_barrel_batted_rate17.1
sl_hard_hit_percent42.9
sl_exit_velocity_avg87.4
sl_launch_angle_avg20.4
sl_whiff_percent36.1
sl_swing_percent56.5
Ryan Johnson (696270) · PITCHER · Starter · Team LAA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 4
All-history rows before 20260618: 4

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB1.7501.000-1.750-1.000
predicted_ER5.0005.0005.000Pitching_ER3.5005.0001.5000.000
predicted_H10.00010.00010.000Pitching_H3.7504.0006.2506.000
predicted_IP3.0003.0003.000Pitching_InningsPitched2.0252.0000.9751.000
predicted_SO4.0004.0004.000Pitching_SO1.2500.0002.7504.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 4.0000 -> 3.0000 (deboost -1.0000, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2starter_usage_guardrail10101-predicted_IP: 4.0000 -> 3.0000 (deboost -1.0000, worse)Starter workload capped by recent innings, season ERA/WHIP, and team-form context.
3current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "696270",
  "player_name": "Ryan Johnson",
  "position": "Starter",
  "team": "LAA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 5.0,
        "predicted_H": 10.0,
        "predicted_HR": 0.0,
        "predicted_IP": 4.0,
        "predicted_SO": 4.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "starter_usage_guardrail",
      "description": "Starter workload capped by recent innings, season ERA/WHIP, and team-form context.",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 5.0,
        "predicted_H": 10.0,
        "predicted_HR": 0.0,
        "predicted_IP": 3.0,
        "predicted_SO": 4.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 10.0,
          "after": 10.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 3,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 5.0,
        "predicted_H": 10.0,
        "predicted_HR": 0.0,
        "predicted_IP": 3.0,
        "predicted_R": 5.0,
        "predicted_SO": 4.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 10.0,
          "after": 10.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 5.0,
        "after": 5.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 10.0,
        "after": 10.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 4.0,
        "after": 3.0,
        "delta": -1.0,
        "percent_delta": -0.25,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 4.0,
        "after": 4.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 4.0,
        "after": 3.0,
        "delta": -1.0,
        "percent_delta": -0.25,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER5.000-
predicted_H10.000-
predicted_HR0.000-
predicted_IP4.000-
predicted_SO4.000-
2. starter_usage_guardrail

Starter workload capped by recent innings, season ERA/WHIP, and team-form context.

MetricValueDelta vs Prev Step
predicted_BB0.0000.000
predicted_ER5.0000.000
predicted_H10.0000.000
predicted_HR0.0000.000
predicted_IP3.000-1.000
predicted_SO4.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 4
Reference playing time: 4.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4548.10014.00015.0007.0005.0003.00015.12002.64001.68001.80000.84000.60000.3600
last_100.3548.10014.00015.0007.0005.0003.00015.12002.64001.68001.80000.84000.60000.3600
season0.2048.10014.00015.0007.0005.0003.00015.12002.64001.68001.80000.84000.60000.3600
Weighted Prediction From Real Data
MetricValue
predicted_BB1.6870
predicted_ER2.7820
predicted_ERA7.1474
predicted_H4.1310
predicted_HR0.6980
predicted_IP3.2000
predicted_SO2.9900
predicted_WHIP1.6612
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00001.68700.5611model_form_blend
predicted_ER5.00002.78204.2623model_form_blend
predicted_ERA-7.14747.1474form_only
predicted_H10.00004.13108.0481model_form_blend
predicted_HR0.00000.69800.2321model_form_blend
predicted_IP4.00003.20004.0000model_form_blend
predicted_SO4.00002.99003.6641model_form_blend
predicted_WHIP-1.66121.6612form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date4
Season rows before report date4
Report year2026
Profile rows used4
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP3.0
H10
R5
ER5
BB0
SO4
HR0
BF19
Pitches68

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced11
Pitching_ER5
Pitching_ERA15.12
Pitching_Flyouts2
Pitching_Groundouts3
Pitching_H4
Pitching_HBP0
Pitching_HR2
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched2.0
Pitching_Pitches34
Pitching_R5
Pitching_SO0
Pitching_Strikes22
Pitching_Wild Pitch0
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260519_OAK@LAA
game_typefull
mlbID696270
playerID696270
playerNameRyan Johnson
posP
startedFalse
startingPositionP
teamLAA
teamID13
game_date2026-05-19
game_pk824033.0
sl_k_percent10.6
sl_bb_percent14.9
sl_woba0.487
sl_xwoba0.386
sl_sweet_spot_percent31.4
sl_barrel_batted_rate8.6
sl_hard_hit_percent42.9
sl_whiff_percent23.1
sl_swing_percent53.5
sv_pitch_count34.0
sv_outs_recorded_est6.0
sv_release_speed88.44411764705882
sv_release_spin_rate2419.735294117647
sv_effective_speed87.87941176470588
sv_launch_speed89.18571428571428
sv_launch_angle22.0
sv_woba_value6.85
sv_woba_denom11.0
sv_delta_run_exp4.072
sv_delta_home_win_exp-0.037
sl_avg_best_speed79.932280556
sl_avg_hyper_speed95.073927429
Chase Silseth (681217) · PITCHER · Middle Reliever · Team LAA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 32
All-history rows before 20260618: 32

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB0.4690.0000.5311.000
predicted_ER0.0000.0000.000Pitching_ER0.1560.000-0.1560.000
predicted_H0.0000.0000.000Pitching_H0.6561.000-0.656-1.000
predicted_IP1.2001.2001.200Pitching_InningsPitched0.6631.0000.5370.200
predicted_SO2.0002.0002.000Pitching_SO0.9062.0001.0940.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_IP: 1.0000 -> 1.2000 (boost 0.2000, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final11010predicted_IP: 1.0000 -> 1.2000 (boost 0.2000, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "681217",
  "player_name": "Chase Silseth",
  "position": "Middle Reliever",
  "team": "LAA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.2,
        "predicted_R": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.2,
          "delta": 0.2,
          "percent_delta": 0.2,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.2,
          "delta": 0.2,
          "percent_delta": 0.2,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.2,
        "delta": 0.2,
        "percent_delta": 0.2,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.2,
        "delta": 0.2,
        "percent_delta": 0.2,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO2.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 32
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.2001.0005.0001.0008.0001.0001.92861.28570.21431.07140.21431.71430.2143
last_100.35109.1001.0007.0002.00013.0001.0000.96430.96430.10710.75000.21431.39290.1071
season0.203226.1005.00021.00015.00029.0002.0001.70891.36710.18990.79750.56961.10130.0760
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3120
predicted_ER0.3210
predicted_ERA2.9945
predicted_H0.9060
predicted_HR0.1430
predicted_IP1.0000
predicted_SO1.1730
predicted_WHIP1.2617
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00000.31200.6949model_form_blend
predicted_ER0.00000.32100.1424model_form_blend
predicted_ERA-2.99452.9945form_only
predicted_H0.00000.90600.4018model_form_blend
predicted_HR0.00000.14300.0634model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO2.00001.17301.6332model_form_blend
predicted_WHIP-1.26171.2617form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date32
Season rows before report date32
Report year2026
Profile rows used32
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.2
H0
R0
ER0
BB1
SO2
HR0
BF6
Pitches9

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER0
Pitching_ERA1.71
Pitching_Flyouts0
Pitching_Groundouts1
Pitching_H1
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches18
Pitching_R0
Pitching_SO2
Pitching_Strikes12
Pitching_Wild Pitch0
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260616_LAA@ARI
game_typefull
mlbID681217
playerID681217
playerNameChase Silseth
posP
startedFalse
startingPositionP
teamLAA
teamID13
game_date2026-06-16
sl_k_percent25.4
sl_bb_percent13.2
sl_woba0.302
sl_xwoba0.298
sl_sweet_spot_percent39.1
sl_barrel_batted_rate8.7
sl_hard_hit_percent30.4
sl_whiff_percent34.1
sl_swing_percent46.4
sl_avg_best_speed75.058831176
sl_avg_hyper_speed93.166081765
Kirby Yates (489446) · PITCHER · Middle Reliever · Team LAA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 15
All-history rows before 20260618: 15

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB0.4001.0000.6000.000
predicted_ER2.0002.0002.000Pitching_ER0.4000.0001.6002.000
predicted_H1.0001.0001.000Pitching_H0.6000.0000.4001.000
predicted_IP1.1001.1001.100Pitching_InningsPitched0.8271.0000.2730.100
predicted_SO2.0002.0002.000Pitching_SO1.1331.0000.8671.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final11010predicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "489446",
  "player_name": "Kirby Yates",
  "position": "Middle Reliever",
  "team": "LAA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 2.0,
        "predicted_H": 1.0,
        "predicted_HR": 1.0,
        "predicted_IP": 1.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 2.0,
        "predicted_H": 1.0,
        "predicted_HR": 1.0,
        "predicted_IP": 1.1,
        "predicted_R": 2.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER2.000-
predicted_H1.000-
predicted_HR1.000-
predicted_IP1.000-
predicted_SO2.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 14
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.0001.0002.0002.0007.0000.0001.80000.80000.20000.40000.40001.40000.0000
last_100.35109.2003.0005.0005.00011.0001.0002.79311.03450.31030.51720.51721.13790.1035
season0.201413.1005.0008.0006.00017.0001.0003.37501.05000.37500.60000.45001.27500.0750
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3940
predicted_ER0.4220
predicted_ERA3.8000
predicted_H0.8030
predicted_HR0.1130
predicted_IP1.0000
predicted_SO1.0570
predicted_WHIP1.1969
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00000.39400.7735model_form_blend
predicted_ER2.00000.42201.4102model_form_blend
predicted_ERA-3.80003.8000form_only
predicted_H1.00000.80300.9264model_form_blend
predicted_HR1.00000.11300.6685model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO2.00001.05701.6475model_form_blend
predicted_WHIP-1.19691.1969form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date15
Season rows before report date15
Report year2026
Profile rows used14
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.1
H1
R2
ER2
BB1
SO2
HR1
BF6
Pitches24

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER0
Pitching_ERA4.05
Pitching_Flyouts1
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches16
Pitching_R0
Pitching_SO1
Pitching_Strikes8
Pitching_Wild Pitch0
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260616_LAA@ARI
game_typefull
mlbID489446
playerID489446
playerNameKirby Yates
posP
startedFalse
startingPositionP
teamLAA
teamID13
game_date2026-06-16
sl_k_percent29.8
sl_bb_percent10.5
sl_woba0.288
sl_xwoba0.314
sl_sweet_spot_percent42.4
sl_barrel_batted_rate12.1
sl_hard_hit_percent60.6
sl_whiff_percent30.1
sl_swing_percent49.3
sl_avg_best_speed84.327627059
sl_avg_hyper_speed97.211354545
Sam Bachman (696147) · PITCHER · Middle Reliever · Team LAA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 26
All-history rows before 20260618: 26

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.6542.000-0.654-2.000
predicted_ER0.0000.0000.000Pitching_ER0.4625.000-0.462-5.000
predicted_H0.0000.0000.000Pitching_H0.8854.000-0.885-4.000
predicted_IP1.0001.0001.000Pitching_InningsPitched1.1041.000-0.1040.000
predicted_SO1.0001.0001.000Pitching_SO1.3461.000-0.3460.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "696147",
  "player_name": "Sam Bachman",
  "position": "Middle Reliever",
  "team": "LAA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 26
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.1005.0006.0003.0006.0002.00010.38462.07691.15391.38460.69231.38460.4615
last_100.351010.1005.00011.0007.00011.0002.0004.35481.74190.48391.06450.67741.06450.1935
season0.202632.20012.00023.00017.00035.0004.0003.30611.22450.36740.70410.52041.07140.1225
Weighted Prediction From Real Data
MetricValue
predicted_BB0.5470
predicted_ER0.6730
predicted_ERA5.8354
predicted_H1.1060
predicted_HR0.2420
predicted_IP1.0000
predicted_SO1.1330
predicted_WHIP1.5924
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.54700.2549model_form_blend
predicted_ER0.00000.67300.3137model_form_blend
predicted_ERA-5.83545.8354form_only
predicted_H0.00001.10600.5155model_form_blend
predicted_HR0.00000.24200.1128model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO1.00001.13301.0620model_form_blend
predicted_WHIP-1.59241.5924form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date26
Season rows before report date26
Report year2026
Profile rows used26
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB0
SO1
HR0
BF3
Pitches18

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB2
Pitching_Balk0
Pitching_Batters Faced9
Pitching_ER5
Pitching_ERA3.31
Pitching_Flyouts0
Pitching_Groundouts2
Pitching_H4
Pitching_HBP0
Pitching_HR2
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches31
Pitching_R5
Pitching_SO1
Pitching_Strikes18
Pitching_Wild Pitch0
Pitching_decisionL
Pitching_pitchingOrder5
allPositionsPlayedP
gameID20260614_TB@LAA
game_typefull
mlbID696147
playerID696147
playerNameSam Bachman
posP
startedFalse
startingPositionP
teamLAA
teamID13
game_date2026-06-14
sl_k_percent25.7
sl_bb_percent12.5
sl_woba0.3
sl_xwoba0.282
sl_sweet_spot_percent30.5
sl_barrel_batted_rate5.0
sl_hard_hit_percent32.9
sl_whiff_percent35.0
sl_swing_percent43.6
sl_avg_best_speed75.720165
sl_avg_hyper_speed93.025325823
Ryan Zeferjahn (666171) · PITCHER · Middle Reliever · Team LAA
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 28
All-history rows before 20260618: 28

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.8930.000-0.8930.000
predicted_ER0.0000.0000.000Pitching_ER0.6430.000-0.6430.000
predicted_H0.0000.0000.000Pitching_H0.7140.000-0.7140.000
predicted_IP1.0001.0001.000Pitching_InningsPitched1.0791.000-0.0790.000
predicted_SO0.0000.0000.000Pitching_SO1.5001.000-1.500-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_IP: 0.1000 -> 1.0000 (boost 0.9000, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final11010predicted_IP: 0.1000 -> 1.0000 (boost 0.9000, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "666171",
  "player_name": "Ryan Zeferjahn",
  "position": "Middle Reliever",
  "team": "LAA",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.1,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 0.1,
          "after": 1.0,
          "delta": 0.9,
          "percent_delta": 9.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_IP",
          "before": 0.1,
          "after": 1.0,
          "delta": 0.9,
          "percent_delta": 9.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 0.1,
        "after": 1.0,
        "delta": 0.9,
        "percent_delta": 9.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_IP",
        "before": 0.1,
        "after": 1.0,
        "delta": 0.9,
        "percent_delta": 9.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP0.100-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 28
Reference playing time: 0.100
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.1000.0000.0006.00010.0000.0000.00001.12500.00000.00001.12501.87500.0000
last_100.35109.2006.0006.00010.00013.0003.0005.58621.65520.62070.62071.03451.34480.3103
season0.202833.00018.00020.00025.00042.0003.0004.90911.36360.54540.60610.75761.27270.0909
Weighted Prediction From Real Data
MetricValue
predicted_BB0.5510
predicted_ER0.3010
predicted_ERA3.6170
predicted_H0.4600
predicted_HR0.1010
predicted_IP0.2000
predicted_SO0.9710
predicted_WHIP1.3492
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.55100.2574model_form_blend
predicted_ER0.00000.30100.1406model_form_blend
predicted_ERA-3.61703.6170form_only
predicted_H0.00000.46000.2149model_form_blend
predicted_HR0.00000.10100.0472model_form_blend
predicted_IP0.10000.20000.1000model_form_blend
predicted_SO0.00000.97100.4536model_form_blend
predicted_WHIP-1.34921.3492form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date28
Season rows before report date28
Report year2026
Profile rows used28
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB0
SO0
HR0
BF3
Pitches20

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA4.91
Pitching_Flyouts0
Pitching_Groundouts1
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches10
Pitching_R0
Pitching_SO1
Pitching_Strikes5
Pitching_Wild Pitch0
Pitching_pitchingOrder6
allPositionsPlayedP
gameID20260614_TB@LAA
game_typefull
mlbID666171
playerID666171
playerNameRyan Zeferjahn
posP
startedFalse
startingPositionP
teamLAA
teamID13
game_date2026-06-14
sl_k_percent28.2
sl_bb_percent16.1
sl_woba0.297
sl_xwoba0.302
sl_sweet_spot_percent28.9
sl_barrel_batted_rate5.3
sl_hard_hit_percent36.8
sl_whiff_percent30.5
sl_swing_percent38.7
sl_avg_best_speed79.757111053
sl_avg_hyper_speed93.407026133

Home Team: OAK

Home Pitcher Deep Analysis

FieldValue
PitcherGage Jump
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score0.1870
ESPN Rank144
Movement AvailableTrue
Primary Pitch-
Movement Score0.0978
Avg Velo91.4761
Avg Spin2286.4318
HB Inches0
IVB Inches0
Release Extension0
Pre IP5.2000
Pre ER2
Pre H2
Pre BB2
Pre SO3
Season ERA3.0857
Season WHIP1.1143
Role Avg IP5.8330
Recent Avg IP5.8330
Last Start IP5
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "OAK",
    "games": 79,
    "wins": 38,
    "losses": 41,
    "win_pct": 0.481,
    "runs_scored": 370.0,
    "runs_allowed": 419.0,
    "run_differential": -49.0,
    "run_differential_per_game": -0.6203,
    "avg_runs_scored": 4.6835,
    "avg_runs_allowed": 5.3038,
    "offense_index": 1.0382,
    "defense_index": 0.8505,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 7.2,
      "avg_runs_allowed": 7.5,
      "run_differential": -3.0
    },
    "available": true,
    "quality_score": -0.0568
  },
  "opponent": {
    "team": "LAA",
    "games": 82,
    "wins": 35,
    "losses": 47,
    "win_pct": 0.4268,
    "runs_scored": 368.0,
    "runs_allowed": 406.0,
    "run_differential": -38.0,
    "run_differential_per_game": -0.4634,
    "avg_runs_scored": 4.4878,
    "avg_runs_allowed": 4.9512,
    "offense_index": 0.9948,
    "defense_index": 0.9111,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.6,
      "avg_runs_allowed": 3.6,
      "run_differential": 20.0
    },
    "available": true,
    "quality_score": -0.0837
  },
  "edges": {
    "quality_edge": 0.0269,
    "offense_edge": 0.0382,
    "opponent_offense_edge": -0.0052,
    "defense_strength": -0.1495,
    "opponent_defense_weakness": 0.0889,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 0.9968,
    "run_prevention": 1.0128,
    "strikeout": 1.0012
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "695611",
    "profile": {
      "available": true,
      "pitcher_id": "695611",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 25.0,
        "k_percent": 20.2,
        "bb_percent": 6.4,
        "woba": 0.258,
        "xwoba": 0.285,
        "sweet_spot_percent": 31.3,
        "barrel_batted_rate": 3.0,
        "hard_hit_percent": 29.9,
        "avg_best_speed": 77.1636,
        "avg_hyper_speed": 93.5788,
        "whiff_percent": 24.2,
        "swing_percent": 52.9
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.9044,
        "command_and_miss": -0.0829,
        "regression_edge": -0.7714,
        "xwoba_edge": 0.8571,
        "barrel_edge": 0.9556,
        "hard_hit_edge": 1.2,
        "whiff_edge": -0.2143,
        "bb_edge": 0.7,
        "pitch_design_score": 0.0978
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "695611",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 88,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 88,
          "pitch_usage": 0.0,
          "release_speed": 91.47613636363636,
          "release_spin_rate": 2286.431818181818,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 88,
            "pitch_usage": 0.0,
            "release_speed": 91.47613636363636,
            "release_spin_rate": 2286.431818181818,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 91.4761,
          "release_spin_rate": 2286.4318,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": 0.0978,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": 0.6989,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.187,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9841,
      "strikeout_factor": 0.9902,
      "walk_factor": 0.9748,
      "homer_factor": 0.9324,
      "woba_minus_xwoba": -0.027,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "695611",
        "espn_id": 5023852,
        "player_name": "Gage Jump",
        "team": "ATH",
        "role": "pitcher",
        "espn_rank": 144,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 144,
          "gp_value": 4.0,
          "gp_rank": 512,
          "gs_value": 4.0,
          "gs_rank": 175,
          "qs_value": 2.0,
          "qs_rank": 109,
          "era_value": 3.0857,
          "era_rank": null,
          "w_value": 2.0,
          "w_rank": 180,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 23.1,
          "ip_rank": 341,
          "h_value": 20.0,
          "h_rank": 330,
          "er_value": 8.0,
          "er_rank": 396,
          "hr_value": 0.0,
          "hr_rank": 578,
          "bb_value": 6.0,
          "bb_rank": 436,
          "k_value": 19.0,
          "k_rank": 363,
          "k_per_9_value": 7.328572,
          "k_per_9_rank": 28,
          "whip_value": 1.1142,
          "whip_rank": null,
          "war_value": 0.73,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 2.0,
        "factor": 0.9928,
        "adjusted": 2
      },
      "predicted_H": {
        "original": 5.0,
        "factor": 0.9928,
        "adjusted": 5
      },
      "predicted_BB": {
        "original": 1.0,
        "factor": 0.9887,
        "adjusted": 1
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9696,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 5.0,
        "factor": 0.9956,
        "adjusted": 5
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "insufficient_data"
  },
  "pitching": {
    "IP": 23.1,
    "ER": 8,
    "H": 20,
    "BB": 6,
    "SO": 19,
    "HR": 0,
    "ERA": 3.085714285714286,
    "WHIP": 1.1142857142857143,
    "K9": 7.328571428571429,
    "HR9": 0.0,
    "games_pitched": 4,
    "quality_starts": 2,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 4,
    "error_prone": false
  },
  "games_count": 4,
  "latest_game_date": "2026-06-12T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "695611",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 88,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 88,
    "pitch_usage": 0.0,
    "release_speed": 91.47613636363636,
    "release_spin_rate": 2286.431818181818,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 88,
      "pitch_usage": 0.0,
      "release_speed": 91.47613636363636,
      "release_spin_rate": 2286.431818181818,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 91.4761,
    "release_spin_rate": 2286.4318,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": 0.0978,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": 0.6989,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 1.0
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4444,
    "prior_weight": 0.5556
  },
  "role": "pitcher",
  "player_id": "695611",
  "report_date": "20260618_L",
  "season_year": 2026,
  "rows_used": 4,
  "reference_playing_time": 5.667,
  "windows": {
    "last_5": {
      "games": 4,
      "totals": {
        "IP": 23.1,
        "ER": 8.0,
        "R": 8.0,
        "H": 20.0,
        "BB": 6.0,
        "SO": 19.0,
        "HR": 0.0,
        "BF": 94.0,
        "Pitches": 344.0
      },
      "per_game": {
        "IP": 6.0,
        "ER": 2.0,
        "R": 2.0,
        "H": 5.0,
        "BB": 1.5,
        "SO": 4.75,
        "HR": 0.0,
        "BF": 23.5,
        "Pitches": 86.0
      },
      "rates": {
        "ERA": 3.0857,
        "WHIP": 1.1143,
        "ER_per_IP": 0.34286,
        "H_per_IP": 0.85714,
        "BB_per_IP": 0.25714,
        "SO_per_IP": 0.81429,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 4,
      "totals": {
        "IP": 23.1,
        "ER": 8.0,
        "R": 8.0,
        "H": 20.0,
        "BB": 6.0,
        "SO": 19.0,
        "HR": 0.0,
        "BF": 94.0,
        "Pitches": 344.0
      },
      "per_game": {
        "IP": 6.0,
        "ER": 2.0,
        "R": 2.0,
        "H": 5.0,
        "BB": 1.5,
        "SO": 4.75,
        "HR": 0.0,
        "BF": 23.5,
        "Pitches": 86.0
      },
      "rates": {
        "ERA": 3.0857,
        "WHIP": 1.1143,
        "ER_per_IP": 0.34286,
        "H_per_IP": 0.85714,
        "BB_per_IP": 0.25714,
        "SO_per_IP": 0.81429,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 4,
      "totals": {
        "IP": 23.1,
        "ER": 8.0,
        "R": 8.0,
        "H": 20.0,
        "BB": 6.0,
        "SO": 19.0,
        "HR": 0.0,
        "BF": 94.0,
        "Pitches": 344.0
      },
      "per_game": {
        "IP": 6.0,
        "ER": 2.0,
        "R": 2.0,
        "H": 5.0,
        "BB": 1.5,
        "SO": 4.75,
        "HR": 0.0,
        "BF": 23.5,
        "Pitches": 86.0
      },
      "rates": {
        "ERA": 3.0857,
        "WHIP": 1.1143,
        "ER_per_IP": 0.34286,
        "H_per_IP": 0.85714,
        "BB_per_IP": 0.25714,
        "SO_per_IP": 0.81429,
        "HR_per_IP": 0.0
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 5.2,
    "predicted_ER": 2.504,
    "predicted_H": 5.362,
    "predicted_BB": 1.838,
    "predicted_SO": 5.133,
    "predicted_HR": 0.471,
    "predicted_ERA": 3.8761,
    "predicted_WHIP": 1.2381
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5847,
  "form_weight": 0.4153,
  "form_reliability": 0.4444,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4444,
    "prior_weight": 0.5556
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 5.2,
      "form": 5.2,
      "final": 5.2,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 2.0,
      "form": 2.504,
      "final": 2.2093,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 2.0,
      "form": 5.362,
      "final": 3.3961,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 2.0,
      "form": 1.838,
      "final": 1.9327,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 3.0,
      "form": 5.133,
      "final": 3.8857,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 1.0,
      "form": 0.471,
      "final": 0.7803,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.8761,
      "final": 3.8761,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2381,
      "final": 1.2381,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherElvis Alvarado
RoleMiddle Reliever
Projection Source-
Savant Quality Score-0.1268
ESPN Rank512
Movement AvailableTrue
Primary Pitch-
Movement Score0.2800
Avg Velo96.2014
Avg Spin2328.6297
HB Inches0
IVB Inches0
Release Extension0
Pre IP1.1000
Pre ER0
Pre H2
Pre BB0
Pre SO0
Season ERA5.6250
Season WHIP1.2500
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "OAK",
    "games": 79,
    "wins": 38,
    "losses": 41,
    "win_pct": 0.481,
    "runs_scored": 370.0,
    "runs_allowed": 419.0,
    "run_differential": -49.0,
    "run_differential_per_game": -0.6203,
    "avg_runs_scored": 4.6835,
    "avg_runs_allowed": 5.3038,
    "offense_index": 1.0382,
    "defense_index": 0.8505,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 7.2,
      "avg_runs_allowed": 7.5,
      "run_differential": -3.0
    },
    "available": true,
    "quality_score": -0.0568
  },
  "opponent": {
    "team": "LAA",
    "games": 82,
    "wins": 35,
    "losses": 47,
    "win_pct": 0.4268,
    "runs_scored": 368.0,
    "runs_allowed": 406.0,
    "run_differential": -38.0,
    "run_differential_per_game": -0.4634,
    "avg_runs_scored": 4.4878,
    "avg_runs_allowed": 4.9512,
    "offense_index": 0.9948,
    "defense_index": 0.9111,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.6,
      "avg_runs_allowed": 3.6,
      "run_differential": 20.0
    },
    "available": true,
    "quality_score": -0.0837
  },
  "edges": {
    "quality_edge": 0.0269,
    "offense_edge": 0.0382,
    "opponent_offense_edge": -0.0052,
    "defense_strength": -0.1495,
    "opponent_defense_weakness": 0.0889,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 0.9968,
    "run_prevention": 1.0128,
    "strikeout": 1.0012
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "665660",
    "profile": {
      "available": true,
      "pitcher_id": "665660",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 44.0,
        "k_percent": 30.3,
        "bb_percent": 10.6,
        "woba": 0.319,
        "xwoba": 0.33,
        "sweet_spot_percent": 35.9,
        "barrel_batted_rate": 20.5,
        "hard_hit_percent": 48.7,
        "avg_best_speed": 80.2056,
        "avg_hyper_speed": 94.7536,
        "whiff_percent": 33.1,
        "swing_percent": 53.2
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.8591,
        "command_and_miss": 0.8014,
        "regression_edge": -0.3143,
        "xwoba_edge": -0.4286,
        "barrel_edge": -2.5,
        "hard_hit_edge": -1.4857,
        "whiff_edge": 1.0571,
        "bb_edge": -0.35,
        "pitch_design_score": 0.28
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "665660",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 45,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 45,
          "pitch_usage": 0.0,
          "release_speed": 96.201418997669,
          "release_spin_rate": 2328.629715456957,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 45,
            "pitch_usage": 0.0,
            "release_speed": 96.201418997669,
            "release_spin_rate": 2328.629715456957,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 96.2014,
          "release_spin_rate": 2328.6297,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": 0.28,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": 2.0,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": -0.1268,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0108,
      "strikeout_factor": 1.0391,
      "walk_factor": 1.0126,
      "homer_factor": 1.1225,
      "woba_minus_xwoba": -0.011,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "665660",
        "espn_id": 42211,
        "player_name": "Elvis Alvarado",
        "team": "ATH",
        "role": "pitcher",
        "espn_rank": 512,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 512,
          "gp_value": 15.0,
          "gp_rank": 228,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 5.625,
          "era_rank": null,
          "w_value": 2.0,
          "w_rank": 180,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 2.0,
          "sv_rank": 56,
          "hld_value": 4.0,
          "hld_rank": 121,
          "ip_value": 16.0,
          "ip_rank": 429,
          "h_value": 13.0,
          "h_rank": 439,
          "er_value": 10.0,
          "er_rank": 324,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 7.0,
          "bb_rank": 394,
          "k_value": 20.0,
          "k_rank": 352,
          "k_per_9_value": 11.25,
          "k_per_9_rank": 22,
          "whip_value": 1.25,
          "whip_rank": null,
          "war_value": -0.13,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 1.0,
        "factor": 1.0049,
        "adjusted": 1
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 1.0049,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0057,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0551,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 3.0,
        "factor": 1.0176,
        "adjusted": 3
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.2,
    "ER": 5,
    "H": 6,
    "BB": 3,
    "SO": 16,
    "HR": 2,
    "ERA": 4.21875,
    "WHIP": 0.84375,
    "K9": 13.5,
    "HR9": 1.6875,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "665660",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 45,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 45,
    "pitch_usage": 0.0,
    "release_speed": 96.201418997669,
    "release_spin_rate": 2328.629715456957,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 45,
      "pitch_usage": 0.0,
      "release_speed": 96.201418997669,
      "release_spin_rate": 2328.629715456957,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 96.2014,
    "release_spin_rate": 2328.6297,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": 0.28,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": 2.0,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 3.177,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.3886,
    "prior_weight": 0.6114
  },
  "role": "pitcher",
  "player_id": "665660",
  "report_date": "20260618_L",
  "season_year": 2026,
  "rows_used": 15,
  "reference_playing_time": 1.333,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 6.1,
        "ER": 1.0,
        "R": 1.0,
        "H": 2.0,
        "BB": 0.0,
        "SO": 11.0,
        "HR": 1.0,
        "BF": 22.0,
        "Pitches": 113.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.4,
        "BB": 0.0,
        "SO": 2.2,
        "HR": 0.2,
        "BF": 4.4,
        "Pitches": 22.6
      },
      "rates": {
        "ERA": 1.4211,
        "WHIP": 0.3158,
        "ER_per_IP": 0.15789,
        "H_per_IP": 0.31579,
        "BB_per_IP": 0.0,
        "SO_per_IP": 1.73684,
        "HR_per_IP": 0.15789
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.2,
        "ER": 5.0,
        "R": 5.0,
        "H": 6.0,
        "BB": 3.0,
        "SO": 16.0,
        "HR": 2.0,
        "BF": 41.0,
        "Pitches": 196.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.5,
        "R": 0.5,
        "H": 0.6,
        "BB": 0.3,
        "SO": 1.6,
        "HR": 0.2,
        "BF": 4.1,
        "Pitches": 19.6
      },
      "rates": {
        "ERA": 4.2188,
        "WHIP": 0.8438,
        "ER_per_IP": 0.46875,
        "H_per_IP": 0.5625,
        "BB_per_IP": 0.28125,
        "SO_per_IP": 1.5,
        "HR_per_IP": 0.1875
      }
    },
    "season": {
      "games": 15,
      "totals": {
        "IP": 16.0,
        "ER": 10.0,
        "R": 10.0,
        "H": 13.0,
        "BB": 7.0,
        "SO": 20.0,
        "HR": 2.0,
        "BF": 66.0,
        "Pitches": 295.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.6667,
        "R": 0.6667,
        "H": 0.8667,
        "BB": 0.4667,
        "SO": 1.3333,
        "HR": 0.1333,
        "BF": 4.4,
        "Pitches": 19.6667
      },
      "rates": {
        "ERA": 5.625,
        "WHIP": 1.25,
        "ER_per_IP": 0.625,
        "H_per_IP": 0.8125,
        "BB_per_IP": 0.4375,
        "SO_per_IP": 1.25,
        "HR_per_IP": 0.125
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.1,
    "predicted_ER": 0.563,
    "predicted_H": 0.998,
    "predicted_BB": 0.371,
    "predicted_SO": 1.487,
    "predicted_HR": 0.192,
    "predicted_ERA": 4.0158,
    "predicted_WHIP": 1.0847
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.6083,
  "form_weight": 0.3917,
  "form_reliability": 0.3886,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 3.177,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.3886,
    "prior_weight": 0.6114
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.1,
      "form": 1.1,
      "final": 1.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.563,
      "final": 0.2205,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 2.0,
      "form": 0.998,
      "final": 1.6075,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.371,
      "final": 0.1453,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 1.487,
      "final": 0.5824,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.192,
      "final": 0.0752,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.0158,
      "final": 4.0158,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.0847,
      "final": 1.0847,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherHogan Harris
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.2384
ESPN Rank74
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H0
Pre BB1
Pre SO2
Season ERA3.1154
Season WHIP1.5288
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "OAK",
    "games": 79,
    "wins": 38,
    "losses": 41,
    "win_pct": 0.481,
    "runs_scored": 370.0,
    "runs_allowed": 419.0,
    "run_differential": -49.0,
    "run_differential_per_game": -0.6203,
    "avg_runs_scored": 4.6835,
    "avg_runs_allowed": 5.3038,
    "offense_index": 1.0382,
    "defense_index": 0.8505,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 7.2,
      "avg_runs_allowed": 7.5,
      "run_differential": -3.0
    },
    "available": true,
    "quality_score": -0.0568
  },
  "opponent": {
    "team": "LAA",
    "games": 82,
    "wins": 35,
    "losses": 47,
    "win_pct": 0.4268,
    "runs_scored": 368.0,
    "runs_allowed": 406.0,
    "run_differential": -38.0,
    "run_differential_per_game": -0.4634,
    "avg_runs_scored": 4.4878,
    "avg_runs_allowed": 4.9512,
    "offense_index": 0.9948,
    "defense_index": 0.9111,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.6,
      "avg_runs_allowed": 3.6,
      "run_differential": 20.0
    },
    "available": true,
    "quality_score": -0.0837
  },
  "edges": {
    "quality_edge": 0.0269,
    "offense_edge": 0.0382,
    "opponent_offense_edge": -0.0052,
    "defense_strength": -0.1495,
    "opponent_defense_weakness": 0.0889,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 0.9968,
    "run_prevention": 1.0128,
    "strikeout": 1.0012
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "663687",
    "profile": {
      "available": true,
      "pitcher_id": "663687",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 114.0,
        "k_percent": 25.5,
        "bb_percent": 15.3,
        "woba": 0.311,
        "xwoba": 0.284,
        "sweet_spot_percent": 26.4,
        "barrel_batted_rate": 3.3,
        "hard_hit_percent": 27.5,
        "avg_best_speed": 74.3215,
        "avg_hyper_speed": 92.2916,
        "whiff_percent": 25.4,
        "swing_percent": 42.7
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.8549,
        "command_and_miss": -0.1271,
        "regression_edge": 0.7714,
        "xwoba_edge": 0.8857,
        "barrel_edge": 0.8889,
        "hard_hit_edge": 1.5429,
        "whiff_edge": -0.0429,
        "bb_edge": -1.525,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "663687",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.2384,
      "sample_weight": 0.456,
      "run_prevention_factor": 0.9797,
      "strikeout_factor": 1.007,
      "walk_factor": 1.0556,
      "homer_factor": 0.9273,
      "woba_minus_xwoba": 0.027,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "663687",
        "espn_id": 41364,
        "player_name": "Hogan Harris",
        "team": "ATH",
        "role": "pitcher",
        "espn_rank": 74,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 74,
          "gp_value": 37.0,
          "gp_rank": 3,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 3.1153,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 0.0,
          "l_rank": 430,
          "sv_value": 6.0,
          "sv_rank": 23,
          "hld_value": 10.0,
          "hld_rank": 22,
          "ip_value": 34.2,
          "ip_rank": 192,
          "h_value": 29.0,
          "h_rank": 219,
          "er_value": 12.0,
          "er_rank": 266,
          "hr_value": 3.0,
          "hr_rank": 258,
          "bb_value": 24.0,
          "bb_rank": 68,
          "k_value": 40.0,
          "k_rank": 160,
          "k_per_9_value": 10.384615,
          "k_per_9_rank": 22,
          "whip_value": 1.5288,
          "whip_rank": null,
          "war_value": 1.22,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9907,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9907,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0254,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9668,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0032,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.1,
    "ER": 4,
    "H": 8,
    "BB": 3,
    "SO": 13,
    "HR": 1,
    "ERA": 3.483870967741936,
    "WHIP": 1.0645161290322582,
    "K9": 11.322580645161292,
    "HR9": 0.870967741935484,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "663687",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.884,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5793,
    "prior_weight": 0.4207
  },
  "role": "pitcher",
  "player_id": "663687",
  "report_date": "20260618_L",
  "season_year": 2026,
  "rows_used": 37,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.2,
        "ER": 4.0,
        "R": 4.0,
        "H": 7.0,
        "BB": 2.0,
        "SO": 7.0,
        "HR": 1.0,
        "BF": 24.0,
        "Pitches": 114.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.8,
        "R": 0.8,
        "H": 1.4,
        "BB": 0.4,
        "SO": 1.4,
        "HR": 0.2,
        "BF": 4.8,
        "Pitches": 22.8
      },
      "rates": {
        "ERA": 6.3529,
        "WHIP": 1.5882,
        "ER_per_IP": 0.70588,
        "H_per_IP": 1.23529,
        "BB_per_IP": 0.35294,
        "SO_per_IP": 1.23529,
        "HR_per_IP": 0.17647
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.1,
        "ER": 4.0,
        "R": 4.0,
        "H": 8.0,
        "BB": 3.0,
        "SO": 13.0,
        "HR": 1.0,
        "BF": 40.0,
        "Pitches": 189.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4,
        "R": 0.4,
        "H": 0.8,
        "BB": 0.3,
        "SO": 1.3,
        "HR": 0.1,
        "BF": 4.0,
        "Pitches": 18.9
      },
      "rates": {
        "ERA": 3.4839,
        "WHIP": 1.0645,
        "ER_per_IP": 0.3871,
        "H_per_IP": 0.77419,
        "BB_per_IP": 0.29032,
        "SO_per_IP": 1.25806,
        "HR_per_IP": 0.09677
      }
    },
    "season": {
      "games": 37,
      "totals": {
        "IP": 34.2,
        "ER": 12.0,
        "R": 13.0,
        "H": 29.0,
        "BB": 24.0,
        "SO": 40.0,
        "HR": 3.0,
        "BF": 157.0,
        "Pitches": 665.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3243,
        "R": 0.3514,
        "H": 0.7838,
        "BB": 0.6486,
        "SO": 1.0811,
        "HR": 0.0811,
        "BF": 4.2432,
        "Pitches": 17.973
      },
      "rates": {
        "ERA": 3.1154,
        "WHIP": 1.5288,
        "ER_per_IP": 0.34615,
        "H_per_IP": 0.83654,
        "BB_per_IP": 0.69231,
        "SO_per_IP": 1.15385,
        "HR_per_IP": 0.08654
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.513,
    "predicted_H": 0.986,
    "predicted_BB": 0.384,
    "predicted_SO": 1.105,
    "predicted_HR": 0.137,
    "predicted_ERA": 4.62,
    "predicted_WHIP": 1.3695
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5277,
  "form_weight": 0.4723,
  "form_reliability": 0.5793,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.884,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5793,
    "prior_weight": 0.4207
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.513,
      "final": 0.2423,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.986,
      "final": 0.4656,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 0.384,
      "final": 0.7091,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 2.0,
      "form": 1.105,
      "final": 1.5773,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.137,
      "final": 0.0647,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.62,
      "final": 4.62,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.3695,
      "final": 1.3695,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherMark Leiter Jr.
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.0748
ESPN Rank260
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER2
Pre H2
Pre BB0
Pre SO2
Season ERA4.8539
Season WHIP1.3820
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "OAK",
    "games": 79,
    "wins": 38,
    "losses": 41,
    "win_pct": 0.481,
    "runs_scored": 370.0,
    "runs_allowed": 419.0,
    "run_differential": -49.0,
    "run_differential_per_game": -0.6203,
    "avg_runs_scored": 4.6835,
    "avg_runs_allowed": 5.3038,
    "offense_index": 1.0382,
    "defense_index": 0.8505,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 7.2,
      "avg_runs_allowed": 7.5,
      "run_differential": -3.0
    },
    "available": true,
    "quality_score": -0.0568
  },
  "opponent": {
    "team": "LAA",
    "games": 82,
    "wins": 35,
    "losses": 47,
    "win_pct": 0.4268,
    "runs_scored": 368.0,
    "runs_allowed": 406.0,
    "run_differential": -38.0,
    "run_differential_per_game": -0.4634,
    "avg_runs_scored": 4.4878,
    "avg_runs_allowed": 4.9512,
    "offense_index": 0.9948,
    "defense_index": 0.9111,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.6,
      "avg_runs_allowed": 3.6,
      "run_differential": 20.0
    },
    "available": true,
    "quality_score": -0.0837
  },
  "edges": {
    "quality_edge": 0.0269,
    "offense_edge": 0.0382,
    "opponent_offense_edge": -0.0052,
    "defense_strength": -0.1495,
    "opponent_defense_weakness": 0.0889,
    "recent_win_pct_edge": 0.0
  },
  "player_factors": {
    "ip": 0.9968,
    "run_prevention": 1.0128,
    "strikeout": 1.0012
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "643410",
    "profile": {
      "available": true,
      "pitcher_id": "643410",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 97.0,
        "k_percent": 24.4,
        "bb_percent": 7.9,
        "woba": 0.309,
        "xwoba": 0.318,
        "sweet_spot_percent": 40.0,
        "barrel_batted_rate": 3.5,
        "hard_hit_percent": 30.6,
        "avg_best_speed": 76.1031,
        "avg_hyper_speed": 92.7344,
        "whiff_percent": 27.6,
        "swing_percent": 46.8
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.2119,
        "command_and_miss": 0.2821,
        "regression_edge": -0.2571,
        "xwoba_edge": -0.0857,
        "barrel_edge": 0.8444,
        "hard_hit_edge": 1.1,
        "whiff_edge": 0.2714,
        "bb_edge": 0.325,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "643410",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.0748,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9936,
      "strikeout_factor": 1.0098,
      "walk_factor": 0.9883,
      "homer_factor": 0.951,
      "woba_minus_xwoba": -0.009,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "643410",
        "espn_id": 36202,
        "player_name": "Mark Leiter Jr.",
        "team": "ATH",
        "role": "pitcher",
        "espn_rank": 260,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 260,
          "gp_value": 32.0,
          "gp_rank": 31,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 4.8539,
          "era_rank": null,
          "w_value": 0.0,
          "w_rank": 404,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 4.0,
          "sv_rank": 30,
          "hld_value": 5.0,
          "hld_rank": 87,
          "ip_value": 29.2,
          "ip_rank": 259,
          "h_value": 31.0,
          "h_rank": 204,
          "er_value": 16.0,
          "er_rank": 197,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 10.0,
          "bb_rank": 303,
          "k_value": 31.0,
          "k_rank": 239,
          "k_per_9_value": 9.404494,
          "k_per_9_rank": 24,
          "whip_value": 1.382,
          "whip_rank": null,
          "war_value": 0.23,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9971,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9971,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9947,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9779,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0044,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.0,
    "ER": 1,
    "H": 5,
    "BB": 4,
    "SO": 8,
    "HR": 0,
    "ERA": 1.0,
    "WHIP": 1.0,
    "K9": 8.0,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "643410",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.891,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5409,
    "prior_weight": 0.4591
  },
  "role": "pitcher",
  "player_id": "643410",
  "report_date": "20260618_L",
  "season_year": 2026,
  "rows_used": 32,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.1,
        "ER": 1.0,
        "R": 1.0,
        "H": 3.0,
        "BB": 2.0,
        "SO": 6.0,
        "HR": 0.0,
        "BF": 17.0,
        "Pitches": 77.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.6,
        "BB": 0.4,
        "SO": 1.2,
        "HR": 0.0,
        "BF": 3.4,
        "Pitches": 15.4
      },
      "rates": {
        "ERA": 2.0769,
        "WHIP": 1.1538,
        "ER_per_IP": 0.23077,
        "H_per_IP": 0.69231,
        "BB_per_IP": 0.46154,
        "SO_per_IP": 1.38462,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.0,
        "ER": 1.0,
        "R": 1.0,
        "H": 5.0,
        "BB": 4.0,
        "SO": 8.0,
        "HR": 0.0,
        "BF": 33.0,
        "Pitches": 132.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.1,
        "R": 0.1,
        "H": 0.5,
        "BB": 0.4,
        "SO": 0.8,
        "HR": 0.0,
        "BF": 3.3,
        "Pitches": 13.2
      },
      "rates": {
        "ERA": 1.0,
        "WHIP": 1.0,
        "ER_per_IP": 0.11111,
        "H_per_IP": 0.55556,
        "BB_per_IP": 0.44444,
        "SO_per_IP": 0.88889,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 32,
      "totals": {
        "IP": 29.2,
        "ER": 16.0,
        "R": 16.0,
        "H": 31.0,
        "BB": 10.0,
        "SO": 31.0,
        "HR": 2.0,
        "BF": 127.0,
        "Pitches": 481.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.5,
        "R": 0.5,
        "H": 0.9688,
        "BB": 0.3125,
        "SO": 0.9688,
        "HR": 0.0625,
        "BF": 3.9688,
        "Pitches": 15.0312
      },
      "rates": {
        "ERA": 4.8539,
        "WHIP": 1.382,
        "ER_per_IP": 0.53933,
        "H_per_IP": 1.04494,
        "BB_per_IP": 0.33708,
        "SO_per_IP": 1.04494,
        "HR_per_IP": 0.06742
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.366,
    "predicted_H": 0.834,
    "predicted_BB": 0.4,
    "predicted_SO": 1.049,
    "predicted_HR": 0.074,
    "predicted_ERA": 3.2897,
    "predicted_WHIP": 1.2336
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.544,
  "form_weight": 0.456,
  "form_reliability": 0.5409,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.891,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5409,
    "prior_weight": 0.4591
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 2.0,
      "form": 0.366,
      "final": 1.2548,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 2.0,
      "form": 0.834,
      "final": 1.4683,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.4,
      "final": 0.1824,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 2.0,
      "form": 1.049,
      "final": 1.5663,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 1.0,
      "form": 0.074,
      "final": 0.5777,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.2897,
      "final": 3.2897,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2336,
      "final": 1.2336,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Shea Langeliers (669127) · BATTER · C · Team OAK
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 245
All-history rows before 20260618: 245
System season_avg: 0.2760
Data season_avg (2026 season-to-date): 0.3004
Diff (system - data): -0.0244
System opponent_avg: 0.1330
System season_avg diverges from 2026 season-to-date by -0.0244. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2241.0000.000Hitting_2B0.2330.0000.7671.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.5304.0005.000Hitting_AB4.1713.000-0.1711.000
predicted_AVG0.2350.2500.200Hitting_AVG0.3000.000-0.0500.250
predicted_BB0.3580.0000.000Hitting_BB0.4201.000-0.420-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0040.000-0.0040.000
predicted_H1.0701.0001.000Hitting_H1.2530.000-0.2531.000
predicted_HR0.2200.0000.000Hitting_HR0.2610.000-0.2610.000
predicted_OBP0.3160.2500.200Hitting_OBP0.3680.250-0.1180.000
predicted_R0.7011.0001.000Hitting_R0.7271.0000.2730.000
predicted_RBI0.4801.0001.000Hitting_RBI0.5630.0000.4371.000
predicted_SLG0.4540.5000.200Hitting_SLG0.5440.000-0.0440.500
predicted_SO0.8660.0001.000Hitting_SO0.9020.000-0.9020.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectdeboosted
Changed Metrics10
Boosted Metrics4
Deboosted Metrics6
Better Metrics5
Worse Metrics5
Biggest Boostpredicted_2B: 0.2240 -> 1.0000 (boost 0.7760, better)
Biggest Deboostpredicted_SO: 0.8660 -> 0.0000 (deboost -0.8660, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend21111predicted_AVG: 0.2350 -> 0.2416 (boost 0.0066, better)predicted_AB: 4.5300 -> 4.4079 (deboost -0.1221, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3170 -> 0.3037 (deboost -0.0133, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73425predicted_AB: 4.4079 -> 5.0000 (boost 0.5921, better)predicted_BB: 0.3716 -> 0.0000 (deboost -0.3716, worse)AB rounded to 5 (raw=4.53), rates preserved: AVG=0.238 HR/AB=0.050
5consistency_constraints11010predicted_R: 0.6987 -> 1.0000 (boost 0.3013, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.4504 -> 0.2000 (deboost -0.2504, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference31221predicted_2B: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 5.0000 -> 4.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2000 -> 0.4504 (boost 0.2504, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "669127",
  "player_name": "Shea Langeliers",
  "position": "C",
  "team": "OAK",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.224,
        "predicted_3B": 0.0,
        "predicted_AB": 4.53,
        "predicted_AVG": 0.235,
        "predicted_BB": 0.358,
        "predicted_H": 1.07,
        "predicted_HR": 0.22,
        "predicted_OBP": 0.316,
        "predicted_R": 0.701,
        "predicted_RBI": 0.48,
        "predicted_SLG": 0.454,
        "predicted_SO": 0.866
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2193,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.4079,
        "predicted_AVG": 0.2416,
        "predicted_BB": 0.3707,
        "predicted_H": 1.067,
        "predicted_HBP": 0.037,
        "predicted_HR": 0.2251,
        "predicted_OBP": 0.317,
        "predicted_R": 0.6857,
        "predicted_RBI": 0.4609,
        "predicted_SLG": 0.4589,
        "predicted_SO": 0.8465
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.224,
          "after": 0.2193,
          "delta": -0.0047,
          "percent_delta": -0.021,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.53,
          "after": 4.4079,
          "delta": -0.1221,
          "percent_delta": -0.027,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.235,
          "after": 0.2416,
          "delta": 0.0066,
          "percent_delta": 0.0281,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.358,
          "after": 0.3707,
          "delta": 0.0127,
          "percent_delta": 0.0355,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.07,
          "after": 1.067,
          "delta": -0.003,
          "percent_delta": -0.0028,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.22,
          "after": 0.2251,
          "delta": 0.0051,
          "percent_delta": 0.0232,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.316,
          "after": 0.317,
          "delta": 0.001,
          "percent_delta": 0.0032,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.701,
          "after": 0.6857,
          "delta": -0.0153,
          "percent_delta": -0.0218,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.48,
          "after": 0.4609,
          "delta": -0.0191,
          "percent_delta": -0.0398,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.454,
          "after": 0.4589,
          "delta": 0.0049,
          "percent_delta": 0.0108,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.866,
          "after": 0.8465,
          "delta": -0.0195,
          "percent_delta": -0.0225,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.235,
          "after": 0.2416,
          "delta": 0.0066,
          "percent_delta": 0.0281,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.53,
          "after": 4.4079,
          "delta": -0.1221,
          "percent_delta": -0.027,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 67
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2193,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.4079,
        "predicted_AVG": 0.245,
        "predicted_BB": 0.3716,
        "predicted_H": 1.0798,
        "predicted_HBP": 0.037,
        "predicted_HR": 0.2284,
        "predicted_OBP": 0.3037,
        "predicted_R": 0.6987,
        "predicted_RBI": 0.4696,
        "predicted_SLG": 0.4504,
        "predicted_SO": 0.8446
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2193,
          "after": 0.2193,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.4079,
          "after": 4.4079,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2416,
          "after": 0.245,
          "delta": 0.0034,
          "percent_delta": 0.0141,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3707,
          "after": 0.3716,
          "delta": 0.0009,
          "percent_delta": 0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.067,
          "after": 1.0798,
          "delta": 0.0128,
          "percent_delta": 0.012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.037,
          "after": 0.037,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2251,
          "after": 0.2284,
          "delta": 0.0033,
          "percent_delta": 0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.317,
          "after": 0.3037,
          "delta": -0.0133,
          "percent_delta": -0.042,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.6857,
          "after": 0.6987,
          "delta": 0.013,
          "percent_delta": 0.019,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4609,
          "after": 0.4696,
          "delta": 0.0087,
          "percent_delta": 0.0189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4589,
          "after": 0.4504,
          "delta": -0.0085,
          "percent_delta": -0.0185,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8465,
          "after": 0.8446,
          "delta": -0.0019,
          "percent_delta": -0.0022,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.317,
          "after": 0.3037,
          "delta": -0.0133,
          "percent_delta": -0.042,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 5 (raw=4.53), rates preserved: AVG=0.238 HR/AB=0.050",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2193,
          "after": 0.0,
          "delta": -0.2193,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.4079,
          "after": 5.0,
          "delta": 0.5921,
          "percent_delta": 0.1343,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3716,
          "after": 0.0,
          "delta": -0.3716,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0798,
          "after": 1.0,
          "delta": -0.0798,
          "percent_delta": -0.0739,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.037,
          "after": 0.0,
          "delta": -0.037,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2284,
          "after": 0.0,
          "delta": -0.2284,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4696,
          "after": 1.0,
          "delta": 0.5304,
          "percent_delta": 1.1295,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8446,
          "after": 1.0,
          "delta": 0.1554,
          "percent_delta": 0.184,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 4.4079,
          "after": 5.0,
          "delta": 0.5921,
          "percent_delta": 0.1343,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3716,
          "after": 0.0,
          "delta": -0.3716,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.6987,
          "after": 1.0,
          "delta": 0.3013,
          "percent_delta": 0.4312,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.6987,
          "after": 1.0,
          "delta": 0.3013,
          "percent_delta": 0.4312,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.2,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.2,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.245,
          "after": 0.2,
          "delta": -0.045,
          "percent_delta": -0.1837,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3037,
          "after": 0.2,
          "delta": -0.1037,
          "percent_delta": -0.3415,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4504,
          "after": 0.2,
          "delta": -0.2504,
          "percent_delta": -0.556,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4504,
          "after": 0.2,
          "delta": -0.2504,
          "percent_delta": -0.556,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 4.0,
          "delta": -1.0,
          "percent_delta": -0.2,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 4.0,
          "delta": -1.0,
          "percent_delta": -0.2,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.245,
        "predicted_BB": 0.0,
        "predicted_C": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3037,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4504,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2,
          "after": 0.245,
          "delta": 0.045,
          "percent_delta": 0.2249,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2,
          "after": 0.3037,
          "delta": 0.1037,
          "percent_delta": 0.5183,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2,
          "after": 0.4504,
          "delta": 0.2504,
          "percent_delta": 1.2519,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.2,
          "after": 0.4504,
          "delta": 0.2504,
          "percent_delta": 1.2519,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.224,
        "after": 1.0,
        "delta": 0.776,
        "percent_delta": 3.4643,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.53,
        "after": 4.0,
        "delta": -0.53,
        "percent_delta": -0.117,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.235,
        "after": 0.245,
        "delta": 0.01,
        "percent_delta": 0.0426,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.358,
        "after": 0.0,
        "delta": -0.358,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.07,
        "after": 1.0,
        "delta": -0.07,
        "percent_delta": -0.0654,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.22,
        "after": 0.0,
        "delta": -0.22,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.316,
        "after": 0.3037,
        "delta": -0.0123,
        "percent_delta": -0.0389,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.701,
        "after": 1.0,
        "delta": 0.299,
        "percent_delta": 0.4265,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.48,
        "after": 1.0,
        "delta": 0.52,
        "percent_delta": 1.0833,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.454,
        "after": 0.4504,
        "delta": -0.0036,
        "percent_delta": -0.0079,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.866,
        "after": 0.0,
        "delta": -0.866,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 4,
      "deboosted_metrics": 6,
      "better_metrics": 5,
      "worse_metrics": 5,
      "biggest_boost": {
        "metric": "predicted_2B",
        "before": 0.224,
        "after": 1.0,
        "delta": 0.776,
        "percent_delta": 3.4643,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.866,
        "after": 0.0,
        "delta": -0.866,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "deboosted"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.224-
predicted_3B0.000-
predicted_AB4.530-
predicted_AVG0.235-
predicted_BB0.358-
predicted_H1.070-
predicted_HR0.220-
predicted_OBP0.316-
predicted_R0.701-
predicted_RBI0.480-
predicted_SLG0.454-
predicted_SO0.866-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.219-0.005
predicted_3B0.0000.000
predicted_AB4.408-0.122
predicted_AVG0.2420.007
predicted_BB0.3710.013
predicted_H1.067-0.003
predicted_HBP0.037-
predicted_HR0.2250.005
predicted_OBP0.3170.001
predicted_R0.686-0.015
predicted_RBI0.461-0.019
predicted_SLG0.4590.005
predicted_SO0.847-0.019
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2190.000
predicted_3B0.0000.000
predicted_AB4.4080.000
predicted_AVG0.2450.003
predicted_BB0.3720.001
predicted_H1.0800.013
predicted_HBP0.0370.000
predicted_HR0.2280.003
predicted_OBP0.304-0.013
predicted_R0.6990.013
predicted_RBI0.4700.009
predicted_SLG0.450-0.008
predicted_SO0.845-0.002
4. ab_floor_and_scaling

AB rounded to 5 (raw=4.53), rates preserved: AVG=0.238 HR/AB=0.050

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB5.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB5.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.219
predicted_3B0.000-0.000
predicted_AB5.0000.592
predicted_AVG0.200-0.045
predicted_BB0.000-0.372
predicted_H1.000-0.080
predicted_HR0.000-0.228
predicted_OBP0.200-0.104
predicted_R1.0000.301
predicted_RBI1.0000.530
predicted_SLG0.200-0.250
predicted_SO1.0000.155
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB4.000-1.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0000.000
RBI1.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 67
Reference playing time: 4.530
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-21.0004.0001.0000.0001.0001.0003.0003.0002.0000.19050.29170.38100.19050.04760.04760.14290.0952
last_100.2010-47.00011.0002.0000.0002.0003.0007.0003.00011.0000.23400.28000.40430.23400.04250.06380.06380.2340
season0.6067-279.00077.00015.0000.00018.00036.00047.00024.00058.0000.27600.34090.52330.27600.06450.12900.08600.2079
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2130
predicted_3B0.0010
predicted_AB4.2420
predicted_AVG0.2505
predicted_BB0.3880
predicted_H1.0630
predicted_HBP0.0370
predicted_HR0.2320
predicted_OBP0.3184
predicted_R0.6650
predicted_RBI0.4350
predicted_SLG0.4656
predicted_SO0.8200
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.22400.21300.2193model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.53004.24204.4079model_form_blend
predicted_AVG0.23500.25050.2416model_form_blend
predicted_BB0.35800.38800.3707model_form_blend
predicted_H1.07001.06301.0670model_form_blend
predicted_HBP-0.03700.0370form_only
predicted_HR0.22000.23200.2251model_form_blend
predicted_OBP0.31600.31840.3170model_form_blend
predicted_R0.70100.66500.6857model_form_blend
predicted_RBI0.48000.43500.4609model_form_blend
predicted_SLG0.45400.46560.4589model_form_blend
predicted_SO0.86600.82000.8465model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date245
Season rows before report date245
Report year2026
Profile rows used67
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B1
3B0
HR0
R1
RBI1
BB0
SO0
SF0
HBP0
season_avg0.276

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.0
Hitting_BB1
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260617_PIT@OAK
game_typefull
mlbID669127
playerID669127
playerNameShea Langeliers
posC
startedTrue
startingPositionDH
teamOAK
teamID20
game_date2026-06-17
sl_k_percent18.8
sl_bb_percent7.8
sl_woba0.372
sl_xwoba0.375
sl_xba0.281
sl_xslg0.532
sl_sweet_spot_percent38.3
sl_barrel_batted_rate14.4
sl_hard_hit_percent43.7
sl_exit_velocity_avg91.6
sl_launch_angle_avg21.2
sl_whiff_percent25.4
sl_swing_percent51.2
Zack Gelof (680869) · BATTER · 3B · Team OAK
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 156
All-history rows before 20260618: 156
System season_avg: 0.2860
Data season_avg (2026 season-to-date): 0.2658
Diff (system - data): 0.0202
System opponent_avg: 0.2220
System season_avg diverges from 2026 season-to-date by 0.0202. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1671.0000.000Hitting_2B0.1350.0000.8651.000
predicted_3B0.0190.0000.000Hitting_3B0.0320.000-0.0320.000
predicted_AB3.6305.0004.000Hitting_AB3.6414.0001.3591.000
predicted_AVG0.2610.2000.250Hitting_AVG0.2660.250-0.066-0.050
predicted_BB0.2220.0000.000Hitting_BB0.2440.000-0.2440.000
predicted_CS-0.0000.000BaseRunning_CS0.0060.000-0.0060.000
predicted_H0.4001.0001.000Hitting_H0.9681.0000.0320.000
predicted_HR0.1000.0000.000Hitting_HR0.1991.000-0.199-1.000
predicted_OBP0.3320.2000.250Hitting_OBP0.3180.250-0.118-0.050
predicted_R0.6111.0001.000Hitting_R0.6351.0000.3650.000
predicted_RBI0.2601.0000.000Hitting_RBI0.5191.0000.4810.000
predicted_SLG0.5340.4000.250Hitting_SLG0.4841.000-0.084-0.600
predicted_SO0.9812.0001.000Hitting_SO0.9741.0001.0261.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics6
Deboosted Metrics5
Better Metrics5
Worse Metrics6
Biggest Boostpredicted_AB: 3.6300 -> 5.0000 (boost 1.3700, better)
Biggest Deboostpredicted_BB: 0.2220 -> 0.0000 (deboost -0.2220, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend88080predicted_H: 0.4000 -> 0.7465 (boost 0.3465, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.5775 -> 0.4188 (deboost -0.1587, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72525predicted_AB: 3.6883 -> 4.0000 (boost 0.3117, better)predicted_RBI: 0.4469 -> 0.0000 (deboost -0.4469, worse)AB rounded to 4 (raw=3.69), rates preserved: AVG=0.205 HR/AB=0.052
5consistency_constraints11010predicted_R: 0.7220 -> 1.0000 (boost 0.2780, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context21111predicted_AVG: 0.2048 -> 0.2500 (boost 0.0452, better)predicted_SLG: 0.4188 -> 0.2500 (deboost -0.1688, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference44031predicted_2B: 0.0000 -> 1.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final21111predicted_SLG: 0.2500 -> 0.4188 (boost 0.1688, better)predicted_AVG: 0.2500 -> 0.2048 (deboost -0.0452, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "680869",
  "player_name": "Zack Gelof",
  "position": "3B",
  "team": "OAK",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.167,
        "predicted_3B": 0.019,
        "predicted_AB": 3.63,
        "predicted_AVG": 0.261,
        "predicted_BB": 0.222,
        "predicted_H": 0.4,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.332,
        "predicted_R": 0.611,
        "predicted_RBI": 0.26,
        "predicted_SLG": 0.534,
        "predicted_SO": 0.981
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.186,
        "predicted_3B": 0.0161,
        "predicted_AB": 3.6883,
        "predicted_AVG": 0.2888,
        "predicted_BB": 0.2162,
        "predicted_H": 0.7465,
        "predicted_HBP": 0.075,
        "predicted_HR": 0.1876,
        "predicted_OBP": 0.3498,
        "predicted_R": 0.7086,
        "predicted_RBI": 0.4386,
        "predicted_SLG": 0.5775,
        "predicted_SO": 0.9562
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.167,
          "after": 0.186,
          "delta": 0.019,
          "percent_delta": 0.1138,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.019,
          "after": 0.0161,
          "delta": -0.0029,
          "percent_delta": -0.1526,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.63,
          "after": 3.6883,
          "delta": 0.0583,
          "percent_delta": 0.0161,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.261,
          "after": 0.2888,
          "delta": 0.0278,
          "percent_delta": 0.1065,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.222,
          "after": 0.2162,
          "delta": -0.0058,
          "percent_delta": -0.0261,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.4,
          "after": 0.7465,
          "delta": 0.3465,
          "percent_delta": 0.8663,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.1876,
          "delta": 0.0876,
          "percent_delta": 0.876,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_OBP",
          "before": 0.332,
          "after": 0.3498,
          "delta": 0.0178,
          "percent_delta": 0.0536,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.611,
          "after": 0.7086,
          "delta": 0.0976,
          "percent_delta": 0.1597,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.26,
          "after": 0.4386,
          "delta": 0.1786,
          "percent_delta": 0.6869,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.534,
          "after": 0.5775,
          "delta": 0.0435,
          "percent_delta": 0.0815,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.981,
          "after": 0.9562,
          "delta": -0.0248,
          "percent_delta": -0.0253,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 8,
        "deboosted_metrics": 0,
        "better_metrics": 8,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.4,
          "after": 0.7465,
          "delta": 0.3465,
          "percent_delta": 0.8663,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 54
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.186,
        "predicted_3B": 0.0161,
        "predicted_AB": 3.6883,
        "predicted_AVG": 0.2048,
        "predicted_BB": 0.2167,
        "predicted_H": 0.7555,
        "predicted_HBP": 0.075,
        "predicted_HR": 0.1904,
        "predicted_OBP": 0.249,
        "predicted_R": 0.722,
        "predicted_RBI": 0.4469,
        "predicted_SLG": 0.4188,
        "predicted_SO": 0.954
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.186,
          "after": 0.186,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0161,
          "after": 0.0161,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6883,
          "after": 3.6883,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2888,
          "after": 0.2048,
          "delta": -0.084,
          "percent_delta": -0.2909,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2162,
          "after": 0.2167,
          "delta": 0.0005,
          "percent_delta": 0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7465,
          "after": 0.7555,
          "delta": 0.009,
          "percent_delta": 0.0121,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.075,
          "after": 0.075,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1876,
          "after": 0.1904,
          "delta": 0.0028,
          "percent_delta": 0.0149,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3498,
          "after": 0.249,
          "delta": -0.1008,
          "percent_delta": -0.2882,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.7086,
          "after": 0.722,
          "delta": 0.0134,
          "percent_delta": 0.0189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4386,
          "after": 0.4469,
          "delta": 0.0083,
          "percent_delta": 0.0189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5775,
          "after": 0.4188,
          "delta": -0.1587,
          "percent_delta": -0.2748,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9562,
          "after": 0.954,
          "delta": -0.0022,
          "percent_delta": -0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.5775,
          "after": 0.4188,
          "delta": -0.1587,
          "percent_delta": -0.2748,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.69), rates preserved: AVG=0.205 HR/AB=0.052",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.186,
          "after": 0.0,
          "delta": -0.186,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0161,
          "after": 0.0,
          "delta": -0.0161,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6883,
          "after": 4.0,
          "delta": 0.3117,
          "percent_delta": 0.0845,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2167,
          "after": 0.0,
          "delta": -0.2167,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7555,
          "after": 1.0,
          "delta": 0.2445,
          "percent_delta": 0.3236,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.075,
          "after": 0.0,
          "delta": -0.075,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1904,
          "after": 0.0,
          "delta": -0.1904,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4469,
          "after": 0.0,
          "delta": -0.4469,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.954,
          "after": 1.0,
          "delta": 0.046,
          "percent_delta": 0.0482,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.6883,
          "after": 4.0,
          "delta": 0.3117,
          "percent_delta": 0.0845,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4469,
          "after": 0.0,
          "delta": -0.4469,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.722,
          "after": 1.0,
          "delta": 0.278,
          "percent_delta": 0.385,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.722,
          "after": 1.0,
          "delta": 0.278,
          "percent_delta": 0.385,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2048,
          "after": 0.25,
          "delta": 0.0452,
          "percent_delta": 0.2207,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.249,
          "after": 0.25,
          "delta": 0.001,
          "percent_delta": 0.004,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4188,
          "after": 0.25,
          "delta": -0.1688,
          "percent_delta": -0.4031,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2048,
          "after": 0.25,
          "delta": 0.0452,
          "percent_delta": 0.2207,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4188,
          "after": 0.25,
          "delta": -0.1688,
          "percent_delta": -0.4031,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 5.0,
          "delta": 1.0,
          "percent_delta": 0.25,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 4,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.2048,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.249,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4188,
        "predicted_SO": 2.0,
        "predicted_TB": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2048,
          "delta": -0.0452,
          "percent_delta": -0.1807,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.249,
          "delta": -0.001,
          "percent_delta": -0.0042,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4188,
          "delta": 0.1688,
          "percent_delta": 0.6753,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4188,
          "delta": 0.1688,
          "percent_delta": 0.6753,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2048,
          "delta": -0.0452,
          "percent_delta": -0.1807,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.167,
        "after": 1.0,
        "delta": 0.833,
        "percent_delta": 4.988,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.019,
        "after": 0.0,
        "delta": -0.019,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.63,
        "after": 5.0,
        "delta": 1.37,
        "percent_delta": 0.3774,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.261,
        "after": 0.2048,
        "delta": -0.0562,
        "percent_delta": -0.2153,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.222,
        "after": 0.0,
        "delta": -0.222,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.4,
        "after": 1.0,
        "delta": 0.6,
        "percent_delta": 1.5,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.332,
        "after": 0.249,
        "delta": -0.083,
        "percent_delta": -0.25,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.611,
        "after": 1.0,
        "delta": 0.389,
        "percent_delta": 0.6367,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.26,
        "after": 1.0,
        "delta": 0.74,
        "percent_delta": 2.8462,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.534,
        "after": 0.4188,
        "delta": -0.1152,
        "percent_delta": -0.2157,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.981,
        "after": 2.0,
        "delta": 1.019,
        "percent_delta": 1.0387,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 6,
      "deboosted_metrics": 5,
      "better_metrics": 5,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.63,
        "after": 5.0,
        "delta": 1.37,
        "percent_delta": 0.3774,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_BB",
        "before": 0.222,
        "after": 0.0,
        "delta": -0.222,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.167-
predicted_3B0.019-
predicted_AB3.630-
predicted_AVG0.261-
predicted_BB0.222-
predicted_H0.400-
predicted_HR0.100-
predicted_OBP0.332-
predicted_R0.611-
predicted_RBI0.260-
predicted_SLG0.534-
predicted_SO0.981-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1860.019
predicted_3B0.016-0.003
predicted_AB3.6880.058
predicted_AVG0.2890.028
predicted_BB0.216-0.006
predicted_H0.7470.347
predicted_HBP0.075-
predicted_HR0.1880.088
predicted_OBP0.3500.018
predicted_R0.7090.098
predicted_RBI0.4390.179
predicted_SLG0.5780.043
predicted_SO0.956-0.025
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1860.000
predicted_3B0.0160.000
predicted_AB3.6880.000
predicted_AVG0.205-0.084
predicted_BB0.2170.001
predicted_H0.7550.009
predicted_HBP0.0750.000
predicted_HR0.1900.003
predicted_OBP0.249-0.101
predicted_R0.7220.013
predicted_RBI0.4470.008
predicted_SLG0.419-0.159
predicted_SO0.954-0.002
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.69), rates preserved: AVG=0.205 HR/AB=0.052

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.186
predicted_3B0.000-0.016
predicted_AB4.0000.312
predicted_AVG0.2500.045
predicted_BB0.000-0.217
predicted_H1.0000.245
predicted_HR0.000-0.190
predicted_OBP0.2500.001
predicted_R1.0000.278
predicted_RBI0.000-0.447
predicted_SLG0.250-0.169
predicted_SO1.0000.046
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB5.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R1.0000.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 54
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-19.0009.0001.0000.0003.0006.0007.0001.0003.0000.47370.52381.00000.47370.15790.31580.05260.1579
last_100.2010-41.00015.0004.0000.0005.0008.00013.0001.00011.0000.36590.39530.82930.36590.12200.19510.02440.2683
season0.6054-196.00056.0009.0001.00011.00029.00033.00012.00053.0000.28570.33330.51020.28570.05610.14800.06120.2704
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2130
predicted_3B0.0120
predicted_AB3.7710
predicted_AVG0.3282
predicted_BB0.2080
predicted_H1.2380
predicted_HBP0.0750
predicted_HR0.3120
predicted_OBP0.3750
predicted_R0.8470
predicted_RBI0.6920
predicted_SLG0.6392
predicted_SO0.9210
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.16700.21300.1860model_form_blend
predicted_3B0.01900.01200.0161model_form_blend
predicted_AB3.63003.77103.6883model_form_blend
predicted_AVG0.26100.32820.2888model_form_blend
predicted_BB0.22200.20800.2162model_form_blend
predicted_H0.40001.23800.7465model_form_blend
predicted_HBP-0.07500.0750form_only
predicted_HR0.10000.31200.1876model_form_blend
predicted_OBP0.33200.37500.3498model_form_blend
predicted_R0.61100.84700.7086model_form_blend
predicted_RBI0.26000.69200.4386model_form_blend
predicted_SLG0.53400.63920.5775model_form_blend
predicted_SO0.98100.92100.9562model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date156
Season rows before report date156
Report year2026
Profile rows used54
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB5
H1
2B1
3B0
HR0
R1
RBI1
BB0
SO2
SF0
HBP0
season_avg0.286

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R1
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB4
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B-2B
gameID20260617_PIT@OAK
game_typefull
mlbID680869
playerID680869
playerNameZack Gelof
pos3B
startedTrue
startingPosition3B
teamOAK
teamID20
game_date2026-06-17
sl_k_percent25.0
sl_bb_percent5.7
sl_woba0.365
sl_xwoba0.288
sl_xba0.222
sl_xslg0.385
sl_sweet_spot_percent28.3
sl_barrel_batted_rate7.6
sl_hard_hit_percent42.1
sl_exit_velocity_avg89.2
sl_launch_angle_avg17.2
sl_whiff_percent28.2
sl_swing_percent46.4
Nick Kurtz (701762) · BATTER · 1B · Team OAK
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 266
All-history rows before 20260618: 266
System season_avg: 0.2920
Data season_avg (2026 season-to-date): 0.2872
Diff (system - data): 0.0048
System opponent_avg: 0.3750

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1780.0000.000Hitting_2B0.2070.000-0.2070.000
predicted_3B0.0140.0000.000Hitting_3B0.0190.000-0.0190.000
predicted_AB3.9704.0004.000Hitting_AB3.6394.0000.3610.000
predicted_AVG0.2630.2500.250Hitting_AVG0.2870.250-0.0370.000
predicted_BB0.9320.0001.000Hitting_BB0.9550.000-0.9550.000
predicted_CS-0.0000.000BaseRunning_CS0.0150.000-0.0150.000
predicted_H1.0401.0001.000Hitting_H1.0451.000-0.0450.000
predicted_HR0.2800.0000.000Hitting_HR0.1800.000-0.1800.000
predicted_OBP0.4050.2500.400Hitting_OBP0.4390.250-0.1890.000
predicted_R0.7260.0001.000Hitting_R0.6771.000-0.677-1.000
predicted_RBI0.8700.0001.000Hitting_RBI0.7180.000-0.7180.000
predicted_SLG0.5450.2500.250Hitting_SLG0.5030.250-0.2530.000
predicted_SO1.3153.0001.000Hitting_SO1.3383.0001.6620.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics4
Deboosted Metrics5
Better Metrics3
Worse Metrics6
Biggest Boostpredicted_SO: 1.3150 -> 3.0000 (boost 1.6850, worse)
Biggest Deboostpredicted_BB: 0.9320 -> 0.0000 (deboost -0.9320, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend65151predicted_R: 0.7260 -> 0.7895 (boost 0.0635, better)predicted_AB: 3.9700 -> 3.8801 (deboost -0.0899, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_SLG: 0.5850 -> 0.5792 (deboost -0.0058, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73443predicted_AB: 3.8801 -> 4.0000 (boost 0.1199, better)predicted_HR: 0.3109 -> 0.0000 (deboost -0.3109, worse)AB rounded to 4 (raw=3.97), rates preserved: AVG=0.281 HR/AB=0.078
5consistency_constraints11010predicted_R: 0.8044 -> 1.0000 (boost 0.1956, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.5792 -> 0.2500 (deboost -0.3292, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference41304predicted_SO: 1.0000 -> 3.0000 (boost 2.0000, worse)predicted_BB: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2500 -> 0.5792 (boost 0.3292, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "701762",
  "player_name": "Nick Kurtz",
  "position": "1B",
  "team": "OAK",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.178,
        "predicted_3B": 0.014,
        "predicted_AB": 3.97,
        "predicted_AVG": 0.263,
        "predicted_BB": 0.932,
        "predicted_H": 1.04,
        "predicted_HR": 0.28,
        "predicted_OBP": 0.405,
        "predicted_R": 0.726,
        "predicted_RBI": 0.87,
        "predicted_SLG": 0.545,
        "predicted_SO": 1.315
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1746,
        "predicted_3B": 0.0119,
        "predicted_AB": 3.8801,
        "predicted_AVG": 0.2856,
        "predicted_BB": 0.8915,
        "predicted_H": 1.103,
        "predicted_HBP": 0.019,
        "predicted_HR": 0.3064,
        "predicted_OBP": 0.4208,
        "predicted_R": 0.7895,
        "predicted_RBI": 0.9156,
        "predicted_SLG": 0.585,
        "predicted_SO": 1.2975
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.178,
          "after": 0.1746,
          "delta": -0.0034,
          "percent_delta": -0.0191,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.014,
          "after": 0.0119,
          "delta": -0.0021,
          "percent_delta": -0.15,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.97,
          "after": 3.8801,
          "delta": -0.0899,
          "percent_delta": -0.0226,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.263,
          "after": 0.2856,
          "delta": 0.0226,
          "percent_delta": 0.0859,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.932,
          "after": 0.8915,
          "delta": -0.0405,
          "percent_delta": -0.0435,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.04,
          "after": 1.103,
          "delta": 0.063,
          "percent_delta": 0.0606,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.28,
          "after": 0.3064,
          "delta": 0.0264,
          "percent_delta": 0.0943,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.405,
          "after": 0.4208,
          "delta": 0.0158,
          "percent_delta": 0.039,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.726,
          "after": 0.7895,
          "delta": 0.0635,
          "percent_delta": 0.0875,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.87,
          "after": 0.9156,
          "delta": 0.0456,
          "percent_delta": 0.0524,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.545,
          "after": 0.585,
          "delta": 0.04,
          "percent_delta": 0.0734,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.315,
          "after": 1.2975,
          "delta": -0.0175,
          "percent_delta": -0.0133,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 5,
        "deboosted_metrics": 1,
        "better_metrics": 5,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.726,
          "after": 0.7895,
          "delta": 0.0635,
          "percent_delta": 0.0875,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.97,
          "after": 3.8801,
          "delta": -0.0899,
          "percent_delta": -0.0226,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 73
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1746,
        "predicted_3B": 0.0119,
        "predicted_AB": 3.8801,
        "predicted_AVG": 0.2877,
        "predicted_BB": 0.8936,
        "predicted_H": 1.1162,
        "predicted_HBP": 0.019,
        "predicted_HR": 0.3109,
        "predicted_OBP": 0.421,
        "predicted_R": 0.8044,
        "predicted_RBI": 0.9329,
        "predicted_SLG": 0.5792,
        "predicted_SO": 1.2945
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1746,
          "after": 0.1746,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0119,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8801,
          "after": 3.8801,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2856,
          "after": 0.2877,
          "delta": 0.0021,
          "percent_delta": 0.0074,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.8915,
          "after": 0.8936,
          "delta": 0.0021,
          "percent_delta": 0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.103,
          "after": 1.1162,
          "delta": 0.0132,
          "percent_delta": 0.012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.019,
          "after": 0.019,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.3064,
          "after": 0.3109,
          "delta": 0.0045,
          "percent_delta": 0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4208,
          "after": 0.421,
          "delta": 0.0002,
          "percent_delta": 0.0005,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.7895,
          "after": 0.8044,
          "delta": 0.0149,
          "percent_delta": 0.0189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.9156,
          "after": 0.9329,
          "delta": 0.0173,
          "percent_delta": 0.0189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.585,
          "after": 0.5792,
          "delta": -0.0058,
          "percent_delta": -0.0099,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.2975,
          "after": 1.2945,
          "delta": -0.003,
          "percent_delta": -0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.585,
          "after": 0.5792,
          "delta": -0.0058,
          "percent_delta": -0.0099,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.97), rates preserved: AVG=0.281 HR/AB=0.078",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1746,
          "after": 0.0,
          "delta": -0.1746,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0,
          "delta": -0.0119,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8801,
          "after": 4.0,
          "delta": 0.1199,
          "percent_delta": 0.0309,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.8936,
          "after": 1.0,
          "delta": 0.1064,
          "percent_delta": 0.1191,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.1162,
          "after": 1.0,
          "delta": -0.1162,
          "percent_delta": -0.1041,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.019,
          "after": 0.0,
          "delta": -0.019,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.3109,
          "after": 0.0,
          "delta": -0.3109,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.9329,
          "after": 1.0,
          "delta": 0.0671,
          "percent_delta": 0.0719,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.2945,
          "after": 1.0,
          "delta": -0.2945,
          "percent_delta": -0.2275,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 4,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.8801,
          "after": 4.0,
          "delta": 0.1199,
          "percent_delta": 0.0309,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_HR",
          "before": 0.3109,
          "after": 0.0,
          "delta": -0.3109,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.8044,
          "after": 1.0,
          "delta": 0.1956,
          "percent_delta": 0.2432,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.8044,
          "after": 1.0,
          "delta": 0.1956,
          "percent_delta": 0.2432,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.4,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2877,
          "after": 0.25,
          "delta": -0.0377,
          "percent_delta": -0.131,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.421,
          "after": 0.4,
          "delta": -0.021,
          "percent_delta": -0.0499,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5792,
          "after": 0.25,
          "delta": -0.3292,
          "percent_delta": -0.5684,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.5792,
          "after": 0.25,
          "delta": -0.3292,
          "percent_delta": -0.5684,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 1,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2877,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_FB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.421,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.5792,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2877,
          "delta": 0.0377,
          "percent_delta": 0.1507,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.421,
          "delta": 0.021,
          "percent_delta": 0.0525,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.5792,
          "delta": 0.3292,
          "percent_delta": 1.3169,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.5792,
          "delta": 0.3292,
          "percent_delta": 1.3169,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.178,
        "after": 0.0,
        "delta": -0.178,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.014,
        "after": 0.0,
        "delta": -0.014,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.97,
        "after": 4.0,
        "delta": 0.03,
        "percent_delta": 0.0076,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AVG",
        "before": 0.263,
        "after": 0.2877,
        "delta": 0.0247,
        "percent_delta": 0.0939,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.932,
        "after": 0.0,
        "delta": -0.932,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.04,
        "after": 1.0,
        "delta": -0.04,
        "percent_delta": -0.0385,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.28,
        "after": 0.0,
        "delta": -0.28,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.405,
        "after": 0.421,
        "delta": 0.016,
        "percent_delta": 0.0395,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.726,
        "after": 0.0,
        "delta": -0.726,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.87,
        "after": 0.0,
        "delta": -0.87,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.545,
        "after": 0.5792,
        "delta": 0.0342,
        "percent_delta": 0.0628,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.315,
        "after": 3.0,
        "delta": 1.685,
        "percent_delta": 1.2814,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 4,
      "deboosted_metrics": 5,
      "better_metrics": 3,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 1.315,
        "after": 3.0,
        "delta": 1.685,
        "percent_delta": 1.2814,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_BB",
        "before": 0.932,
        "after": 0.0,
        "delta": -0.932,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.178-
predicted_3B0.014-
predicted_AB3.970-
predicted_AVG0.263-
predicted_BB0.932-
predicted_H1.040-
predicted_HR0.280-
predicted_OBP0.405-
predicted_R0.726-
predicted_RBI0.870-
predicted_SLG0.545-
predicted_SO1.315-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.175-0.003
predicted_3B0.012-0.002
predicted_AB3.880-0.090
predicted_AVG0.2860.023
predicted_BB0.891-0.041
predicted_H1.1030.063
predicted_HBP0.019-
predicted_HR0.3060.026
predicted_OBP0.4210.016
predicted_R0.7890.064
predicted_RBI0.9160.046
predicted_SLG0.5850.040
predicted_SO1.298-0.017
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1750.000
predicted_3B0.0120.000
predicted_AB3.8800.000
predicted_AVG0.2880.002
predicted_BB0.8940.002
predicted_H1.1160.013
predicted_HBP0.0190.000
predicted_HR0.3110.005
predicted_OBP0.4210.000
predicted_R0.8040.015
predicted_RBI0.9330.017
predicted_SLG0.579-0.006
predicted_SO1.294-0.003
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.97), rates preserved: AVG=0.281 HR/AB=0.078

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.175
predicted_3B0.000-0.012
predicted_AB4.0000.120
predicted_AVG0.250-0.038
predicted_BB1.0000.106
predicted_H1.000-0.116
predicted_HR0.000-0.311
predicted_OBP0.400-0.021
predicted_R1.0000.196
predicted_RBI1.0000.067
predicted_SLG0.250-0.329
predicted_SO1.000-0.294
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.000-1.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO3.0002.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 73
Reference playing time: 3.970
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-19.0007.0001.0000.0002.0007.0006.0004.0006.0000.36840.47830.73680.36840.10530.36840.21050.3158
last_100.2010-41.00015.0001.0000.0007.00014.00012.0008.00014.0000.36590.46940.90240.36590.17070.34150.19510.3415
season0.6073-264.00077.00013.0001.00018.00057.00053.00068.00096.0000.29170.44010.55300.29170.06820.21590.25760.3636
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1700
predicted_3B0.0090
predicted_AB3.7590
predicted_AVG0.3160
predicted_BB0.8370
predicted_H1.1880
predicted_HBP0.0190
predicted_HR0.3420
predicted_OBP0.4420
predicted_R0.8750
predicted_RBI0.9770
predicted_SLG0.6390
predicted_SO1.2740
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.17800.17000.1746model_form_blend
predicted_3B0.01400.00900.0119model_form_blend
predicted_AB3.97003.75903.8801model_form_blend
predicted_AVG0.26300.31600.2856model_form_blend
predicted_BB0.93200.83700.8915model_form_blend
predicted_H1.04001.18801.1030model_form_blend
predicted_HBP-0.01900.0190form_only
predicted_HR0.28000.34200.3064model_form_blend
predicted_OBP0.40500.44200.4208model_form_blend
predicted_R0.72600.87500.7895model_form_blend
predicted_RBI0.87000.97700.9156model_form_blend
predicted_SLG0.54500.63900.5850model_form_blend
predicted_SO1.31501.27401.2975model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date266
Season rows before report date266
Report year2026
Profile rows used73
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO3
SF0
HBP0
season_avg0.292

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO3
Hitting_TB1
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B
gameID20260617_PIT@OAK
game_typefull
mlbID701762
playerID701762
playerNameNick Kurtz
pos1B
startedTrue
startingPosition1B
teamOAK
teamID20
game_date2026-06-17
sl_k_percent28.7
sl_bb_percent20.4
sl_woba0.425
sl_xwoba0.395
sl_xba0.258
sl_xslg0.513
sl_sweet_spot_percent38.1
sl_barrel_batted_rate17.9
sl_hard_hit_percent57.7
sl_exit_velocity_avg94.2
sl_launch_angle_avg12.4
sl_whiff_percent34.4
sl_swing_percent41.4
Tyler Soderstrom (691016) · BATTER · LF · Team OAK
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 240
All-history rows before 20260618: 240
System season_avg: 0.2380
Data season_avg (2026 season-to-date): 0.2217
Diff (system - data): 0.0163
System opponent_avg: 0.2000
System season_avg diverges from 2026 season-to-date by 0.0163. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2680.0000.000Hitting_2B0.3120.000-0.3120.000
predicted_3B0.0280.0000.000Hitting_3B0.0290.000-0.0290.000
predicted_AB3.8903.0004.000Hitting_AB3.8334.000-0.833-1.000
predicted_AVG0.2410.3330.250Hitting_AVG0.2220.0000.1120.333
predicted_BB0.5351.0001.000Hitting_BB0.5000.0000.5001.000
predicted_CS-0.0000.000BaseRunning_CS0.0170.000-0.0170.000
predicted_H0.9401.0001.000Hitting_H0.8500.0000.1501.000
predicted_HR0.1900.0000.000Hitting_HR0.1330.000-0.1330.000
predicted_OBP0.3470.5000.400Hitting_OBP0.3130.0000.1870.500
predicted_R0.4931.0001.000Hitting_R0.5170.0000.4831.000
predicted_RBI0.6000.0001.000Hitting_RBI0.5120.000-0.5120.000
predicted_SLG0.4680.3330.250Hitting_SLG0.4230.000-0.0890.333
predicted_SO0.7750.0001.000Hitting_SO0.7871.000-0.787-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics10
Boosted Metrics5
Deboosted Metrics5
Better Metrics6
Worse Metrics4
Biggest Boostpredicted_R: 0.4930 -> 1.0000 (boost 0.5070, better)
Biggest Deboostpredicted_AB: 3.8900 -> 3.0000 (deboost -0.8900, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend54141predicted_R: 0.4930 -> 0.5595 (boost 0.0665, better)predicted_AB: 3.8900 -> 3.7685 (deboost -0.1215, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot21111predicted_SLG: 0.4912 -> 0.4974 (boost 0.0062, better)predicted_OBP: 0.3529 -> 0.3474 (deboost -0.0055, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling75243predicted_BB: 0.5545 -> 1.0000 (boost 0.4455, better)predicted_2B: 0.2705 -> 0.0000 (deboost -0.2705, worse)AB rounded to 4 (raw=3.89), rates preserved: AVG=0.244 HR/AB=0.052
5consistency_constraints11010predicted_R: 0.5701 -> 1.0000 (boost 0.4299, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context21111predicted_OBP: 0.3474 -> 0.4000 (boost 0.0526, better)predicted_SLG: 0.4974 -> 0.2500 (deboost -0.2474, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference30312-predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final21111predicted_SLG: 0.2500 -> 0.4974 (boost 0.2474, better)predicted_OBP: 0.4000 -> 0.3474 (deboost -0.0526, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "691016",
  "player_name": "Tyler Soderstrom",
  "position": "LF",
  "team": "OAK",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.268,
        "predicted_3B": 0.028,
        "predicted_AB": 3.89,
        "predicted_AVG": 0.241,
        "predicted_BB": 0.535,
        "predicted_H": 0.94,
        "predicted_HR": 0.19,
        "predicted_OBP": 0.347,
        "predicted_R": 0.493,
        "predicted_RBI": 0.6,
        "predicted_SLG": 0.468,
        "predicted_SO": 0.775
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2705,
        "predicted_3B": 0.0229,
        "predicted_AB": 3.7685,
        "predicted_AVG": 0.2483,
        "predicted_BB": 0.5532,
        "predicted_H": 0.9362,
        "predicted_HBP": 0.011,
        "predicted_HR": 0.2006,
        "predicted_OBP": 0.3529,
        "predicted_R": 0.5595,
        "predicted_RBI": 0.6093,
        "predicted_SLG": 0.4912,
        "predicted_SO": 0.7822
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.268,
          "after": 0.2705,
          "delta": 0.0025,
          "percent_delta": 0.0093,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.028,
          "after": 0.0229,
          "delta": -0.0051,
          "percent_delta": -0.1821,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.89,
          "after": 3.7685,
          "delta": -0.1215,
          "percent_delta": -0.0312,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.241,
          "after": 0.2483,
          "delta": 0.0073,
          "percent_delta": 0.0303,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.535,
          "after": 0.5532,
          "delta": 0.0182,
          "percent_delta": 0.034,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.94,
          "after": 0.9362,
          "delta": -0.0038,
          "percent_delta": -0.004,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.19,
          "after": 0.2006,
          "delta": 0.0106,
          "percent_delta": 0.0558,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.347,
          "after": 0.3529,
          "delta": 0.0059,
          "percent_delta": 0.017,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.493,
          "after": 0.5595,
          "delta": 0.0665,
          "percent_delta": 0.1349,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6,
          "after": 0.6093,
          "delta": 0.0093,
          "percent_delta": 0.0155,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.468,
          "after": 0.4912,
          "delta": 0.0232,
          "percent_delta": 0.0496,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.775,
          "after": 0.7822,
          "delta": 0.0072,
          "percent_delta": 0.0093,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 4,
        "deboosted_metrics": 1,
        "better_metrics": 4,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.493,
          "after": 0.5595,
          "delta": 0.0665,
          "percent_delta": 0.1349,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.89,
          "after": 3.7685,
          "delta": -0.1215,
          "percent_delta": -0.0312,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 71
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2705,
        "predicted_3B": 0.0229,
        "predicted_AB": 3.7685,
        "predicted_AVG": 0.2514,
        "predicted_BB": 0.5545,
        "predicted_H": 0.9474,
        "predicted_HBP": 0.011,
        "predicted_HR": 0.2036,
        "predicted_OBP": 0.3474,
        "predicted_R": 0.5701,
        "predicted_RBI": 0.6208,
        "predicted_SLG": 0.4974,
        "predicted_SO": 0.7804
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2705,
          "after": 0.2705,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0229,
          "after": 0.0229,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.7685,
          "after": 3.7685,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2483,
          "after": 0.2514,
          "delta": 0.0031,
          "percent_delta": 0.0125,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.5532,
          "after": 0.5545,
          "delta": 0.0013,
          "percent_delta": 0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9362,
          "after": 0.9474,
          "delta": 0.0112,
          "percent_delta": 0.012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.011,
          "after": 0.011,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2006,
          "after": 0.2036,
          "delta": 0.003,
          "percent_delta": 0.015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3529,
          "after": 0.3474,
          "delta": -0.0055,
          "percent_delta": -0.0156,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5595,
          "after": 0.5701,
          "delta": 0.0106,
          "percent_delta": 0.0189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6093,
          "after": 0.6208,
          "delta": 0.0115,
          "percent_delta": 0.0189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4912,
          "after": 0.4974,
          "delta": 0.0062,
          "percent_delta": 0.0126,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7822,
          "after": 0.7804,
          "delta": -0.0018,
          "percent_delta": -0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.4912,
          "after": 0.4974,
          "delta": 0.0062,
          "percent_delta": 0.0126,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3529,
          "after": 0.3474,
          "delta": -0.0055,
          "percent_delta": -0.0156,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.89), rates preserved: AVG=0.244 HR/AB=0.052",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2705,
          "after": 0.0,
          "delta": -0.2705,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0229,
          "after": 0.0,
          "delta": -0.0229,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.7685,
          "after": 4.0,
          "delta": 0.2315,
          "percent_delta": 0.0614,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.5545,
          "after": 1.0,
          "delta": 0.4455,
          "percent_delta": 0.8034,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9474,
          "after": 1.0,
          "delta": 0.0526,
          "percent_delta": 0.0555,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.011,
          "after": 0.0,
          "delta": -0.011,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2036,
          "after": 0.0,
          "delta": -0.2036,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6208,
          "after": 1.0,
          "delta": 0.3792,
          "percent_delta": 0.6108,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7804,
          "after": 1.0,
          "delta": 0.2196,
          "percent_delta": 0.2814,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 5,
        "deboosted_metrics": 2,
        "better_metrics": 4,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.5545,
          "after": 1.0,
          "delta": 0.4455,
          "percent_delta": 0.8034,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_2B",
          "before": 0.2705,
          "after": 0.0,
          "delta": -0.2705,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5701,
          "after": 1.0,
          "delta": 0.4299,
          "percent_delta": 0.7541,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5701,
          "after": 1.0,
          "delta": 0.4299,
          "percent_delta": 0.7541,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.4,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2514,
          "after": 0.25,
          "delta": -0.0014,
          "percent_delta": -0.0056,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3474,
          "after": 0.4,
          "delta": 0.0526,
          "percent_delta": 0.1514,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4974,
          "after": 0.25,
          "delta": -0.2474,
          "percent_delta": -0.4974,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3474,
          "after": 0.4,
          "delta": 0.0526,
          "percent_delta": 0.1514,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4974,
          "after": 0.25,
          "delta": -0.2474,
          "percent_delta": -0.4974,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2514,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_LF": 0.0,
        "predicted_OBP": 0.3474,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4974,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2514,
          "delta": 0.0014,
          "percent_delta": 0.0056,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3474,
          "delta": -0.0526,
          "percent_delta": -0.1314,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4974,
          "delta": 0.2474,
          "percent_delta": 0.9896,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4974,
          "delta": 0.2474,
          "percent_delta": 0.9896,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3474,
          "delta": -0.0526,
          "percent_delta": -0.1314,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.268,
        "after": 0.0,
        "delta": -0.268,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.028,
        "after": 0.0,
        "delta": -0.028,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.89,
        "after": 3.0,
        "delta": -0.89,
        "percent_delta": -0.2288,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.241,
        "after": 0.2514,
        "delta": 0.0104,
        "percent_delta": 0.0432,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.535,
        "after": 1.0,
        "delta": 0.465,
        "percent_delta": 0.8692,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.94,
        "after": 1.0,
        "delta": 0.06,
        "percent_delta": 0.0638,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.19,
        "after": 0.0,
        "delta": -0.19,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.347,
        "after": 0.3474,
        "delta": 0.0004,
        "percent_delta": 0.0012,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.493,
        "after": 1.0,
        "delta": 0.507,
        "percent_delta": 1.0284,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.6,
        "after": 0.0,
        "delta": -0.6,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.468,
        "after": 0.4974,
        "delta": 0.0294,
        "percent_delta": 0.0628,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.775,
        "after": 0.0,
        "delta": -0.775,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 5,
      "deboosted_metrics": 5,
      "better_metrics": 6,
      "worse_metrics": 4,
      "biggest_boost": {
        "metric": "predicted_R",
        "before": 0.493,
        "after": 1.0,
        "delta": 0.507,
        "percent_delta": 1.0284,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 3.89,
        "after": 3.0,
        "delta": -0.89,
        "percent_delta": -0.2288,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.268-
predicted_3B0.028-
predicted_AB3.890-
predicted_AVG0.241-
predicted_BB0.535-
predicted_H0.940-
predicted_HR0.190-
predicted_OBP0.347-
predicted_R0.493-
predicted_RBI0.600-
predicted_SLG0.468-
predicted_SO0.775-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2710.003
predicted_3B0.023-0.005
predicted_AB3.768-0.122
predicted_AVG0.2480.007
predicted_BB0.5530.018
predicted_H0.936-0.004
predicted_HBP0.011-
predicted_HR0.2010.011
predicted_OBP0.3530.006
predicted_R0.5590.067
predicted_RBI0.6090.009
predicted_SLG0.4910.023
predicted_SO0.7820.007
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2710.000
predicted_3B0.0230.000
predicted_AB3.7680.000
predicted_AVG0.2510.003
predicted_BB0.5540.001
predicted_H0.9470.011
predicted_HBP0.0110.000
predicted_HR0.2040.003
predicted_OBP0.347-0.006
predicted_R0.5700.011
predicted_RBI0.6210.012
predicted_SLG0.4970.006
predicted_SO0.780-0.002
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.89), rates preserved: AVG=0.244 HR/AB=0.052

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.271
predicted_3B0.000-0.023
predicted_AB4.0000.232
predicted_AVG0.250-0.001
predicted_BB1.0000.446
predicted_H1.0000.053
predicted_HR0.000-0.204
predicted_OBP0.4000.053
predicted_R1.0000.430
predicted_RBI1.0000.379
predicted_SLG0.250-0.247
predicted_SO1.0000.220
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB1.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 71
Reference playing time: 3.890
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0005.0002.0000.0001.0003.0005.0003.0004.0000.29410.40000.58820.29410.05880.17650.17650.2353
last_100.2010-35.00010.0002.0000.0004.0009.0008.0008.0008.0000.28570.41860.68570.28570.11430.25710.22860.2286
season0.6071-260.00062.00019.0002.00012.00039.00035.00038.00055.0000.23850.33670.46540.23850.04610.15000.14620.2115
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2740
predicted_3B0.0160
predicted_AB3.6030
predicted_AVG0.2583
predicted_BB0.5780
predicted_H0.9310
predicted_HBP0.0110
predicted_HR0.2150
predicted_OBP0.3610
predicted_R0.6500
predicted_RBI0.6220
predicted_SLG0.5227
predicted_SO0.7920
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.26800.27400.2705model_form_blend
predicted_3B0.02800.01600.0229model_form_blend
predicted_AB3.89003.60303.7685model_form_blend
predicted_AVG0.24100.25830.2483model_form_blend
predicted_BB0.53500.57800.5532model_form_blend
predicted_H0.94000.93100.9362model_form_blend
predicted_HBP-0.01100.0110form_only
predicted_HR0.19000.21500.2006model_form_blend
predicted_OBP0.34700.36100.3529model_form_blend
predicted_R0.49300.65000.5595model_form_blend
predicted_RBI0.60000.62200.6093model_form_blend
predicted_SLG0.46800.52270.4912model_form_blend
predicted_SO0.77500.79200.7822model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date240
Season rows before report date240
Report year2026
Profile rows used71
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B0
3B0
HR0
R1
RBI0
BB1
SO0
SF0
HBP0
season_avg0.238

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB0
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedLF
gameID20260617_PIT@OAK
game_typefull
mlbID691016
playerID691016
playerNameTyler Soderstrom
posLF
startedTrue
startingPositionLF
teamOAK
teamID20
game_date2026-06-17
sl_k_percent18.3
sl_bb_percent12.7
sl_woba0.343
sl_xwoba0.329
sl_xba0.241
sl_xslg0.418
sl_sweet_spot_percent28.6
sl_barrel_batted_rate10.7
sl_hard_hit_percent44.2
sl_exit_velocity_avg89.8
sl_launch_angle_avg12.5
sl_whiff_percent21.6
sl_swing_percent46.5
Jacob Wilson (805779) · BATTER · SS · Team OAK
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 174
All-history rows before 20260618: 174
System season_avg: 0.2830
Data season_avg (2026 season-to-date): 0.2830
Diff (system - data): 0.0000
System opponent_avg: 0.2830

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2050.0000.000Hitting_2B0.1900.000-0.1900.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.3103.0004.000Hitting_AB4.2243.000-1.2240.000
predicted_AVG0.2380.3330.250Hitting_AVG0.2830.3330.0500.000
predicted_BB0.1591.0000.000Hitting_BB0.1440.0000.8561.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H1.0201.0001.000Hitting_H1.1951.000-0.1950.000
predicted_HR0.0900.0000.000Hitting_HR0.0800.000-0.0800.000
predicted_OBP0.3050.5000.250Hitting_OBP0.3050.3330.1950.167
predicted_R0.4551.0000.000Hitting_R0.4890.0000.5111.000
predicted_RBI0.5900.0001.000Hitting_RBI0.5062.000-0.506-2.000
predicted_SLG0.3650.3330.250Hitting_SLG0.3850.333-0.0520.000
predicted_SO0.5001.0000.000Hitting_SO0.5570.0000.4431.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics4
Deboosted Metrics6
Better Metrics3
Worse Metrics7
Biggest Boostpredicted_BB: 0.1590 -> 1.0000 (boost 0.8410, better)
Biggest Deboostpredicted_AB: 4.3100 -> 3.0000 (deboost -1.3100, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend21111predicted_AVG: 0.2380 -> 0.2463 (boost 0.0083, better)predicted_AB: 4.3100 -> 4.1666 (deboost -0.1434, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3040 -> 0.2816 (deboost -0.0224, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling61524predicted_RBI: 0.6141 -> 1.0000 (boost 0.3859, better)predicted_SO: 0.5193 -> 0.0000 (deboost -0.5193, better)AB rounded to 4 (raw=4.31), rates preserved: AVG=0.240 HR/AB=0.019
5consistency_constraints10101-predicted_R: 0.4582 -> 0.0000 (deboost -0.4582, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context20202-predicted_SLG: 0.3554 -> 0.2500 (deboost -0.1054, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference53223predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final22020predicted_SLG: 0.2500 -> 0.3554 (boost 0.1054, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "805779",
  "player_name": "Jacob Wilson",
  "position": "SS",
  "team": "OAK",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.205,
        "predicted_3B": 0.0,
        "predicted_AB": 4.31,
        "predicted_AVG": 0.238,
        "predicted_BB": 0.159,
        "predicted_H": 1.02,
        "predicted_HR": 0.09,
        "predicted_OBP": 0.305,
        "predicted_R": 0.455,
        "predicted_RBI": 0.59,
        "predicted_SLG": 0.365,
        "predicted_SO": 0.5
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.196,
        "predicted_3B": 0.0008,
        "predicted_AB": 4.1666,
        "predicted_AVG": 0.2463,
        "predicted_BB": 0.1951,
        "predicted_H": 1.0208,
        "predicted_HBP": 0.005,
        "predicted_HR": 0.0822,
        "predicted_OBP": 0.304,
        "predicted_R": 0.4497,
        "predicted_RBI": 0.6027,
        "predicted_SLG": 0.3626,
        "predicted_SO": 0.5205
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.205,
          "after": 0.196,
          "delta": -0.009,
          "percent_delta": -0.0439,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.31,
          "after": 4.1666,
          "delta": -0.1434,
          "percent_delta": -0.0333,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.238,
          "after": 0.2463,
          "delta": 0.0083,
          "percent_delta": 0.0349,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.159,
          "after": 0.1951,
          "delta": 0.0361,
          "percent_delta": 0.227,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.02,
          "after": 1.0208,
          "delta": 0.0008,
          "percent_delta": 0.0008,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.09,
          "after": 0.0822,
          "delta": -0.0078,
          "percent_delta": -0.0867,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.305,
          "after": 0.304,
          "delta": -0.001,
          "percent_delta": -0.0033,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.455,
          "after": 0.4497,
          "delta": -0.0053,
          "percent_delta": -0.0116,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.59,
          "after": 0.6027,
          "delta": 0.0127,
          "percent_delta": 0.0215,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.365,
          "after": 0.3626,
          "delta": -0.0024,
          "percent_delta": -0.0066,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.5,
          "after": 0.5205,
          "delta": 0.0205,
          "percent_delta": 0.041,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.238,
          "after": 0.2463,
          "delta": 0.0083,
          "percent_delta": 0.0349,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.31,
          "after": 4.1666,
          "delta": -0.1434,
          "percent_delta": -0.0333,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 44
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.196,
        "predicted_3B": 0.0008,
        "predicted_AB": 4.1666,
        "predicted_AVG": 0.2479,
        "predicted_BB": 0.1955,
        "predicted_H": 1.033,
        "predicted_HBP": 0.005,
        "predicted_HR": 0.0834,
        "predicted_OBP": 0.2816,
        "predicted_R": 0.4582,
        "predicted_RBI": 0.6141,
        "predicted_SLG": 0.3554,
        "predicted_SO": 0.5193
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.196,
          "after": 0.196,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.1666,
          "after": 4.1666,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2463,
          "after": 0.2479,
          "delta": 0.0016,
          "percent_delta": 0.0065,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.1951,
          "after": 0.1955,
          "delta": 0.0004,
          "percent_delta": 0.0021,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0208,
          "after": 1.033,
          "delta": 0.0122,
          "percent_delta": 0.012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.005,
          "after": 0.005,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0822,
          "after": 0.0834,
          "delta": 0.0012,
          "percent_delta": 0.0146,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.304,
          "after": 0.2816,
          "delta": -0.0224,
          "percent_delta": -0.0737,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4497,
          "after": 0.4582,
          "delta": 0.0085,
          "percent_delta": 0.0189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6027,
          "after": 0.6141,
          "delta": 0.0114,
          "percent_delta": 0.0189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3626,
          "after": 0.3554,
          "delta": -0.0072,
          "percent_delta": -0.0199,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5205,
          "after": 0.5193,
          "delta": -0.0012,
          "percent_delta": -0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.304,
          "after": 0.2816,
          "delta": -0.0224,
          "percent_delta": -0.0737,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.31), rates preserved: AVG=0.240 HR/AB=0.019",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.196,
          "after": 0.0,
          "delta": -0.196,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.1666,
          "after": 4.0,
          "delta": -0.1666,
          "percent_delta": -0.04,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1955,
          "after": 0.0,
          "delta": -0.1955,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.033,
          "after": 1.0,
          "delta": -0.033,
          "percent_delta": -0.0319,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.005,
          "after": 0.0,
          "delta": -0.005,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0834,
          "after": 0.0,
          "delta": -0.0834,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6141,
          "after": 1.0,
          "delta": 0.3859,
          "percent_delta": 0.6284,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5193,
          "after": 0.0,
          "delta": -0.5193,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 1,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.6141,
          "after": 1.0,
          "delta": 0.3859,
          "percent_delta": 0.6284,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 0.5193,
          "after": 0.0,
          "delta": -0.5193,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4582,
          "after": 0.0,
          "delta": -0.4582,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4582,
          "after": 0.0,
          "delta": -0.4582,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2479,
          "after": 0.25,
          "delta": 0.0021,
          "percent_delta": 0.0085,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2816,
          "after": 0.25,
          "delta": -0.0316,
          "percent_delta": -0.1122,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3554,
          "after": 0.25,
          "delta": -0.1054,
          "percent_delta": -0.2966,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3554,
          "after": 0.25,
          "delta": -0.1054,
          "percent_delta": -0.2966,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 3,
        "deboosted_metrics": 2,
        "better_metrics": 2,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2479,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2816,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3554,
        "predicted_SO": 1.0,
        "predicted_SS": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2479,
          "delta": -0.0021,
          "percent_delta": -0.0083,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2816,
          "delta": 0.0316,
          "percent_delta": 0.1266,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3554,
          "delta": 0.1054,
          "percent_delta": 0.4217,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3554,
          "delta": 0.1054,
          "percent_delta": 0.4217,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.205,
        "after": 0.0,
        "delta": -0.205,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.31,
        "after": 3.0,
        "delta": -1.31,
        "percent_delta": -0.3039,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.238,
        "after": 0.2479,
        "delta": 0.0099,
        "percent_delta": 0.0416,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.159,
        "after": 1.0,
        "delta": 0.841,
        "percent_delta": 5.2893,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.02,
        "after": 1.0,
        "delta": -0.02,
        "percent_delta": -0.0196,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.09,
        "after": 0.0,
        "delta": -0.09,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.305,
        "after": 0.2816,
        "delta": -0.0234,
        "percent_delta": -0.0767,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.455,
        "after": 1.0,
        "delta": 0.545,
        "percent_delta": 1.1978,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.59,
        "after": 0.0,
        "delta": -0.59,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.365,
        "after": 0.3554,
        "delta": -0.0096,
        "percent_delta": -0.0263,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.5,
        "after": 1.0,
        "delta": 0.5,
        "percent_delta": 1.0,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 4,
      "deboosted_metrics": 6,
      "better_metrics": 3,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.159,
        "after": 1.0,
        "delta": 0.841,
        "percent_delta": 5.2893,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 4.31,
        "after": 3.0,
        "delta": -1.31,
        "percent_delta": -0.3039,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.205-
predicted_3B0.000-
predicted_AB4.310-
predicted_AVG0.238-
predicted_BB0.159-
predicted_H1.020-
predicted_HR0.090-
predicted_OBP0.305-
predicted_R0.455-
predicted_RBI0.590-
predicted_SLG0.365-
predicted_SO0.500-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.196-0.009
predicted_3B0.0010.001
predicted_AB4.167-0.143
predicted_AVG0.2460.008
predicted_BB0.1950.036
predicted_H1.0210.001
predicted_HBP0.005-
predicted_HR0.082-0.008
predicted_OBP0.304-0.001
predicted_R0.450-0.005
predicted_RBI0.6030.013
predicted_SLG0.363-0.002
predicted_SO0.5200.020
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1960.000
predicted_3B0.0010.000
predicted_AB4.1670.000
predicted_AVG0.2480.002
predicted_BB0.1960.000
predicted_H1.0330.012
predicted_HBP0.0050.000
predicted_HR0.0830.001
predicted_OBP0.282-0.022
predicted_R0.4580.009
predicted_RBI0.6140.011
predicted_SLG0.355-0.007
predicted_SO0.519-0.001
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.31), rates preserved: AVG=0.240 HR/AB=0.019

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO0.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO0.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.196
predicted_3B0.000-0.001
predicted_AB4.000-0.167
predicted_AVG0.2500.002
predicted_BB0.000-0.196
predicted_H1.000-0.033
predicted_HR0.000-0.083
predicted_OBP0.250-0.032
predicted_R0.000-0.458
predicted_RBI1.0000.386
predicted_SLG0.250-0.105
predicted_SO0.000-0.519
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO1.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 44
Reference playing time: 4.310
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-19.0004.0001.0000.0000.0004.0002.0002.0002.0000.21050.28570.26320.21050.00000.21050.10530.1053
last_100.2010-38.0009.0001.0000.0001.0008.0004.0003.0006.0000.23680.29270.34210.23680.02630.21050.07900.1579
season0.6044-180.00051.0009.0000.0003.00023.00020.0007.00022.0000.28330.30850.38330.28330.01670.12780.03890.1222
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1830
predicted_3B0.0020
predicted_AB3.9600
predicted_AVG0.2582
predicted_BB0.2470
predicted_H1.0220
predicted_HBP0.0050
predicted_HR0.0710
predicted_OBP0.3025
predicted_R0.4420
predicted_RBI0.6210
predicted_SLG0.3591
predicted_SO0.5500
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.20500.18300.1960model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB4.31003.96004.1666model_form_blend
predicted_AVG0.23800.25820.2463model_form_blend
predicted_BB0.15900.24700.1951model_form_blend
predicted_H1.02001.02201.0208model_form_blend
predicted_HBP-0.00500.0050form_only
predicted_HR0.09000.07100.0822model_form_blend
predicted_OBP0.30500.30250.3040model_form_blend
predicted_R0.45500.44200.4497model_form_blend
predicted_RBI0.59000.62100.6027model_form_blend
predicted_SLG0.36500.35910.3626model_form_blend
predicted_SO0.50000.55000.5205model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date174
Season rows before report date174
Report year2026
Profile rows used44
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B0
3B0
HR0
R1
RBI0
BB1
SO1
SF0
HBP0
season_avg0.283

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI2
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedSS
gameID20260617_PIT@OAK
game_typefull
mlbID805779
playerID805779
playerNameJacob Wilson
posSS
startedTrue
startingPositionSS
teamOAK
teamID20
game_date2026-06-17
sl_k_percent11.6
sl_bb_percent3.7
sl_woba0.305
sl_xwoba0.271
sl_xba0.26
sl_xslg0.329
sl_sweet_spot_percent31.3
sl_barrel_batted_rate1.9
sl_hard_hit_percent27.5
sl_exit_velocity_avg84.1
sl_launch_angle_avg8.3
sl_whiff_percent15.2
sl_swing_percent57.3
Jonah Heim (641680) · BATTER · DH · Team OAK
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 39
All-history rows before 20260618: 39
System season_avg: 0.2530
Data season_avg (2026 season-to-date): 0.2190
Diff (system - data): 0.0340
System opponent_avg: 0.2310
System season_avg diverges from 2026 season-to-date by 0.0340. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2580.0000.000Hitting_2B0.3080.000-0.3080.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.1304.0003.000Hitting_AB3.5133.0000.4871.000
predicted_AVG0.2750.2500.333Hitting_AVG0.2190.6670.031-0.417
predicted_BB0.2900.0000.000Hitting_BB0.2821.000-0.282-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.8601.0001.000Hitting_H0.7692.0000.231-1.000
predicted_HR0.1700.0000.000Hitting_HR0.1030.000-0.1030.000
predicted_OBP0.3480.2500.333Hitting_OBP0.2770.750-0.027-0.500
predicted_R0.4190.0000.000Hitting_R0.5130.000-0.5130.000
predicted_RBI0.4400.0000.000Hitting_RBI0.1540.000-0.1540.000
predicted_SLG0.5110.2500.333Hitting_SLG0.3940.667-0.144-0.417
predicted_SO0.5812.0001.000Hitting_SO0.9490.0001.0512.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics5
Deboosted Metrics5
Better Metrics4
Worse Metrics6
Biggest Boostpredicted_SO: 0.5810 -> 2.0000 (boost 1.4190, worse)
Biggest Deboostpredicted_RBI: 0.4400 -> 0.0000 (deboost -0.4400, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend55050predicted_H: 0.8600 -> 0.9139 (boost 0.0539, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot11010predicted_SLG: 0.5356 -> 0.5479 (boost 0.0123, better)-Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_SO: 0.5973 -> 1.0000 (boost 0.4027, worse)predicted_RBI: 0.4542 -> 0.0000 (deboost -0.4542, worse)AB rounded to 3 (raw=3.18), rates preserved: AVG=0.291 HR/AB=0.058
5consistency_constraints10101-predicted_R: 0.4462 -> 0.0000 (deboost -0.4462, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2905 -> 0.3330 (boost 0.0425, better)predicted_SLG: 0.5479 -> 0.3330 (deboost -0.2149, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference22011predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.3330 -> 0.5479 (boost 0.2149, better)predicted_AVG: 0.3330 -> 0.2905 (deboost -0.0425, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "641680",
  "player_name": "Jonah Heim",
  "position": "DH",
  "team": "OAK",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.258,
        "predicted_3B": 0.0,
        "predicted_AB": 3.13,
        "predicted_AVG": 0.275,
        "predicted_BB": 0.29,
        "predicted_H": 0.86,
        "predicted_HR": 0.17,
        "predicted_OBP": 0.348,
        "predicted_R": 0.419,
        "predicted_RBI": 0.44,
        "predicted_SLG": 0.511,
        "predicted_SO": 0.581
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2584,
        "predicted_3B": 0.0012,
        "predicted_AB": 3.1835,
        "predicted_AVG": 0.2869,
        "predicted_BB": 0.2919,
        "predicted_H": 0.9139,
        "predicted_HBP": 0.007,
        "predicted_HR": 0.1835,
        "predicted_OBP": 0.3539,
        "predicted_R": 0.4379,
        "predicted_RBI": 0.4458,
        "predicted_SLG": 0.5356,
        "predicted_SO": 0.5987
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.258,
          "after": 0.2584,
          "delta": 0.0004,
          "percent_delta": 0.0016,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0012,
          "delta": 0.0012,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.13,
          "after": 3.1835,
          "delta": 0.0535,
          "percent_delta": 0.0171,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.275,
          "after": 0.2869,
          "delta": 0.0119,
          "percent_delta": 0.0433,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.29,
          "after": 0.2919,
          "delta": 0.0019,
          "percent_delta": 0.0066,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.86,
          "after": 0.9139,
          "delta": 0.0539,
          "percent_delta": 0.0627,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.17,
          "after": 0.1835,
          "delta": 0.0135,
          "percent_delta": 0.0794,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.348,
          "after": 0.3539,
          "delta": 0.0059,
          "percent_delta": 0.017,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.419,
          "after": 0.4379,
          "delta": 0.0189,
          "percent_delta": 0.0451,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.44,
          "after": 0.4458,
          "delta": 0.0058,
          "percent_delta": 0.0132,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.511,
          "after": 0.5356,
          "delta": 0.0246,
          "percent_delta": 0.0481,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.581,
          "after": 0.5987,
          "delta": 0.0177,
          "percent_delta": 0.0305,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 5,
        "deboosted_metrics": 0,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.86,
          "after": 0.9139,
          "delta": 0.0539,
          "percent_delta": 0.0627,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 31
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2584,
        "predicted_3B": 0.0012,
        "predicted_AB": 3.1835,
        "predicted_AVG": 0.2905,
        "predicted_BB": 0.2926,
        "predicted_H": 0.9249,
        "predicted_HBP": 0.007,
        "predicted_HR": 0.1862,
        "predicted_OBP": 0.3502,
        "predicted_R": 0.4462,
        "predicted_RBI": 0.4542,
        "predicted_SLG": 0.5479,
        "predicted_SO": 0.5973
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2584,
          "after": 0.2584,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0012,
          "after": 0.0012,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.1835,
          "after": 3.1835,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2869,
          "after": 0.2905,
          "delta": 0.0036,
          "percent_delta": 0.0125,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2919,
          "after": 0.2926,
          "delta": 0.0007,
          "percent_delta": 0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9139,
          "after": 0.9249,
          "delta": 0.011,
          "percent_delta": 0.012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.007,
          "after": 0.007,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1835,
          "after": 0.1862,
          "delta": 0.0027,
          "percent_delta": 0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3539,
          "after": 0.3502,
          "delta": -0.0037,
          "percent_delta": -0.0105,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4379,
          "after": 0.4462,
          "delta": 0.0083,
          "percent_delta": 0.019,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4458,
          "after": 0.4542,
          "delta": 0.0084,
          "percent_delta": 0.0188,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5356,
          "after": 0.5479,
          "delta": 0.0123,
          "percent_delta": 0.023,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5987,
          "after": 0.5973,
          "delta": -0.0014,
          "percent_delta": -0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.5356,
          "after": 0.5479,
          "delta": 0.0123,
          "percent_delta": 0.023,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.18), rates preserved: AVG=0.291 HR/AB=0.058",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2584,
          "after": 0.0,
          "delta": -0.2584,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0012,
          "after": 0.0,
          "delta": -0.0012,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.1835,
          "after": 3.0,
          "delta": -0.1835,
          "percent_delta": -0.0576,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2926,
          "after": 0.0,
          "delta": -0.2926,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9249,
          "after": 1.0,
          "delta": 0.0751,
          "percent_delta": 0.0812,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.007,
          "after": 0.0,
          "delta": -0.007,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1862,
          "after": 0.0,
          "delta": -0.1862,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4542,
          "after": 0.0,
          "delta": -0.4542,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5973,
          "after": 1.0,
          "delta": 0.4027,
          "percent_delta": 0.6742,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.5973,
          "after": 1.0,
          "delta": 0.4027,
          "percent_delta": 0.6742,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4542,
          "after": 0.0,
          "delta": -0.4542,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4462,
          "after": 0.0,
          "delta": -0.4462,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4462,
          "after": 0.0,
          "delta": -0.4462,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2905,
          "after": 0.333,
          "delta": 0.0425,
          "percent_delta": 0.1463,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3502,
          "after": 0.333,
          "delta": -0.0172,
          "percent_delta": -0.0491,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5479,
          "after": 0.333,
          "delta": -0.2149,
          "percent_delta": -0.3922,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2905,
          "after": 0.333,
          "delta": 0.0425,
          "percent_delta": 0.1463,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.5479,
          "after": 0.333,
          "delta": -0.2149,
          "percent_delta": -0.3922,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2905,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3502,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.5479,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2905,
          "delta": -0.0425,
          "percent_delta": -0.1276,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3502,
          "delta": 0.0172,
          "percent_delta": 0.0518,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.5479,
          "delta": 0.2149,
          "percent_delta": 0.6454,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.5479,
          "delta": 0.2149,
          "percent_delta": 0.6454,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2905,
          "delta": -0.0425,
          "percent_delta": -0.1276,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.258,
        "after": 0.0,
        "delta": -0.258,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.13,
        "after": 4.0,
        "delta": 0.87,
        "percent_delta": 0.278,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.275,
        "after": 0.2905,
        "delta": 0.0155,
        "percent_delta": 0.0564,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.29,
        "after": 0.0,
        "delta": -0.29,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.86,
        "after": 1.0,
        "delta": 0.14,
        "percent_delta": 0.1628,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.17,
        "after": 0.0,
        "delta": -0.17,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.348,
        "after": 0.3502,
        "delta": 0.0022,
        "percent_delta": 0.0063,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.419,
        "after": 0.0,
        "delta": -0.419,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.44,
        "after": 0.0,
        "delta": -0.44,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.511,
        "after": 0.5479,
        "delta": 0.0369,
        "percent_delta": 0.0722,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.581,
        "after": 2.0,
        "delta": 1.419,
        "percent_delta": 2.4423,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 5,
      "deboosted_metrics": 5,
      "better_metrics": 4,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.581,
        "after": 2.0,
        "delta": 1.419,
        "percent_delta": 2.4423,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.44,
        "after": 0.0,
        "delta": -0.44,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.258-
predicted_3B0.000-
predicted_AB3.130-
predicted_AVG0.275-
predicted_BB0.290-
predicted_H0.860-
predicted_HR0.170-
predicted_OBP0.348-
predicted_R0.419-
predicted_RBI0.440-
predicted_SLG0.511-
predicted_SO0.581-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2580.000
predicted_3B0.0010.001
predicted_AB3.1830.054
predicted_AVG0.2870.012
predicted_BB0.2920.002
predicted_H0.9140.054
predicted_HBP0.007-
predicted_HR0.1830.013
predicted_OBP0.3540.006
predicted_R0.4380.019
predicted_RBI0.4460.006
predicted_SLG0.5360.025
predicted_SO0.5990.018
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2580.000
predicted_3B0.0010.000
predicted_AB3.1830.000
predicted_AVG0.2900.004
predicted_BB0.2930.001
predicted_H0.9250.011
predicted_HBP0.0070.000
predicted_HR0.1860.003
predicted_OBP0.350-0.004
predicted_R0.4460.008
predicted_RBI0.4540.008
predicted_SLG0.5480.012
predicted_SO0.597-0.001
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.18), rates preserved: AVG=0.291 HR/AB=0.058

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.258
predicted_3B0.000-0.001
predicted_AB3.000-0.183
predicted_AVG0.3330.043
predicted_BB0.000-0.293
predicted_H1.0000.075
predicted_HR0.000-0.186
predicted_OBP0.333-0.017
predicted_R0.000-0.446
predicted_RBI0.000-0.454
predicted_SLG0.333-0.215
predicted_SO1.0000.403
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 31
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0008.0002.0000.0001.0001.0002.0002.0003.0000.47060.52630.76470.47060.05880.05880.11770.1765
last_100.2010-29.00011.0002.0000.0004.0006.0006.0002.0005.0000.37930.41940.86210.37930.13790.20690.06900.1724
season0.6031-95.00024.0008.0000.0005.00014.00013.0009.00018.0000.25260.31430.49470.25260.05260.14740.09470.1895
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2590
predicted_3B0.0030
predicted_AB3.2690
predicted_AVG0.3058
predicted_BB0.2950
predicted_H1.0000
predicted_HBP0.0070
predicted_HR0.2050
predicted_OBP0.3634
predicted_R0.4680
predicted_RBI0.4550
predicted_SLG0.5750
predicted_SO0.6270
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.25800.25900.2584model_form_blend
predicted_3B0.00000.00300.0012model_form_blend
predicted_AB3.13003.26903.1835model_form_blend
predicted_AVG0.27500.30580.2869model_form_blend
predicted_BB0.29000.29500.2919model_form_blend
predicted_H0.86001.00000.9139model_form_blend
predicted_HBP-0.00700.0070form_only
predicted_HR0.17000.20500.1835model_form_blend
predicted_OBP0.34800.36340.3539model_form_blend
predicted_R0.41900.46800.4379model_form_blend
predicted_RBI0.44000.45500.4458model_form_blend
predicted_SLG0.51100.57500.5356model_form_blend
predicted_SO0.58100.62700.5987model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date39
Season rows before report date39
Report year2026
Profile rows used31
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO2
SF0
HBP0
season_avg0.253

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.667
Hitting_BB1
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB2
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedC
gameID20260617_PIT@OAK
game_typefull
mlbID641680
playerID641680
playerNameJonah Heim
posC
startedTrue
startingPositionC
teamOAK
teamID20
game_date2026-06-17
sl_k_percent17.1
sl_bb_percent8.6
sl_woba0.348
sl_xwoba0.307
sl_xba0.246
sl_xslg0.391
sl_sweet_spot_percent34.6
sl_barrel_batted_rate6.4
sl_hard_hit_percent29.5
sl_exit_velocity_avg87.2
sl_launch_angle_avg15.2
sl_whiff_percent20.7
sl_swing_percent46.5
Carlos Cortes (666126) · BATTER · RF · Team OAK
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 164
All-history rows before 20260618: 164
System season_avg: 0.2890
Data season_avg (2026 season-to-date): 0.3370
Diff (system - data): -0.0480
System opponent_avg: 0.3330
System season_avg diverges from 2026 season-to-date by -0.0480. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1530.0000.000Hitting_2B0.1590.000-0.1590.000
predicted_3B0.0170.0000.000Hitting_3B0.0240.000-0.0240.000
predicted_AB2.9324.0003.000Hitting_AB3.3113.0000.6891.000
predicted_AVG0.2320.5000.333Hitting_AVG0.3370.0000.1630.500
predicted_BB0.3560.0000.000Hitting_BB0.4570.000-0.4570.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.2802.0001.000Hitting_H1.1160.0000.8842.000
predicted_HR0.0401.0000.000Hitting_HR0.1520.0000.8481.000
predicted_OBP0.2770.5000.333Hitting_OBP0.4190.0000.0810.500
predicted_R0.2881.0000.000Hitting_R0.3840.0000.6161.000
predicted_RBI0.1903.0000.000Hitting_RBI0.4820.0002.5183.000
predicted_SLG0.3611.2500.333Hitting_SLG0.5380.0000.7121.250
predicted_SO0.3730.0000.000Hitting_SO0.3782.000-0.378-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics11
Boosted Metrics5
Deboosted Metrics6
Better Metrics6
Worse Metrics5
Biggest Boostpredicted_RBI: 0.1900 -> 3.0000 (boost 2.8100, better)
Biggest Deboostpredicted_SO: 0.3730 -> 0.0000 (deboost -0.3730, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend75243predicted_H: 0.2800 -> 0.4413 (boost 0.1613, better)predicted_SLG: 0.3610 -> 0.3540 (deboost -0.0070, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.3540 -> 0.2635 (deboost -0.0905, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling70716-predicted_SO: 0.4563 -> 0.0000 (deboost -0.4563, better)AB rounded to 3 (raw=2.99), rates preserved: AVG=0.149 HR/AB=0.020
5consistency_constraints21111predicted_H: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_R: 0.2905 -> 0.0000 (deboost -0.2905, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.1492 -> 0.3330 (boost 0.1838, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference55050predicted_RBI: 0.0000 -> 3.0000 (boost 3.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.1492 (deboost -0.1838, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "666126",
  "player_name": "Carlos Cortes",
  "position": "RF",
  "team": "OAK",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.153,
        "predicted_3B": 0.017,
        "predicted_AB": 2.932,
        "predicted_AVG": 0.232,
        "predicted_BB": 0.356,
        "predicted_H": 0.28,
        "predicted_HR": 0.04,
        "predicted_OBP": 0.277,
        "predicted_R": 0.288,
        "predicted_RBI": 0.19,
        "predicted_SLG": 0.361,
        "predicted_SO": 0.373
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1324,
        "predicted_3B": 0.0145,
        "predicted_AB": 2.9925,
        "predicted_AVG": 0.2264,
        "predicted_BB": 0.3169,
        "predicted_H": 0.4413,
        "predicted_HBP": 0.085,
        "predicted_HR": 0.0593,
        "predicted_OBP": 0.2842,
        "predicted_R": 0.2851,
        "predicted_RBI": 0.2871,
        "predicted_SLG": 0.354,
        "predicted_SO": 0.4574
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.153,
          "after": 0.1324,
          "delta": -0.0206,
          "percent_delta": -0.1346,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.017,
          "after": 0.0145,
          "delta": -0.0025,
          "percent_delta": -0.1471,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.932,
          "after": 2.9925,
          "delta": 0.0605,
          "percent_delta": 0.0206,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.232,
          "after": 0.2264,
          "delta": -0.0056,
          "percent_delta": -0.0241,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.356,
          "after": 0.3169,
          "delta": -0.0391,
          "percent_delta": -0.1098,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.28,
          "after": 0.4413,
          "delta": 0.1613,
          "percent_delta": 0.5761,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.04,
          "after": 0.0593,
          "delta": 0.0193,
          "percent_delta": 0.4825,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.277,
          "after": 0.2842,
          "delta": 0.0072,
          "percent_delta": 0.026,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.288,
          "after": 0.2851,
          "delta": -0.0029,
          "percent_delta": -0.0101,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.19,
          "after": 0.2871,
          "delta": 0.0971,
          "percent_delta": 0.5111,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.361,
          "after": 0.354,
          "delta": -0.007,
          "percent_delta": -0.0194,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.373,
          "after": 0.4574,
          "delta": 0.0844,
          "percent_delta": 0.2263,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 5,
        "deboosted_metrics": 2,
        "better_metrics": 4,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.28,
          "after": 0.4413,
          "delta": 0.1613,
          "percent_delta": 0.5761,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.361,
          "after": 0.354,
          "delta": -0.007,
          "percent_delta": -0.0194,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 59
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1324,
        "predicted_3B": 0.0145,
        "predicted_AB": 2.9925,
        "predicted_AVG": 0.1492,
        "predicted_BB": 0.3176,
        "predicted_H": 0.4466,
        "predicted_HBP": 0.085,
        "predicted_HR": 0.0602,
        "predicted_OBP": 0.2309,
        "predicted_R": 0.2905,
        "predicted_RBI": 0.2925,
        "predicted_SLG": 0.2635,
        "predicted_SO": 0.4563
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1324,
          "after": 0.1324,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0145,
          "after": 0.0145,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9925,
          "after": 2.9925,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2264,
          "after": 0.1492,
          "delta": -0.0772,
          "percent_delta": -0.341,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3169,
          "after": 0.3176,
          "delta": 0.0007,
          "percent_delta": 0.0022,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.4413,
          "after": 0.4466,
          "delta": 0.0053,
          "percent_delta": 0.012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.085,
          "after": 0.085,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0593,
          "after": 0.0602,
          "delta": 0.0009,
          "percent_delta": 0.0152,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2842,
          "after": 0.2309,
          "delta": -0.0533,
          "percent_delta": -0.1875,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.2851,
          "after": 0.2905,
          "delta": 0.0054,
          "percent_delta": 0.0189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2871,
          "after": 0.2925,
          "delta": 0.0054,
          "percent_delta": 0.0188,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.354,
          "after": 0.2635,
          "delta": -0.0905,
          "percent_delta": -0.2556,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.4574,
          "after": 0.4563,
          "delta": -0.0011,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.354,
          "after": 0.2635,
          "delta": -0.0905,
          "percent_delta": -0.2556,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.99), rates preserved: AVG=0.149 HR/AB=0.020",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1324,
          "after": 0.0,
          "delta": -0.1324,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0145,
          "after": 0.0,
          "delta": -0.0145,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9925,
          "after": 3.0,
          "delta": 0.0075,
          "percent_delta": 0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3176,
          "after": 0.0,
          "delta": -0.3176,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.4466,
          "after": 0.0,
          "delta": -0.4466,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.085,
          "after": 0.0,
          "delta": -0.085,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0602,
          "after": 0.0,
          "delta": -0.0602,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2925,
          "after": 0.0,
          "delta": -0.2925,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.4563,
          "after": 0.0,
          "delta": -0.4563,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 0,
        "deboosted_metrics": 7,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 0.4563,
          "after": 0.0,
          "delta": -0.4563,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.2905,
          "after": 0.0,
          "delta": -0.2905,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.2905,
          "after": 0.0,
          "delta": -0.2905,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1492,
          "after": 0.333,
          "delta": 0.1838,
          "percent_delta": 1.2319,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2309,
          "after": 0.333,
          "delta": 0.1021,
          "percent_delta": 0.4422,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2635,
          "after": 0.333,
          "delta": 0.0695,
          "percent_delta": 0.2638,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1492,
          "after": 0.333,
          "delta": 0.1838,
          "percent_delta": 1.2319,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_R": 1.0,
        "predicted_RBI": 3.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 3.0,
          "delta": 3.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 5,
        "deboosted_metrics": 0,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 3.0,
          "delta": 3.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.1492,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_OBP": 0.2309,
        "predicted_R": 1.0,
        "predicted_RBI": 3.0,
        "predicted_RF": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.2635,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1492,
          "delta": -0.1838,
          "percent_delta": -0.5518,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2309,
          "delta": -0.1021,
          "percent_delta": -0.3067,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.2635,
          "delta": -0.0695,
          "percent_delta": -0.2087,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1492,
          "delta": -0.1838,
          "percent_delta": -0.5518,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.153,
        "after": 0.0,
        "delta": -0.153,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.017,
        "after": 0.0,
        "delta": -0.017,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.932,
        "after": 4.0,
        "delta": 1.068,
        "percent_delta": 0.3643,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.232,
        "after": 0.1492,
        "delta": -0.0828,
        "percent_delta": -0.3569,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.356,
        "after": 0.0,
        "delta": -0.356,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.28,
        "after": 2.0,
        "delta": 1.72,
        "percent_delta": 6.1429,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.04,
        "after": 1.0,
        "delta": 0.96,
        "percent_delta": 24.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.277,
        "after": 0.2309,
        "delta": -0.0461,
        "percent_delta": -0.1664,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.288,
        "after": 1.0,
        "delta": 0.712,
        "percent_delta": 2.4722,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.19,
        "after": 3.0,
        "delta": 2.81,
        "percent_delta": 14.7895,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.361,
        "after": 0.2635,
        "delta": -0.0975,
        "percent_delta": -0.2701,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.373,
        "after": 0.0,
        "delta": -0.373,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 5,
      "deboosted_metrics": 6,
      "better_metrics": 6,
      "worse_metrics": 5,
      "biggest_boost": {
        "metric": "predicted_RBI",
        "before": 0.19,
        "after": 3.0,
        "delta": 2.81,
        "percent_delta": 14.7895,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.373,
        "after": 0.0,
        "delta": -0.373,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.153-
predicted_3B0.017-
predicted_AB2.932-
predicted_AVG0.232-
predicted_BB0.356-
predicted_H0.280-
predicted_HR0.040-
predicted_OBP0.277-
predicted_R0.288-
predicted_RBI0.190-
predicted_SLG0.361-
predicted_SO0.373-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.132-0.021
predicted_3B0.015-0.003
predicted_AB2.9930.061
predicted_AVG0.226-0.006
predicted_BB0.317-0.039
predicted_H0.4410.161
predicted_HBP0.085-
predicted_HR0.0590.019
predicted_OBP0.2840.007
predicted_R0.285-0.003
predicted_RBI0.2870.097
predicted_SLG0.354-0.007
predicted_SO0.4570.084
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1320.000
predicted_3B0.0150.000
predicted_AB2.9930.000
predicted_AVG0.149-0.077
predicted_BB0.3180.001
predicted_H0.4470.005
predicted_HBP0.0850.000
predicted_HR0.0600.001
predicted_OBP0.231-0.053
predicted_R0.2900.005
predicted_RBI0.2920.005
predicted_SLG0.264-0.090
predicted_SO0.456-0.001
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.99), rates preserved: AVG=0.149 HR/AB=0.020

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H0.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO0.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0001.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO0.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.132
predicted_3B0.000-0.015
predicted_AB3.0000.007
predicted_AVG0.3330.184
predicted_BB0.000-0.318
predicted_H1.0000.553
predicted_HR0.000-0.060
predicted_OBP0.3330.102
predicted_R0.000-0.290
predicted_RBI0.000-0.292
predicted_SLG0.3330.070
predicted_SO0.000-0.456
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR1.0001.000
PA4.000-
R1.0001.000
RBI3.0003.000
SB0.0000.000
SF0.0000.000
SO0.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 59
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-15.0001.0000.0000.0000.0003.0001.0000.0005.0000.06670.12500.06670.06670.00000.20000.00000.3333
last_100.2010-30.0004.0000.0000.0001.0004.0002.0002.0006.0000.13330.21210.23330.13330.03330.13330.06670.2000
season0.6059-173.00050.0009.0001.0006.00021.00017.00021.00022.0000.28900.37370.45660.28900.03470.12140.12140.1272
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1030
predicted_3B0.0110
predicted_AB3.0790
predicted_AVG0.2183
predicted_BB0.2610
predicted_H0.6720
predicted_HBP0.0850
predicted_HR0.0870
predicted_OBP0.2945
predicted_R0.2810
predicted_RBI0.4260
predicted_SLG0.3439
predicted_SO0.5780
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.15300.10300.1324model_form_blend
predicted_3B0.01700.01100.0145model_form_blend
predicted_AB2.93203.07902.9925model_form_blend
predicted_AVG0.23200.21830.2264model_form_blend
predicted_BB0.35600.26100.3169model_form_blend
predicted_H0.28000.67200.4413model_form_blend
predicted_HBP-0.08500.0850form_only
predicted_HR0.04000.08700.0593model_form_blend
predicted_OBP0.27700.29450.2842model_form_blend
predicted_R0.28800.28100.2851model_form_blend
predicted_RBI0.19000.42600.2871model_form_blend
predicted_SLG0.36100.34390.3540model_form_blend
predicted_SO0.37300.57800.4574model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date164
Season rows before report date164
Report year2026
Profile rows used59
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H2
2B0
3B0
HR1
R1
RBI3
BB0
SO0
SF0
HBP0
season_avg0.289

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP1
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB0
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260616_PIT@OAK
game_typefull
mlbID666126
playerID666126
playerNameCarlos Cortes
posRF
startedTrue
startingPositionDH
teamOAK
teamID20
game_date2026-06-16
sl_k_percent11.1
sl_bb_percent10.6
sl_woba0.367
sl_xwoba0.365
sl_xba0.29
sl_xslg0.453
sl_sweet_spot_percent35.5
sl_barrel_batted_rate8.7
sl_hard_hit_percent40.4
sl_exit_velocity_avg89.9
sl_launch_angle_avg8.5
sl_whiff_percent19.7
sl_swing_percent43.3
Henry Bolte (703607) · BATTER · CF · Team OAK
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 65
All-history rows before 20260618: 65
System season_avg: 0.3100
Data season_avg (2026 season-to-date): 0.3105
Diff (system - data): -0.0005
System opponent_avg: 0.1540

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1720.0000.000Hitting_2B0.1850.000-0.1850.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.4484.0003.000Hitting_AB3.3694.0000.6310.000
predicted_AVG0.2740.2500.333Hitting_AVG0.3110.250-0.0610.000
predicted_BB0.2070.0000.000Hitting_BB0.2920.000-0.2920.000
predicted_CS-0.0000.000BaseRunning_CS0.1230.000-0.1230.000
predicted_H0.8001.0001.000Hitting_H1.0461.000-0.0460.000
predicted_HR0.1100.0000.000Hitting_HR0.0311.000-0.031-1.000
predicted_OBP0.3380.2500.333Hitting_OBP0.3720.250-0.1220.000
predicted_R0.3791.0000.000Hitting_R0.2771.0000.7230.000
predicted_RBI0.3201.0000.000Hitting_RBI0.3081.0000.6920.000
predicted_SLG0.4310.2500.333Hitting_SLG0.3931.000-0.143-0.750
predicted_SO1.1381.0001.000Hitting_SO0.9691.0000.0310.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics4
Deboosted Metrics7
Better Metrics5
Worse Metrics6
Biggest Boostpredicted_RBI: 0.3200 -> 1.0000 (boost 0.6800, better)
Biggest Deboostpredicted_BB: 0.2070 -> 0.0000 (deboost -0.2070, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend33030predicted_H: 0.8000 -> 0.9016 (boost 0.1016, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3423 -> 0.3003 (deboost -0.0420, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling81726predicted_H: 0.9124 -> 1.0000 (boost 0.0876, better)predicted_AB: 3.4767 -> 3.0000 (deboost -0.4767, worse)AB rounded to 3 (raw=3.48), rates preserved: AVG=0.262 HR/AB=0.034
5consistency_constraints10101-predicted_R: 0.4371 -> 0.0000 (deboost -0.4371, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2624 -> 0.3330 (boost 0.0706, better)predicted_SLG: 0.4133 -> 0.3330 (deboost -0.0803, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference33030predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.4133 (boost 0.0803, better)predicted_AVG: 0.3330 -> 0.2624 (deboost -0.0706, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "703607",
  "player_name": "Henry Bolte",
  "position": "CF",
  "team": "OAK",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.172,
        "predicted_3B": 0.0,
        "predicted_AB": 3.448,
        "predicted_AVG": 0.274,
        "predicted_BB": 0.207,
        "predicted_H": 0.8,
        "predicted_HR": 0.11,
        "predicted_OBP": 0.338,
        "predicted_R": 0.379,
        "predicted_RBI": 0.32,
        "predicted_SLG": 0.431,
        "predicted_SO": 1.138
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1708,
        "predicted_3B": 0.0012,
        "predicted_AB": 3.4767,
        "predicted_AVG": 0.2847,
        "predicted_BB": 0.1876,
        "predicted_H": 0.9016,
        "predicted_HBP": 0.106,
        "predicted_HR": 0.1154,
        "predicted_OBP": 0.3423,
        "predicted_R": 0.429,
        "predicted_RBI": 0.3173,
        "predicted_SLG": 0.441,
        "predicted_SO": 1.1
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.172,
          "after": 0.1708,
          "delta": -0.0012,
          "percent_delta": -0.007,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0012,
          "delta": 0.0012,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.448,
          "after": 3.4767,
          "delta": 0.0287,
          "percent_delta": 0.0083,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.274,
          "after": 0.2847,
          "delta": 0.0107,
          "percent_delta": 0.0391,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.207,
          "after": 0.1876,
          "delta": -0.0194,
          "percent_delta": -0.0937,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8,
          "after": 0.9016,
          "delta": 0.1016,
          "percent_delta": 0.127,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.11,
          "after": 0.1154,
          "delta": 0.0054,
          "percent_delta": 0.0491,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.338,
          "after": 0.3423,
          "delta": 0.0043,
          "percent_delta": 0.0127,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.379,
          "after": 0.429,
          "delta": 0.05,
          "percent_delta": 0.1319,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.32,
          "after": 0.3173,
          "delta": -0.0027,
          "percent_delta": -0.0084,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.431,
          "after": 0.441,
          "delta": 0.01,
          "percent_delta": 0.0232,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.138,
          "after": 1.1,
          "delta": -0.038,
          "percent_delta": -0.0334,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.8,
          "after": 0.9016,
          "delta": 0.1016,
          "percent_delta": 0.127,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 29
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1708,
        "predicted_3B": 0.0012,
        "predicted_AB": 3.4767,
        "predicted_AVG": 0.2624,
        "predicted_BB": 0.188,
        "predicted_H": 0.9124,
        "predicted_HBP": 0.106,
        "predicted_HR": 0.1171,
        "predicted_OBP": 0.3003,
        "predicted_R": 0.4371,
        "predicted_RBI": 0.3233,
        "predicted_SLG": 0.4133,
        "predicted_SO": 1.0975
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1708,
          "after": 0.1708,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0012,
          "after": 0.0012,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4767,
          "after": 3.4767,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2847,
          "after": 0.2624,
          "delta": -0.0223,
          "percent_delta": -0.0783,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1876,
          "after": 0.188,
          "delta": 0.0004,
          "percent_delta": 0.0021,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9016,
          "after": 0.9124,
          "delta": 0.0108,
          "percent_delta": 0.012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.106,
          "after": 0.106,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1154,
          "after": 0.1171,
          "delta": 0.0017,
          "percent_delta": 0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3423,
          "after": 0.3003,
          "delta": -0.042,
          "percent_delta": -0.1227,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.429,
          "after": 0.4371,
          "delta": 0.0081,
          "percent_delta": 0.0189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3173,
          "after": 0.3233,
          "delta": 0.006,
          "percent_delta": 0.0189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.441,
          "after": 0.4133,
          "delta": -0.0277,
          "percent_delta": -0.0628,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1,
          "after": 1.0975,
          "delta": -0.0025,
          "percent_delta": -0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3423,
          "after": 0.3003,
          "delta": -0.042,
          "percent_delta": -0.1227,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.48), rates preserved: AVG=0.262 HR/AB=0.034",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1708,
          "after": 0.0,
          "delta": -0.1708,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0012,
          "after": 0.0,
          "delta": -0.0012,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4767,
          "after": 3.0,
          "delta": -0.4767,
          "percent_delta": -0.1371,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.188,
          "after": 0.0,
          "delta": -0.188,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9124,
          "after": 1.0,
          "delta": 0.0876,
          "percent_delta": 0.096,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.106,
          "after": 0.0,
          "delta": -0.106,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1171,
          "after": 0.0,
          "delta": -0.1171,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3233,
          "after": 0.0,
          "delta": -0.3233,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0975,
          "after": 1.0,
          "delta": -0.0975,
          "percent_delta": -0.0888,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 1,
        "deboosted_metrics": 7,
        "better_metrics": 2,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.9124,
          "after": 1.0,
          "delta": 0.0876,
          "percent_delta": 0.096,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.4767,
          "after": 3.0,
          "delta": -0.4767,
          "percent_delta": -0.1371,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4371,
          "after": 0.0,
          "delta": -0.4371,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4371,
          "after": 0.0,
          "delta": -0.4371,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2624,
          "after": 0.333,
          "delta": 0.0706,
          "percent_delta": 0.2691,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3003,
          "after": 0.333,
          "delta": 0.0327,
          "percent_delta": 0.1089,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4133,
          "after": 0.333,
          "delta": -0.0803,
          "percent_delta": -0.1943,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2624,
          "after": 0.333,
          "delta": 0.0706,
          "percent_delta": 0.2691,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4133,
          "after": 0.333,
          "delta": -0.0803,
          "percent_delta": -0.1943,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2624,
        "predicted_BB": 0.0,
        "predicted_CF": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3003,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4133,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2624,
          "delta": -0.0706,
          "percent_delta": -0.2119,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3003,
          "delta": -0.0327,
          "percent_delta": -0.0983,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4133,
          "delta": 0.0803,
          "percent_delta": 0.2412,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4133,
          "delta": 0.0803,
          "percent_delta": 0.2412,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2624,
          "delta": -0.0706,
          "percent_delta": -0.2119,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.172,
        "after": 0.0,
        "delta": -0.172,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.448,
        "after": 4.0,
        "delta": 0.552,
        "percent_delta": 0.1601,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.274,
        "after": 0.2624,
        "delta": -0.0116,
        "percent_delta": -0.0423,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.207,
        "after": 0.0,
        "delta": -0.207,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.8,
        "after": 1.0,
        "delta": 0.2,
        "percent_delta": 0.25,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.11,
        "after": 0.0,
        "delta": -0.11,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.338,
        "after": 0.3003,
        "delta": -0.0377,
        "percent_delta": -0.1115,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.379,
        "after": 1.0,
        "delta": 0.621,
        "percent_delta": 1.6385,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.32,
        "after": 1.0,
        "delta": 0.68,
        "percent_delta": 2.125,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.431,
        "after": 0.4133,
        "delta": -0.0177,
        "percent_delta": -0.0411,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.138,
        "after": 1.0,
        "delta": -0.138,
        "percent_delta": -0.1213,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 4,
      "deboosted_metrics": 7,
      "better_metrics": 5,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_RBI",
        "before": 0.32,
        "after": 1.0,
        "delta": 0.68,
        "percent_delta": 2.125,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_BB",
        "before": 0.207,
        "after": 0.0,
        "delta": -0.207,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.172-
predicted_3B0.000-
predicted_AB3.448-
predicted_AVG0.274-
predicted_BB0.207-
predicted_H0.800-
predicted_HR0.110-
predicted_OBP0.338-
predicted_R0.379-
predicted_RBI0.320-
predicted_SLG0.431-
predicted_SO1.138-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.171-0.001
predicted_3B0.0010.001
predicted_AB3.4770.029
predicted_AVG0.2850.011
predicted_BB0.188-0.019
predicted_H0.9020.102
predicted_HBP0.106-
predicted_HR0.1150.005
predicted_OBP0.3420.004
predicted_R0.4290.050
predicted_RBI0.317-0.003
predicted_SLG0.4410.010
predicted_SO1.100-0.038
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1710.000
predicted_3B0.0010.000
predicted_AB3.4770.000
predicted_AVG0.262-0.022
predicted_BB0.1880.000
predicted_H0.9120.011
predicted_HBP0.1060.000
predicted_HR0.1170.002
predicted_OBP0.300-0.042
predicted_R0.4370.008
predicted_RBI0.3230.006
predicted_SLG0.413-0.028
predicted_SO1.097-0.003
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.48), rates preserved: AVG=0.262 HR/AB=0.034

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.171
predicted_3B0.000-0.001
predicted_AB3.000-0.477
predicted_AVG0.3330.071
predicted_BB0.000-0.188
predicted_H1.0000.088
predicted_HR0.000-0.117
predicted_OBP0.3330.033
predicted_R0.000-0.437
predicted_RBI0.000-0.323
predicted_SLG0.333-0.080
predicted_SO1.000-0.097
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 29
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0006.0001.0000.0001.0001.0004.0000.0004.0000.35290.35290.58820.35290.05880.05880.00000.2353
last_100.2010-34.00010.0001.0000.0002.0003.0006.0000.00012.0000.29410.33330.50000.29410.05880.08820.00000.3529
season0.6029-100.00031.0005.0000.0002.0008.00011.0006.00033.0000.31000.36940.42000.31000.02000.08000.06000.3300
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1690
predicted_3B0.0030
predicted_AB3.5220
predicted_AVG0.3016
predicted_BB0.1570
predicted_H1.0620
predicted_HBP0.1060
predicted_HR0.1240
predicted_OBP0.3492
predicted_R0.5080
predicted_RBI0.3130
predicted_SLG0.4569
predicted_SO1.0400
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.17200.16900.1708model_form_blend
predicted_3B0.00000.00300.0012model_form_blend
predicted_AB3.44803.52203.4767model_form_blend
predicted_AVG0.27400.30160.2847model_form_blend
predicted_BB0.20700.15700.1876model_form_blend
predicted_H0.80001.06200.9016model_form_blend
predicted_HBP-0.10600.1060form_only
predicted_HR0.11000.12400.1154model_form_blend
predicted_OBP0.33800.34920.3423model_form_blend
predicted_R0.37900.50800.4290model_form_blend
predicted_RBI0.32000.31300.3173model_form_blend
predicted_SLG0.43100.45690.4410model_form_blend
predicted_SO1.13801.04001.1000model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date65
Season rows before report date65
Report year2026
Profile rows used29
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R1
RBI1
BB0
SO1
SF0
HBP0
season_avg0.31

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R1
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB4
Hitting_battingOrder8
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedCF
gameID20260617_PIT@OAK
game_typefull
mlbID703607
playerID703607
playerNameHenry Bolte
posRF
startedTrue
startingPositionCF
teamOAK
teamID20
game_date2026-06-17
sl_k_percent29.2
sl_bb_percent6.2
sl_woba0.358
sl_xwoba0.291
sl_xba0.224
sl_xslg0.34
sl_sweet_spot_percent20.6
sl_barrel_batted_rate6.0
sl_hard_hit_percent50.7
sl_exit_velocity_avg91.7
sl_launch_angle_avg0.2
sl_whiff_percent34.8
sl_swing_percent53.2
Jeff McNeil (643446) · BATTER · 2B · Team OAK
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 203
All-history rows before 20260618: 203
System season_avg: 0.2350
Data season_avg (2026 season-to-date): 0.2614
Diff (system - data): -0.0264
System opponent_avg: 0.2500
System season_avg diverges from 2026 season-to-date by -0.0264. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1360.0000.000Hitting_2B0.1720.000-0.1720.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.2274.0003.000Hitting_AB3.4481.0000.5523.000
predicted_AVG0.2420.5000.333Hitting_AVG0.2610.0000.2390.500
predicted_BB0.3180.0000.000Hitting_BB0.3401.000-0.340-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0390.000-0.0390.000
predicted_H0.7002.0001.000Hitting_H0.9010.0001.0992.000
predicted_HR0.0900.0000.000Hitting_HR0.0340.000-0.0340.000
predicted_OBP0.3110.5000.333Hitting_OBP0.3320.5000.1680.000
predicted_R0.2881.0000.000Hitting_R0.3200.0000.6801.000
predicted_RBI0.4301.0000.000Hitting_RBI0.3050.0000.6951.000
predicted_SB-0.0000.000BaseRunning_SB0.0250.000-0.0250.000
predicted_SLG0.3560.5000.333Hitting_SLG0.3410.0000.1590.500
predicted_SO0.5000.0000.000Hitting_SO0.5020.000-0.5020.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics4
Deboosted Metrics7
Better Metrics5
Worse Metrics6
Biggest Boostpredicted_H: 0.7000 -> 2.0000 (boost 1.3000, better)
Biggest Deboostpredicted_SO: 0.5000 -> 0.0000 (deboost -0.5000, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend31212predicted_R: 0.2880 -> 0.3564 (boost 0.0684, better)predicted_AB: 3.2270 -> 3.1490 (deboost -0.0780, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_AVG: 0.2320 -> 0.2200 (deboost -0.0120, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71625predicted_H: 0.6928 -> 1.0000 (boost 0.3072, better)predicted_SO: 0.4885 -> 0.0000 (deboost -0.4885, better)AB rounded to 3 (raw=3.23), rates preserved: AVG=0.215 HR/AB=0.030
5consistency_constraints10101-predicted_R: 0.3631 -> 0.0000 (deboost -0.3631, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2200 -> 0.3330 (boost 0.1130, better)predicted_SLG: 0.3478 -> 0.3330 (deboost -0.0148, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference44040predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.3478 (boost 0.0148, better)predicted_AVG: 0.3330 -> 0.2200 (deboost -0.1130, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "643446",
  "player_name": "Jeff McNeil",
  "position": "2B",
  "team": "OAK",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.136,
        "predicted_3B": 0.0,
        "predicted_AB": 3.227,
        "predicted_AVG": 0.242,
        "predicted_BB": 0.318,
        "predicted_H": 0.7,
        "predicted_HR": 0.09,
        "predicted_OBP": 0.311,
        "predicted_R": 0.288,
        "predicted_RBI": 0.43,
        "predicted_SLG": 0.356,
        "predicted_SO": 0.5
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1147,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.149,
        "predicted_AVG": 0.232,
        "predicted_BB": 0.3539,
        "predicted_H": 0.6846,
        "predicted_HBP": 0.018,
        "predicted_HR": 0.0942,
        "predicted_OBP": 0.311,
        "predicted_R": 0.3564,
        "predicted_RBI": 0.4392,
        "predicted_SLG": 0.3517,
        "predicted_SO": 0.4896
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.136,
          "after": 0.1147,
          "delta": -0.0213,
          "percent_delta": -0.1566,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.227,
          "after": 3.149,
          "delta": -0.078,
          "percent_delta": -0.0242,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.242,
          "after": 0.232,
          "delta": -0.01,
          "percent_delta": -0.0413,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.318,
          "after": 0.3539,
          "delta": 0.0359,
          "percent_delta": 0.1129,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7,
          "after": 0.6846,
          "delta": -0.0154,
          "percent_delta": -0.022,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.09,
          "after": 0.0942,
          "delta": 0.0042,
          "percent_delta": 0.0467,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.311,
          "after": 0.311,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.288,
          "after": 0.3564,
          "delta": 0.0684,
          "percent_delta": 0.2375,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.43,
          "after": 0.4392,
          "delta": 0.0092,
          "percent_delta": 0.0214,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.356,
          "after": 0.3517,
          "delta": -0.0043,
          "percent_delta": -0.0121,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.5,
          "after": 0.4896,
          "delta": -0.0104,
          "percent_delta": -0.0208,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.288,
          "after": 0.3564,
          "delta": 0.0684,
          "percent_delta": 0.2375,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.227,
          "after": 3.149,
          "delta": -0.078,
          "percent_delta": -0.0242,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 66
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1147,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.149,
        "predicted_AVG": 0.22,
        "predicted_BB": 0.3547,
        "predicted_H": 0.6928,
        "predicted_HBP": 0.018,
        "predicted_HR": 0.0956,
        "predicted_OBP": 0.299,
        "predicted_R": 0.3631,
        "predicted_RBI": 0.4475,
        "predicted_SLG": 0.3478,
        "predicted_SO": 0.4885
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1147,
          "after": 0.1147,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.149,
          "after": 3.149,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.232,
          "after": 0.22,
          "delta": -0.012,
          "percent_delta": -0.0517,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3539,
          "after": 0.3547,
          "delta": 0.0008,
          "percent_delta": 0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6846,
          "after": 0.6928,
          "delta": 0.0082,
          "percent_delta": 0.012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.018,
          "after": 0.018,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0942,
          "after": 0.0956,
          "delta": 0.0014,
          "percent_delta": 0.0149,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.311,
          "after": 0.299,
          "delta": -0.012,
          "percent_delta": -0.0386,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3564,
          "after": 0.3631,
          "delta": 0.0067,
          "percent_delta": 0.0188,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4392,
          "after": 0.4475,
          "delta": 0.0083,
          "percent_delta": 0.0189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3517,
          "after": 0.3478,
          "delta": -0.0039,
          "percent_delta": -0.0111,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.4896,
          "after": 0.4885,
          "delta": -0.0011,
          "percent_delta": -0.0022,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.232,
          "after": 0.22,
          "delta": -0.012,
          "percent_delta": -0.0517,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.23), rates preserved: AVG=0.215 HR/AB=0.030",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1147,
          "after": 0.0,
          "delta": -0.1147,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.149,
          "after": 3.0,
          "delta": -0.149,
          "percent_delta": -0.0473,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3547,
          "after": 0.0,
          "delta": -0.3547,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6928,
          "after": 1.0,
          "delta": 0.3072,
          "percent_delta": 0.4434,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.018,
          "after": 0.0,
          "delta": -0.018,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0956,
          "after": 0.0,
          "delta": -0.0956,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4475,
          "after": 0.0,
          "delta": -0.4475,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.4885,
          "after": 0.0,
          "delta": -0.4885,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.6928,
          "after": 1.0,
          "delta": 0.3072,
          "percent_delta": 0.4434,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 0.4885,
          "after": 0.0,
          "delta": -0.4885,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3631,
          "after": 0.0,
          "delta": -0.3631,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3631,
          "after": 0.0,
          "delta": -0.3631,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.22,
          "after": 0.333,
          "delta": 0.113,
          "percent_delta": 0.5136,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.299,
          "after": 0.333,
          "delta": 0.034,
          "percent_delta": 0.1137,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3478,
          "after": 0.333,
          "delta": -0.0148,
          "percent_delta": -0.0426,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.22,
          "after": 0.333,
          "delta": 0.113,
          "percent_delta": 0.5136,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3478,
          "after": 0.333,
          "delta": -0.0148,
          "percent_delta": -0.0426,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 4,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.22,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.299,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3478,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.22,
          "delta": -0.113,
          "percent_delta": -0.3393,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.299,
          "delta": -0.034,
          "percent_delta": -0.1022,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3478,
          "delta": 0.0148,
          "percent_delta": 0.0443,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3478,
          "delta": 0.0148,
          "percent_delta": 0.0443,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.22,
          "delta": -0.113,
          "percent_delta": -0.3393,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.136,
        "after": 0.0,
        "delta": -0.136,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.227,
        "after": 4.0,
        "delta": 0.773,
        "percent_delta": 0.2395,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.242,
        "after": 0.22,
        "delta": -0.022,
        "percent_delta": -0.0909,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.318,
        "after": 0.0,
        "delta": -0.318,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.7,
        "after": 2.0,
        "delta": 1.3,
        "percent_delta": 1.8571,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.09,
        "after": 0.0,
        "delta": -0.09,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.311,
        "after": 0.299,
        "delta": -0.012,
        "percent_delta": -0.0386,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.288,
        "after": 1.0,
        "delta": 0.712,
        "percent_delta": 2.4722,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.43,
        "after": 1.0,
        "delta": 0.57,
        "percent_delta": 1.3256,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.356,
        "after": 0.3478,
        "delta": -0.0082,
        "percent_delta": -0.023,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.5,
        "after": 0.0,
        "delta": -0.5,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 4,
      "deboosted_metrics": 7,
      "better_metrics": 5,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 0.7,
        "after": 2.0,
        "delta": 1.3,
        "percent_delta": 1.8571,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.5,
        "after": 0.0,
        "delta": -0.5,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.136-
predicted_3B0.000-
predicted_AB3.227-
predicted_AVG0.242-
predicted_BB0.318-
predicted_H0.700-
predicted_HR0.090-
predicted_OBP0.311-
predicted_R0.288-
predicted_RBI0.430-
predicted_SLG0.356-
predicted_SO0.500-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.115-0.021
predicted_3B0.0000.000
predicted_AB3.149-0.078
predicted_AVG0.232-0.010
predicted_BB0.3540.036
predicted_H0.685-0.015
predicted_HBP0.018-
predicted_HR0.0940.004
predicted_OBP0.3110.000
predicted_R0.3560.068
predicted_RBI0.4390.009
predicted_SLG0.352-0.004
predicted_SO0.490-0.010
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1150.000
predicted_3B0.0000.000
predicted_AB3.1490.000
predicted_AVG0.220-0.012
predicted_BB0.3550.001
predicted_H0.6930.008
predicted_HBP0.0180.000
predicted_HR0.0960.001
predicted_OBP0.299-0.012
predicted_R0.3630.007
predicted_RBI0.4480.008
predicted_SLG0.348-0.004
predicted_SO0.488-0.001
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.23), rates preserved: AVG=0.215 HR/AB=0.030

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO0.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO0.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.115
predicted_3B0.000-0.000
predicted_AB3.000-0.149
predicted_AVG0.3330.113
predicted_BB0.000-0.355
predicted_H1.0000.307
predicted_HR0.000-0.096
predicted_OBP0.3330.034
predicted_R0.000-0.363
predicted_RBI0.000-0.448
predicted_SLG0.333-0.015
predicted_SO0.000-0.488
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO0.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 66
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-12.0003.0000.0000.0001.0004.0004.0003.0001.0000.25000.40000.50000.25000.08330.33330.25000.0833
last_100.2010-26.0003.0000.0000.0001.0004.0004.0004.0005.0000.11540.23330.23080.11540.03850.15380.15380.1923
season0.6066-213.00050.0009.0000.0003.00019.00019.00021.00033.0000.23470.30670.31920.23470.01410.08920.09860.1549
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0850
predicted_3B0.0010
predicted_AB3.0400
predicted_AVG0.2180
predicted_BB0.4040
predicted_H0.6630
predicted_HBP0.0180
predicted_HR0.1000
predicted_OBP0.3110
predicted_R0.4520
predicted_RBI0.4520
predicted_SLG0.3457
predicted_SO0.4750
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.13600.08500.1147model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB3.22703.04003.1490model_form_blend
predicted_AVG0.24200.21800.2320model_form_blend
predicted_BB0.31800.40400.3539model_form_blend
predicted_H0.70000.66300.6846model_form_blend
predicted_HBP-0.01800.0180form_only
predicted_HR0.09000.10000.0942model_form_blend
predicted_OBP0.31100.31100.3110model_form_blend
predicted_R0.28800.45200.3564model_form_blend
predicted_RBI0.43000.45200.4392model_form_blend
predicted_SLG0.35600.34570.3517model_form_blend
predicted_SO0.50000.47500.4896model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date203
Season rows before report date203
Report year2026
Profile rows used66
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H2
2B0
3B0
HR0
R1
RBI1
BB0
SO0
SF0
HBP0
season_avg0.235

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB1
Hitting_AVG0.0
Hitting_BB1
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder9
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_PIT@OAK
game_typefull
mlbID643446
playerID643446
playerNameJeff McNeil
pos2B
startedTrue
startingPosition2B
teamOAK
teamID20
game_date2026-06-17
sl_k_percent13.8
sl_bb_percent8.8
sl_woba0.285
sl_xwoba0.308
sl_xba0.27
sl_xslg0.347
sl_sweet_spot_percent38.8
sl_barrel_batted_rate1.1
sl_hard_hit_percent30.6
sl_exit_velocity_avg86.3
sl_launch_angle_avg13.0
sl_whiff_percent17.2
sl_swing_percent54.3
Gage Jump (695611) · PITCHER · Starter · Team OAK
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 4
All-history rows before 20260618: 4

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB2.0002.0002.000Pitching_BB1.5001.0000.5001.000
predicted_ER2.0002.0002.000Pitching_ER2.0003.0000.000-1.000
predicted_H2.0002.0002.000Pitching_H5.0005.000-3.000-3.000
predicted_IP5.2005.2005.200Pitching_InningsPitched5.7755.000-0.5750.200
predicted_SO3.0003.0003.000Pitching_SO4.7506.000-1.750-3.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 5.6667 -> 5.2000 (deboost -0.4667, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_IP: 5.6667 -> 5.2000 (deboost -0.4667, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "695611",
  "player_name": "Gage Jump",
  "position": "Starter",
  "team": "OAK",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 2.0,
        "predicted_H": 2.0,
        "predicted_HR": 1.0,
        "predicted_IP": 5.6667,
        "predicted_SO": 3.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 2.0,
        "predicted_H": 2.0,
        "predicted_HR": 1.0,
        "predicted_IP": 5.2,
        "predicted_R": 2.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.6667,
          "after": 5.2,
          "delta": -0.4667,
          "percent_delta": -0.0824,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 5.6667,
          "after": 5.2,
          "delta": -0.4667,
          "percent_delta": -0.0824,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 5.6667,
        "after": 5.2,
        "delta": -0.4667,
        "percent_delta": -0.0824,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 3.0,
        "after": 3.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 5.6667,
        "after": 5.2,
        "delta": -0.4667,
        "percent_delta": -0.0824,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB2.000-
predicted_ER2.000-
predicted_H2.000-
predicted_HR1.000-
predicted_IP5.667-
predicted_SO3.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 4
Reference playing time: 5.667
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.45423.1008.00020.0006.00019.0000.0003.08571.11430.34290.85710.25710.81430.0000
last_100.35423.1008.00020.0006.00019.0000.0003.08571.11430.34290.85710.25710.81430.0000
season0.20423.1008.00020.0006.00019.0000.0003.08571.11430.34290.85710.25710.81430.0000
Weighted Prediction From Real Data
MetricValue
predicted_BB1.8380
predicted_ER2.5040
predicted_ERA3.8761
predicted_H5.3620
predicted_HR0.4710
predicted_IP5.2000
predicted_SO5.1330
predicted_WHIP1.2381
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB2.00001.83801.9327model_form_blend
predicted_ER2.00002.50402.2093model_form_blend
predicted_ERA-3.87613.8761form_only
predicted_H2.00005.36203.3961model_form_blend
predicted_HR1.00000.47100.7803model_form_blend
predicted_IP5.20005.20005.2000model_form_blend
predicted_SO3.00005.13303.8857model_form_blend
predicted_WHIP-1.23811.2381form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date4
Season rows before report date4
Report year2026
Profile rows used4
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP5.2
H2
R2
ER2
BB2
SO3
HR1
BF22
Pitches86

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced21
Pitching_ER3
Pitching_ERA3.09
Pitching_Flyouts3
Pitching_Groundouts5
Pitching_H5
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched5.0
Pitching_Pitches75
Pitching_R3
Pitching_SO6
Pitching_Strikes52
Pitching_Wild Pitch0
Pitching_pitchingOrder1
allPositionsPlayedP
gameID20260612_COL@OAK
game_typefull
mlbID695611
playerID695611
playerNameGage Jump
posP
startedTrue
startingPositionP
teamOAK
teamID20
game_date2026-06-12
sl_k_percent20.2
sl_bb_percent6.4
sl_woba0.258
sl_xwoba0.285
sl_sweet_spot_percent31.3
sl_barrel_batted_rate3.0
sl_hard_hit_percent29.9
sl_whiff_percent24.2
sl_swing_percent52.9
sl_avg_best_speed77.163600294
sl_avg_hyper_speed93.578788507
Elvis Alvarado (665660) · PITCHER · Middle Reliever · Team OAK
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 15
All-history rows before 20260618: 15

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.4670.000-0.4670.000
predicted_ER0.0000.0000.000Pitching_ER0.6671.000-0.667-1.000
predicted_H2.0002.0002.000Pitching_H0.8671.0001.1331.000
predicted_IP1.1001.1001.100Pitching_InningsPitched0.9271.0000.1730.100
predicted_SO0.0000.0000.000Pitching_SO1.3330.000-1.3330.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 1.3333 -> 1.1000 (deboost -0.2333, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_IP: 1.3333 -> 1.1000 (deboost -0.2333, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "665660",
  "player_name": "Elvis Alvarado",
  "position": "Middle Reliever",
  "team": "OAK",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 2.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.3333,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 2.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.1,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.3333,
          "after": 1.1,
          "delta": -0.2333,
          "percent_delta": -0.175,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 1.3333,
          "after": 1.1,
          "delta": -0.2333,
          "percent_delta": -0.175,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.3333,
        "after": 1.1,
        "delta": -0.2333,
        "percent_delta": -0.175,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 1.3333,
        "after": 1.1,
        "delta": -0.2333,
        "percent_delta": -0.175,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H2.000-
predicted_HR0.000-
predicted_IP1.333-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 15
Reference playing time: 1.333
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4556.1001.0002.0000.00011.0001.0001.42110.31580.15790.31580.00001.73680.1579
last_100.351010.2005.0006.0003.00016.0002.0004.21880.84380.46880.56250.28121.50000.1875
season0.201516.00010.00013.0007.00020.0002.0005.62501.25000.62500.81250.43751.25000.1250
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3710
predicted_ER0.5630
predicted_ERA4.0158
predicted_H0.9980
predicted_HR0.1920
predicted_IP1.1000
predicted_SO1.4870
predicted_WHIP1.0847
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.37100.1453model_form_blend
predicted_ER0.00000.56300.2205model_form_blend
predicted_ERA-4.01584.0158form_only
predicted_H2.00000.99801.6075model_form_blend
predicted_HR0.00000.19200.0752model_form_blend
predicted_IP1.10001.10001.1000model_form_blend
predicted_SO0.00001.48700.5824model_form_blend
predicted_WHIP-1.08471.0847form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date15
Season rows before report date15
Report year2026
Profile rows used15
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.1
H2
R0
ER0
BB0
SO0
HR0
BF6
Pitches21

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER1
Pitching_ERA5.63
Pitching_Flyouts1
Pitching_Groundouts2
Pitching_H1
Pitching_HBP0
Pitching_HR1
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches16
Pitching_R1
Pitching_SO0
Pitching_Strikes9
Pitching_Wild Pitch0
Pitching_decisionL
Pitching_pitchingOrder5
allPositionsPlayedP
gameID20260616_PIT@OAK
game_typefull
mlbID665660
playerID665660
playerNameElvis Alvarado
posP
startedFalse
startingPositionP
teamOAK
teamID20
game_date2026-06-16
sl_k_percent30.3
sl_bb_percent10.6
sl_woba0.319
sl_xwoba0.33
sl_sweet_spot_percent35.9
sl_barrel_batted_rate20.5
sl_hard_hit_percent48.7
sl_whiff_percent33.1
sl_swing_percent53.2
sl_avg_best_speed80.2056055
sl_avg_hyper_speed94.753618462
Hogan Harris (663687) · PITCHER · Middle Reliever · Team OAK
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 37
All-history rows before 20260618: 37

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB0.6491.0000.3510.000
predicted_ER0.0000.0000.000Pitching_ER0.3242.000-0.324-2.000
predicted_H0.0000.0000.000Pitching_H0.7842.000-0.784-2.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.7351.0000.2650.000
predicted_SO2.0002.0002.000Pitching_SO1.0811.0000.9191.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "663687",
  "player_name": "Hogan Harris",
  "position": "Middle Reliever",
  "team": "OAK",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO2.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 37
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.2004.0007.0002.0007.0001.0006.35291.58820.70591.23530.35291.23530.1765
last_100.351010.1004.0008.0003.00013.0001.0003.48391.06450.38710.77420.29031.25810.0968
season0.203734.20012.00029.00024.00040.0003.0003.11541.52880.34620.83650.69231.15390.0865
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3840
predicted_ER0.5130
predicted_ERA4.6200
predicted_H0.9860
predicted_HR0.1370
predicted_IP1.0000
predicted_SO1.1050
predicted_WHIP1.3695
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00000.38400.7091model_form_blend
predicted_ER0.00000.51300.2423model_form_blend
predicted_ERA-4.62004.6200form_only
predicted_H0.00000.98600.4656model_form_blend
predicted_HR0.00000.13700.0647model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO2.00001.10501.5773model_form_blend
predicted_WHIP-1.36951.3695form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date37
Season rows before report date37
Report year2026
Profile rows used37
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB1
SO2
HR0
BF4
Pitches19

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced6
Pitching_ER2
Pitching_ERA3.12
Pitching_Flyouts2
Pitching_Groundouts0
Pitching_H2
Pitching_HBP0
Pitching_HR1
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches25
Pitching_R2
Pitching_SO1
Pitching_Strikes14
Pitching_Wild Pitch0
Pitching_decisionBS
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260616_PIT@OAK
game_typefull
mlbID663687
playerID663687
playerNameHogan Harris
posP
startedFalse
startingPositionP
teamOAK
teamID20
game_date2026-06-16
sl_k_percent25.5
sl_bb_percent15.3
sl_woba0.311
sl_xwoba0.284
sl_sweet_spot_percent26.4
sl_barrel_batted_rate3.3
sl_hard_hit_percent27.5
sl_whiff_percent25.4
sl_swing_percent42.7
sl_avg_best_speed74.321537111
sl_avg_hyper_speed92.291639889
Mark Leiter Jr. (643410) · PITCHER · Middle Reliever · Team OAK
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 32
All-history rows before 20260618: 32

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.3120.000-0.3120.000
predicted_ER2.0002.0002.000Pitching_ER0.5000.0001.5002.000
predicted_H2.0002.0002.000Pitching_H0.9691.0001.0311.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.8251.0000.1750.000
predicted_SO2.0002.0002.000Pitching_SO0.9690.0001.0312.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "643410",
  "player_name": "Mark Leiter Jr.",
  "position": "Middle Reliever",
  "team": "OAK",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 2.0,
        "predicted_H": 2.0,
        "predicted_HR": 1.0,
        "predicted_IP": 1.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 2.0,
        "predicted_H": 2.0,
        "predicted_HR": 1.0,
        "predicted_IP": 1.0,
        "predicted_R": 2.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER2.000-
predicted_H2.000-
predicted_HR1.000-
predicted_IP1.000-
predicted_SO2.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 32
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.1001.0003.0002.0006.0000.0002.07691.15380.23080.69230.46151.38460.0000
last_100.35109.0001.0005.0004.0008.0000.0001.00001.00000.11110.55560.44440.88890.0000
season0.203229.20016.00031.00010.00031.0002.0004.85391.38200.53931.04490.33711.04490.0674
Weighted Prediction From Real Data
MetricValue
predicted_BB0.4000
predicted_ER0.3660
predicted_ERA3.2897
predicted_H0.8340
predicted_HR0.0740
predicted_IP1.0000
predicted_SO1.0490
predicted_WHIP1.2336
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.40000.1824model_form_blend
predicted_ER2.00000.36601.2548model_form_blend
predicted_ERA-3.28973.2897form_only
predicted_H2.00000.83401.4683model_form_blend
predicted_HR1.00000.07400.5777model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO2.00001.04901.5663model_form_blend
predicted_WHIP-1.23361.2336form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date32
Season rows before report date32
Report year2026
Profile rows used32
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H2
R2
ER2
BB0
SO2
HR1
BF5
Pitches19

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER0
Pitching_ERA4.85
Pitching_Flyouts0
Pitching_Groundouts2
Pitching_H1
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches9
Pitching_R0
Pitching_SO0
Pitching_Strikes7
Pitching_Wild Pitch0
Pitching_pitchingOrder4
allPositionsPlayedP
gameID20260616_PIT@OAK
game_typefull
mlbID643410
playerID643410
playerNameMark Leiter Jr.
posP
startedFalse
startingPositionP
teamOAK
teamID20
game_date2026-06-16
sl_k_percent24.4
sl_bb_percent7.9
sl_woba0.309
sl_xwoba0.318
sl_sweet_spot_percent40.0
sl_barrel_batted_rate3.5
sl_hard_hit_percent30.6
sl_whiff_percent27.6
sl_swing_percent46.8
sl_avg_best_speed76.103073953
sl_avg_hyper_speed92.734426941

20260618_MIN@TEX

Prediction Method: enhanced_ml_savant_pitcher_quality
Team Recent Window (Home): 61 games
Team Recent Window (Away): 67 games
Team Recent Period: Latest 10 games from dataset
Enhanced Prediction Target: {"away_runs": 3, "home_runs": 2, "confidence": 0.562596, "home_win_probability": 0.437404, "away_win_probability": 0.562596, "predicted_score_text": "MIN 3 - 2 TEX", "embedded_savant_score_adjustment": {"applied": true, "source": "all_players_stats.csv embedded temporal Savant features", "feature_contract": {"training_grain": "one player-game row after collapsing granular at-bat rows", "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game", "hitter_signals": ["xwoba", "xba", "xslg", "barrel_batted_rate", "hard_hit_percent", "bat_speed", "launch_quality", "walk_rate", "strikeout_rate"], "pitcher_signals": ["xwoba_allowed", "barrel_allowed", "hard_hit_allowed", "whiff_rate", "command_score", "movement_score", "faced_est_woba", "faced_strikeout_rate"]}, "away": {"team": "MIN", "original_runs": 3, "run_delta": -0.0105, "adjusted_runs": 3, "lineup": {"players_used": 9, "total_weight": 33.0, "quality": -0.0019050369219886568, "contact": -0.09911856653627413, "power": 0.14017157474749675, "discipline": -0.14956010782118273, "xwoba": 0.3131515151515151, "recent_xwoba": 0.3131515151515151, "barrel": 9.357575757575756, "ab_hard_contact": -0.07228567676724093, "ab_bat_speed": 70.00832987617672, "ab_strikeout_rate": 0.23677745551414026, "available_players": 9, "top_players": [{"player_id": "621439", "player_name": "Byron Buxton", "position": "CF", "weight": 4.0, "quality": 0.7248942397515747, "contact": 0.5207659996596783, "power": 1.6916596877929677, "discipline": -0.5421092618676946, "xwoba": 0.35, "recent_xwoba": 0.35, "barrel": 18.9, "ab_hard_contact": 0.4131937558593537, "ab_bat_speed": 72.5943463356974, "ab_strikeout_rate": 0.26063829787234044, "available": 1.0}, {"player_id": "807712", "player_name": "Luke Keaschall", "position": "2B", "weight": 4.0, "quality": -0.5536358859812848, "contact": -0.6138261037851036, "power": -0.9814717852946715, "discipline": 0.5302433217189314, "xwoba": 0.289, "recent_xwoba": 0.289, "barrel": 3.0, "ab_hard_contact": -0.5669595154172424, "ab_bat_speed": 66.92657222222222, "ab_strikeout_rate": 0.158, "available": 1.0}, {"player_id": "665019", "player_name": "Kody Clemens", "position": "RF", "weight": 4.0, "quality": 0.45040766133938204, "contact": 0.5935836873555391, "power": 1.014459922468071, "discipline": -0.27188790751694875, "xwoba": 0.337, "recent_xwoba": 0.337, "barrel": 13.3, "ab_hard_contact": 0.8103413065042662, "ab_bat_speed": 68.88689750290361, "ab_strikeout_rate": 0.2534883720930233, "available": 1.0}, {"player_id": "686797", "player_name": "Brooks Lee", "position": "3B", "weight": 4.0, "quality": -0.5284655977432957, "contact": -0.6091598161477406, "power": -0.6547585380228459, "discipline": 0.05794478692039673, "xwoba": 0.277, "recent_xwoba": 0.277, "barrel": 4.7, "ab_hard_contact": -0.4650755223616863, "ab_bat_speed": 68.15155555555556, "ab_strikeout_rate": 0.1830128205128205, "available": 1.0}, {"player_id": "663616", "player_name": "Trevor Larnach", "position": "LF", "weight": 3.0, "quality": -0.1830830518647247, "contact": -0.23073038102087587, "power": -0.48402124732041674, "discipline": 0.48034843205574906, "xwoba": 0.327, "recent_xwoba": 0.327, "barrel": 6.4, "ab_hard_contact": -0.6312820892654805, "ab_bat_speed": 69.1452445799458, "ab_strikeout_rate": 0.20325203252032523, "available": 1.0}]}, "opposing_starter": {"available": true, "player_id": "683004", "player_name": "Jack Leiter", "quality": -0.2237895979301561, "contact": -0.571083777889445, "command": 0.06571428571428573, "movement": 0.4989615872119437, "xwoba": 0.333, "whiff": 25.5, "faced_est_woba": 0.267543125, "faced_launch_speed": 83.82962962962962, "faced_strikeout_rate": 0.23125, "faced_run_exp": 0.007916194341372912}}, "home": {"team": "TEX", "original_runs": 2, "run_delta": -0.0793, "adjusted_runs": 2, "lineup": {"players_used": 9, "total_weight": 32.0, "quality": 0.1785752530174681, "contact": 0.22381057331253112, "power": 0.0683259192665541, "discipline": -0.0238764900974991, "xwoba": 0.32121875, "recent_xwoba": 0.32121875, "barrel": 7.153125, "ab_hard_contact": 0.23185171866441084, "ab_bat_speed": 70.28829576850683, "ab_strikeout_rate": 0.2179256153878592, "available_players": 9, "top_players": [{"player_id": "607043", "player_name": "Brandon Nimmo", "position": "RF", "weight": 4.0, "quality": 1.0651198227354024, "contact": 1.260626667014537, "power": 1.1883240945533373, "discipline": 0.014206035106173263, "xwoba": 0.372, "recent_xwoba": 0.372, "barrel": 10.9, "ab_hard_contact": 0.5081961767810212, "ab_bat_speed": 71.322872491764, "ab_strikeout_rate": 0.19025157232704404, "available": 1.0}, {"player_id": "673962", "player_name": "Josh Jung", "position": "3B", "weight": 4.0, "quality": 0.5351920815395707, "contact": 1.0338126071672773, "power": 0.27425720184251706, "discipline": 0.23417189314750303, "xwoba": 0.352, "recent_xwoba": 0.352, "barrel": 5.1, "ab_hard_contact": 0.6401916558979508, "ab_bat_speed": 70.08618944444444, "ab_strikeout_rate": 0.16699999999999998, "available": 1.0}, {"player_id": "592626", "player_name": "Joc Pederson", "position": "DH", "weight": 3.0, "quality": 0.4050081834526259, "contact": 0.6987491385958485, "power": 0.6018171161206722, "discipline": 0.41233855981416967, "xwoba": 0.353, "recent_xwoba": 0.353, "barrel": 9.8, "ab_hard_contact": 0.011580417651540678, "ab_bat_speed": 70.09404365079365, "ab_strikeout_rate": 0.21433333333333335, "available": 1.0}, {"player_id": "696030", "player_name": "Alejandro Osuna", "position": "CF", "weight": 3.0, "quality": -0.08773271269490311, "contact": 0.13857125286514296, "power": -1.0622819506005767, "discipline": 0.6990257519323962, "xwoba": 0.317, "recent_xwoba": 0.317, "barrel": 0.0, "ab_hard_contact": 0.20312289275036693, "ab_bat_speed": 69.92044642857142, "ab_strikeout_rate": 0.15057471264367814, "available": 1.0}, {"player_id": "669701", "player_name": "Josh Smith", "position": "2B", "weight": 3.0, "quality": -0.17205505467662513, "contact": -0.48273761172161156, "power": -0.7016533828270559, "discipline": 0.6829099883855982, "xwoba": 0.294, "recent_xwoba": 0.294, "barrel": 5.1, "ab_hard_contact": -0.40144860892207707, "ab_bat_speed": 67.37994576719576, "ab_strikeout_rate": 0.17833333333333332, "available": 1.0}]}, "opposing_starter": {"available": true, "player_id": "657746", "player_name": "Joe Ryan", "quality": 0.22280455505590202, "contact": 0.21315471078253914, "command": 0.48485714285714276, "movement": -0.03904504367503603, "xwoba": 0.281, "whiff": 25.2, "faced_est_woba": 0.267543125, "faced_launch_speed": 83.82962962962962, "faced_strikeout_rate": 0.23125, "faced_run_exp": 0.007916194341372912}}}, "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Production confidence governor cap enforced.", "pre_simulation_target": {"away_runs": 3, "home_runs": 2, "predicted_score_text": "MIN 3 - 2 TEX", "confidence": 0.562596, "source": "enhanced_prediction_before_inning_simulation"}, "score_source": "enhanced_prediction.pre_simulation_target", "final_prediction_synced": true, "final_prediction_source": "pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "simulation_score_matches_prediction": false, "simulation_reconciliation": {"pre_simulation_score": {"away_runs": 3, "home_runs": 2, "score_text": "MIN 3 - 2 TEX", "winner": "MIN"}, "final_simulation_score": {"away_runs": 4, "home_runs": 1, "score_text": "MIN 4 - 1 TEX", "winner": "MIN"}, "winner_flipped_by_simulation": false, "away_run_delta": 1, "home_run_delta": -1, "total_run_delta": 0, "score_source": "enhanced_prediction.pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "final_prediction_source": "pre_simulation_target"}}
Factors Considered: Historical team performance, Season-to-date run differential, Recent form (latest 10 games), Head-to-head matchup history, Player-level statistics, Baseball Savant hitter xwOBA/xBA/xSLG/contact quality, Baseball Savant pitcher xwOBA/contact/whiff quality, Recent 10-game performance trends, Pitcher recent form analysis, Team hitting/pitching streaks, Low-score probability modeling, Environmental factors, Home field advantage, Game timing factors, Seasonal adjustments, Machine learning models

Game-Level Prediction Audit

LayerScoreWinnerConfidenceSource or usageSynced or matches
Shipped predictionMIN 3 - 2 TEXMIN0.563enhanced_prediction.pre_simulation_targetTrue
Simulation drawMIN 4 - 1 TEXMIN-advisory_box_score_drawFalse

The shipped score is the pre-simulation model target. The inning simulation is a separate box-score realization used for player lines and stress testing.

Full Prediction Process

Process LayerWhat It DoesStored FieldObserved Value
1. Historical modelStarts from trained game model output.score_evolution.steps[historical_ml]-
2. Variance layerApplies bounded game variance before enhanced corrections.score_evolution.steps[variance_applied]-
3. Recent/team formUses latest team form, recent scoring, prevention, and streak state.enhanced_prediction_analysis.recent_formTrue
4. Season qualityUses season run differential and record quality guardrails.season_run_differential_adjustment, season_quality_guardrailTrue
5. Savant hittersApplies lineup-level Statcast xwOBA, xBA, xSLG, barrel, hard-hit, sweet-spot, EV, launch-angle, whiff, K and BB quality.savant_batter_quality_adjustmentTrue
6. Savant pitchersApplies starter run prevention, strikeout, walk, HR and regression factors from xwOBA, wOBA, contact quality and whiff/command.savant_pitcher_quality_adjustmentTrue
7. Low-score analysisControls unrealistic totals and preserves the pre-sync low-score expected total.low_score_analysis7
8. Probability/governorsApplies win probability calibration, matchup guardrails, margin governor and confidence governor.win_probability_calibration, margin_governor, confidence_governor0.5626
9. Simulation reconciliationKeeps final shipped score and simulation box score auditable side by side.simulation_reconciliationadvisory_box_score_draw
10. Score evolution rendered6 stored score steps are rendered below.game.score_evolution.stepstrue

Score Evolution Steps

StepLayerAway RunsHome RunsConfidenceDescription
1historical_ml6.3984.821-Base ML historical model prediction
2variance_applied65-Random variance applied (0.9-1.1)
3enhanced_prediction320.5626Enhanced ML with recent form, H2H, low-score analysis
4embedded_savant_run_environment32-Target score adjusted by temporal Savant lineup quality versus opposing starter quality
5capped_target32-Capped at max 12 realistic runs
6simulation_result41-Final inning-by-inning simulation result

Governors, Guardrails, and Reconciliation

Low Score Analysis
{
  "low_score_probability": 0.5028049792531122,
  "base_low_score_probability": 0.4149377593360996,
  "low_score_signal_threshold": 0.5,
  "low_score_signal_strength": 0.08786721991701257,
  "confidence": 0.7058800000000001,
  "factors": {
    "environmental": 1.1016000000000001,
    "pitcher_form": 1.1,
    "team_form": 1.0,
    "situational": 1.0,
    "combined": 1.2117600000000002
  },
  "prediction": "low_scoring",
  "expected_total_runs": 5,
  "pre_simulation_expected_total_runs": 7.0,
  "low_score_model_expected_total_runs": 7.0,
  "final_simulation_total_runs": 5,
  "score_source": "enhanced_prediction.pre_simulation_target"
}
Win Probability Calibration
{
  "method": "historical_slate_bin_shrinkage",
  "sample_size": 128,
  "near_bucket_sample_size": 128,
  "medium_bucket_sample_size": 227,
  "wide_bucket_sample_size": 242,
  "global_sample_size": 242,
  "bucket_scope": "near_0.05",
  "sparse_bucket": false,
  "empirical_hit_rate": 0.5547,
  "bayesian_hit_rate": 0.5479,
  "sample_weight": 0.6,
  "prior_strength": 18.0,
  "reliability": 0.8767,
  "confidence_cap": 0.78,
  "raw_pick_probability": 0.602,
  "calibrated_pick_probability": 0.5626,
  "predicted_side": "away"
}
Season Run Differential Adjustment
{
  "applied": false,
  "home": {
    "team": "TEX",
    "games": 73,
    "wins": 35,
    "losses": 38,
    "win_pct": 0.4794520547945205,
    "runs_scored": 289,
    "runs_allowed": 295,
    "run_differential": -6,
    "run_differential_per_game": -0.0821917808219178,
    "available": true
  },
  "away": {
    "team": "MIN",
    "games": 75,
    "wins": 35,
    "losses": 40,
    "win_pct": 0.4666666666666667,
    "runs_scored": 354,
    "runs_allowed": 384,
    "run_differential": -30,
    "run_differential_per_game": -0.4,
    "available": true
  },
  "run_differential_edge_per_game": 0.3178,
  "win_pct_edge": 0.0128,
  "quality_edge": 0.337,
  "margin_adjustment": 0.0,
  "reason": "season quality edge below action threshold"
}
Matchup Recency Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "predicted_team": "MIN",
    "guardrail_predicted_team": "MIN",
    "guardrail_opponent_team": null,
    "output_pre_simulation_winner": "MIN",
    "output_opponent_team": "TEX",
    "final_score_winner": "MIN",
    "pre_simulation_winner": "MIN",
    "winner_flipped_by_simulation": false
  },
  "final_prediction_sync": {
    "pre_simulation_score": {
      "away_runs": 3,
      "home_runs": 2,
      "score_text": "MIN 3 - 2 TEX",
      "winner": "MIN"
    },
    "final_simulation_score": {
      "away_runs": 4,
      "home_runs": 1,
      "score_text": "MIN 4 - 1 TEX",
      "winner": "MIN"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": 1,
    "home_run_delta": -1,
    "total_run_delta": 0,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}
Season Quality Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "home": {
      "team": "TEX",
      "games": 73,
      "wins": 35,
      "losses": 38,
      "win_pct": 0.4794520547945205,
      "runs_scored": 289,
      "runs_allowed": 295,
      "run_differential": -6,
      "run_differential_per_game": -0.0821917808219178,
      "available": true
    },
    "away": {
      "team": "MIN",
      "games": 75,
      "wins": 35,
      "losses": 40,
      "win_pct": 0.4666666666666667,
      "runs_scored": 354,
      "runs_allowed": 384,
      "run_differential": -30,
      "run_differential_per_game": -0.4,
      "available": true
    }
  }
}
Margin Governor
{
  "applied": false,
  "raw_margin": -1.0962,
  "final_margin": -1.0962,
  "margin_cap": 1.5,
  "season_quality_edge": 0.337,
  "reason": "raw target margin within supported range"
}
Confidence Governor
{
  "applied": false,
  "raw_confidence": 0.562596,
  "final_confidence": 0.562596,
  "confidence_cap": 0.66,
  "score_gap": 1.0962,
  "calibration_sample_size": 128,
  "calibration_empirical_hit_rate": 0.5547,
  "calibration_bayesian_hit_rate": 0.5479,
  "calibration_sparse_bucket": false,
  "season_quality_edge": 0.337,
  "reasons": [
    "unvalidated probabilities are capped for production display",
    "projected score gap is close",
    "local calibration sample has at least 30 games",
    "local calibration sample has at least 60 games",
    "win-probability calibration cap enforced"
  ]
}
Simulation Reconciliation
{
  "pre_simulation_score": {
    "away_runs": 3,
    "home_runs": 2,
    "score_text": "MIN 3 - 2 TEX",
    "winner": "MIN"
  },
  "final_simulation_score": {
    "away_runs": 4,
    "home_runs": 1,
    "score_text": "MIN 4 - 1 TEX",
    "winner": "MIN"
  },
  "winner_flipped_by_simulation": false,
  "away_run_delta": 1,
  "home_run_delta": -1,
  "total_run_delta": 0,
  "score_source": "enhanced_prediction.pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "final_prediction_source": "pre_simulation_target"
}
Enhanced Prediction Target
{
  "away_runs": 3,
  "home_runs": 2,
  "confidence": 0.562596,
  "home_win_probability": 0.437404,
  "away_win_probability": 0.562596,
  "predicted_score_text": "MIN 3 - 2 TEX",
  "embedded_savant_score_adjustment": {
    "applied": true,
    "source": "all_players_stats.csv embedded temporal Savant features",
    "feature_contract": {
      "training_grain": "one player-game row after collapsing granular at-bat rows",
      "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game",
      "hitter_signals": [
        "xwoba",
        "xba",
        "xslg",
        "barrel_batted_rate",
        "hard_hit_percent",
        "bat_speed",
        "launch_quality",
        "walk_rate",
        "strikeout_rate"
      ],
      "pitcher_signals": [
        "xwoba_allowed",
        "barrel_allowed",
        "hard_hit_allowed",
        "whiff_rate",
        "command_score",
        "movement_score",
        "faced_est_woba",
        "faced_strikeout_rate"
      ]
    },
    "away": {
      "team": "MIN",
      "original_runs": 3,
      "run_delta": -0.0105,
      "adjusted_runs": 3,
      "lineup": {
        "players_used": 9,
        "total_weight": 33.0,
        "quality": -0.0019050369219886568,
        "contact": -0.09911856653627413,
        "power": 0.14017157474749675,
        "discipline": -0.14956010782118273,
        "xwoba": 0.3131515151515151,
        "recent_xwoba": 0.3131515151515151,
        "barrel": 9.357575757575756,
        "ab_hard_contact": -0.07228567676724093,
        "ab_bat_speed": 70.00832987617672,
        "ab_strikeout_rate": 0.23677745551414026,
        "available_players": 9,
        "top_players": [
          {
            "player_id": "621439",
            "player_name": "Byron Buxton",
            "position": "CF",
            "weight": 4.0,
            "quality": 0.7248942397515747,
            "contact": 0.5207659996596783,
            "power": 1.6916596877929677,
            "discipline": -0.5421092618676946,
            "xwoba": 0.35,
            "recent_xwoba": 0.35,
            "barrel": 18.9,
            "ab_hard_contact": 0.4131937558593537,
            "ab_bat_speed": 72.5943463356974,
            "ab_strikeout_rate": 0.26063829787234044,
            "available": 1.0
          },
          {
            "player_id": "807712",
            "player_name": "Luke Keaschall",
            "position": "2B",
            "weight": 4.0,
            "quality": -0.5536358859812848,
            "contact": -0.6138261037851036,
            "power": -0.9814717852946715,
            "discipline": 0.5302433217189314,
            "xwoba": 0.289,
            "recent_xwoba": 0.289,
            "barrel": 3.0,
            "ab_hard_contact": -0.5669595154172424,
            "ab_bat_speed": 66.92657222222222,
            "ab_strikeout_rate": 0.158,
            "available": 1.0
          },
          {
            "player_id": "665019",
            "player_name": "Kody Clemens",
            "position": "RF",
            "weight": 4.0,
            "quality": 0.45040766133938204,
            "contact": 0.5935836873555391,
            "power": 1.014459922468071,
            "discipline": -0.27188790751694875,
            "xwoba": 0.337,
            "recent_xwoba": 0.337,
            "barrel": 13.3,
            "ab_hard_contact": 0.8103413065042662,
            "ab_bat_speed": 68.88689750290361,
            "ab_strikeout_rate": 0.2534883720930233,
            "available": 1.0
          },
          {
            "player_id": "686797",
            "player_name": "Brooks Lee",
            "position": "3B",
            "weight": 4.0,
            "quality": -0.5284655977432957,
            "contact": -0.6091598161477406,
            "power": -0.6547585380228459,
            "discipline": 0.05794478692039673,
            "xwoba": 0.277,
            "recent_xwoba": 0.277,
            "barrel": 4.7,
            "ab_hard_contact": -0.4650755223616863,
            "ab_bat_speed": 68.15155555555556,
            "ab_strikeout_rate": 0.1830128205128205,
            "available": 1.0
          },
          {
            "player_id": "663616",
            "player_name": "Trevor Larnach",
            "position": "LF",
            "weight": 3.0,
            "quality": -0.1830830518647247,
            "contact": -0.23073038102087587,
            "power": -0.48402124732041674,
            "discipline": 0.48034843205574906,
            "xwoba": 0.327,
            "recent_xwoba": 0.327,
            "barrel": 6.4,
            "ab_hard_contact": -0.6312820892654805,
            "ab_bat_speed": 69.1452445799458,
            "ab_strikeout_rate": 0.20325203252032523,
            "available": 1.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "683004",
        "player_name": "Jack Leiter",
        "quality": -0.2237895979301561,
        "contact": -0.571083777889445,
        "command": 0.06571428571428573,
        "movement": 0.4989615872119437,
        "xwoba": 0.333,
        "whiff": 25.5,
        "faced_est_woba": 0.267543125,
        "faced_launch_speed": 83.82962962962962,
        "faced_strikeout_rate": 0.23125,
        "faced_run_exp": 0.007916194341372912
      }
    },
    "home": {
      "team": "TEX",
      "original_runs": 2,
      "run_delta": -0.0793,
      "adjusted_runs": 2,
      "lineup": {
        "players_used": 9,
        "total_weight": 32.0,
        "quality": 0.1785752530174681,
        "contact": 0.22381057331253112,
        "power": 0.0683259192665541,
        "discipline": -0.0238764900974991,
        "xwoba": 0.32121875,
        "recent_xwoba": 0.32121875,
        "barrel": 7.153125,
        "ab_hard_contact": 0.23185171866441084,
        "ab_bat_speed": 70.28829576850683,
        "ab_strikeout_rate": 0.2179256153878592,
        "available_players": 9,
        "top_players": [
          {
            "player_id": "607043",
            "player_name": "Brandon Nimmo",
            "position": "RF",
            "weight": 4.0,
            "quality": 1.0651198227354024,
            "contact": 1.260626667014537,
            "power": 1.1883240945533373,
            "discipline": 0.014206035106173263,
            "xwoba": 0.372,
            "recent_xwoba": 0.372,
            "barrel": 10.9,
            "ab_hard_contact": 0.5081961767810212,
            "ab_bat_speed": 71.322872491764,
            "ab_strikeout_rate": 0.19025157232704404,
            "available": 1.0
          },
          {
            "player_id": "673962",
            "player_name": "Josh Jung",
            "position": "3B",
            "weight": 4.0,
            "quality": 0.5351920815395707,
            "contact": 1.0338126071672773,
            "power": 0.27425720184251706,
            "discipline": 0.23417189314750303,
            "xwoba": 0.352,
            "recent_xwoba": 0.352,
            "barrel": 5.1,
            "ab_hard_contact": 0.6401916558979508,
            "ab_bat_speed": 70.08618944444444,
            "ab_strikeout_rate": 0.16699999999999998,
            "available": 1.0
          },
          {
            "player_id": "592626",
            "player_name": "Joc Pederson",
            "position": "DH",
            "weight": 3.0,
            "quality": 0.4050081834526259,
            "contact": 0.6987491385958485,
            "power": 0.6018171161206722,
            "discipline": 0.41233855981416967,
            "xwoba": 0.353,
            "recent_xwoba": 0.353,
            "barrel": 9.8,
            "ab_hard_contact": 0.011580417651540678,
            "ab_bat_speed": 70.09404365079365,
            "ab_strikeout_rate": 0.21433333333333335,
            "available": 1.0
          },
          {
            "player_id": "696030",
            "player_name": "Alejandro Osuna",
            "position": "CF",
            "weight": 3.0,
            "quality": -0.08773271269490311,
            "contact": 0.13857125286514296,
            "power": -1.0622819506005767,
            "discipline": 0.6990257519323962,
            "xwoba": 0.317,
            "recent_xwoba": 0.317,
            "barrel": 0.0,
            "ab_hard_contact": 0.20312289275036693,
            "ab_bat_speed": 69.92044642857142,
            "ab_strikeout_rate": 0.15057471264367814,
            "available": 1.0
          },
          {
            "player_id": "669701",
            "player_name": "Josh Smith",
            "position": "2B",
            "weight": 3.0,
            "quality": -0.17205505467662513,
            "contact": -0.48273761172161156,
            "power": -0.7016533828270559,
            "discipline": 0.6829099883855982,
            "xwoba": 0.294,
            "recent_xwoba": 0.294,
            "barrel": 5.1,
            "ab_hard_contact": -0.40144860892207707,
            "ab_bat_speed": 67.37994576719576,
            "ab_strikeout_rate": 0.17833333333333332,
            "available": 1.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "657746",
        "player_name": "Joe Ryan",
        "quality": 0.22280455505590202,
        "contact": 0.21315471078253914,
        "command": 0.48485714285714276,
        "movement": -0.03904504367503603,
        "xwoba": 0.281,
        "whiff": 25.2,
        "faced_est_woba": 0.267543125,
        "faced_launch_speed": 83.82962962962962,
        "faced_strikeout_rate": 0.23125,
        "faced_run_exp": 0.007916194341372912
      }
    }
  },
  "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Production confidence governor cap enforced.",
  "pre_simulation_target": {
    "away_runs": 3,
    "home_runs": 2,
    "predicted_score_text": "MIN 3 - 2 TEX",
    "confidence": 0.562596,
    "source": "enhanced_prediction_before_inning_simulation"
  },
  "score_source": "enhanced_prediction.pre_simulation_target",
  "final_prediction_synced": true,
  "final_prediction_source": "pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "simulation_score_matches_prediction": false,
  "simulation_reconciliation": {
    "pre_simulation_score": {
      "away_runs": 3,
      "home_runs": 2,
      "score_text": "MIN 3 - 2 TEX",
      "winner": "MIN"
    },
    "final_simulation_score": {
      "away_runs": 4,
      "home_runs": 1,
      "score_text": "MIN 4 - 1 TEX",
      "winner": "MIN"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": 1,
    "home_run_delta": -1,
    "total_run_delta": 0,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}

Savant Batter Quality

Source: data/all_players_stats.csv embedded Savant hitter features. It adjusts team offense through expected production and contact quality, then records coverage so missing hitters are visible.

TeamAppliedOffense FactorRaw Avg FactorCoverage WeightCoveredMissing
Away MINTrue1.01151.0115190
Home TEXTrue1.02271.0227190

Away Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
CFByron Buxton201.07020.9358negative_batter_regression0.35000.24500.515018.9049.7091.1021.1031.1026.107.40-1.3429
LFTrevor Larnach1891.00390.0522neutral0.32700.24800.37206.403086.3013.802719.8012.70-0.4571
1BRoyce Lewis2691.00200.0267neutral0.30000.21400.365012.1041.4088.6016.603527.309.900.1429
RFKody Clemens1081.04190.5584neutral0.33700.25600.456013.304492.5016.5024.4021.406.70-0.3714
DHJosh Bell3861.02690.3591neutral0.31200.24500.417010.2042.1089.5012.7025.5023.506.700.3429
3BBrooks Lee1950.9577-0.5645negative_batter_regression0.27700.22600.34104.7031.1087.8013.5021.1016.206.80-1
CVictor Caratini3811.03450.4602positive_batter_regression0.33900.25100.39706.8039.4089.1011.6021.2019.409.201.4857
SSTristan Gray5140.9990-0.0127neutral0.29200.23900.36606.8041.6089.4014.8034305.700.0857
2BLuke Keaschall2790.9671-0.4392neutral0.28900.22800.3350329.6084.801716.3015.909-0.2000

Home Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
DHJoc Pederson1461.04490.5982neutral0.35300.25700.42809.8047.6091.6014.9029.1019.7012.800.0571
3BJosh Jung831.05660.7551neutral0.35200.29800.44505.1045.2089.7011.7018.40167.30-0.1143
RFBrandon Nimmo901.11211.4949positive_batter_regression0.37200.28500.503010.9052.6092.2011.2022.8020.707.901.3429
LFWyatt Langford1440.9890-0.1473neutral0.28200.23600.36706.4035.1088.8014.4023.3022.305.40-0.2000
2BJosh Smith4780.9940-0.0797positive_batter_regression0.29400.22100.32305.1033.3087.5018.4022.3017.7012.400.9143
SSEzequiel Duran720.9955-0.0606neutral0.30400.25700.36505.8037.2089.6010.6029.5025.607.30-0.7429
1BJake Burger861.01140.1515neutral0.30500.24000.40209.6046.6089.9011.4035.2026.507.30-0.4857
CFAlejandro Osuna2750.9958-0.0557neutral0.31700.25900.3100032.60883.2016.30149.900.5143
CKyle Higashioka1981.00470.0622neutral0.30900.23700.38201137.808815.5029.2025.809.40-0.1429
Raw Savant Batter Quality JSON
{
  "home": {
    "applied": true,
    "offense_factor": 1.0227,
    "raw_average_factor": 1.0227,
    "team_espn_average_rank": 174.67,
    "coverage_weight": 1.0,
    "covered_batters": 9,
    "missing_batters": 0,
    "players": [
      {
        "position": "DH",
        "player_id": "592626",
        "player_name": "Joc Pederson",
        "offense_factor": 1.0449,
        "quality_score": 0.5982,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "592626",
          "espn_id": 31392,
          "player_name": "Joc Pederson",
          "team": "TEX",
          "role": "batter",
          "espn_rank": 146,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 146,
            "gp_value": 68.0,
            "gp_rank": 104,
            "ab_value": 183.0,
            "ab_rank": 182,
            "r_value": 27.0,
            "r_rank": 147,
            "h_value": 45.0,
            "h_rank": 177,
            "avg_value": 0.2459016,
            "avg_rank": null,
            "2b_value": 7.0,
            "2b_rank": 206,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 9.0,
            "hr_rank": 84,
            "rbi_value": 25.0,
            "rbi_rank": 161,
            "tb_value": 83.0,
            "tb_rank": 669,
            "bb_value": 28.0,
            "bb_rank": 69,
            "so_value": 43.0,
            "so_rank": 171,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3502304,
            "obp_rank": "-",
            "slg_value": 0.4535519,
            "slg_rank": "-",
            "ops_value": 0.8037823,
            "ops_rank": null,
            "war_value": 0.89,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 155.0,
          "k_percent": 19.7,
          "bb_percent": 12.8,
          "woba": 0.351,
          "xwoba": 0.353,
          "xba": 0.257,
          "xslg": 0.428,
          "sweet_spot_percent": 32.9,
          "barrel_batted_rate": 9.8,
          "hard_hit_percent": 47.6,
          "exit_velocity_avg": 91.6,
          "launch_angle_avg": 14.9,
          "whiff_percent": 29.1,
          "swing_percent": 44.5
        },
        "components": {
          "expected_quality": 0.9781,
          "regression_edge": 0.0571,
          "xwoba_edge": 1.4,
          "xba_edge": 0.5286,
          "xslg_edge": 0.8,
          "barrel_edge": 0.6667,
          "hard_hit_edge": 1.3,
          "exit_velocity_edge": 1.12,
          "sweet_spot_edge": -0.0667,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "3B",
        "player_id": "673962",
        "player_name": "Josh Jung",
        "offense_factor": 1.0566,
        "quality_score": 0.7551,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "673962",
          "espn_id": 42437,
          "player_name": "Josh Jung",
          "team": "TEX",
          "role": "batter",
          "espn_rank": 83,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 83,
            "gp_value": 68.0,
            "gp_rank": 104,
            "ab_value": 261.0,
            "ab_rank": 65,
            "r_value": 32.0,
            "r_rank": 99,
            "h_value": 78.0,
            "h_rank": 16,
            "avg_value": 0.2988505,
            "avg_rank": 9.0,
            "2b_value": 16.0,
            "2b_rank": 17,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 8.0,
            "hr_rank": 98,
            "rbi_value": 30.0,
            "rbi_rank": 113,
            "tb_value": 118.0,
            "tb_rank": 715,
            "bb_value": 21.0,
            "bb_rank": 138,
            "so_value": 46.0,
            "so_rank": 151,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3576388,
            "obp_rank": "43",
            "slg_value": 0.4521072,
            "slg_rank": "54",
            "ops_value": 0.809746,
            "ops_rank": 97.0,
            "war_value": 1.44,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 203.0,
          "k_percent": 16.0,
          "bb_percent": 7.3,
          "woba": 0.356,
          "xwoba": 0.352,
          "xba": 0.298,
          "xslg": 0.445,
          "sweet_spot_percent": 39.6,
          "barrel_batted_rate": 5.1,
          "hard_hit_percent": 45.2,
          "exit_velocity_avg": 89.7,
          "launch_angle_avg": 11.7,
          "whiff_percent": 18.4,
          "swing_percent": 47.2
        },
        "components": {
          "expected_quality": 0.9701,
          "regression_edge": -0.1143,
          "xwoba_edge": 1.3714,
          "xba_edge": 1.7,
          "xslg_edge": 1.0429,
          "barrel_edge": -0.3778,
          "hard_hit_edge": 0.9571,
          "exit_velocity_edge": 0.36,
          "sweet_spot_edge": 1.05,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "RF",
        "player_id": "607043",
        "player_name": "Brandon Nimmo",
        "offense_factor": 1.1121,
        "quality_score": 1.4949,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "607043",
          "espn_id": 32159,
          "player_name": "Brandon Nimmo",
          "team": "TEX",
          "role": "batter",
          "espn_rank": 90,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 90,
            "gp_value": 71.0,
            "gp_rank": 49,
            "ab_value": 272.0,
            "ab_rank": 34,
            "r_value": 28.0,
            "r_rank": 139,
            "h_value": 70.0,
            "h_rank": 50,
            "avg_value": 0.2573529,
            "avg_rank": 72.0,
            "2b_value": 16.0,
            "2b_rank": 17,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 25.0,
            "rbi_rank": 161,
            "tb_value": 111.0,
            "tb_rank": 458,
            "bb_value": 24.0,
            "bb_rank": 100,
            "so_value": 63.0,
            "so_rank": 73,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.3289473,
            "obp_rank": "89",
            "slg_value": 0.4080882,
            "slg_rank": "93",
            "ops_value": 0.7370355,
            "ops_rank": 182.0,
            "war_value": 1.35,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 231.0,
          "k_percent": 20.7,
          "bb_percent": 7.9,
          "woba": 0.325,
          "xwoba": 0.372,
          "xba": 0.285,
          "xslg": 0.503,
          "sweet_spot_percent": 34.6,
          "barrel_batted_rate": 10.9,
          "hard_hit_percent": 52.6,
          "exit_velocity_avg": 92.2,
          "launch_angle_avg": 11.2,
          "whiff_percent": 22.8,
          "swing_percent": 49.3
        },
        "components": {
          "expected_quality": 1.5196,
          "regression_edge": 1.3429,
          "xwoba_edge": 1.9429,
          "xba_edge": 1.3286,
          "xslg_edge": 1.8714,
          "barrel_edge": 0.9111,
          "hard_hit_edge": 2.0143,
          "exit_velocity_edge": 1.36,
          "sweet_spot_edge": 0.2167,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "LF",
        "player_id": "694671",
        "player_name": "Wyatt Langford",
        "offense_factor": 0.989,
        "quality_score": -0.1473,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "694671",
          "espn_id": 4719324,
          "player_name": "Wyatt Langford",
          "team": "TEX",
          "role": "batter",
          "espn_rank": 144,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 144,
            "gp_value": 31.0,
            "gp_rank": 353,
            "ab_value": 123.0,
            "ab_rank": 273,
            "r_value": 16.0,
            "r_rank": 254,
            "h_value": 29.0,
            "h_rank": 269,
            "avg_value": 0.2357723,
            "avg_rank": null,
            "2b_value": 5.0,
            "2b_rank": 259,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 3.0,
            "hr_rank": 243,
            "rbi_value": 8.0,
            "rbi_rank": 346,
            "tb_value": 47.0,
            "tb_rank": 1291,
            "bb_value": 7.0,
            "bb_rank": 333,
            "so_value": 29.0,
            "so_rank": 277,
            "sb_value": 4.0,
            "sb_rank": 124,
            "obp_value": 0.276923,
            "obp_rank": "-",
            "slg_value": 0.3821138,
            "slg_rank": "-",
            "ops_value": 0.6590368,
            "ops_rank": null,
            "war_value": 0.9,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 84.0,
          "k_percent": 22.3,
          "bb_percent": 5.4,
          "woba": 0.289,
          "xwoba": 0.282,
          "xba": 0.236,
          "xslg": 0.367,
          "sweet_spot_percent": 27.7,
          "barrel_batted_rate": 6.4,
          "hard_hit_percent": 35.1,
          "exit_velocity_avg": 88.8,
          "launch_angle_avg": 14.4,
          "whiff_percent": 23.3,
          "swing_percent": 47.3
        },
        "components": {
          "expected_quality": -0.3481,
          "regression_edge": -0.2,
          "xwoba_edge": -0.6286,
          "xba_edge": -0.0714,
          "xslg_edge": -0.0714,
          "barrel_edge": -0.0889,
          "hard_hit_edge": -0.4857,
          "exit_velocity_edge": 0.0,
          "sweet_spot_edge": -0.9333,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "2B",
        "player_id": "669701",
        "player_name": "Josh Smith",
        "offense_factor": 0.994,
        "quality_score": -0.0797,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "669701",
          "espn_id": 42884,
          "player_name": "Josh Smith",
          "team": "TEX",
          "role": "batter",
          "espn_rank": 478,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 478,
            "gp_value": 33.0,
            "gp_rank": 338,
            "ab_value": 97.0,
            "ab_rank": 328,
            "r_value": 6.0,
            "r_rank": 398,
            "h_value": 21.0,
            "h_rank": 328,
            "avg_value": 0.2164948,
            "avg_rank": null,
            "2b_value": 2.0,
            "2b_rank": 387,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 0.0,
            "hr_rank": 441,
            "rbi_value": 6.0,
            "rbi_rank": 383,
            "tb_value": 23.0,
            "tb_rank": 2426,
            "bb_value": 14.0,
            "bb_rank": 215,
            "so_value": 20.0,
            "so_rank": 352,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.318584,
            "obp_rank": "-",
            "slg_value": 0.2371134,
            "slg_rank": "-",
            "ops_value": 0.5556974,
            "ops_rank": null,
            "war_value": -0.29,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 107.0,
          "k_percent": 17.7,
          "bb_percent": 12.4,
          "woba": 0.262,
          "xwoba": 0.294,
          "xba": 0.221,
          "xslg": 0.323,
          "sweet_spot_percent": 35.9,
          "barrel_batted_rate": 5.1,
          "hard_hit_percent": 33.3,
          "exit_velocity_avg": 87.5,
          "launch_angle_avg": 18.4,
          "whiff_percent": 22.3,
          "swing_percent": 47.8
        },
        "components": {
          "expected_quality": -0.3394,
          "regression_edge": 0.9143,
          "xwoba_edge": -0.2857,
          "xba_edge": -0.5,
          "xslg_edge": -0.7,
          "barrel_edge": -0.3778,
          "hard_hit_edge": -0.7429,
          "exit_velocity_edge": -0.52,
          "sweet_spot_edge": 0.4333,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "SS",
        "player_id": "677649",
        "player_name": "Ezequiel Duran",
        "offense_factor": 0.9955,
        "quality_score": -0.0606,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "677649",
          "espn_id": 42457,
          "player_name": "Ezequiel Duran",
          "team": "TEX",
          "role": "batter",
          "espn_rank": 72,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 72,
            "gp_value": 64.0,
            "gp_rank": 146,
            "ab_value": 213.0,
            "ab_rank": 138,
            "r_value": 29.0,
            "r_rank": 128,
            "h_value": 59.0,
            "h_rank": 103,
            "avg_value": 0.2769953,
            "avg_rank": 43.0,
            "2b_value": 15.0,
            "2b_rank": 27,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 4.0,
            "hr_rank": 203,
            "rbi_value": 36.0,
            "rbi_rank": 63,
            "tb_value": 90.0,
            "tb_rank": 773,
            "bb_value": 17.0,
            "bb_rank": 181,
            "so_value": 60.0,
            "so_rank": 85,
            "sb_value": 5.0,
            "sb_rank": 94,
            "obp_value": 0.3304721,
            "obp_rank": "86",
            "slg_value": 0.4225352,
            "slg_rank": "80",
            "ops_value": 0.7530073,
            "ops_rank": 6.0,
            "war_value": 1.63,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 157.0,
          "k_percent": 25.6,
          "bb_percent": 7.3,
          "woba": 0.33,
          "xwoba": 0.304,
          "xba": 0.257,
          "xslg": 0.365,
          "sweet_spot_percent": 34.6,
          "barrel_batted_rate": 5.8,
          "hard_hit_percent": 37.2,
          "exit_velocity_avg": 89.6,
          "launch_angle_avg": 10.6,
          "whiff_percent": 29.5,
          "swing_percent": 49.8
        },
        "components": {
          "expected_quality": 0.0221,
          "regression_edge": -0.7429,
          "xwoba_edge": 0.0,
          "xba_edge": 0.5286,
          "xslg_edge": -0.1,
          "barrel_edge": -0.2222,
          "hard_hit_edge": -0.1857,
          "exit_velocity_edge": 0.32,
          "sweet_spot_edge": 0.2167,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "1B",
        "player_id": "669394",
        "player_name": "Jake Burger",
        "offense_factor": 1.0114,
        "quality_score": 0.1515,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "669394",
          "espn_id": 39882,
          "player_name": "Jake Burger",
          "team": "TEX",
          "role": "batter",
          "espn_rank": 86,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 86,
            "gp_value": 71.0,
            "gp_rank": 49,
            "ab_value": 263.0,
            "ab_rank": 59,
            "r_value": 32.0,
            "r_rank": 99,
            "h_value": 65.0,
            "h_rank": 75,
            "avg_value": 0.2471482,
            "avg_rank": 96.0,
            "2b_value": 13.0,
            "2b_rank": 61,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 12.0,
            "hr_rank": 46,
            "rbi_value": 42.0,
            "rbi_rank": 31,
            "tb_value": 114.0,
            "tb_rank": 662,
            "bb_value": 21.0,
            "bb_rank": 138,
            "so_value": 76.0,
            "so_rank": 27,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3031358,
            "obp_rank": "129",
            "slg_value": 0.43346,
            "slg_rank": "70",
            "ops_value": 0.7365958,
            "ops_rank": 59.0,
            "war_value": 1.39,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 211.0,
          "k_percent": 26.5,
          "bb_percent": 7.3,
          "woba": 0.322,
          "xwoba": 0.305,
          "xba": 0.24,
          "xslg": 0.402,
          "sweet_spot_percent": 32.3,
          "barrel_batted_rate": 9.6,
          "hard_hit_percent": 46.6,
          "exit_velocity_avg": 89.9,
          "launch_angle_avg": 11.4,
          "whiff_percent": 35.2,
          "swing_percent": 49.7
        },
        "components": {
          "expected_quality": 0.2628,
          "regression_edge": -0.4857,
          "xwoba_edge": 0.0286,
          "xba_edge": 0.0429,
          "xslg_edge": 0.4286,
          "barrel_edge": 0.6222,
          "hard_hit_edge": 1.1571,
          "exit_velocity_edge": 0.44,
          "sweet_spot_edge": -0.1667,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "CF",
        "player_id": "696030",
        "player_name": "Alejandro Osuna",
        "offense_factor": 0.9958,
        "quality_score": -0.0557,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "696030",
          "espn_id": 4916547,
          "player_name": "Alejandro Osuna",
          "team": "TEX",
          "role": "batter",
          "espn_rank": 275,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 275,
            "gp_value": 40.0,
            "gp_rank": 307,
            "ab_value": 102.0,
            "ab_rank": 315,
            "r_value": 12.0,
            "r_rank": 310,
            "h_value": 25.0,
            "h_rank": 297,
            "avg_value": 0.245098,
            "avg_rank": null,
            "2b_value": 2.0,
            "2b_rank": 387,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 0.0,
            "hr_rank": 441,
            "rbi_value": 9.0,
            "rbi_rank": 334,
            "tb_value": 27.0,
            "tb_rank": 2395,
            "bb_value": 12.0,
            "bb_rank": 253,
            "so_value": 17.0,
            "so_rank": 383,
            "sb_value": 4.0,
            "sb_rank": 124,
            "obp_value": 0.3583333,
            "obp_rank": "-",
            "slg_value": 0.2647058,
            "slg_rank": "-",
            "ops_value": 0.6230391,
            "ops_rank": null,
            "war_value": 0.19,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 84.0,
          "k_percent": 14.0,
          "bb_percent": 9.9,
          "woba": 0.299,
          "xwoba": 0.317,
          "xba": 0.259,
          "xslg": 0.31,
          "sweet_spot_percent": 29.1,
          "barrel_batted_rate": 0.0,
          "hard_hit_percent": 32.6,
          "exit_velocity_avg": 88.0,
          "launch_angle_avg": 3.2,
          "whiff_percent": 16.3,
          "swing_percent": 48.0
        },
        "components": {
          "expected_quality": -0.2277,
          "regression_edge": 0.5143,
          "xwoba_edge": 0.3714,
          "xba_edge": 0.5857,
          "xslg_edge": -0.8857,
          "barrel_edge": -1.5111,
          "hard_hit_edge": -0.8429,
          "exit_velocity_edge": -0.32,
          "sweet_spot_edge": -0.7,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "C",
        "player_id": "543309",
        "player_name": "Kyle Higashioka",
        "offense_factor": 1.0047,
        "quality_score": 0.0622,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "543309",
          "espn_id": 30545,
          "player_name": "Kyle Higashioka",
          "team": "TEX",
          "role": "batter",
          "espn_rank": 198,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 198,
            "gp_value": 39.0,
            "gp_rank": 314,
            "ab_value": 115.0,
            "ab_rank": 291,
            "r_value": 15.0,
            "r_rank": 272,
            "h_value": 27.0,
            "h_rank": 283,
            "avg_value": 0.2347826,
            "avg_rank": null,
            "2b_value": 3.0,
            "2b_rank": 356,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 5.0,
            "hr_rank": 184,
            "rbi_value": 14.0,
            "rbi_rank": 266,
            "tb_value": 45.0,
            "tb_rank": 1579,
            "bb_value": 12.0,
            "bb_rank": 253,
            "so_value": 33.0,
            "so_rank": 250,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3125,
            "obp_rank": "-",
            "slg_value": 0.3913043,
            "slg_rank": "-",
            "ops_value": 0.7038043,
            "ops_rank": null,
            "war_value": 0.54,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 91.0,
          "k_percent": 25.8,
          "bb_percent": 9.4,
          "woba": 0.314,
          "xwoba": 0.309,
          "xba": 0.237,
          "xslg": 0.382,
          "sweet_spot_percent": 36.6,
          "barrel_batted_rate": 11.0,
          "hard_hit_percent": 37.8,
          "exit_velocity_avg": 88.0,
          "launch_angle_avg": 15.5,
          "whiff_percent": 29.2,
          "swing_percent": 42.3
        },
        "components": {
          "expected_quality": 0.1841,
          "regression_edge": -0.1429,
          "xwoba_edge": 0.1429,
          "xba_edge": -0.0429,
          "xslg_edge": 0.1429,
          "barrel_edge": 0.9333,
          "hard_hit_edge": -0.1,
          "exit_velocity_edge": -0.32,
          "sweet_spot_edge": 0.55,
          "launch_angle_hr_bonus": 0.0
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "away": {
    "applied": true,
    "offense_factor": 1.0115,
    "raw_average_factor": 1.0115,
    "team_espn_average_rank": 260.11,
    "coverage_weight": 1.0,
    "covered_batters": 9,
    "missing_batters": 0,
    "players": [
      {
        "position": "CF",
        "player_id": "621439",
        "player_name": "Byron Buxton",
        "offense_factor": 1.0702,
        "quality_score": 0.9358,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "621439",
          "espn_id": 32655,
          "player_name": "Byron Buxton",
          "team": "MIN",
          "role": "batter",
          "espn_rank": 20,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 20,
            "gp_value": 63.0,
            "gp_rank": 156,
            "ab_value": 258.0,
            "ab_rank": 75,
            "r_value": 51.0,
            "r_rank": 7,
            "h_value": 71.0,
            "h_rank": 46,
            "avg_value": 0.2751937,
            "avg_rank": 49.0,
            "2b_value": 13.0,
            "2b_rank": 61,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 23.0,
            "hr_rank": 3,
            "rbi_value": 36.0,
            "rbi_rank": 63,
            "tb_value": 155.0,
            "tb_rank": 242,
            "bb_value": 21.0,
            "bb_rank": 138,
            "so_value": 74.0,
            "so_rank": 34,
            "sb_value": 7.0,
            "sb_rank": 62,
            "obp_value": 0.335689,
            "obp_rank": "80",
            "slg_value": 0.6007751,
            "slg_rank": "3",
            "ops_value": 0.9364641,
            "ops_rank": 77.0,
            "war_value": 2.83,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 215.0,
          "k_percent": 26.1,
          "bb_percent": 7.4,
          "woba": 0.397,
          "xwoba": 0.35,
          "xba": 0.245,
          "xslg": 0.515,
          "sweet_spot_percent": 33.0,
          "barrel_batted_rate": 18.9,
          "hard_hit_percent": 49.7,
          "exit_velocity_avg": 91.1,
          "launch_angle_avg": 21.1,
          "whiff_percent": 31.1,
          "swing_percent": 53.4
        },
        "components": {
          "expected_quality": 1.332,
          "regression_edge": -1.3429,
          "xwoba_edge": 1.3143,
          "xba_edge": 0.1857,
          "xslg_edge": 2.0429,
          "barrel_edge": 2.5,
          "hard_hit_edge": 1.6,
          "exit_velocity_edge": 0.92,
          "sweet_spot_edge": -0.05,
          "launch_angle_hr_bonus": 0.45
        }
      },
      {
        "position": "LF",
        "player_id": "663616",
        "player_name": "Trevor Larnach",
        "offense_factor": 1.0039,
        "quality_score": 0.0522,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "663616",
          "espn_id": 41205,
          "player_name": "Trevor Larnach",
          "team": "MIN",
          "role": "batter",
          "espn_rank": 189,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 189,
            "gp_value": 60.0,
            "gp_rank": 174,
            "ab_value": 182.0,
            "ab_rank": 185,
            "r_value": 31.0,
            "r_rank": 109,
            "h_value": 48.0,
            "h_rank": 164,
            "avg_value": 0.2637362,
            "avg_rank": null,
            "2b_value": 10.0,
            "2b_rank": 125,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 4.0,
            "hr_rank": 203,
            "rbi_value": 18.0,
            "rbi_rank": 231,
            "tb_value": 72.0,
            "tb_rank": 1042,
            "bb_value": 27.0,
            "bb_rank": 75,
            "so_value": 42.0,
            "so_rank": 178,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.3679245,
            "obp_rank": "-",
            "slg_value": 0.3956043,
            "slg_rank": "-",
            "ops_value": 0.7635288,
            "ops_rank": null,
            "war_value": 0.56,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 152.0,
          "k_percent": 19.8,
          "bb_percent": 12.7,
          "woba": 0.343,
          "xwoba": 0.327,
          "xba": 0.248,
          "xslg": 0.372,
          "sweet_spot_percent": 37.9,
          "barrel_batted_rate": 6.4,
          "hard_hit_percent": 30.0,
          "exit_velocity_avg": 86.3,
          "launch_angle_avg": 13.8,
          "whiff_percent": 27.0,
          "swing_percent": 41.8
        },
        "components": {
          "expected_quality": 0.1623,
          "regression_edge": -0.4571,
          "xwoba_edge": 0.6571,
          "xba_edge": 0.2714,
          "xslg_edge": 0.0,
          "barrel_edge": -0.0889,
          "hard_hit_edge": -1.2143,
          "exit_velocity_edge": -1.0,
          "sweet_spot_edge": 0.7667,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "1B",
        "player_id": "668904",
        "player_name": "Royce Lewis",
        "offense_factor": 1.002,
        "quality_score": 0.0267,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "668904",
          "espn_id": 40635,
          "player_name": "Royce Lewis",
          "team": "MIN",
          "role": "batter",
          "espn_rank": 269,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 269,
            "gp_value": 41.0,
            "gp_rank": 296,
            "ab_value": 141.0,
            "ab_rank": 254,
            "r_value": 17.0,
            "r_rank": 240,
            "h_value": 29.0,
            "h_rank": 269,
            "avg_value": 0.2056737,
            "avg_rank": null,
            "2b_value": 5.0,
            "2b_rank": 259,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 6.0,
            "hr_rank": 156,
            "rbi_value": 20.0,
            "rbi_rank": 204,
            "tb_value": 52.0,
            "tb_rank": 1384,
            "bb_value": 16.0,
            "bb_rank": 193,
            "so_value": 44.0,
            "so_rank": 165,
            "sb_value": 4.0,
            "sb_rank": 124,
            "obp_value": 0.2919254,
            "obp_rank": "-",
            "slg_value": 0.3687943,
            "slg_rank": "-",
            "ops_value": 0.6607197,
            "ops_rank": null,
            "war_value": 0.21,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 119.0,
          "k_percent": 27.3,
          "bb_percent": 9.9,
          "woba": 0.295,
          "xwoba": 0.3,
          "xba": 0.214,
          "xslg": 0.365,
          "sweet_spot_percent": 33.3,
          "barrel_batted_rate": 12.1,
          "hard_hit_percent": 41.4,
          "exit_velocity_avg": 88.6,
          "launch_angle_avg": 16.6,
          "whiff_percent": 35.0,
          "swing_percent": 47.7
        },
        "components": {
          "expected_quality": 0.0341,
          "regression_edge": 0.1429,
          "xwoba_edge": -0.1143,
          "xba_edge": -0.7,
          "xslg_edge": -0.1,
          "barrel_edge": 1.1778,
          "hard_hit_edge": 0.4143,
          "exit_velocity_edge": -0.08,
          "sweet_spot_edge": 0.0,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "RF",
        "player_id": "665019",
        "player_name": "Kody Clemens",
        "offense_factor": 1.0419,
        "quality_score": 0.5584,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "665019",
          "espn_id": 41311,
          "player_name": "Kody Clemens",
          "team": "MIN",
          "role": "batter",
          "espn_rank": 108,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 108,
            "gp_value": 62.0,
            "gp_rank": 163,
            "ab_value": 215.0,
            "ab_rank": 133,
            "r_value": 31.0,
            "r_rank": 109,
            "h_value": 54.0,
            "h_rank": 125,
            "avg_value": 0.2511627,
            "avg_rank": 85.0,
            "2b_value": 15.0,
            "2b_rank": 27,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 11.0,
            "hr_rank": 55,
            "rbi_value": 28.0,
            "rbi_rank": 131,
            "tb_value": 106.0,
            "tb_rank": 351,
            "bb_value": 16.0,
            "bb_rank": 193,
            "so_value": 51.0,
            "so_rank": 129,
            "sb_value": 6.0,
            "sb_rank": 79,
            "obp_value": 0.3177966,
            "obp_rank": "99",
            "slg_value": 0.4930232,
            "slg_rank": "31",
            "ops_value": 0.8108198,
            "ops_rank": 68.0,
            "war_value": 1.17,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 163.0,
          "k_percent": 21.4,
          "bb_percent": 6.7,
          "woba": 0.35,
          "xwoba": 0.337,
          "xba": 0.256,
          "xslg": 0.456,
          "sweet_spot_percent": 34.3,
          "barrel_batted_rate": 13.3,
          "hard_hit_percent": 44.0,
          "exit_velocity_avg": 92.5,
          "launch_angle_avg": 16.5,
          "whiff_percent": 24.4,
          "swing_percent": 48.9
        },
        "components": {
          "expected_quality": 0.9368,
          "regression_edge": -0.3714,
          "xwoba_edge": 0.9429,
          "xba_edge": 0.5,
          "xslg_edge": 1.2,
          "barrel_edge": 1.4444,
          "hard_hit_edge": 0.7857,
          "exit_velocity_edge": 1.48,
          "sweet_spot_edge": 0.1667,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "DH",
        "player_id": "605137",
        "player_name": "Josh Bell",
        "offense_factor": 1.0269,
        "quality_score": 0.3591,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "605137",
          "espn_id": 32517,
          "player_name": "Josh Bell",
          "team": "MIN",
          "role": "batter",
          "espn_rank": 386,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 386,
            "gp_value": 72.0,
            "gp_rank": 37,
            "ab_value": 262.0,
            "ab_rank": 63,
            "r_value": 35.0,
            "r_rank": 73,
            "h_value": 63.0,
            "h_rank": 84,
            "avg_value": 0.240458,
            "avg_rank": 105.0,
            "2b_value": 14.0,
            "2b_rank": 45,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 8.0,
            "hr_rank": 98,
            "rbi_value": 45.0,
            "rbi_rank": 21,
            "tb_value": 101.0,
            "tb_rank": 811,
            "bb_value": 19.0,
            "bb_rank": 161,
            "so_value": 67.0,
            "so_rank": 54,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.2947368,
            "obp_rank": "139",
            "slg_value": 0.3854961,
            "slg_rank": "117",
            "ops_value": 0.6802329,
            "ops_rank": 22.0,
            "war_value": -0.08,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 213.0,
          "k_percent": 23.5,
          "bb_percent": 6.7,
          "woba": 0.3,
          "xwoba": 0.312,
          "xba": 0.245,
          "xslg": 0.417,
          "sweet_spot_percent": 34.5,
          "barrel_batted_rate": 10.2,
          "hard_hit_percent": 42.1,
          "exit_velocity_avg": 89.5,
          "launch_angle_avg": 12.7,
          "whiff_percent": 25.5,
          "swing_percent": 51.6
        },
        "components": {
          "expected_quality": 0.3755,
          "regression_edge": 0.3429,
          "xwoba_edge": 0.2286,
          "xba_edge": 0.1857,
          "xslg_edge": 0.6429,
          "barrel_edge": 0.7556,
          "hard_hit_edge": 0.5143,
          "exit_velocity_edge": 0.28,
          "sweet_spot_edge": 0.2,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "3B",
        "player_id": "686797",
        "player_name": "Brooks Lee",
        "offense_factor": 0.9577,
        "quality_score": -0.5645,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "686797",
          "espn_id": 4629081,
          "player_name": "Brooks Lee",
          "team": "MIN",
          "role": "batter",
          "espn_rank": 195,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 195,
            "gp_value": 71.0,
            "gp_rank": 49,
            "ab_value": 255.0,
            "ab_rank": 78,
            "r_value": 31.0,
            "r_rank": 109,
            "h_value": 61.0,
            "h_rank": 93,
            "avg_value": 0.2392156,
            "avg_rank": 108.0,
            "2b_value": 10.0,
            "2b_rank": 125,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 11.0,
            "hr_rank": 55,
            "rbi_value": 39.0,
            "rbi_rank": 46,
            "tb_value": 106.0,
            "tb_rank": 527,
            "bb_value": 19.0,
            "bb_rank": 161,
            "so_value": 45.0,
            "so_rank": 158,
            "sb_value": 3.0,
            "sb_rank": 148,
            "obp_value": 0.2960288,
            "obp_rank": "137",
            "slg_value": 0.4156862,
            "slg_rank": "88",
            "ops_value": 0.711715,
            "ops_rank": 225.0,
            "war_value": 0.55,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 207.0,
          "k_percent": 16.2,
          "bb_percent": 6.8,
          "woba": 0.312,
          "xwoba": 0.277,
          "xba": 0.226,
          "xslg": 0.341,
          "sweet_spot_percent": 33.0,
          "barrel_batted_rate": 4.7,
          "hard_hit_percent": 31.1,
          "exit_velocity_avg": 87.8,
          "launch_angle_avg": 13.5,
          "whiff_percent": 21.1,
          "swing_percent": 52.0
        },
        "components": {
          "expected_quality": -0.5348,
          "regression_edge": -1.0,
          "xwoba_edge": -0.7714,
          "xba_edge": -0.3571,
          "xslg_edge": -0.4429,
          "barrel_edge": -0.4667,
          "hard_hit_edge": -1.0571,
          "exit_velocity_edge": -0.4,
          "sweet_spot_edge": -0.05,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "C",
        "player_id": "605170",
        "player_name": "Victor Caratini",
        "offense_factor": 1.0345,
        "quality_score": 0.4602,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "605170",
          "espn_id": 33229,
          "player_name": "Victor Caratini",
          "team": "MIN",
          "role": "batter",
          "espn_rank": 381,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 381,
            "gp_value": 53.0,
            "gp_rank": 216,
            "ab_value": 163.0,
            "ab_rank": 220,
            "r_value": 11.0,
            "r_rank": 327,
            "h_value": 35.0,
            "h_rank": 232,
            "avg_value": 0.2147239,
            "avg_rank": null,
            "2b_value": 5.0,
            "2b_rank": 259,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 4.0,
            "hr_rank": 203,
            "rbi_value": 25.0,
            "rbi_rank": 161,
            "tb_value": 52.0,
            "tb_rank": 1488,
            "bb_value": 18.0,
            "bb_rank": 174,
            "so_value": 38.0,
            "so_rank": 208,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3112244,
            "obp_rank": "-",
            "slg_value": 0.3190184,
            "slg_rank": "-",
            "ops_value": 0.6302428,
            "ops_rank": null,
            "war_value": -0.07,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 148.0,
          "k_percent": 19.4,
          "bb_percent": 9.2,
          "woba": 0.287,
          "xwoba": 0.339,
          "xba": 0.251,
          "xslg": 0.397,
          "sweet_spot_percent": 40.2,
          "barrel_batted_rate": 6.8,
          "hard_hit_percent": 39.4,
          "exit_velocity_avg": 89.1,
          "launch_angle_avg": 11.6,
          "whiff_percent": 21.2,
          "swing_percent": 42.2
        },
        "components": {
          "expected_quality": 0.5535,
          "regression_edge": 1.4857,
          "xwoba_edge": 1.0,
          "xba_edge": 0.3571,
          "xslg_edge": 0.3571,
          "barrel_edge": 0.0,
          "hard_hit_edge": 0.1286,
          "exit_velocity_edge": 0.12,
          "sweet_spot_edge": 1.15,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "SS",
        "player_id": "656484",
        "player_name": "Tristan Gray",
        "offense_factor": 0.999,
        "quality_score": -0.0127,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "656484",
          "espn_id": 39918,
          "player_name": "Tristan Gray",
          "team": "MIN",
          "role": "batter",
          "espn_rank": 514,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 514,
            "gp_value": 46.0,
            "gp_rank": 263,
            "ab_value": 127.0,
            "ab_rank": 266,
            "r_value": 13.0,
            "r_rank": 302,
            "h_value": 31.0,
            "h_rank": 262,
            "avg_value": 0.2440944,
            "avg_rank": null,
            "2b_value": 4.0,
            "2b_rank": 307,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 4.0,
            "hr_rank": 203,
            "rbi_value": 27.0,
            "rbi_rank": 139,
            "tb_value": 47.0,
            "tb_rank": 1566,
            "bb_value": 8.0,
            "bb_rank": 314,
            "so_value": 42.0,
            "so_rank": 178,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.2877697,
            "obp_rank": "-",
            "slg_value": 0.3700787,
            "slg_rank": "-",
            "ops_value": 0.6578484,
            "ops_rank": null,
            "war_value": -0.45,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 90.0,
          "k_percent": 30.0,
          "bb_percent": 5.7,
          "woba": 0.289,
          "xwoba": 0.292,
          "xba": 0.239,
          "xslg": 0.366,
          "sweet_spot_percent": 41.6,
          "barrel_batted_rate": 6.8,
          "hard_hit_percent": 41.6,
          "exit_velocity_avg": 89.4,
          "launch_angle_avg": 14.8,
          "whiff_percent": 34.0,
          "swing_percent": 55.4
        },
        "components": {
          "expected_quality": -0.0469,
          "regression_edge": 0.0857,
          "xwoba_edge": -0.3429,
          "xba_edge": 0.0143,
          "xslg_edge": -0.0857,
          "barrel_edge": 0.0,
          "hard_hit_edge": 0.4429,
          "exit_velocity_edge": 0.24,
          "sweet_spot_edge": 1.3833,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "2B",
        "player_id": "807712",
        "player_name": "Luke Keaschall",
        "offense_factor": 0.9671,
        "quality_score": -0.4392,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "807712",
          "espn_id": 4977664,
          "player_name": "Luke Keaschall",
          "team": "MIN",
          "role": "batter",
          "espn_rank": 279,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 279,
            "gp_value": 69.0,
            "gp_rank": 83,
            "ab_value": 244.0,
            "ab_rank": 103,
            "r_value": 33.0,
            "r_rank": 90,
            "h_value": 60.0,
            "h_rank": 96,
            "avg_value": 0.2459016,
            "avg_rank": 97.0,
            "2b_value": 12.0,
            "2b_rank": 80,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 2.0,
            "hr_rank": 301,
            "rbi_value": 24.0,
            "rbi_rank": 173,
            "tb_value": 80.0,
            "tb_rank": 1223,
            "bb_value": 25.0,
            "bb_rank": 90,
            "so_value": 44.0,
            "so_rank": 165,
            "sb_value": 10.0,
            "sb_rank": 37,
            "obp_value": 0.3249097,
            "obp_rank": "94",
            "slg_value": 0.3278688,
            "slg_rank": "145",
            "ops_value": 0.6527785,
            "ops_rank": 51.0,
            "war_value": 0.18,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 205.0,
          "k_percent": 15.9,
          "bb_percent": 9.0,
          "woba": 0.296,
          "xwoba": 0.289,
          "xba": 0.228,
          "xslg": 0.335,
          "sweet_spot_percent": 36.0,
          "barrel_batted_rate": 3.0,
          "hard_hit_percent": 29.6,
          "exit_velocity_avg": 84.8,
          "launch_angle_avg": 17.0,
          "whiff_percent": 16.3,
          "swing_percent": 41.9
        },
        "components": {
          "expected_quality": -0.5155,
          "regression_edge": -0.2,
          "xwoba_edge": -0.4286,
          "xba_edge": -0.3,
          "xslg_edge": -0.5286,
          "barrel_edge": -0.8444,
          "hard_hit_edge": -1.2714,
          "exit_velocity_edge": -1.6,
          "sweet_spot_edge": 0.45,
          "launch_angle_hr_bonus": 0.0
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "reason": "Baseball Savant hitter xwOBA, xBA, xSLG, exit velocity, launch angle, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted offense; ESPN rank is attached for reporting only"
}

Savant Pitcher Quality

Source: data/all_players_stats.csv embedded Savant pitcher and movement features. Starter quality modifies opposing run scoring and pitcher strikeout/walk/homer expectations.

TeamPitcherAvailableESPN RankQualitySample WtRun PrevK FactorBB FactorHR FactorRegressionxwOBAwOBAK%BB%Whiff%Barrel%HardHit%
Away MINTrue240.27110.93200.97701.02500.91801.0530neutral0.28100.268027.704.8025.2010.5043.40
Home TEXTrue586-0.21710.96001.01851.00491.01341.0713neutral0.33300.332023.609.9025.501040.20

Pitch Movement And Arsenal

TeamPitcherMovement AvailablePrimary PitchPitchesVeloSpinAxisHBIVBDropRel XRel ZExtensionArm AngleMovement Score
Away MINTrueNone9487.97237100000000-0.0983
Home TEXTrueNone9692.162336000000000.1361
Run FactorValue
away_runs_vs_home_pitcher1.0178
home_runs_vs_away_pitcher0.9786
home_pitcher_quality_edge-0.4882
Raw Savant Pitcher Quality JSON
{
  "applied": true,
  "home_pitcher": {
    "available": true,
    "pitcher_id": "683004",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 240.0,
      "k_percent": 23.6,
      "bb_percent": 9.9,
      "woba": 0.332,
      "xwoba": 0.333,
      "sweet_spot_percent": 37.0,
      "barrel_batted_rate": 10.0,
      "hard_hit_percent": 40.2,
      "avg_best_speed": 76.3779,
      "avg_hyper_speed": 94.0797,
      "whiff_percent": 25.5,
      "swing_percent": 47.5
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": -0.4301,
      "command_and_miss": 0.0257,
      "regression_edge": -0.0286,
      "xwoba_edge": -0.5143,
      "barrel_edge": -0.6,
      "hard_hit_edge": -0.2714,
      "whiff_edge": -0.0286,
      "bb_edge": -0.175,
      "pitch_design_score": 0.1361
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "683004",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 96,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 96,
        "pitch_usage": 0.0,
        "release_speed": 92.15993154511234,
        "release_spin_rate": 2335.530048343372,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 96,
          "pitch_usage": 0.0,
          "release_speed": 92.15993154511234,
          "release_spin_rate": 2335.530048343372,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 92.1599,
        "release_spin_rate": 2335.53,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": 0.1361,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": 0.9724,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": -0.2171,
    "sample_weight": 0.96,
    "run_prevention_factor": 1.0185,
    "strikeout_factor": 1.0049,
    "walk_factor": 1.0134,
    "homer_factor": 1.0713,
    "woba_minus_xwoba": -0.001,
    "regression_flag": "neutral",
    "espn_rank": {
      "available": true,
      "player_id": "683004",
      "espn_id": 4622181,
      "player_name": "Jack Leiter",
      "team": "TEX",
      "role": "pitcher",
      "espn_rank": 586,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 586,
        "gp_value": 14.0,
        "gp_rank": 279,
        "gs_value": 14.0,
        "gs_rank": 37,
        "qs_value": 2.0,
        "qs_rank": 109,
        "era_value": 4.8552,
        "era_rank": 57.0,
        "w_value": 3.0,
        "w_rank": 107,
        "l_value": 6.0,
        "l_rank": 17,
        "sv_value": 0.0,
        "sv_rank": 172,
        "hld_value": 0.0,
        "hld_rank": 256,
        "ip_value": 76.0,
        "ip_rank": 54,
        "h_value": 73.0,
        "h_rank": 44,
        "er_value": 41.0,
        "er_rank": 20,
        "hr_value": 12.0,
        "hr_rank": 30,
        "bb_value": 33.0,
        "bb_rank": 13,
        "k_value": 79.0,
        "k_rank": 34,
        "k_per_9_value": 9.355263,
        "k_per_9_rank": 17,
        "whip_value": 1.3947,
        "whip_rank": 57.0,
        "war_value": -0.27,
        "war_rank": 1.0
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "away_pitcher": {
    "available": true,
    "pitcher_id": "657746",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 233.0,
      "k_percent": 27.7,
      "bb_percent": 4.8,
      "woba": 0.268,
      "xwoba": 0.281,
      "sweet_spot_percent": 33.8,
      "barrel_batted_rate": 10.5,
      "hard_hit_percent": 43.4,
      "avg_best_speed": 78.8985,
      "avg_hyper_speed": 94.5234,
      "whiff_percent": 25.2,
      "swing_percent": 50.0
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": 0.3542,
      "command_and_miss": 0.5293,
      "regression_edge": -0.3714,
      "xwoba_edge": 0.9714,
      "barrel_edge": -0.7111,
      "hard_hit_edge": -0.7286,
      "whiff_edge": -0.0714,
      "bb_edge": 1.1,
      "pitch_design_score": -0.0983
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "657746",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 94,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 94,
        "pitch_usage": 0.0,
        "release_speed": 87.97292842814021,
        "release_spin_rate": 2370.846699153044,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 94,
          "pitch_usage": 0.0,
          "release_speed": 87.97292842814021,
          "release_spin_rate": 2370.846699153044,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 87.9729,
        "release_spin_rate": 2370.8467,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": -0.0983,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": -0.7024,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": 0.2711,
    "sample_weight": 0.932,
    "run_prevention_factor": 0.977,
    "strikeout_factor": 1.025,
    "walk_factor": 0.918,
    "homer_factor": 1.053,
    "woba_minus_xwoba": -0.013,
    "regression_flag": "neutral",
    "espn_rank": {
      "available": true,
      "player_id": "657746",
      "espn_id": 42450,
      "player_name": "Joe Ryan",
      "team": "MIN",
      "role": "pitcher",
      "espn_rank": 24,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 24,
        "gp_value": 15.0,
        "gp_rank": 228,
        "gs_value": 15.0,
        "gs_rank": 2,
        "qs_value": 9.0,
        "qs_rank": 7,
        "era_value": 3.17,
        "era_rank": 19.0,
        "w_value": 4.0,
        "w_rank": 65,
        "l_value": 3.0,
        "l_rank": 110,
        "sv_value": 0.0,
        "sv_rank": 172,
        "hld_value": 0.0,
        "hld_rank": 256,
        "ip_value": 82.1,
        "ip_rank": 28,
        "h_value": 66.0,
        "h_rank": 74,
        "er_value": 29.0,
        "er_rank": 92,
        "hr_value": 8.0,
        "hr_rank": 79,
        "bb_value": 16.0,
        "bb_rank": 176,
        "k_value": 92.0,
        "k_rank": 13,
        "k_per_9_value": 10.05668,
        "k_per_9_rank": 12,
        "whip_value": 0.9959,
        "whip_rank": 7.0,
        "war_value": 2.05,
        "war_rank": 1.0
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "run_factors": {
    "away_runs_vs_home_pitcher": 1.0178,
    "home_runs_vs_away_pitcher": 0.9786,
    "home_pitcher_quality_edge": -0.4882
  },
  "score_before": {
    "away_runs": 3.0,
    "home_runs": 2.0
  },
  "score_after": {
    "away_runs": 3.0533,
    "home_runs": 1.9571,
    "home_win_probability": 0.398
  },
  "reason": "Baseball Savant xwOBA, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted starter run prevention"
}

Team Form Snapshot

TeamLast-10 W-LWin %R/GRA/GRun DiffStreakOffenseDefense
Away MIN16-510.2391.203.90-177coldaverage
Home TEX15-460.24613.20-138coldstrong

Season Run Differential

TeamRecordWin %Run DiffRD/GameAvailable
Away MIN35-400.467-30-0.400True
Home TEX35-380.479-6-0.082True
Signal--0.3180.337applied=False

Recent Head-to-Head

DateMatchupScoreWinnerMarginType
------

Player/Game Reconciliation

LayerABHRHRRBIBBSO
Game target MIN--3----
Game target TEX--2----
Player finalized MIN33940309
Player finalized TEX32910109
Player model fractional MIN31.837.414.401.404.482.817.45
Player model fractional TEX31.266.863.490.803.022.797.22
Simulation box MIN36943427
Simulation box TEX33610147

If player finalized rows and game target disagree, the report now exposes that gap instead of hiding it. Fractional model rows show the unrounded prop layer before box-score realization.

Pitching Snapshot

TeamRolePitcherPre IPPre ERPre SOPre HPre BBWeighted ERAWeighted WHIPBox Sync
Away MINStarterJoe Ryan617433.471.09True
Away MINMiddle RelieverAnthony Banda100202.551.39True
Away MINMiddle RelieverTravis Adams100005.071.33True
Away MINMiddle RelieverYoendrys Gómez100013.831.39True
Home TEXStarterJack Leiter5.1024515.251.42True
Home TEXMiddle RelieverJacob Latz1.1010202.150.87True
Home TEXMiddle RelieverJakob Junis100013.491.18True
Home TEXMiddle RelieverCole Winn0.2011206.101.42True
Home TEXMiddle RelieverTyler Alexander0.2002004.991.52True
Market-line comparison is not rendered because no local odds or sportsbook line CSV was found in data/. Add a real odds source before using market deltas as a model feature.

Player Boost/Deboost Impact Summary

SideTeamRolePosPlayerDominantChangedBoostedDeboostedBetterWorseLargest MetricLargest DeltaDirectionEffect
homeTEXbatterDHJoc Pedersonworse1129110predicted_AB2.2690boostbetter
awayMINpitcherStarterJoe Ryanbetter11010predicted_SO2.0000boostbetter
awayMINbatter1BRoyce Lewisbetter85362predicted_HR1.8200boostbetter
awayMINbatterSSTristan Graybetter115665predicted_RBI1.5900boostbetter
homeTEXbatterLFWyatt Langfordworse113829predicted_AB-1.3200deboostworse
awayMINbatterLFTrevor Larnachworse115647predicted_SO1.2630boostworse
awayMINbatterCFByron Buxtonworse114756predicted_SO-1.1750deboostbetter
homeTEXbatter1BJake Burgerworse91827predicted_SO-1.0700deboostbetter
awayMINpitcherMiddle RelieverAnthony Bandaworse10101predicted_SO-1.0000deboostworse
awayMINpitcherMiddle RelieverYoendrys Gómezworse10101predicted_SO-1.0000deboostworse
homeTEXbatter3BJosh Jungworse101928predicted_H0.9700boostbetter
homeTEXbatterRFBrandon Nimmoworse101928predicted_SO-0.8870deboostbetter
awayMINbatterCVictor Caratiniworse113829predicted_AB0.8650boostbetter
homeTEXbatterCKyle Higashiokaworse1129110predicted_AB0.8060boostbetter
homeTEXbatterSSEzequiel Duranworse94545predicted_RBI0.8000boostbetter
awayMINbatterDHJosh Bellworse93627predicted_RBI-0.7500deboostworse
homeTEXbatterCFAlejandro Osunaworse113847predicted_BB0.7180boostbetter
homeTEXbatter2BJosh Smithworse94536predicted_BB0.5630boostbetter
awayMINbatterRFKody Clemensworse1129110predicted_R-0.5080deboostworse
awayMINbatter2BLuke Keaschallworse113829predicted_R-0.4850deboostworse
homeTEXpitcherMiddle RelieverCole Winnworse10101predicted_IP-0.4667deboostworse
homeTEXpitcherMiddle RelieverTyler Alexanderworse10101predicted_IP-0.4667deboostworse
awayMINbatter3BBrooks Leeworse104637predicted_R-0.4560deboostworse
homeTEXpitcherStarterJack Leiterworse10101predicted_IP-0.2333deboostworse
homeTEXpitcherMiddle RelieverJacob Latzworse10101predicted_IP-0.2333deboostworse

This table ranks players whose JSON evolution changed materially. Boost/deboost is numeric movement; better/worse is role-aware.

Away Team: MIN

Away Pitcher Deep Analysis

FieldValue
PitcherJoe Ryan
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score0.2711
ESPN Rank24
Movement AvailableTrue
Primary Pitch-
Movement Score-0.0983
Avg Velo87.9729
Avg Spin2370.8467
HB Inches0
IVB Inches0
Release Extension0
Pre IP6
Pre ER1
Pre H4
Pre BB3
Pre SO7
Season ERA3.1700
Season WHIP0.9960
Role Avg IP5.4890
Recent Avg IP6.3330
Last Start IP6
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "MIN",
    "games": 81,
    "wins": 38,
    "losses": 43,
    "win_pct": 0.4691,
    "runs_scored": 390.0,
    "runs_allowed": 408.0,
    "run_differential": -18.0,
    "run_differential_per_game": -0.2222,
    "avg_runs_scored": 4.8148,
    "avg_runs_allowed": 5.037,
    "offense_index": 1.0685,
    "defense_index": 0.8946,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 5.9,
      "run_differential": -6.0
    },
    "available": true,
    "quality_score": -0.0534
  },
  "opponent": {
    "team": "TEX",
    "games": 79,
    "wins": 39,
    "losses": 40,
    "win_pct": 0.4937,
    "runs_scored": 320.0,
    "runs_allowed": 322.0,
    "run_differential": -2.0,
    "run_differential_per_game": -0.0253,
    "avg_runs_scored": 4.0506,
    "avg_runs_allowed": 4.0759,
    "offense_index": 0.8989,
    "defense_index": 1.1056,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 3.7,
      "avg_runs_allowed": 5.3,
      "run_differential": -16.0
    },
    "available": true,
    "quality_score": -0.0434
  },
  "edges": {
    "quality_edge": -0.01,
    "offense_edge": 0.0685,
    "opponent_offense_edge": -0.1011,
    "defense_strength": -0.1054,
    "opponent_defense_weakness": -0.1056,
    "recent_win_pct_edge": 0.1
  },
  "player_factors": {
    "ip": 1.0005,
    "run_prevention": 0.9949,
    "strikeout": 1.0078
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "657746",
    "profile": {
      "available": true,
      "pitcher_id": "657746",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 233.0,
        "k_percent": 27.7,
        "bb_percent": 4.8,
        "woba": 0.268,
        "xwoba": 0.281,
        "sweet_spot_percent": 33.8,
        "barrel_batted_rate": 10.5,
        "hard_hit_percent": 43.4,
        "avg_best_speed": 78.8985,
        "avg_hyper_speed": 94.5234,
        "whiff_percent": 25.2,
        "swing_percent": 50.0
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.3542,
        "command_and_miss": 0.5293,
        "regression_edge": -0.3714,
        "xwoba_edge": 0.9714,
        "barrel_edge": -0.7111,
        "hard_hit_edge": -0.7286,
        "whiff_edge": -0.0714,
        "bb_edge": 1.1,
        "pitch_design_score": -0.0983
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "657746",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 94,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 94,
          "pitch_usage": 0.0,
          "release_speed": 87.97292842814021,
          "release_spin_rate": 2370.846699153044,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 94,
            "pitch_usage": 0.0,
            "release_speed": 87.97292842814021,
            "release_spin_rate": 2370.846699153044,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 87.9729,
          "release_spin_rate": 2370.8467,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.0983,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -0.7024,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.2711,
      "sample_weight": 0.932,
      "run_prevention_factor": 0.977,
      "strikeout_factor": 1.025,
      "walk_factor": 0.918,
      "homer_factor": 1.053,
      "woba_minus_xwoba": -0.013,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "657746",
        "espn_id": 42450,
        "player_name": "Joe Ryan",
        "team": "MIN",
        "role": "pitcher",
        "espn_rank": 24,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 24,
          "gp_value": 15.0,
          "gp_rank": 228,
          "gs_value": 15.0,
          "gs_rank": 2,
          "qs_value": 9.0,
          "qs_rank": 7,
          "era_value": 3.17,
          "era_rank": 19.0,
          "w_value": 4.0,
          "w_rank": 65,
          "l_value": 3.0,
          "l_rank": 110,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 82.1,
          "ip_rank": 28,
          "h_value": 66.0,
          "h_rank": 74,
          "er_value": 29.0,
          "er_rank": 92,
          "hr_value": 8.0,
          "hr_rank": 79,
          "bb_value": 16.0,
          "bb_rank": 176,
          "k_value": 92.0,
          "k_rank": 13,
          "k_per_9_value": 10.05668,
          "k_per_9_rank": 12,
          "whip_value": 0.9959,
          "whip_rank": 7.0,
          "war_value": 2.05,
          "war_rank": 1.0
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 2.0,
        "factor": 0.9786,
        "adjusted": 2
      },
      "predicted_H": {
        "original": 5.0,
        "factor": 0.9786,
        "adjusted": 5
      },
      "predicted_BB": {
        "original": 1.0,
        "factor": 0.9236,
        "adjusted": 1
      },
      "predicted_HR": {
        "original": 1.0,
        "factor": 1.0494,
        "adjusted": 1
      },
      "predicted_SO": {
        "original": 7.0,
        "factor": 1.0233,
        "adjusted": 7
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 55.0,
    "ER": 19,
    "H": 48,
    "BB": 10,
    "SO": 64,
    "HR": 7,
    "ERA": 3.109090909090909,
    "WHIP": 1.0545454545454545,
    "K9": 10.472727272727273,
    "HR9": 1.1454545454545455,
    "games_pitched": 10,
    "quality_starts": 7,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-12T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "657746",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 94,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 94,
    "pitch_usage": 0.0,
    "release_speed": 87.97292842814021,
    "release_spin_rate": 2370.846699153044,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 94,
      "pitch_usage": 0.0,
      "release_speed": 87.97292842814021,
      "release_spin_rate": 2370.846699153044,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 87.9729,
    "release_spin_rate": 2370.8467,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.0983,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -0.7024,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 15.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.75,
    "prior_weight": 0.25
  },
  "role": "pitcher",
  "player_id": "657746",
  "report_date": "20260618_M",
  "season_year": 2026,
  "rows_used": 15,
  "reference_playing_time": 6.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 31.2,
        "ER": 11.0,
        "R": 11.0,
        "H": 29.0,
        "BB": 2.0,
        "SO": 40.0,
        "HR": 5.0,
        "BF": 129.0,
        "Pitches": 499.0
      },
      "per_game": {
        "IP": 6.1,
        "ER": 2.2,
        "R": 2.2,
        "H": 5.8,
        "BB": 0.4,
        "SO": 8.0,
        "HR": 1.0,
        "BF": 25.8,
        "Pitches": 99.8
      },
      "rates": {
        "ERA": 3.1263,
        "WHIP": 0.9789,
        "ER_per_IP": 0.34737,
        "H_per_IP": 0.91579,
        "BB_per_IP": 0.06316,
        "SO_per_IP": 1.26316,
        "HR_per_IP": 0.15789
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 55.0,
        "ER": 19.0,
        "R": 22.0,
        "H": 48.0,
        "BB": 10.0,
        "SO": 64.0,
        "HR": 7.0,
        "BF": 225.0,
        "Pitches": 885.0
      },
      "per_game": {
        "IP": 5.1,
        "ER": 1.9,
        "R": 2.2,
        "H": 4.8,
        "BB": 1.0,
        "SO": 6.4,
        "HR": 0.7,
        "BF": 22.5,
        "Pitches": 88.5
      },
      "rates": {
        "ERA": 3.1091,
        "WHIP": 1.0545,
        "ER_per_IP": 0.34545,
        "H_per_IP": 0.87273,
        "BB_per_IP": 0.18182,
        "SO_per_IP": 1.16364,
        "HR_per_IP": 0.12727
      }
    },
    "season": {
      "games": 15,
      "totals": {
        "IP": 82.1,
        "ER": 29.0,
        "R": 34.0,
        "H": 66.0,
        "BB": 16.0,
        "SO": 92.0,
        "HR": 8.0,
        "BF": 332.0,
        "Pitches": 1333.0
      },
      "per_game": {
        "IP": 5.1,
        "ER": 1.9333,
        "R": 2.2667,
        "H": 4.4,
        "BB": 1.0667,
        "SO": 6.1333,
        "HR": 0.5333,
        "BF": 22.1333,
        "Pitches": 88.8667
      },
      "rates": {
        "ERA": 3.17,
        "WHIP": 0.996,
        "ER_per_IP": 0.35223,
        "H_per_IP": 0.80162,
        "BB_per_IP": 0.19433,
        "SO_per_IP": 1.11741,
        "HR_per_IP": 0.09717
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 6.0,
    "predicted_ER": 2.253,
    "predicted_H": 5.265,
    "predicted_BB": 1.103,
    "predicted_SO": 6.619,
    "predicted_HR": 0.804,
    "predicted_ERA": 3.4738,
    "predicted_WHIP": 1.0909
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.4556,
  "form_weight": 0.5444,
  "form_reliability": 0.75,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 15.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.75,
    "prior_weight": 0.25
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 6.0,
      "form": 6.0,
      "final": 6.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 1.0,
      "form": 2.253,
      "final": 1.6821,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 4.0,
      "form": 5.265,
      "final": 4.6886,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 3.0,
      "form": 1.103,
      "final": 1.9673,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 5.0,
      "form": 6.619,
      "final": 5.8813,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.804,
      "final": 0.4377,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.4738,
      "final": 3.4738,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.0909,
      "final": 1.0909,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherAnthony Banda
RoleMiddle Reliever
Projection Source-
Savant Quality Score-0.0223
ESPN Rank381
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H2
Pre BB0
Pre SO0
Season ERA4.5000
Season WHIP1.3000
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "MIN",
    "games": 81,
    "wins": 38,
    "losses": 43,
    "win_pct": 0.4691,
    "runs_scored": 390.0,
    "runs_allowed": 408.0,
    "run_differential": -18.0,
    "run_differential_per_game": -0.2222,
    "avg_runs_scored": 4.8148,
    "avg_runs_allowed": 5.037,
    "offense_index": 1.0685,
    "defense_index": 0.8946,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 5.9,
      "run_differential": -6.0
    },
    "available": true,
    "quality_score": -0.0534
  },
  "opponent": {
    "team": "TEX",
    "games": 79,
    "wins": 39,
    "losses": 40,
    "win_pct": 0.4937,
    "runs_scored": 320.0,
    "runs_allowed": 322.0,
    "run_differential": -2.0,
    "run_differential_per_game": -0.0253,
    "avg_runs_scored": 4.0506,
    "avg_runs_allowed": 4.0759,
    "offense_index": 0.8989,
    "defense_index": 1.1056,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 3.7,
      "avg_runs_allowed": 5.3,
      "run_differential": -16.0
    },
    "available": true,
    "quality_score": -0.0434
  },
  "edges": {
    "quality_edge": -0.01,
    "offense_edge": 0.0685,
    "opponent_offense_edge": -0.1011,
    "defense_strength": -0.1054,
    "opponent_defense_weakness": -0.1056,
    "recent_win_pct_edge": 0.1
  },
  "player_factors": {
    "ip": 1.0005,
    "run_prevention": 0.9949,
    "strikeout": 1.0078
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "607455",
    "profile": {
      "available": true,
      "pitcher_id": "607455",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 104.0,
        "k_percent": 20.1,
        "bb_percent": 10.4,
        "woba": 0.32,
        "xwoba": 0.317,
        "sweet_spot_percent": 28.7,
        "barrel_batted_rate": 5.8,
        "hard_hit_percent": 37.9,
        "avg_best_speed": 80.5819,
        "avg_hyper_speed": 94.031,
        "whiff_percent": 26.3,
        "swing_percent": 45.3
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.0183,
        "command_and_miss": -0.1843,
        "regression_edge": 0.0857,
        "xwoba_edge": -0.0571,
        "barrel_edge": 0.3333,
        "hard_hit_edge": 0.0571,
        "whiff_edge": 0.0857,
        "bb_edge": -0.3,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "607455",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": -0.0223,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0019,
      "strikeout_factor": 0.9954,
      "walk_factor": 1.0108,
      "homer_factor": 0.9877,
      "woba_minus_xwoba": 0.003,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "607455",
        "espn_id": 34542,
        "player_name": "Anthony Banda",
        "team": "MIN",
        "role": "pitcher",
        "espn_rank": 381,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 381,
          "gp_value": 34.0,
          "gp_rank": 13,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 4.5,
          "era_rank": null,
          "w_value": 2.0,
          "w_rank": 180,
          "l_value": 0.0,
          "l_rank": 430,
          "sv_value": 1.0,
          "sv_rank": 86,
          "hld_value": 9.0,
          "hld_rank": 31,
          "ip_value": 30.0,
          "ip_rank": 251,
          "h_value": 25.0,
          "h_rank": 266,
          "er_value": 15.0,
          "er_rank": 209,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 14.0,
          "bb_rank": 209,
          "k_value": 27.0,
          "k_rank": 277,
          "k_per_9_value": 8.1,
          "k_per_9_rank": 29,
          "whip_value": 1.3,
          "whip_rank": null,
          "war_value": 0.02,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 1.0009,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 1.0009,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0049,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9945,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 0.9979,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 8.1,
    "ER": 0,
    "H": 6,
    "BB": 6,
    "SO": 8,
    "HR": 0,
    "ERA": 0.0,
    "WHIP": 1.44,
    "K9": 8.639999999999999,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-14T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "607455",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.958,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5437,
    "prior_weight": 0.4563
  },
  "role": "pitcher",
  "player_id": "607455",
  "report_date": "20260618_M",
  "season_year": 2026,
  "rows_used": 34,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.0,
        "ER": 0.0,
        "R": 1.0,
        "H": 4.0,
        "BB": 2.0,
        "SO": 3.0,
        "HR": 0.0,
        "BF": 19.0,
        "Pitches": 72.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 0.0,
        "R": 0.2,
        "H": 0.8,
        "BB": 0.4,
        "SO": 0.6,
        "HR": 0.0,
        "BF": 3.8,
        "Pitches": 14.4
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 1.5,
        "ER_per_IP": 0.0,
        "H_per_IP": 1.0,
        "BB_per_IP": 0.5,
        "SO_per_IP": 0.75,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 8.1,
        "ER": 0.0,
        "R": 1.0,
        "H": 6.0,
        "BB": 6.0,
        "SO": 8.0,
        "HR": 0.0,
        "BF": 36.0,
        "Pitches": 144.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 0.0,
        "R": 0.1,
        "H": 0.6,
        "BB": 0.6,
        "SO": 0.8,
        "HR": 0.0,
        "BF": 3.6,
        "Pitches": 14.4
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 1.44,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.72,
        "BB_per_IP": 0.72,
        "SO_per_IP": 0.96,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 34,
      "totals": {
        "IP": 30.0,
        "ER": 15.0,
        "R": 17.0,
        "H": 25.0,
        "BB": 14.0,
        "SO": 27.0,
        "HR": 2.0,
        "BF": 134.0,
        "Pitches": 537.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4412,
        "R": 0.5,
        "H": 0.7353,
        "BB": 0.4118,
        "SO": 0.7941,
        "HR": 0.0588,
        "BF": 3.9412,
        "Pitches": 15.7941
      },
      "rates": {
        "ERA": 4.5,
        "WHIP": 1.3,
        "ER_per_IP": 0.5,
        "H_per_IP": 0.83333,
        "BB_per_IP": 0.46667,
        "SO_per_IP": 0.9,
        "HR_per_IP": 0.06667
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.242,
    "predicted_H": 0.784,
    "predicted_BB": 0.407,
    "predicted_SO": 0.763,
    "predicted_HR": 0.063,
    "predicted_ERA": 2.5464,
    "predicted_WHIP": 1.3925
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5428,
  "form_weight": 0.4572,
  "form_reliability": 0.5437,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.958,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5437,
    "prior_weight": 0.4563
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.242,
      "final": 0.1106,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 2.0,
      "form": 0.784,
      "final": 1.444,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.407,
      "final": 0.1861,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 0.763,
      "final": 0.8916,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.063,
      "final": 0.0288,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 2.5464,
      "final": 2.5464,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.3925,
      "final": 1.3925,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherTravis Adams
RoleMiddle Reliever
Projection Source-
Savant Quality Score-0.0086
ESPN Rank581
Movement AvailableTrue
Primary Pitch-
Movement Score-0.0219
Avg Velo89.3371
Avg Spin2344.9974
HB Inches0
IVB Inches0
Release Extension0
Pre IP1
Pre ER0
Pre H0
Pre BB0
Pre SO0
Season ERA6.4800
Season WHIP1.4400
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "MIN",
    "games": 81,
    "wins": 38,
    "losses": 43,
    "win_pct": 0.4691,
    "runs_scored": 390.0,
    "runs_allowed": 408.0,
    "run_differential": -18.0,
    "run_differential_per_game": -0.2222,
    "avg_runs_scored": 4.8148,
    "avg_runs_allowed": 5.037,
    "offense_index": 1.0685,
    "defense_index": 0.8946,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 5.9,
      "run_differential": -6.0
    },
    "available": true,
    "quality_score": -0.0534
  },
  "opponent": {
    "team": "TEX",
    "games": 79,
    "wins": 39,
    "losses": 40,
    "win_pct": 0.4937,
    "runs_scored": 320.0,
    "runs_allowed": 322.0,
    "run_differential": -2.0,
    "run_differential_per_game": -0.0253,
    "avg_runs_scored": 4.0506,
    "avg_runs_allowed": 4.0759,
    "offense_index": 0.8989,
    "defense_index": 1.1056,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 3.7,
      "avg_runs_allowed": 5.3,
      "run_differential": -16.0
    },
    "available": true,
    "quality_score": -0.0434
  },
  "edges": {
    "quality_edge": -0.01,
    "offense_edge": 0.0685,
    "opponent_offense_edge": -0.1011,
    "defense_strength": -0.1054,
    "opponent_defense_weakness": -0.1056,
    "recent_win_pct_edge": 0.1
  },
  "player_factors": {
    "ip": 1.0005,
    "run_prevention": 0.9949,
    "strikeout": 1.0078
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "701519",
    "profile": {
      "available": true,
      "pitcher_id": "701519",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 46.0,
        "k_percent": 27.0,
        "bb_percent": 9.5,
        "woba": 0.349,
        "xwoba": 0.33,
        "sweet_spot_percent": 40.4,
        "barrel_batted_rate": 10.6,
        "hard_hit_percent": 31.9,
        "avg_best_speed": 73.7884,
        "avg_hyper_speed": 93.9783,
        "whiff_percent": 29.7,
        "swing_percent": 48.9
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.348,
        "command_and_miss": 0.4743,
        "regression_edge": 0.5429,
        "xwoba_edge": -0.4286,
        "barrel_edge": -0.7333,
        "hard_hit_edge": 0.9143,
        "whiff_edge": 0.5714,
        "bb_edge": -0.075,
        "pitch_design_score": -0.0219
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "701519",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 12,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 12,
          "pitch_usage": 0.0,
          "release_speed": 89.33713054415583,
          "release_spin_rate": 2344.997365972707,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 12,
            "pitch_usage": 0.0,
            "release_speed": 89.33713054415583,
            "release_spin_rate": 2344.997365972707,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 89.3371,
          "release_spin_rate": 2344.9974,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.0219,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -0.1567,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": -0.0086,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0007,
      "strikeout_factor": 1.0219,
      "walk_factor": 1.0027,
      "homer_factor": 1.0157,
      "woba_minus_xwoba": 0.019,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "701519",
        "espn_id": 4424951,
        "player_name": "Travis Adams",
        "team": "MIN",
        "role": "pitcher",
        "espn_rank": 581,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 581,
          "gp_value": 12.0,
          "gp_rank": 352,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 6.48,
          "era_rank": null,
          "w_value": 1.0,
          "w_rank": 287,
          "l_value": 0.0,
          "l_rank": 430,
          "sv_value": 2.0,
          "sv_rank": 56,
          "hld_value": 1.0,
          "hld_rank": 198,
          "ip_value": 16.2,
          "ip_rank": 419,
          "h_value": 17.0,
          "h_rank": 386,
          "er_value": 12.0,
          "er_rank": 266,
          "hr_value": 4.0,
          "hr_rank": 199,
          "bb_value": 7.0,
          "bb_rank": 394,
          "k_value": 20.0,
          "k_rank": 352,
          "k_per_9_value": 10.8,
          "k_per_9_rank": 22,
          "whip_value": 1.44,
          "whip_rank": null,
          "war_value": -0.26,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 1.0,
        "factor": 1.0003,
        "adjusted": 1
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 1.0003,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0012,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0071,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 3.0,
        "factor": 1.0099,
        "adjusted": 3
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 13.0,
    "ER": 9,
    "H": 11,
    "BB": 5,
    "SO": 15,
    "HR": 4,
    "ERA": 6.230769230769231,
    "WHIP": 1.2307692307692308,
    "K9": 10.384615384615385,
    "HR9": 2.769230769230769,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "701519",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 12,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 12,
    "pitch_usage": 0.0,
    "release_speed": 89.33713054415583,
    "release_spin_rate": 2344.997365972707,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 12,
      "pitch_usage": 0.0,
      "release_speed": 89.33713054415583,
      "release_spin_rate": 2344.997365972707,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 89.3371,
    "release_spin_rate": 2344.9974,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.0219,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -0.1567,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 3.31,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.3983,
    "prior_weight": 0.6017
  },
  "role": "pitcher",
  "player_id": "701519",
  "report_date": "20260618_M",
  "season_year": 2026,
  "rows_used": 12,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 6.2,
        "ER": 4.0,
        "R": 4.0,
        "H": 7.0,
        "BB": 2.0,
        "SO": 8.0,
        "HR": 2.0,
        "BF": 28.0,
        "Pitches": 116.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.8,
        "R": 0.8,
        "H": 1.4,
        "BB": 0.4,
        "SO": 1.6,
        "HR": 0.4,
        "BF": 5.6,
        "Pitches": 23.2
      },
      "rates": {
        "ERA": 5.4,
        "WHIP": 1.35,
        "ER_per_IP": 0.6,
        "H_per_IP": 1.05,
        "BB_per_IP": 0.3,
        "SO_per_IP": 1.2,
        "HR_per_IP": 0.3
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 13.0,
        "ER": 9.0,
        "R": 9.0,
        "H": 11.0,
        "BB": 5.0,
        "SO": 15.0,
        "HR": 4.0,
        "BF": 54.0,
        "Pitches": 210.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.9,
        "R": 0.9,
        "H": 1.1,
        "BB": 0.5,
        "SO": 1.5,
        "HR": 0.4,
        "BF": 5.4,
        "Pitches": 21.0
      },
      "rates": {
        "ERA": 6.2308,
        "WHIP": 1.2308,
        "ER_per_IP": 0.69231,
        "H_per_IP": 0.84615,
        "BB_per_IP": 0.38462,
        "SO_per_IP": 1.15385,
        "HR_per_IP": 0.30769
      }
    },
    "season": {
      "games": 12,
      "totals": {
        "IP": 16.2,
        "ER": 12.0,
        "R": 12.0,
        "H": 17.0,
        "BB": 7.0,
        "SO": 20.0,
        "HR": 4.0,
        "BF": 74.0,
        "Pitches": 282.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 1.0,
        "R": 1.0,
        "H": 1.4167,
        "BB": 0.5833,
        "SO": 1.6667,
        "HR": 0.3333,
        "BF": 6.1667,
        "Pitches": 23.5
      },
      "rates": {
        "ERA": 6.48,
        "WHIP": 1.44,
        "ER_per_IP": 0.72,
        "H_per_IP": 1.02,
        "BB_per_IP": 0.42,
        "SO_per_IP": 1.2,
        "HR_per_IP": 0.24
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.638,
    "predicted_H": 1.103,
    "predicted_BB": 0.407,
    "predicted_SO": 1.173,
    "predicted_HR": 0.231,
    "predicted_ERA": 5.0653,
    "predicted_WHIP": 1.3329
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.6042,
  "form_weight": 0.3958,
  "form_reliability": 0.3983,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 3.31,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.3983,
    "prior_weight": 0.6017
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.638,
      "final": 0.2525,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 1.103,
      "final": 0.4365,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.407,
      "final": 0.1611,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 1.173,
      "final": 0.4643,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.231,
      "final": 0.0914,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 5.0653,
      "final": 5.0653,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.3329,
      "final": 1.3329,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherYoendrys Gómez
RoleMiddle Reliever
Projection Source-
Savant Quality Score-0.2541
ESPN Rank174
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H0
Pre BB1
Pre SO0
Season ERA3.8571
Season WHIP1.3429
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "MIN",
    "games": 81,
    "wins": 38,
    "losses": 43,
    "win_pct": 0.4691,
    "runs_scored": 390.0,
    "runs_allowed": 408.0,
    "run_differential": -18.0,
    "run_differential_per_game": -0.2222,
    "avg_runs_scored": 4.8148,
    "avg_runs_allowed": 5.037,
    "offense_index": 1.0685,
    "defense_index": 0.8946,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 5.9,
      "run_differential": -6.0
    },
    "available": true,
    "quality_score": -0.0534
  },
  "opponent": {
    "team": "TEX",
    "games": 79,
    "wins": 39,
    "losses": 40,
    "win_pct": 0.4937,
    "runs_scored": 320.0,
    "runs_allowed": 322.0,
    "run_differential": -2.0,
    "run_differential_per_game": -0.0253,
    "avg_runs_scored": 4.0506,
    "avg_runs_allowed": 4.0759,
    "offense_index": 0.8989,
    "defense_index": 1.1056,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 3.7,
      "avg_runs_allowed": 5.3,
      "run_differential": -16.0
    },
    "available": true,
    "quality_score": -0.0434
  },
  "edges": {
    "quality_edge": -0.01,
    "offense_edge": 0.0685,
    "opponent_offense_edge": -0.1011,
    "defense_strength": -0.1054,
    "opponent_defense_weakness": -0.1056,
    "recent_win_pct_edge": 0.1
  },
  "player_factors": {
    "ip": 1.0005,
    "run_prevention": 0.9949,
    "strikeout": 1.0078
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "672782",
    "profile": {
      "available": true,
      "pitcher_id": "672782",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 109.0,
        "k_percent": 22.1,
        "bb_percent": 11.0,
        "woba": 0.315,
        "xwoba": 0.356,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 11.8,
        "hard_hit_percent": 43.0,
        "avg_best_speed": 78.4976,
        "avg_hyper_speed": 94.4368,
        "whiff_percent": 25.2,
        "swing_percent": 46.9
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.7339,
        "command_and_miss": -0.1407,
        "regression_edge": -1.1714,
        "xwoba_edge": -1.1714,
        "barrel_edge": -1.0,
        "hard_hit_edge": -0.6714,
        "whiff_edge": -0.0714,
        "bb_edge": -0.45,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "672782",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": -0.2541,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0216,
      "strikeout_factor": 0.9977,
      "walk_factor": 1.0162,
      "homer_factor": 1.0639,
      "woba_minus_xwoba": -0.041,
      "regression_flag": "negative_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "672782",
        "espn_id": 42898,
        "player_name": "Yoendrys Gomez",
        "team": "MIN",
        "role": "pitcher",
        "espn_rank": 174,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 174,
          "gp_value": 29.0,
          "gp_rank": 80,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 3.8571,
          "era_rank": null,
          "w_value": 0.0,
          "w_rank": 404,
          "l_value": 0.0,
          "l_rank": 430,
          "sv_value": 7.0,
          "sv_rank": 20,
          "hld_value": 5.0,
          "hld_rank": 87,
          "ip_value": 35.0,
          "ip_rank": 186,
          "h_value": 30.0,
          "h_rank": 211,
          "er_value": 15.0,
          "er_rank": 209,
          "hr_value": 5.0,
          "hr_rank": 157,
          "bb_value": 17.0,
          "bb_rank": 157,
          "k_value": 34.0,
          "k_rank": 204,
          "k_per_9_value": 8.742857,
          "k_per_9_rank": 29,
          "whip_value": 1.3428,
          "whip_rank": null,
          "war_value": 0.57,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 1.0097,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 1.0097,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0073,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0288,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 0.999,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.0,
    "ER": 2,
    "H": 7,
    "BB": 4,
    "SO": 11,
    "HR": 0,
    "ERA": 2.0,
    "WHIP": 1.2222222222222223,
    "K9": 11.0,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-15T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "672782",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.95,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5816,
    "prior_weight": 0.4184
  },
  "role": "pitcher",
  "player_id": "672782",
  "report_date": "20260618_M",
  "season_year": 2026,
  "rows_used": 29,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.1,
        "ER": 2.0,
        "R": 2.0,
        "H": 5.0,
        "BB": 2.0,
        "SO": 3.0,
        "HR": 0.0,
        "BF": 20.0,
        "Pitches": 81.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4,
        "R": 0.4,
        "H": 1.0,
        "BB": 0.4,
        "SO": 0.6,
        "HR": 0.0,
        "BF": 4.0,
        "Pitches": 16.2
      },
      "rates": {
        "ERA": 4.1538,
        "WHIP": 1.6154,
        "ER_per_IP": 0.46154,
        "H_per_IP": 1.15385,
        "BB_per_IP": 0.46154,
        "SO_per_IP": 0.69231,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.0,
        "ER": 2.0,
        "R": 2.0,
        "H": 7.0,
        "BB": 4.0,
        "SO": 11.0,
        "HR": 0.0,
        "BF": 38.0,
        "Pitches": 160.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.7,
        "BB": 0.4,
        "SO": 1.1,
        "HR": 0.0,
        "BF": 3.8,
        "Pitches": 16.0
      },
      "rates": {
        "ERA": 2.0,
        "WHIP": 1.2222,
        "ER_per_IP": 0.22222,
        "H_per_IP": 0.77778,
        "BB_per_IP": 0.44444,
        "SO_per_IP": 1.22222,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 29,
      "totals": {
        "IP": 35.0,
        "ER": 15.0,
        "R": 17.0,
        "H": 30.0,
        "BB": 17.0,
        "SO": 34.0,
        "HR": 5.0,
        "BF": 154.0,
        "Pitches": 593.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.5172,
        "R": 0.5862,
        "H": 1.0345,
        "BB": 0.5862,
        "SO": 1.1724,
        "HR": 0.1724,
        "BF": 5.3103,
        "Pitches": 20.4483
      },
      "rates": {
        "ERA": 3.8571,
        "WHIP": 1.3429,
        "ER_per_IP": 0.42857,
        "H_per_IP": 0.85714,
        "BB_per_IP": 0.48571,
        "SO_per_IP": 0.97143,
        "HR_per_IP": 0.14286
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.442,
    "predicted_H": 1.005,
    "predicted_BB": 0.436,
    "predicted_SO": 0.972,
    "predicted_HR": 0.081,
    "predicted_ERA": 3.8292,
    "predicted_WHIP": 1.3873
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5268,
  "form_weight": 0.4732,
  "form_reliability": 0.5816,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.95,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5816,
    "prior_weight": 0.4184
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.442,
      "final": 0.2092,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 1.005,
      "final": 0.4756,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 0.436,
      "final": 0.7331,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 0.972,
      "final": 0.9867,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.081,
      "final": 0.0383,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.8292,
      "final": 3.8292,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.3873,
      "final": 1.3873,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Byron Buxton (621439) · BATTER · CF · Team MIN
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 233
All-history rows before 20260618: 233
System season_avg: 0.2750
Data season_avg (2026 season-to-date): 0.2725
Diff (system - data): 0.0025
System opponent_avg: 0.2500

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2060.0000.000Hitting_2B0.2270.000-0.2270.000
predicted_3B0.0160.0000.000Hitting_3B0.0170.000-0.0170.000
predicted_AB4.5004.0004.000Hitting_AB4.2534.000-0.2530.000
predicted_AVG0.2630.2500.250Hitting_AVG0.2720.250-0.0220.000
predicted_BB0.3331.0000.000Hitting_BB0.3431.0000.6570.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H1.1801.0001.000Hitting_H1.1591.000-0.1590.000
predicted_HR0.3500.0000.000Hitting_HR0.3820.000-0.3820.000
predicted_OBP0.3690.4000.250Hitting_OBP0.3320.4000.0680.000
predicted_R0.8101.0001.000Hitting_R0.8453.0000.155-2.000
predicted_RBI0.6700.0001.000Hitting_RBI0.6180.000-0.6180.000
predicted_SLG0.6020.2500.250Hitting_SLG0.6030.250-0.3530.000
predicted_SO1.1750.0001.000Hitting_SO1.2360.000-1.2360.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics4
Deboosted Metrics7
Better Metrics5
Worse Metrics6
Biggest Boostpredicted_BB: 0.3330 -> 1.0000 (boost 0.6670, better)
Biggest Deboostpredicted_SO: 1.1750 -> 0.0000 (deboost -1.1750, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend65151predicted_R: 0.8100 -> 0.8813 (boost 0.0713, better)predicted_AB: 4.5000 -> 4.2823 (deboost -0.2177, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_SLG: 0.6603 -> 0.6234 (deboost -0.0369, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71625predicted_RBI: 0.6721 -> 1.0000 (boost 0.3279, better)predicted_HR: 0.3831 -> 0.0000 (deboost -0.3831, worse)AB rounded to 4 (raw=4.50), rates preserved: AVG=0.278 HR/AB=0.085
5consistency_constraints11010predicted_R: 0.8835 -> 1.0000 (boost 0.1165, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.6234 -> 0.2500 (deboost -0.3734, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference31221predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_RBI: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2500 -> 0.6234 (boost 0.3734, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "621439",
  "player_name": "Byron Buxton",
  "position": "CF",
  "team": "MIN",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.206,
        "predicted_3B": 0.016,
        "predicted_AB": 4.5,
        "predicted_AVG": 0.263,
        "predicted_BB": 0.333,
        "predicted_H": 1.18,
        "predicted_HR": 0.35,
        "predicted_OBP": 0.369,
        "predicted_R": 0.81,
        "predicted_RBI": 0.67,
        "predicted_SLG": 0.602,
        "predicted_SO": 1.175
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2431,
        "predicted_3B": 0.0135,
        "predicted_AB": 4.2823,
        "predicted_AVG": 0.2942,
        "predicted_BB": 0.3423,
        "predicted_H": 1.2488,
        "predicted_HBP": 0.029,
        "predicted_HR": 0.3842,
        "predicted_OBP": 0.3798,
        "predicted_R": 0.8813,
        "predicted_RBI": 0.6704,
        "predicted_SLG": 0.6603,
        "predicted_SO": 1.1497
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.206,
          "after": 0.2431,
          "delta": 0.0371,
          "percent_delta": 0.1801,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.016,
          "after": 0.0135,
          "delta": -0.0025,
          "percent_delta": -0.1563,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.5,
          "after": 4.2823,
          "delta": -0.2177,
          "percent_delta": -0.0484,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.263,
          "after": 0.2942,
          "delta": 0.0312,
          "percent_delta": 0.1186,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.333,
          "after": 0.3423,
          "delta": 0.0093,
          "percent_delta": 0.0279,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.18,
          "after": 1.2488,
          "delta": 0.0688,
          "percent_delta": 0.0583,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.35,
          "after": 0.3842,
          "delta": 0.0342,
          "percent_delta": 0.0977,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.369,
          "after": 0.3798,
          "delta": 0.0108,
          "percent_delta": 0.0293,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.81,
          "after": 0.8813,
          "delta": 0.0713,
          "percent_delta": 0.088,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.67,
          "after": 0.6704,
          "delta": 0.0004,
          "percent_delta": 0.0006,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.602,
          "after": 0.6603,
          "delta": 0.0583,
          "percent_delta": 0.0968,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.175,
          "after": 1.1497,
          "delta": -0.0253,
          "percent_delta": -0.0215,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 5,
        "deboosted_metrics": 1,
        "better_metrics": 5,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.81,
          "after": 0.8813,
          "delta": 0.0713,
          "percent_delta": 0.088,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.5,
          "after": 4.2823,
          "delta": -0.2177,
          "percent_delta": -0.0484,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 63
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2431,
        "predicted_3B": 0.0135,
        "predicted_AB": 4.2823,
        "predicted_AVG": 0.2919,
        "predicted_BB": 0.3431,
        "predicted_H": 1.25,
        "predicted_HBP": 0.029,
        "predicted_HR": 0.3831,
        "predicted_OBP": 0.3444,
        "predicted_R": 0.8835,
        "predicted_RBI": 0.6721,
        "predicted_SLG": 0.6234,
        "predicted_SO": 1.1469
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2431,
          "after": 0.2431,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0135,
          "after": 0.0135,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.2823,
          "after": 4.2823,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2942,
          "after": 0.2919,
          "delta": -0.0023,
          "percent_delta": -0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3423,
          "after": 0.3431,
          "delta": 0.0008,
          "percent_delta": 0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.2488,
          "after": 1.25,
          "delta": 0.0012,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.029,
          "after": 0.029,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.3842,
          "after": 0.3831,
          "delta": -0.0011,
          "percent_delta": -0.0029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3798,
          "after": 0.3444,
          "delta": -0.0354,
          "percent_delta": -0.0932,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.8813,
          "after": 0.8835,
          "delta": 0.0022,
          "percent_delta": 0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6704,
          "after": 0.6721,
          "delta": 0.0017,
          "percent_delta": 0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.6603,
          "after": 0.6234,
          "delta": -0.0369,
          "percent_delta": -0.0559,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1497,
          "after": 1.1469,
          "delta": -0.0028,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.6603,
          "after": 0.6234,
          "delta": -0.0369,
          "percent_delta": -0.0559,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.50), rates preserved: AVG=0.278 HR/AB=0.085",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2431,
          "after": 0.0,
          "delta": -0.2431,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0135,
          "after": 0.0,
          "delta": -0.0135,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.2823,
          "after": 4.0,
          "delta": -0.2823,
          "percent_delta": -0.0659,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3431,
          "after": 0.0,
          "delta": -0.3431,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.25,
          "after": 1.0,
          "delta": -0.25,
          "percent_delta": -0.2,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.029,
          "after": 0.0,
          "delta": -0.029,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.3831,
          "after": 0.0,
          "delta": -0.3831,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6721,
          "after": 1.0,
          "delta": 0.3279,
          "percent_delta": 0.4879,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1469,
          "after": 1.0,
          "delta": -0.1469,
          "percent_delta": -0.1281,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.6721,
          "after": 1.0,
          "delta": 0.3279,
          "percent_delta": 0.4879,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_HR",
          "before": 0.3831,
          "after": 0.0,
          "delta": -0.3831,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.8835,
          "after": 1.0,
          "delta": 0.1165,
          "percent_delta": 0.1319,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.8835,
          "after": 1.0,
          "delta": 0.1165,
          "percent_delta": 0.1319,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2919,
          "after": 0.25,
          "delta": -0.0419,
          "percent_delta": -0.1435,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3444,
          "after": 0.25,
          "delta": -0.0944,
          "percent_delta": -0.2741,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.6234,
          "after": 0.25,
          "delta": -0.3734,
          "percent_delta": -0.599,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.6234,
          "after": 0.25,
          "delta": -0.3734,
          "percent_delta": -0.599,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2919,
        "predicted_BB": 1.0,
        "predicted_CF": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3444,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.6234,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2919,
          "delta": 0.0419,
          "percent_delta": 0.1676,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3444,
          "delta": 0.0944,
          "percent_delta": 0.3778,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.6234,
          "delta": 0.3734,
          "percent_delta": 1.4935,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.6234,
          "delta": 0.3734,
          "percent_delta": 1.4935,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.206,
        "after": 0.0,
        "delta": -0.206,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.016,
        "after": 0.0,
        "delta": -0.016,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.5,
        "after": 4.0,
        "delta": -0.5,
        "percent_delta": -0.1111,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.263,
        "after": 0.2919,
        "delta": 0.0289,
        "percent_delta": 0.1099,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.333,
        "after": 1.0,
        "delta": 0.667,
        "percent_delta": 2.003,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.18,
        "after": 1.0,
        "delta": -0.18,
        "percent_delta": -0.1525,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.35,
        "after": 0.0,
        "delta": -0.35,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.369,
        "after": 0.3444,
        "delta": -0.0246,
        "percent_delta": -0.0667,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.81,
        "after": 1.0,
        "delta": 0.19,
        "percent_delta": 0.2346,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.67,
        "after": 0.0,
        "delta": -0.67,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.602,
        "after": 0.6234,
        "delta": 0.0214,
        "percent_delta": 0.0355,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.175,
        "after": 0.0,
        "delta": -1.175,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 4,
      "deboosted_metrics": 7,
      "better_metrics": 5,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.333,
        "after": 1.0,
        "delta": 0.667,
        "percent_delta": 2.003,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 1.175,
        "after": 0.0,
        "delta": -1.175,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.206-
predicted_3B0.016-
predicted_AB4.500-
predicted_AVG0.263-
predicted_BB0.333-
predicted_H1.180-
predicted_HR0.350-
predicted_OBP0.369-
predicted_R0.810-
predicted_RBI0.670-
predicted_SLG0.602-
predicted_SO1.175-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2430.037
predicted_3B0.013-0.003
predicted_AB4.282-0.218
predicted_AVG0.2940.031
predicted_BB0.3420.009
predicted_H1.2490.069
predicted_HBP0.029-
predicted_HR0.3840.034
predicted_OBP0.3800.011
predicted_R0.8810.071
predicted_RBI0.6700.000
predicted_SLG0.6600.058
predicted_SO1.150-0.025
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2430.000
predicted_3B0.0130.000
predicted_AB4.2820.000
predicted_AVG0.292-0.002
predicted_BB0.3430.001
predicted_H1.2500.001
predicted_HBP0.0290.000
predicted_HR0.383-0.001
predicted_OBP0.344-0.035
predicted_R0.8830.002
predicted_RBI0.6720.002
predicted_SLG0.623-0.037
predicted_SO1.147-0.003
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.50), rates preserved: AVG=0.278 HR/AB=0.085

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.243
predicted_3B0.000-0.013
predicted_AB4.000-0.282
predicted_AVG0.250-0.042
predicted_BB0.000-0.343
predicted_H1.000-0.250
predicted_HR0.000-0.383
predicted_OBP0.250-0.094
predicted_R1.0000.117
predicted_RBI1.0000.328
predicted_SLG0.250-0.373
predicted_SO1.000-0.147
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R1.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 63
Reference playing time: 4.500
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.00010.0003.0000.0003.0004.0008.0002.0006.0000.50000.54551.10000.50000.15000.20000.10000.3000
last_100.2010-37.00015.0003.0000.0006.0009.00011.0004.00010.0000.40540.46340.97300.40540.16220.24320.10810.2703
season0.6063-258.00071.00013.0001.00023.00036.00051.00021.00074.0000.27520.33570.60080.27520.08910.13950.08140.2868
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2940
predicted_3B0.0100
predicted_AB3.9840
predicted_AVG0.3370
predicted_BB0.3550
predicted_H1.3430
predicted_HBP0.0290
predicted_HR0.4310
predicted_OBP0.3946
predicted_R0.9790
predicted_RBI0.6710
predicted_SLG0.7401
predicted_SO1.1150
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.20600.29400.2431model_form_blend
predicted_3B0.01600.01000.0135model_form_blend
predicted_AB4.50003.98404.2823model_form_blend
predicted_AVG0.26300.33700.2942model_form_blend
predicted_BB0.33300.35500.3423model_form_blend
predicted_H1.18001.34301.2488model_form_blend
predicted_HBP-0.02900.0290form_only
predicted_HR0.35000.43100.3842model_form_blend
predicted_OBP0.36900.39460.3798model_form_blend
predicted_R0.81000.97900.8813model_form_blend
predicted_RBI0.67000.67100.6704model_form_blend
predicted_SLG0.60200.74010.6603model_form_blend
predicted_SO1.17501.11501.1497model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date233
Season rows before report date233
Report year2026
Profile rows used63
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB4
H1
2B0
3B0
HR0
R1
RBI0
BB1
SO0
SF0
HBP0
season_avg0.275

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB1
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB1
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R3
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedCF
gameID20260616_MIN@TEX
game_typefull
mlbID621439
playerID621439
playerNameByron Buxton
posCF
startedTrue
startingPositionCF
teamMIN
teamID17
game_date2026-06-16
sl_k_percent26.1
sl_bb_percent7.4
sl_woba0.397
sl_xwoba0.35
sl_xba0.245
sl_xslg0.515
sl_sweet_spot_percent33.0
sl_barrel_batted_rate18.9
sl_hard_hit_percent49.7
sl_exit_velocity_avg91.1
sl_launch_angle_avg21.1
sl_whiff_percent31.1
sl_swing_percent53.4
Trevor Larnach (663616) · BATTER · LF · Team MIN
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 173
All-history rows before 20260618: 173
System season_avg: 0.2640
Data season_avg (2026 season-to-date): 0.2733
Diff (system - data): -0.0093
System opponent_avg: 0.6670

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1750.0000.000Hitting_2B0.1850.000-0.1850.000
predicted_3B0.0180.0000.000Hitting_3B0.0290.000-0.0290.000
predicted_AB3.1934.0003.000Hitting_AB3.4056.0000.595-2.000
predicted_AVG0.2460.2500.333Hitting_AVG0.2730.667-0.023-0.417
predicted_BB0.4211.0000.000Hitting_BB0.5200.0000.4801.000
predicted_CS-0.0000.000BaseRunning_CS0.0230.000-0.0230.000
predicted_H0.3401.0001.000Hitting_H0.9314.0000.069-3.000
predicted_HR0.0500.0000.000Hitting_HR0.0581.000-0.058-1.000
predicted_OBP0.3150.4000.333Hitting_OBP0.3780.6670.022-0.267
predicted_R0.5441.0001.000Hitting_R0.6132.0000.387-1.000
predicted_RBI0.1500.0000.000Hitting_RBI0.3411.000-0.341-1.000
predicted_SLG0.3950.2500.333Hitting_SLG0.3961.167-0.146-0.917
predicted_SO0.7372.0001.000Hitting_SO0.7750.0001.2252.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics5
Deboosted Metrics6
Better Metrics4
Worse Metrics7
Biggest Boostpredicted_SO: 0.7370 -> 2.0000 (boost 1.2630, worse)
Biggest Deboostpredicted_2B: 0.1750 -> 0.0000 (deboost -0.1750, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend55050predicted_H: 0.3400 -> 0.5760 (boost 0.2360, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.4029 -> 0.3020 (deboost -0.1009, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling82617predicted_H: 0.5766 -> 1.0000 (boost 0.4234, better)predicted_BB: 0.3855 -> 0.0000 (deboost -0.3855, worse)AB rounded to 3 (raw=3.25), rates preserved: AVG=0.177 HR/AB=0.022
5consistency_constraints11010predicted_R: 0.5238 -> 1.0000 (boost 0.4762, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.1774 -> 0.3330 (boost 0.1556, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference33021predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.1774 (deboost -0.1556, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "663616",
  "player_name": "Trevor Larnach",
  "position": "LF",
  "team": "MIN",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.175,
        "predicted_3B": 0.018,
        "predicted_AB": 3.193,
        "predicted_AVG": 0.246,
        "predicted_BB": 0.421,
        "predicted_H": 0.34,
        "predicted_HR": 0.05,
        "predicted_OBP": 0.315,
        "predicted_R": 0.544,
        "predicted_RBI": 0.15,
        "predicted_SLG": 0.395,
        "predicted_SO": 0.737
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1585,
        "predicted_3B": 0.0151,
        "predicted_AB": 3.2504,
        "predicted_AVG": 0.2572,
        "predicted_BB": 0.3846,
        "predicted_H": 0.576,
        "predicted_HBP": 0.051,
        "predicted_HR": 0.0723,
        "predicted_OBP": 0.3289,
        "predicted_R": 0.5225,
        "predicted_RBI": 0.1992,
        "predicted_SLG": 0.4029,
        "predicted_SO": 0.7316
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.175,
          "after": 0.1585,
          "delta": -0.0165,
          "percent_delta": -0.0943,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.018,
          "after": 0.0151,
          "delta": -0.0029,
          "percent_delta": -0.1611,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.193,
          "after": 3.2504,
          "delta": 0.0574,
          "percent_delta": 0.018,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.246,
          "after": 0.2572,
          "delta": 0.0112,
          "percent_delta": 0.0455,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.421,
          "after": 0.3846,
          "delta": -0.0364,
          "percent_delta": -0.0865,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.34,
          "after": 0.576,
          "delta": 0.236,
          "percent_delta": 0.6941,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.05,
          "after": 0.0723,
          "delta": 0.0223,
          "percent_delta": 0.446,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.315,
          "after": 0.3289,
          "delta": 0.0139,
          "percent_delta": 0.0441,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.544,
          "after": 0.5225,
          "delta": -0.0215,
          "percent_delta": -0.0395,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.15,
          "after": 0.1992,
          "delta": 0.0492,
          "percent_delta": 0.328,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.395,
          "after": 0.4029,
          "delta": 0.0079,
          "percent_delta": 0.02,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.737,
          "after": 0.7316,
          "delta": -0.0054,
          "percent_delta": -0.0073,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 5,
        "deboosted_metrics": 0,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.34,
          "after": 0.576,
          "delta": 0.236,
          "percent_delta": 0.6941,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 57
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1585,
        "predicted_3B": 0.0151,
        "predicted_AB": 3.2504,
        "predicted_AVG": 0.1774,
        "predicted_BB": 0.3855,
        "predicted_H": 0.5766,
        "predicted_HBP": 0.051,
        "predicted_HR": 0.0721,
        "predicted_OBP": 0.2646,
        "predicted_R": 0.5238,
        "predicted_RBI": 0.1997,
        "predicted_SLG": 0.302,
        "predicted_SO": 0.7298
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1585,
          "after": 0.1585,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0151,
          "after": 0.0151,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.2504,
          "after": 3.2504,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2572,
          "after": 0.1774,
          "delta": -0.0798,
          "percent_delta": -0.3103,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3846,
          "after": 0.3855,
          "delta": 0.0009,
          "percent_delta": 0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.576,
          "after": 0.5766,
          "delta": 0.0006,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.051,
          "after": 0.051,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0723,
          "after": 0.0721,
          "delta": -0.0002,
          "percent_delta": -0.0028,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3289,
          "after": 0.2646,
          "delta": -0.0643,
          "percent_delta": -0.1955,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5225,
          "after": 0.5238,
          "delta": 0.0013,
          "percent_delta": 0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.1992,
          "after": 0.1997,
          "delta": 0.0005,
          "percent_delta": 0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4029,
          "after": 0.302,
          "delta": -0.1009,
          "percent_delta": -0.2504,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7316,
          "after": 0.7298,
          "delta": -0.0018,
          "percent_delta": -0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4029,
          "after": 0.302,
          "delta": -0.1009,
          "percent_delta": -0.2504,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.25), rates preserved: AVG=0.177 HR/AB=0.022",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1585,
          "after": 0.0,
          "delta": -0.1585,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0151,
          "after": 0.0,
          "delta": -0.0151,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.2504,
          "after": 3.0,
          "delta": -0.2504,
          "percent_delta": -0.077,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3855,
          "after": 0.0,
          "delta": -0.3855,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.5766,
          "after": 1.0,
          "delta": 0.4234,
          "percent_delta": 0.7343,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.051,
          "after": 0.0,
          "delta": -0.051,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0721,
          "after": 0.0,
          "delta": -0.0721,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.1997,
          "after": 0.0,
          "delta": -0.1997,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7298,
          "after": 1.0,
          "delta": 0.2702,
          "percent_delta": 0.3702,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 2,
        "deboosted_metrics": 6,
        "better_metrics": 1,
        "worse_metrics": 7,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.5766,
          "after": 1.0,
          "delta": 0.4234,
          "percent_delta": 0.7343,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3855,
          "after": 0.0,
          "delta": -0.3855,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5238,
          "after": 1.0,
          "delta": 0.4762,
          "percent_delta": 0.9091,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5238,
          "after": 1.0,
          "delta": 0.4762,
          "percent_delta": 0.9091,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1774,
          "after": 0.333,
          "delta": 0.1556,
          "percent_delta": 0.8771,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2646,
          "after": 0.333,
          "delta": 0.0684,
          "percent_delta": 0.2585,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.302,
          "after": 0.333,
          "delta": 0.031,
          "percent_delta": 0.1026,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1774,
          "after": 0.333,
          "delta": 0.1556,
          "percent_delta": 0.8771,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.1774,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_LF": 0.0,
        "predicted_OBP": 0.2646,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.302,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1774,
          "delta": -0.1556,
          "percent_delta": -0.4673,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2646,
          "delta": -0.0684,
          "percent_delta": -0.2054,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.302,
          "delta": -0.031,
          "percent_delta": -0.0931,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1774,
          "delta": -0.1556,
          "percent_delta": -0.4673,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.175,
        "after": 0.0,
        "delta": -0.175,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.018,
        "after": 0.0,
        "delta": -0.018,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.193,
        "after": 4.0,
        "delta": 0.807,
        "percent_delta": 0.2527,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.246,
        "after": 0.1774,
        "delta": -0.0686,
        "percent_delta": -0.2789,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.421,
        "after": 1.0,
        "delta": 0.579,
        "percent_delta": 1.3753,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.34,
        "after": 1.0,
        "delta": 0.66,
        "percent_delta": 1.9412,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.05,
        "after": 0.0,
        "delta": -0.05,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.315,
        "after": 0.2646,
        "delta": -0.0504,
        "percent_delta": -0.16,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.544,
        "after": 1.0,
        "delta": 0.456,
        "percent_delta": 0.8382,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.15,
        "after": 0.0,
        "delta": -0.15,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.395,
        "after": 0.302,
        "delta": -0.093,
        "percent_delta": -0.2354,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.737,
        "after": 2.0,
        "delta": 1.263,
        "percent_delta": 1.7137,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 5,
      "deboosted_metrics": 6,
      "better_metrics": 4,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.737,
        "after": 2.0,
        "delta": 1.263,
        "percent_delta": 1.7137,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_2B",
        "before": 0.175,
        "after": 0.0,
        "delta": -0.175,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.175-
predicted_3B0.018-
predicted_AB3.193-
predicted_AVG0.246-
predicted_BB0.421-
predicted_H0.340-
predicted_HR0.050-
predicted_OBP0.315-
predicted_R0.544-
predicted_RBI0.150-
predicted_SLG0.395-
predicted_SO0.737-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.159-0.016
predicted_3B0.015-0.003
predicted_AB3.2500.057
predicted_AVG0.2570.011
predicted_BB0.385-0.036
predicted_H0.5760.236
predicted_HBP0.051-
predicted_HR0.0720.022
predicted_OBP0.3290.014
predicted_R0.522-0.022
predicted_RBI0.1990.049
predicted_SLG0.4030.008
predicted_SO0.732-0.005
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1590.000
predicted_3B0.0150.000
predicted_AB3.2500.000
predicted_AVG0.177-0.080
predicted_BB0.3860.001
predicted_H0.5770.001
predicted_HBP0.0510.000
predicted_HR0.072-0.000
predicted_OBP0.265-0.064
predicted_R0.5240.001
predicted_RBI0.2000.001
predicted_SLG0.302-0.101
predicted_SO0.730-0.002
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.25), rates preserved: AVG=0.177 HR/AB=0.022

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.159
predicted_3B0.000-0.015
predicted_AB3.000-0.250
predicted_AVG0.3330.156
predicted_BB0.000-0.386
predicted_H1.0000.423
predicted_HR0.000-0.072
predicted_OBP0.3330.068
predicted_R1.0000.476
predicted_RBI0.000-0.200
predicted_SLG0.3330.031
predicted_SO1.0000.270
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R1.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 57
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0006.0000.0000.0001.0001.0002.0001.0003.0000.33330.36840.50000.33330.05560.05560.05560.1667
last_100.2010-31.0008.0001.0000.0001.0001.0004.0002.0007.0000.25810.32350.38710.25810.03230.03230.06450.2258
season0.6057-182.00048.00010.0001.0004.00017.00031.00024.00042.0000.26370.35890.39560.26370.02200.09340.13190.2308
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1350
predicted_3B0.0110
predicted_AB3.3320
predicted_AVG0.2732
predicted_BB0.3330
predicted_H0.9110
predicted_HBP0.0510
predicted_HR0.1040
predicted_OBP0.3487
predicted_R0.4920
predicted_RBI0.2690
predicted_SLG0.4141
predicted_SO0.7240
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.17500.13500.1585model_form_blend
predicted_3B0.01800.01100.0151model_form_blend
predicted_AB3.19303.33203.2504model_form_blend
predicted_AVG0.24600.27320.2572model_form_blend
predicted_BB0.42100.33300.3846model_form_blend
predicted_H0.34000.91100.5760model_form_blend
predicted_HBP-0.05100.0510form_only
predicted_HR0.05000.10400.0723model_form_blend
predicted_OBP0.31500.34870.3289model_form_blend
predicted_R0.54400.49200.5225model_form_blend
predicted_RBI0.15000.26900.1992model_form_blend
predicted_SLG0.39500.41410.4029model_form_blend
predicted_SO0.73700.72400.7316model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date173
Season rows before report date173
Report year2026
Profile rows used57
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB4
H1
2B0
3B0
HR0
R1
RBI0
BB1
SO2
SF0
HBP0
season_avg0.264

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB6
Hitting_AVG0.667
Hitting_BB0
Hitting_GIDP0
Hitting_H4
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R2
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB7
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedLF
gameID20260616_MIN@TEX
game_typefull
mlbID663616
playerID663616
playerNameTrevor Larnach
posLF
startedTrue
startingPositionLF
teamMIN
teamID17
game_date2026-06-16
sl_k_percent19.8
sl_bb_percent12.7
sl_woba0.343
sl_xwoba0.327
sl_xba0.248
sl_xslg0.372
sl_sweet_spot_percent37.9
sl_barrel_batted_rate6.4
sl_hard_hit_percent30.0
sl_exit_velocity_avg86.3
sl_launch_angle_avg13.8
sl_whiff_percent27.0
sl_swing_percent41.8
Royce Lewis (668904) · BATTER · 1B · Team MIN
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 129
All-history rows before 20260618: 129
System season_avg: 0.2060
Data season_avg (2026 season-to-date): 0.1795
Diff (system - data): 0.0265
System opponent_avg: 0.1250
System season_avg diverges from 2026 season-to-date by 0.0265. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1220.0000.000Hitting_2B0.1010.000-0.1010.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.6404.0004.000Hitting_AB3.4115.0000.589-1.000
predicted_AVG0.2420.5000.250Hitting_AVG0.1800.2000.3200.300
predicted_BB0.3900.0000.000Hitting_BB0.3950.000-0.3950.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.8802.0001.000Hitting_H0.6121.0001.3881.000
predicted_HR0.1802.0000.000Hitting_HR0.1160.0001.8842.000
predicted_OBP0.3210.5000.250Hitting_OBP0.2730.2000.2270.300
predicted_R0.4151.0000.000Hitting_R0.3801.0000.6200.000
predicted_RBI0.5902.0001.000Hitting_RBI0.4652.0001.5350.000
predicted_SLG0.4422.0000.250Hitting_SLG0.3110.2001.6891.800
predicted_SO1.0730.0001.000Hitting_SO1.1552.000-1.155-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics8
Boosted Metrics5
Deboosted Metrics3
Better Metrics6
Worse Metrics2
Biggest Boostpredicted_HR: 0.1800 -> 2.0000 (boost 1.8200, better)
Biggest Deboostpredicted_SO: 1.0730 -> 0.0000 (deboost -1.0730, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend32130predicted_R: 0.4150 -> 0.4720 (boost 0.0570, better)predicted_SO: 1.0730 -> 1.0180 (deboost -0.0550, better)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_SLG: 0.4563 -> 0.4448 (deboost -0.0115, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling63333predicted_RBI: 0.6141 -> 1.0000 (boost 0.3859, better)predicted_BB: 0.3873 -> 0.0000 (deboost -0.3873, worse)AB rounded to 4 (raw=3.64), rates preserved: AVG=0.245 HR/AB=0.053
5consistency_constraints10101-predicted_R: 0.4732 -> 0.0000 (deboost -0.4732, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context20202-predicted_SLG: 0.4448 -> 0.2500 (deboost -0.1948, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference54150predicted_HR: 0.0000 -> 2.0000 (boost 2.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final22020predicted_SLG: 0.2500 -> 0.4448 (boost 0.1948, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "668904",
  "player_name": "Royce Lewis",
  "position": "1B",
  "team": "MIN",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.122,
        "predicted_3B": 0.0,
        "predicted_AB": 3.64,
        "predicted_AVG": 0.242,
        "predicted_BB": 0.39,
        "predicted_H": 0.88,
        "predicted_HR": 0.18,
        "predicted_OBP": 0.321,
        "predicted_R": 0.415,
        "predicted_RBI": 0.59,
        "predicted_SLG": 0.442,
        "predicted_SO": 1.073
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1365,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.6145,
        "predicted_AVG": 0.2469,
        "predicted_BB": 0.3864,
        "predicted_H": 0.8917,
        "predicted_HBP": 0.031,
        "predicted_HR": 0.1929,
        "predicted_OBP": 0.3227,
        "predicted_R": 0.472,
        "predicted_RBI": 0.6126,
        "predicted_SLG": 0.4563,
        "predicted_SO": 1.018
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.122,
          "after": 0.1365,
          "delta": 0.0145,
          "percent_delta": 0.1189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.64,
          "after": 3.6145,
          "delta": -0.0255,
          "percent_delta": -0.007,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.242,
          "after": 0.2469,
          "delta": 0.0049,
          "percent_delta": 0.0202,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.39,
          "after": 0.3864,
          "delta": -0.0036,
          "percent_delta": -0.0092,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.88,
          "after": 0.8917,
          "delta": 0.0117,
          "percent_delta": 0.0133,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.18,
          "after": 0.1929,
          "delta": 0.0129,
          "percent_delta": 0.0717,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.321,
          "after": 0.3227,
          "delta": 0.0017,
          "percent_delta": 0.0053,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.415,
          "after": 0.472,
          "delta": 0.057,
          "percent_delta": 0.1373,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.59,
          "after": 0.6126,
          "delta": 0.0226,
          "percent_delta": 0.0383,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.442,
          "after": 0.4563,
          "delta": 0.0143,
          "percent_delta": 0.0324,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.073,
          "after": 1.018,
          "delta": -0.055,
          "percent_delta": -0.0513,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.415,
          "after": 0.472,
          "delta": 0.057,
          "percent_delta": 0.1373,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.073,
          "after": 1.018,
          "delta": -0.055,
          "percent_delta": -0.0513,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 41
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1365,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.6145,
        "predicted_AVG": 0.2469,
        "predicted_BB": 0.3873,
        "predicted_H": 0.8926,
        "predicted_HBP": 0.031,
        "predicted_HR": 0.1924,
        "predicted_OBP": 0.3198,
        "predicted_R": 0.4732,
        "predicted_RBI": 0.6141,
        "predicted_SLG": 0.4448,
        "predicted_SO": 1.0156
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1365,
          "after": 0.1365,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6145,
          "after": 3.6145,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2469,
          "after": 0.2469,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3864,
          "after": 0.3873,
          "delta": 0.0009,
          "percent_delta": 0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8917,
          "after": 0.8926,
          "delta": 0.0009,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.031,
          "after": 0.031,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1929,
          "after": 0.1924,
          "delta": -0.0005,
          "percent_delta": -0.0026,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3227,
          "after": 0.3198,
          "delta": -0.0029,
          "percent_delta": -0.009,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.472,
          "after": 0.4732,
          "delta": 0.0012,
          "percent_delta": 0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6126,
          "after": 0.6141,
          "delta": 0.0015,
          "percent_delta": 0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4563,
          "after": 0.4448,
          "delta": -0.0115,
          "percent_delta": -0.0252,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.018,
          "after": 1.0156,
          "delta": -0.0024,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4563,
          "after": 0.4448,
          "delta": -0.0115,
          "percent_delta": -0.0252,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.64), rates preserved: AVG=0.245 HR/AB=0.053",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1365,
          "after": 0.0,
          "delta": -0.1365,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6145,
          "after": 4.0,
          "delta": 0.3855,
          "percent_delta": 0.1067,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3873,
          "after": 0.0,
          "delta": -0.3873,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8926,
          "after": 1.0,
          "delta": 0.1074,
          "percent_delta": 0.1203,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.031,
          "after": 0.0,
          "delta": -0.031,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1924,
          "after": 0.0,
          "delta": -0.1924,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6141,
          "after": 1.0,
          "delta": 0.3859,
          "percent_delta": 0.6284,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0156,
          "after": 1.0,
          "delta": -0.0156,
          "percent_delta": -0.0154,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 3,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.6141,
          "after": 1.0,
          "delta": 0.3859,
          "percent_delta": 0.6284,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3873,
          "after": 0.0,
          "delta": -0.3873,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4732,
          "after": 0.0,
          "delta": -0.4732,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4732,
          "after": 0.0,
          "delta": -0.4732,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2469,
          "after": 0.25,
          "delta": 0.0031,
          "percent_delta": 0.0126,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3198,
          "after": 0.25,
          "delta": -0.0698,
          "percent_delta": -0.2183,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4448,
          "after": 0.25,
          "delta": -0.1948,
          "percent_delta": -0.4379,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4448,
          "after": 0.25,
          "delta": -0.1948,
          "percent_delta": -0.4379,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 2.0,
        "predicted_R": 1.0,
        "predicted_RBI": 2.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 4,
        "deboosted_metrics": 1,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2469,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_FB": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 2.0,
        "predicted_OBP": 0.3198,
        "predicted_R": 1.0,
        "predicted_RBI": 2.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4448,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2469,
          "delta": -0.0031,
          "percent_delta": -0.0122,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3198,
          "delta": 0.0698,
          "percent_delta": 0.2793,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4448,
          "delta": 0.1948,
          "percent_delta": 0.7792,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4448,
          "delta": 0.1948,
          "percent_delta": 0.7792,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.122,
        "after": 0.0,
        "delta": -0.122,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.64,
        "after": 4.0,
        "delta": 0.36,
        "percent_delta": 0.0989,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.242,
        "after": 0.2469,
        "delta": 0.0049,
        "percent_delta": 0.0202,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.39,
        "after": 0.0,
        "delta": -0.39,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.88,
        "after": 2.0,
        "delta": 1.12,
        "percent_delta": 1.2727,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.18,
        "after": 2.0,
        "delta": 1.82,
        "percent_delta": 10.1111,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.321,
        "after": 0.3198,
        "delta": -0.0012,
        "percent_delta": -0.0037,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.415,
        "after": 1.0,
        "delta": 0.585,
        "percent_delta": 1.4096,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.59,
        "after": 2.0,
        "delta": 1.41,
        "percent_delta": 2.3898,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.442,
        "after": 0.4448,
        "delta": 0.0028,
        "percent_delta": 0.0063,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.073,
        "after": 0.0,
        "delta": -1.073,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 8,
      "boosted_metrics": 5,
      "deboosted_metrics": 3,
      "better_metrics": 6,
      "worse_metrics": 2,
      "biggest_boost": {
        "metric": "predicted_HR",
        "before": 0.18,
        "after": 2.0,
        "delta": 1.82,
        "percent_delta": 10.1111,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 1.073,
        "after": 0.0,
        "delta": -1.073,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.122-
predicted_3B0.000-
predicted_AB3.640-
predicted_AVG0.242-
predicted_BB0.390-
predicted_H0.880-
predicted_HR0.180-
predicted_OBP0.321-
predicted_R0.415-
predicted_RBI0.590-
predicted_SLG0.442-
predicted_SO1.073-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1370.015
predicted_3B0.0010.001
predicted_AB3.615-0.026
predicted_AVG0.2470.005
predicted_BB0.386-0.004
predicted_H0.8920.012
predicted_HBP0.031-
predicted_HR0.1930.013
predicted_OBP0.3230.002
predicted_R0.4720.057
predicted_RBI0.6130.023
predicted_SLG0.4560.014
predicted_SO1.018-0.055
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1370.000
predicted_3B0.0010.000
predicted_AB3.6150.000
predicted_AVG0.2470.000
predicted_BB0.3870.001
predicted_H0.8930.001
predicted_HBP0.0310.000
predicted_HR0.192-0.001
predicted_OBP0.320-0.003
predicted_R0.4730.001
predicted_RBI0.6140.001
predicted_SLG0.445-0.012
predicted_SO1.016-0.002
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.64), rates preserved: AVG=0.245 HR/AB=0.053

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.137
predicted_3B0.000-0.001
predicted_AB4.0000.385
predicted_AVG0.2500.003
predicted_BB0.000-0.387
predicted_H1.0000.107
predicted_HR0.000-0.192
predicted_OBP0.250-0.070
predicted_R0.000-0.473
predicted_RBI1.0000.386
predicted_SLG0.250-0.195
predicted_SO1.000-0.016
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR2.0002.000
PA4.000-
R1.0001.000
RBI2.0001.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 41
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0006.0001.0000.0002.0006.0005.0002.0004.0000.33330.38100.72220.33330.11110.33330.11110.2222
last_100.2010-37.00012.0002.0000.0003.0007.0006.0004.0007.0000.32430.38100.62160.32430.08110.18920.10810.1892
season0.6041-141.00029.0005.0000.0006.00020.00017.00016.00044.0000.20570.29190.36880.20570.04250.14180.11350.3121
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1580
predicted_3B0.0020
predicted_AB3.5770
predicted_AVG0.2542
predicted_BB0.3810
predicted_H0.9090
predicted_HBP0.0310
predicted_HR0.2120
predicted_OBP0.3253
predicted_R0.5560
predicted_RBI0.6460
predicted_SLG0.4774
predicted_SO0.9370
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.12200.15800.1365model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB3.64003.57703.6145model_form_blend
predicted_AVG0.24200.25420.2469model_form_blend
predicted_BB0.39000.38100.3864model_form_blend
predicted_H0.88000.90900.8917model_form_blend
predicted_HBP-0.03100.0310form_only
predicted_HR0.18000.21200.1929model_form_blend
predicted_OBP0.32100.32530.3227model_form_blend
predicted_R0.41500.55600.4720model_form_blend
predicted_RBI0.59000.64600.6126model_form_blend
predicted_SLG0.44200.47740.4563model_form_blend
predicted_SO1.07300.93701.0180model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date129
Season rows before report date129
Report year2026
Profile rows used41
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H2
2B0
3B0
HR2
R1
RBI2
BB0
SO0
SF0
HBP0
season_avg0.206

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.2
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI2
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB1
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B
gameID20260616_MIN@TEX
game_typefull
mlbID668904
playerID668904
playerNameRoyce Lewis
pos3B
startedTrue
startingPosition1B
teamMIN
teamID17
game_date2026-06-16
sl_k_percent27.3
sl_bb_percent9.9
sl_woba0.295
sl_xwoba0.3
sl_xba0.214
sl_xslg0.365
sl_sweet_spot_percent33.3
sl_barrel_batted_rate12.1
sl_hard_hit_percent41.4
sl_exit_velocity_avg88.6
sl_launch_angle_avg16.6
sl_whiff_percent35.0
sl_swing_percent47.7
Kody Clemens (665019) · BATTER · RF · Team MIN
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 185
All-history rows before 20260618: 185
System season_avg: 0.2510
Data season_avg (2026 season-to-date): 0.2351
Diff (system - data): 0.0159
System opponent_avg: 0.2500
System season_avg diverges from 2026 season-to-date by 0.0159. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2460.0000.000Hitting_2B0.2381.000-0.238-1.000
predicted_3B0.0330.0000.000Hitting_3B0.0320.000-0.0320.000
predicted_AB3.5254.0004.000Hitting_AB3.6324.0000.3680.000
predicted_AVG0.2400.0000.250Hitting_AVG0.2350.500-0.235-0.500
predicted_BB0.2620.0000.000Hitting_BB0.3301.000-0.330-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0430.000-0.0430.000
predicted_H0.3600.0001.000Hitting_H0.8542.000-0.854-2.000
predicted_HR0.0800.0000.000Hitting_HR0.1461.000-0.146-1.000
predicted_OBP0.3020.0000.250Hitting_OBP0.3170.600-0.317-0.600
predicted_R0.5080.0001.000Hitting_R0.4862.000-0.486-2.000
predicted_RBI0.2700.0000.000Hitting_RBI0.4323.000-0.432-3.000
predicted_SLG0.4780.0000.250Hitting_SLG0.4391.500-0.439-1.500
predicted_SO0.8361.0001.000Hitting_SO0.9030.0000.0971.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics2
Deboosted Metrics9
Better Metrics1
Worse Metrics10
Biggest Boostpredicted_AB: 3.5250 -> 4.0000 (boost 0.4750, better)
Biggest Deboostpredicted_R: 0.5080 -> 0.0000 (deboost -0.5080, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend76170predicted_H: 0.3600 -> 0.6210 (boost 0.2610, better)predicted_SO: 0.8360 -> 0.7818 (deboost -0.0542, better)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.5040 -> 0.3784 (deboost -0.1256, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73425predicted_AB: 3.5742 -> 4.0000 (boost 0.4258, better)predicted_RBI: 0.4437 -> 0.0000 (deboost -0.4437, worse)AB rounded to 4 (raw=3.57), rates preserved: AVG=0.174 HR/AB=0.040
5consistency_constraints11010predicted_R: 0.5440 -> 1.0000 (boost 0.4560, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.1739 -> 0.2500 (boost 0.0761, better)predicted_SLG: 0.3784 -> 0.2500 (deboost -0.1284, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference20202-predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.2500 -> 0.3784 (boost 0.1284, better)predicted_AVG: 0.2500 -> 0.1739 (deboost -0.0761, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "665019",
  "player_name": "Kody Clemens",
  "position": "RF",
  "team": "MIN",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.246,
        "predicted_3B": 0.033,
        "predicted_AB": 3.525,
        "predicted_AVG": 0.24,
        "predicted_BB": 0.262,
        "predicted_H": 0.36,
        "predicted_HR": 0.08,
        "predicted_OBP": 0.302,
        "predicted_R": 0.508,
        "predicted_RBI": 0.27,
        "predicted_SLG": 0.478,
        "predicted_SO": 0.836
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2443,
        "predicted_3B": 0.0276,
        "predicted_AB": 3.5742,
        "predicted_AVG": 0.2528,
        "predicted_BB": 0.2691,
        "predicted_H": 0.621,
        "predicted_HBP": 0.049,
        "predicted_HR": 0.1442,
        "predicted_OBP": 0.3142,
        "predicted_R": 0.5426,
        "predicted_RBI": 0.4426,
        "predicted_SLG": 0.504,
        "predicted_SO": 0.7818
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.246,
          "after": 0.2443,
          "delta": -0.0017,
          "percent_delta": -0.0069,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.033,
          "after": 0.0276,
          "delta": -0.0054,
          "percent_delta": -0.1636,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.525,
          "after": 3.5742,
          "delta": 0.0492,
          "percent_delta": 0.014,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.24,
          "after": 0.2528,
          "delta": 0.0128,
          "percent_delta": 0.0533,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.262,
          "after": 0.2691,
          "delta": 0.0071,
          "percent_delta": 0.0271,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.36,
          "after": 0.621,
          "delta": 0.261,
          "percent_delta": 0.725,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.08,
          "after": 0.1442,
          "delta": 0.0642,
          "percent_delta": 0.8025,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_OBP",
          "before": 0.302,
          "after": 0.3142,
          "delta": 0.0122,
          "percent_delta": 0.0404,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.508,
          "after": 0.5426,
          "delta": 0.0346,
          "percent_delta": 0.0681,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.27,
          "after": 0.4426,
          "delta": 0.1726,
          "percent_delta": 0.6393,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.478,
          "after": 0.504,
          "delta": 0.026,
          "percent_delta": 0.0544,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.836,
          "after": 0.7818,
          "delta": -0.0542,
          "percent_delta": -0.0648,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 6,
        "deboosted_metrics": 1,
        "better_metrics": 7,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.36,
          "after": 0.621,
          "delta": 0.261,
          "percent_delta": 0.725,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 0.836,
          "after": 0.7818,
          "delta": -0.0542,
          "percent_delta": -0.0648,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 61
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2443,
        "predicted_3B": 0.0276,
        "predicted_AB": 3.5742,
        "predicted_AVG": 0.1739,
        "predicted_BB": 0.2697,
        "predicted_H": 0.6216,
        "predicted_HBP": 0.049,
        "predicted_HR": 0.1438,
        "predicted_OBP": 0.2319,
        "predicted_R": 0.544,
        "predicted_RBI": 0.4437,
        "predicted_SLG": 0.3784,
        "predicted_SO": 0.7799
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2443,
          "after": 0.2443,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0276,
          "after": 0.0276,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.5742,
          "after": 3.5742,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2528,
          "after": 0.1739,
          "delta": -0.0789,
          "percent_delta": -0.3121,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2691,
          "after": 0.2697,
          "delta": 0.0006,
          "percent_delta": 0.0022,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.621,
          "after": 0.6216,
          "delta": 0.0006,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.049,
          "after": 0.049,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1442,
          "after": 0.1438,
          "delta": -0.0004,
          "percent_delta": -0.0028,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3142,
          "after": 0.2319,
          "delta": -0.0823,
          "percent_delta": -0.2619,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5426,
          "after": 0.544,
          "delta": 0.0014,
          "percent_delta": 0.0026,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4426,
          "after": 0.4437,
          "delta": 0.0011,
          "percent_delta": 0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.504,
          "after": 0.3784,
          "delta": -0.1256,
          "percent_delta": -0.2492,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7818,
          "after": 0.7799,
          "delta": -0.0019,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.504,
          "after": 0.3784,
          "delta": -0.1256,
          "percent_delta": -0.2492,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.57), rates preserved: AVG=0.174 HR/AB=0.040",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2443,
          "after": 0.0,
          "delta": -0.2443,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0276,
          "after": 0.0,
          "delta": -0.0276,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.5742,
          "after": 4.0,
          "delta": 0.4258,
          "percent_delta": 0.1191,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2697,
          "after": 0.0,
          "delta": -0.2697,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6216,
          "after": 1.0,
          "delta": 0.3784,
          "percent_delta": 0.6088,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.049,
          "after": 0.0,
          "delta": -0.049,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1438,
          "after": 0.0,
          "delta": -0.1438,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4437,
          "after": 0.0,
          "delta": -0.4437,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7799,
          "after": 1.0,
          "delta": 0.2201,
          "percent_delta": 0.2822,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.5742,
          "after": 4.0,
          "delta": 0.4258,
          "percent_delta": 0.1191,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4437,
          "after": 0.0,
          "delta": -0.4437,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.544,
          "after": 1.0,
          "delta": 0.456,
          "percent_delta": 0.8382,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.544,
          "after": 1.0,
          "delta": 0.456,
          "percent_delta": 0.8382,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1739,
          "after": 0.25,
          "delta": 0.0761,
          "percent_delta": 0.4376,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2319,
          "after": 0.25,
          "delta": 0.0181,
          "percent_delta": 0.0781,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3784,
          "after": 0.25,
          "delta": -0.1284,
          "percent_delta": -0.3393,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1739,
          "after": 0.25,
          "delta": 0.0761,
          "percent_delta": 0.4376,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3784,
          "after": 0.25,
          "delta": -0.1284,
          "percent_delta": -0.3393,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.1739,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2319,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_RF": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3784,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.1739,
          "delta": -0.0761,
          "percent_delta": -0.3043,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2319,
          "delta": -0.0181,
          "percent_delta": -0.0724,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3784,
          "delta": 0.1284,
          "percent_delta": 0.5136,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3784,
          "delta": 0.1284,
          "percent_delta": 0.5136,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.1739,
          "delta": -0.0761,
          "percent_delta": -0.3043,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.246,
        "after": 0.0,
        "delta": -0.246,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.033,
        "after": 0.0,
        "delta": -0.033,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.525,
        "after": 4.0,
        "delta": 0.475,
        "percent_delta": 0.1348,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.24,
        "after": 0.1739,
        "delta": -0.0661,
        "percent_delta": -0.2754,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.262,
        "after": 0.0,
        "delta": -0.262,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.36,
        "after": 0.0,
        "delta": -0.36,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.08,
        "after": 0.0,
        "delta": -0.08,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.302,
        "after": 0.2319,
        "delta": -0.0701,
        "percent_delta": -0.2321,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.508,
        "after": 0.0,
        "delta": -0.508,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.27,
        "after": 0.0,
        "delta": -0.27,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.478,
        "after": 0.3784,
        "delta": -0.0996,
        "percent_delta": -0.2084,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.836,
        "after": 1.0,
        "delta": 0.164,
        "percent_delta": 0.1962,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 2,
      "deboosted_metrics": 9,
      "better_metrics": 1,
      "worse_metrics": 10,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.525,
        "after": 4.0,
        "delta": 0.475,
        "percent_delta": 0.1348,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_R",
        "before": 0.508,
        "after": 0.0,
        "delta": -0.508,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.246-
predicted_3B0.033-
predicted_AB3.525-
predicted_AVG0.240-
predicted_BB0.262-
predicted_H0.360-
predicted_HR0.080-
predicted_OBP0.302-
predicted_R0.508-
predicted_RBI0.270-
predicted_SLG0.478-
predicted_SO0.836-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.244-0.002
predicted_3B0.028-0.005
predicted_AB3.5740.049
predicted_AVG0.2530.013
predicted_BB0.2690.007
predicted_H0.6210.261
predicted_HBP0.049-
predicted_HR0.1440.064
predicted_OBP0.3140.012
predicted_R0.5430.035
predicted_RBI0.4430.173
predicted_SLG0.5040.026
predicted_SO0.782-0.054
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2440.000
predicted_3B0.0280.000
predicted_AB3.5740.000
predicted_AVG0.174-0.079
predicted_BB0.2700.001
predicted_H0.6220.001
predicted_HBP0.0490.000
predicted_HR0.144-0.000
predicted_OBP0.232-0.082
predicted_R0.5440.001
predicted_RBI0.4440.001
predicted_SLG0.378-0.126
predicted_SO0.780-0.002
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.57), rates preserved: AVG=0.174 HR/AB=0.040

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.244
predicted_3B0.000-0.028
predicted_AB4.0000.426
predicted_AVG0.2500.076
predicted_BB0.000-0.270
predicted_H1.0000.378
predicted_HR0.000-0.144
predicted_OBP0.2500.018
predicted_R1.0000.456
predicted_RBI0.000-0.444
predicted_SLG0.250-0.128
predicted_SO1.0000.220
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 61
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-19.0006.0001.0000.0002.0007.0004.0002.0002.0000.31580.38100.68420.31580.10530.36840.10530.1053
last_100.2010-37.00011.0003.0000.0003.0008.0007.0002.0005.0000.29730.33330.62160.29730.08110.21620.05410.1351
season0.6061-215.00054.00015.0002.00011.00028.00031.00016.00051.0000.25120.31780.49300.25120.05120.13020.07440.2372
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2420
predicted_3B0.0200
predicted_AB3.6430
predicted_AVG0.2708
predicted_BB0.2790
predicted_H0.9860
predicted_HBP0.0490
predicted_HR0.2340
predicted_OBP0.3313
predicted_R0.5910
predicted_RBI0.6840
predicted_SLG0.5404
predicted_SO0.7060
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.24600.24200.2443model_form_blend
predicted_3B0.03300.02000.0276model_form_blend
predicted_AB3.52503.64303.5742model_form_blend
predicted_AVG0.24000.27080.2528model_form_blend
predicted_BB0.26200.27900.2691model_form_blend
predicted_H0.36000.98600.6210model_form_blend
predicted_HBP-0.04900.0490form_only
predicted_HR0.08000.23400.1442model_form_blend
predicted_OBP0.30200.33130.3142model_form_blend
predicted_R0.50800.59100.5426model_form_blend
predicted_RBI0.27000.68400.4426model_form_blend
predicted_SLG0.47800.54040.5040model_form_blend
predicted_SO0.83600.70600.7818model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date185
Season rows before report date185
Report year2026
Profile rows used61
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.251

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB4
Hitting_AVG0.5
Hitting_BB1
Hitting_GIDP1
Hitting_H2
Hitting_HBP0
Hitting_HR1
Hitting_IBB1
Hitting_R2
Hitting_RBI3
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB6
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedRF
gameID20260616_MIN@TEX
game_typefull
mlbID665019
playerID665019
playerNameKody Clemens
pos1B
startedTrue
startingPositionRF
teamMIN
teamID17
game_date2026-06-16
sl_k_percent21.4
sl_bb_percent6.7
sl_woba0.35
sl_xwoba0.337
sl_xba0.256
sl_xslg0.456
sl_sweet_spot_percent34.3
sl_barrel_batted_rate13.3
sl_hard_hit_percent44.0
sl_exit_velocity_avg92.5
sl_launch_angle_avg16.5
sl_whiff_percent24.4
sl_swing_percent48.9
Josh Bell (605137) · BATTER · DH · Team MIN
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 234
All-history rows before 20260618: 234
System season_avg: 0.2400
Data season_avg (2026 season-to-date): 0.2274
Diff (system - data): 0.0126
System opponent_avg: 0.5000

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1940.0000.000Hitting_2B0.1791.000-0.179-1.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.8104.0004.000Hitting_AB3.7784.0000.2220.000
predicted_AVG0.2530.2500.250Hitting_AVG0.2270.5000.023-0.250
predicted_BB0.2640.0000.000Hitting_BB0.3161.000-0.316-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.9601.0001.000Hitting_H0.8592.0000.141-1.000
predicted_HR0.1600.0000.000Hitting_HR0.1030.000-0.1030.000
predicted_OBP0.3250.2500.250Hitting_OBP0.2890.600-0.039-0.350
predicted_R0.4860.0000.000Hitting_R0.5171.000-0.517-1.000
predicted_RBI0.7500.0001.000Hitting_RBI0.6032.000-0.603-2.000
predicted_SLG0.4470.2500.250Hitting_SLG0.3560.750-0.106-0.500
predicted_SO0.9311.0001.000Hitting_SO0.9700.0000.0301.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics3
Deboosted Metrics6
Better Metrics2
Worse Metrics7
Biggest Boostpredicted_AB: 3.8100 -> 4.0000 (boost 0.1900, better)
Biggest Deboostpredicted_RBI: 0.7500 -> 0.0000 (deboost -0.7500, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend32121predicted_SLG: 0.4470 -> 0.4633 (boost 0.0163, better)predicted_AB: 3.8100 -> 3.7408 (deboost -0.0692, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3274 -> 0.3120 (deboost -0.0154, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling63324predicted_AB: 3.7408 -> 4.0000 (boost 0.2592, better)predicted_BB: 0.2486 -> 0.0000 (deboost -0.2486, worse)AB rounded to 4 (raw=3.81), rates preserved: AVG=0.261 HR/AB=0.042
5consistency_constraints10101-predicted_R: 0.4986 -> 0.0000 (deboost -0.4986, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.4519 -> 0.2500 (deboost -0.2019, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference10101-predicted_RBI: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2500 -> 0.4519 (boost 0.2019, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "605137",
  "player_name": "Josh Bell",
  "position": "DH",
  "team": "MIN",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.194,
        "predicted_3B": 0.0,
        "predicted_AB": 3.81,
        "predicted_AVG": 0.253,
        "predicted_BB": 0.264,
        "predicted_H": 0.96,
        "predicted_HR": 0.16,
        "predicted_OBP": 0.325,
        "predicted_R": 0.486,
        "predicted_RBI": 0.75,
        "predicted_SLG": 0.447,
        "predicted_SO": 0.931
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2113,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.7408,
        "predicted_AVG": 0.267,
        "predicted_BB": 0.248,
        "predicted_H": 0.995,
        "predicted_HBP": 0.018,
        "predicted_HR": 0.1613,
        "predicted_OBP": 0.3274,
        "predicted_R": 0.4974,
        "predicted_RBI": 0.799,
        "predicted_SLG": 0.4633,
        "predicted_SO": 0.8989
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.194,
          "after": 0.2113,
          "delta": 0.0173,
          "percent_delta": 0.0892,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.81,
          "after": 3.7408,
          "delta": -0.0692,
          "percent_delta": -0.0182,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.253,
          "after": 0.267,
          "delta": 0.014,
          "percent_delta": 0.0553,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.264,
          "after": 0.248,
          "delta": -0.016,
          "percent_delta": -0.0606,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.96,
          "after": 0.995,
          "delta": 0.035,
          "percent_delta": 0.0365,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.16,
          "after": 0.1613,
          "delta": 0.0013,
          "percent_delta": 0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.325,
          "after": 0.3274,
          "delta": 0.0024,
          "percent_delta": 0.0074,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.486,
          "after": 0.4974,
          "delta": 0.0114,
          "percent_delta": 0.0235,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.75,
          "after": 0.799,
          "delta": 0.049,
          "percent_delta": 0.0653,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.447,
          "after": 0.4633,
          "delta": 0.0163,
          "percent_delta": 0.0365,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.931,
          "after": 0.8989,
          "delta": -0.0321,
          "percent_delta": -0.0345,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.447,
          "after": 0.4633,
          "delta": 0.0163,
          "percent_delta": 0.0365,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.81,
          "after": 3.7408,
          "delta": -0.0692,
          "percent_delta": -0.0182,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 72
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2113,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.7408,
        "predicted_AVG": 0.2663,
        "predicted_BB": 0.2486,
        "predicted_H": 0.996,
        "predicted_HBP": 0.018,
        "predicted_HR": 0.1608,
        "predicted_OBP": 0.312,
        "predicted_R": 0.4986,
        "predicted_RBI": 0.801,
        "predicted_SLG": 0.4519,
        "predicted_SO": 0.8967
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2113,
          "after": 0.2113,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.7408,
          "after": 3.7408,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.267,
          "after": 0.2663,
          "delta": -0.0007,
          "percent_delta": -0.0026,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.248,
          "after": 0.2486,
          "delta": 0.0006,
          "percent_delta": 0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.995,
          "after": 0.996,
          "delta": 0.001,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.018,
          "after": 0.018,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1613,
          "after": 0.1608,
          "delta": -0.0005,
          "percent_delta": -0.0031,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3274,
          "after": 0.312,
          "delta": -0.0154,
          "percent_delta": -0.047,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4974,
          "after": 0.4986,
          "delta": 0.0012,
          "percent_delta": 0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.799,
          "after": 0.801,
          "delta": 0.002,
          "percent_delta": 0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4633,
          "after": 0.4519,
          "delta": -0.0114,
          "percent_delta": -0.0246,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8989,
          "after": 0.8967,
          "delta": -0.0022,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3274,
          "after": 0.312,
          "delta": -0.0154,
          "percent_delta": -0.047,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.81), rates preserved: AVG=0.261 HR/AB=0.042",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2113,
          "after": 0.0,
          "delta": -0.2113,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.7408,
          "after": 4.0,
          "delta": 0.2592,
          "percent_delta": 0.0693,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2486,
          "after": 0.0,
          "delta": -0.2486,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.996,
          "after": 1.0,
          "delta": 0.004,
          "percent_delta": 0.004,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.018,
          "after": 0.0,
          "delta": -0.018,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1608,
          "after": 0.0,
          "delta": -0.1608,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.801,
          "after": 1.0,
          "delta": 0.199,
          "percent_delta": 0.2484,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8967,
          "after": 1.0,
          "delta": 0.1033,
          "percent_delta": 0.1152,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 3,
        "deboosted_metrics": 3,
        "better_metrics": 2,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.7408,
          "after": 4.0,
          "delta": 0.2592,
          "percent_delta": 0.0693,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.2486,
          "after": 0.0,
          "delta": -0.2486,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4986,
          "after": 0.0,
          "delta": -0.4986,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4986,
          "after": 0.0,
          "delta": -0.4986,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2663,
          "after": 0.25,
          "delta": -0.0163,
          "percent_delta": -0.0612,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.312,
          "after": 0.25,
          "delta": -0.062,
          "percent_delta": -0.1987,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4519,
          "after": 0.25,
          "delta": -0.2019,
          "percent_delta": -0.4468,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4519,
          "after": 0.25,
          "delta": -0.2019,
          "percent_delta": -0.4468,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2663,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.312,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4519,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2663,
          "delta": 0.0163,
          "percent_delta": 0.065,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.312,
          "delta": 0.062,
          "percent_delta": 0.2479,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4519,
          "delta": 0.2019,
          "percent_delta": 0.8078,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4519,
          "delta": 0.2019,
          "percent_delta": 0.8078,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.194,
        "after": 0.0,
        "delta": -0.194,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.81,
        "after": 4.0,
        "delta": 0.19,
        "percent_delta": 0.0499,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.253,
        "after": 0.2663,
        "delta": 0.0133,
        "percent_delta": 0.0526,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.264,
        "after": 0.0,
        "delta": -0.264,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.96,
        "after": 1.0,
        "delta": 0.04,
        "percent_delta": 0.0417,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.16,
        "after": 0.0,
        "delta": -0.16,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.325,
        "after": 0.312,
        "delta": -0.013,
        "percent_delta": -0.04,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.486,
        "after": 0.0,
        "delta": -0.486,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.75,
        "after": 0.0,
        "delta": -0.75,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.447,
        "after": 0.4519,
        "delta": 0.0049,
        "percent_delta": 0.011,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.931,
        "after": 1.0,
        "delta": 0.069,
        "percent_delta": 0.0741,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 3,
      "deboosted_metrics": 6,
      "better_metrics": 2,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.81,
        "after": 4.0,
        "delta": 0.19,
        "percent_delta": 0.0499,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.75,
        "after": 0.0,
        "delta": -0.75,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.194-
predicted_3B0.000-
predicted_AB3.810-
predicted_AVG0.253-
predicted_BB0.264-
predicted_H0.960-
predicted_HR0.160-
predicted_OBP0.325-
predicted_R0.486-
predicted_RBI0.750-
predicted_SLG0.447-
predicted_SO0.931-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2110.017
predicted_3B0.0000.000
predicted_AB3.741-0.069
predicted_AVG0.2670.014
predicted_BB0.248-0.016
predicted_H0.9950.035
predicted_HBP0.018-
predicted_HR0.1610.001
predicted_OBP0.3270.002
predicted_R0.4970.011
predicted_RBI0.7990.049
predicted_SLG0.4630.016
predicted_SO0.899-0.032
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2110.000
predicted_3B0.0000.000
predicted_AB3.7410.000
predicted_AVG0.266-0.001
predicted_BB0.2490.001
predicted_H0.9960.001
predicted_HBP0.0180.000
predicted_HR0.161-0.001
predicted_OBP0.312-0.015
predicted_R0.4990.001
predicted_RBI0.8010.002
predicted_SLG0.452-0.011
predicted_SO0.897-0.002
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.81), rates preserved: AVG=0.261 HR/AB=0.042

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.211
predicted_3B0.000-0.000
predicted_AB4.0000.259
predicted_AVG0.250-0.016
predicted_BB0.000-0.249
predicted_H1.0000.004
predicted_HR0.000-0.161
predicted_OBP0.250-0.062
predicted_R0.000-0.499
predicted_RBI1.0000.199
predicted_SLG0.250-0.202
predicted_SO1.0000.103
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 72
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0007.0002.0000.0001.0007.0003.0001.0003.0000.41180.44440.70590.41180.05880.41180.05880.1765
last_100.2010-38.00012.0002.0000.0003.00012.0005.0001.0009.0000.31580.33330.60530.31580.07900.31580.02630.2368
season0.6072-262.00063.00014.0000.0008.00045.00035.00019.00067.0000.24050.29470.38550.24050.03050.17180.07250.2557
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2350
predicted_3B0.0010
predicted_AB3.6460
predicted_AVG0.2861
predicted_BB0.2260
predicted_H1.0430
predicted_HBP0.0180
predicted_HR0.1630
predicted_OBP0.3306
predicted_R0.5130
predicted_RBI0.8660
predicted_SLG0.4856
predicted_SO0.8550
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.19400.23500.2113model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB3.81003.64603.7408model_form_blend
predicted_AVG0.25300.28610.2670model_form_blend
predicted_BB0.26400.22600.2480model_form_blend
predicted_H0.96001.04300.9950model_form_blend
predicted_HBP-0.01800.0180form_only
predicted_HR0.16000.16300.1613model_form_blend
predicted_OBP0.32500.33060.3274model_form_blend
predicted_R0.48600.51300.4974model_form_blend
predicted_RBI0.75000.86600.7990model_form_blend
predicted_SLG0.44700.48560.4633model_form_blend
predicted_SO0.93100.85500.8989model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date234
Season rows before report date234
Report year2026
Profile rows used72
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.24

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB4
Hitting_AVG0.5
Hitting_BB1
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI2
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB3
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260616_MIN@TEX
game_typefull
mlbID605137
playerID605137
playerNameJosh Bell
posDH
startedTrue
startingPositionDH
teamMIN
teamID17
game_date2026-06-16
sl_k_percent23.5
sl_bb_percent6.7
sl_woba0.3
sl_xwoba0.312
sl_xba0.245
sl_xslg0.417
sl_sweet_spot_percent34.5
sl_barrel_batted_rate10.2
sl_hard_hit_percent42.1
sl_exit_velocity_avg89.5
sl_launch_angle_avg12.7
sl_whiff_percent25.5
sl_swing_percent51.6
Brooks Lee (686797) · BATTER · 3B · Team MIN
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 227
All-history rows before 20260618: 227
System season_avg: 0.2390
Data season_avg (2026 season-to-date): 0.2462
Diff (system - data): -0.0072
System opponent_avg: 0.4000

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1470.0000.000Hitting_2B0.1851.000-0.185-1.000
predicted_3B0.0150.0000.000Hitting_3B0.0180.000-0.0180.000
predicted_AB3.7504.0004.000Hitting_AB3.7585.0000.242-1.000
predicted_AVG0.2310.2500.250Hitting_AVG0.2460.4000.004-0.150
predicted_BB0.2650.0000.000Hitting_BB0.2820.000-0.2820.000
predicted_CS-0.0000.000BaseRunning_CS0.0260.000-0.0260.000
predicted_H0.8501.0001.000Hitting_H0.9252.0000.075-1.000
predicted_HR0.1500.0000.000Hitting_HR0.1280.000-0.1280.000
predicted_OBP0.2900.2500.250Hitting_OBP0.3050.400-0.055-0.150
predicted_R0.4560.0000.000Hitting_R0.4890.000-0.4890.000
predicted_RBI0.4400.0000.000Hitting_RBI0.5730.000-0.5730.000
predicted_SLG0.3990.2500.250Hitting_SLG0.4070.600-0.157-0.350
predicted_SO0.6621.0001.000Hitting_SO0.6870.0000.3131.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics4
Deboosted Metrics6
Better Metrics3
Worse Metrics7
Biggest Boostpredicted_SO: 0.6620 -> 1.0000 (boost 0.3380, worse)
Biggest Deboostpredicted_R: 0.4560 -> 0.0000 (deboost -0.4560, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend21120predicted_SLG: 0.3990 -> 0.4072 (boost 0.0082, better)predicted_SO: 0.6620 -> 0.5878 (deboost -0.0742, better)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_OBP: 0.2865 -> 0.2784 (deboost -0.0081, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73425predicted_SO: 0.5864 -> 1.0000 (boost 0.4136, worse)predicted_RBI: 0.4512 -> 0.0000 (deboost -0.4512, worse)AB rounded to 4 (raw=3.79), rates preserved: AVG=0.227 HR/AB=0.044
5consistency_constraints10101-predicted_R: 0.4584 -> 0.0000 (deboost -0.4584, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2267 -> 0.2500 (boost 0.0233, better)predicted_SLG: 0.4044 -> 0.2500 (deboost -0.1544, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference00000--Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.2500 -> 0.4044 (boost 0.1544, better)predicted_AVG: 0.2500 -> 0.2267 (deboost -0.0233, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "686797",
  "player_name": "Brooks Lee",
  "position": "3B",
  "team": "MIN",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.147,
        "predicted_3B": 0.015,
        "predicted_AB": 3.75,
        "predicted_AVG": 0.231,
        "predicted_BB": 0.265,
        "predicted_H": 0.85,
        "predicted_HR": 0.15,
        "predicted_OBP": 0.29,
        "predicted_R": 0.456,
        "predicted_RBI": 0.44,
        "predicted_SLG": 0.399,
        "predicted_SO": 0.662
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1491,
        "predicted_3B": 0.0129,
        "predicted_AB": 3.7926,
        "predicted_AVG": 0.229,
        "predicted_BB": 0.2713,
        "predicted_H": 0.8588,
        "predicted_HBP": 0.02,
        "predicted_HR": 0.1669,
        "predicted_OBP": 0.2865,
        "predicted_R": 0.4573,
        "predicted_RBI": 0.4501,
        "predicted_SLG": 0.4072,
        "predicted_SO": 0.5878
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.147,
          "after": 0.1491,
          "delta": 0.0021,
          "percent_delta": 0.0143,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.015,
          "after": 0.0129,
          "delta": -0.0021,
          "percent_delta": -0.14,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.75,
          "after": 3.7926,
          "delta": 0.0426,
          "percent_delta": 0.0114,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.231,
          "after": 0.229,
          "delta": -0.002,
          "percent_delta": -0.0087,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.265,
          "after": 0.2713,
          "delta": 0.0063,
          "percent_delta": 0.0238,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.85,
          "after": 0.8588,
          "delta": 0.0088,
          "percent_delta": 0.0104,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.15,
          "after": 0.1669,
          "delta": 0.0169,
          "percent_delta": 0.1127,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.29,
          "after": 0.2865,
          "delta": -0.0035,
          "percent_delta": -0.0121,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.456,
          "after": 0.4573,
          "delta": 0.0013,
          "percent_delta": 0.0029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.44,
          "after": 0.4501,
          "delta": 0.0101,
          "percent_delta": 0.023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.399,
          "after": 0.4072,
          "delta": 0.0082,
          "percent_delta": 0.0206,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.662,
          "after": 0.5878,
          "delta": -0.0742,
          "percent_delta": -0.1121,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.399,
          "after": 0.4072,
          "delta": 0.0082,
          "percent_delta": 0.0206,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 0.662,
          "after": 0.5878,
          "delta": -0.0742,
          "percent_delta": -0.1121,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 68
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1491,
        "predicted_3B": 0.0129,
        "predicted_AB": 3.7926,
        "predicted_AVG": 0.2267,
        "predicted_BB": 0.272,
        "predicted_H": 0.8597,
        "predicted_HBP": 0.02,
        "predicted_HR": 0.1664,
        "predicted_OBP": 0.2784,
        "predicted_R": 0.4584,
        "predicted_RBI": 0.4512,
        "predicted_SLG": 0.4044,
        "predicted_SO": 0.5864
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1491,
          "after": 0.1491,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0129,
          "after": 0.0129,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.7926,
          "after": 3.7926,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.229,
          "after": 0.2267,
          "delta": -0.0023,
          "percent_delta": -0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2713,
          "after": 0.272,
          "delta": 0.0007,
          "percent_delta": 0.0026,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8588,
          "after": 0.8597,
          "delta": 0.0009,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.02,
          "after": 0.02,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1669,
          "after": 0.1664,
          "delta": -0.0005,
          "percent_delta": -0.003,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2865,
          "after": 0.2784,
          "delta": -0.0081,
          "percent_delta": -0.0283,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4573,
          "after": 0.4584,
          "delta": 0.0011,
          "percent_delta": 0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4501,
          "after": 0.4512,
          "delta": 0.0011,
          "percent_delta": 0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4072,
          "after": 0.4044,
          "delta": -0.0028,
          "percent_delta": -0.0069,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.5878,
          "after": 0.5864,
          "delta": -0.0014,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.2865,
          "after": 0.2784,
          "delta": -0.0081,
          "percent_delta": -0.0283,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.79), rates preserved: AVG=0.227 HR/AB=0.044",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1491,
          "after": 0.0,
          "delta": -0.1491,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0129,
          "after": 0.0,
          "delta": -0.0129,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.7926,
          "after": 4.0,
          "delta": 0.2074,
          "percent_delta": 0.0547,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.272,
          "after": 0.0,
          "delta": -0.272,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8597,
          "after": 1.0,
          "delta": 0.1403,
          "percent_delta": 0.1632,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.02,
          "after": 0.0,
          "delta": -0.02,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1664,
          "after": 0.0,
          "delta": -0.1664,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4512,
          "after": 0.0,
          "delta": -0.4512,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5864,
          "after": 1.0,
          "delta": 0.4136,
          "percent_delta": 0.7053,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.5864,
          "after": 1.0,
          "delta": 0.4136,
          "percent_delta": 0.7053,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4512,
          "after": 0.0,
          "delta": -0.4512,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4584,
          "after": 0.0,
          "delta": -0.4584,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4584,
          "after": 0.0,
          "delta": -0.4584,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2267,
          "after": 0.25,
          "delta": 0.0233,
          "percent_delta": 0.1028,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2784,
          "after": 0.25,
          "delta": -0.0284,
          "percent_delta": -0.102,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4044,
          "after": 0.25,
          "delta": -0.1544,
          "percent_delta": -0.3818,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2267,
          "after": 0.25,
          "delta": 0.0233,
          "percent_delta": 0.1028,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4044,
          "after": 0.25,
          "delta": -0.1544,
          "percent_delta": -0.3818,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2267,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2784,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4044,
        "predicted_SO": 1.0,
        "predicted_TB": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2267,
          "delta": -0.0233,
          "percent_delta": -0.0933,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2784,
          "delta": 0.0284,
          "percent_delta": 0.1136,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4044,
          "delta": 0.1544,
          "percent_delta": 0.6177,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4044,
          "delta": 0.1544,
          "percent_delta": 0.6177,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2267,
          "delta": -0.0233,
          "percent_delta": -0.0933,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.147,
        "after": 0.0,
        "delta": -0.147,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.015,
        "after": 0.0,
        "delta": -0.015,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.75,
        "after": 4.0,
        "delta": 0.25,
        "percent_delta": 0.0667,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.231,
        "after": 0.2267,
        "delta": -0.0043,
        "percent_delta": -0.0186,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.265,
        "after": 0.0,
        "delta": -0.265,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.85,
        "after": 1.0,
        "delta": 0.15,
        "percent_delta": 0.1765,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.15,
        "after": 0.0,
        "delta": -0.15,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.29,
        "after": 0.2784,
        "delta": -0.0116,
        "percent_delta": -0.04,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.456,
        "after": 0.0,
        "delta": -0.456,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.44,
        "after": 0.0,
        "delta": -0.44,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.399,
        "after": 0.4044,
        "delta": 0.0054,
        "percent_delta": 0.0135,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.662,
        "after": 1.0,
        "delta": 0.338,
        "percent_delta": 0.5106,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 4,
      "deboosted_metrics": 6,
      "better_metrics": 3,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.662,
        "after": 1.0,
        "delta": 0.338,
        "percent_delta": 0.5106,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_R",
        "before": 0.456,
        "after": 0.0,
        "delta": -0.456,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.147-
predicted_3B0.015-
predicted_AB3.750-
predicted_AVG0.231-
predicted_BB0.265-
predicted_H0.850-
predicted_HR0.150-
predicted_OBP0.290-
predicted_R0.456-
predicted_RBI0.440-
predicted_SLG0.399-
predicted_SO0.662-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1490.002
predicted_3B0.013-0.002
predicted_AB3.7930.043
predicted_AVG0.229-0.002
predicted_BB0.2710.006
predicted_H0.8590.009
predicted_HBP0.020-
predicted_HR0.1670.017
predicted_OBP0.286-0.004
predicted_R0.4570.001
predicted_RBI0.4500.010
predicted_SLG0.4070.008
predicted_SO0.588-0.074
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1490.000
predicted_3B0.0130.000
predicted_AB3.7930.000
predicted_AVG0.227-0.002
predicted_BB0.2720.001
predicted_H0.8600.001
predicted_HBP0.0200.000
predicted_HR0.166-0.001
predicted_OBP0.278-0.008
predicted_R0.4580.001
predicted_RBI0.4510.001
predicted_SLG0.404-0.003
predicted_SO0.586-0.001
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.79), rates preserved: AVG=0.227 HR/AB=0.044

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.149
predicted_3B0.000-0.013
predicted_AB4.0000.207
predicted_AVG0.2500.023
predicted_BB0.000-0.272
predicted_H1.0000.140
predicted_HR0.000-0.166
predicted_OBP0.250-0.028
predicted_R0.000-0.458
predicted_RBI0.000-0.451
predicted_SLG0.250-0.154
predicted_SO1.0000.414
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 68
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.0004.0001.0000.0001.0001.0002.0001.0000.0000.20000.23810.40000.20000.05000.05000.05000.0000
last_100.2010-40.0008.0001.0000.0003.0004.0005.0004.0002.0000.20000.27270.45000.20000.07500.10000.10000.0500
season0.6068-255.00061.00010.0001.00011.00038.00031.00018.00045.0000.23920.29350.41570.23920.04310.14900.07060.1765
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1520
predicted_3B0.0100
predicted_AB3.8510
predicted_AVG0.2262
predicted_BB0.2800
predicted_H0.8710
predicted_HBP0.0200
predicted_HR0.1900
predicted_OBP0.2817
predicted_R0.4590
predicted_RBI0.4640
predicted_SLG0.4185
predicted_SO0.4860
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.14700.15200.1491model_form_blend
predicted_3B0.01500.01000.0129model_form_blend
predicted_AB3.75003.85103.7926model_form_blend
predicted_AVG0.23100.22620.2290model_form_blend
predicted_BB0.26500.28000.2713model_form_blend
predicted_H0.85000.87100.8588model_form_blend
predicted_HBP-0.02000.0200form_only
predicted_HR0.15000.19000.1669model_form_blend
predicted_OBP0.29000.28170.2865model_form_blend
predicted_R0.45600.45900.4573model_form_blend
predicted_RBI0.44000.46400.4501model_form_blend
predicted_SLG0.39900.41850.4072model_form_blend
predicted_SO0.66200.48600.5878model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date227
Season rows before report date227
Report year2026
Profile rows used68
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.239

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB5
Hitting_AVG0.4
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB3
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260616_MIN@TEX
game_typefull
mlbID686797
playerID686797
playerNameBrooks Lee
posSS
startedTrue
startingPosition3B
teamMIN
teamID17
game_date2026-06-16
sl_k_percent16.2
sl_bb_percent6.8
sl_woba0.312
sl_xwoba0.277
sl_xba0.226
sl_xslg0.341
sl_sweet_spot_percent33.0
sl_barrel_batted_rate4.7
sl_hard_hit_percent31.1
sl_exit_velocity_avg87.8
sl_launch_angle_avg13.5
sl_whiff_percent21.1
sl_swing_percent52.0
Victor Caratini (605170) · BATTER · C · Team MIN
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 162
All-history rows before 20260618: 162
System season_avg: 0.2150
Data season_avg (2026 season-to-date): 0.1922
Diff (system - data): 0.0228
System opponent_avg: 0.2080
System season_avg diverges from 2026 season-to-date by 0.0228. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0960.0000.000Hitting_2B0.0490.000-0.0490.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.1354.0003.000Hitting_AB3.3093.0000.6911.000
predicted_AVG0.2480.2500.333Hitting_AVG0.1920.3330.058-0.083
predicted_BB0.3270.0000.000Hitting_BB0.3521.000-0.352-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.7501.0001.000Hitting_H0.6361.0000.3640.000
predicted_HR0.1200.0000.000Hitting_HR0.0431.000-0.043-1.000
predicted_OBP0.3200.2500.333Hitting_OBP0.2900.500-0.040-0.250
predicted_R0.2120.0000.000Hitting_R0.1911.000-0.191-1.000
predicted_RBI0.4700.0000.000Hitting_RBI0.4882.000-0.488-2.000
predicted_SLG0.4030.2500.333Hitting_SLG0.2461.3330.004-1.083
predicted_SO0.7311.0001.000Hitting_SO0.7720.0000.2281.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics2
Worse Metrics9
Biggest Boostpredicted_AB: 3.1350 -> 4.0000 (boost 0.8650, better)
Biggest Deboostpredicted_RBI: 0.4700 -> 0.0000 (deboost -0.4700, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend00000--Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3217 -> 0.3110 (deboost -0.0107, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling82617predicted_SO: 0.6940 -> 1.0000 (boost 0.3060, worse)predicted_RBI: 0.4811 -> 0.0000 (deboost -0.4811, worse)AB rounded to 3 (raw=3.16), rates preserved: AVG=0.239 HR/AB=0.039
5bvp_blend00000--Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.200)
6consistency_constraints10101-predicted_R: 0.2319 -> 0.0000 (deboost -0.2319, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context32121predicted_AVG: 0.2388 -> 0.3330 (boost 0.0942, better)predicted_SLG: 0.3959 -> 0.3330 (deboost -0.0629, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference11010predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
9current_json_final31212predicted_SLG: 0.3330 -> 0.3959 (boost 0.0629, better)predicted_AVG: 0.3330 -> 0.2388 (deboost -0.0942, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "605170",
  "player_name": "Victor Caratini",
  "position": "C",
  "team": "MIN",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.096,
        "predicted_3B": 0.0,
        "predicted_AB": 3.135,
        "predicted_AVG": 0.248,
        "predicted_BB": 0.327,
        "predicted_H": 0.75,
        "predicted_HR": 0.12,
        "predicted_OBP": 0.32,
        "predicted_R": 0.212,
        "predicted_RBI": 0.47,
        "predicted_SLG": 0.403,
        "predicted_SO": 0.731
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1239,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.1556,
        "predicted_AVG": 0.2437,
        "predicted_BB": 0.3299,
        "predicted_H": 0.7529,
        "predicted_HBP": 0.104,
        "predicted_HR": 0.1237,
        "predicted_OBP": 0.3217,
        "predicted_R": 0.2313,
        "predicted_RBI": 0.4799,
        "predicted_SLG": 0.4064,
        "predicted_SO": 0.6957
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.096,
          "after": 0.1239,
          "delta": 0.0279,
          "percent_delta": 0.2906,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.135,
          "after": 3.1556,
          "delta": 0.0206,
          "percent_delta": 0.0066,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.248,
          "after": 0.2437,
          "delta": -0.0043,
          "percent_delta": -0.0173,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.327,
          "after": 0.3299,
          "delta": 0.0029,
          "percent_delta": 0.0089,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.75,
          "after": 0.7529,
          "delta": 0.0029,
          "percent_delta": 0.0039,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.12,
          "after": 0.1237,
          "delta": 0.0037,
          "percent_delta": 0.0308,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.32,
          "after": 0.3217,
          "delta": 0.0017,
          "percent_delta": 0.0053,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.212,
          "after": 0.2313,
          "delta": 0.0193,
          "percent_delta": 0.091,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.47,
          "after": 0.4799,
          "delta": 0.0099,
          "percent_delta": 0.0211,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.403,
          "after": 0.4064,
          "delta": 0.0034,
          "percent_delta": 0.0084,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.731,
          "after": 0.6957,
          "delta": -0.0353,
          "percent_delta": -0.0483,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 52
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1239,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.1556,
        "predicted_AVG": 0.2388,
        "predicted_BB": 0.3307,
        "predicted_H": 0.7537,
        "predicted_HBP": 0.104,
        "predicted_HR": 0.1234,
        "predicted_OBP": 0.311,
        "predicted_R": 0.2319,
        "predicted_RBI": 0.4811,
        "predicted_SLG": 0.3959,
        "predicted_SO": 0.694
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1239,
          "after": 0.1239,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.1556,
          "after": 3.1556,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2437,
          "after": 0.2388,
          "delta": -0.0049,
          "percent_delta": -0.0201,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3299,
          "after": 0.3307,
          "delta": 0.0008,
          "percent_delta": 0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7529,
          "after": 0.7537,
          "delta": 0.0008,
          "percent_delta": 0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.104,
          "after": 0.104,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1237,
          "after": 0.1234,
          "delta": -0.0003,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3217,
          "after": 0.311,
          "delta": -0.0107,
          "percent_delta": -0.0333,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.2313,
          "after": 0.2319,
          "delta": 0.0006,
          "percent_delta": 0.0026,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4799,
          "after": 0.4811,
          "delta": 0.0012,
          "percent_delta": 0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4064,
          "after": 0.3959,
          "delta": -0.0105,
          "percent_delta": -0.0258,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6957,
          "after": 0.694,
          "delta": -0.0017,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3217,
          "after": 0.311,
          "delta": -0.0107,
          "percent_delta": -0.0333,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.16), rates preserved: AVG=0.239 HR/AB=0.039",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1239,
          "after": 0.0,
          "delta": -0.1239,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.1556,
          "after": 3.0,
          "delta": -0.1556,
          "percent_delta": -0.0493,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3307,
          "after": 0.0,
          "delta": -0.3307,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7537,
          "after": 1.0,
          "delta": 0.2463,
          "percent_delta": 0.3268,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.104,
          "after": 0.0,
          "delta": -0.104,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1234,
          "after": 0.0,
          "delta": -0.1234,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4811,
          "after": 0.0,
          "delta": -0.4811,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.694,
          "after": 1.0,
          "delta": 0.306,
          "percent_delta": 0.4409,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 2,
        "deboosted_metrics": 6,
        "better_metrics": 1,
        "worse_metrics": 7,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.694,
          "after": 1.0,
          "delta": 0.306,
          "percent_delta": 0.4409,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4811,
          "after": 0.0,
          "delta": -0.4811,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.200)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9429,
        "bvp": 0.0571
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.2319,
          "after": 0.0,
          "delta": -0.2319,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.2319,
          "after": 0.0,
          "delta": -0.2319,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2388,
          "after": 0.333,
          "delta": 0.0942,
          "percent_delta": 0.3945,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.311,
          "after": 0.333,
          "delta": 0.022,
          "percent_delta": 0.0707,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3959,
          "after": 0.333,
          "delta": -0.0629,
          "percent_delta": -0.1589,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2388,
          "after": 0.333,
          "delta": 0.0942,
          "percent_delta": 0.3945,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3959,
          "after": 0.333,
          "delta": -0.0629,
          "percent_delta": -0.1589,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2388,
        "predicted_BB": 0.0,
        "predicted_C": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.311,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3959,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2388,
          "delta": -0.0942,
          "percent_delta": -0.2828,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.311,
          "delta": -0.022,
          "percent_delta": -0.066,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3959,
          "delta": 0.0629,
          "percent_delta": 0.1888,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3959,
          "delta": 0.0629,
          "percent_delta": 0.1888,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2388,
          "delta": -0.0942,
          "percent_delta": -0.2828,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.096,
        "after": 0.0,
        "delta": -0.096,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.135,
        "after": 4.0,
        "delta": 0.865,
        "percent_delta": 0.2759,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.248,
        "after": 0.2388,
        "delta": -0.0092,
        "percent_delta": -0.0371,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.327,
        "after": 0.0,
        "delta": -0.327,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.75,
        "after": 1.0,
        "delta": 0.25,
        "percent_delta": 0.3333,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.12,
        "after": 0.0,
        "delta": -0.12,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.32,
        "after": 0.311,
        "delta": -0.009,
        "percent_delta": -0.0281,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.212,
        "after": 0.0,
        "delta": -0.212,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.47,
        "after": 0.0,
        "delta": -0.47,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.403,
        "after": 0.3959,
        "delta": -0.0071,
        "percent_delta": -0.0176,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.731,
        "after": 1.0,
        "delta": 0.269,
        "percent_delta": 0.368,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 2,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.135,
        "after": 4.0,
        "delta": 0.865,
        "percent_delta": 0.2759,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.47,
        "after": 0.0,
        "delta": -0.47,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.096-
predicted_3B0.000-
predicted_AB3.135-
predicted_AVG0.248-
predicted_BB0.327-
predicted_H0.750-
predicted_HR0.120-
predicted_OBP0.320-
predicted_R0.212-
predicted_RBI0.470-
predicted_SLG0.403-
predicted_SO0.731-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1240.028
predicted_3B0.0010.001
predicted_AB3.1560.021
predicted_AVG0.244-0.004
predicted_BB0.3300.003
predicted_H0.7530.003
predicted_HBP0.104-
predicted_HR0.1240.004
predicted_OBP0.3220.002
predicted_R0.2310.019
predicted_RBI0.4800.010
predicted_SLG0.4060.003
predicted_SO0.696-0.035
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1240.000
predicted_3B0.0010.000
predicted_AB3.1560.000
predicted_AVG0.239-0.005
predicted_BB0.3310.001
predicted_H0.7540.001
predicted_HBP0.1040.000
predicted_HR0.123-0.000
predicted_OBP0.311-0.011
predicted_R0.2320.001
predicted_RBI0.4810.001
predicted_SLG0.396-0.011
predicted_SO0.694-0.002
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.16), rates preserved: AVG=0.239 HR/AB=0.039

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.200)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.124
predicted_3B0.000-0.001
predicted_AB3.000-0.156
predicted_AVG0.3330.094
predicted_BB0.000-0.331
predicted_H1.0000.246
predicted_HR0.000-0.123
predicted_OBP0.3330.022
predicted_R0.000-0.232
predicted_RBI0.000-0.481
predicted_SLG0.333-0.063
predicted_SO1.0000.306
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 52
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-15.0003.0001.0000.0001.0002.0001.0002.0002.0000.20000.29410.46670.20000.06670.13330.13330.1333
last_100.2010-30.00010.0003.0000.0002.0006.0003.0003.0005.0000.33330.41180.63330.33330.06670.20000.10000.1667
season0.6052-163.00035.0005.0000.0004.00025.00011.00017.00038.0000.21470.30770.31900.21470.02450.15340.10430.2331
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1640
predicted_3B0.0020
predicted_AB3.1850
predicted_AVG0.2375
predicted_BB0.3340
predicted_H0.7570
predicted_HBP0.1040
predicted_HR0.1290
predicted_OBP0.3241
predicted_R0.2590
predicted_RBI0.4940
predicted_SLG0.4112
predicted_SO0.6450
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.09600.16400.1239model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB3.13503.18503.1556model_form_blend
predicted_AVG0.24800.23750.2437model_form_blend
predicted_BB0.32700.33400.3299model_form_blend
predicted_H0.75000.75700.7529model_form_blend
predicted_HBP-0.10400.1040form_only
predicted_HR0.12000.12900.1237model_form_blend
predicted_OBP0.32000.32410.3217model_form_blend
predicted_R0.21200.25900.2313model_form_blend
predicted_RBI0.47000.49400.4799model_form_blend
predicted_SLG0.40300.41120.4064model_form_blend
predicted_SO0.73100.64500.6957model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date162
Season rows before report date162
Report year2026
Profile rows used52
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.215

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB1
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R1
Hitting_RBI2
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB4
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedC
gameID20260614_STL@MIN
game_typefull
mlbID605170
playerID605170
playerNameVictor Caratini
posC
startedTrue
startingPositionC
teamMIN
teamID17
game_date2026-06-14
sl_k_percent19.4
sl_bb_percent9.2
sl_woba0.287
sl_xwoba0.339
sl_xba0.251
sl_xslg0.397
sl_sweet_spot_percent40.2
sl_barrel_batted_rate6.8
sl_hard_hit_percent39.4
sl_exit_velocity_avg89.1
sl_launch_angle_avg11.6
sl_whiff_percent21.2
sl_swing_percent42.2
Tristan Gray (656484) · BATTER · SS · Team MIN
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 111
All-history rows before 20260618: 111
System season_avg: 0.2440
Data season_avg (2026 season-to-date): 0.2301
Diff (system - data): 0.0139
System opponent_avg: 0.0000

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0890.0000.000Hitting_2B0.0900.000-0.0900.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.8224.0003.000Hitting_AB3.1715.0000.829-1.000
predicted_AVG0.2490.2500.333Hitting_AVG0.2300.0000.0200.250
predicted_BB0.1780.0000.000Hitting_BB0.1800.000-0.1800.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.6401.0001.000Hitting_H0.7300.0000.2701.000
predicted_HR0.0801.0000.000Hitting_HR0.1260.0000.8741.000
predicted_OBP0.2810.2500.333Hitting_OBP0.2750.000-0.0250.250
predicted_R0.2891.0000.000Hitting_R0.3060.0000.6941.000
predicted_RBI0.4102.0000.000Hitting_RBI0.6400.0001.3602.000
predicted_SLG0.3421.0000.333Hitting_SLG0.3780.0000.6221.000
predicted_SO0.9330.0001.000Hitting_SO1.1172.000-1.117-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics11
Boosted Metrics5
Deboosted Metrics6
Better Metrics6
Worse Metrics5
Biggest Boostpredicted_RBI: 0.4100 -> 2.0000 (boost 1.5900, better)
Biggest Deboostpredicted_SO: 0.9330 -> 0.0000 (deboost -0.9330, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend30303-predicted_AVG: 0.2490 -> 0.2385 (deboost -0.0105, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_AVG: 0.2385 -> 0.2253 (deboost -0.0132, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73425predicted_H: 0.6458 -> 1.0000 (boost 0.3542, better)predicted_RBI: 0.4274 -> 0.0000 (deboost -0.4274, worse)AB rounded to 3 (raw=2.87), rates preserved: AVG=0.225 HR/AB=0.025
5consistency_constraints10101-predicted_R: 0.2605 -> 0.0000 (deboost -0.2605, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context22020predicted_AVG: 0.2253 -> 0.3330 (boost 0.1077, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference54150predicted_RBI: 0.0000 -> 2.0000 (boost 2.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final20202-predicted_AVG: 0.3330 -> 0.2253 (deboost -0.1077, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "656484",
  "player_name": "Tristan Gray",
  "position": "SS",
  "team": "MIN",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.089,
        "predicted_3B": 0.0,
        "predicted_AB": 2.822,
        "predicted_AVG": 0.249,
        "predicted_BB": 0.178,
        "predicted_H": 0.64,
        "predicted_HR": 0.08,
        "predicted_OBP": 0.281,
        "predicted_R": 0.289,
        "predicted_RBI": 0.41,
        "predicted_SLG": 0.342,
        "predicted_SO": 0.933
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0898,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.8666,
        "predicted_AVG": 0.2385,
        "predicted_BB": 0.1812,
        "predicted_H": 0.6452,
        "predicted_HBP": 0.016,
        "predicted_HR": 0.0732,
        "predicted_OBP": 0.276,
        "predicted_R": 0.2599,
        "predicted_RBI": 0.4263,
        "predicted_SLG": 0.3332,
        "predicted_SO": 0.9171
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.089,
          "after": 0.0898,
          "delta": 0.0008,
          "percent_delta": 0.009,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.822,
          "after": 2.8666,
          "delta": 0.0446,
          "percent_delta": 0.0158,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.249,
          "after": 0.2385,
          "delta": -0.0105,
          "percent_delta": -0.0422,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.178,
          "after": 0.1812,
          "delta": 0.0032,
          "percent_delta": 0.018,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.64,
          "after": 0.6452,
          "delta": 0.0052,
          "percent_delta": 0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.08,
          "after": 0.0732,
          "delta": -0.0068,
          "percent_delta": -0.085,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.281,
          "after": 0.276,
          "delta": -0.005,
          "percent_delta": -0.0178,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.289,
          "after": 0.2599,
          "delta": -0.0291,
          "percent_delta": -0.1007,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.41,
          "after": 0.4263,
          "delta": 0.0163,
          "percent_delta": 0.0398,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.342,
          "after": 0.3332,
          "delta": -0.0088,
          "percent_delta": -0.0257,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.933,
          "after": 0.9171,
          "delta": -0.0159,
          "percent_delta": -0.017,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.249,
          "after": 0.2385,
          "delta": -0.0105,
          "percent_delta": -0.0422,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 45
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0898,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.8666,
        "predicted_AVG": 0.2253,
        "predicted_BB": 0.1816,
        "predicted_H": 0.6458,
        "predicted_HBP": 0.016,
        "predicted_HR": 0.073,
        "predicted_OBP": 0.2715,
        "predicted_R": 0.2605,
        "predicted_RBI": 0.4274,
        "predicted_SLG": 0.3336,
        "predicted_SO": 0.9149
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0898,
          "after": 0.0898,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.8666,
          "after": 2.8666,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2385,
          "after": 0.2253,
          "delta": -0.0132,
          "percent_delta": -0.0553,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1812,
          "after": 0.1816,
          "delta": 0.0004,
          "percent_delta": 0.0022,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6452,
          "after": 0.6458,
          "delta": 0.0006,
          "percent_delta": 0.0009,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.016,
          "after": 0.016,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0732,
          "after": 0.073,
          "delta": -0.0002,
          "percent_delta": -0.0027,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.276,
          "after": 0.2715,
          "delta": -0.0045,
          "percent_delta": -0.0163,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.2599,
          "after": 0.2605,
          "delta": 0.0006,
          "percent_delta": 0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4263,
          "after": 0.4274,
          "delta": 0.0011,
          "percent_delta": 0.0026,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3332,
          "after": 0.3336,
          "delta": 0.0004,
          "percent_delta": 0.0012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.9171,
          "after": 0.9149,
          "delta": -0.0022,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2385,
          "after": 0.2253,
          "delta": -0.0132,
          "percent_delta": -0.0553,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.87), rates preserved: AVG=0.225 HR/AB=0.025",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0898,
          "after": 0.0,
          "delta": -0.0898,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.8666,
          "after": 3.0,
          "delta": 0.1334,
          "percent_delta": 0.0465,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1816,
          "after": 0.0,
          "delta": -0.1816,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6458,
          "after": 1.0,
          "delta": 0.3542,
          "percent_delta": 0.5485,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.016,
          "after": 0.0,
          "delta": -0.016,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.073,
          "after": 0.0,
          "delta": -0.073,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4274,
          "after": 0.0,
          "delta": -0.4274,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9149,
          "after": 1.0,
          "delta": 0.0851,
          "percent_delta": 0.093,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.6458,
          "after": 1.0,
          "delta": 0.3542,
          "percent_delta": 0.5485,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4274,
          "after": 0.0,
          "delta": -0.4274,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.2605,
          "after": 0.0,
          "delta": -0.2605,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.2605,
          "after": 0.0,
          "delta": -0.2605,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2253,
          "after": 0.333,
          "delta": 0.1077,
          "percent_delta": 0.478,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2715,
          "after": 0.333,
          "delta": 0.0615,
          "percent_delta": 0.2265,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3336,
          "after": 0.333,
          "delta": -0.0006,
          "percent_delta": -0.0018,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2253,
          "after": 0.333,
          "delta": 0.1077,
          "percent_delta": 0.478,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_R": 1.0,
        "predicted_RBI": 2.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 4,
        "deboosted_metrics": 1,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2253,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_OBP": 0.2715,
        "predicted_R": 1.0,
        "predicted_RBI": 2.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3336,
        "predicted_SO": 0.0,
        "predicted_SS": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2253,
          "delta": -0.1077,
          "percent_delta": -0.3234,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2715,
          "delta": -0.0615,
          "percent_delta": -0.1848,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3336,
          "delta": 0.0006,
          "percent_delta": 0.0017,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2253,
          "delta": -0.1077,
          "percent_delta": -0.3234,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.089,
        "after": 0.0,
        "delta": -0.089,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.822,
        "after": 4.0,
        "delta": 1.178,
        "percent_delta": 0.4174,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.249,
        "after": 0.2253,
        "delta": -0.0237,
        "percent_delta": -0.0952,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.178,
        "after": 0.0,
        "delta": -0.178,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.64,
        "after": 1.0,
        "delta": 0.36,
        "percent_delta": 0.5625,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.08,
        "after": 1.0,
        "delta": 0.92,
        "percent_delta": 11.5,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.281,
        "after": 0.2715,
        "delta": -0.0095,
        "percent_delta": -0.0338,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.289,
        "after": 1.0,
        "delta": 0.711,
        "percent_delta": 2.4602,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.41,
        "after": 2.0,
        "delta": 1.59,
        "percent_delta": 3.878,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.342,
        "after": 0.3336,
        "delta": -0.0084,
        "percent_delta": -0.0246,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.933,
        "after": 0.0,
        "delta": -0.933,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 5,
      "deboosted_metrics": 6,
      "better_metrics": 6,
      "worse_metrics": 5,
      "biggest_boost": {
        "metric": "predicted_RBI",
        "before": 0.41,
        "after": 2.0,
        "delta": 1.59,
        "percent_delta": 3.878,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.933,
        "after": 0.0,
        "delta": -0.933,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.089-
predicted_3B0.000-
predicted_AB2.822-
predicted_AVG0.249-
predicted_BB0.178-
predicted_H0.640-
predicted_HR0.080-
predicted_OBP0.281-
predicted_R0.289-
predicted_RBI0.410-
predicted_SLG0.342-
predicted_SO0.933-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.0900.001
predicted_3B0.0010.001
predicted_AB2.8670.045
predicted_AVG0.238-0.011
predicted_BB0.1810.003
predicted_H0.6450.005
predicted_HBP0.016-
predicted_HR0.073-0.007
predicted_OBP0.276-0.005
predicted_R0.260-0.029
predicted_RBI0.4260.016
predicted_SLG0.333-0.009
predicted_SO0.917-0.016
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0900.000
predicted_3B0.0010.000
predicted_AB2.8670.000
predicted_AVG0.225-0.013
predicted_BB0.1820.000
predicted_H0.6460.001
predicted_HBP0.0160.000
predicted_HR0.073-0.000
predicted_OBP0.272-0.005
predicted_R0.2610.001
predicted_RBI0.4270.001
predicted_SLG0.3340.000
predicted_SO0.915-0.002
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.87), rates preserved: AVG=0.225 HR/AB=0.025

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.090
predicted_3B0.000-0.001
predicted_AB3.0000.133
predicted_AVG0.3330.108
predicted_BB0.000-0.182
predicted_H1.0000.354
predicted_HR0.000-0.073
predicted_OBP0.3330.061
predicted_R0.000-0.261
predicted_RBI0.000-0.427
predicted_SLG0.333-0.001
predicted_SO1.0000.085
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR1.0001.000
PA4.000-
R1.0001.000
RBI2.0002.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 45
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-14.0002.0000.0000.0000.0001.0000.0001.0004.0000.14290.20000.14290.14290.00000.07140.07140.2857
last_100.2010-24.0005.0001.0000.0000.0002.0000.0001.0008.0000.20830.23080.25000.20830.00000.08330.04170.3333
season0.6045-127.00031.0004.0000.0004.00027.00013.0008.00042.0000.24410.28780.37010.24410.03150.21260.06300.3307
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0910
predicted_3B0.0020
predicted_AB2.9340
predicted_AVG0.2227
predicted_BB0.1860
predicted_H0.6530
predicted_HBP0.0160
predicted_HR0.0630
predicted_OBP0.2685
predicted_R0.2160
predicted_RBI0.4510
predicted_SLG0.3200
predicted_SO0.8930
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.08900.09100.0898model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB2.82202.93402.8666model_form_blend
predicted_AVG0.24900.22270.2385model_form_blend
predicted_BB0.17800.18600.1812model_form_blend
predicted_H0.64000.65300.6452model_form_blend
predicted_HBP-0.01600.0160form_only
predicted_HR0.08000.06300.0732model_form_blend
predicted_OBP0.28100.26850.2760model_form_blend
predicted_R0.28900.21600.2599model_form_blend
predicted_RBI0.41000.45100.4263model_form_blend
predicted_SLG0.34200.32000.3332model_form_blend
predicted_SO0.93300.89300.9171model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date111
Season rows before report date111
Report year2026
Profile rows used45
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR1
R1
RBI2
BB0
SO0
SF0
HBP0
season_avg0.244

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB0
Hitting_battingOrder8
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedSS
gameID20260616_MIN@TEX
game_typefull
mlbID656484
playerID656484
playerNameTristan Gray
pos3B
startedTrue
startingPositionSS
teamMIN
teamID17
game_date2026-06-16
sl_k_percent30.0
sl_bb_percent5.7
sl_woba0.289
sl_xwoba0.292
sl_xba0.239
sl_xslg0.366
sl_sweet_spot_percent41.6
sl_barrel_batted_rate6.8
sl_hard_hit_percent41.6
sl_exit_velocity_avg89.4
sl_launch_angle_avg14.8
sl_whiff_percent34.0
sl_swing_percent55.4
Luke Keaschall (807712) · BATTER · 2B · Team MIN
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 227
All-history rows before 20260618: 227
System season_avg: 0.2460
Data season_avg (2026 season-to-date): 0.2434
Diff (system - data): 0.0026
System opponent_avg: 0.2860

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1760.0000.000Hitting_2B0.1811.000-0.181-1.000
predicted_3B0.0150.0000.000Hitting_3B0.0180.000-0.0180.000
predicted_AB3.5884.0004.000Hitting_AB3.6744.0000.3260.000
predicted_AVG0.2420.2500.250Hitting_AVG0.2430.5000.007-0.250
predicted_BB0.3680.0000.000Hitting_BB0.4011.000-0.401-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0440.000-0.0440.000
predicted_H0.7801.0001.000Hitting_H0.8942.0000.106-1.000
predicted_HR0.0800.0000.000Hitting_HR0.0260.000-0.0260.000
predicted_OBP0.3260.2500.250Hitting_OBP0.3260.600-0.076-0.350
predicted_R0.4850.0001.000Hitting_R0.4931.000-0.493-1.000
predicted_RBI0.3800.0000.000Hitting_RBI0.3831.000-0.383-1.000
predicted_SB-0.0000.000BaseRunning_SB0.1940.000-0.1940.000
predicted_SLG0.3770.2500.250Hitting_SLG0.3240.750-0.074-0.500
predicted_SO0.6471.0001.000Hitting_SO0.6391.0000.3610.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics2
Worse Metrics9
Biggest Boostpredicted_AB: 3.5880 -> 4.0000 (boost 0.4120, better)
Biggest Deboostpredicted_R: 0.4850 -> 0.0000 (deboost -0.4850, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend00000--Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3284 -> 0.3049 (deboost -0.0235, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling83526predicted_AB: 3.5556 -> 4.0000 (boost 0.4444, better)predicted_RBI: 0.3907 -> 0.0000 (deboost -0.3907, worse)AB rounded to 4 (raw=3.59), rates preserved: AVG=0.227 HR/AB=0.023
5consistency_constraints11010predicted_R: 0.5293 -> 1.0000 (boost 0.4707, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2292 -> 0.2500 (boost 0.0208, better)predicted_SLG: 0.3601 -> 0.2500 (deboost -0.1101, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference10101-predicted_R: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.2500 -> 0.3601 (boost 0.1101, better)predicted_AVG: 0.2500 -> 0.2292 (deboost -0.0208, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "807712",
  "player_name": "Luke Keaschall",
  "position": "2B",
  "team": "MIN",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.176,
        "predicted_3B": 0.015,
        "predicted_AB": 3.588,
        "predicted_AVG": 0.242,
        "predicted_BB": 0.368,
        "predicted_H": 0.78,
        "predicted_HR": 0.08,
        "predicted_OBP": 0.326,
        "predicted_R": 0.485,
        "predicted_RBI": 0.38,
        "predicted_SLG": 0.377,
        "predicted_SO": 0.647
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1962,
        "predicted_3B": 0.0125,
        "predicted_AB": 3.5556,
        "predicted_AVG": 0.2433,
        "predicted_BB": 0.3865,
        "predicted_H": 0.8141,
        "predicted_HBP": 0.054,
        "predicted_HR": 0.0817,
        "predicted_OBP": 0.3284,
        "predicted_R": 0.528,
        "predicted_RBI": 0.3897,
        "predicted_SLG": 0.381,
        "predicted_SO": 0.6874
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.176,
          "after": 0.1962,
          "delta": 0.0202,
          "percent_delta": 0.1148,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.015,
          "after": 0.0125,
          "delta": -0.0025,
          "percent_delta": -0.1667,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.588,
          "after": 3.5556,
          "delta": -0.0324,
          "percent_delta": -0.009,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.242,
          "after": 0.2433,
          "delta": 0.0013,
          "percent_delta": 0.0054,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.368,
          "after": 0.3865,
          "delta": 0.0185,
          "percent_delta": 0.0503,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.78,
          "after": 0.8141,
          "delta": 0.0341,
          "percent_delta": 0.0437,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.08,
          "after": 0.0817,
          "delta": 0.0017,
          "percent_delta": 0.0212,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.326,
          "after": 0.3284,
          "delta": 0.0024,
          "percent_delta": 0.0074,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.485,
          "after": 0.528,
          "delta": 0.043,
          "percent_delta": 0.0887,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.38,
          "after": 0.3897,
          "delta": 0.0097,
          "percent_delta": 0.0255,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.377,
          "after": 0.381,
          "delta": 0.004,
          "percent_delta": 0.0106,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.647,
          "after": 0.6874,
          "delta": 0.0404,
          "percent_delta": 0.0624,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 68
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1962,
        "predicted_3B": 0.0125,
        "predicted_AB": 3.5556,
        "predicted_AVG": 0.2292,
        "predicted_BB": 0.3874,
        "predicted_H": 0.8149,
        "predicted_HBP": 0.054,
        "predicted_HR": 0.0815,
        "predicted_OBP": 0.3049,
        "predicted_R": 0.5293,
        "predicted_RBI": 0.3907,
        "predicted_SLG": 0.3601,
        "predicted_SO": 0.6858
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1962,
          "after": 0.1962,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0125,
          "after": 0.0125,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.5556,
          "after": 3.5556,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2433,
          "after": 0.2292,
          "delta": -0.0141,
          "percent_delta": -0.058,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3865,
          "after": 0.3874,
          "delta": 0.0009,
          "percent_delta": 0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8141,
          "after": 0.8149,
          "delta": 0.0008,
          "percent_delta": 0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.054,
          "after": 0.054,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0817,
          "after": 0.0815,
          "delta": -0.0002,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3284,
          "after": 0.3049,
          "delta": -0.0235,
          "percent_delta": -0.0716,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.528,
          "after": 0.5293,
          "delta": 0.0013,
          "percent_delta": 0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3897,
          "after": 0.3907,
          "delta": 0.001,
          "percent_delta": 0.0026,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.381,
          "after": 0.3601,
          "delta": -0.0209,
          "percent_delta": -0.0549,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6874,
          "after": 0.6858,
          "delta": -0.0016,
          "percent_delta": -0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3284,
          "after": 0.3049,
          "delta": -0.0235,
          "percent_delta": -0.0716,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.59), rates preserved: AVG=0.227 HR/AB=0.023",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1962,
          "after": 0.0,
          "delta": -0.1962,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0125,
          "after": 0.0,
          "delta": -0.0125,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.5556,
          "after": 4.0,
          "delta": 0.4444,
          "percent_delta": 0.125,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3874,
          "after": 0.0,
          "delta": -0.3874,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8149,
          "after": 1.0,
          "delta": 0.1851,
          "percent_delta": 0.2271,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.054,
          "after": 0.0,
          "delta": -0.054,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0815,
          "after": 0.0,
          "delta": -0.0815,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3907,
          "after": 0.0,
          "delta": -0.3907,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6858,
          "after": 1.0,
          "delta": 0.3142,
          "percent_delta": 0.4582,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 3,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.5556,
          "after": 4.0,
          "delta": 0.4444,
          "percent_delta": 0.125,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3907,
          "after": 0.0,
          "delta": -0.3907,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5293,
          "after": 1.0,
          "delta": 0.4707,
          "percent_delta": 0.8893,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5293,
          "after": 1.0,
          "delta": 0.4707,
          "percent_delta": 0.8893,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2292,
          "after": 0.25,
          "delta": 0.0208,
          "percent_delta": 0.0908,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3049,
          "after": 0.25,
          "delta": -0.0549,
          "percent_delta": -0.1801,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3601,
          "after": 0.25,
          "delta": -0.1101,
          "percent_delta": -0.3057,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2292,
          "after": 0.25,
          "delta": 0.0208,
          "percent_delta": 0.0908,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3601,
          "after": 0.25,
          "delta": -0.1101,
          "percent_delta": -0.3057,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2292,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3049,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3601,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2292,
          "delta": -0.0208,
          "percent_delta": -0.0832,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3049,
          "delta": 0.0549,
          "percent_delta": 0.2197,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3601,
          "delta": 0.1101,
          "percent_delta": 0.4406,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3601,
          "delta": 0.1101,
          "percent_delta": 0.4406,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2292,
          "delta": -0.0208,
          "percent_delta": -0.0832,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.176,
        "after": 0.0,
        "delta": -0.176,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.015,
        "after": 0.0,
        "delta": -0.015,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.588,
        "after": 4.0,
        "delta": 0.412,
        "percent_delta": 0.1148,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.242,
        "after": 0.2292,
        "delta": -0.0128,
        "percent_delta": -0.0529,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.368,
        "after": 0.0,
        "delta": -0.368,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.78,
        "after": 1.0,
        "delta": 0.22,
        "percent_delta": 0.2821,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.08,
        "after": 0.0,
        "delta": -0.08,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.326,
        "after": 0.3049,
        "delta": -0.0211,
        "percent_delta": -0.0647,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.485,
        "after": 0.0,
        "delta": -0.485,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.38,
        "after": 0.0,
        "delta": -0.38,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.377,
        "after": 0.3601,
        "delta": -0.0169,
        "percent_delta": -0.0448,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.647,
        "after": 1.0,
        "delta": 0.353,
        "percent_delta": 0.5456,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 2,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.588,
        "after": 4.0,
        "delta": 0.412,
        "percent_delta": 0.1148,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_R",
        "before": 0.485,
        "after": 0.0,
        "delta": -0.485,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.176-
predicted_3B0.015-
predicted_AB3.588-
predicted_AVG0.242-
predicted_BB0.368-
predicted_H0.780-
predicted_HR0.080-
predicted_OBP0.326-
predicted_R0.485-
predicted_RBI0.380-
predicted_SLG0.377-
predicted_SO0.647-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1960.020
predicted_3B0.013-0.002
predicted_AB3.556-0.032
predicted_AVG0.2430.001
predicted_BB0.3870.019
predicted_H0.8140.034
predicted_HBP0.054-
predicted_HR0.0820.002
predicted_OBP0.3280.002
predicted_R0.5280.043
predicted_RBI0.3900.010
predicted_SLG0.3810.004
predicted_SO0.6870.040
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1960.000
predicted_3B0.0130.000
predicted_AB3.5560.000
predicted_AVG0.229-0.014
predicted_BB0.3870.001
predicted_H0.8150.001
predicted_HBP0.0540.000
predicted_HR0.082-0.000
predicted_OBP0.305-0.024
predicted_R0.5290.001
predicted_RBI0.3910.001
predicted_SLG0.360-0.021
predicted_SO0.686-0.002
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.59), rates preserved: AVG=0.227 HR/AB=0.023

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.196
predicted_3B0.000-0.013
predicted_AB4.0000.444
predicted_AVG0.2500.021
predicted_BB0.000-0.387
predicted_H1.0000.185
predicted_HR0.000-0.082
predicted_OBP0.250-0.055
predicted_R1.0000.471
predicted_RBI0.000-0.391
predicted_SLG0.250-0.110
predicted_SO1.0000.314
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 68
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0004.0002.0000.0001.0003.0005.0003.0005.0000.23530.35000.52940.23530.05880.17650.17650.2941
last_100.2010-32.0008.0002.0000.0001.0003.0005.0004.0007.0000.25000.35140.40620.25000.03120.09380.12500.2188
season0.6068-244.00060.00012.0001.0002.00024.00033.00025.00044.0000.24590.32250.32790.24590.00820.09840.10250.1803
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2240
predicted_3B0.0090
predicted_AB3.5110
predicted_AVG0.2452
predicted_BB0.4120
predicted_H0.8610
predicted_HBP0.0540
predicted_HR0.0840
predicted_OBP0.3318
predicted_R0.5870
predicted_RBI0.4030
predicted_SLG0.3864
predicted_SO0.7430
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.17600.22400.1962model_form_blend
predicted_3B0.01500.00900.0125model_form_blend
predicted_AB3.58803.51103.5556model_form_blend
predicted_AVG0.24200.24520.2433model_form_blend
predicted_BB0.36800.41200.3865model_form_blend
predicted_H0.78000.86100.8141model_form_blend
predicted_HBP-0.05400.0540form_only
predicted_HR0.08000.08400.0817model_form_blend
predicted_OBP0.32600.33180.3284model_form_blend
predicted_R0.48500.58700.5280model_form_blend
predicted_RBI0.38000.40300.3897model_form_blend
predicted_SLG0.37700.38640.3810model_form_blend
predicted_SO0.64700.74300.6874model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date227
Season rows before report date227
Report year2026
Profile rows used68
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.246

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB4
Hitting_AVG0.5
Hitting_BB1
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB3
Hitting_battingOrder7
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260616_MIN@TEX
game_typefull
mlbID807712
playerID807712
playerNameLuke Keaschall
pos2B
startedTrue
startingPosition2B
teamMIN
teamID17
game_date2026-06-16
sl_k_percent15.9
sl_bb_percent9.0
sl_woba0.296
sl_xwoba0.289
sl_xba0.228
sl_xslg0.335
sl_sweet_spot_percent36.0
sl_barrel_batted_rate3.0
sl_hard_hit_percent29.6
sl_exit_velocity_avg84.8
sl_launch_angle_avg17.0
sl_whiff_percent16.3
sl_swing_percent41.9
Joe Ryan (657746) · PITCHER · Starter · Team MIN
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 15
All-history rows before 20260618: 15

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB3.0003.0003.000Pitching_BB1.0670.0001.9333.000
predicted_ER1.0001.0001.000Pitching_ER1.9333.000-0.933-2.000
predicted_H4.0004.0004.000Pitching_H4.4006.000-0.400-2.000
predicted_IP6.0006.0006.000Pitching_InningsPitched5.4276.0000.5730.000
predicted_SO7.0007.0007.000Pitching_SO6.1338.0000.867-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_SO: 5.0000 -> 7.0000 (boost 2.0000, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2pitcher_quality_guardrail11010predicted_SO: 5.0000 -> 7.0000 (boost 2.0000, better)-Elite/strong starter guardrail capped a noisy simulation draw using season workload, ERA/WHIP, and weighted recent form.
3current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "657746",
  "player_name": "Joe Ryan",
  "position": "Starter",
  "team": "MIN",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 3.0,
        "predicted_ER": 1.0,
        "predicted_H": 4.0,
        "predicted_HR": 0.0,
        "predicted_IP": 6.0,
        "predicted_SO": 5.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "pitcher_quality_guardrail",
      "description": "Elite/strong starter guardrail capped a noisy simulation draw using season workload, ERA/WHIP, and weighted recent form.",
      "stats": {
        "predicted_BB": 3.0,
        "predicted_ER": 1.0,
        "predicted_H": 4.0,
        "predicted_HR": 0.0,
        "predicted_IP": 6.0,
        "predicted_SO": 7.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 6.0,
          "after": 6.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 5.0,
          "after": 7.0,
          "delta": 2.0,
          "percent_delta": 0.4,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 5.0,
          "after": 7.0,
          "delta": 2.0,
          "percent_delta": 0.4,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 3,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 3.0,
        "predicted_ER": 1.0,
        "predicted_H": 4.0,
        "predicted_HR": 0.0,
        "predicted_IP": 6.0,
        "predicted_R": 1.0,
        "predicted_SO": 7.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 6.0,
          "after": 6.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 7.0,
          "after": 7.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 3.0,
        "after": 3.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 4.0,
        "after": 4.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 6.0,
        "after": 6.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 5.0,
        "after": 7.0,
        "delta": 2.0,
        "percent_delta": 0.4,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 5.0,
        "after": 7.0,
        "delta": 2.0,
        "percent_delta": 0.4,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB3.000-
predicted_ER1.000-
predicted_H4.000-
predicted_HR0.000-
predicted_IP6.000-
predicted_SO5.000-
2. pitcher_quality_guardrail

Elite/strong starter guardrail capped a noisy simulation draw using season workload, ERA/WHIP, and weighted recent form.

MetricValueDelta vs Prev Step
predicted_BB3.0000.000
predicted_ER1.0000.000
predicted_H4.0000.000
predicted_HR0.0000.000
predicted_IP6.0000.000
predicted_SO7.0002.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 15
Reference playing time: 6.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.45531.20011.00029.0002.00040.0005.0003.12630.97890.34740.91580.06321.26320.1579
last_100.351055.00019.00048.00010.00064.0007.0003.10911.05450.34540.87270.18181.16360.1273
season0.201582.10029.00066.00016.00092.0008.0003.17000.99600.35220.80160.19431.11740.0972
Weighted Prediction From Real Data
MetricValue
predicted_BB1.1030
predicted_ER2.2530
predicted_ERA3.4738
predicted_H5.2650
predicted_HR0.8040
predicted_IP6.0000
predicted_SO6.6190
predicted_WHIP1.0909
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB3.00001.10301.9673model_form_blend
predicted_ER1.00002.25301.6821model_form_blend
predicted_ERA-3.47383.4738form_only
predicted_H4.00005.26504.6886model_form_blend
predicted_HR0.00000.80400.4377model_form_blend
predicted_IP6.00006.00006.0000model_form_blend
predicted_SO5.00006.61905.8813model_form_blend
predicted_WHIP-1.09091.0909form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date15
Season rows before report date15
Report year2026
Profile rows used15
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP6.0
H4
R1
ER1
BB3
SO7
HR0
BF25
Pitches102

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced24
Pitching_ER3
Pitching_ERA3.17
Pitching_Flyouts1
Pitching_Groundouts3
Pitching_H6
Pitching_HBP0
Pitching_HR1
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched6.0
Pitching_Pitches102
Pitching_R3
Pitching_SO8
Pitching_Strikes67
Pitching_Wild Pitch0
Pitching_pitchingOrder1
allPositionsPlayedP
gameID20260612_STL@MIN
game_typefull
mlbID657746
playerID657746
playerNameJoe Ryan
posP
startedTrue
startingPositionP
teamMIN
teamID17
game_date2026-06-12
sl_k_percent27.7
sl_bb_percent4.8
sl_woba0.268
sl_xwoba0.281
sl_sweet_spot_percent33.8
sl_barrel_batted_rate10.5
sl_hard_hit_percent43.4
sl_whiff_percent25.2
sl_swing_percent50.0
sl_avg_best_speed78.898495596
sl_avg_hyper_speed94.523390737
Anthony Banda (607455) · PITCHER · Middle Reliever · Team MIN
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 34
All-history rows before 20260618: 34

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.4121.000-0.412-1.000
predicted_ER0.0000.0000.000Pitching_ER0.4410.000-0.4410.000
predicted_H2.0002.0002.000Pitching_H0.7351.0001.2651.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.6560.1000.3440.900
predicted_SO0.0000.0000.000Pitching_SO0.7940.000-0.7940.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "607455",
  "player_name": "Anthony Banda",
  "position": "Middle Reliever",
  "team": "MIN",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 2.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 2.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 0.0,
        "delta": -1.0,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 0.0,
        "delta": -1.0,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H2.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 34
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.0000.0004.0002.0003.0000.0000.00001.50000.00001.00000.50000.75000.0000
last_100.35108.1000.0006.0006.0008.0000.0000.00001.44000.00000.72000.72000.96000.0000
season0.203430.00015.00025.00014.00027.0002.0004.50001.30000.50000.83330.46670.90000.0667
Weighted Prediction From Real Data
MetricValue
predicted_BB0.4070
predicted_ER0.2420
predicted_ERA2.5464
predicted_H0.7840
predicted_HR0.0630
predicted_IP1.0000
predicted_SO0.7630
predicted_WHIP1.3925
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.40700.1861model_form_blend
predicted_ER0.00000.24200.1106model_form_blend
predicted_ERA-2.54642.5464form_only
predicted_H2.00000.78401.4440model_form_blend
predicted_HR0.00000.06300.0288model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO1.00000.76300.8916model_form_blend
predicted_WHIP-1.39251.3925form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date34
Season rows before report date34
Report year2026
Profile rows used34
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H2
R0
ER0
BB0
SO0
HR0
BF5
Pitches19

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA4.50
Pitching_Flyouts1
Pitching_Groundouts0
Pitching_H1
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners2
Pitching_Inherited Runners Scored1
Pitching_InningsPitched0.1
Pitching_Pitches11
Pitching_R0
Pitching_SO0
Pitching_Strikes5
Pitching_Wild Pitch0
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260614_STL@MIN
game_typefull
mlbID607455
playerID607455
playerNameAnthony Banda
posP
startedFalse
startingPositionP
teamMIN
teamID17
game_date2026-06-14
sl_k_percent20.1
sl_bb_percent10.4
sl_woba0.32
sl_xwoba0.317
sl_sweet_spot_percent28.7
sl_barrel_batted_rate5.8
sl_hard_hit_percent37.9
sl_whiff_percent26.3
sl_swing_percent45.3
sl_avg_best_speed80.581873095
sl_avg_hyper_speed94.030973333
Travis Adams (701519) · PITCHER · Middle Reliever · Team MIN
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 12
All-history rows before 20260618: 12

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.5830.000-0.5830.000
predicted_ER0.0000.0000.000Pitching_ER1.0000.000-1.0000.000
predicted_H0.0000.0000.000Pitching_H1.4170.000-1.4170.000
predicted_IP1.0001.0001.000Pitching_InningsPitched1.2921.000-0.2920.000
predicted_SO0.0000.0000.000Pitching_SO1.6673.000-1.667-3.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "701519",
  "player_name": "Travis Adams",
  "position": "Middle Reliever",
  "team": "MIN",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 12
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4556.2004.0007.0002.0008.0002.0005.40001.35000.60001.05000.30001.20000.3000
last_100.351013.0009.00011.0005.00015.0004.0006.23081.23080.69230.84610.38461.15390.3077
season0.201216.20012.00017.0007.00020.0004.0006.48001.44000.72001.02000.42001.20000.2400
Weighted Prediction From Real Data
MetricValue
predicted_BB0.4070
predicted_ER0.6380
predicted_ERA5.0653
predicted_H1.1030
predicted_HR0.2310
predicted_IP1.0000
predicted_SO1.1730
predicted_WHIP1.3329
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.40700.1611model_form_blend
predicted_ER0.00000.63800.2525model_form_blend
predicted_ERA-5.06535.0653form_only
predicted_H0.00001.10300.4365model_form_blend
predicted_HR0.00000.23100.0914model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00001.17300.4643model_form_blend
predicted_WHIP-1.33291.3329form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date12
Season rows before report date12
Report year2026
Profile rows used12
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB0
SO0
HR0
BF3
Pitches21

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA6.48
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches13
Pitching_R0
Pitching_SO3
Pitching_Strikes10
Pitching_Wild Pitch0
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260616_MIN@TEX
game_typefull
mlbID701519
playerID701519
playerNameTravis Adams
posP
startedFalse
startingPositionP
teamMIN
teamID17
game_date2026-06-16
sl_k_percent27.0
sl_bb_percent9.5
sl_woba0.349
sl_xwoba0.33
sl_sweet_spot_percent40.4
sl_barrel_batted_rate10.6
sl_hard_hit_percent31.9
sl_whiff_percent29.7
sl_swing_percent48.9
sl_avg_best_speed73.788357391
sl_avg_hyper_speed93.978330444
Yoendrys Gómez (672782) · PITCHER · Middle Reliever · Team MIN
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 20
All-history rows before 20260618: 20

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB0.3500.0000.6501.000
predicted_ER0.0000.0000.000Pitching_ER0.1500.000-0.1500.000
predicted_H0.0000.0000.000Pitching_H0.5500.000-0.5500.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.7201.1000.280-0.100
predicted_SO0.0000.0000.000Pitching_SO1.0501.000-1.050-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "672782",
  "player_name": "Yoendrys Gómez",
  "position": "Middle Reliever",
  "team": "MIN",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 0.0,
        "delta": -1.0,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 0.0,
        "delta": -1.0,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 29
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.1002.0005.0002.0003.0000.0004.15381.61540.46151.15390.46150.69230.0000
last_100.35109.0002.0007.0004.00011.0000.0002.00001.22220.22220.77780.44441.22220.0000
season0.202935.00015.00030.00017.00034.0005.0003.85711.34290.42860.85710.48570.97140.1429
Weighted Prediction From Real Data
MetricValue
predicted_BB0.4360
predicted_ER0.4420
predicted_ERA3.8292
predicted_H1.0050
predicted_HR0.0810
predicted_IP1.0000
predicted_SO0.9720
predicted_WHIP1.3873
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00000.43600.7331model_form_blend
predicted_ER0.00000.44200.2092model_form_blend
predicted_ERA-3.82923.8292form_only
predicted_H0.00001.00500.4756model_form_blend
predicted_HR0.00000.08100.0383model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO1.00000.97200.9867model_form_blend
predicted_WHIP-1.38731.3873form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date20
Season rows before report date20
Report year2026
Profile rows used29
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB1
SO0
HR0
BF4
Pitches17

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER0
Pitching_ERA3.86
Pitching_Flyouts1
Pitching_Groundouts2
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners1
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.1
Pitching_Pitches15
Pitching_R0
Pitching_SO1
Pitching_Strikes10
Pitching_Wild Pitch0
Pitching_decisionS
Pitching_pitchingOrder5
allPositionsPlayedP
gameID20260615_MIN@TEX
game_typefull
mlbID672782
playerID672782
playerNameYoendrys Gómez
posP
startedFalse
startingPositionP
teamMIN
teamID17
game_date2026-06-15
sl_k_percent22.1
sl_bb_percent11.0
sl_woba0.315
sl_xwoba0.356
sl_sweet_spot_percent33.0
sl_barrel_batted_rate11.8
sl_hard_hit_percent43.0
sl_whiff_percent25.2
sl_swing_percent46.9
sl_avg_best_speed78.497553913
sl_avg_hyper_speed94.436798571

Home Team: TEX

Home Pitcher Deep Analysis

FieldValue
PitcherJack Leiter
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score-0.2171
ESPN Rank586
Movement AvailableTrue
Primary Pitch-
Movement Score0.1361
Avg Velo92.1599
Avg Spin2335.5300
HB Inches0
IVB Inches0
Release Extension0
Pre IP5.1000
Pre ER2
Pre H5
Pre BB1
Pre SO4
Season ERA4.9737
Season WHIP1.4079
Role Avg IP5.4290
Recent Avg IP5.2670
Last Start IP5
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "TEX",
    "games": 79,
    "wins": 39,
    "losses": 40,
    "win_pct": 0.4937,
    "runs_scored": 320.0,
    "runs_allowed": 322.0,
    "run_differential": -2.0,
    "run_differential_per_game": -0.0253,
    "avg_runs_scored": 4.0506,
    "avg_runs_allowed": 4.0759,
    "offense_index": 0.8989,
    "defense_index": 1.1056,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 3.7,
      "avg_runs_allowed": 5.3,
      "run_differential": -16.0
    },
    "available": true,
    "quality_score": -0.0434
  },
  "opponent": {
    "team": "MIN",
    "games": 81,
    "wins": 38,
    "losses": 43,
    "win_pct": 0.4691,
    "runs_scored": 390.0,
    "runs_allowed": 408.0,
    "run_differential": -18.0,
    "run_differential_per_game": -0.2222,
    "avg_runs_scored": 4.8148,
    "avg_runs_allowed": 5.037,
    "offense_index": 1.0685,
    "defense_index": 0.8946,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 5.9,
      "run_differential": -6.0
    },
    "available": true,
    "quality_score": -0.0534
  },
  "edges": {
    "quality_edge": 0.01,
    "offense_edge": -0.1011,
    "opponent_offense_edge": 0.0685,
    "defense_strength": 0.1056,
    "opponent_defense_weakness": 0.1054,
    "recent_win_pct_edge": -0.1
  },
  "player_factors": {
    "ip": 1.0008,
    "run_prevention": 0.9999,
    "strikeout": 0.9948
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "683004",
    "profile": {
      "available": true,
      "pitcher_id": "683004",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 240.0,
        "k_percent": 23.6,
        "bb_percent": 9.9,
        "woba": 0.332,
        "xwoba": 0.333,
        "sweet_spot_percent": 37.0,
        "barrel_batted_rate": 10.0,
        "hard_hit_percent": 40.2,
        "avg_best_speed": 76.3779,
        "avg_hyper_speed": 94.0797,
        "whiff_percent": 25.5,
        "swing_percent": 47.5
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.4301,
        "command_and_miss": 0.0257,
        "regression_edge": -0.0286,
        "xwoba_edge": -0.5143,
        "barrel_edge": -0.6,
        "hard_hit_edge": -0.2714,
        "whiff_edge": -0.0286,
        "bb_edge": -0.175,
        "pitch_design_score": 0.1361
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "683004",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 96,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 96,
          "pitch_usage": 0.0,
          "release_speed": 92.15993154511234,
          "release_spin_rate": 2335.530048343372,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 96,
            "pitch_usage": 0.0,
            "release_speed": 92.15993154511234,
            "release_spin_rate": 2335.530048343372,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 92.1599,
          "release_spin_rate": 2335.53,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": 0.1361,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": 0.9724,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": -0.2171,
      "sample_weight": 0.96,
      "run_prevention_factor": 1.0185,
      "strikeout_factor": 1.0049,
      "walk_factor": 1.0134,
      "homer_factor": 1.0713,
      "woba_minus_xwoba": -0.001,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "683004",
        "espn_id": 4622181,
        "player_name": "Jack Leiter",
        "team": "TEX",
        "role": "pitcher",
        "espn_rank": 586,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 586,
          "gp_value": 14.0,
          "gp_rank": 279,
          "gs_value": 14.0,
          "gs_rank": 37,
          "qs_value": 2.0,
          "qs_rank": 109,
          "era_value": 4.8552,
          "era_rank": 57.0,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 6.0,
          "l_rank": 17,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 76.0,
          "ip_rank": 54,
          "h_value": 73.0,
          "h_rank": 44,
          "er_value": 41.0,
          "er_rank": 20,
          "hr_value": 12.0,
          "hr_rank": 30,
          "bb_value": 33.0,
          "bb_rank": 13,
          "k_value": 79.0,
          "k_rank": 34,
          "k_per_9_value": 9.355263,
          "k_per_9_rank": 17,
          "whip_value": 1.3947,
          "whip_rank": 57.0,
          "war_value": -0.27,
          "war_rank": 1.0
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 3.0,
        "factor": 1.0178,
        "adjusted": 3
      },
      "predicted_H": {
        "original": 5.0,
        "factor": 1.0178,
        "adjusted": 5
      },
      "predicted_BB": {
        "original": 2.0,
        "factor": 1.0129,
        "adjusted": 2
      },
      "predicted_HR": {
        "original": 1.0,
        "factor": 1.0684,
        "adjusted": 1
      },
      "predicted_SO": {
        "original": 5.0,
        "factor": 1.0047,
        "adjusted": 5
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 55.2,
    "ER": 31,
    "H": 53,
    "BB": 24,
    "SO": 55,
    "HR": 9,
    "ERA": 5.0119760479041915,
    "WHIP": 1.3832335329341316,
    "K9": 8.892215568862275,
    "HR9": 1.4550898203592812,
    "games_pitched": 10,
    "quality_starts": 1,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-12T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "683004",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 96,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 96,
    "pitch_usage": 0.0,
    "release_speed": 92.15993154511234,
    "release_spin_rate": 2335.530048343372,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 96,
      "pitch_usage": 0.0,
      "release_speed": 92.15993154511234,
      "release_spin_rate": 2335.530048343372,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 92.1599,
    "release_spin_rate": 2335.53,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": 0.1361,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": 0.9724,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "role": "pitcher",
  "player_id": "683004",
  "report_date": "20260618_M",
  "season_year": 2026,
  "rows_used": 14,
  "reference_playing_time": 5.333,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 26.1,
        "ER": 18.0,
        "R": 19.0,
        "H": 28.0,
        "BB": 12.0,
        "SO": 24.0,
        "HR": 4.0,
        "BF": 121.0,
        "Pitches": 474.0
      },
      "per_game": {
        "IP": 5.1,
        "ER": 3.6,
        "R": 3.8,
        "H": 5.6,
        "BB": 2.4,
        "SO": 4.8,
        "HR": 0.8,
        "BF": 24.2,
        "Pitches": 94.8
      },
      "rates": {
        "ERA": 6.1519,
        "WHIP": 1.519,
        "ER_per_IP": 0.68354,
        "H_per_IP": 1.06329,
        "BB_per_IP": 0.4557,
        "SO_per_IP": 0.91139,
        "HR_per_IP": 0.1519
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 55.2,
        "ER": 31.0,
        "R": 33.0,
        "H": 53.0,
        "BB": 24.0,
        "SO": 55.0,
        "HR": 9.0,
        "BF": 245.0,
        "Pitches": 946.0
      },
      "per_game": {
        "IP": 5.2,
        "ER": 3.1,
        "R": 3.3,
        "H": 5.3,
        "BB": 2.4,
        "SO": 5.5,
        "HR": 0.9,
        "BF": 24.5,
        "Pitches": 94.6
      },
      "rates": {
        "ERA": 5.012,
        "WHIP": 1.3832,
        "ER_per_IP": 0.55689,
        "H_per_IP": 0.9521,
        "BB_per_IP": 0.43114,
        "SO_per_IP": 0.98802,
        "HR_per_IP": 0.16168
      }
    },
    "season": {
      "games": 14,
      "totals": {
        "IP": 76.0,
        "ER": 42.0,
        "R": 44.0,
        "H": 74.0,
        "BB": 33.0,
        "SO": 79.0,
        "HR": 12.0,
        "BF": 335.0,
        "Pitches": 1321.0
      },
      "per_game": {
        "IP": 5.1,
        "ER": 3.0,
        "R": 3.1429,
        "H": 5.2857,
        "BB": 2.3571,
        "SO": 5.6429,
        "HR": 0.8571,
        "BF": 23.9286,
        "Pitches": 94.3571
      },
      "rates": {
        "ERA": 4.9737,
        "WHIP": 1.4079,
        "ER_per_IP": 0.55263,
        "H_per_IP": 0.97368,
        "BB_per_IP": 0.43421,
        "SO_per_IP": 1.03947,
        "HR_per_IP": 0.15789
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 5.1,
    "predicted_ER": 3.162,
    "predicted_H": 5.408,
    "predicted_BB": 2.286,
    "predicted_SO": 5.186,
    "predicted_HR": 0.833,
    "predicted_ERA": 5.2517,
    "predicted_WHIP": 1.4198
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.4612,
  "form_weight": 0.5388,
  "form_reliability": 0.7368,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 5.1,
      "form": 5.1,
      "final": 5.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 2.0,
      "form": 3.162,
      "final": 2.6261,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 5.0,
      "form": 5.408,
      "final": 5.2198,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 2.286,
      "final": 1.6929,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 4.0,
      "form": 5.186,
      "final": 4.639,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 1.0,
      "form": 0.833,
      "final": 0.91,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 5.2517,
      "final": 5.2517,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.4198,
      "final": 1.4198,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherJacob Latz
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.3734
ESPN Rank50
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1.1000
Pre ER1
Pre H2
Pre BB0
Pre SO0
Season ERA0.8100
Season WHIP0.4800
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "TEX",
    "games": 79,
    "wins": 39,
    "losses": 40,
    "win_pct": 0.4937,
    "runs_scored": 320.0,
    "runs_allowed": 322.0,
    "run_differential": -2.0,
    "run_differential_per_game": -0.0253,
    "avg_runs_scored": 4.0506,
    "avg_runs_allowed": 4.0759,
    "offense_index": 0.8989,
    "defense_index": 1.1056,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 3.7,
      "avg_runs_allowed": 5.3,
      "run_differential": -16.0
    },
    "available": true,
    "quality_score": -0.0434
  },
  "opponent": {
    "team": "MIN",
    "games": 81,
    "wins": 38,
    "losses": 43,
    "win_pct": 0.4691,
    "runs_scored": 390.0,
    "runs_allowed": 408.0,
    "run_differential": -18.0,
    "run_differential_per_game": -0.2222,
    "avg_runs_scored": 4.8148,
    "avg_runs_allowed": 5.037,
    "offense_index": 1.0685,
    "defense_index": 0.8946,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 5.9,
      "run_differential": -6.0
    },
    "available": true,
    "quality_score": -0.0534
  },
  "edges": {
    "quality_edge": 0.01,
    "offense_edge": -0.1011,
    "opponent_offense_edge": 0.0685,
    "defense_strength": 0.1056,
    "opponent_defense_weakness": 0.1054,
    "recent_win_pct_edge": -0.1
  },
  "player_factors": {
    "ip": 1.0008,
    "run_prevention": 0.9999,
    "strikeout": 0.9948
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "656641",
    "profile": {
      "available": true,
      "pitcher_id": "656641",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 84.0,
        "k_percent": 29.2,
        "bb_percent": 5.8,
        "woba": 0.173,
        "xwoba": 0.236,
        "sweet_spot_percent": 20.5,
        "barrel_batted_rate": 6.4,
        "hard_hit_percent": 42.3,
        "avg_best_speed": 79.1395,
        "avg_hyper_speed": 94.0419,
        "whiff_percent": 29.3,
        "swing_percent": 48.9
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 1.4407,
        "command_and_miss": 0.7807,
        "regression_edge": -1.8,
        "xwoba_edge": 2.2571,
        "barrel_edge": 0.2,
        "hard_hit_edge": -0.5714,
        "whiff_edge": 0.5143,
        "bb_edge": 0.85,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "656641",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.3734,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9683,
      "strikeout_factor": 1.0265,
      "walk_factor": 0.9694,
      "homer_factor": 0.9726,
      "woba_minus_xwoba": -0.063,
      "regression_flag": "negative_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "656641",
        "espn_id": 3210625,
        "player_name": "Jacob Latz",
        "team": "TEX",
        "role": "pitcher",
        "espn_rank": 50,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 50,
          "gp_value": 26.0,
          "gp_rank": 116,
          "gs_value": 1.0,
          "gs_rank": 240,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 1.62,
          "era_rank": null,
          "w_value": 1.0,
          "w_rank": 287,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 12.0,
          "sv_rank": 11,
          "hld_value": 2.0,
          "hld_rank": 165,
          "ip_value": 33.1,
          "ip_rank": 204,
          "h_value": 13.0,
          "h_rank": 439,
          "er_value": 6.0,
          "er_rank": 464,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 7.0,
          "bb_rank": 394,
          "k_value": 35.0,
          "k_rank": 199,
          "k_per_9_value": 9.45,
          "k_per_9_rank": 26,
          "whip_value": 0.6,
          "whip_rank": null,
          "war_value": 1.48,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9857,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9857,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9862,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9877,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 3.0,
        "factor": 1.0119,
        "adjusted": 3
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 12.2,
    "ER": 1,
    "H": 5,
    "BB": 2,
    "SO": 18,
    "HR": 1,
    "ERA": 0.7105263157894737,
    "WHIP": 0.5526315789473685,
    "K9": 12.789473684210527,
    "HR9": 0.7105263157894737,
    "games_pitched": 9,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-14T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "656641",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.619,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5697,
    "prior_weight": 0.4303
  },
  "role": "pitcher",
  "player_id": "656641",
  "report_date": "20260618_M",
  "season_year": 2026,
  "rows_used": 25,
  "reference_playing_time": 1.333,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 7.1,
        "ER": 0.0,
        "R": 0.0,
        "H": 2.0,
        "BB": 2.0,
        "SO": 11.0,
        "HR": 0.0,
        "BF": 25.0,
        "Pitches": 107.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.4,
        "BB": 0.4,
        "SO": 2.2,
        "HR": 0.0,
        "BF": 5.0,
        "Pitches": 21.4
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 0.5455,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.27273,
        "BB_per_IP": 0.27273,
        "SO_per_IP": 1.5,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 14.2,
        "ER": 1.0,
        "R": 1.0,
        "H": 5.0,
        "BB": 2.0,
        "SO": 19.0,
        "HR": 1.0,
        "BF": 50.0,
        "Pitches": 197.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.1,
        "R": 0.1,
        "H": 0.5,
        "BB": 0.2,
        "SO": 1.9,
        "HR": 0.1,
        "BF": 5.0,
        "Pitches": 19.7
      },
      "rates": {
        "ERA": 0.6136,
        "WHIP": 0.4773,
        "ER_per_IP": 0.06818,
        "H_per_IP": 0.34091,
        "BB_per_IP": 0.13636,
        "SO_per_IP": 1.29545,
        "HR_per_IP": 0.06818
      }
    },
    "season": {
      "games": 25,
      "totals": {
        "IP": 33.1,
        "ER": 3.0,
        "R": 3.0,
        "H": 10.0,
        "BB": 6.0,
        "SO": 35.0,
        "HR": 2.0,
        "BF": 116.0,
        "Pitches": 487.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.12,
        "R": 0.12,
        "H": 0.4,
        "BB": 0.24,
        "SO": 1.4,
        "HR": 0.08,
        "BF": 4.64,
        "Pitches": 19.48
      },
      "rates": {
        "ERA": 0.81,
        "WHIP": 0.48,
        "ER_per_IP": 0.09,
        "H_per_IP": 0.3,
        "BB_per_IP": 0.18,
        "SO_per_IP": 1.05,
        "HR_per_IP": 0.06
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.1,
    "predicted_ER": 0.319,
    "predicted_H": 0.788,
    "predicted_BB": 0.365,
    "predicted_SO": 1.555,
    "predicted_HR": 0.111,
    "predicted_ERA": 2.1545,
    "predicted_WHIP": 0.8651
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5318,
  "form_weight": 0.4682,
  "form_reliability": 0.5697,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.619,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5697,
    "prior_weight": 0.4303
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.1,
      "form": 1.1,
      "final": 1.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 1.0,
      "form": 0.319,
      "final": 0.6812,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 2.0,
      "form": 0.788,
      "final": 1.4325,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.365,
      "final": 0.1709,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 1.555,
      "final": 0.728,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 1.0,
      "form": 0.111,
      "final": 0.5838,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 2.1545,
      "final": 2.1545,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 0.8651,
      "final": 0.8651,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherJakob Junis
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.1268
ESPN Rank94
Movement AvailableTrue
Primary Pitch-
Movement Score-0.2025
Avg Velo86.1137
Avg Spin2057.1763
HB Inches0
IVB Inches0
Release Extension0
Pre IP1
Pre ER0
Pre H0
Pre BB1
Pre SO0
Season ERA1.8409
Season WHIP0.8182
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "TEX",
    "games": 79,
    "wins": 39,
    "losses": 40,
    "win_pct": 0.4937,
    "runs_scored": 320.0,
    "runs_allowed": 322.0,
    "run_differential": -2.0,
    "run_differential_per_game": -0.0253,
    "avg_runs_scored": 4.0506,
    "avg_runs_allowed": 4.0759,
    "offense_index": 0.8989,
    "defense_index": 1.1056,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 3.7,
      "avg_runs_allowed": 5.3,
      "run_differential": -16.0
    },
    "available": true,
    "quality_score": -0.0434
  },
  "opponent": {
    "team": "MIN",
    "games": 81,
    "wins": 38,
    "losses": 43,
    "win_pct": 0.4691,
    "runs_scored": 390.0,
    "runs_allowed": 408.0,
    "run_differential": -18.0,
    "run_differential_per_game": -0.2222,
    "avg_runs_scored": 4.8148,
    "avg_runs_allowed": 5.037,
    "offense_index": 1.0685,
    "defense_index": 0.8946,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 5.9,
      "run_differential": -6.0
    },
    "available": true,
    "quality_score": -0.0534
  },
  "edges": {
    "quality_edge": 0.01,
    "offense_edge": -0.1011,
    "opponent_offense_edge": 0.0685,
    "defense_strength": 0.1056,
    "opponent_defense_weakness": 0.1054,
    "recent_win_pct_edge": -0.1
  },
  "player_factors": {
    "ip": 1.0008,
    "run_prevention": 0.9999,
    "strikeout": 0.9948
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "596001",
    "profile": {
      "available": true,
      "pitcher_id": "596001",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 86.0,
        "k_percent": 18.6,
        "bb_percent": 4.4,
        "woba": 0.213,
        "xwoba": 0.289,
        "sweet_spot_percent": 34.5,
        "barrel_batted_rate": 3.6,
        "hard_hit_percent": 31.0,
        "avg_best_speed": 75.264,
        "avg_hyper_speed": 92.6916,
        "whiff_percent": 18.9,
        "swing_percent": 47.9
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 1.052,
        "command_and_miss": -0.3507,
        "regression_edge": -2.0,
        "xwoba_edge": 0.7429,
        "barrel_edge": 0.8222,
        "hard_hit_edge": 1.0429,
        "whiff_edge": -0.9714,
        "bb_edge": 1.2,
        "pitch_design_score": -0.2025
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "596001",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 10,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 10,
          "pitch_usage": 0.0,
          "release_speed": 86.113672875508,
          "release_spin_rate": 2057.1763194572372,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 10,
            "pitch_usage": 0.0,
            "release_speed": 86.113672875508,
            "release_spin_rate": 2057.1763194572372,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 86.1137,
          "release_spin_rate": 2057.1763,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.2025,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -1.4461,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.1268,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9892,
      "strikeout_factor": 0.9725,
      "walk_factor": 0.9568,
      "homer_factor": 0.9416,
      "woba_minus_xwoba": -0.076,
      "regression_flag": "negative_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "596001",
        "espn_id": 36056,
        "player_name": "Jakob Junis",
        "team": "TEX",
        "role": "pitcher",
        "espn_rank": 94,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 94,
          "gp_value": 25.0,
          "gp_rank": 125,
          "gs_value": 1.0,
          "gs_rank": 240,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 1.8409,
          "era_rank": null,
          "w_value": 1.0,
          "w_rank": 287,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 4.0,
          "sv_rank": 30,
          "hld_value": 7.0,
          "hld_rank": 54,
          "ip_value": 29.1,
          "ip_rank": 266,
          "h_value": 19.0,
          "h_rank": 352,
          "er_value": 6.0,
          "er_rank": 464,
          "hr_value": 0.0,
          "hr_rank": 578,
          "bb_value": 5.0,
          "bb_rank": 474,
          "k_value": 21.0,
          "k_rank": 345,
          "k_per_9_value": 6.443182,
          "k_per_9_rank": 35,
          "whip_value": 0.8181,
          "whip_rank": null,
          "war_value": 0.98,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9951,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9951,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9806,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9737,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 0.9876,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 13.0,
    "ER": 3,
    "H": 11,
    "BB": 0,
    "SO": 14,
    "HR": 0,
    "ERA": 2.076923076923077,
    "WHIP": 0.8461538461538463,
    "K9": 9.692307692307693,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-14T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "596001",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 10,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 10,
    "pitch_usage": 0.0,
    "release_speed": 86.113672875508,
    "release_spin_rate": 2057.1763194572372,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 10,
      "pitch_usage": 0.0,
      "release_speed": 86.113672875508,
      "release_spin_rate": 2057.1763194572372,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 86.1137,
    "release_spin_rate": 2057.1763,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.2025,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -1.4461,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.825,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5381,
    "prior_weight": 0.4619
  },
  "role": "pitcher",
  "player_id": "596001",
  "report_date": "20260618_M",
  "season_year": 2026,
  "rows_used": 25,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.1,
        "ER": 2.0,
        "R": 2.0,
        "H": 7.0,
        "BB": 0.0,
        "SO": 8.0,
        "HR": 0.0,
        "BF": 23.0,
        "Pitches": 80.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4,
        "R": 0.4,
        "H": 1.4,
        "BB": 0.0,
        "SO": 1.6,
        "HR": 0.0,
        "BF": 4.6,
        "Pitches": 16.0
      },
      "rates": {
        "ERA": 3.375,
        "WHIP": 1.3125,
        "ER_per_IP": 0.375,
        "H_per_IP": 1.3125,
        "BB_per_IP": 0.0,
        "SO_per_IP": 1.5,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 13.0,
        "ER": 3.0,
        "R": 3.0,
        "H": 11.0,
        "BB": 0.0,
        "SO": 14.0,
        "HR": 0.0,
        "BF": 50.0,
        "Pitches": 177.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.3,
        "R": 0.3,
        "H": 1.1,
        "BB": 0.0,
        "SO": 1.4,
        "HR": 0.0,
        "BF": 5.0,
        "Pitches": 17.7
      },
      "rates": {
        "ERA": 2.0769,
        "WHIP": 0.8462,
        "ER_per_IP": 0.23077,
        "H_per_IP": 0.84615,
        "BB_per_IP": 0.0,
        "SO_per_IP": 1.07692,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 25,
      "totals": {
        "IP": 29.1,
        "ER": 6.0,
        "R": 6.0,
        "H": 19.0,
        "BB": 5.0,
        "SO": 21.0,
        "HR": 0.0,
        "BF": 113.0,
        "Pitches": 397.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.24,
        "R": 0.24,
        "H": 0.76,
        "BB": 0.2,
        "SO": 0.84,
        "HR": 0.0,
        "BF": 4.52,
        "Pitches": 15.88
      },
      "rates": {
        "ERA": 1.8409,
        "WHIP": 0.8182,
        "ER_per_IP": 0.20455,
        "H_per_IP": 0.64773,
        "BB_per_IP": 0.17045,
        "SO_per_IP": 0.71591,
        "HR_per_IP": 0.0
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.426,
    "predicted_H": 1.095,
    "predicted_BB": 0.204,
    "predicted_SO": 1.182,
    "predicted_HR": 0.074,
    "predicted_ERA": 3.4889,
    "predicted_WHIP": 1.1829
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5452,
  "form_weight": 0.4548,
  "form_reliability": 0.5381,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.825,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5381,
    "prior_weight": 0.4619
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.426,
      "final": 0.1938,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 1.095,
      "final": 0.4981,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 0.204,
      "final": 0.6379,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 1.182,
      "final": 0.5376,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.074,
      "final": 0.0337,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.4889,
      "final": 3.4889,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1829,
      "final": 1.1829,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherCole Winn
RoleMiddle Reliever
Projection Source-
Savant Quality Score-0.0802
ESPN Rank626
Movement AvailableTrue
Primary Pitch-
Movement Score0.0324
Avg Velo90.3070
Avg Spin2376.0642
HB Inches0
IVB Inches0
Release Extension0
Pre IP0.2000
Pre ER1
Pre H2
Pre BB0
Pre SO1
Season ERA5.8154
Season WHIP1.4769
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "TEX",
    "games": 79,
    "wins": 39,
    "losses": 40,
    "win_pct": 0.4937,
    "runs_scored": 320.0,
    "runs_allowed": 322.0,
    "run_differential": -2.0,
    "run_differential_per_game": -0.0253,
    "avg_runs_scored": 4.0506,
    "avg_runs_allowed": 4.0759,
    "offense_index": 0.8989,
    "defense_index": 1.1056,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 3.7,
      "avg_runs_allowed": 5.3,
      "run_differential": -16.0
    },
    "available": true,
    "quality_score": -0.0434
  },
  "opponent": {
    "team": "MIN",
    "games": 81,
    "wins": 38,
    "losses": 43,
    "win_pct": 0.4691,
    "runs_scored": 390.0,
    "runs_allowed": 408.0,
    "run_differential": -18.0,
    "run_differential_per_game": -0.2222,
    "avg_runs_scored": 4.8148,
    "avg_runs_allowed": 5.037,
    "offense_index": 1.0685,
    "defense_index": 0.8946,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 5.9,
      "run_differential": -6.0
    },
    "available": true,
    "quality_score": -0.0534
  },
  "edges": {
    "quality_edge": 0.01,
    "offense_edge": -0.1011,
    "opponent_offense_edge": 0.0685,
    "defense_strength": 0.1056,
    "opponent_defense_weakness": 0.1054,
    "recent_win_pct_edge": -0.1
  },
  "player_factors": {
    "ip": 1.0008,
    "run_prevention": 0.9999,
    "strikeout": 0.9948
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "668390",
    "profile": {
      "available": true,
      "pitcher_id": "668390",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 88.0,
        "k_percent": 25.5,
        "bb_percent": 8.2,
        "woba": 0.33,
        "xwoba": 0.333,
        "sweet_spot_percent": 39.1,
        "barrel_batted_rate": 4.7,
        "hard_hit_percent": 48.4,
        "avg_best_speed": 78.6591,
        "avg_hyper_speed": 95.0354,
        "whiff_percent": 27.0,
        "swing_percent": 52.7
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.4504,
        "command_and_miss": 0.3079,
        "regression_edge": -0.0857,
        "xwoba_edge": -0.5143,
        "barrel_edge": 0.5778,
        "hard_hit_edge": -1.4429,
        "whiff_edge": 0.1857,
        "bb_edge": 0.25,
        "pitch_design_score": 0.0324
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "668390",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 15,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 15,
          "pitch_usage": 0.0,
          "release_speed": 90.30702898227581,
          "release_spin_rate": 2376.0641829067786,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 15,
            "pitch_usage": 0.0,
            "release_speed": 90.30702898227581,
            "release_spin_rate": 2376.0641829067786,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 90.307,
          "release_spin_rate": 2376.0642,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": 0.0324,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": 0.2312,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": -0.0802,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0068,
      "strikeout_factor": 1.0111,
      "walk_factor": 0.991,
      "homer_factor": 1.0121,
      "woba_minus_xwoba": -0.003,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "668390",
        "espn_id": 41177,
        "player_name": "Cole Winn",
        "team": "TEX",
        "role": "pitcher",
        "espn_rank": 626,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 626,
          "gp_value": 25.0,
          "gp_rank": 125,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 5.8153,
          "era_rank": null,
          "w_value": 2.0,
          "w_rank": 180,
          "l_value": 2.0,
          "l_rank": 185,
          "sv_value": 1.0,
          "sv_rank": 86,
          "hld_value": 6.0,
          "hld_rank": 68,
          "ip_value": 21.2,
          "ip_rank": 362,
          "h_value": 24.0,
          "h_rank": 276,
          "er_value": 14.0,
          "er_rank": 225,
          "hr_value": 3.0,
          "hr_rank": 258,
          "bb_value": 8.0,
          "bb_rank": 360,
          "k_value": 25.0,
          "k_rank": 302,
          "k_per_9_value": 10.384615,
          "k_per_9_rank": 22,
          "whip_value": 1.4769,
          "whip_rank": null,
          "war_value": -0.42,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 1.0031,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 1.0031,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.996,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0054,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.005,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 8.0,
    "ER": 6,
    "H": 12,
    "BB": 2,
    "SO": 9,
    "HR": 0,
    "ERA": 6.750000000000001,
    "WHIP": 1.7500000000000002,
    "K9": 10.125000000000002,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": true
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "668390",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 15,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 15,
    "pitch_usage": 0.0,
    "release_speed": 90.30702898227581,
    "release_spin_rate": 2376.0641829067786,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 15,
      "pitch_usage": 0.0,
      "release_speed": 90.30702898227581,
      "release_spin_rate": 2376.0641829067786,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 90.307,
    "release_spin_rate": 2376.0642,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": 0.0324,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": 0.2312,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.303,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4625,
    "prior_weight": 0.5375
  },
  "role": "pitcher",
  "player_id": "668390",
  "report_date": "20260618_M",
  "season_year": 2026,
  "rows_used": 25,
  "reference_playing_time": 0.667,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 3.2,
        "ER": 4.0,
        "R": 4.0,
        "H": 4.0,
        "BB": 1.0,
        "SO": 3.0,
        "HR": 0.0,
        "BF": 15.0,
        "Pitches": 59.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 0.8,
        "R": 0.8,
        "H": 0.8,
        "BB": 0.2,
        "SO": 0.6,
        "HR": 0.0,
        "BF": 3.0,
        "Pitches": 11.8
      },
      "rates": {
        "ERA": 9.8182,
        "WHIP": 1.3636,
        "ER_per_IP": 1.09091,
        "H_per_IP": 1.09091,
        "BB_per_IP": 0.27273,
        "SO_per_IP": 0.81818,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 8.0,
        "ER": 6.0,
        "R": 6.0,
        "H": 12.0,
        "BB": 2.0,
        "SO": 9.0,
        "HR": 0.0,
        "BF": 38.0,
        "Pitches": 127.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 0.6,
        "R": 0.6,
        "H": 1.2,
        "BB": 0.2,
        "SO": 0.9,
        "HR": 0.0,
        "BF": 3.8,
        "Pitches": 12.7
      },
      "rates": {
        "ERA": 6.75,
        "WHIP": 1.75,
        "ER_per_IP": 0.75,
        "H_per_IP": 1.5,
        "BB_per_IP": 0.25,
        "SO_per_IP": 1.125,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 25,
      "totals": {
        "IP": 21.2,
        "ER": 14.0,
        "R": 14.0,
        "H": 24.0,
        "BB": 8.0,
        "SO": 25.0,
        "HR": 3.0,
        "BF": 98.0,
        "Pitches": 372.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.56,
        "R": 0.56,
        "H": 0.96,
        "BB": 0.32,
        "SO": 1.0,
        "HR": 0.12,
        "BF": 3.92,
        "Pitches": 14.88
      },
      "rates": {
        "ERA": 5.8154,
        "WHIP": 1.4769,
        "ER_per_IP": 0.64615,
        "H_per_IP": 1.10769,
        "BB_per_IP": 0.36923,
        "SO_per_IP": 1.15385,
        "HR_per_IP": 0.13846
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 0.2,
    "predicted_ER": 0.473,
    "predicted_H": 0.764,
    "predicted_BB": 0.228,
    "predicted_SO": 0.672,
    "predicted_HR": 0.064,
    "predicted_ERA": 6.0972,
    "predicted_WHIP": 1.4224
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5771,
  "form_weight": 0.4229,
  "form_reliability": 0.4625,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.303,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4625,
    "prior_weight": 0.5375
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 0.2,
      "form": 0.2,
      "final": 0.2,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 1.0,
      "form": 0.473,
      "final": 0.7771,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 2.0,
      "form": 0.764,
      "final": 1.4773,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.228,
      "final": 0.0964,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 0.672,
      "final": 0.8613,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 1.0,
      "form": 0.064,
      "final": 0.6042,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 6.0972,
      "final": 6.0972,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.4224,
      "final": 1.4224,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherTyler Alexander
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.1410
ESPN Rank244
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP0.2000
Pre ER0
Pre H0
Pre BB0
Pre SO2
Season ERA3
Season WHIP1.4333
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "TEX",
    "games": 79,
    "wins": 39,
    "losses": 40,
    "win_pct": 0.4937,
    "runs_scored": 320.0,
    "runs_allowed": 322.0,
    "run_differential": -2.0,
    "run_differential_per_game": -0.0253,
    "avg_runs_scored": 4.0506,
    "avg_runs_allowed": 4.0759,
    "offense_index": 0.8989,
    "defense_index": 1.1056,
    "current_streak": "L2",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 3.7,
      "avg_runs_allowed": 5.3,
      "run_differential": -16.0
    },
    "available": true,
    "quality_score": -0.0434
  },
  "opponent": {
    "team": "MIN",
    "games": 81,
    "wins": 38,
    "losses": 43,
    "win_pct": 0.4691,
    "runs_scored": 390.0,
    "runs_allowed": 408.0,
    "run_differential": -18.0,
    "run_differential_per_game": -0.2222,
    "avg_runs_scored": 4.8148,
    "avg_runs_allowed": 5.037,
    "offense_index": 1.0685,
    "defense_index": 0.8946,
    "current_streak": "W3",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 5.9,
      "run_differential": -6.0
    },
    "available": true,
    "quality_score": -0.0534
  },
  "edges": {
    "quality_edge": 0.01,
    "offense_edge": -0.1011,
    "opponent_offense_edge": 0.0685,
    "defense_strength": 0.1056,
    "opponent_defense_weakness": 0.1054,
    "recent_win_pct_edge": -0.1
  },
  "player_factors": {
    "ip": 1.0008,
    "run_prevention": 0.9999,
    "strikeout": 0.9948
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "641302",
    "profile": {
      "available": true,
      "pitcher_id": "641302",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 101.0,
        "k_percent": 17.4,
        "bb_percent": 7.6,
        "woba": 0.334,
        "xwoba": 0.287,
        "sweet_spot_percent": 24.7,
        "barrel_batted_rate": 3.1,
        "hard_hit_percent": 32.0,
        "avg_best_speed": 75.5754,
        "avg_hyper_speed": 92.9811,
        "whiff_percent": 17.1,
        "swing_percent": 44.9
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.6346,
        "command_and_miss": -0.6779,
        "regression_edge": 1.3429,
        "xwoba_edge": 0.8,
        "barrel_edge": 0.9333,
        "hard_hit_edge": 0.9,
        "whiff_edge": -1.2286,
        "bb_edge": 0.4,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "641302",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.141,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.988,
      "strikeout_factor": 0.9648,
      "walk_factor": 0.9856,
      "homer_factor": 0.9394,
      "woba_minus_xwoba": 0.047,
      "regression_flag": "positive_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "641302",
        "espn_id": 40360,
        "player_name": "Tyler Alexander",
        "team": "TEX",
        "role": "pitcher",
        "espn_rank": 244,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 244,
          "gp_value": 30.0,
          "gp_rank": 64,
          "gs_value": 1.0,
          "gs_rank": 240,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 3.0,
          "era_rank": null,
          "w_value": 1.0,
          "w_rank": 287,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 2.0,
          "sv_rank": 56,
          "hld_value": 6.0,
          "hld_rank": 68,
          "ip_value": 30.0,
          "ip_rank": 251,
          "h_value": 34.0,
          "h_rank": 182,
          "er_value": 10.0,
          "er_rank": 324,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 9.0,
          "bb_rank": 332,
          "k_value": 23.0,
          "k_rank": 321,
          "k_per_9_value": 6.9,
          "k_per_9_rank": 34,
          "whip_value": 1.4333,
          "whip_rank": null,
          "war_value": 0.3,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9946,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9946,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9935,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9727,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 0.9842,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.0,
    "ER": 5,
    "H": 11,
    "BB": 3,
    "SO": 7,
    "HR": 1,
    "ERA": 5.0,
    "WHIP": 1.5555555555555556,
    "K9": 7.0,
    "HR9": 1.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": true
  },
  "fielding": {
    "errors": 1,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "641302",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.958,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5437,
    "prior_weight": 0.4563
  },
  "role": "pitcher",
  "player_id": "641302",
  "report_date": "20260618_M",
  "season_year": 2026,
  "rows_used": 30,
  "reference_playing_time": 0.667,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.1,
        "ER": 4.0,
        "R": 4.0,
        "H": 9.0,
        "BB": 1.0,
        "SO": 4.0,
        "HR": 0.0,
        "BF": 25.0,
        "Pitches": 77.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.8,
        "R": 0.8,
        "H": 1.8,
        "BB": 0.2,
        "SO": 0.8,
        "HR": 0.0,
        "BF": 5.0,
        "Pitches": 15.4
      },
      "rates": {
        "ERA": 6.75,
        "WHIP": 1.875,
        "ER_per_IP": 0.75,
        "H_per_IP": 1.6875,
        "BB_per_IP": 0.1875,
        "SO_per_IP": 0.75,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.0,
        "ER": 5.0,
        "R": 6.0,
        "H": 11.0,
        "BB": 3.0,
        "SO": 7.0,
        "HR": 1.0,
        "BF": 41.0,
        "Pitches": 146.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.5,
        "R": 0.6,
        "H": 1.1,
        "BB": 0.3,
        "SO": 0.7,
        "HR": 0.1,
        "BF": 4.1,
        "Pitches": 14.6
      },
      "rates": {
        "ERA": 5.0,
        "WHIP": 1.5556,
        "ER_per_IP": 0.55556,
        "H_per_IP": 1.22222,
        "BB_per_IP": 0.33333,
        "SO_per_IP": 0.77778,
        "HR_per_IP": 0.11111
      }
    },
    "season": {
      "games": 30,
      "totals": {
        "IP": 30.0,
        "ER": 10.0,
        "R": 12.0,
        "H": 34.0,
        "BB": 9.0,
        "SO": 23.0,
        "HR": 2.0,
        "BF": 131.0,
        "Pitches": 483.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3333,
        "R": 0.4,
        "H": 1.1333,
        "BB": 0.3,
        "SO": 0.7667,
        "HR": 0.0667,
        "BF": 4.3667,
        "Pitches": 16.1
      },
      "rates": {
        "ERA": 3.0,
        "WHIP": 1.4333,
        "ER_per_IP": 0.33333,
        "H_per_IP": 1.13333,
        "BB_per_IP": 0.3,
        "SO_per_IP": 0.76667,
        "HR_per_IP": 0.06667
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.47,
    "predicted_H": 1.029,
    "predicted_BB": 0.261,
    "predicted_SO": 0.715,
    "predicted_HR": 0.081,
    "predicted_ERA": 4.9863,
    "predicted_WHIP": 1.5208
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5428,
  "form_weight": 0.4572,
  "form_reliability": 0.5437,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.958,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5437,
    "prior_weight": 0.4563
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 0.2,
      "form": 1.0,
      "final": 0.2,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.47,
      "final": 0.2149,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 1.029,
      "final": 0.4705,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.261,
      "final": 0.1193,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 2.0,
      "form": 0.715,
      "final": 1.4125,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.081,
      "final": 0.037,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.9863,
      "final": 4.9863,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.5208,
      "final": 1.5208,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Joc Pederson (592626) · BATTER · DH · Team TEX
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 174
All-history rows before 20260618: 174
System season_avg: 0.2460
Data season_avg (2026 season-to-date): 0.2606
Diff (system - data): -0.0146
System opponent_avg: 0.1230

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1040.0000.000Hitting_2B0.1210.000-0.1210.000
predicted_3B0.0300.0000.000Hitting_3B0.0110.000-0.0110.000
predicted_AB2.7315.0003.000Hitting_AB2.9774.0002.0231.000
predicted_AVG0.2510.0000.333Hitting_AVG0.2610.250-0.261-0.250
predicted_BB0.4030.0000.000Hitting_BB0.4770.000-0.4770.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.3100.0001.000Hitting_H0.7761.000-0.776-1.000
predicted_HR0.0600.0000.000Hitting_HR0.1490.000-0.1490.000
predicted_OBP0.3110.0000.333Hitting_OBP0.3630.250-0.363-0.250
predicted_R0.4030.0000.000Hitting_R0.4430.000-0.4430.000
predicted_RBI0.1800.0000.000Hitting_RBI0.4020.000-0.4020.000
predicted_SLG0.4310.0000.333Hitting_SLG0.4590.250-0.459-0.250
predicted_SO0.6422.0001.000Hitting_SO0.7590.0001.2412.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics2
Deboosted Metrics9
Better Metrics1
Worse Metrics10
Biggest Boostpredicted_AB: 2.7310 -> 5.0000 (boost 2.2690, better)
Biggest Deboostpredicted_BB: 0.4030 -> 0.0000 (deboost -0.4030, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend76161predicted_H: 0.3100 -> 0.4956 (boost 0.1856, better)predicted_BB: 0.4030 -> 0.3467 (deboost -0.0563, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.4455 -> 0.3353 (deboost -0.1102, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling83526predicted_H: 0.4935 -> 1.0000 (boost 0.5065, better)predicted_BB: 0.3454 -> 0.0000 (deboost -0.3454, worse)AB rounded to 3 (raw=2.78), rates preserved: AVG=0.177 HR/AB=0.034
5bvp_blend00000--Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.000)
6consistency_constraints10101-predicted_R: 0.3978 -> 0.0000 (deboost -0.3978, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context22020predicted_AVG: 0.1773 -> 0.3330 (boost 0.1557, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference32112predicted_AB: 3.0000 -> 5.0000 (boost 2.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final20202-predicted_AVG: 0.3330 -> 0.1773 (deboost -0.1557, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "592626",
  "player_name": "Joc Pederson",
  "position": "DH",
  "team": "TEX",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.104,
        "predicted_3B": 0.03,
        "predicted_AB": 2.731,
        "predicted_AVG": 0.251,
        "predicted_BB": 0.403,
        "predicted_H": 0.31,
        "predicted_HR": 0.06,
        "predicted_OBP": 0.311,
        "predicted_R": 0.403,
        "predicted_RBI": 0.18,
        "predicted_SLG": 0.431,
        "predicted_SO": 0.642
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.092,
        "predicted_3B": 0.0325,
        "predicted_AB": 2.784,
        "predicted_AVG": 0.2569,
        "predicted_BB": 0.3467,
        "predicted_H": 0.4956,
        "predicted_HBP": 0.084,
        "predicted_HR": 0.0944,
        "predicted_OBP": 0.3243,
        "predicted_R": 0.4009,
        "predicted_RBI": 0.2566,
        "predicted_SLG": 0.4455,
        "predicted_SO": 0.6163
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.104,
          "after": 0.092,
          "delta": -0.012,
          "percent_delta": -0.1154,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.03,
          "after": 0.0325,
          "delta": 0.0025,
          "percent_delta": 0.0833,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.731,
          "after": 2.784,
          "delta": 0.053,
          "percent_delta": 0.0194,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.251,
          "after": 0.2569,
          "delta": 0.0059,
          "percent_delta": 0.0235,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.403,
          "after": 0.3467,
          "delta": -0.0563,
          "percent_delta": -0.1397,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.31,
          "after": 0.4956,
          "delta": 0.1856,
          "percent_delta": 0.5987,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.06,
          "after": 0.0944,
          "delta": 0.0344,
          "percent_delta": 0.5733,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.311,
          "after": 0.3243,
          "delta": 0.0133,
          "percent_delta": 0.0428,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.403,
          "after": 0.4009,
          "delta": -0.0021,
          "percent_delta": -0.0052,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.18,
          "after": 0.2566,
          "delta": 0.0766,
          "percent_delta": 0.4256,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.431,
          "after": 0.4455,
          "delta": 0.0145,
          "percent_delta": 0.0336,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.642,
          "after": 0.6163,
          "delta": -0.0257,
          "percent_delta": -0.04,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 6,
        "deboosted_metrics": 1,
        "better_metrics": 6,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.31,
          "after": 0.4956,
          "delta": 0.1856,
          "percent_delta": 0.5987,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.403,
          "after": 0.3467,
          "delta": -0.0563,
          "percent_delta": -0.1397,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 67
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.092,
        "predicted_3B": 0.0325,
        "predicted_AB": 2.784,
        "predicted_AVG": 0.1773,
        "predicted_BB": 0.3454,
        "predicted_H": 0.4935,
        "predicted_HBP": 0.084,
        "predicted_HR": 0.0943,
        "predicted_OBP": 0.2681,
        "predicted_R": 0.3978,
        "predicted_RBI": 0.2546,
        "predicted_SLG": 0.3353,
        "predicted_SO": 0.6186
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.092,
          "after": 0.092,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0325,
          "after": 0.0325,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.784,
          "after": 2.784,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2569,
          "after": 0.1773,
          "delta": -0.0796,
          "percent_delta": -0.3098,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3467,
          "after": 0.3454,
          "delta": -0.0013,
          "percent_delta": -0.0037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.4956,
          "after": 0.4935,
          "delta": -0.0021,
          "percent_delta": -0.0042,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.084,
          "after": 0.084,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0944,
          "after": 0.0943,
          "delta": -0.0001,
          "percent_delta": -0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3243,
          "after": 0.2681,
          "delta": -0.0562,
          "percent_delta": -0.1733,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4009,
          "after": 0.3978,
          "delta": -0.0031,
          "percent_delta": -0.0077,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2566,
          "after": 0.2546,
          "delta": -0.002,
          "percent_delta": -0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4455,
          "after": 0.3353,
          "delta": -0.1102,
          "percent_delta": -0.2474,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6163,
          "after": 0.6186,
          "delta": 0.0023,
          "percent_delta": 0.0037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4455,
          "after": 0.3353,
          "delta": -0.1102,
          "percent_delta": -0.2474,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.78), rates preserved: AVG=0.177 HR/AB=0.034",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.092,
          "after": 0.0,
          "delta": -0.092,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0325,
          "after": 0.0,
          "delta": -0.0325,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.784,
          "after": 3.0,
          "delta": 0.216,
          "percent_delta": 0.0776,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3454,
          "after": 0.0,
          "delta": -0.3454,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.4935,
          "after": 1.0,
          "delta": 0.5065,
          "percent_delta": 1.0263,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.084,
          "after": 0.0,
          "delta": -0.084,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0943,
          "after": 0.0,
          "delta": -0.0943,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2546,
          "after": 0.0,
          "delta": -0.2546,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6186,
          "after": 1.0,
          "delta": 0.3814,
          "percent_delta": 0.6166,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 3,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.4935,
          "after": 1.0,
          "delta": 0.5065,
          "percent_delta": 1.0263,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3454,
          "after": 0.0,
          "delta": -0.3454,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.000)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9429,
        "bvp": 0.0571
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3978,
          "after": 0.0,
          "delta": -0.3978,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3978,
          "after": 0.0,
          "delta": -0.3978,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1773,
          "after": 0.333,
          "delta": 0.1557,
          "percent_delta": 0.8782,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2681,
          "after": 0.333,
          "delta": 0.0649,
          "percent_delta": 0.2421,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3353,
          "after": 0.333,
          "delta": -0.0023,
          "percent_delta": -0.0069,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1773,
          "after": 0.333,
          "delta": 0.1557,
          "percent_delta": 0.8782,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 5.0,
          "delta": 2.0,
          "percent_delta": 0.6667,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 5.0,
          "delta": 2.0,
          "percent_delta": 0.6667,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.1773,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2681,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3353,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1773,
          "delta": -0.1557,
          "percent_delta": -0.4677,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2681,
          "delta": -0.0649,
          "percent_delta": -0.195,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3353,
          "delta": 0.0023,
          "percent_delta": 0.0068,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1773,
          "delta": -0.1557,
          "percent_delta": -0.4677,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.104,
        "after": 0.0,
        "delta": -0.104,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.03,
        "after": 0.0,
        "delta": -0.03,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.731,
        "after": 5.0,
        "delta": 2.269,
        "percent_delta": 0.8308,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.251,
        "after": 0.1773,
        "delta": -0.0737,
        "percent_delta": -0.2936,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.403,
        "after": 0.0,
        "delta": -0.403,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.31,
        "after": 0.0,
        "delta": -0.31,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.06,
        "after": 0.0,
        "delta": -0.06,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.311,
        "after": 0.2681,
        "delta": -0.0429,
        "percent_delta": -0.1379,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.403,
        "after": 0.0,
        "delta": -0.403,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.18,
        "after": 0.0,
        "delta": -0.18,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.431,
        "after": 0.3353,
        "delta": -0.0957,
        "percent_delta": -0.222,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.642,
        "after": 2.0,
        "delta": 1.358,
        "percent_delta": 2.1153,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 2,
      "deboosted_metrics": 9,
      "better_metrics": 1,
      "worse_metrics": 10,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 2.731,
        "after": 5.0,
        "delta": 2.269,
        "percent_delta": 0.8308,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_BB",
        "before": 0.403,
        "after": 0.0,
        "delta": -0.403,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.104-
predicted_3B0.030-
predicted_AB2.731-
predicted_AVG0.251-
predicted_BB0.403-
predicted_H0.310-
predicted_HR0.060-
predicted_OBP0.311-
predicted_R0.403-
predicted_RBI0.180-
predicted_SLG0.431-
predicted_SO0.642-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.092-0.012
predicted_3B0.0330.003
predicted_AB2.7840.053
predicted_AVG0.2570.006
predicted_BB0.347-0.056
predicted_H0.4960.186
predicted_HBP0.084-
predicted_HR0.0940.034
predicted_OBP0.3240.013
predicted_R0.401-0.002
predicted_RBI0.2570.077
predicted_SLG0.4460.015
predicted_SO0.616-0.026
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0920.000
predicted_3B0.0330.000
predicted_AB2.7840.000
predicted_AVG0.177-0.080
predicted_BB0.345-0.001
predicted_H0.493-0.002
predicted_HBP0.0840.000
predicted_HR0.094-0.000
predicted_OBP0.268-0.056
predicted_R0.398-0.003
predicted_RBI0.255-0.002
predicted_SLG0.335-0.110
predicted_SO0.6190.002
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.78), rates preserved: AVG=0.177 HR/AB=0.034

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.000)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.092
predicted_3B0.000-0.033
predicted_AB3.0000.216
predicted_AVG0.3330.156
predicted_BB0.000-0.345
predicted_H1.0000.506
predicted_HR0.000-0.094
predicted_OBP0.3330.065
predicted_R0.000-0.398
predicted_RBI0.000-0.255
predicted_SLG0.333-0.002
predicted_SO1.0000.381
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB5.0002.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 67
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-13.0005.0000.0000.0001.0002.0002.0000.0002.0000.38460.42860.61540.38460.07690.15380.00000.1538
last_100.2010-28.0006.0000.0001.0001.0002.0003.0001.0004.0000.21430.26670.39290.21430.03570.07140.03570.1429
season0.6067-183.00045.0007.0002.0009.00025.00027.00027.00043.0000.24590.34720.45360.24590.04920.13660.14750.2350
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0750
predicted_3B0.0360
predicted_AB2.8590
predicted_AVG0.2653
predicted_BB0.2670
predicted_H0.7580
predicted_HBP0.0840
predicted_HR0.1430
predicted_OBP0.3432
predicted_R0.3980
predicted_RBI0.3650
predicted_SLG0.4660
predicted_SO0.5800
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.10400.07500.0920model_form_blend
predicted_3B0.03000.03600.0325model_form_blend
predicted_AB2.73102.85902.7840model_form_blend
predicted_AVG0.25100.26530.2569model_form_blend
predicted_BB0.40300.26700.3467model_form_blend
predicted_H0.31000.75800.4956model_form_blend
predicted_HBP-0.08400.0840form_only
predicted_HR0.06000.14300.0944model_form_blend
predicted_OBP0.31100.34320.3243model_form_blend
predicted_R0.40300.39800.4009model_form_blend
predicted_RBI0.18000.36500.2566model_form_blend
predicted_SLG0.43100.46600.4455model_form_blend
predicted_SO0.64200.58000.6163model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date174
Season rows before report date174
Report year2026
Profile rows used67
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB5
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO2
SF0
HBP0
season_avg0.246

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260616_MIN@TEX
game_typefull
mlbID592626
playerID592626
playerNameJoc Pederson
posDH
startedTrue
startingPositionDH
teamTEX
teamID28
game_date2026-06-16
sl_k_percent19.7
sl_bb_percent12.8
sl_woba0.351
sl_xwoba0.353
sl_xba0.257
sl_xslg0.428
sl_sweet_spot_percent32.9
sl_barrel_batted_rate9.8
sl_hard_hit_percent47.6
sl_exit_velocity_avg91.6
sl_launch_angle_avg14.9
sl_whiff_percent29.1
sl_swing_percent44.5
Josh Jung (673962) · BATTER · 3B · Team TEX
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 224
All-history rows before 20260618: 224
System season_avg: 0.2990
Data season_avg (2026 season-to-date): 0.3023
Diff (system - data): -0.0033
System opponent_avg: 0.0000

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2350.0000.000Hitting_2B0.2860.000-0.2860.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.2404.0004.000Hitting_AB3.8843.0000.1161.000
predicted_AVG0.2430.5000.250Hitting_AVG0.3020.0000.1980.500
predicted_BB0.3090.0000.000Hitting_BB0.3260.000-0.3260.000
predicted_CS-0.0000.000BaseRunning_CS0.0180.000-0.0180.000
predicted_H1.0302.0001.000Hitting_H1.1740.0000.8262.000
predicted_HR0.1100.0000.000Hitting_HR0.1250.000-0.1250.000
predicted_OBP0.3270.5000.250Hitting_OBP0.3610.0000.1390.500
predicted_R0.4710.0000.000Hitting_R0.4820.000-0.4820.000
predicted_RBI0.3900.0000.000Hitting_RBI0.4460.000-0.4460.000
predicted_SLG0.3870.5000.250Hitting_SLG0.4720.0000.0280.500
predicted_SO0.6760.0001.000Hitting_SO0.6340.000-0.6340.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics1
Deboosted Metrics9
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_H: 1.0300 -> 2.0000 (boost 0.9700, better)
Biggest Deboostpredicted_SO: 0.6760 -> 0.0000 (deboost -0.6760, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend31212predicted_AVG: 0.2430 -> 0.2494 (boost 0.0064, better)predicted_AB: 4.2400 -> 4.0579 (deboost -0.1821, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3297 -> 0.3031 (deboost -0.0266, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71607predicted_SO: 0.6886 -> 1.0000 (boost 0.3114, worse)predicted_RBI: 0.3576 -> 0.0000 (deboost -0.3576, worse)AB rounded to 4 (raw=4.24), rates preserved: AVG=0.237 HR/AB=0.024
5consistency_constraints10101-predicted_R: 0.4414 -> 0.0000 (deboost -0.4414, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context20202-predicted_SLG: 0.3724 -> 0.2500 (deboost -0.1224, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21120predicted_H: 1.0000 -> 2.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final22020predicted_SLG: 0.2500 -> 0.3724 (boost 0.1224, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "673962",
  "player_name": "Josh Jung",
  "position": "3B",
  "team": "TEX",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.235,
        "predicted_3B": 0.0,
        "predicted_AB": 4.24,
        "predicted_AVG": 0.243,
        "predicted_BB": 0.309,
        "predicted_H": 1.03,
        "predicted_HR": 0.11,
        "predicted_OBP": 0.327,
        "predicted_R": 0.471,
        "predicted_RBI": 0.39,
        "predicted_SLG": 0.387,
        "predicted_SO": 0.676
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1966,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.0579,
        "predicted_AVG": 0.2494,
        "predicted_BB": 0.3229,
        "predicted_H": 1.0101,
        "predicted_HBP": 0.091,
        "predicted_HR": 0.1028,
        "predicted_OBP": 0.3297,
        "predicted_R": 0.4448,
        "predicted_RBI": 0.3604,
        "predicted_SLG": 0.3799,
        "predicted_SO": 0.6861
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.235,
          "after": 0.1966,
          "delta": -0.0384,
          "percent_delta": -0.1634,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.24,
          "after": 4.0579,
          "delta": -0.1821,
          "percent_delta": -0.0429,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.243,
          "after": 0.2494,
          "delta": 0.0064,
          "percent_delta": 0.0263,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.309,
          "after": 0.3229,
          "delta": 0.0139,
          "percent_delta": 0.045,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.03,
          "after": 1.0101,
          "delta": -0.0199,
          "percent_delta": -0.0193,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.11,
          "after": 0.1028,
          "delta": -0.0072,
          "percent_delta": -0.0655,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.327,
          "after": 0.3297,
          "delta": 0.0027,
          "percent_delta": 0.0083,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.471,
          "after": 0.4448,
          "delta": -0.0262,
          "percent_delta": -0.0556,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.39,
          "after": 0.3604,
          "delta": -0.0296,
          "percent_delta": -0.0759,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.387,
          "after": 0.3799,
          "delta": -0.0071,
          "percent_delta": -0.0183,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.676,
          "after": 0.6861,
          "delta": 0.0101,
          "percent_delta": 0.0149,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.243,
          "after": 0.2494,
          "delta": 0.0064,
          "percent_delta": 0.0263,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.24,
          "after": 4.0579,
          "delta": -0.1821,
          "percent_delta": -0.0429,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 68
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1966,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.0579,
        "predicted_AVG": 0.2479,
        "predicted_BB": 0.3217,
        "predicted_H": 1.0058,
        "predicted_HBP": 0.091,
        "predicted_HR": 0.1027,
        "predicted_OBP": 0.3031,
        "predicted_R": 0.4414,
        "predicted_RBI": 0.3576,
        "predicted_SLG": 0.3724,
        "predicted_SO": 0.6886
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1966,
          "after": 0.1966,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0579,
          "after": 4.0579,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2494,
          "after": 0.2479,
          "delta": -0.0015,
          "percent_delta": -0.006,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3229,
          "after": 0.3217,
          "delta": -0.0012,
          "percent_delta": -0.0037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0101,
          "after": 1.0058,
          "delta": -0.0043,
          "percent_delta": -0.0043,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.091,
          "after": 0.091,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1028,
          "after": 0.1027,
          "delta": -0.0001,
          "percent_delta": -0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3297,
          "after": 0.3031,
          "delta": -0.0266,
          "percent_delta": -0.0807,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4448,
          "after": 0.4414,
          "delta": -0.0034,
          "percent_delta": -0.0076,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3604,
          "after": 0.3576,
          "delta": -0.0028,
          "percent_delta": -0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3799,
          "after": 0.3724,
          "delta": -0.0075,
          "percent_delta": -0.0197,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6861,
          "after": 0.6886,
          "delta": 0.0025,
          "percent_delta": 0.0036,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3297,
          "after": 0.3031,
          "delta": -0.0266,
          "percent_delta": -0.0807,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.24), rates preserved: AVG=0.237 HR/AB=0.024",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1966,
          "after": 0.0,
          "delta": -0.1966,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0579,
          "after": 4.0,
          "delta": -0.0579,
          "percent_delta": -0.0143,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3217,
          "after": 0.0,
          "delta": -0.3217,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0058,
          "after": 1.0,
          "delta": -0.0058,
          "percent_delta": -0.0058,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.091,
          "after": 0.0,
          "delta": -0.091,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1027,
          "after": 0.0,
          "delta": -0.1027,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3576,
          "after": 0.0,
          "delta": -0.3576,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6886,
          "after": 1.0,
          "delta": 0.3114,
          "percent_delta": 0.4522,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 0,
        "worse_metrics": 7,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.6886,
          "after": 1.0,
          "delta": 0.3114,
          "percent_delta": 0.4522,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3576,
          "after": 0.0,
          "delta": -0.3576,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4414,
          "after": 0.0,
          "delta": -0.4414,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4414,
          "after": 0.0,
          "delta": -0.4414,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2479,
          "after": 0.25,
          "delta": 0.0021,
          "percent_delta": 0.0085,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3031,
          "after": 0.25,
          "delta": -0.0531,
          "percent_delta": -0.1752,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3724,
          "after": 0.25,
          "delta": -0.1224,
          "percent_delta": -0.3287,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3724,
          "after": 0.25,
          "delta": -0.1224,
          "percent_delta": -0.3287,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2479,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3031,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3724,
        "predicted_SO": 0.0,
        "predicted_TB": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2479,
          "delta": -0.0021,
          "percent_delta": -0.0086,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3031,
          "delta": 0.0531,
          "percent_delta": 0.2124,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3724,
          "delta": 0.1224,
          "percent_delta": 0.4897,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3724,
          "delta": 0.1224,
          "percent_delta": 0.4897,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.235,
        "after": 0.0,
        "delta": -0.235,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.24,
        "after": 4.0,
        "delta": -0.24,
        "percent_delta": -0.0566,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.243,
        "after": 0.2479,
        "delta": 0.0049,
        "percent_delta": 0.0202,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.309,
        "after": 0.0,
        "delta": -0.309,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.03,
        "after": 2.0,
        "delta": 0.97,
        "percent_delta": 0.9417,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.11,
        "after": 0.0,
        "delta": -0.11,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.327,
        "after": 0.3031,
        "delta": -0.0239,
        "percent_delta": -0.0731,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.471,
        "after": 0.0,
        "delta": -0.471,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.39,
        "after": 0.0,
        "delta": -0.39,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.387,
        "after": 0.3724,
        "delta": -0.0146,
        "percent_delta": -0.0377,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.676,
        "after": 0.0,
        "delta": -0.676,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 1,
      "deboosted_metrics": 9,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 1.03,
        "after": 2.0,
        "delta": 0.97,
        "percent_delta": 0.9417,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.676,
        "after": 0.0,
        "delta": -0.676,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.235-
predicted_3B0.000-
predicted_AB4.240-
predicted_AVG0.243-
predicted_BB0.309-
predicted_H1.030-
predicted_HR0.110-
predicted_OBP0.327-
predicted_R0.471-
predicted_RBI0.390-
predicted_SLG0.387-
predicted_SO0.676-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.197-0.038
predicted_3B0.0000.000
predicted_AB4.058-0.182
predicted_AVG0.2490.006
predicted_BB0.3230.014
predicted_H1.010-0.020
predicted_HBP0.091-
predicted_HR0.103-0.007
predicted_OBP0.3300.003
predicted_R0.445-0.026
predicted_RBI0.360-0.030
predicted_SLG0.380-0.007
predicted_SO0.6860.010
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1970.000
predicted_3B0.0000.000
predicted_AB4.0580.000
predicted_AVG0.248-0.002
predicted_BB0.322-0.001
predicted_H1.006-0.004
predicted_HBP0.0910.000
predicted_HR0.103-0.000
predicted_OBP0.303-0.027
predicted_R0.441-0.003
predicted_RBI0.358-0.003
predicted_SLG0.372-0.008
predicted_SO0.6890.002
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.24), rates preserved: AVG=0.237 HR/AB=0.024

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.197
predicted_3B0.000-0.000
predicted_AB4.000-0.058
predicted_AVG0.2500.002
predicted_BB0.000-0.322
predicted_H1.000-0.006
predicted_HR0.000-0.103
predicted_OBP0.250-0.053
predicted_R0.000-0.441
predicted_RBI0.000-0.358
predicted_SLG0.250-0.122
predicted_SO1.0000.311
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 68
Reference playing time: 4.240
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0003.0000.0000.0000.0000.0001.0002.0003.0000.16670.28570.16670.16670.00000.00000.11110.1667
last_100.2010-39.0009.0000.0000.0001.0002.0004.0004.0008.0000.23080.31820.30770.23080.02560.05130.10260.2051
season0.6068-261.00078.00016.0000.0008.00030.00032.00021.00046.0000.29890.35760.45210.29890.03070.11490.08050.1762
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1440
predicted_3B0.0010
predicted_AB3.8090
predicted_AVG0.2581
predicted_BB0.3420
predicted_H0.9830
predicted_HBP0.0910
predicted_HR0.0930
predicted_OBP0.3333
predicted_R0.4090
predicted_RBI0.3200
predicted_SLG0.3703
predicted_SO0.7000
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.23500.14400.1966model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.24003.80904.0579model_form_blend
predicted_AVG0.24300.25810.2494model_form_blend
predicted_BB0.30900.34200.3229model_form_blend
predicted_H1.03000.98301.0101model_form_blend
predicted_HBP-0.09100.0910form_only
predicted_HR0.11000.09300.1028model_form_blend
predicted_OBP0.32700.33330.3297model_form_blend
predicted_R0.47100.40900.4448model_form_blend
predicted_RBI0.39000.32000.3604model_form_blend
predicted_SLG0.38700.37030.3799model_form_blend
predicted_SO0.67600.70000.6861model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date224
Season rows before report date224
Report year2026
Profile rows used68
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H2
2B0
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.299

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260616_MIN@TEX
game_typefull
mlbID673962
playerID673962
playerNameJosh Jung
pos3B
startedTrue
startingPosition3B
teamTEX
teamID28
game_date2026-06-16
sl_k_percent16.0
sl_bb_percent7.3
sl_woba0.356
sl_xwoba0.352
sl_xba0.298
sl_xslg0.445
sl_sweet_spot_percent39.6
sl_barrel_batted_rate5.1
sl_hard_hit_percent45.2
sl_exit_velocity_avg89.7
sl_launch_angle_avg11.7
sl_whiff_percent18.4
sl_swing_percent47.2
Brandon Nimmo (607043) · BATTER · RF · Team TEX
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 252
All-history rows before 20260618: 252
System season_avg: 0.2570
Data season_avg (2026 season-to-date): 0.2623
Diff (system - data): -0.0053
System opponent_avg: 0.2860

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2250.0000.000Hitting_2B0.1941.000-0.194-1.000
predicted_3B0.0280.0000.000Hitting_3B0.0360.000-0.0360.000
predicted_AB4.0604.0004.000Hitting_AB3.9483.0000.0521.000
predicted_AVG0.2440.2500.250Hitting_AVG0.2620.667-0.012-0.417
predicted_BB0.3380.0000.000Hitting_BB0.3890.000-0.3890.000
predicted_CS-0.0000.000BaseRunning_CS0.0120.000-0.0120.000
predicted_H0.9901.0001.000Hitting_H1.0362.000-0.036-1.000
predicted_HR0.1100.0000.000Hitting_HR0.1150.000-0.1150.000
predicted_OBP0.3120.2500.250Hitting_OBP0.3430.667-0.093-0.417
predicted_R0.3940.0000.000Hitting_R0.4330.000-0.4330.000
predicted_RBI0.4300.0000.000Hitting_RBI0.3810.000-0.3810.000
predicted_SLG0.4250.2500.250Hitting_SLG0.4171.000-0.167-0.750
predicted_SO0.8870.0001.000Hitting_SO0.9130.000-0.9130.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics1
Deboosted Metrics9
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_AVG: 0.2440 -> 0.2498 (boost 0.0058, better)
Biggest Deboostpredicted_SO: 0.8870 -> 0.0000 (deboost -0.8870, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend32121predicted_2B: 0.2250 -> 0.2856 (boost 0.0606, better)predicted_AB: 4.0600 -> 3.9134 (deboost -0.1466, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_SLG: 0.4231 -> 0.4038 (deboost -0.0193, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62415predicted_SO: 0.8766 -> 1.0000 (boost 0.1234, worse)predicted_RBI: 0.3998 -> 0.0000 (deboost -0.3998, worse)AB rounded to 4 (raw=4.06), rates preserved: AVG=0.241 HR/AB=0.022
5consistency_constraints10101-predicted_R: 0.3472 -> 0.0000 (deboost -0.3472, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context20202-predicted_SLG: 0.4038 -> 0.2500 (deboost -0.1538, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference10110-predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final22020predicted_SLG: 0.2500 -> 0.4038 (boost 0.1538, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "607043",
  "player_name": "Brandon Nimmo",
  "position": "RF",
  "team": "TEX",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.225,
        "predicted_3B": 0.028,
        "predicted_AB": 4.06,
        "predicted_AVG": 0.244,
        "predicted_BB": 0.338,
        "predicted_H": 0.99,
        "predicted_HR": 0.11,
        "predicted_OBP": 0.312,
        "predicted_R": 0.394,
        "predicted_RBI": 0.43,
        "predicted_SLG": 0.425,
        "predicted_SO": 0.887
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2856,
        "predicted_3B": 0.0229,
        "predicted_AB": 3.9134,
        "predicted_AVG": 0.2514,
        "predicted_BB": 0.2973,
        "predicted_H": 0.9819,
        "predicted_HBP": 0.048,
        "predicted_HR": 0.0905,
        "predicted_OBP": 0.3124,
        "predicted_R": 0.3499,
        "predicted_RBI": 0.4029,
        "predicted_SLG": 0.4231,
        "predicted_SO": 0.8734
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.225,
          "after": 0.2856,
          "delta": 0.0606,
          "percent_delta": 0.2693,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.028,
          "after": 0.0229,
          "delta": -0.0051,
          "percent_delta": -0.1821,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.06,
          "after": 3.9134,
          "delta": -0.1466,
          "percent_delta": -0.0361,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.244,
          "after": 0.2514,
          "delta": 0.0074,
          "percent_delta": 0.0303,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.338,
          "after": 0.2973,
          "delta": -0.0407,
          "percent_delta": -0.1204,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.99,
          "after": 0.9819,
          "delta": -0.0081,
          "percent_delta": -0.0082,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.11,
          "after": 0.0905,
          "delta": -0.0195,
          "percent_delta": -0.1773,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.312,
          "after": 0.3124,
          "delta": 0.0004,
          "percent_delta": 0.0013,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.394,
          "after": 0.3499,
          "delta": -0.0441,
          "percent_delta": -0.1119,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.43,
          "after": 0.4029,
          "delta": -0.0271,
          "percent_delta": -0.063,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.425,
          "after": 0.4231,
          "delta": -0.0019,
          "percent_delta": -0.0045,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.887,
          "after": 0.8734,
          "delta": -0.0136,
          "percent_delta": -0.0153,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.225,
          "after": 0.2856,
          "delta": 0.0606,
          "percent_delta": 0.2693,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.06,
          "after": 3.9134,
          "delta": -0.1466,
          "percent_delta": -0.0361,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 71
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2856,
        "predicted_3B": 0.0229,
        "predicted_AB": 3.9134,
        "predicted_AVG": 0.2498,
        "predicted_BB": 0.2962,
        "predicted_H": 0.9777,
        "predicted_HBP": 0.048,
        "predicted_HR": 0.0904,
        "predicted_OBP": 0.3026,
        "predicted_R": 0.3472,
        "predicted_RBI": 0.3998,
        "predicted_SLG": 0.4038,
        "predicted_SO": 0.8766
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2856,
          "after": 0.2856,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0229,
          "after": 0.0229,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9134,
          "after": 3.9134,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2514,
          "after": 0.2498,
          "delta": -0.0016,
          "percent_delta": -0.0064,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2973,
          "after": 0.2962,
          "delta": -0.0011,
          "percent_delta": -0.0037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9819,
          "after": 0.9777,
          "delta": -0.0042,
          "percent_delta": -0.0043,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.048,
          "after": 0.048,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0905,
          "after": 0.0904,
          "delta": -0.0001,
          "percent_delta": -0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3124,
          "after": 0.3026,
          "delta": -0.0098,
          "percent_delta": -0.0314,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3499,
          "after": 0.3472,
          "delta": -0.0027,
          "percent_delta": -0.0077,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4029,
          "after": 0.3998,
          "delta": -0.0031,
          "percent_delta": -0.0077,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4231,
          "after": 0.4038,
          "delta": -0.0193,
          "percent_delta": -0.0456,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8734,
          "after": 0.8766,
          "delta": 0.0032,
          "percent_delta": 0.0037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4231,
          "after": 0.4038,
          "delta": -0.0193,
          "percent_delta": -0.0456,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.06), rates preserved: AVG=0.241 HR/AB=0.022",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2856,
          "after": 0.0,
          "delta": -0.2856,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0229,
          "after": 0.0,
          "delta": -0.0229,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9134,
          "after": 4.0,
          "delta": 0.0866,
          "percent_delta": 0.0221,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2962,
          "after": 0.0,
          "delta": -0.2962,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9777,
          "after": 1.0,
          "delta": 0.0223,
          "percent_delta": 0.0228,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.048,
          "after": 0.0,
          "delta": -0.048,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0904,
          "after": 0.0,
          "delta": -0.0904,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3998,
          "after": 0.0,
          "delta": -0.3998,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8766,
          "after": 1.0,
          "delta": 0.1234,
          "percent_delta": 0.1408,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.8766,
          "after": 1.0,
          "delta": 0.1234,
          "percent_delta": 0.1408,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3998,
          "after": 0.0,
          "delta": -0.3998,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3472,
          "after": 0.0,
          "delta": -0.3472,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3472,
          "after": 0.0,
          "delta": -0.3472,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2498,
          "after": 0.25,
          "delta": 0.0002,
          "percent_delta": 0.0008,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3026,
          "after": 0.25,
          "delta": -0.0526,
          "percent_delta": -0.1738,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4038,
          "after": 0.25,
          "delta": -0.1538,
          "percent_delta": -0.3809,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4038,
          "after": 0.25,
          "delta": -0.1538,
          "percent_delta": -0.3809,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2498,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3026,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_RF": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4038,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2498,
          "delta": -0.0002,
          "percent_delta": -0.0007,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3026,
          "delta": 0.0526,
          "percent_delta": 0.2105,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4038,
          "delta": 0.1538,
          "percent_delta": 0.6152,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4038,
          "delta": 0.1538,
          "percent_delta": 0.6152,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.225,
        "after": 0.0,
        "delta": -0.225,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.028,
        "after": 0.0,
        "delta": -0.028,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.06,
        "after": 4.0,
        "delta": -0.06,
        "percent_delta": -0.0148,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.244,
        "after": 0.2498,
        "delta": 0.0058,
        "percent_delta": 0.0238,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.338,
        "after": 0.0,
        "delta": -0.338,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.99,
        "after": 1.0,
        "delta": 0.01,
        "percent_delta": 0.0101,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.11,
        "after": 0.0,
        "delta": -0.11,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.312,
        "after": 0.3026,
        "delta": -0.0094,
        "percent_delta": -0.0301,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.394,
        "after": 0.0,
        "delta": -0.394,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.43,
        "after": 0.0,
        "delta": -0.43,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.425,
        "after": 0.4038,
        "delta": -0.0212,
        "percent_delta": -0.0499,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.887,
        "after": 0.0,
        "delta": -0.887,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 1,
      "deboosted_metrics": 9,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_AVG",
        "before": 0.244,
        "after": 0.2498,
        "delta": 0.0058,
        "percent_delta": 0.0238,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.887,
        "after": 0.0,
        "delta": -0.887,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.225-
predicted_3B0.028-
predicted_AB4.060-
predicted_AVG0.244-
predicted_BB0.338-
predicted_H0.990-
predicted_HR0.110-
predicted_OBP0.312-
predicted_R0.394-
predicted_RBI0.430-
predicted_SLG0.425-
predicted_SO0.887-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2860.061
predicted_3B0.023-0.005
predicted_AB3.913-0.147
predicted_AVG0.2510.007
predicted_BB0.297-0.041
predicted_H0.982-0.008
predicted_HBP0.048-
predicted_HR0.090-0.020
predicted_OBP0.3120.000
predicted_R0.350-0.044
predicted_RBI0.403-0.027
predicted_SLG0.423-0.002
predicted_SO0.873-0.014
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2860.000
predicted_3B0.0230.000
predicted_AB3.9130.000
predicted_AVG0.250-0.002
predicted_BB0.296-0.001
predicted_H0.978-0.004
predicted_HBP0.0480.000
predicted_HR0.090-0.000
predicted_OBP0.303-0.010
predicted_R0.347-0.003
predicted_RBI0.400-0.003
predicted_SLG0.404-0.019
predicted_SO0.8770.003
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.06), rates preserved: AVG=0.241 HR/AB=0.022

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.286
predicted_3B0.000-0.023
predicted_AB4.0000.087
predicted_AVG0.2500.000
predicted_BB0.000-0.296
predicted_H1.0000.022
predicted_HR0.000-0.090
predicted_OBP0.250-0.053
predicted_R0.000-0.347
predicted_RBI0.000-0.400
predicted_SLG0.250-0.154
predicted_SO1.0000.123
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 71
Reference playing time: 4.060
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0004.0003.0000.0000.0002.0000.0000.0005.0000.23530.23530.41180.23530.00000.11770.00000.2941
last_100.2010-36.00011.0006.0000.0000.0003.0002.0002.0006.0000.30560.34210.47220.30560.00000.08330.05560.1667
season0.6071-272.00070.00016.0002.0007.00025.00028.00024.00063.0000.25740.32890.40810.25740.02570.09190.08820.2316
Weighted Prediction From Real Data
MetricValue
predicted_2B0.3680
predicted_3B0.0160
predicted_AB3.7140
predicted_AVG0.2615
predicted_BB0.2420
predicted_H0.9710
predicted_HBP0.0480
predicted_HR0.0640
predicted_OBP0.3129
predicted_R0.2900
predicted_RBI0.3660
predicted_SLG0.4206
predicted_SO0.8550
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.22500.36800.2856model_form_blend
predicted_3B0.02800.01600.0229model_form_blend
predicted_AB4.06003.71403.9134model_form_blend
predicted_AVG0.24400.26150.2514model_form_blend
predicted_BB0.33800.24200.2973model_form_blend
predicted_H0.99000.97100.9819model_form_blend
predicted_HBP-0.04800.0480form_only
predicted_HR0.11000.06400.0905model_form_blend
predicted_OBP0.31200.31290.3124model_form_blend
predicted_R0.39400.29000.3499model_form_blend
predicted_RBI0.43000.36600.4029model_form_blend
predicted_SLG0.42500.42060.4231model_form_blend
predicted_SO0.88700.85500.8734model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date252
Season rows before report date252
Report year2026
Profile rows used71
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.257

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E2
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB3
Hitting_AVG0.667
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB3
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedRF
gameID20260616_MIN@TEX
game_typefull
mlbID607043
playerID607043
playerNameBrandon Nimmo
posRF
startedTrue
startingPositionRF
teamTEX
teamID28
game_date2026-06-16
sl_k_percent20.7
sl_bb_percent7.9
sl_woba0.325
sl_xwoba0.372
sl_xba0.285
sl_xslg0.503
sl_sweet_spot_percent34.6
sl_barrel_batted_rate10.9
sl_hard_hit_percent52.6
sl_exit_velocity_avg92.2
sl_launch_angle_avg11.2
sl_whiff_percent22.8
sl_swing_percent49.3
Wyatt Langford (694671) · BATTER · LF · Team TEX
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 95
All-history rows before 20260618: 95
System season_avg: 0.2360
Data season_avg (2026 season-to-date): 0.2430
Diff (system - data): -0.0070
System opponent_avg: 0.1430

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1610.0000.000Hitting_2B0.1580.000-0.1580.000
predicted_3B0.0650.0000.000Hitting_3B0.0950.000-0.0950.000
predicted_AB4.3203.0004.000Hitting_AB4.1583.000-1.1580.000
predicted_AVG0.2360.0000.250Hitting_AVG0.2430.333-0.243-0.333
predicted_BB0.2261.0000.000Hitting_BB0.2000.0000.8001.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H1.0200.0001.000Hitting_H1.0111.000-1.011-1.000
predicted_HR0.1400.0000.000Hitting_HR0.0530.000-0.0530.000
predicted_OBP0.3050.2500.250Hitting_OBP0.2780.333-0.028-0.083
predicted_R0.5160.0001.000Hitting_R0.5051.000-0.505-1.000
predicted_RBI0.4300.0000.000Hitting_RBI0.2210.000-0.2210.000
predicted_SLG0.4080.0000.250Hitting_SLG0.3650.333-0.365-0.333
predicted_SO0.9352.0001.000Hitting_SO0.9681.0001.0321.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics2
Worse Metrics9
Biggest Boostpredicted_SO: 0.9350 -> 2.0000 (boost 1.0650, worse)
Biggest Deboostpredicted_AB: 4.3200 -> 3.0000 (deboost -1.3200, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend21111predicted_AVG: 0.2360 -> 0.2440 (boost 0.0080, better)predicted_AB: 4.3200 -> 4.1710 (deboost -0.1490, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3039 -> 0.2827 (deboost -0.0212, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71607predicted_SO: 0.9087 -> 1.0000 (boost 0.0913, worse)predicted_RBI: 0.4086 -> 0.0000 (deboost -0.4086, worse)AB rounded to 4 (raw=4.32), rates preserved: AVG=0.234 HR/AB=0.032
5consistency_constraints11010predicted_R: 0.5215 -> 1.0000 (boost 0.4785, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2425 -> 0.2500 (boost 0.0075, better)predicted_SLG: 0.4064 -> 0.2500 (deboost -0.1564, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference52314predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.2500 -> 0.4064 (boost 0.1564, better)predicted_AVG: 0.2500 -> 0.2425 (deboost -0.0075, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "694671",
  "player_name": "Wyatt Langford",
  "position": "LF",
  "team": "TEX",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.161,
        "predicted_3B": 0.065,
        "predicted_AB": 4.32,
        "predicted_AVG": 0.236,
        "predicted_BB": 0.226,
        "predicted_H": 1.02,
        "predicted_HR": 0.14,
        "predicted_OBP": 0.305,
        "predicted_R": 0.516,
        "predicted_RBI": 0.43,
        "predicted_SLG": 0.408,
        "predicted_SO": 0.935
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1618,
        "predicted_3B": 0.0528,
        "predicted_AB": 4.171,
        "predicted_AVG": 0.244,
        "predicted_BB": 0.2343,
        "predicted_H": 1.016,
        "predicted_HBP": 0.007,
        "predicted_HR": 0.1388,
        "predicted_OBP": 0.3039,
        "predicted_R": 0.5255,
        "predicted_RBI": 0.4118,
        "predicted_SLG": 0.4124,
        "predicted_SO": 0.9054
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.161,
          "after": 0.1618,
          "delta": 0.0008,
          "percent_delta": 0.005,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.065,
          "after": 0.0528,
          "delta": -0.0122,
          "percent_delta": -0.1877,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.32,
          "after": 4.171,
          "delta": -0.149,
          "percent_delta": -0.0345,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.236,
          "after": 0.244,
          "delta": 0.008,
          "percent_delta": 0.0339,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.226,
          "after": 0.2343,
          "delta": 0.0083,
          "percent_delta": 0.0367,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.02,
          "after": 1.016,
          "delta": -0.004,
          "percent_delta": -0.0039,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.14,
          "after": 0.1388,
          "delta": -0.0012,
          "percent_delta": -0.0086,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.305,
          "after": 0.3039,
          "delta": -0.0011,
          "percent_delta": -0.0036,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.516,
          "after": 0.5255,
          "delta": 0.0095,
          "percent_delta": 0.0184,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.43,
          "after": 0.4118,
          "delta": -0.0182,
          "percent_delta": -0.0423,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.408,
          "after": 0.4124,
          "delta": 0.0044,
          "percent_delta": 0.0108,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.935,
          "after": 0.9054,
          "delta": -0.0296,
          "percent_delta": -0.0317,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.236,
          "after": 0.244,
          "delta": 0.008,
          "percent_delta": 0.0339,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.32,
          "after": 4.171,
          "delta": -0.149,
          "percent_delta": -0.0345,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 31
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1618,
        "predicted_3B": 0.0528,
        "predicted_AB": 4.171,
        "predicted_AVG": 0.2425,
        "predicted_BB": 0.2334,
        "predicted_H": 1.0116,
        "predicted_HBP": 0.007,
        "predicted_HR": 0.1386,
        "predicted_OBP": 0.2827,
        "predicted_R": 0.5215,
        "predicted_RBI": 0.4086,
        "predicted_SLG": 0.4064,
        "predicted_SO": 0.9087
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1618,
          "after": 0.1618,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0528,
          "after": 0.0528,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.171,
          "after": 4.171,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.244,
          "after": 0.2425,
          "delta": -0.0015,
          "percent_delta": -0.0061,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2343,
          "after": 0.2334,
          "delta": -0.0009,
          "percent_delta": -0.0038,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.016,
          "after": 1.0116,
          "delta": -0.0044,
          "percent_delta": -0.0043,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.007,
          "after": 0.007,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1388,
          "after": 0.1386,
          "delta": -0.0002,
          "percent_delta": -0.0014,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3039,
          "after": 0.2827,
          "delta": -0.0212,
          "percent_delta": -0.0698,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5255,
          "after": 0.5215,
          "delta": -0.004,
          "percent_delta": -0.0076,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4118,
          "after": 0.4086,
          "delta": -0.0032,
          "percent_delta": -0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4124,
          "after": 0.4064,
          "delta": -0.006,
          "percent_delta": -0.0145,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9054,
          "after": 0.9087,
          "delta": 0.0033,
          "percent_delta": 0.0036,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3039,
          "after": 0.2827,
          "delta": -0.0212,
          "percent_delta": -0.0698,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.32), rates preserved: AVG=0.234 HR/AB=0.032",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1618,
          "after": 0.0,
          "delta": -0.1618,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0528,
          "after": 0.0,
          "delta": -0.0528,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AB",
          "before": 4.171,
          "after": 4.0,
          "delta": -0.171,
          "percent_delta": -0.041,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2334,
          "after": 0.0,
          "delta": -0.2334,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0116,
          "after": 1.0,
          "delta": -0.0116,
          "percent_delta": -0.0115,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.007,
          "after": 0.0,
          "delta": -0.007,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1386,
          "after": 0.0,
          "delta": -0.1386,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4086,
          "after": 0.0,
          "delta": -0.4086,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9087,
          "after": 1.0,
          "delta": 0.0913,
          "percent_delta": 0.1005,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 0,
        "worse_metrics": 7,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.9087,
          "after": 1.0,
          "delta": 0.0913,
          "percent_delta": 0.1005,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4086,
          "after": 0.0,
          "delta": -0.4086,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5215,
          "after": 1.0,
          "delta": 0.4785,
          "percent_delta": 0.9175,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5215,
          "after": 1.0,
          "delta": 0.4785,
          "percent_delta": 0.9175,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2425,
          "after": 0.25,
          "delta": 0.0075,
          "percent_delta": 0.0309,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2827,
          "after": 0.25,
          "delta": -0.0327,
          "percent_delta": -0.1157,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4064,
          "after": 0.25,
          "delta": -0.1564,
          "percent_delta": -0.3848,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2425,
          "after": 0.25,
          "delta": 0.0075,
          "percent_delta": 0.0309,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4064,
          "after": 0.25,
          "delta": -0.1564,
          "percent_delta": -0.3848,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 2,
        "deboosted_metrics": 3,
        "better_metrics": 1,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2425,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_LF": 0.0,
        "predicted_OBP": 0.2827,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4064,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2425,
          "delta": -0.0075,
          "percent_delta": -0.0298,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2827,
          "delta": 0.0327,
          "percent_delta": 0.1307,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4064,
          "delta": 0.1564,
          "percent_delta": 0.6255,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4064,
          "delta": 0.1564,
          "percent_delta": 0.6255,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2425,
          "delta": -0.0075,
          "percent_delta": -0.0298,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.161,
        "after": 0.0,
        "delta": -0.161,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.065,
        "after": 0.0,
        "delta": -0.065,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AB",
        "before": 4.32,
        "after": 3.0,
        "delta": -1.32,
        "percent_delta": -0.3056,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.236,
        "after": 0.2425,
        "delta": 0.0065,
        "percent_delta": 0.0275,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.226,
        "after": 1.0,
        "delta": 0.774,
        "percent_delta": 3.4248,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.02,
        "after": 0.0,
        "delta": -1.02,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.14,
        "after": 0.0,
        "delta": -0.14,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.305,
        "after": 0.2827,
        "delta": -0.0223,
        "percent_delta": -0.0731,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.516,
        "after": 0.0,
        "delta": -0.516,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.43,
        "after": 0.0,
        "delta": -0.43,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.408,
        "after": 0.4064,
        "delta": -0.0016,
        "percent_delta": -0.0039,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.935,
        "after": 2.0,
        "delta": 1.065,
        "percent_delta": 1.139,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 2,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.935,
        "after": 2.0,
        "delta": 1.065,
        "percent_delta": 1.139,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 4.32,
        "after": 3.0,
        "delta": -1.32,
        "percent_delta": -0.3056,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.161-
predicted_3B0.065-
predicted_AB4.320-
predicted_AVG0.236-
predicted_BB0.226-
predicted_H1.020-
predicted_HR0.140-
predicted_OBP0.305-
predicted_R0.516-
predicted_RBI0.430-
predicted_SLG0.408-
predicted_SO0.935-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1620.001
predicted_3B0.053-0.012
predicted_AB4.171-0.149
predicted_AVG0.2440.008
predicted_BB0.2340.008
predicted_H1.016-0.004
predicted_HBP0.007-
predicted_HR0.139-0.001
predicted_OBP0.304-0.001
predicted_R0.5250.009
predicted_RBI0.412-0.018
predicted_SLG0.4120.004
predicted_SO0.905-0.030
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1620.000
predicted_3B0.0530.000
predicted_AB4.1710.000
predicted_AVG0.242-0.002
predicted_BB0.233-0.001
predicted_H1.012-0.004
predicted_HBP0.0070.000
predicted_HR0.139-0.000
predicted_OBP0.283-0.021
predicted_R0.521-0.004
predicted_RBI0.409-0.003
predicted_SLG0.406-0.006
predicted_SO0.9090.003
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.32), rates preserved: AVG=0.234 HR/AB=0.032

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.162
predicted_3B0.000-0.053
predicted_AB4.000-0.171
predicted_AVG0.2500.008
predicted_BB0.000-0.233
predicted_H1.000-0.012
predicted_HR0.000-0.139
predicted_OBP0.250-0.033
predicted_R1.0000.479
predicted_RBI0.000-0.409
predicted_SLG0.250-0.156
predicted_SO1.0000.091
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 31
Reference playing time: 4.320
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.0007.0001.0000.0001.0003.0003.0001.0003.0000.35000.38100.55000.35000.05000.15000.05000.1500
last_100.2010-39.0009.0001.0000.0002.0004.0006.0003.0009.0000.23080.28570.41030.23080.05130.10260.07690.2308
season0.6031-123.00029.0005.0002.0003.0008.00016.0007.00029.0000.23580.27690.38210.23580.02440.06500.05690.2358
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1630
predicted_3B0.0340
predicted_AB3.9430
predicted_AVG0.2563
predicted_BB0.2470
predicted_H1.0100
predicted_HBP0.0070
predicted_HR0.1370
predicted_OBP0.3021
predicted_R0.5400
predicted_RBI0.3840
predicted_SLG0.4192
predicted_SO0.8600
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.16100.16300.1618model_form_blend
predicted_3B0.06500.03400.0528model_form_blend
predicted_AB4.32003.94304.1710model_form_blend
predicted_AVG0.23600.25630.2440model_form_blend
predicted_BB0.22600.24700.2343model_form_blend
predicted_H1.02001.01001.0160model_form_blend
predicted_HBP-0.00700.0070form_only
predicted_HR0.14000.13700.1388model_form_blend
predicted_OBP0.30500.30210.3039model_form_blend
predicted_R0.51600.54000.5255model_form_blend
predicted_RBI0.43000.38400.4118model_form_blend
predicted_SLG0.40800.41920.4124model_form_blend
predicted_SO0.93500.86000.9054model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date95
Season rows before report date95
Report year2026
Profile rows used31
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO2
SF0
HBP0
season_avg0.236

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB1
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedLF
gameID20260616_MIN@TEX
game_typefull
mlbID694671
playerID694671
playerNameWyatt Langford
posLF
startedTrue
startingPositionLF
teamTEX
teamID28
game_date2026-06-16
sl_k_percent22.3
sl_bb_percent5.4
sl_woba0.289
sl_xwoba0.282
sl_xba0.236
sl_xslg0.367
sl_sweet_spot_percent27.7
sl_barrel_batted_rate6.4
sl_hard_hit_percent35.1
sl_exit_velocity_avg88.8
sl_launch_angle_avg14.4
sl_whiff_percent23.3
sl_swing_percent47.3
Josh Smith (669701) · BATTER · 2B · Team TEX
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 112
All-history rows before 20260618: 112
System season_avg: 0.2160
Data season_avg (2026 season-to-date): 0.2320
Diff (system - data): -0.0160
System opponent_avg: 0.2000
System season_avg diverges from 2026 season-to-date by -0.0160. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0620.0000.000Hitting_2B0.0800.000-0.0800.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.0313.0003.000Hitting_AB3.2324.000-0.232-1.000
predicted_AVG0.2560.3330.333Hitting_AVG0.2320.2500.1010.083
predicted_BB0.4371.0000.000Hitting_BB0.5090.0000.4911.000
predicted_CS-0.0000.000BaseRunning_CS0.0450.000-0.0450.000
predicted_H0.7701.0001.000Hitting_H0.7501.0000.2500.000
predicted_HR0.0600.0000.000Hitting_HR0.0000.0000.0000.000
predicted_OBP0.3330.5000.333Hitting_OBP0.3410.2500.1590.250
predicted_R0.1880.0000.000Hitting_R0.1960.000-0.1960.000
predicted_RBI0.2700.0000.000Hitting_RBI0.2410.000-0.2410.000
predicted_SB-0.0000.000BaseRunning_SB0.0800.000-0.0800.000
predicted_SLG0.3290.3330.333Hitting_SLG0.2570.2500.0760.083
predicted_SO0.6251.0001.000Hitting_SO0.7230.0000.2771.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics4
Deboosted Metrics5
Better Metrics3
Worse Metrics6
Biggest Boostpredicted_BB: 0.4370 -> 1.0000 (boost 0.5630, better)
Biggest Deboostpredicted_RBI: 0.2700 -> 0.0000 (deboost -0.2700, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend10101-predicted_SLG: 0.3290 -> 0.3177 (deboost -0.0113, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot11010predicted_OBP: 0.3366 -> 0.3432 (boost 0.0066, better)-Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62415predicted_SO: 0.6215 -> 1.0000 (boost 0.3785, worse)predicted_BB: 0.4168 -> 0.0000 (deboost -0.4168, worse)AB rounded to 3 (raw=3.07), rates preserved: AVG=0.254 HR/AB=0.015
5consistency_constraints10101-predicted_R: 0.1892 -> 0.0000 (deboost -0.1892, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2541 -> 0.3330 (boost 0.0789, better)predicted_OBP: 0.3432 -> 0.3330 (deboost -0.0102, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference11010predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_OBP: 0.3330 -> 0.3432 (boost 0.0102, better)predicted_AVG: 0.3330 -> 0.2541 (deboost -0.0789, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "669701",
  "player_name": "Josh Smith",
  "position": "2B",
  "team": "TEX",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.062,
        "predicted_3B": 0.0,
        "predicted_AB": 3.031,
        "predicted_AVG": 0.256,
        "predicted_BB": 0.437,
        "predicted_H": 0.77,
        "predicted_HR": 0.06,
        "predicted_OBP": 0.333,
        "predicted_R": 0.188,
        "predicted_RBI": 0.27,
        "predicted_SLG": 0.329,
        "predicted_SO": 0.625
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0624,
        "predicted_3B": 0.0012,
        "predicted_AB": 3.0706,
        "predicted_AVG": 0.2563,
        "predicted_BB": 0.4183,
        "predicted_H": 0.7836,
        "predicted_HBP": 0.021,
        "predicted_HR": 0.0452,
        "predicted_OBP": 0.3366,
        "predicted_R": 0.1907,
        "predicted_RBI": 0.2342,
        "predicted_SLG": 0.3177,
        "predicted_SO": 0.6192
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.062,
          "after": 0.0624,
          "delta": 0.0004,
          "percent_delta": 0.0065,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0012,
          "delta": 0.0012,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.031,
          "after": 3.0706,
          "delta": 0.0396,
          "percent_delta": 0.0131,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.256,
          "after": 0.2563,
          "delta": 0.0003,
          "percent_delta": 0.0012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.437,
          "after": 0.4183,
          "delta": -0.0187,
          "percent_delta": -0.0428,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.77,
          "after": 0.7836,
          "delta": 0.0136,
          "percent_delta": 0.0177,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.06,
          "after": 0.0452,
          "delta": -0.0148,
          "percent_delta": -0.2467,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3366,
          "delta": 0.0036,
          "percent_delta": 0.0108,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.188,
          "after": 0.1907,
          "delta": 0.0027,
          "percent_delta": 0.0144,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.27,
          "after": 0.2342,
          "delta": -0.0358,
          "percent_delta": -0.1326,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.329,
          "after": 0.3177,
          "delta": -0.0113,
          "percent_delta": -0.0343,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.625,
          "after": 0.6192,
          "delta": -0.0058,
          "percent_delta": -0.0093,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.329,
          "after": 0.3177,
          "delta": -0.0113,
          "percent_delta": -0.0343,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 32
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0624,
        "predicted_3B": 0.0012,
        "predicted_AB": 3.0706,
        "predicted_AVG": 0.2541,
        "predicted_BB": 0.4168,
        "predicted_H": 0.7802,
        "predicted_HBP": 0.021,
        "predicted_HR": 0.0452,
        "predicted_OBP": 0.3432,
        "predicted_R": 0.1892,
        "predicted_RBI": 0.2324,
        "predicted_SLG": 0.3193,
        "predicted_SO": 0.6215
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0624,
          "after": 0.0624,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0012,
          "after": 0.0012,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0706,
          "after": 3.0706,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2563,
          "after": 0.2541,
          "delta": -0.0022,
          "percent_delta": -0.0086,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.4183,
          "after": 0.4168,
          "delta": -0.0015,
          "percent_delta": -0.0036,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7836,
          "after": 0.7802,
          "delta": -0.0034,
          "percent_delta": -0.0043,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.021,
          "after": 0.021,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0452,
          "after": 0.0452,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3366,
          "after": 0.3432,
          "delta": 0.0066,
          "percent_delta": 0.0196,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.1907,
          "after": 0.1892,
          "delta": -0.0015,
          "percent_delta": -0.0079,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2342,
          "after": 0.2324,
          "delta": -0.0018,
          "percent_delta": -0.0077,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3177,
          "after": 0.3193,
          "delta": 0.0016,
          "percent_delta": 0.005,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.6192,
          "after": 0.6215,
          "delta": 0.0023,
          "percent_delta": 0.0037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3366,
          "after": 0.3432,
          "delta": 0.0066,
          "percent_delta": 0.0196,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.07), rates preserved: AVG=0.254 HR/AB=0.015",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0624,
          "after": 0.0,
          "delta": -0.0624,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0012,
          "after": 0.0,
          "delta": -0.0012,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0706,
          "after": 3.0,
          "delta": -0.0706,
          "percent_delta": -0.023,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4168,
          "after": 0.0,
          "delta": -0.4168,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7802,
          "after": 1.0,
          "delta": 0.2198,
          "percent_delta": 0.2817,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.021,
          "after": 0.0,
          "delta": -0.021,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0452,
          "after": 0.0,
          "delta": -0.0452,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2324,
          "after": 0.0,
          "delta": -0.2324,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6215,
          "after": 1.0,
          "delta": 0.3785,
          "percent_delta": 0.609,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.6215,
          "after": 1.0,
          "delta": 0.3785,
          "percent_delta": 0.609,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.4168,
          "after": 0.0,
          "delta": -0.4168,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.1892,
          "after": 0.0,
          "delta": -0.1892,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.1892,
          "after": 0.0,
          "delta": -0.1892,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2541,
          "after": 0.333,
          "delta": 0.0789,
          "percent_delta": 0.3105,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3432,
          "after": 0.333,
          "delta": -0.0102,
          "percent_delta": -0.0297,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3193,
          "after": 0.333,
          "delta": 0.0137,
          "percent_delta": 0.0429,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2541,
          "after": 0.333,
          "delta": 0.0789,
          "percent_delta": 0.3105,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3432,
          "after": 0.333,
          "delta": -0.0102,
          "percent_delta": -0.0297,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2541,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3432,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3193,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2541,
          "delta": -0.0789,
          "percent_delta": -0.2369,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3432,
          "delta": 0.0102,
          "percent_delta": 0.0307,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3193,
          "delta": -0.0137,
          "percent_delta": -0.0411,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3432,
          "delta": 0.0102,
          "percent_delta": 0.0307,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2541,
          "delta": -0.0789,
          "percent_delta": -0.2369,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.062,
        "after": 0.0,
        "delta": -0.062,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.031,
        "after": 3.0,
        "delta": -0.031,
        "percent_delta": -0.0102,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AVG",
        "before": 0.256,
        "after": 0.2541,
        "delta": -0.0019,
        "percent_delta": -0.0074,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.437,
        "after": 1.0,
        "delta": 0.563,
        "percent_delta": 1.2883,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.77,
        "after": 1.0,
        "delta": 0.23,
        "percent_delta": 0.2987,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.06,
        "after": 0.0,
        "delta": -0.06,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.333,
        "after": 0.3432,
        "delta": 0.0102,
        "percent_delta": 0.0306,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.188,
        "after": 0.0,
        "delta": -0.188,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.27,
        "after": 0.0,
        "delta": -0.27,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.329,
        "after": 0.3193,
        "delta": -0.0097,
        "percent_delta": -0.0295,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.625,
        "after": 1.0,
        "delta": 0.375,
        "percent_delta": 0.6,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 4,
      "deboosted_metrics": 5,
      "better_metrics": 3,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.437,
        "after": 1.0,
        "delta": 0.563,
        "percent_delta": 1.2883,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.27,
        "after": 0.0,
        "delta": -0.27,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.062-
predicted_3B0.000-
predicted_AB3.031-
predicted_AVG0.256-
predicted_BB0.437-
predicted_H0.770-
predicted_HR0.060-
predicted_OBP0.333-
predicted_R0.188-
predicted_RBI0.270-
predicted_SLG0.329-
predicted_SO0.625-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.0620.000
predicted_3B0.0010.001
predicted_AB3.0710.040
predicted_AVG0.2560.000
predicted_BB0.418-0.019
predicted_H0.7840.014
predicted_HBP0.021-
predicted_HR0.045-0.015
predicted_OBP0.3370.004
predicted_R0.1910.003
predicted_RBI0.234-0.036
predicted_SLG0.318-0.011
predicted_SO0.619-0.006
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0620.000
predicted_3B0.0010.000
predicted_AB3.0710.000
predicted_AVG0.254-0.002
predicted_BB0.417-0.002
predicted_H0.780-0.003
predicted_HBP0.0210.000
predicted_HR0.0450.000
predicted_OBP0.3430.007
predicted_R0.189-0.002
predicted_RBI0.232-0.002
predicted_SLG0.3190.002
predicted_SO0.6220.002
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.07), rates preserved: AVG=0.254 HR/AB=0.015

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.062
predicted_3B0.000-0.001
predicted_AB3.000-0.071
predicted_AVG0.3330.079
predicted_BB0.000-0.417
predicted_H1.0000.220
predicted_HR0.000-0.045
predicted_OBP0.333-0.010
predicted_R0.000-0.189
predicted_RBI0.000-0.232
predicted_SLG0.3330.014
predicted_SO1.0000.378
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 32
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-14.0005.0000.0000.0000.0000.0000.0001.0002.0000.35710.40000.35710.35710.00000.00000.07140.1429
last_100.2010-28.0008.0000.0000.0000.0000.0001.0005.0005.0000.28570.39390.28570.28570.00000.00000.17860.1786
season0.6032-97.00021.0002.0000.0000.0006.0006.00014.00020.0000.21650.31860.23710.21650.00000.06190.14430.2062
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0630
predicted_3B0.0030
predicted_AB3.1330
predicted_AVG0.2568
predicted_BB0.3890
predicted_H0.8050
predicted_HBP0.0210
predicted_HR0.0220
predicted_OBP0.3423
predicted_R0.1950
predicted_RBI0.1780
predicted_SLG0.3000
predicted_SO0.6100
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.06200.06300.0624model_form_blend
predicted_3B0.00000.00300.0012model_form_blend
predicted_AB3.03103.13303.0706model_form_blend
predicted_AVG0.25600.25680.2563model_form_blend
predicted_BB0.43700.38900.4183model_form_blend
predicted_H0.77000.80500.7836model_form_blend
predicted_HBP-0.02100.0210form_only
predicted_HR0.06000.02200.0452model_form_blend
predicted_OBP0.33300.34230.3366model_form_blend
predicted_R0.18800.19500.1907model_form_blend
predicted_RBI0.27000.17800.2342model_form_blend
predicted_SLG0.32900.30000.3177model_form_blend
predicted_SO0.62500.61000.6192model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date112
Season rows before report date112
Report year2026
Profile rows used32
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B0
3B0
HR0
R0
RBI0
BB1
SO1
SF0
HBP0
season_avg0.216

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder7
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B-3B
gameID20260616_MIN@TEX
game_typefull
mlbID669701
playerID669701
playerNameJosh Smith
pos2B
startedTrue
startingPosition2B
teamTEX
teamID28
game_date2026-06-16
sl_k_percent17.7
sl_bb_percent12.4
sl_woba0.262
sl_xwoba0.294
sl_xba0.221
sl_xslg0.323
sl_sweet_spot_percent35.9
sl_barrel_batted_rate5.1
sl_hard_hit_percent33.3
sl_exit_velocity_avg87.5
sl_launch_angle_avg18.4
sl_whiff_percent22.3
sl_swing_percent47.8
Ezequiel Duran (677649) · BATTER · SS · Team TEX
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 182
All-history rows before 20260618: 182
System season_avg: 0.2770
Data season_avg (2026 season-to-date): 0.2981
Diff (system - data): -0.0211
System opponent_avg: 0.2390
System season_avg diverges from 2026 season-to-date by -0.0211. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2420.0000.000Hitting_2B0.2910.000-0.2910.000
predicted_3B0.0320.0000.000Hitting_3B0.0330.000-0.0330.000
predicted_AB3.4353.0004.000Hitting_AB3.4843.000-0.4840.000
predicted_AVG0.2330.3330.250Hitting_AVG0.2980.0000.0350.333
predicted_BB0.2741.0000.000Hitting_BB0.3191.0000.6810.000
predicted_CS-0.0000.000BaseRunning_CS0.0270.000-0.0270.000
predicted_H0.3301.0001.000Hitting_H1.0380.000-0.0381.000
predicted_HR0.0300.0000.000Hitting_HR0.0770.000-0.0770.000
predicted_OBP0.2760.5000.250Hitting_OBP0.3530.2500.1470.250
predicted_R0.4681.0000.000Hitting_R0.5050.0000.4951.000
predicted_RBI0.2001.0000.000Hitting_RBI0.6261.0000.3740.000
predicted_SLG0.3540.3330.250Hitting_SLG0.4670.000-0.1340.333
predicted_SO0.9681.0001.000Hitting_SO0.8851.0000.1150.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics4
Deboosted Metrics5
Better Metrics4
Worse Metrics5
Biggest Boostpredicted_RBI: 0.2000 -> 1.0000 (boost 0.8000, better)
Biggest Deboostpredicted_AB: 3.4350 -> 3.0000 (deboost -0.4350, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend55041predicted_H: 0.3300 -> 0.5658 (boost 0.2358, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.3509 -> 0.2693 (deboost -0.0816, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62433predicted_AB: 3.5462 -> 4.0000 (boost 0.4538, better)predicted_RBI: 0.3171 -> 0.0000 (deboost -0.3171, worse)AB rounded to 4 (raw=3.55), rates preserved: AVG=0.159 HR/AB=0.011
5bvp_blend00000--Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.200)
6consistency_constraints10101-predicted_R: 0.4577 -> 0.0000 (deboost -0.4577, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context32121predicted_AVG: 0.1589 -> 0.2500 (boost 0.0911, better)predicted_SLG: 0.2693 -> 0.2500 (deboost -0.0193, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference43131predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final31212predicted_SLG: 0.2500 -> 0.2693 (boost 0.0193, better)predicted_AVG: 0.2500 -> 0.1589 (deboost -0.0911, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "677649",
  "player_name": "Ezequiel Duran",
  "position": "SS",
  "team": "TEX",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.242,
        "predicted_3B": 0.032,
        "predicted_AB": 3.435,
        "predicted_AVG": 0.233,
        "predicted_BB": 0.274,
        "predicted_H": 0.33,
        "predicted_HR": 0.03,
        "predicted_OBP": 0.276,
        "predicted_R": 0.468,
        "predicted_RBI": 0.2,
        "predicted_SLG": 0.354,
        "predicted_SO": 0.968
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2216,
        "predicted_3B": 0.027,
        "predicted_AB": 3.5462,
        "predicted_AVG": 0.2367,
        "predicted_BB": 0.2657,
        "predicted_H": 0.5658,
        "predicted_HBP": 0.03,
        "predicted_HR": 0.0387,
        "predicted_OBP": 0.2836,
        "predicted_R": 0.4613,
        "predicted_RBI": 0.3196,
        "predicted_SLG": 0.3509,
        "predicted_SO": 1.0497
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.242,
          "after": 0.2216,
          "delta": -0.0204,
          "percent_delta": -0.0843,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.032,
          "after": 0.027,
          "delta": -0.005,
          "percent_delta": -0.1563,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.435,
          "after": 3.5462,
          "delta": 0.1112,
          "percent_delta": 0.0324,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.233,
          "after": 0.2367,
          "delta": 0.0037,
          "percent_delta": 0.0159,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.274,
          "after": 0.2657,
          "delta": -0.0083,
          "percent_delta": -0.0303,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.33,
          "after": 0.5658,
          "delta": 0.2358,
          "percent_delta": 0.7145,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.03,
          "after": 0.0387,
          "delta": 0.0087,
          "percent_delta": 0.29,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.276,
          "after": 0.2836,
          "delta": 0.0076,
          "percent_delta": 0.0275,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.468,
          "after": 0.4613,
          "delta": -0.0067,
          "percent_delta": -0.0143,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2,
          "after": 0.3196,
          "delta": 0.1196,
          "percent_delta": 0.598,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.354,
          "after": 0.3509,
          "delta": -0.0031,
          "percent_delta": -0.0088,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.968,
          "after": 1.0497,
          "delta": 0.0817,
          "percent_delta": 0.0844,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 5,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.33,
          "after": 0.5658,
          "delta": 0.2358,
          "percent_delta": 0.7145,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 62
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2216,
        "predicted_3B": 0.027,
        "predicted_AB": 3.5462,
        "predicted_AVG": 0.1589,
        "predicted_BB": 0.2647,
        "predicted_H": 0.5634,
        "predicted_HBP": 0.03,
        "predicted_HR": 0.0387,
        "predicted_OBP": 0.2173,
        "predicted_R": 0.4577,
        "predicted_RBI": 0.3171,
        "predicted_SLG": 0.2693,
        "predicted_SO": 1.0536
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2216,
          "after": 0.2216,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.027,
          "after": 0.027,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.5462,
          "after": 3.5462,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2367,
          "after": 0.1589,
          "delta": -0.0778,
          "percent_delta": -0.3287,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2657,
          "after": 0.2647,
          "delta": -0.001,
          "percent_delta": -0.0038,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.5658,
          "after": 0.5634,
          "delta": -0.0024,
          "percent_delta": -0.0042,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.03,
          "after": 0.03,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0387,
          "after": 0.0387,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2836,
          "after": 0.2173,
          "delta": -0.0663,
          "percent_delta": -0.2338,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4613,
          "after": 0.4577,
          "delta": -0.0036,
          "percent_delta": -0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3196,
          "after": 0.3171,
          "delta": -0.0025,
          "percent_delta": -0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3509,
          "after": 0.2693,
          "delta": -0.0816,
          "percent_delta": -0.2325,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0497,
          "after": 1.0536,
          "delta": 0.0039,
          "percent_delta": 0.0037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3509,
          "after": 0.2693,
          "delta": -0.0816,
          "percent_delta": -0.2325,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.55), rates preserved: AVG=0.159 HR/AB=0.011",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2216,
          "after": 0.0,
          "delta": -0.2216,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.027,
          "after": 0.0,
          "delta": -0.027,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.5462,
          "after": 4.0,
          "delta": 0.4538,
          "percent_delta": 0.128,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2647,
          "after": 0.0,
          "delta": -0.2647,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.5634,
          "after": 1.0,
          "delta": 0.4366,
          "percent_delta": 0.7749,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.03,
          "after": 0.0,
          "delta": -0.03,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0387,
          "after": 0.0,
          "delta": -0.0387,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3171,
          "after": 0.0,
          "delta": -0.3171,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0536,
          "after": 1.0,
          "delta": -0.0536,
          "percent_delta": -0.0509,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 3,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.5462,
          "after": 4.0,
          "delta": 0.4538,
          "percent_delta": 0.128,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3171,
          "after": 0.0,
          "delta": -0.3171,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.200)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9429,
        "bvp": 0.0571
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4577,
          "after": 0.0,
          "delta": -0.4577,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4577,
          "after": 0.0,
          "delta": -0.4577,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1589,
          "after": 0.25,
          "delta": 0.0911,
          "percent_delta": 0.5733,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2173,
          "after": 0.25,
          "delta": 0.0327,
          "percent_delta": 0.1505,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2693,
          "after": 0.25,
          "delta": -0.0193,
          "percent_delta": -0.0717,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1589,
          "after": 0.25,
          "delta": 0.0911,
          "percent_delta": 0.5733,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.2693,
          "after": 0.25,
          "delta": -0.0193,
          "percent_delta": -0.0717,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.1589,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2173,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.2693,
        "predicted_SO": 1.0,
        "predicted_SS": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.1589,
          "delta": -0.0911,
          "percent_delta": -0.3645,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2173,
          "delta": -0.0327,
          "percent_delta": -0.1308,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.2693,
          "delta": 0.0193,
          "percent_delta": 0.0771,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.2693,
          "delta": 0.0193,
          "percent_delta": 0.0771,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.1589,
          "delta": -0.0911,
          "percent_delta": -0.3645,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.242,
        "after": 0.0,
        "delta": -0.242,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.032,
        "after": 0.0,
        "delta": -0.032,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.435,
        "after": 3.0,
        "delta": -0.435,
        "percent_delta": -0.1266,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.233,
        "after": 0.1589,
        "delta": -0.0741,
        "percent_delta": -0.318,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.274,
        "after": 1.0,
        "delta": 0.726,
        "percent_delta": 2.6496,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.33,
        "after": 1.0,
        "delta": 0.67,
        "percent_delta": 2.0303,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.03,
        "after": 0.0,
        "delta": -0.03,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_OBP",
        "before": 0.276,
        "after": 0.2173,
        "delta": -0.0587,
        "percent_delta": -0.2127,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.468,
        "after": 1.0,
        "delta": 0.532,
        "percent_delta": 1.1368,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.2,
        "after": 1.0,
        "delta": 0.8,
        "percent_delta": 4.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.354,
        "after": 0.2693,
        "delta": -0.0847,
        "percent_delta": -0.2393,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.968,
        "after": 1.0,
        "delta": 0.032,
        "percent_delta": 0.0331,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 4,
      "deboosted_metrics": 5,
      "better_metrics": 4,
      "worse_metrics": 5,
      "biggest_boost": {
        "metric": "predicted_RBI",
        "before": 0.2,
        "after": 1.0,
        "delta": 0.8,
        "percent_delta": 4.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 3.435,
        "after": 3.0,
        "delta": -0.435,
        "percent_delta": -0.1266,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.242-
predicted_3B0.032-
predicted_AB3.435-
predicted_AVG0.233-
predicted_BB0.274-
predicted_H0.330-
predicted_HR0.030-
predicted_OBP0.276-
predicted_R0.468-
predicted_RBI0.200-
predicted_SLG0.354-
predicted_SO0.968-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.222-0.020
predicted_3B0.027-0.005
predicted_AB3.5460.111
predicted_AVG0.2370.004
predicted_BB0.266-0.008
predicted_H0.5660.236
predicted_HBP0.030-
predicted_HR0.0390.009
predicted_OBP0.2840.008
predicted_R0.461-0.007
predicted_RBI0.3200.120
predicted_SLG0.351-0.003
predicted_SO1.0500.082
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2220.000
predicted_3B0.0270.000
predicted_AB3.5460.000
predicted_AVG0.159-0.078
predicted_BB0.265-0.001
predicted_H0.563-0.002
predicted_HBP0.0300.000
predicted_HR0.0390.000
predicted_OBP0.217-0.066
predicted_R0.458-0.004
predicted_RBI0.317-0.003
predicted_SLG0.269-0.082
predicted_SO1.0540.004
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.55), rates preserved: AVG=0.159 HR/AB=0.011

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.200)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.222
predicted_3B0.000-0.027
predicted_AB4.0000.454
predicted_AVG0.2500.091
predicted_BB0.000-0.265
predicted_H1.0000.437
predicted_HR0.000-0.039
predicted_OBP0.2500.033
predicted_R0.000-0.458
predicted_RBI0.000-0.317
predicted_SLG0.250-0.019
predicted_SO1.000-0.054
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 62
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-21.0003.0000.0000.0000.0001.0002.0001.0009.0000.14290.18180.14290.14290.00000.04760.04760.4286
last_100.2010-39.0009.0002.0000.0000.0004.0004.0002.00014.0000.23080.28570.28210.23080.00000.10260.05130.3590
season0.6062-213.00059.00015.0002.0004.00036.00029.00017.00060.0000.27700.33050.42250.27700.01880.16900.07980.2817
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1930
predicted_3B0.0200
predicted_AB3.7020
predicted_AVG0.2420
predicted_BB0.2540
predicted_H0.8960
predicted_HBP0.0300
predicted_HR0.0510
predicted_OBP0.2943
predicted_R0.4520
predicted_RBI0.4870
predicted_SLG0.3466
predicted_SO1.1640
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.24200.19300.2216model_form_blend
predicted_3B0.03200.02000.0270model_form_blend
predicted_AB3.43503.70203.5462model_form_blend
predicted_AVG0.23300.24200.2367model_form_blend
predicted_BB0.27400.25400.2657model_form_blend
predicted_H0.33000.89600.5658model_form_blend
predicted_HBP-0.03000.0300form_only
predicted_HR0.03000.05100.0387model_form_blend
predicted_OBP0.27600.29430.2836model_form_blend
predicted_R0.46800.45200.4613model_form_blend
predicted_RBI0.20000.48700.3196model_form_blend
predicted_SLG0.35400.34660.3509model_form_blend
predicted_SO0.96801.16401.0497model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date182
Season rows before report date182
Report year2026
Profile rows used62
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B0
3B0
HR0
R1
RBI1
BB1
SO1
SF0
HBP0
season_avg0.277

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.0
Hitting_BB1
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB0
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedSS-CF
gameID20260616_MIN@TEX
game_typefull
mlbID677649
playerID677649
playerNameEzequiel Duran
pos2B
startedTrue
startingPositionSS
teamTEX
teamID28
game_date2026-06-16
sl_k_percent25.6
sl_bb_percent7.3
sl_woba0.33
sl_xwoba0.304
sl_xba0.257
sl_xslg0.365
sl_sweet_spot_percent34.6
sl_barrel_batted_rate5.8
sl_hard_hit_percent37.2
sl_exit_velocity_avg89.6
sl_launch_angle_avg10.6
sl_whiff_percent29.5
sl_swing_percent49.8
Jake Burger (669394) · BATTER · 1B · Team TEX
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 232
All-history rows before 20260618: 232
System season_avg: 0.2470
Data season_avg (2026 season-to-date): 0.2393
Diff (system - data): 0.0077
System opponent_avg: 0.1240

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1830.0000.000Hitting_2B0.1680.000-0.1680.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.7044.0004.000Hitting_AB3.8364.0000.1640.000
predicted_AVG0.2440.0000.250Hitting_AVG0.2390.250-0.239-0.250
predicted_BB0.2960.0000.000Hitting_BB0.2760.000-0.2760.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.8900.0001.000Hitting_H0.9181.000-0.918-1.000
predicted_HR0.1500.0000.000Hitting_HR0.1720.000-0.1720.000
predicted_OBP0.3130.0000.250Hitting_OBP0.2920.250-0.292-0.250
predicted_R0.4510.0000.000Hitting_R0.4740.000-0.4740.000
predicted_RBI0.4800.0001.000Hitting_RBI0.6590.000-0.6590.000
predicted_SLG0.4290.0000.250Hitting_SLG0.4180.250-0.418-0.250
predicted_SO1.0700.0001.000Hitting_SO1.1551.000-1.155-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics1
Deboosted Metrics8
Better Metrics2
Worse Metrics7
Biggest Boostpredicted_AB: 3.7040 -> 4.0000 (boost 0.2960, better)
Biggest Deboostpredicted_SO: 1.0700 -> 0.0000 (deboost -1.0700, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend22020predicted_SLG: 0.4290 -> 0.4408 (boost 0.0118, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_SLG: 0.4408 -> 0.4289 (deboost -0.0119, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73443predicted_RBI: 0.4838 -> 1.0000 (boost 0.5162, better)predicted_BB: 0.2966 -> 0.0000 (deboost -0.2966, worse)AB rounded to 4 (raw=3.70), rates preserved: AVG=0.247 HR/AB=0.044
5bvp_blend00000--Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.000)
6consistency_constraints10101-predicted_R: 0.4106 -> 0.0000 (deboost -0.4106, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context20202-predicted_SLG: 0.4289 -> 0.2500 (deboost -0.1789, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference30312-predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final22020predicted_SLG: 0.2500 -> 0.4289 (boost 0.1789, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "669394",
  "player_name": "Jake Burger",
  "position": "1B",
  "team": "TEX",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.183,
        "predicted_3B": 0.0,
        "predicted_AB": 3.704,
        "predicted_AVG": 0.244,
        "predicted_BB": 0.296,
        "predicted_H": 0.89,
        "predicted_HR": 0.15,
        "predicted_OBP": 0.313,
        "predicted_R": 0.451,
        "predicted_RBI": 0.48,
        "predicted_SLG": 0.429,
        "predicted_SO": 1.07
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.186,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.6947,
        "predicted_AVG": 0.2508,
        "predicted_BB": 0.2977,
        "predicted_H": 0.9183,
        "predicted_HBP": 0.011,
        "predicted_HR": 0.1614,
        "predicted_OBP": 0.3134,
        "predicted_R": 0.4138,
        "predicted_RBI": 0.4876,
        "predicted_SLG": 0.4408,
        "predicted_SO": 1.0877
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.183,
          "after": 0.186,
          "delta": 0.003,
          "percent_delta": 0.0164,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.704,
          "after": 3.6947,
          "delta": -0.0093,
          "percent_delta": -0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.244,
          "after": 0.2508,
          "delta": 0.0068,
          "percent_delta": 0.0279,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.296,
          "after": 0.2977,
          "delta": 0.0017,
          "percent_delta": 0.0057,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.89,
          "after": 0.9183,
          "delta": 0.0283,
          "percent_delta": 0.0318,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.15,
          "after": 0.1614,
          "delta": 0.0114,
          "percent_delta": 0.076,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.313,
          "after": 0.3134,
          "delta": 0.0004,
          "percent_delta": 0.0013,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.451,
          "after": 0.4138,
          "delta": -0.0372,
          "percent_delta": -0.0825,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.48,
          "after": 0.4876,
          "delta": 0.0076,
          "percent_delta": 0.0158,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.429,
          "after": 0.4408,
          "delta": 0.0118,
          "percent_delta": 0.0275,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.07,
          "after": 1.0877,
          "delta": 0.0177,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.429,
          "after": 0.4408,
          "delta": 0.0118,
          "percent_delta": 0.0275,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 71
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.186,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.6947,
        "predicted_AVG": 0.2475,
        "predicted_BB": 0.2966,
        "predicted_H": 0.9144,
        "predicted_HBP": 0.011,
        "predicted_HR": 0.1612,
        "predicted_OBP": 0.3034,
        "predicted_R": 0.4106,
        "predicted_RBI": 0.4838,
        "predicted_SLG": 0.4289,
        "predicted_SO": 1.0917
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.186,
          "after": 0.186,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6947,
          "after": 3.6947,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2508,
          "after": 0.2475,
          "delta": -0.0033,
          "percent_delta": -0.0132,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2977,
          "after": 0.2966,
          "delta": -0.0011,
          "percent_delta": -0.0037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9183,
          "after": 0.9144,
          "delta": -0.0039,
          "percent_delta": -0.0042,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.011,
          "after": 0.011,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1614,
          "after": 0.1612,
          "delta": -0.0002,
          "percent_delta": -0.0012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3134,
          "after": 0.3034,
          "delta": -0.01,
          "percent_delta": -0.0319,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4138,
          "after": 0.4106,
          "delta": -0.0032,
          "percent_delta": -0.0077,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4876,
          "after": 0.4838,
          "delta": -0.0038,
          "percent_delta": -0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4408,
          "after": 0.4289,
          "delta": -0.0119,
          "percent_delta": -0.027,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0877,
          "after": 1.0917,
          "delta": 0.004,
          "percent_delta": 0.0037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4408,
          "after": 0.4289,
          "delta": -0.0119,
          "percent_delta": -0.027,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.70), rates preserved: AVG=0.247 HR/AB=0.044",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.186,
          "after": 0.0,
          "delta": -0.186,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6947,
          "after": 4.0,
          "delta": 0.3053,
          "percent_delta": 0.0826,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2966,
          "after": 0.0,
          "delta": -0.2966,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9144,
          "after": 1.0,
          "delta": 0.0856,
          "percent_delta": 0.0936,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.011,
          "after": 0.0,
          "delta": -0.011,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1612,
          "after": 0.0,
          "delta": -0.1612,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4838,
          "after": 1.0,
          "delta": 0.5162,
          "percent_delta": 1.067,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0917,
          "after": 1.0,
          "delta": -0.0917,
          "percent_delta": -0.084,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 4,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.4838,
          "after": 1.0,
          "delta": 0.5162,
          "percent_delta": 1.067,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.2966,
          "after": 0.0,
          "delta": -0.2966,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.000)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9429,
        "bvp": 0.0571
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4106,
          "after": 0.0,
          "delta": -0.4106,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4106,
          "after": 0.0,
          "delta": -0.4106,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2475,
          "after": 0.25,
          "delta": 0.0025,
          "percent_delta": 0.0101,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3034,
          "after": 0.25,
          "delta": -0.0534,
          "percent_delta": -0.176,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4289,
          "after": 0.25,
          "delta": -0.1789,
          "percent_delta": -0.4171,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4289,
          "after": 0.25,
          "delta": -0.1789,
          "percent_delta": -0.4171,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2475,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_FB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3034,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4289,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2475,
          "delta": -0.0025,
          "percent_delta": -0.0101,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3034,
          "delta": 0.0534,
          "percent_delta": 0.2136,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4289,
          "delta": 0.1789,
          "percent_delta": 0.7158,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4289,
          "delta": 0.1789,
          "percent_delta": 0.7158,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.183,
        "after": 0.0,
        "delta": -0.183,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.704,
        "after": 4.0,
        "delta": 0.296,
        "percent_delta": 0.0799,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.244,
        "after": 0.2475,
        "delta": 0.0035,
        "percent_delta": 0.0143,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.296,
        "after": 0.0,
        "delta": -0.296,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.89,
        "after": 0.0,
        "delta": -0.89,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.15,
        "after": 0.0,
        "delta": -0.15,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.313,
        "after": 0.3034,
        "delta": -0.0096,
        "percent_delta": -0.0307,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.451,
        "after": 0.0,
        "delta": -0.451,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.48,
        "after": 0.0,
        "delta": -0.48,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.429,
        "after": 0.4289,
        "delta": -0.0001,
        "percent_delta": -0.0002,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.07,
        "after": 0.0,
        "delta": -1.07,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 1,
      "deboosted_metrics": 8,
      "better_metrics": 2,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.704,
        "after": 4.0,
        "delta": 0.296,
        "percent_delta": 0.0799,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 1.07,
        "after": 0.0,
        "delta": -1.07,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.183-
predicted_3B0.000-
predicted_AB3.704-
predicted_AVG0.244-
predicted_BB0.296-
predicted_H0.890-
predicted_HR0.150-
predicted_OBP0.313-
predicted_R0.451-
predicted_RBI0.480-
predicted_SLG0.429-
predicted_SO1.070-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1860.003
predicted_3B0.0000.000
predicted_AB3.695-0.009
predicted_AVG0.2510.007
predicted_BB0.2980.002
predicted_H0.9180.028
predicted_HBP0.011-
predicted_HR0.1610.011
predicted_OBP0.3130.000
predicted_R0.414-0.037
predicted_RBI0.4880.008
predicted_SLG0.4410.012
predicted_SO1.0880.018
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1860.000
predicted_3B0.0000.000
predicted_AB3.6950.000
predicted_AVG0.247-0.003
predicted_BB0.297-0.001
predicted_H0.914-0.004
predicted_HBP0.0110.000
predicted_HR0.161-0.000
predicted_OBP0.303-0.010
predicted_R0.411-0.003
predicted_RBI0.484-0.004
predicted_SLG0.429-0.012
predicted_SO1.0920.004
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.70), rates preserved: AVG=0.247 HR/AB=0.044

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.000)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI1.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.186
predicted_3B0.000-0.000
predicted_AB4.0000.305
predicted_AVG0.2500.003
predicted_BB0.000-0.297
predicted_H1.0000.086
predicted_HR0.000-0.161
predicted_OBP0.250-0.053
predicted_R0.000-0.411
predicted_RBI1.0000.516
predicted_SLG0.250-0.179
predicted_SO1.000-0.092
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 71
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-19.0004.0001.0000.0001.0001.0001.0001.0008.0000.21050.25000.42110.21050.05260.05260.05260.4210
last_100.2010-34.00012.0002.0000.0002.0005.0002.0004.0009.0000.35290.41030.58820.35290.05880.14710.11770.2647
season0.6071-263.00065.00013.0000.00012.00042.00032.00021.00076.0000.24710.30310.43350.24720.04560.15970.07990.2890
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1900
predicted_3B0.0010
predicted_AB3.6820
predicted_AVG0.2600
predicted_BB0.3000
predicted_H0.9570
predicted_HBP0.0110
predicted_HR0.1770
predicted_OBP0.3139
predicted_R0.3630
predicted_RBI0.4980
predicted_SLG0.4570
predicted_SO1.1120
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.18300.19000.1860model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB3.70403.68203.6947model_form_blend
predicted_AVG0.24400.26000.2508model_form_blend
predicted_BB0.29600.30000.2977model_form_blend
predicted_H0.89000.95700.9183model_form_blend
predicted_HBP-0.01100.0110form_only
predicted_HR0.15000.17700.1614model_form_blend
predicted_OBP0.31300.31390.3134model_form_blend
predicted_R0.45100.36300.4138model_form_blend
predicted_RBI0.48000.49800.4876model_form_blend
predicted_SLG0.42900.45700.4408model_form_blend
predicted_SO1.07001.11201.0877model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date232
Season rows before report date232
Report year2026
Profile rows used71
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.247

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB1
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B
gameID20260616_MIN@TEX
game_typefull
mlbID669394
playerID669394
playerNameJake Burger
pos1B
startedTrue
startingPosition1B
teamTEX
teamID28
game_date2026-06-16
sl_k_percent26.5
sl_bb_percent7.3
sl_woba0.322
sl_xwoba0.305
sl_xba0.24
sl_xslg0.402
sl_sweet_spot_percent32.3
sl_barrel_batted_rate9.6
sl_hard_hit_percent46.6
sl_exit_velocity_avg89.9
sl_launch_angle_avg11.4
sl_whiff_percent35.2
sl_swing_percent49.7
Alejandro Osuna (696030) · BATTER · CF · Team TEX
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 98
All-history rows before 20260618: 98
System season_avg: 0.2450
Data season_avg (2026 season-to-date): 0.2364
Diff (system - data): 0.0086
System opponent_avg: 0.1430

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0510.0000.000Hitting_2B0.0820.000-0.0820.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.6153.0003.000Hitting_AB2.8064.0000.194-1.000
predicted_AVG0.2580.3330.333Hitting_AVG0.2360.2500.0970.083
predicted_BB0.2821.0000.000Hitting_BB0.3980.0000.6021.000
predicted_CS-0.0000.000BaseRunning_CS0.0710.000-0.0710.000
predicted_H0.6201.0001.000Hitting_H0.6631.0000.3370.000
predicted_HR0.0500.0000.000Hitting_HR0.0000.0000.0000.000
predicted_OBP0.3090.5000.333Hitting_OBP0.3710.2500.1290.250
predicted_R0.2820.0000.000Hitting_R0.3471.000-0.347-1.000
predicted_RBI0.2900.0000.000Hitting_RBI0.2450.000-0.2450.000
predicted_SLG0.3070.3330.333Hitting_SLG0.2650.2500.0680.083
predicted_SO0.4360.0001.000Hitting_SO0.5101.000-0.510-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics4
Worse Metrics7
Biggest Boostpredicted_BB: 0.2820 -> 1.0000 (boost 0.7180, better)
Biggest Deboostpredicted_SO: 0.4360 -> 0.0000 (deboost -0.4360, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend31212predicted_AB: 2.6150 -> 2.7804 (boost 0.1654, better)predicted_SLG: 0.3070 -> 0.2926 (deboost -0.0144, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_AVG: 0.2465 -> 0.2325 (deboost -0.0140, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73425predicted_SO: 0.4750 -> 1.0000 (boost 0.5250, worse)predicted_RBI: 0.2800 -> 0.0000 (deboost -0.2800, worse)AB rounded to 3 (raw=2.78), rates preserved: AVG=0.233 HR/AB=0.014
5consistency_constraints10101-predicted_R: 0.3038 -> 0.0000 (deboost -0.3038, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.2325 -> 0.3330 (boost 0.1005, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21120predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.2325 (deboost -0.1005, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "696030",
  "player_name": "Alejandro Osuna",
  "position": "CF",
  "team": "TEX",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.051,
        "predicted_3B": 0.0,
        "predicted_AB": 2.615,
        "predicted_AVG": 0.258,
        "predicted_BB": 0.282,
        "predicted_H": 0.62,
        "predicted_HR": 0.05,
        "predicted_OBP": 0.309,
        "predicted_R": 0.282,
        "predicted_RBI": 0.29,
        "predicted_SLG": 0.307,
        "predicted_SO": 0.436
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0537,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.7804,
        "predicted_AVG": 0.2465,
        "predicted_BB": 0.2695,
        "predicted_H": 0.6493,
        "predicted_HBP": 0.107,
        "predicted_HR": 0.0387,
        "predicted_OBP": 0.3088,
        "predicted_R": 0.3062,
        "predicted_RBI": 0.2822,
        "predicted_SLG": 0.2926,
        "predicted_SO": 0.4732
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.051,
          "after": 0.0537,
          "delta": 0.0027,
          "percent_delta": 0.0529,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.615,
          "after": 2.7804,
          "delta": 0.1654,
          "percent_delta": 0.0633,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.258,
          "after": 0.2465,
          "delta": -0.0115,
          "percent_delta": -0.0446,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.282,
          "after": 0.2695,
          "delta": -0.0125,
          "percent_delta": -0.0443,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.62,
          "after": 0.6493,
          "delta": 0.0293,
          "percent_delta": 0.0473,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.05,
          "after": 0.0387,
          "delta": -0.0113,
          "percent_delta": -0.226,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.309,
          "after": 0.3088,
          "delta": -0.0002,
          "percent_delta": -0.0006,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.282,
          "after": 0.3062,
          "delta": 0.0242,
          "percent_delta": 0.0858,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.29,
          "after": 0.2822,
          "delta": -0.0078,
          "percent_delta": -0.0269,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.307,
          "after": 0.2926,
          "delta": -0.0144,
          "percent_delta": -0.0469,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.436,
          "after": 0.4732,
          "delta": 0.0372,
          "percent_delta": 0.0853,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.615,
          "after": 2.7804,
          "delta": 0.1654,
          "percent_delta": 0.0633,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.307,
          "after": 0.2926,
          "delta": -0.0144,
          "percent_delta": -0.0469,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 39
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0537,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.7804,
        "predicted_AVG": 0.2325,
        "predicted_BB": 0.2685,
        "predicted_H": 0.6465,
        "predicted_HBP": 0.107,
        "predicted_HR": 0.0387,
        "predicted_OBP": 0.3001,
        "predicted_R": 0.3038,
        "predicted_RBI": 0.28,
        "predicted_SLG": 0.2941,
        "predicted_SO": 0.475
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0537,
          "after": 0.0537,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.7804,
          "after": 2.7804,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2465,
          "after": 0.2325,
          "delta": -0.014,
          "percent_delta": -0.0568,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2695,
          "after": 0.2685,
          "delta": -0.001,
          "percent_delta": -0.0037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6493,
          "after": 0.6465,
          "delta": -0.0028,
          "percent_delta": -0.0043,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.107,
          "after": 0.107,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0387,
          "after": 0.0387,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3088,
          "after": 0.3001,
          "delta": -0.0087,
          "percent_delta": -0.0282,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3062,
          "after": 0.3038,
          "delta": -0.0024,
          "percent_delta": -0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2822,
          "after": 0.28,
          "delta": -0.0022,
          "percent_delta": -0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2926,
          "after": 0.2941,
          "delta": 0.0015,
          "percent_delta": 0.0051,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.4732,
          "after": 0.475,
          "delta": 0.0018,
          "percent_delta": 0.0038,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2465,
          "after": 0.2325,
          "delta": -0.014,
          "percent_delta": -0.0568,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.78), rates preserved: AVG=0.233 HR/AB=0.014",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0537,
          "after": 0.0,
          "delta": -0.0537,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.7804,
          "after": 3.0,
          "delta": 0.2196,
          "percent_delta": 0.079,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2685,
          "after": 0.0,
          "delta": -0.2685,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6465,
          "after": 1.0,
          "delta": 0.3535,
          "percent_delta": 0.5468,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.107,
          "after": 0.0,
          "delta": -0.107,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0387,
          "after": 0.0,
          "delta": -0.0387,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.28,
          "after": 0.0,
          "delta": -0.28,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.475,
          "after": 1.0,
          "delta": 0.525,
          "percent_delta": 1.1053,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.475,
          "after": 1.0,
          "delta": 0.525,
          "percent_delta": 1.1053,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.28,
          "after": 0.0,
          "delta": -0.28,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3038,
          "after": 0.0,
          "delta": -0.3038,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3038,
          "after": 0.0,
          "delta": -0.3038,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2325,
          "after": 0.333,
          "delta": 0.1005,
          "percent_delta": 0.4323,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3001,
          "after": 0.333,
          "delta": 0.0329,
          "percent_delta": 0.1096,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2941,
          "after": 0.333,
          "delta": 0.0389,
          "percent_delta": 0.1323,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2325,
          "after": 0.333,
          "delta": 0.1005,
          "percent_delta": 0.4323,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2325,
        "predicted_BB": 1.0,
        "predicted_CF": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3001,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.2941,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2325,
          "delta": -0.1005,
          "percent_delta": -0.3017,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3001,
          "delta": -0.0329,
          "percent_delta": -0.0988,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.2941,
          "delta": -0.0389,
          "percent_delta": -0.1167,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2325,
          "delta": -0.1005,
          "percent_delta": -0.3017,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.051,
        "after": 0.0,
        "delta": -0.051,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.615,
        "after": 3.0,
        "delta": 0.385,
        "percent_delta": 0.1472,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.258,
        "after": 0.2325,
        "delta": -0.0255,
        "percent_delta": -0.0988,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.282,
        "after": 1.0,
        "delta": 0.718,
        "percent_delta": 2.5461,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.62,
        "after": 1.0,
        "delta": 0.38,
        "percent_delta": 0.6129,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.05,
        "after": 0.0,
        "delta": -0.05,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.309,
        "after": 0.3001,
        "delta": -0.0089,
        "percent_delta": -0.0288,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.282,
        "after": 0.0,
        "delta": -0.282,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.29,
        "after": 0.0,
        "delta": -0.29,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.307,
        "after": 0.2941,
        "delta": -0.0129,
        "percent_delta": -0.042,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.436,
        "after": 0.0,
        "delta": -0.436,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 4,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.282,
        "after": 1.0,
        "delta": 0.718,
        "percent_delta": 2.5461,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.436,
        "after": 0.0,
        "delta": -0.436,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.051-
predicted_3B0.000-
predicted_AB2.615-
predicted_AVG0.258-
predicted_BB0.282-
predicted_H0.620-
predicted_HR0.050-
predicted_OBP0.309-
predicted_R0.282-
predicted_RBI0.290-
predicted_SLG0.307-
predicted_SO0.436-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.0540.003
predicted_3B0.0010.001
predicted_AB2.7800.165
predicted_AVG0.246-0.012
predicted_BB0.270-0.012
predicted_H0.6490.029
predicted_HBP0.107-
predicted_HR0.039-0.011
predicted_OBP0.309-0.000
predicted_R0.3060.024
predicted_RBI0.282-0.008
predicted_SLG0.293-0.014
predicted_SO0.4730.037
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0540.000
predicted_3B0.0010.000
predicted_AB2.7800.000
predicted_AVG0.233-0.014
predicted_BB0.269-0.001
predicted_H0.646-0.003
predicted_HBP0.1070.000
predicted_HR0.0390.000
predicted_OBP0.300-0.009
predicted_R0.304-0.002
predicted_RBI0.280-0.002
predicted_SLG0.2940.001
predicted_SO0.4750.002
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.78), rates preserved: AVG=0.233 HR/AB=0.014

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.054
predicted_3B0.000-0.001
predicted_AB3.0000.220
predicted_AVG0.3330.101
predicted_BB0.000-0.269
predicted_H1.0000.354
predicted_HR0.000-0.039
predicted_OBP0.3330.033
predicted_R0.000-0.304
predicted_RBI0.000-0.280
predicted_SLG0.3330.039
predicted_SO1.0000.525
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 39
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-16.0003.0000.0000.0000.0001.0002.0001.0003.0000.18750.23530.18750.18750.00000.06250.06250.1875
last_100.2010-31.0006.0000.0000.0000.0002.0003.0001.0004.0000.19350.24240.19350.19350.00000.06450.03230.1290
season0.6039-102.00025.0002.0000.0000.0009.00011.00011.00017.0000.24510.35290.26470.24510.00000.08820.10780.1667
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0580
predicted_3B0.0020
predicted_AB3.0380
predicted_AVG0.2287
predicted_BB0.2500
predicted_H0.6950
predicted_HBP0.1070
predicted_HR0.0210
predicted_OBP0.3085
predicted_R0.3440
predicted_RBI0.2700
predicted_SLG0.2702
predicted_SO0.5310
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.05100.05800.0537model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB2.61503.03802.7804model_form_blend
predicted_AVG0.25800.22870.2465model_form_blend
predicted_BB0.28200.25000.2695model_form_blend
predicted_H0.62000.69500.6493model_form_blend
predicted_HBP-0.10700.1070form_only
predicted_HR0.05000.02100.0387model_form_blend
predicted_OBP0.30900.30850.3088model_form_blend
predicted_R0.28200.34400.3062model_form_blend
predicted_RBI0.29000.27000.2822model_form_blend
predicted_SLG0.30700.27020.2926model_form_blend
predicted_SO0.43600.53100.4732model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date98
Season rows before report date98
Report year2026
Profile rows used39
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B0
3B0
HR0
R0
RBI0
BB1
SO0
SF0
HBP0
season_avg0.245

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB1
Hitting_battingOrder8
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedCF-RF
gameID20260616_MIN@TEX
game_typefull
mlbID696030
playerID696030
playerNameAlejandro Osuna
posLF
startedTrue
startingPositionCF
teamTEX
teamID28
game_date2026-06-16
sl_k_percent14.0
sl_bb_percent9.9
sl_woba0.299
sl_xwoba0.317
sl_xba0.259
sl_xslg0.31
sl_sweet_spot_percent29.1
sl_barrel_batted_rate0.0
sl_hard_hit_percent32.6
sl_exit_velocity_avg88.0
sl_launch_angle_avg3.2
sl_whiff_percent16.3
sl_swing_percent48.0
Kyle Higashioka (543309) · BATTER · C · Team TEX
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 105
All-history rows before 20260618: 105
System season_avg: 0.2350
Data season_avg (2026 season-to-date): 0.1988
Diff (system - data): 0.0362
System opponent_avg: 0.2350
System season_avg diverges from 2026 season-to-date by 0.0362. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0830.0000.000Hitting_2B0.0570.000-0.0570.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.1944.0003.000Hitting_AB3.2570.0000.7434.000
predicted_AVG0.2390.0000.333Hitting_AVG0.199--0.199-
predicted_BB0.3330.0000.000Hitting_BB0.3710.000-0.3710.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.2500.0001.000Hitting_H0.6480.000-0.6480.000
predicted_HR0.0500.0000.000Hitting_HR0.1240.000-0.1240.000
predicted_OBP0.2960.0000.333Hitting_OBP0.286--0.286-
predicted_R0.4170.0000.000Hitting_R0.3710.000-0.3710.000
predicted_RBI0.1700.0000.000Hitting_RBI0.3620.000-0.3620.000
predicted_SLG0.3970.0000.333Hitting_SLG0.330--0.330-
predicted_SO0.9171.0001.000Hitting_SO1.0670.000-0.0671.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics2
Deboosted Metrics9
Better Metrics1
Worse Metrics10
Biggest Boostpredicted_AB: 3.1940 -> 4.0000 (boost 0.8060, better)
Biggest Deboostpredicted_R: 0.4170 -> 0.0000 (deboost -0.4170, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend55050predicted_H: 0.2500 -> 0.4697 (boost 0.2197, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.4060 -> 0.2590 (deboost -0.1470, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71607predicted_SO: 0.8824 -> 1.0000 (boost 0.1176, worse)predicted_H: 0.4677 -> 0.0000 (deboost -0.4677, worse)AB rounded to 3 (raw=3.25), rates preserved: AVG=0.144 HR/AB=0.029
5consistency_constraints21111predicted_H: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_R: 0.4177 -> 0.0000 (deboost -0.4177, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.1441 -> 0.3330 (boost 0.1889, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21111predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.1441 (deboost -0.1889, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "543309",
  "player_name": "Kyle Higashioka",
  "position": "C",
  "team": "TEX",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.083,
        "predicted_3B": 0.0,
        "predicted_AB": 3.194,
        "predicted_AVG": 0.239,
        "predicted_BB": 0.333,
        "predicted_H": 0.25,
        "predicted_HR": 0.05,
        "predicted_OBP": 0.296,
        "predicted_R": 0.417,
        "predicted_RBI": 0.17,
        "predicted_SLG": 0.397,
        "predicted_SO": 0.917
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0925,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.2453,
        "predicted_AVG": 0.2405,
        "predicted_BB": 0.3468,
        "predicted_H": 0.4697,
        "predicted_HBP": 0.02,
        "predicted_HR": 0.093,
        "predicted_OBP": 0.3063,
        "predicted_R": 0.4209,
        "predicted_RBI": 0.2864,
        "predicted_SLG": 0.406,
        "predicted_SO": 0.8791
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.083,
          "after": 0.0925,
          "delta": 0.0095,
          "percent_delta": 0.1145,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.194,
          "after": 3.2453,
          "delta": 0.0513,
          "percent_delta": 0.0161,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.239,
          "after": 0.2405,
          "delta": 0.0015,
          "percent_delta": 0.0063,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.333,
          "after": 0.3468,
          "delta": 0.0138,
          "percent_delta": 0.0414,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.25,
          "after": 0.4697,
          "delta": 0.2197,
          "percent_delta": 0.8788,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.05,
          "after": 0.093,
          "delta": 0.043,
          "percent_delta": 0.86,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.296,
          "after": 0.3063,
          "delta": 0.0103,
          "percent_delta": 0.0348,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.417,
          "after": 0.4209,
          "delta": 0.0039,
          "percent_delta": 0.0094,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.17,
          "after": 0.2864,
          "delta": 0.1164,
          "percent_delta": 0.6847,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.397,
          "after": 0.406,
          "delta": 0.009,
          "percent_delta": 0.0227,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.917,
          "after": 0.8791,
          "delta": -0.0379,
          "percent_delta": -0.0413,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 5,
        "deboosted_metrics": 0,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.25,
          "after": 0.4697,
          "delta": 0.2197,
          "percent_delta": 0.8788,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 36
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0925,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.2453,
        "predicted_AVG": 0.1441,
        "predicted_BB": 0.3455,
        "predicted_H": 0.4677,
        "predicted_HBP": 0.02,
        "predicted_HR": 0.0929,
        "predicted_OBP": 0.2265,
        "predicted_R": 0.4177,
        "predicted_RBI": 0.2842,
        "predicted_SLG": 0.259,
        "predicted_SO": 0.8824
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0925,
          "after": 0.0925,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.2453,
          "after": 3.2453,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2405,
          "after": 0.1441,
          "delta": -0.0964,
          "percent_delta": -0.4008,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3468,
          "after": 0.3455,
          "delta": -0.0013,
          "percent_delta": -0.0037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.4697,
          "after": 0.4677,
          "delta": -0.002,
          "percent_delta": -0.0043,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.02,
          "after": 0.02,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.093,
          "after": 0.0929,
          "delta": -0.0001,
          "percent_delta": -0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3063,
          "after": 0.2265,
          "delta": -0.0798,
          "percent_delta": -0.2605,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4209,
          "after": 0.4177,
          "delta": -0.0032,
          "percent_delta": -0.0076,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2864,
          "after": 0.2842,
          "delta": -0.0022,
          "percent_delta": -0.0077,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.406,
          "after": 0.259,
          "delta": -0.147,
          "percent_delta": -0.3621,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8791,
          "after": 0.8824,
          "delta": 0.0033,
          "percent_delta": 0.0038,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.406,
          "after": 0.259,
          "delta": -0.147,
          "percent_delta": -0.3621,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.25), rates preserved: AVG=0.144 HR/AB=0.029",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0925,
          "after": 0.0,
          "delta": -0.0925,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.2453,
          "after": 3.0,
          "delta": -0.2453,
          "percent_delta": -0.0756,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3455,
          "after": 0.0,
          "delta": -0.3455,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.4677,
          "after": 0.0,
          "delta": -0.4677,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.02,
          "after": 0.0,
          "delta": -0.02,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0929,
          "after": 0.0,
          "delta": -0.0929,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2842,
          "after": 0.0,
          "delta": -0.2842,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8824,
          "after": 1.0,
          "delta": 0.1176,
          "percent_delta": 0.1333,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 0,
        "worse_metrics": 7,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.8824,
          "after": 1.0,
          "delta": 0.1176,
          "percent_delta": 0.1333,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 0.4677,
          "after": 0.0,
          "delta": -0.4677,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4177,
          "after": 0.0,
          "delta": -0.4177,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4177,
          "after": 0.0,
          "delta": -0.4177,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1441,
          "after": 0.333,
          "delta": 0.1889,
          "percent_delta": 1.3109,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2265,
          "after": 0.333,
          "delta": 0.1065,
          "percent_delta": 0.4702,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.259,
          "after": 0.333,
          "delta": 0.074,
          "percent_delta": 0.2857,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1441,
          "after": 0.333,
          "delta": 0.1889,
          "percent_delta": 1.3109,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.1441,
        "predicted_BB": 0.0,
        "predicted_C": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2265,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.259,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1441,
          "delta": -0.1889,
          "percent_delta": -0.5672,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2265,
          "delta": -0.1065,
          "percent_delta": -0.3199,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.259,
          "delta": -0.074,
          "percent_delta": -0.2223,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1441,
          "delta": -0.1889,
          "percent_delta": -0.5672,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.083,
        "after": 0.0,
        "delta": -0.083,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.194,
        "after": 4.0,
        "delta": 0.806,
        "percent_delta": 0.2523,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.239,
        "after": 0.1441,
        "delta": -0.0949,
        "percent_delta": -0.3971,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.333,
        "after": 0.0,
        "delta": -0.333,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.25,
        "after": 0.0,
        "delta": -0.25,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.05,
        "after": 0.0,
        "delta": -0.05,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.296,
        "after": 0.2265,
        "delta": -0.0695,
        "percent_delta": -0.2348,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.417,
        "after": 0.0,
        "delta": -0.417,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.17,
        "after": 0.0,
        "delta": -0.17,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.397,
        "after": 0.259,
        "delta": -0.138,
        "percent_delta": -0.3476,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.917,
        "after": 1.0,
        "delta": 0.083,
        "percent_delta": 0.0905,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 2,
      "deboosted_metrics": 9,
      "better_metrics": 1,
      "worse_metrics": 10,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.194,
        "after": 4.0,
        "delta": 0.806,
        "percent_delta": 0.2523,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_R",
        "before": 0.417,
        "after": 0.0,
        "delta": -0.417,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.083-
predicted_3B0.000-
predicted_AB3.194-
predicted_AVG0.239-
predicted_BB0.333-
predicted_H0.250-
predicted_HR0.050-
predicted_OBP0.296-
predicted_R0.417-
predicted_RBI0.170-
predicted_SLG0.397-
predicted_SO0.917-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.0920.009
predicted_3B0.0010.001
predicted_AB3.2450.051
predicted_AVG0.2400.002
predicted_BB0.3470.014
predicted_H0.4700.220
predicted_HBP0.020-
predicted_HR0.0930.043
predicted_OBP0.3060.010
predicted_R0.4210.004
predicted_RBI0.2860.116
predicted_SLG0.4060.009
predicted_SO0.879-0.038
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0920.000
predicted_3B0.0010.000
predicted_AB3.2450.000
predicted_AVG0.144-0.096
predicted_BB0.345-0.001
predicted_H0.468-0.002
predicted_HBP0.0200.000
predicted_HR0.093-0.000
predicted_OBP0.227-0.080
predicted_R0.418-0.003
predicted_RBI0.284-0.002
predicted_SLG0.259-0.147
predicted_SO0.8820.003
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.25), rates preserved: AVG=0.144 HR/AB=0.029

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H0.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0001.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.092
predicted_3B0.000-0.001
predicted_AB3.000-0.245
predicted_AVG0.3330.189
predicted_BB0.000-0.345
predicted_H1.0000.532
predicted_HR0.000-0.093
predicted_OBP0.3330.107
predicted_R0.000-0.418
predicted_RBI0.000-0.284
predicted_SLG0.3330.074
predicted_SO1.0000.118
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 36
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-16.0003.0000.0000.0001.0003.0001.0002.0003.0000.18750.27780.37500.18750.06250.18750.12500.1875
last_100.2010-32.00010.0002.0000.0002.0005.0006.0005.0007.0000.31250.40540.56250.31250.06250.15620.15620.2188
season0.6036-115.00027.0003.0000.0005.00014.00015.00012.00033.0000.23480.31250.39130.23480.04350.12170.10430.2870
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1070
predicted_3B0.0020
predicted_AB3.3240
predicted_AVG0.2427
predicted_BB0.3680
predicted_H0.8070
predicted_HBP0.0200
predicted_HR0.1590
predicted_OBP0.3221
predicted_R0.4270
predicted_RBI0.4650
predicted_SLG0.4199
predicted_SO0.8210
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.08300.10700.0925model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB3.19403.32403.2453model_form_blend
predicted_AVG0.23900.24270.2405model_form_blend
predicted_BB0.33300.36800.3468model_form_blend
predicted_H0.25000.80700.4697model_form_blend
predicted_HBP-0.02000.0200form_only
predicted_HR0.05000.15900.0930model_form_blend
predicted_OBP0.29600.32210.3063model_form_blend
predicted_R0.41700.42700.4209model_form_blend
predicted_RBI0.17000.46500.2864model_form_blend
predicted_SLG0.39700.41990.4060model_form_blend
predicted_SO0.91700.82100.8791model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date105
Season rows before report date105
Report year2026
Profile rows used36
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.235

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced6
Pitching_ER2
Pitching_ERA18.00
Pitching_Flyouts2
Pitching_Groundouts0
Pitching_H3
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches13
Pitching_R2
Pitching_SO0
Pitching_Strikes8
Pitching_Wild Pitch0
Pitching_pitchingOrder5
allPositionsPlayedP
gameID20260616_MIN@TEX
game_typefull
mlbID543309
playerID543309
playerNameKyle Higashioka
posC
startedFalse
startingPositionP
teamTEX
teamID28
game_date2026-06-16
sl_k_percent25.8
sl_bb_percent9.4
sl_woba0.314
sl_xwoba0.309
sl_xba0.237
sl_xslg0.382
sl_sweet_spot_percent36.6
sl_barrel_batted_rate11.0
sl_hard_hit_percent37.8
sl_exit_velocity_avg88.0
sl_launch_angle_avg15.5
sl_whiff_percent29.2
sl_swing_percent42.3
Jack Leiter (683004) · PITCHER · Starter · Team TEX
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 14
All-history rows before 20260618: 14

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB2.3572.000-1.357-1.000
predicted_ER2.0002.0002.000Pitching_ER3.0005.000-1.000-3.000
predicted_H5.0005.0005.000Pitching_H5.2868.000-0.286-3.000
predicted_IP5.1005.1005.100Pitching_InningsPitched5.2295.000-0.1290.100
predicted_SO4.0004.0004.000Pitching_SO5.6433.000-1.6431.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 5.3333 -> 5.1000 (deboost -0.2333, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_IP: 5.3333 -> 5.1000 (deboost -0.2333, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "683004",
  "player_name": "Jack Leiter",
  "position": "Starter",
  "team": "TEX",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 2.0,
        "predicted_H": 5.0,
        "predicted_HR": 1.0,
        "predicted_IP": 5.3333,
        "predicted_SO": 4.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 2.0,
        "predicted_H": 5.0,
        "predicted_HR": 1.0,
        "predicted_IP": 5.1,
        "predicted_R": 2.0,
        "predicted_SO": 4.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.3333,
          "after": 5.1,
          "delta": -0.2333,
          "percent_delta": -0.0438,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 5.3333,
          "after": 5.1,
          "delta": -0.2333,
          "percent_delta": -0.0438,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 5.0,
        "after": 5.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 5.3333,
        "after": 5.1,
        "delta": -0.2333,
        "percent_delta": -0.0437,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 4.0,
        "after": 4.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 5.3333,
        "after": 5.1,
        "delta": -0.2333,
        "percent_delta": -0.0437,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER2.000-
predicted_H5.000-
predicted_HR1.000-
predicted_IP5.333-
predicted_SO4.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 14
Reference playing time: 5.333
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.45526.10018.00028.00012.00024.0004.0006.15191.51900.68351.06330.45570.91140.1519
last_100.351055.20031.00053.00024.00055.0009.0005.01201.38320.55690.95210.43110.98800.1617
season0.201476.00042.00074.00033.00079.00012.0004.97371.40790.55260.97370.43421.03950.1579
Weighted Prediction From Real Data
MetricValue
predicted_BB2.2860
predicted_ER3.1620
predicted_ERA5.2517
predicted_H5.4080
predicted_HR0.8330
predicted_IP5.1000
predicted_SO5.1860
predicted_WHIP1.4198
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00002.28601.6929model_form_blend
predicted_ER2.00003.16202.6261model_form_blend
predicted_ERA-5.25175.2517form_only
predicted_H5.00005.40805.2198model_form_blend
predicted_HR1.00000.83300.9100model_form_blend
predicted_IP5.10005.10005.1000model_form_blend
predicted_SO4.00005.18604.6390model_form_blend
predicted_WHIP-1.41981.4198form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date14
Season rows before report date14
Report year2026
Profile rows used14
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP5.1
H5
R2
ER2
BB1
SO4
HR1
BF22
Pitches95

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB2
Pitching_Balk0
Pitching_Batters Faced25
Pitching_ER5
Pitching_ERA4.97
Pitching_Flyouts4
Pitching_Groundouts3
Pitching_H8
Pitching_HBP0
Pitching_HR1
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched5.0
Pitching_Pitches103
Pitching_R6
Pitching_SO3
Pitching_Strikes63
Pitching_Wild Pitch0
Pitching_decisionL
Pitching_pitchingOrder1
allPositionsPlayedP
gameID20260612_TEX@BOS
game_typefull
mlbID683004
playerID683004
playerNameJack Leiter
posP
startedTrue
startingPositionP
teamTEX
teamID28
game_date2026-06-12
sl_k_percent23.6
sl_bb_percent9.9
sl_woba0.332
sl_xwoba0.333
sl_sweet_spot_percent37.0
sl_barrel_batted_rate10.0
sl_hard_hit_percent40.2
sl_whiff_percent25.5
sl_swing_percent47.5
sl_avg_best_speed76.377876881
sl_avg_hyper_speed94.079739358
Jacob Latz (656641) · PITCHER · Middle Reliever · Team TEX
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 26
All-history rows before 20260618: 26

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.2690.000-0.2690.000
predicted_ER1.0001.0001.000Pitching_ER0.2310.0000.7691.000
predicted_H2.0002.0002.000Pitching_H0.5000.0001.5002.000
predicted_IP1.1001.1001.100Pitching_InningsPitched1.2191.100-0.1190.000
predicted_SO0.0000.0000.000Pitching_SO1.3462.000-1.346-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 1.3333 -> 1.1000 (deboost -0.2333, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_IP: 1.3333 -> 1.1000 (deboost -0.2333, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "656641",
  "player_name": "Jacob Latz",
  "position": "Middle Reliever",
  "team": "TEX",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 1.0,
        "predicted_H": 2.0,
        "predicted_HR": 1.0,
        "predicted_IP": 1.3333,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 1.0,
        "predicted_H": 2.0,
        "predicted_HR": 1.0,
        "predicted_IP": 1.1,
        "predicted_R": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.3333,
          "after": 1.1,
          "delta": -0.2333,
          "percent_delta": -0.175,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 1.3333,
          "after": 1.1,
          "delta": -0.2333,
          "percent_delta": -0.175,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.3333,
        "after": 1.1,
        "delta": -0.2333,
        "percent_delta": -0.175,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 1.3333,
        "after": 1.1,
        "delta": -0.2333,
        "percent_delta": -0.175,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER1.000-
predicted_H2.000-
predicted_HR1.000-
predicted_IP1.333-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 25
Reference playing time: 1.333
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4557.1000.0002.0002.00011.0000.0000.00000.54550.00000.27270.27271.50000.0000
last_100.351014.2001.0005.0002.00019.0001.0000.61360.47730.06820.34090.13641.29540.0682
season0.202533.1003.00010.0006.00035.0002.0000.81000.48000.09000.30000.18001.05000.0600
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3650
predicted_ER0.3190
predicted_ERA2.1545
predicted_H0.7880
predicted_HR0.1110
predicted_IP1.1000
predicted_SO1.5550
predicted_WHIP0.8651
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.36500.1709model_form_blend
predicted_ER1.00000.31900.6812model_form_blend
predicted_ERA-2.15452.1545form_only
predicted_H2.00000.78801.4325model_form_blend
predicted_HR1.00000.11100.5838model_form_blend
predicted_IP1.10001.10001.1000model_form_blend
predicted_SO0.00001.55500.7280model_form_blend
predicted_WHIP-0.86510.8651form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date26
Season rows before report date26
Report year2026
Profile rows used25
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.1
H2
R1
ER1
BB0
SO0
HR1
BF6
Pitches13

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER0
Pitching_ERA1.62
Pitching_Flyouts0
Pitching_Groundouts1
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners2
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.1
Pitching_Pitches24
Pitching_R0
Pitching_SO2
Pitching_Strikes15
Pitching_Wild Pitch0
Pitching_decisionS
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260614_TEX@BOS
game_typefull
mlbID656641
playerID656641
playerNameJacob Latz
posP
startedFalse
startingPositionP
teamTEX
teamID28
game_date2026-06-14
sl_k_percent29.2
sl_bb_percent5.8
sl_woba0.173
sl_xwoba0.236
sl_sweet_spot_percent20.5
sl_barrel_batted_rate6.4
sl_hard_hit_percent42.3
sl_whiff_percent29.3
sl_swing_percent48.9
sl_avg_best_speed79.139527949
sl_avg_hyper_speed94.041902564
Jakob Junis (596001) · PITCHER · Middle Reliever · Team TEX
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 25
All-history rows before 20260618: 25

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB0.2000.0000.8001.000
predicted_ER0.0000.0000.000Pitching_ER0.2401.000-0.240-1.000
predicted_H0.0000.0000.000Pitching_H0.7603.000-0.760-3.000
predicted_IP1.0001.0001.000Pitching_InningsPitched1.1080.200-0.1080.800
predicted_SO0.0000.0000.000Pitching_SO0.8401.000-0.840-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "596001",
  "player_name": "Jakob Junis",
  "position": "Middle Reliever",
  "team": "TEX",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 25
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.1002.0007.0000.0008.0000.0003.37501.31250.37501.31250.00001.50000.0000
last_100.351013.0003.00011.0000.00014.0000.0002.07690.84620.23080.84610.00001.07690.0000
season0.202529.1006.00019.0005.00021.0000.0001.84090.81820.20460.64770.17040.71590.0000
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2040
predicted_ER0.4260
predicted_ERA3.4889
predicted_H1.0950
predicted_HR0.0740
predicted_IP1.0000
predicted_SO1.1820
predicted_WHIP1.1829
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00000.20400.6379model_form_blend
predicted_ER0.00000.42600.1938model_form_blend
predicted_ERA-3.48893.4889form_only
predicted_H0.00001.09500.4981model_form_blend
predicted_HR0.00000.07400.0337model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00001.18200.5376model_form_blend
predicted_WHIP-1.18291.1829form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date25
Season rows before report date25
Report year2026
Profile rows used25
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB1
SO0
HR0
BF4
Pitches18

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced5
Pitching_ER1
Pitching_ERA1.84
Pitching_Flyouts0
Pitching_Groundouts1
Pitching_H3
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.2
Pitching_Pitches16
Pitching_R1
Pitching_SO1
Pitching_Strikes11
Pitching_Wild Pitch0
Pitching_decisionH
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260614_TEX@BOS
game_typefull
mlbID596001
playerID596001
playerNameJakob Junis
posP
startedFalse
startingPositionP
teamTEX
teamID28
game_date2026-06-14
sl_k_percent18.6
sl_bb_percent4.4
sl_woba0.213
sl_xwoba0.289
sl_sweet_spot_percent34.5
sl_barrel_batted_rate3.6
sl_hard_hit_percent31.0
sl_whiff_percent18.9
sl_swing_percent47.9
sl_avg_best_speed75.26397119
sl_avg_hyper_speed92.691576429
Cole Winn (668390) · PITCHER · Middle Reliever · Team TEX
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 25
All-history rows before 20260618: 25

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.3200.000-0.3200.000
predicted_ER1.0001.0001.000Pitching_ER0.5602.0000.440-1.000
predicted_H2.0002.0002.000Pitching_H0.9602.0001.0400.000
predicted_IP0.2000.2000.200Pitching_InningsPitched0.7360.200-0.5360.000
predicted_SO1.0001.0001.000Pitching_SO1.0002.0000.000-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 0.6667 -> 0.2000 (deboost -0.4667, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_IP: 0.6667 -> 0.2000 (deboost -0.4667, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "668390",
  "player_name": "Cole Winn",
  "position": "Middle Reliever",
  "team": "TEX",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 1.0,
        "predicted_H": 2.0,
        "predicted_HR": 1.0,
        "predicted_IP": 0.6667,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 1.0,
        "predicted_H": 2.0,
        "predicted_HR": 1.0,
        "predicted_IP": 0.2,
        "predicted_R": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 0.6667,
          "after": 0.2,
          "delta": -0.4667,
          "percent_delta": -0.7,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 0.6667,
          "after": 0.2,
          "delta": -0.4667,
          "percent_delta": -0.7,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 0.6667,
        "after": 0.2,
        "delta": -0.4667,
        "percent_delta": -0.7,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 0.6667,
        "after": 0.2,
        "delta": -0.4667,
        "percent_delta": -0.7,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER1.000-
predicted_H2.000-
predicted_HR1.000-
predicted_IP0.667-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 25
Reference playing time: 0.667
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4553.2004.0004.0001.0003.0000.0009.81821.36361.09091.09090.27270.81820.0000
last_100.35108.0006.00012.0002.0009.0000.0006.75001.75000.75001.50000.25001.12500.0000
season0.202521.20014.00024.0008.00025.0003.0005.81541.47690.64621.10770.36921.15390.1385
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2280
predicted_ER0.4730
predicted_ERA6.0972
predicted_H0.7640
predicted_HR0.0640
predicted_IP0.2000
predicted_SO0.6720
predicted_WHIP1.4224
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.22800.0964model_form_blend
predicted_ER1.00000.47300.7771model_form_blend
predicted_ERA-6.09726.0972form_only
predicted_H2.00000.76401.4773model_form_blend
predicted_HR1.00000.06400.6042model_form_blend
predicted_IP0.20000.20000.2000model_form_blend
predicted_SO1.00000.67200.8613model_form_blend
predicted_WHIP-1.42241.4224form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date25
Season rows before report date25
Report year2026
Profile rows used25
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP0.2
H2
R1
ER1
BB0
SO1
HR1
BF4
Pitches14

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER2
Pitching_ERA5.82
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H2
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.2
Pitching_Pitches18
Pitching_R2
Pitching_SO2
Pitching_Strikes11
Pitching_Wild Pitch0
Pitching_decisionL
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260613_TEX@BOS
game_typefull
mlbID668390
playerID668390
playerNameCole Winn
posP
startedFalse
startingPositionP
teamTEX
teamID28
game_date2026-06-13
sl_k_percent25.5
sl_bb_percent8.2
sl_woba0.33
sl_xwoba0.333
sl_sweet_spot_percent39.1
sl_barrel_batted_rate4.7
sl_hard_hit_percent48.4
sl_whiff_percent27.0
sl_swing_percent52.7
sl_avg_best_speed78.659129375
sl_avg_hyper_speed95.035447344
Tyler Alexander (641302) · PITCHER · Middle Reliever · Team TEX
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 30
All-history rows before 20260618: 30

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.3001.000-0.300-1.000
predicted_ER0.0000.0000.000Pitching_ER0.3330.000-0.3330.000
predicted_H0.0000.0000.000Pitching_H1.1333.000-1.133-3.000
predicted_IP0.2000.2000.200Pitching_InningsPitched0.8602.000-0.660-1.800
predicted_SO2.0002.0002.000Pitching_SO0.7671.0001.2331.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 0.6667 -> 0.2000 (deboost -0.4667, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_IP: 0.6667 -> 0.2000 (deboost -0.4667, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "641302",
  "player_name": "Tyler Alexander",
  "position": "Middle Reliever",
  "team": "TEX",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.6667,
        "predicted_SO": 2.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.2,
        "predicted_R": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 0.6667,
          "after": 0.2,
          "delta": -0.4667,
          "percent_delta": -0.7,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 0.6667,
          "after": 0.2,
          "delta": -0.4667,
          "percent_delta": -0.7,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 0.6667,
        "after": 0.2,
        "delta": -0.4667,
        "percent_delta": -0.7,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 0.6667,
        "after": 0.2,
        "delta": -0.4667,
        "percent_delta": -0.7,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP0.667-
predicted_SO2.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 30
Reference playing time: 0.667
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.1004.0009.0001.0004.0000.0006.75001.87500.75001.68750.18750.75000.0000
last_100.35109.0005.00011.0003.0007.0001.0005.00001.55560.55561.22220.33330.77780.1111
season0.203030.00010.00034.0009.00023.0002.0003.00001.43330.33331.13330.30000.76670.0667
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2610
predicted_ER0.4700
predicted_ERA4.9863
predicted_H1.0290
predicted_HR0.0810
predicted_IP1.0000
predicted_SO0.7150
predicted_WHIP1.5208
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.26100.1193model_form_blend
predicted_ER0.00000.47000.2149model_form_blend
predicted_ERA-4.98634.9863form_only
predicted_H0.00001.02900.4705model_form_blend
predicted_HR0.00000.08100.0370model_form_blend
predicted_IP0.20001.00000.2000model_form_blend
predicted_SO2.00000.71501.4125model_form_blend
predicted_WHIP-1.52081.5208form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date30
Season rows before report date30
Report year2026
Profile rows used30
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP0.2
H0
R0
ER0
BB0
SO2
HR0
BF2
Pitches15

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced9
Pitching_ER0
Pitching_ERA3.00
Pitching_Flyouts1
Pitching_Groundouts3
Pitching_H3
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched2.0
Pitching_Pitches29
Pitching_R0
Pitching_SO1
Pitching_Strikes18
Pitching_Wild Pitch0
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260616_MIN@TEX
game_typefull
mlbID641302
playerID641302
playerNameTyler Alexander
posP
startedFalse
startingPositionP
teamTEX
teamID28
game_date2026-06-16
sl_k_percent17.4
sl_bb_percent7.6
sl_woba0.334
sl_xwoba0.287
sl_sweet_spot_percent24.7
sl_barrel_batted_rate3.1
sl_hard_hit_percent32.0
sl_whiff_percent17.1
sl_swing_percent44.9
sl_avg_best_speed75.575367083
sl_avg_hyper_speed92.981063158

20260618_NYM@PHI

Prediction Method: enhanced_ml_savant_pitcher_quality
Team Recent Window (Home): 65 games
Team Recent Window (Away): 65 games
Team Recent Period: Latest 10 games from dataset
Enhanced Prediction Target: {"away_runs": 4, "home_runs": 3, "confidence": 0.5875159999999999, "home_win_probability": 0.4124840000000001, "away_win_probability": 0.5875159999999999, "predicted_score_text": "NYM 4 - 3 PHI", "embedded_savant_score_adjustment": {"applied": true, "source": "all_players_stats.csv embedded temporal Savant features", "feature_contract": {"training_grain": "one player-game row after collapsing granular at-bat rows", "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game", "hitter_signals": ["xwoba", "xba", "xslg", "barrel_batted_rate", "hard_hit_percent", "bat_speed", "launch_quality", "walk_rate", "strikeout_rate"], "pitcher_signals": ["xwoba_allowed", "barrel_allowed", "hard_hit_allowed", "whiff_rate", "command_score", "movement_score", "faced_est_woba", "faced_strikeout_rate"]}, "away": {"team": "NYM", "original_runs": 4, "run_delta": 0.3946, "adjusted_runs": 4, "lineup": {"players_used": 9, "total_weight": 32.0, "quality": 0.3032506444672032, "contact": 0.43045717309120396, "power": 0.5225215092209028, "discipline": 0.0005393137585181437, "xwoba": 0.33781249999999996, "recent_xwoba": 0.33781249999999996, "barrel": 10.115625000000001, "ab_hard_contact": 0.09810280346567121, "ab_bat_speed": 70.1740461010982, "ab_strikeout_rate": 0.23908124010327053, "available_players": 9, "top_players": [{"player_id": "665742", "player_name": "Juan Soto", "position": "LF", "weight": 4.0, "quality": 1.1457149751960496, "contact": 1.7298817468675898, "power": 1.833503049835101, "discipline": 1.0601667451423549, "xwoba": 0.421, "recent_xwoba": 0.421, "barrel": 15.4, "ab_hard_contact": 0.9272038538448771, "ab_bat_speed": 70.41891355641356, "ab_strikeout_rate": 0.148005148005148, "available": 1.0}, {"player_id": "682626", "player_name": "Francisco Alvarez", "position": "C", "weight": 3.0, "quality": 0.40086161104904194, "contact": 0.528842520704691, "power": 1.1872047896236282, "discipline": -0.239232868757259, "xwoba": 0.3499999999999999, "recent_xwoba": 0.35, "barrel": 16.5, "ab_hard_contact": 0.24314341152019897, "ab_bat_speed": 72.7064484126984, "ab_strikeout_rate": 0.2276190476190476, "available": 1.0}, {"player_id": "701807", "player_name": "Carson Benge", "position": "RF", "weight": 4.0, "quality": 0.4941989456528895, "contact": 0.7083415302965284, "power": 0.5509017001418364, "discipline": -0.15244715447154467, "xwoba": 0.347, "recent_xwoba": 0.347, "barrel": 9.1, "ab_hard_contact": 0.06946257426529759, "ab_bat_speed": 69.1056576984127, "ab_strikeout_rate": 0.22833333333333333, "available": 1.0}, {"player_id": "666182", "player_name": "Bo Bichette", "position": "SS", "weight": 4.0, "quality": 0.5356428870535186, "contact": 0.7874114962904825, "power": 0.38194904730045987, "discipline": 0.0921189830945929, "xwoba": 0.334, "recent_xwoba": 0.334, "barrel": 7.3, "ab_hard_contact": -0.04216191113366639, "ab_bat_speed": 69.04705887579499, "ab_strikeout_rate": 0.16898148148148148, "available": 1.0}, {"player_id": "676724", "player_name": "Jared Young", "position": "1B", "weight": 3.0, "quality": 0.049099243556003355, "contact": 0.41226379145299175, "power": 0.7461739746259634, "discipline": -0.15597096399535415, "xwoba": 0.34, "recent_xwoba": 0.34, "barrel": 12.5, "ab_hard_contact": -0.863568126528353, "ab_bat_speed": 72.63215277777778, "ab_strikeout_rate": 0.2, "available": 1.0}]}, "opposing_starter": {"available": true, "player_id": "605400", "player_name": "Aaron Nola", "quality": -0.2438168006086457, "contact": -0.5723637963574604, "command": 0.09414285714285708, "movement": -0.6056536574253711, "xwoba": 0.327, "whiff": 25.0, "faced_est_woba": 0.267543125, "faced_launch_speed": 83.82962962962962, "faced_strikeout_rate": 0.23125, "faced_run_exp": 0.007916194341372912}}, "home": {"team": "PHI", "original_runs": 3, "run_delta": 0.3392, "adjusted_runs": 3, "lineup": {"players_used": 9, "total_weight": 33.0, "quality": 0.25049940886654565, "contact": 0.24570909611423486, "power": 0.34440503710959625, "discipline": -0.17424920334874164, "xwoba": 0.32678787878787885, "recent_xwoba": 0.32678787878787885, "barrel": 8.9, "ab_hard_contact": 0.309006947098125, "ab_bat_speed": 70.9409869305061, "ab_strikeout_rate": 0.21778473285988098, "available_players": 9, "top_players": [{"player_id": "547180", "player_name": "Bryce Harper", "position": "1B", "weight": 4.0, "quality": 1.2261101872199816, "contact": 1.2368317759808327, "power": 1.3550739665979603, "discipline": 0.7381410455883535, "xwoba": 0.405, "recent_xwoba": 0.405, "barrel": 12.9, "ab_hard_contact": 1.5330983795782456, "ab_bat_speed": 72.87975995807128, "ab_strikeout_rate": 0.18731656184486373, "available": 1.0}, {"player_id": "656941", "player_name": "Kyle Schwarber", "position": "DH", "weight": 4.0, "quality": 0.9841564787726111, "contact": 0.6955229747557998, "power": 1.858740013455598, "discipline": -0.07183176985615997, "xwoba": 0.377, "recent_xwoba": 0.377, "barrel": 20.9, "ab_hard_contact": 0.7159431262548124, "ab_bat_speed": 74.57395451770452, "ab_strikeout_rate": 0.33621794871794874, "available": 1.0}, {"player_id": "607208", "player_name": "Trea Turner", "position": "SS", "weight": 5.0, "quality": -0.40113779891184087, "contact": -0.46429652524419984, "power": -0.4421844611570038, "discipline": -0.43517548169987186, "xwoba": 0.28, "recent_xwoba": 0.28, "barrel": 4.9, "ab_hard_contact": 0.04202506257421076, "ab_bat_speed": 70.81053472222222, "ab_strikeout_rate": 0.21591880341880343, "available": 1.0}, {"player_id": "669016", "player_name": "Brandon Marsh", "position": "RF", "weight": 4.0, "quality": 0.30510232662064235, "contact": 0.6796037550098428, "power": 0.4839075641273435, "discipline": -0.5747600796416126, "xwoba": 0.333, "recent_xwoba": 0.333, "barrel": 7.6, "ab_hard_contact": 0.318151282546871, "ab_bat_speed": 70.35567857142857, "ab_strikeout_rate": 0.2370748299319728, "available": 1.0}, {"player_id": "656537", "player_name": "Derek Hill", "position": "CF", "weight": 3.0, "quality": -0.1420542152063107, "contact": -0.7565400904210483, "power": -0.15573233313949875, "discipline": -1.0080615937956616, "xwoba": 0.282, "recent_xwoba": 0.282, "barrel": 8.9, "ab_hard_contact": -0.06283713898046073, "ab_bat_speed": 65.49069444444444, "ab_strikeout_rate": 0.2553763440860215, "available": 1.0}]}, "opposing_starter": {"available": true, "player_id": "640455", "player_name": "Sean Manaea", "quality": -0.1474280615633922, "contact": -0.3242380664078574, "command": 0.037285714285714276, "movement": -1.1009352118088143, "xwoba": 0.318, "whiff": 22.8, "faced_est_woba": 0.267543125, "faced_launch_speed": 83.82962962962962, "faced_strikeout_rate": 0.23125, "faced_run_exp": 0.007916194341372912}}}, "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Production confidence governor cap enforced.", "pre_simulation_target": {"away_runs": 4, "home_runs": 3, "predicted_score_text": "NYM 4 - 3 PHI", "confidence": 0.5875159999999999, "source": "enhanced_prediction_before_inning_simulation"}, "score_source": "enhanced_prediction.pre_simulation_target", "final_prediction_synced": true, "final_prediction_source": "pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "simulation_score_matches_prediction": false, "simulation_reconciliation": {"pre_simulation_score": {"away_runs": 4, "home_runs": 3, "score_text": "NYM 4 - 3 PHI", "winner": "NYM"}, "final_simulation_score": {"away_runs": 4, "home_runs": 2, "score_text": "NYM 4 - 2 PHI", "winner": "NYM"}, "winner_flipped_by_simulation": false, "away_run_delta": 0, "home_run_delta": -1, "total_run_delta": -1, "score_source": "enhanced_prediction.pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "final_prediction_source": "pre_simulation_target"}}
Factors Considered: Historical team performance, Season-to-date run differential, Recent form (latest 10 games), Head-to-head matchup history, Player-level statistics, Baseball Savant hitter xwOBA/xBA/xSLG/contact quality, Baseball Savant pitcher xwOBA/contact/whiff quality, Recent 10-game performance trends, Pitcher recent form analysis, Team hitting/pitching streaks, Low-score probability modeling, Environmental factors, Home field advantage, Game timing factors, Seasonal adjustments, Machine learning models

Game-Level Prediction Audit

LayerScoreWinnerConfidenceSource or usageSynced or matches
Shipped predictionNYM 4 - 3 PHINYM0.588enhanced_prediction.pre_simulation_targetTrue
Simulation drawNYM 4 - 2 PHINYM-advisory_box_score_drawFalse

The shipped score is the pre-simulation model target. The inning simulation is a separate box-score realization used for player lines and stress testing.

Full Prediction Process

Process LayerWhat It DoesStored FieldObserved Value
1. Historical modelStarts from trained game model output.score_evolution.steps[historical_ml]-
2. Variance layerApplies bounded game variance before enhanced corrections.score_evolution.steps[variance_applied]-
3. Recent/team formUses latest team form, recent scoring, prevention, and streak state.enhanced_prediction_analysis.recent_formTrue
4. Season qualityUses season run differential and record quality guardrails.season_run_differential_adjustment, season_quality_guardrailTrue
5. Savant hittersApplies lineup-level Statcast xwOBA, xBA, xSLG, barrel, hard-hit, sweet-spot, EV, launch-angle, whiff, K and BB quality.savant_batter_quality_adjustmentTrue
6. Savant pitchersApplies starter run prevention, strikeout, walk, HR and regression factors from xwOBA, wOBA, contact quality and whiff/command.savant_pitcher_quality_adjustmentTrue
7. Low-score analysisControls unrealistic totals and preserves the pre-sync low-score expected total.low_score_analysis9.8000
8. Probability/governorsApplies win probability calibration, matchup guardrails, margin governor and confidence governor.win_probability_calibration, margin_governor, confidence_governor0.5875
9. Simulation reconciliationKeeps final shipped score and simulation box score auditable side by side.simulation_reconciliationadvisory_box_score_draw
10. Score evolution rendered6 stored score steps are rendered below.game.score_evolution.stepstrue

Score Evolution Steps

StepLayerAway RunsHome RunsConfidenceDescription
1historical_ml7.3544.686-Base ML historical model prediction
2variance_applied74-Random variance applied (0.9-1.1)
3enhanced_prediction430.5875Enhanced ML with recent form, H2H, low-score analysis
4embedded_savant_run_environment43-Target score adjusted by temporal Savant lineup quality versus opposing starter quality
5capped_target43-Capped at max 12 realistic runs
6simulation_result42-Final inning-by-inning simulation result

Governors, Guardrails, and Reconciliation

Low Score Analysis
{
  "low_score_probability": 0.4238741721854305,
  "base_low_score_probability": 0.4155629139072848,
  "low_score_signal_threshold": 0.5,
  "low_score_signal_strength": 0.008311258278145717,
  "confidence": 0.61,
  "factors": {
    "environmental": 1.02,
    "pitcher_form": 1.0,
    "team_form": 1.0,
    "situational": 1.0,
    "combined": 1.02
  },
  "prediction": "normal_scoring",
  "expected_total_runs": 7,
  "pre_simulation_expected_total_runs": 9.8,
  "low_score_model_expected_total_runs": 9.8,
  "final_simulation_total_runs": 6,
  "score_source": "enhanced_prediction.pre_simulation_target"
}
Win Probability Calibration
{
  "method": "historical_slate_bin_shrinkage",
  "sample_size": 41,
  "near_bucket_sample_size": 41,
  "medium_bucket_sample_size": 153,
  "wide_bucket_sample_size": 242,
  "global_sample_size": 242,
  "bucket_scope": "near_0.05",
  "sparse_bucket": false,
  "empirical_hit_rate": 0.6098,
  "bayesian_hit_rate": 0.5763,
  "sample_weight": 0.5907,
  "prior_strength": 18.0,
  "reliability": 0.6949,
  "confidence_cap": 0.78,
  "raw_pick_probability": 0.6275,
  "calibrated_pick_probability": 0.5875,
  "predicted_side": "away"
}
Season Run Differential Adjustment
{
  "applied": false,
  "home": {
    "team": "PHI",
    "games": 74,
    "wins": 40,
    "losses": 34,
    "win_pct": 0.5405405405405406,
    "runs_scored": 304,
    "runs_allowed": 322,
    "run_differential": -18,
    "run_differential_per_game": -0.24324324324324326,
    "available": true
  },
  "away": {
    "team": "NYM",
    "games": 74,
    "wins": 33,
    "losses": 41,
    "win_pct": 0.44594594594594594,
    "runs_scored": 300,
    "runs_allowed": 317,
    "run_differential": -17,
    "run_differential_per_game": -0.22972972972972974,
    "available": true
  },
  "run_differential_edge_per_game": -0.0135,
  "win_pct_edge": 0.0946,
  "quality_edge": 0.1284,
  "margin_adjustment": 0.0,
  "reason": "season quality edge below action threshold"
}
Matchup Recency Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "predicted_team": "NYM",
    "guardrail_predicted_team": "NYM",
    "guardrail_opponent_team": null,
    "output_pre_simulation_winner": "NYM",
    "output_opponent_team": "PHI",
    "final_score_winner": "NYM",
    "pre_simulation_winner": "NYM",
    "winner_flipped_by_simulation": false
  },
  "final_prediction_sync": {
    "pre_simulation_score": {
      "away_runs": 4,
      "home_runs": 3,
      "score_text": "NYM 4 - 3 PHI",
      "winner": "NYM"
    },
    "final_simulation_score": {
      "away_runs": 4,
      "home_runs": 2,
      "score_text": "NYM 4 - 2 PHI",
      "winner": "NYM"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": 0,
    "home_run_delta": -1,
    "total_run_delta": -1,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}
Season Quality Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "home": {
      "team": "PHI",
      "games": 74,
      "wins": 40,
      "losses": 34,
      "win_pct": 0.5405405405405406,
      "runs_scored": 304,
      "runs_allowed": 322,
      "run_differential": -18,
      "run_differential_per_game": -0.24324324324324326,
      "available": true
    },
    "away": {
      "team": "NYM",
      "games": 74,
      "wins": 33,
      "losses": 41,
      "win_pct": 0.44594594594594594,
      "runs_scored": 300,
      "runs_allowed": 317,
      "run_differential": -17,
      "run_differential_per_game": -0.22972972972972974,
      "available": true
    }
  }
}
Margin Governor
{
  "applied": true,
  "raw_margin": -2.8697,
  "final_margin": -1.5,
  "margin_cap": 1.5,
  "season_quality_edge": 0.1284,
  "reason": "large target margin capped because season quality evidence did not justify a decisive prediction",
  "adjusted_score": {
    "away_runs": 4.279,
    "home_runs": 2.779
  }
}
Confidence Governor
{
  "applied": false,
  "raw_confidence": 0.587516,
  "final_confidence": 0.587516,
  "confidence_cap": 0.63,
  "score_gap": 1.5,
  "calibration_sample_size": 41,
  "calibration_empirical_hit_rate": 0.6098,
  "calibration_bayesian_hit_rate": 0.5763,
  "calibration_sparse_bucket": false,
  "season_quality_edge": 0.1284,
  "reasons": [
    "unvalidated probabilities are capped for production display",
    "projected score gap is moderate",
    "local calibration sample has at least 30 games",
    "win-probability calibration cap enforced"
  ]
}
Simulation Reconciliation
{
  "pre_simulation_score": {
    "away_runs": 4,
    "home_runs": 3,
    "score_text": "NYM 4 - 3 PHI",
    "winner": "NYM"
  },
  "final_simulation_score": {
    "away_runs": 4,
    "home_runs": 2,
    "score_text": "NYM 4 - 2 PHI",
    "winner": "NYM"
  },
  "winner_flipped_by_simulation": false,
  "away_run_delta": 0,
  "home_run_delta": -1,
  "total_run_delta": -1,
  "score_source": "enhanced_prediction.pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "final_prediction_source": "pre_simulation_target"
}
Enhanced Prediction Target
{
  "away_runs": 4,
  "home_runs": 3,
  "confidence": 0.5875159999999999,
  "home_win_probability": 0.4124840000000001,
  "away_win_probability": 0.5875159999999999,
  "predicted_score_text": "NYM 4 - 3 PHI",
  "embedded_savant_score_adjustment": {
    "applied": true,
    "source": "all_players_stats.csv embedded temporal Savant features",
    "feature_contract": {
      "training_grain": "one player-game row after collapsing granular at-bat rows",
      "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game",
      "hitter_signals": [
        "xwoba",
        "xba",
        "xslg",
        "barrel_batted_rate",
        "hard_hit_percent",
        "bat_speed",
        "launch_quality",
        "walk_rate",
        "strikeout_rate"
      ],
      "pitcher_signals": [
        "xwoba_allowed",
        "barrel_allowed",
        "hard_hit_allowed",
        "whiff_rate",
        "command_score",
        "movement_score",
        "faced_est_woba",
        "faced_strikeout_rate"
      ]
    },
    "away": {
      "team": "NYM",
      "original_runs": 4,
      "run_delta": 0.3946,
      "adjusted_runs": 4,
      "lineup": {
        "players_used": 9,
        "total_weight": 32.0,
        "quality": 0.3032506444672032,
        "contact": 0.43045717309120396,
        "power": 0.5225215092209028,
        "discipline": 0.0005393137585181437,
        "xwoba": 0.33781249999999996,
        "recent_xwoba": 0.33781249999999996,
        "barrel": 10.115625000000001,
        "ab_hard_contact": 0.09810280346567121,
        "ab_bat_speed": 70.1740461010982,
        "ab_strikeout_rate": 0.23908124010327053,
        "available_players": 9,
        "top_players": [
          {
            "player_id": "665742",
            "player_name": "Juan Soto",
            "position": "LF",
            "weight": 4.0,
            "quality": 1.1457149751960496,
            "contact": 1.7298817468675898,
            "power": 1.833503049835101,
            "discipline": 1.0601667451423549,
            "xwoba": 0.421,
            "recent_xwoba": 0.421,
            "barrel": 15.4,
            "ab_hard_contact": 0.9272038538448771,
            "ab_bat_speed": 70.41891355641356,
            "ab_strikeout_rate": 0.148005148005148,
            "available": 1.0
          },
          {
            "player_id": "682626",
            "player_name": "Francisco Alvarez",
            "position": "C",
            "weight": 3.0,
            "quality": 0.40086161104904194,
            "contact": 0.528842520704691,
            "power": 1.1872047896236282,
            "discipline": -0.239232868757259,
            "xwoba": 0.3499999999999999,
            "recent_xwoba": 0.35,
            "barrel": 16.5,
            "ab_hard_contact": 0.24314341152019897,
            "ab_bat_speed": 72.7064484126984,
            "ab_strikeout_rate": 0.2276190476190476,
            "available": 1.0
          },
          {
            "player_id": "701807",
            "player_name": "Carson Benge",
            "position": "RF",
            "weight": 4.0,
            "quality": 0.4941989456528895,
            "contact": 0.7083415302965284,
            "power": 0.5509017001418364,
            "discipline": -0.15244715447154467,
            "xwoba": 0.347,
            "recent_xwoba": 0.347,
            "barrel": 9.1,
            "ab_hard_contact": 0.06946257426529759,
            "ab_bat_speed": 69.1056576984127,
            "ab_strikeout_rate": 0.22833333333333333,
            "available": 1.0
          },
          {
            "player_id": "666182",
            "player_name": "Bo Bichette",
            "position": "SS",
            "weight": 4.0,
            "quality": 0.5356428870535186,
            "contact": 0.7874114962904825,
            "power": 0.38194904730045987,
            "discipline": 0.0921189830945929,
            "xwoba": 0.334,
            "recent_xwoba": 0.334,
            "barrel": 7.3,
            "ab_hard_contact": -0.04216191113366639,
            "ab_bat_speed": 69.04705887579499,
            "ab_strikeout_rate": 0.16898148148148148,
            "available": 1.0
          },
          {
            "player_id": "676724",
            "player_name": "Jared Young",
            "position": "1B",
            "weight": 3.0,
            "quality": 0.049099243556003355,
            "contact": 0.41226379145299175,
            "power": 0.7461739746259634,
            "discipline": -0.15597096399535415,
            "xwoba": 0.34,
            "recent_xwoba": 0.34,
            "barrel": 12.5,
            "ab_hard_contact": -0.863568126528353,
            "ab_bat_speed": 72.63215277777778,
            "ab_strikeout_rate": 0.2,
            "available": 1.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "605400",
        "player_name": "Aaron Nola",
        "quality": -0.2438168006086457,
        "contact": -0.5723637963574604,
        "command": 0.09414285714285708,
        "movement": -0.6056536574253711,
        "xwoba": 0.327,
        "whiff": 25.0,
        "faced_est_woba": 0.267543125,
        "faced_launch_speed": 83.82962962962962,
        "faced_strikeout_rate": 0.23125,
        "faced_run_exp": 0.007916194341372912
      }
    },
    "home": {
      "team": "PHI",
      "original_runs": 3,
      "run_delta": 0.3392,
      "adjusted_runs": 3,
      "lineup": {
        "players_used": 9,
        "total_weight": 33.0,
        "quality": 0.25049940886654565,
        "contact": 0.24570909611423486,
        "power": 0.34440503710959625,
        "discipline": -0.17424920334874164,
        "xwoba": 0.32678787878787885,
        "recent_xwoba": 0.32678787878787885,
        "barrel": 8.9,
        "ab_hard_contact": 0.309006947098125,
        "ab_bat_speed": 70.9409869305061,
        "ab_strikeout_rate": 0.21778473285988098,
        "available_players": 9,
        "top_players": [
          {
            "player_id": "547180",
            "player_name": "Bryce Harper",
            "position": "1B",
            "weight": 4.0,
            "quality": 1.2261101872199816,
            "contact": 1.2368317759808327,
            "power": 1.3550739665979603,
            "discipline": 0.7381410455883535,
            "xwoba": 0.405,
            "recent_xwoba": 0.405,
            "barrel": 12.9,
            "ab_hard_contact": 1.5330983795782456,
            "ab_bat_speed": 72.87975995807128,
            "ab_strikeout_rate": 0.18731656184486373,
            "available": 1.0
          },
          {
            "player_id": "656941",
            "player_name": "Kyle Schwarber",
            "position": "DH",
            "weight": 4.0,
            "quality": 0.9841564787726111,
            "contact": 0.6955229747557998,
            "power": 1.858740013455598,
            "discipline": -0.07183176985615997,
            "xwoba": 0.377,
            "recent_xwoba": 0.377,
            "barrel": 20.9,
            "ab_hard_contact": 0.7159431262548124,
            "ab_bat_speed": 74.57395451770452,
            "ab_strikeout_rate": 0.33621794871794874,
            "available": 1.0
          },
          {
            "player_id": "607208",
            "player_name": "Trea Turner",
            "position": "SS",
            "weight": 5.0,
            "quality": -0.40113779891184087,
            "contact": -0.46429652524419984,
            "power": -0.4421844611570038,
            "discipline": -0.43517548169987186,
            "xwoba": 0.28,
            "recent_xwoba": 0.28,
            "barrel": 4.9,
            "ab_hard_contact": 0.04202506257421076,
            "ab_bat_speed": 70.81053472222222,
            "ab_strikeout_rate": 0.21591880341880343,
            "available": 1.0
          },
          {
            "player_id": "669016",
            "player_name": "Brandon Marsh",
            "position": "RF",
            "weight": 4.0,
            "quality": 0.30510232662064235,
            "contact": 0.6796037550098428,
            "power": 0.4839075641273435,
            "discipline": -0.5747600796416126,
            "xwoba": 0.333,
            "recent_xwoba": 0.333,
            "barrel": 7.6,
            "ab_hard_contact": 0.318151282546871,
            "ab_bat_speed": 70.35567857142857,
            "ab_strikeout_rate": 0.2370748299319728,
            "available": 1.0
          },
          {
            "player_id": "656537",
            "player_name": "Derek Hill",
            "position": "CF",
            "weight": 3.0,
            "quality": -0.1420542152063107,
            "contact": -0.7565400904210483,
            "power": -0.15573233313949875,
            "discipline": -1.0080615937956616,
            "xwoba": 0.282,
            "recent_xwoba": 0.282,
            "barrel": 8.9,
            "ab_hard_contact": -0.06283713898046073,
            "ab_bat_speed": 65.49069444444444,
            "ab_strikeout_rate": 0.2553763440860215,
            "available": 1.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "640455",
        "player_name": "Sean Manaea",
        "quality": -0.1474280615633922,
        "contact": -0.3242380664078574,
        "command": 0.037285714285714276,
        "movement": -1.1009352118088143,
        "xwoba": 0.318,
        "whiff": 22.8,
        "faced_est_woba": 0.267543125,
        "faced_launch_speed": 83.82962962962962,
        "faced_strikeout_rate": 0.23125,
        "faced_run_exp": 0.007916194341372912
      }
    }
  },
  "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Production confidence governor cap enforced.",
  "pre_simulation_target": {
    "away_runs": 4,
    "home_runs": 3,
    "predicted_score_text": "NYM 4 - 3 PHI",
    "confidence": 0.5875159999999999,
    "source": "enhanced_prediction_before_inning_simulation"
  },
  "score_source": "enhanced_prediction.pre_simulation_target",
  "final_prediction_synced": true,
  "final_prediction_source": "pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "simulation_score_matches_prediction": false,
  "simulation_reconciliation": {
    "pre_simulation_score": {
      "away_runs": 4,
      "home_runs": 3,
      "score_text": "NYM 4 - 3 PHI",
      "winner": "NYM"
    },
    "final_simulation_score": {
      "away_runs": 4,
      "home_runs": 2,
      "score_text": "NYM 4 - 2 PHI",
      "winner": "NYM"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": 0,
    "home_run_delta": -1,
    "total_run_delta": -1,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}

Savant Batter Quality

Source: data/all_players_stats.csv embedded Savant hitter features. It adjusts team offense through expected production and contact quality, then records coverage so missing hitters are visible.

TeamAppliedOffense FactorRaw Avg FactorCoverage WeightCoveredMissing
Away NYMTrue1.03701.0370190
Home PHITrue1.03321.0332190

Away Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
1BJared Young1881.02500.3331neutral0.34000.24600.447012.5046.9090.309.3026.6020.907.700.4000
SSBo Bichette2801.05980.7972positive_batter_regression0.33400.28700.43607.3045.3090.707.9017.5017.306.201
RFCarson Benge1591.06810.9081positive_batter_regression0.34700.28400.45409.1043.2090.1011.4021.5021.606.701.1143
LFJuan Soto461.09771.3028neutral0.42100.30300.612015.4049.7093.1015.7020.8013.5013.900.5429
CFA.J. Ewing1411.01330.1779neutral0.32900.26500.38905.1039.2088.6012.6023.8029.9011.200.4571
3BBrett Baty2500.9968-0.0432neutral0.29600.22800.36007.3038.7089.209.4028.2028.2090.3714
2BMarcus Semien4721.03810.5083positive_batter_regression0.32500.26000.42808.7034.9086.2018.502321.107.501.2571
DHMJ Melendez3670.9874-0.1674negative_batter_regression0.27600.16400.310010.8055.4093.9023.9034.4033.9011-1.0571
CFrancisco Alvarez3881.04710.6282neutral0.35000.26000.476016.5043.7090.609.4029.5022.608.400.7429

Home Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
3BAlec Bohm5151.00330.0442neutral0.29800.24800.36704.6040.6089.7010.3016.9014.306.500.3429
1BBryce Harper931.12771.7031positive_batter_regression0.40500.28400.544012.9044.609012.1030.1018.9015.301.1429
DHKyle Schwarber551.10611.4150neutral0.37700.24000.522020.9050.909321.9034.4034.5014.40-0.5429
SSTrea Turner4460.9772-0.3042neutral0.28000.23300.34704.9038.2088.609.9027.9022.606.300.2571
RFBrandon Marsh481.03840.5117negative_batter_regression0.33300.28900.44807.6046.8090.101324.9024.404.90-1.0571
LFEdmundo Sosa3061.02040.2718positive_batter_regression0.32900.28200.44606.9039.1086.709.6025.4021.702.501.3143
CJ.T. Realmuto2111.01810.2413positive_batter_regression0.32100.25100.39505.4039.5089.1010.2024.30207.601.2857
2BBryson Stott3301.01830.2442neutral0.31200.25400.40207.2040.7089.6015.7017.2016.8070.3143
CFDerek Hill3910.9896-0.1385neutral0.28200.21900.35008.9033.3089.9015.3037.6034.307.10-0.0857
Raw Savant Batter Quality JSON
{
  "home": {
    "applied": true,
    "offense_factor": 1.0332,
    "raw_average_factor": 1.0332,
    "team_espn_average_rank": 266.11,
    "coverage_weight": 1.0,
    "covered_batters": 9,
    "missing_batters": 0,
    "players": [
      {
        "position": "3B",
        "player_id": "664761",
        "player_name": "Alec Bohm",
        "offense_factor": 1.0033,
        "quality_score": 0.0442,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "664761",
          "espn_id": 41169,
          "player_name": "Alec Bohm",
          "team": "PHI",
          "role": "batter",
          "espn_rank": 515,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 515,
            "gp_value": 70.0,
            "gp_rank": 72,
            "ab_value": 255.0,
            "ab_rank": 78,
            "r_value": 22.0,
            "r_rank": 191,
            "h_value": 58.0,
            "h_rank": 107,
            "avg_value": 0.2274509,
            "avg_rank": 132.0,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 9.0,
            "hr_rank": 84,
            "rbi_value": 39.0,
            "rbi_rank": 46,
            "tb_value": 94.0,
            "tb_rank": 901,
            "bb_value": 18.0,
            "bb_rank": 174,
            "so_value": 40.0,
            "so_rank": 193,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.2795698,
            "obp_rank": "149",
            "slg_value": 0.3686274,
            "slg_rank": "124",
            "ops_value": 0.6481972,
            "ops_rank": 273.0,
            "war_value": -0.45,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 204.0,
          "k_percent": 14.3,
          "bb_percent": 6.5,
          "woba": 0.286,
          "xwoba": 0.298,
          "xba": 0.248,
          "xslg": 0.367,
          "sweet_spot_percent": 35.6,
          "barrel_batted_rate": 4.6,
          "hard_hit_percent": 40.6,
          "exit_velocity_avg": 89.7,
          "launch_angle_avg": 10.3,
          "whiff_percent": 16.9,
          "swing_percent": 44.1
        },
        "components": {
          "expected_quality": -0.0004,
          "regression_edge": 0.3429,
          "xwoba_edge": -0.1714,
          "xba_edge": 0.2714,
          "xslg_edge": -0.0714,
          "barrel_edge": -0.4889,
          "hard_hit_edge": 0.3,
          "exit_velocity_edge": 0.36,
          "sweet_spot_edge": 0.3833,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "1B",
        "player_id": "547180",
        "player_name": "Bryce Harper",
        "offense_factor": 1.1277,
        "quality_score": 1.7031,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "547180",
          "espn_id": 30951,
          "player_name": "Bryce Harper",
          "team": "PHI",
          "role": "batter",
          "espn_rank": 93,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 93,
            "gp_value": 74.0,
            "gp_rank": 13,
            "ab_value": 255.0,
            "ab_rank": 78,
            "r_value": 48.0,
            "r_rank": 13,
            "h_value": 64.0,
            "h_rank": 79,
            "avg_value": 0.2509803,
            "avg_rank": 85.0,
            "2b_value": 12.0,
            "2b_rank": 80,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 15.0,
            "hr_rank": 23,
            "rbi_value": 40.0,
            "rbi_rank": 41,
            "tb_value": 123.0,
            "tb_rank": 372,
            "bb_value": 47.0,
            "bb_rank": 9,
            "so_value": 58.0,
            "so_rank": 91,
            "sb_value": 5.0,
            "sb_rank": 94,
            "obp_value": 0.3615635,
            "obp_rank": "39",
            "slg_value": 0.4823529,
            "slg_rank": "37",
            "ops_value": 0.8439164,
            "ops_rank": 76.0,
            "war_value": 1.31,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 227.0,
          "k_percent": 18.9,
          "bb_percent": 15.3,
          "woba": 0.365,
          "xwoba": 0.405,
          "xba": 0.284,
          "xslg": 0.544,
          "sweet_spot_percent": 37.6,
          "barrel_batted_rate": 12.9,
          "hard_hit_percent": 44.6,
          "exit_velocity_avg": 90.0,
          "launch_angle_avg": 12.1,
          "whiff_percent": 30.1,
          "swing_percent": 50.3
        },
        "components": {
          "expected_quality": 1.7943,
          "regression_edge": 1.1429,
          "xwoba_edge": 2.5,
          "xba_edge": 1.3,
          "xslg_edge": 2.4571,
          "barrel_edge": 1.3556,
          "hard_hit_edge": 0.8714,
          "exit_velocity_edge": 0.48,
          "sweet_spot_edge": 0.7167,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "DH",
        "player_id": "656941",
        "player_name": "Kyle Schwarber",
        "offense_factor": 1.1061,
        "quality_score": 1.415,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "656941",
          "espn_id": 33712,
          "player_name": "Kyle Schwarber",
          "team": "PHI",
          "role": "batter",
          "espn_rank": 55,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 55,
            "gp_value": 71.0,
            "gp_rank": 49,
            "ab_value": 269.0,
            "ab_rank": 39,
            "r_value": 44.0,
            "r_rank": 33,
            "h_value": 66.0,
            "h_rank": 67,
            "avg_value": 0.2453531,
            "avg_rank": 100.0,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 25.0,
            "hr_rank": 1,
            "rbi_value": 43.0,
            "rbi_rank": 27,
            "tb_value": 152.0,
            "tb_rank": 362,
            "bb_value": 46.0,
            "bb_rank": 10,
            "so_value": 110.0,
            "so_rank": 1,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3636363,
            "obp_rank": "36",
            "slg_value": 0.5650557,
            "slg_rank": "4",
            "ops_value": 0.928692,
            "ops_rank": 32.0,
            "war_value": 1.95,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 238.0,
          "k_percent": 34.5,
          "bb_percent": 14.4,
          "woba": 0.396,
          "xwoba": 0.377,
          "xba": 0.24,
          "xslg": 0.522,
          "sweet_spot_percent": 39.6,
          "barrel_batted_rate": 20.9,
          "hard_hit_percent": 50.9,
          "exit_velocity_avg": 93.0,
          "launch_angle_avg": 21.9,
          "whiff_percent": 34.4,
          "swing_percent": 43.9
        },
        "components": {
          "expected_quality": 1.7337,
          "regression_edge": -0.5429,
          "xwoba_edge": 2.0857,
          "xba_edge": 0.0429,
          "xslg_edge": 2.1429,
          "barrel_edge": 2.5,
          "hard_hit_edge": 1.7714,
          "exit_velocity_edge": 1.68,
          "sweet_spot_edge": 1.05,
          "launch_angle_hr_bonus": 0.45
        }
      },
      {
        "position": "SS",
        "player_id": "607208",
        "player_name": "Trea Turner",
        "offense_factor": 0.9772,
        "quality_score": -0.3042,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "607208",
          "espn_id": 33710,
          "player_name": "Trea Turner",
          "team": "PHI",
          "role": "batter",
          "espn_rank": 446,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 446,
            "gp_value": 72.0,
            "gp_rank": 37,
            "ab_value": 296.0,
            "ab_rank": 5,
            "r_value": 42.0,
            "r_rank": 41,
            "h_value": 66.0,
            "h_rank": 67,
            "avg_value": 0.2229729,
            "avg_rank": 141.0,
            "2b_value": 12.0,
            "2b_rank": 80,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 21.0,
            "rbi_rank": 194,
            "tb_value": 99.0,
            "tb_rank": 892,
            "bb_value": 20.0,
            "bb_rank": 146,
            "so_value": 72.0,
            "so_rank": 42,
            "sb_value": 15.0,
            "sb_rank": 10,
            "obp_value": 0.2735849,
            "obp_rank": "156",
            "slg_value": 0.3344594,
            "slg_rank": "142",
            "ops_value": 0.6080443,
            "ops_rank": 14.0,
            "war_value": -0.19,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 239.0,
          "k_percent": 22.6,
          "bb_percent": 6.3,
          "woba": 0.271,
          "xwoba": 0.28,
          "xba": 0.233,
          "xslg": 0.347,
          "sweet_spot_percent": 32.9,
          "barrel_batted_rate": 4.9,
          "hard_hit_percent": 38.2,
          "exit_velocity_avg": 88.6,
          "launch_angle_avg": 9.9,
          "whiff_percent": 27.9,
          "swing_percent": 51.7
        },
        "components": {
          "expected_quality": -0.3955,
          "regression_edge": 0.2571,
          "xwoba_edge": -0.6857,
          "xba_edge": -0.1571,
          "xslg_edge": -0.3571,
          "barrel_edge": -0.4222,
          "hard_hit_edge": -0.0429,
          "exit_velocity_edge": -0.08,
          "sweet_spot_edge": -0.0667,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "RF",
        "player_id": "669016",
        "player_name": "Brandon Marsh",
        "offense_factor": 1.0384,
        "quality_score": 0.5117,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "669016",
          "espn_id": 40803,
          "player_name": "Brandon Marsh",
          "team": "PHI",
          "role": "batter",
          "espn_rank": 48,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 48,
            "gp_value": 69.0,
            "gp_rank": 83,
            "ab_value": 248.0,
            "ab_rank": 94,
            "r_value": 39.0,
            "r_rank": 57,
            "h_value": 80.0,
            "h_rank": 9,
            "avg_value": 0.3225806,
            "avg_rank": 5.0,
            "2b_value": 13.0,
            "2b_rank": 61,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 9.0,
            "hr_rank": 84,
            "rbi_value": 35.0,
            "rbi_rank": 73,
            "tb_value": 124.0,
            "tb_rank": 356,
            "bb_value": 13.0,
            "bb_rank": 237,
            "so_value": 65.0,
            "so_rank": 61,
            "sb_value": 7.0,
            "sb_rank": 62,
            "obp_value": 0.3571428,
            "obp_rank": "44",
            "slg_value": 0.5,
            "slg_rank": "29",
            "ops_value": 0.8571428,
            "ops_rank": 15.0,
            "war_value": 2.03,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 188.0,
          "k_percent": 24.4,
          "bb_percent": 4.9,
          "woba": 0.37,
          "xwoba": 0.333,
          "xba": 0.289,
          "xslg": 0.448,
          "sweet_spot_percent": 46.2,
          "barrel_batted_rate": 7.6,
          "hard_hit_percent": 46.8,
          "exit_velocity_avg": 90.1,
          "launch_angle_avg": 13.0,
          "whiff_percent": 24.9,
          "swing_percent": 53.3
        },
        "components": {
          "expected_quality": 0.8684,
          "regression_edge": -1.0571,
          "xwoba_edge": 0.8286,
          "xba_edge": 1.4429,
          "xslg_edge": 1.0857,
          "barrel_edge": 0.1778,
          "hard_hit_edge": 1.1857,
          "exit_velocity_edge": 0.52,
          "sweet_spot_edge": 2.15,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "LF",
        "player_id": "624641",
        "player_name": "Edmundo Sosa",
        "offense_factor": 1.0204,
        "quality_score": 0.2718,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "624641",
          "espn_id": 33809,
          "player_name": "Edmundo Sosa",
          "team": "PHI",
          "role": "batter",
          "espn_rank": 306,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 306,
            "gp_value": 41.0,
            "gp_rank": 296,
            "ab_value": 111.0,
            "ab_rank": 299,
            "r_value": 15.0,
            "r_rank": 272,
            "h_value": 26.0,
            "h_rank": 288,
            "avg_value": 0.2342342,
            "avg_rank": null,
            "2b_value": 4.0,
            "2b_rank": 307,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 4.0,
            "hr_rank": 203,
            "rbi_value": 18.0,
            "rbi_rank": 231,
            "tb_value": 42.0,
            "tb_rank": 1592,
            "bb_value": 3.0,
            "bb_rank": 423,
            "so_value": 26.0,
            "so_rank": 301,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.2689075,
            "obp_rank": "-",
            "slg_value": 0.3783783,
            "slg_rank": "-",
            "ops_value": 0.6472858,
            "ops_rank": null,
            "war_value": 0.08,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 89.0,
          "k_percent": 21.7,
          "bb_percent": 2.5,
          "woba": 0.283,
          "xwoba": 0.329,
          "xba": 0.282,
          "xslg": 0.446,
          "sweet_spot_percent": 34.5,
          "barrel_batted_rate": 6.9,
          "hard_hit_percent": 39.1,
          "exit_velocity_avg": 86.7,
          "launch_angle_avg": 9.6,
          "whiff_percent": 25.4,
          "swing_percent": 60.6
        },
        "components": {
          "expected_quality": 0.4883,
          "regression_edge": 1.3143,
          "xwoba_edge": 0.7143,
          "xba_edge": 1.2429,
          "xslg_edge": 1.0571,
          "barrel_edge": 0.0222,
          "hard_hit_edge": 0.0857,
          "exit_velocity_edge": -0.84,
          "sweet_spot_edge": 0.2,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "C",
        "player_id": "592663",
        "player_name": "J.T. Realmuto",
        "offense_factor": 1.0181,
        "quality_score": 0.2413,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "592663",
          "espn_id": 32177,
          "player_name": "J.T. Realmuto",
          "team": "PHI",
          "role": "batter",
          "espn_rank": 211,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 211,
            "gp_value": 50.0,
            "gp_rank": 239,
            "ab_value": 165.0,
            "ab_rank": 213,
            "r_value": 16.0,
            "r_rank": 254,
            "h_value": 34.0,
            "h_rank": 240,
            "avg_value": 0.2060606,
            "avg_rank": null,
            "2b_value": 4.0,
            "2b_rank": 307,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 5.0,
            "hr_rank": 184,
            "rbi_value": 17.0,
            "rbi_rank": 244,
            "tb_value": 53.0,
            "tb_rank": 1487,
            "bb_value": 14.0,
            "bb_rank": 215,
            "so_value": 37.0,
            "so_rank": 218,
            "sb_value": 3.0,
            "sb_rank": 148,
            "obp_value": 0.2864864,
            "obp_rank": "-",
            "slg_value": 0.3212121,
            "slg_rank": "-",
            "ops_value": 0.6076985,
            "ops_rank": null,
            "war_value": 0.47,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 130.0,
          "k_percent": 20.0,
          "bb_percent": 7.6,
          "woba": 0.276,
          "xwoba": 0.321,
          "xba": 0.251,
          "xslg": 0.395,
          "sweet_spot_percent": 34.1,
          "barrel_batted_rate": 5.4,
          "hard_hit_percent": 39.5,
          "exit_velocity_avg": 89.1,
          "launch_angle_avg": 10.2,
          "whiff_percent": 24.3,
          "swing_percent": 47.8
        },
        "components": {
          "expected_quality": 0.2655,
          "regression_edge": 1.2857,
          "xwoba_edge": 0.4857,
          "xba_edge": 0.3571,
          "xslg_edge": 0.3286,
          "barrel_edge": -0.3111,
          "hard_hit_edge": 0.1429,
          "exit_velocity_edge": 0.12,
          "sweet_spot_edge": 0.1333,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "2B",
        "player_id": "681082",
        "player_name": "Bryson Stott",
        "offense_factor": 1.0183,
        "quality_score": 0.2442,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "681082",
          "espn_id": 42417,
          "player_name": "Bryson Stott",
          "team": "PHI",
          "role": "batter",
          "espn_rank": 330,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 330,
            "gp_value": 68.0,
            "gp_rank": 104,
            "ab_value": 234.0,
            "ab_rank": 111,
            "r_value": 22.0,
            "r_rank": 191,
            "h_value": 55.0,
            "h_rank": 121,
            "avg_value": 0.2350427,
            "avg_rank": 116.0,
            "2b_value": 13.0,
            "2b_rank": 61,
            "3b_value": 3.0,
            "3b_rank": 7,
            "hr_value": 6.0,
            "hr_rank": 156,
            "rbi_value": 35.0,
            "rbi_rank": 73,
            "tb_value": 92.0,
            "tb_rank": 664,
            "bb_value": 18.0,
            "bb_rank": 174,
            "so_value": 43.0,
            "so_rank": 171,
            "sb_value": 13.0,
            "sb_rank": 16,
            "obp_value": 0.2913385,
            "obp_rank": "145",
            "slg_value": 0.3931623,
            "slg_rank": "111",
            "ops_value": 0.6845008,
            "ops_rank": 34.0,
            "war_value": 0.03,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 182.0,
          "k_percent": 16.8,
          "bb_percent": 7.0,
          "woba": 0.301,
          "xwoba": 0.312,
          "xba": 0.254,
          "xslg": 0.402,
          "sweet_spot_percent": 33.5,
          "barrel_batted_rate": 7.2,
          "hard_hit_percent": 40.7,
          "exit_velocity_avg": 89.6,
          "launch_angle_avg": 15.7,
          "whiff_percent": 17.2,
          "swing_percent": 43.4
        },
        "components": {
          "expected_quality": 0.292,
          "regression_edge": 0.3143,
          "xwoba_edge": 0.2286,
          "xba_edge": 0.4429,
          "xslg_edge": 0.4286,
          "barrel_edge": 0.0889,
          "hard_hit_edge": 0.3143,
          "exit_velocity_edge": 0.32,
          "sweet_spot_edge": 0.0333,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "CF",
        "player_id": "656537",
        "player_name": "Derek Hill",
        "offense_factor": 0.9896,
        "quality_score": -0.1385,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "656537",
          "espn_id": 33721,
          "player_name": "Derek Hill",
          "team": "PHI",
          "role": "batter",
          "espn_rank": 391,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 391,
            "gp_value": 55.0,
            "gp_rank": 204,
            "ab_value": 89.0,
            "ab_rank": 344,
            "r_value": 12.0,
            "r_rank": 310,
            "h_value": 19.0,
            "h_rank": 345,
            "avg_value": 0.2134831,
            "avg_rank": null,
            "2b_value": 1.0,
            "2b_rank": 430,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 4.0,
            "hr_rank": 203,
            "rbi_value": 8.0,
            "rbi_rank": 346,
            "tb_value": 32.0,
            "tb_rank": 1772,
            "bb_value": 7.0,
            "bb_rank": 333,
            "so_value": 34.0,
            "so_rank": 240,
            "sb_value": 7.0,
            "sb_rank": 62,
            "obp_value": 0.2783505,
            "obp_rank": "-",
            "slg_value": 0.3595505,
            "slg_rank": "-",
            "ops_value": 0.637901,
            "ops_rank": null,
            "war_value": -0.09,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 62.0,
          "k_percent": 34.3,
          "bb_percent": 7.1,
          "woba": 0.285,
          "xwoba": 0.282,
          "xba": 0.219,
          "xslg": 0.35,
          "sweet_spot_percent": 33.3,
          "barrel_batted_rate": 8.9,
          "hard_hit_percent": 33.3,
          "exit_velocity_avg": 89.9,
          "launch_angle_avg": 15.3,
          "whiff_percent": 37.6,
          "swing_percent": 51.8
        },
        "components": {
          "expected_quality": -0.344,
          "regression_edge": -0.0857,
          "xwoba_edge": -0.6286,
          "xba_edge": -0.5571,
          "xslg_edge": -0.3143,
          "barrel_edge": 0.4667,
          "hard_hit_edge": -0.7429,
          "exit_velocity_edge": 0.44,
          "sweet_spot_edge": 0.0,
          "launch_angle_hr_bonus": 0.2
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "away": {
    "applied": true,
    "offense_factor": 1.037,
    "raw_average_factor": 1.037,
    "team_espn_average_rank": 254.56,
    "coverage_weight": 1.0,
    "covered_batters": 9,
    "missing_batters": 0,
    "players": [
      {
        "position": "1B",
        "player_id": "676724",
        "player_name": "Jared Young",
        "offense_factor": 1.025,
        "quality_score": 0.3331,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "676724",
          "espn_id": 41575,
          "player_name": "Jared Young",
          "team": "NYM",
          "role": "batter",
          "espn_rank": 188,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 188,
            "gp_value": 30.0,
            "gp_rank": 359,
            "ab_value": 82.0,
            "ab_rank": 358,
            "r_value": 10.0,
            "r_rank": 341,
            "h_value": 20.0,
            "h_rank": 336,
            "avg_value": 0.2439024,
            "avg_rank": null,
            "2b_value": 4.0,
            "2b_rank": 307,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 4.0,
            "hr_rank": 203,
            "rbi_value": 10.0,
            "rbi_rank": 319,
            "tb_value": 36.0,
            "tb_rank": 1640,
            "bb_value": 7.0,
            "bb_rank": 333,
            "so_value": 19.0,
            "so_rank": 360,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3076923,
            "obp_rank": "-",
            "slg_value": 0.4390243,
            "slg_rank": "-",
            "ops_value": 0.7467166,
            "ops_rank": null,
            "war_value": 0.57,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 25.0,
          "k_percent": 20.9,
          "bb_percent": 7.7,
          "woba": 0.326,
          "xwoba": 0.34,
          "xba": 0.246,
          "xslg": 0.447,
          "sweet_spot_percent": 26.6,
          "barrel_batted_rate": 12.5,
          "hard_hit_percent": 46.9,
          "exit_velocity_avg": 90.3,
          "launch_angle_avg": 9.3,
          "whiff_percent": 26.6,
          "swing_percent": 47.7
        },
        "components": {
          "expected_quality": 0.7955,
          "regression_edge": 0.4,
          "xwoba_edge": 1.0286,
          "xba_edge": 0.2143,
          "xslg_edge": 1.0714,
          "barrel_edge": 1.2667,
          "hard_hit_edge": 1.2,
          "exit_velocity_edge": 0.6,
          "sweet_spot_edge": -1.1167,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "SS",
        "player_id": "666182",
        "player_name": "Bo Bichette",
        "offense_factor": 1.0598,
        "quality_score": 0.7972,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "666182",
          "espn_id": 38904,
          "player_name": "Bo Bichette",
          "team": "NYM",
          "role": "batter",
          "espn_rank": 280,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 280,
            "gp_value": 74.0,
            "gp_rank": 13,
            "ab_value": 299.0,
            "ab_rank": 3,
            "r_value": 39.0,
            "r_rank": 57,
            "h_value": 76.0,
            "h_rank": 24,
            "avg_value": 0.2541806,
            "avg_rank": 78.0,
            "2b_value": 11.0,
            "2b_rank": 110,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 8.0,
            "hr_rank": 98,
            "rbi_value": 42.0,
            "rbi_rank": 31,
            "tb_value": 113.0,
            "tb_rank": 572,
            "bb_value": 20.0,
            "bb_rank": 146,
            "so_value": 56.0,
            "so_rank": 99,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.2993827,
            "obp_rank": "135",
            "slg_value": 0.3779264,
            "slg_rank": "119",
            "ops_value": 0.6773091,
            "ops_rank": 16.0,
            "war_value": 0.17,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 241.0,
          "k_percent": 17.3,
          "bb_percent": 6.2,
          "woba": 0.299,
          "xwoba": 0.334,
          "xba": 0.287,
          "xslg": 0.436,
          "sweet_spot_percent": 35.2,
          "barrel_batted_rate": 7.3,
          "hard_hit_percent": 45.3,
          "exit_velocity_avg": 90.7,
          "launch_angle_avg": 7.9,
          "whiff_percent": 17.5,
          "swing_percent": 53.4
        },
        "components": {
          "expected_quality": 0.7642,
          "regression_edge": 1.0,
          "xwoba_edge": 0.8571,
          "xba_edge": 1.3857,
          "xslg_edge": 0.9143,
          "barrel_edge": 0.1111,
          "hard_hit_edge": 0.9714,
          "exit_velocity_edge": 0.76,
          "sweet_spot_edge": 0.3167,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "RF",
        "player_id": "701807",
        "player_name": "Carson Benge",
        "offense_factor": 1.0681,
        "quality_score": 0.9081,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "701807",
          "espn_id": 4925604,
          "player_name": "Carson Benge",
          "team": "NYM",
          "role": "batter",
          "espn_rank": 159,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 159,
            "gp_value": 71.0,
            "gp_rank": 49,
            "ab_value": 260.0,
            "ab_rank": 70,
            "r_value": 38.0,
            "r_rank": 64,
            "h_value": 65.0,
            "h_rank": 75,
            "avg_value": 0.25,
            "avg_rank": 90.0,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 26.0,
            "rbi_rank": 146,
            "tb_value": 99.0,
            "tb_rank": 620,
            "bb_value": 19.0,
            "bb_rank": 161,
            "so_value": 61.0,
            "so_rank": 78,
            "sb_value": 10.0,
            "sb_rank": 37,
            "obp_value": 0.310954,
            "obp_rank": "117",
            "slg_value": 0.3807692,
            "slg_rank": "118",
            "ops_value": 0.6917232,
            "ops_rank": 1.0,
            "war_value": 0.8,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 199.0,
          "k_percent": 21.6,
          "bb_percent": 6.7,
          "woba": 0.308,
          "xwoba": 0.347,
          "xba": 0.284,
          "xslg": 0.454,
          "sweet_spot_percent": 40.7,
          "barrel_batted_rate": 9.1,
          "hard_hit_percent": 43.2,
          "exit_velocity_avg": 90.1,
          "launch_angle_avg": 11.4,
          "whiff_percent": 21.5,
          "swing_percent": 45.0
        },
        "components": {
          "expected_quality": 0.9859,
          "regression_edge": 1.1143,
          "xwoba_edge": 1.2286,
          "xba_edge": 1.3,
          "xslg_edge": 1.1714,
          "barrel_edge": 0.5111,
          "hard_hit_edge": 0.6714,
          "exit_velocity_edge": 0.52,
          "sweet_spot_edge": 1.2333,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "LF",
        "player_id": "665742",
        "player_name": "Juan Soto",
        "offense_factor": 1.0977,
        "quality_score": 1.3028,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "665742",
          "espn_id": 36969,
          "player_name": "Juan Soto",
          "team": "NYM",
          "role": "batter",
          "espn_rank": 46,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 46,
            "gp_value": 57.0,
            "gp_rank": 195,
            "ab_value": 209.0,
            "ab_rank": 145,
            "r_value": 34.0,
            "r_rank": 83,
            "h_value": 62.0,
            "h_rank": 89,
            "avg_value": 0.2966507,
            "avg_rank": 11.0,
            "2b_value": 7.0,
            "2b_rank": 206,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 15.0,
            "hr_rank": 23,
            "rbi_value": 36.0,
            "rbi_rank": 63,
            "tb_value": 116.0,
            "tb_rank": 508,
            "bb_value": 34.0,
            "bb_rank": 40,
            "so_value": 33.0,
            "so_rank": 250,
            "sb_value": 6.0,
            "sb_rank": 79,
            "obp_value": 0.3934426,
            "obp_rank": "10",
            "slg_value": 0.5550239,
            "slg_rank": "6",
            "ops_value": 0.9484665,
            "ops_rank": 16.0,
            "war_value": 2.07,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 157.0,
          "k_percent": 13.5,
          "bb_percent": 13.9,
          "woba": 0.402,
          "xwoba": 0.421,
          "xba": 0.303,
          "xslg": 0.612,
          "sweet_spot_percent": 31.6,
          "barrel_batted_rate": 15.4,
          "hard_hit_percent": 49.7,
          "exit_velocity_avg": 93.1,
          "launch_angle_avg": 15.7,
          "whiff_percent": 20.8,
          "swing_percent": 40.1
        },
        "components": {
          "expected_quality": 2.0344,
          "regression_edge": 0.5429,
          "xwoba_edge": 2.5,
          "xba_edge": 1.8429,
          "xslg_edge": 2.5,
          "barrel_edge": 1.9111,
          "hard_hit_edge": 1.6,
          "exit_velocity_edge": 1.72,
          "sweet_spot_edge": -0.2833,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "CF",
        "player_id": "805999",
        "player_name": "A.J. Ewing",
        "offense_factor": 1.0133,
        "quality_score": 0.1779,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "805999",
          "espn_id": 5208019,
          "player_name": "A.J. Ewing",
          "team": "NYM",
          "role": "batter",
          "espn_rank": 141,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 141,
            "gp_value": 34.0,
            "gp_rank": 333,
            "ab_value": 116.0,
            "ab_rank": 287,
            "r_value": 14.0,
            "r_rank": 287,
            "h_value": 29.0,
            "h_rank": 269,
            "avg_value": 0.25,
            "avg_rank": null,
            "2b_value": 5.0,
            "2b_rank": 259,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 2.0,
            "hr_rank": 301,
            "rbi_value": 11.0,
            "rbi_rank": 306,
            "tb_value": 42.0,
            "tb_rank": 1575,
            "bb_value": 15.0,
            "bb_rank": 204,
            "so_value": 40.0,
            "so_rank": 193,
            "sb_value": 7.0,
            "sb_rank": 62,
            "obp_value": 0.3333333,
            "obp_rank": "-",
            "slg_value": 0.3620689,
            "slg_rank": "-",
            "ops_value": 0.6954022,
            "ops_rank": null,
            "war_value": 0.91,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 57.0,
          "k_percent": 29.9,
          "bb_percent": 11.2,
          "woba": 0.313,
          "xwoba": 0.329,
          "xba": 0.265,
          "xslg": 0.389,
          "sweet_spot_percent": 40.5,
          "barrel_batted_rate": 5.1,
          "hard_hit_percent": 39.2,
          "exit_velocity_avg": 88.6,
          "launch_angle_avg": 12.6,
          "whiff_percent": 23.8,
          "swing_percent": 43.4
        },
        "components": {
          "expected_quality": 0.3853,
          "regression_edge": 0.4571,
          "xwoba_edge": 0.7143,
          "xba_edge": 0.7571,
          "xslg_edge": 0.2429,
          "barrel_edge": -0.3778,
          "hard_hit_edge": 0.1,
          "exit_velocity_edge": -0.08,
          "sweet_spot_edge": 1.2,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "3B",
        "player_id": "683146",
        "player_name": "Brett Baty",
        "offense_factor": 0.9968,
        "quality_score": -0.0432,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "683146",
          "espn_id": 42414,
          "player_name": "Brett Baty",
          "team": "NYM",
          "role": "batter",
          "espn_rank": 250,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 250,
            "gp_value": 70.0,
            "gp_rank": 72,
            "ab_value": 217.0,
            "ab_rank": 131,
            "r_value": 24.0,
            "r_rank": 172,
            "h_value": 49.0,
            "h_rank": 154,
            "avg_value": 0.2258064,
            "avg_rank": 133.0,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 3.0,
            "hr_rank": 243,
            "rbi_value": 26.0,
            "rbi_rank": 146,
            "tb_value": 69.0,
            "tb_rank": 1181,
            "bb_value": 22.0,
            "bb_rank": 123,
            "so_value": 69.0,
            "so_rank": 48,
            "sb_value": 3.0,
            "sb_rank": 148,
            "obp_value": 0.3032786,
            "obp_rank": "129",
            "slg_value": 0.3179723,
            "slg_rank": "152",
            "ops_value": 0.6212509,
            "ops_rank": 281.0,
            "war_value": 0.29,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 180.0,
          "k_percent": 28.2,
          "bb_percent": 9.0,
          "woba": 0.283,
          "xwoba": 0.296,
          "xba": 0.228,
          "xslg": 0.36,
          "sweet_spot_percent": 34.0,
          "barrel_batted_rate": 7.3,
          "hard_hit_percent": 38.7,
          "exit_velocity_avg": 89.2,
          "launch_angle_avg": 9.4,
          "whiff_percent": 28.2,
          "swing_percent": 45.8
        },
        "components": {
          "expected_quality": -0.1218,
          "regression_edge": 0.3714,
          "xwoba_edge": -0.2286,
          "xba_edge": -0.3,
          "xslg_edge": -0.1714,
          "barrel_edge": 0.1111,
          "hard_hit_edge": 0.0286,
          "exit_velocity_edge": 0.16,
          "sweet_spot_edge": 0.1167,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "2B",
        "player_id": "543760",
        "player_name": "Marcus Semien",
        "offense_factor": 1.0381,
        "quality_score": 0.5083,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "543760",
          "espn_id": 32146,
          "player_name": "Marcus Semien",
          "team": "NYM",
          "role": "batter",
          "espn_rank": 472,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 472,
            "gp_value": 74.0,
            "gp_rank": 13,
            "ab_value": 267.0,
            "ab_rank": 48,
            "r_value": 29.0,
            "r_rank": 128,
            "h_value": 59.0,
            "h_rank": 103,
            "avg_value": 0.2209737,
            "avg_rank": 144.0,
            "2b_value": 8.0,
            "2b_rank": 188,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 9.0,
            "hr_rank": 84,
            "rbi_value": 27.0,
            "rbi_rank": 139,
            "tb_value": 94.0,
            "tb_rank": 931,
            "bb_value": 22.0,
            "bb_rank": 123,
            "so_value": 62.0,
            "so_rank": 74,
            "sb_value": 6.0,
            "sb_rank": 79,
            "obp_value": 0.2798634,
            "obp_rank": "149",
            "slg_value": 0.3520599,
            "slg_rank": "138",
            "ops_value": 0.6319233,
            "ops_rank": 287.0,
            "war_value": -0.26,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 214.0,
          "k_percent": 21.1,
          "bb_percent": 7.5,
          "woba": 0.281,
          "xwoba": 0.325,
          "xba": 0.26,
          "xslg": 0.428,
          "sweet_spot_percent": 38.3,
          "barrel_batted_rate": 8.7,
          "hard_hit_percent": 34.9,
          "exit_velocity_avg": 86.2,
          "launch_angle_avg": 18.5,
          "whiff_percent": 23.0,
          "swing_percent": 50.4
        },
        "components": {
          "expected_quality": 0.4029,
          "regression_edge": 1.2571,
          "xwoba_edge": 0.6,
          "xba_edge": 0.6143,
          "xslg_edge": 0.8,
          "barrel_edge": 0.4222,
          "hard_hit_edge": -0.5143,
          "exit_velocity_edge": -1.04,
          "sweet_spot_edge": 0.8333,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "DH",
        "player_id": "669004",
        "player_name": "MJ Melendez",
        "offense_factor": 0.9874,
        "quality_score": -0.1674,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "669004",
          "espn_id": 40948,
          "player_name": "MJ Melendez",
          "team": "NYM",
          "role": "batter",
          "espn_rank": 367,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 367,
            "gp_value": 49.0,
            "gp_rank": 242,
            "ab_value": 106.0,
            "ab_rank": 310,
            "r_value": 14.0,
            "r_rank": 287,
            "h_value": 21.0,
            "h_rank": 328,
            "avg_value": 0.1981132,
            "avg_rank": null,
            "2b_value": 5.0,
            "2b_rank": 259,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 4.0,
            "hr_rank": 203,
            "rbi_value": 11.0,
            "rbi_rank": 306,
            "tb_value": 40.0,
            "tb_rank": 1340,
            "bb_value": 14.0,
            "bb_rank": 215,
            "so_value": 43.0,
            "so_rank": 171,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3174603,
            "obp_rank": "-",
            "slg_value": 0.3773584,
            "slg_rank": "-",
            "ops_value": 0.6948187,
            "ops_rank": null,
            "war_value": -0.04,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 83.0,
          "k_percent": 33.9,
          "bb_percent": 11.0,
          "woba": 0.313,
          "xwoba": 0.276,
          "xba": 0.164,
          "xslg": 0.31,
          "sweet_spot_percent": 27.7,
          "barrel_batted_rate": 10.8,
          "hard_hit_percent": 55.4,
          "exit_velocity_avg": 93.9,
          "launch_angle_avg": 23.9,
          "whiff_percent": 34.4,
          "swing_percent": 46.5
        },
        "components": {
          "expected_quality": -0.2606,
          "regression_edge": -1.0571,
          "xwoba_edge": -0.8,
          "xba_edge": -2.1286,
          "xslg_edge": -0.8857,
          "barrel_edge": 0.8889,
          "hard_hit_edge": 2.4143,
          "exit_velocity_edge": 2.04,
          "sweet_spot_edge": -0.9333,
          "launch_angle_hr_bonus": 0.45
        }
      },
      {
        "position": "C",
        "player_id": "682626",
        "player_name": "Francisco Alvarez",
        "offense_factor": 1.0471,
        "quality_score": 0.6282,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "682626",
          "espn_id": 41253,
          "player_name": "Francisco Alvarez",
          "team": "NYM",
          "role": "batter",
          "espn_rank": 388,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 388,
            "gp_value": 44.0,
            "gp_rank": 272,
            "ab_value": 137.0,
            "ab_rank": 258,
            "r_value": 14.0,
            "r_rank": 287,
            "h_value": 35.0,
            "h_rank": 232,
            "avg_value": 0.2554744,
            "avg_rank": null,
            "2b_value": 5.0,
            "2b_rank": 259,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 5.0,
            "hr_rank": 184,
            "rbi_value": 13.0,
            "rbi_rank": 285,
            "tb_value": 55.0,
            "tb_rank": 1431,
            "bb_value": 13.0,
            "bb_rank": 237,
            "so_value": 35.0,
            "so_rank": 235,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3267973,
            "obp_rank": "-",
            "slg_value": 0.4014598,
            "slg_rank": "-",
            "ops_value": 0.7282571,
            "ops_rank": null,
            "war_value": -0.08,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 128.0,
          "k_percent": 22.6,
          "bb_percent": 8.4,
          "woba": 0.324,
          "xwoba": 0.35,
          "xba": 0.26,
          "xslg": 0.476,
          "sweet_spot_percent": 32.0,
          "barrel_batted_rate": 16.5,
          "hard_hit_percent": 43.7,
          "exit_velocity_avg": 90.6,
          "launch_angle_avg": 9.4,
          "whiff_percent": 29.5,
          "swing_percent": 46.9
        },
        "components": {
          "expected_quality": 1.1345,
          "regression_edge": 0.7429,
          "xwoba_edge": 1.3143,
          "xba_edge": 0.6143,
          "xslg_edge": 1.4857,
          "barrel_edge": 2.1556,
          "hard_hit_edge": 0.7429,
          "exit_velocity_edge": 0.72,
          "sweet_spot_edge": -0.2167,
          "launch_angle_hr_bonus": 0.0
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "reason": "Baseball Savant hitter xwOBA, xBA, xSLG, exit velocity, launch angle, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted offense; ESPN rank is attached for reporting only"
}

Savant Pitcher Quality

Source: data/all_players_stats.csv embedded Savant pitcher and movement features. Starter quality modifies opposing run scoring and pitcher strikeout/walk/homer expectations.

TeamPitcherAvailableESPN RankQualitySample WtRun PrevK FactorBB FactorHR FactorRegressionxwOBAwOBAK%BB%Whiff%Barrel%HardHit%
Away NYMTrue485-0.04950.63201.00420.99420.98361.0219neutral0.31800.334023.807.9022.809.2038
Home PHITrue267-0.12940.88401.01100.99900.97521.0430positive_pitcher_regression0.32700.3600237.80259.3038.80

Pitch Movement And Arsenal

TeamPitcherMovement AvailablePrimary PitchPitchesVeloSpinAxisHBIVBDropRel XRel ZExtensionArm AngleMovement Score
Away NYMTrueNone6384.27209400000000-0.2800
Home PHITrueNone8086.02229900000000-0.2074
Run FactorValue
away_runs_vs_home_pitcher1.0097
home_runs_vs_away_pitcher1.0027
home_pitcher_quality_edge-0.0799
Raw Savant Pitcher Quality JSON
{
  "applied": true,
  "home_pitcher": {
    "available": true,
    "pitcher_id": "605400",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 221.0,
      "k_percent": 23.0,
      "bb_percent": 7.8,
      "woba": 0.36,
      "xwoba": 0.327,
      "sweet_spot_percent": 36.0,
      "barrel_batted_rate": 9.3,
      "hard_hit_percent": 38.8,
      "avg_best_speed": 76.3074,
      "avg_hyper_speed": 94.1882,
      "whiff_percent": 25.0,
      "swing_percent": 45.6
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": -0.4314,
      "command_and_miss": 0.0671,
      "regression_edge": 0.9429,
      "xwoba_edge": -0.3429,
      "barrel_edge": -0.4444,
      "hard_hit_edge": -0.0714,
      "whiff_edge": -0.1,
      "bb_edge": 0.35,
      "pitch_design_score": -0.2074
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "605400",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 80,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 80,
        "pitch_usage": 0.0,
        "release_speed": 86.0245751140897,
        "release_spin_rate": 2299.076010454948,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 80,
          "pitch_usage": 0.0,
          "release_speed": 86.0245751140897,
          "release_spin_rate": 2299.076010454948,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 86.0246,
        "release_spin_rate": 2299.076,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": -0.2074,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": -1.4817,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": -0.1294,
    "sample_weight": 0.884,
    "run_prevention_factor": 1.011,
    "strikeout_factor": 0.999,
    "walk_factor": 0.9752,
    "homer_factor": 1.043,
    "woba_minus_xwoba": 0.033,
    "regression_flag": "positive_pitcher_regression",
    "espn_rank": {
      "available": true,
      "player_id": "605400",
      "espn_id": 33709,
      "player_name": "Aaron Nola",
      "team": "PHI",
      "role": "pitcher",
      "espn_rank": 267,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 267,
        "gp_value": 14.0,
        "gp_rank": 279,
        "gs_value": 14.0,
        "gs_rank": 37,
        "qs_value": 4.0,
        "qs_rank": 73,
        "era_value": 5.8584,
        "era_rank": null,
        "w_value": 3.0,
        "w_rank": 107,
        "l_value": 4.0,
        "l_rank": 62,
        "sv_value": 0.0,
        "sv_rank": 172,
        "hld_value": 0.0,
        "hld_rank": 256,
        "ip_value": 70.2,
        "ip_rank": 72,
        "h_value": 80.0,
        "h_rank": 22,
        "er_value": 46.0,
        "er_rank": 7,
        "hr_value": 13.0,
        "hr_rank": 23,
        "bb_value": 24.0,
        "bb_rank": 68,
        "k_value": 71.0,
        "k_rank": 52,
        "k_per_9_value": 9.042453,
        "k_per_9_rank": 19,
        "whip_value": 1.4716,
        "whip_rank": null,
        "war_value": 0.21,
        "war_rank": null
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "away_pitcher": {
    "available": true,
    "pitcher_id": "640455",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 158.0,
      "k_percent": 23.8,
      "bb_percent": 7.9,
      "woba": 0.334,
      "xwoba": 0.318,
      "sweet_spot_percent": 35.2,
      "barrel_batted_rate": 9.2,
      "hard_hit_percent": 38.0,
      "avg_best_speed": 76.2541,
      "avg_hyper_speed": 94.0572,
      "whiff_percent": 22.8,
      "swing_percent": 47.4
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": -0.1832,
      "command_and_miss": 0.0036,
      "regression_edge": 0.4571,
      "xwoba_edge": -0.0857,
      "barrel_edge": -0.4222,
      "hard_hit_edge": 0.0429,
      "whiff_edge": -0.4143,
      "bb_edge": 0.325,
      "pitch_design_score": -0.28
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "640455",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 63,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 63,
        "pitch_usage": 0.0,
        "release_speed": 84.2727734472041,
        "release_spin_rate": 2093.764899844348,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 63,
          "pitch_usage": 0.0,
          "release_speed": 84.2727734472041,
          "release_spin_rate": 2093.764899844348,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 84.2728,
        "release_spin_rate": 2093.7649,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": -0.28,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": -2.0,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": -0.0495,
    "sample_weight": 0.632,
    "run_prevention_factor": 1.0042,
    "strikeout_factor": 0.9942,
    "walk_factor": 0.9836,
    "homer_factor": 1.0219,
    "woba_minus_xwoba": 0.016,
    "regression_flag": "neutral",
    "espn_rank": {
      "available": true,
      "player_id": "640455",
      "espn_id": 33244,
      "player_name": "Sean Manaea",
      "team": "NYM",
      "role": "pitcher",
      "espn_rank": 485,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 485,
        "gp_value": 15.0,
        "gp_rank": 228,
        "gs_value": 1.0,
        "gs_rank": 240,
        "qs_value": 1.0,
        "qs_rank": 134,
        "era_value": 4.7755,
        "era_rank": null,
        "w_value": 1.0,
        "w_rank": 287,
        "l_value": 2.0,
        "l_rank": 185,
        "sv_value": 0.0,
        "sv_rank": 172,
        "hld_value": 0.0,
        "hld_rank": 256,
        "ip_value": 49.0,
        "ip_rank": 136,
        "h_value": 49.0,
        "h_rank": 119,
        "er_value": 26.0,
        "er_rank": 104,
        "hr_value": 6.0,
        "hr_rank": 125,
        "bb_value": 17.0,
        "bb_rank": 157,
        "k_value": 51.0,
        "k_rank": 108,
        "k_per_9_value": 9.367347,
        "k_per_9_rank": 21,
        "whip_value": 1.3469,
        "whip_rank": null,
        "war_value": -0.1,
        "war_rank": null
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "run_factors": {
    "away_runs_vs_home_pitcher": 1.0097,
    "home_runs_vs_away_pitcher": 1.0027,
    "home_pitcher_quality_edge": -0.0799
  },
  "score_before": {
    "away_runs": 4.9164,
    "home_runs": 2.0889
  },
  "score_after": {
    "away_runs": 4.9642,
    "home_runs": 2.0944,
    "home_win_probability": 0.2546
  },
  "reason": "Baseball Savant xwOBA, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted starter run prevention"
}

Team Form Snapshot

TeamLast-10 W-LWin %R/GRA/GRun DiffStreakOffenseDefense
Away NYM24-410.3691.103.10-131coldstrong
Home PHI16-490.24613-128coldstrong

Season Run Differential

TeamRecordWin %Run DiffRD/GameAvailable
Away NYM33-410.446-17-0.230True
Home PHI40-340.541-18-0.243True
Signal---0.0130.128applied=False

Recent Head-to-Head

DateMatchupScoreWinnerMarginType
------

Player/Game Reconciliation

LayerABHRHRRBIBBSO
Game target NYM--4----
Game target PHI--3----
Player finalized NYM32930319
Player finalized PHI33940329
Player model fractional NYM31.867.413.820.983.533.147.86
Player model fractional PHI32.067.144.171.163.952.778.04
Simulation box NYM34741437
Simulation box PHI34722218

If player finalized rows and game target disagree, the report now exposes that gap instead of hiding it. Fractional model rows show the unrounded prop layer before box-score realization.

Pitching Snapshot

TeamRolePitcherPre IPPre ERPre SOPre HPre BBWeighted ERAWeighted WHIPBox Sync
Away NYMStarterSean Manaea5.1027504.111.19True
Away NYMMiddle RelieverBrooks Raley1.1000003.841.35True
Away NYMMiddle RelieverDevin Williams1.1001103.901.21True
Away NYMMiddle RelieverLuke Weaver100112.280.84True
Home PHIStarterAaron Nola543625.691.41True
Home PHIMiddle RelieverJhoan Duran103002.430.99True
Home PHIMiddle RelieverJonathan Bowlan100012.861.11True
Home PHIMiddle RelieverJosé Alvarado100105.791.36True
Home PHIMiddle RelieverOrion Kerkering101003.101.28True
Market-line comparison is not rendered because no local odds or sportsbook line CSV was found in data/. Add a real odds source before using market deltas as a model feature.

Player Boost/Deboost Impact Summary

SideTeamRolePosPlayerDominantChangedBoostedDeboostedBetterWorseLargest MetricLargest DeltaDirectionEffect
awayNYMbatterSSBo Bichetteworse115647predicted_RBI2.4000boostbetter
homePHIpitcherStarterAaron Nolaworse11001predicted_H2.0000boostworse
homePHIpitcherMiddle RelieverJhoan Duranbetter10110predicted_H-2.0000deboostbetter
homePHIbatterCFDerek Hillbetter95454predicted_H1.8400boostbetter
awayNYMbatter1BJared Youngworse103746predicted_H1.7400boostbetter
awayNYMbatter3BBrett Batyworse113847predicted_H1.2800boostbetter
homePHIbatterLFEdmundo Sosaworse113829predicted_AB1.2250boostbetter
homePHIbatter1BBryce Harperbetter116574predicted_H1.1400boostbetter
awayNYMbatterLFJuan Sotoworse102819predicted_H-1.1000deboostworse
homePHIbatterRFBrandon Marshworse103728predicted_SO1.0880boostworse
homePHIbatterDHKyle Schwarberworse101928predicted_H-1.0000deboostworse
homePHIbatter3BAlec Bohmworse101928predicted_H-0.9200deboostworse
awayNYMbatterRFCarson Bengeworse93645predicted_SO-0.8840deboostbetter
awayNYMbatterCFA.J. Ewingworse102819predicted_H-0.8600deboostworse
awayNYMbatter2BMarcus Semienworse1129110predicted_H-0.8600deboostworse
awayNYMbatterCFrancisco Alvarezworse112938predicted_SO-0.8330deboostbetter
homePHIbatterCJ.T. Realmutoworse1129110predicted_H-0.7100deboostworse
awayNYMbatterDHMJ Melendezworse92727predicted_BB0.6900boostbetter
homePHIbatterSSTrea Turnerworse80808predicted_AB-0.6700deboostworse
homePHIbatter2BBryson Stottworse93627predicted_AB0.5670boostbetter
awayNYMpitcherStarterSean Manaeaworse10101predicted_IP-0.2333deboostworse
awayNYMpitcherMiddle RelieverBrooks Raleybetter11010predicted_IP0.1000boostbetter
awayNYMpitcherMiddle RelieverDevin Williamsbetter11010predicted_IP0.1000boostbetter

This table ranks players whose JSON evolution changed materially. Boost/deboost is numeric movement; better/worse is role-aware.

Away Team: NYM

Away Pitcher Deep Analysis

FieldValue
PitcherSean Manaea
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score-0.0495
ESPN Rank485
Movement AvailableTrue
Primary Pitch-
Movement Score-0.2800
Avg Velo84.2728
Avg Spin2093.7649
HB Inches0
IVB Inches0
Release Extension0
Pre IP5.1000
Pre ER2
Pre H5
Pre BB0
Pre SO7
Season ERA4.7755
Season WHIP1.3469
Role Avg IP6
Recent Avg IP6
Last Start IP6
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "NYM",
    "games": 81,
    "wins": 34,
    "losses": 47,
    "win_pct": 0.4198,
    "runs_scored": 318.0,
    "runs_allowed": 337.0,
    "run_differential": -19.0,
    "run_differential_per_game": -0.2346,
    "avg_runs_scored": 3.9259,
    "avg_runs_allowed": 4.1605,
    "offense_index": 0.8712,
    "defense_index": 1.0831,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 5.0,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.0968
  },
  "opponent": {
    "team": "PHI",
    "games": 81,
    "wins": 41,
    "losses": 40,
    "win_pct": 0.5062,
    "runs_scored": 328.0,
    "runs_allowed": 354.0,
    "run_differential": -26.0,
    "run_differential_per_game": -0.321,
    "avg_runs_scored": 4.0494,
    "avg_runs_allowed": 4.3704,
    "offense_index": 0.8986,
    "defense_index": 1.0311,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.1,
      "avg_runs_allowed": 4.6,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": 0.0011
  },
  "edges": {
    "quality_edge": -0.0979,
    "offense_edge": -0.1288,
    "opponent_offense_edge": -0.1014,
    "defense_strength": 0.0831,
    "opponent_defense_weakness": -0.0311,
    "recent_win_pct_edge": -0.1
  },
  "player_factors": {
    "ip": 1.0026,
    "run_prevention": 0.9804,
    "strikeout": 1.0052
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "640455",
    "profile": {
      "available": true,
      "pitcher_id": "640455",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 158.0,
        "k_percent": 23.8,
        "bb_percent": 7.9,
        "woba": 0.334,
        "xwoba": 0.318,
        "sweet_spot_percent": 35.2,
        "barrel_batted_rate": 9.2,
        "hard_hit_percent": 38.0,
        "avg_best_speed": 76.2541,
        "avg_hyper_speed": 94.0572,
        "whiff_percent": 22.8,
        "swing_percent": 47.4
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.1832,
        "command_and_miss": 0.0036,
        "regression_edge": 0.4571,
        "xwoba_edge": -0.0857,
        "barrel_edge": -0.4222,
        "hard_hit_edge": 0.0429,
        "whiff_edge": -0.4143,
        "bb_edge": 0.325,
        "pitch_design_score": -0.28
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "640455",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 63,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 63,
          "pitch_usage": 0.0,
          "release_speed": 84.2727734472041,
          "release_spin_rate": 2093.764899844348,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 63,
            "pitch_usage": 0.0,
            "release_speed": 84.2727734472041,
            "release_spin_rate": 2093.764899844348,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 84.2728,
          "release_spin_rate": 2093.7649,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.28,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -2.0,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": -0.0495,
      "sample_weight": 0.632,
      "run_prevention_factor": 1.0042,
      "strikeout_factor": 0.9942,
      "walk_factor": 0.9836,
      "homer_factor": 1.0219,
      "woba_minus_xwoba": 0.016,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "640455",
        "espn_id": 33244,
        "player_name": "Sean Manaea",
        "team": "NYM",
        "role": "pitcher",
        "espn_rank": 485,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 485,
          "gp_value": 15.0,
          "gp_rank": 228,
          "gs_value": 1.0,
          "gs_rank": 240,
          "qs_value": 1.0,
          "qs_rank": 134,
          "era_value": 4.7755,
          "era_rank": null,
          "w_value": 1.0,
          "w_rank": 287,
          "l_value": 2.0,
          "l_rank": 185,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 49.0,
          "ip_rank": 136,
          "h_value": 49.0,
          "h_rank": 119,
          "er_value": 26.0,
          "er_rank": 104,
          "hr_value": 6.0,
          "hr_rank": 125,
          "bb_value": 17.0,
          "bb_rank": 157,
          "k_value": 51.0,
          "k_rank": 108,
          "k_per_9_value": 9.367347,
          "k_per_9_rank": 21,
          "whip_value": 1.3469,
          "whip_rank": null,
          "war_value": -0.1,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 2.0,
        "factor": 1.0027,
        "adjusted": 2
      },
      "predicted_H": {
        "original": 4.0,
        "factor": 1.0027,
        "adjusted": 4
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9896,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 1.0,
        "factor": 1.0138,
        "adjusted": 1
      },
      "predicted_SO": {
        "original": 5.0,
        "factor": 0.9963,
        "adjusted": 5
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 33.0,
    "ER": 18,
    "H": 33,
    "BB": 10,
    "SO": 39,
    "HR": 4,
    "ERA": 4.909090909090909,
    "WHIP": 1.303030303030303,
    "K9": 10.636363636363637,
    "HR9": 1.0909090909090908,
    "games_pitched": 10,
    "quality_starts": 1,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "640455",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 63,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 63,
    "pitch_usage": 0.0,
    "release_speed": 84.2727734472041,
    "release_spin_rate": 2093.764899844348,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 63,
      "pitch_usage": 0.0,
      "release_speed": 84.2727734472041,
      "release_spin_rate": 2093.764899844348,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 84.2728,
    "release_spin_rate": 2093.7649,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.28,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -2.0,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 15.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.75,
    "prior_weight": 0.25
  },
  "role": "pitcher",
  "player_id": "640455",
  "report_date": "20260618_N",
  "season_year": 2026,
  "rows_used": 15,
  "reference_playing_time": 5.333,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 21.2,
        "ER": 7.0,
        "R": 7.0,
        "H": 16.0,
        "BB": 4.0,
        "SO": 22.0,
        "HR": 3.0,
        "BF": 83.0,
        "Pitches": 346.0
      },
      "per_game": {
        "IP": 4.1,
        "ER": 1.4,
        "R": 1.4,
        "H": 3.2,
        "BB": 0.8,
        "SO": 4.4,
        "HR": 0.6,
        "BF": 16.6,
        "Pitches": 69.2
      },
      "rates": {
        "ERA": 2.9077,
        "WHIP": 0.9231,
        "ER_per_IP": 0.32308,
        "H_per_IP": 0.73846,
        "BB_per_IP": 0.18462,
        "SO_per_IP": 1.01538,
        "HR_per_IP": 0.13846
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 33.0,
        "ER": 18.0,
        "R": 19.0,
        "H": 33.0,
        "BB": 10.0,
        "SO": 39.0,
        "HR": 4.0,
        "BF": 144.0,
        "Pitches": 574.0
      },
      "per_game": {
        "IP": 3.1,
        "ER": 1.8,
        "R": 1.9,
        "H": 3.3,
        "BB": 1.0,
        "SO": 3.9,
        "HR": 0.4,
        "BF": 14.4,
        "Pitches": 57.4
      },
      "rates": {
        "ERA": 4.9091,
        "WHIP": 1.303,
        "ER_per_IP": 0.54545,
        "H_per_IP": 1.0,
        "BB_per_IP": 0.30303,
        "SO_per_IP": 1.18182,
        "HR_per_IP": 0.12121
      }
    },
    "season": {
      "games": 15,
      "totals": {
        "IP": 49.0,
        "ER": 26.0,
        "R": 27.0,
        "H": 49.0,
        "BB": 17.0,
        "SO": 51.0,
        "HR": 6.0,
        "BF": 214.0,
        "Pitches": 860.0
      },
      "per_game": {
        "IP": 3.1,
        "ER": 1.7333,
        "R": 1.8,
        "H": 3.2667,
        "BB": 1.1333,
        "SO": 3.4,
        "HR": 0.4,
        "BF": 14.2667,
        "Pitches": 57.3333
      },
      "rates": {
        "ERA": 4.7755,
        "WHIP": 1.3469,
        "ER_per_IP": 0.53061,
        "H_per_IP": 1.0,
        "BB_per_IP": 0.34694,
        "SO_per_IP": 1.04082,
        "HR_per_IP": 0.12245
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 4.1,
    "predicted_ER": 1.906,
    "predicted_H": 3.776,
    "predicted_BB": 1.187,
    "predicted_SO": 4.352,
    "predicted_HR": 0.556,
    "predicted_ERA": 4.1134,
    "predicted_WHIP": 1.1899
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.4556,
  "form_weight": 0.5444,
  "form_reliability": 0.75,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 15.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.75,
    "prior_weight": 0.25
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 5.1,
      "form": 4.1,
      "final": 4.2,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 2.0,
      "form": 1.906,
      "final": 1.9488,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 5.0,
      "form": 3.776,
      "final": 4.3337,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 1.187,
      "final": 0.6462,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 7.0,
      "form": 4.352,
      "final": 5.5585,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 2.0,
      "form": 0.556,
      "final": 1.2139,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.1134,
      "final": 4.1134,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1899,
      "final": 1.1899,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherBrooks Raley
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.1249
ESPN Rank116
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1.1000
Pre ER0
Pre H0
Pre BB0
Pre SO0
Season ERA2
Season WHIP1.2593
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "NYM",
    "games": 81,
    "wins": 34,
    "losses": 47,
    "win_pct": 0.4198,
    "runs_scored": 318.0,
    "runs_allowed": 337.0,
    "run_differential": -19.0,
    "run_differential_per_game": -0.2346,
    "avg_runs_scored": 3.9259,
    "avg_runs_allowed": 4.1605,
    "offense_index": 0.8712,
    "defense_index": 1.0831,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 5.0,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.0968
  },
  "opponent": {
    "team": "PHI",
    "games": 81,
    "wins": 41,
    "losses": 40,
    "win_pct": 0.5062,
    "runs_scored": 328.0,
    "runs_allowed": 354.0,
    "run_differential": -26.0,
    "run_differential_per_game": -0.321,
    "avg_runs_scored": 4.0494,
    "avg_runs_allowed": 4.3704,
    "offense_index": 0.8986,
    "defense_index": 1.0311,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.1,
      "avg_runs_allowed": 4.6,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": 0.0011
  },
  "edges": {
    "quality_edge": -0.0979,
    "offense_edge": -0.1288,
    "opponent_offense_edge": -0.1014,
    "defense_strength": 0.0831,
    "opponent_defense_weakness": -0.0311,
    "recent_win_pct_edge": -0.1
  },
  "player_factors": {
    "ip": 1.0026,
    "run_prevention": 0.9804,
    "strikeout": 1.0052
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "548384",
    "profile": {
      "available": true,
      "pitcher_id": "548384",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 89.0,
        "k_percent": 26.5,
        "bb_percent": 10.3,
        "woba": 0.287,
        "xwoba": 0.296,
        "sweet_spot_percent": 38.9,
        "barrel_batted_rate": 6.9,
        "hard_hit_percent": 30.6,
        "avg_best_speed": 76.2791,
        "avg_hyper_speed": 93.1912,
        "whiff_percent": 26.0,
        "swing_percent": 44.6
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.4407,
        "command_and_miss": 0.2171,
        "regression_edge": -0.2571,
        "xwoba_edge": 0.5429,
        "barrel_edge": 0.0889,
        "hard_hit_edge": 1.1,
        "whiff_edge": 0.0429,
        "bb_edge": -0.275,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "548384",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.1249,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9894,
      "strikeout_factor": 1.0111,
      "walk_factor": 1.0099,
      "homer_factor": 0.9697,
      "woba_minus_xwoba": -0.009,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "548384",
        "espn_id": 32005,
        "player_name": "Brooks Raley",
        "team": "NYM",
        "role": "pitcher",
        "espn_rank": 116,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 116,
          "gp_value": 30.0,
          "gp_rank": 64,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.0,
          "era_rank": null,
          "w_value": 2.0,
          "w_rank": 180,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 10.0,
          "hld_rank": 22,
          "ip_value": 27.0,
          "ip_rank": 302,
          "h_value": 22.0,
          "h_rank": 299,
          "er_value": 6.0,
          "er_rank": 464,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 12.0,
          "bb_rank": 246,
          "k_value": 31.0,
          "k_rank": 239,
          "k_per_9_value": 10.333333,
          "k_per_9_rank": 21,
          "whip_value": 1.2592,
          "whip_rank": null,
          "war_value": 0.88,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9952,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9952,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0045,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9864,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.005,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 8.2,
    "ER": 3,
    "H": 9,
    "BB": 4,
    "SO": 10,
    "HR": 1,
    "ERA": 3.115384615384615,
    "WHIP": 1.4999999999999998,
    "K9": 10.384615384615383,
    "HR9": 1.0384615384615383,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-17T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "548384",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.362,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5175,
    "prior_weight": 0.4825
  },
  "role": "pitcher",
  "player_id": "548384",
  "report_date": "20260618_N",
  "season_year": 2026,
  "rows_used": 30,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.2,
        "ER": 2.0,
        "R": 2.0,
        "H": 4.0,
        "BB": 2.0,
        "SO": 5.0,
        "HR": 0.0,
        "BF": 21.0,
        "Pitches": 86.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4,
        "R": 0.4,
        "H": 0.8,
        "BB": 0.4,
        "SO": 1.0,
        "HR": 0.0,
        "BF": 4.2,
        "Pitches": 17.2
      },
      "rates": {
        "ERA": 3.8571,
        "WHIP": 1.2857,
        "ER_per_IP": 0.42857,
        "H_per_IP": 0.85714,
        "BB_per_IP": 0.42857,
        "SO_per_IP": 1.07143,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 8.2,
        "ER": 3.0,
        "R": 3.0,
        "H": 9.0,
        "BB": 4.0,
        "SO": 10.0,
        "HR": 1.0,
        "BF": 40.0,
        "Pitches": 161.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3,
        "R": 0.3,
        "H": 0.9,
        "BB": 0.4,
        "SO": 1.0,
        "HR": 0.1,
        "BF": 4.0,
        "Pitches": 16.1
      },
      "rates": {
        "ERA": 3.1154,
        "WHIP": 1.5,
        "ER_per_IP": 0.34615,
        "H_per_IP": 1.03846,
        "BB_per_IP": 0.46154,
        "SO_per_IP": 1.15385,
        "HR_per_IP": 0.11538
      }
    },
    "season": {
      "games": 30,
      "totals": {
        "IP": 27.0,
        "ER": 6.0,
        "R": 7.0,
        "H": 22.0,
        "BB": 12.0,
        "SO": 31.0,
        "HR": 2.0,
        "BF": 117.0,
        "Pitches": 448.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2333,
        "H": 0.7333,
        "BB": 0.4,
        "SO": 1.0333,
        "HR": 0.0667,
        "BF": 3.9,
        "Pitches": 14.9333
      },
      "rates": {
        "ERA": 2.0,
        "WHIP": 1.2593,
        "ER_per_IP": 0.22222,
        "H_per_IP": 0.81481,
        "BB_per_IP": 0.44444,
        "SO_per_IP": 1.14815,
        "HR_per_IP": 0.07407
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.427,
    "predicted_H": 0.942,
    "predicted_BB": 0.405,
    "predicted_SO": 1.03,
    "predicted_HR": 0.099,
    "predicted_ERA": 3.8447,
    "predicted_WHIP": 1.3466
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5539,
  "form_weight": 0.4461,
  "form_reliability": 0.5175,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.362,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5175,
    "prior_weight": 0.4825
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.427,
      "final": 0.1905,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.942,
      "final": 0.4203,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.405,
      "final": 0.1807,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 1.03,
      "final": 0.4595,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.099,
      "final": 0.0442,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.8447,
      "final": 3.8447,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.3466,
      "final": 1.3466,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherDevin Williams
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.3662
ESPN Rank508
Movement AvailableTrue
Primary Pitch-
Movement Score-0.0348
Avg Velo89.1068
Avg Spin2442.9373
HB Inches0
IVB Inches0
Release Extension0
Pre IP1.1000
Pre ER0
Pre H1
Pre BB0
Pre SO1
Season ERA4.2429
Season WHIP1.3286
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "NYM",
    "games": 81,
    "wins": 34,
    "losses": 47,
    "win_pct": 0.4198,
    "runs_scored": 318.0,
    "runs_allowed": 337.0,
    "run_differential": -19.0,
    "run_differential_per_game": -0.2346,
    "avg_runs_scored": 3.9259,
    "avg_runs_allowed": 4.1605,
    "offense_index": 0.8712,
    "defense_index": 1.0831,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 5.0,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.0968
  },
  "opponent": {
    "team": "PHI",
    "games": 81,
    "wins": 41,
    "losses": 40,
    "win_pct": 0.5062,
    "runs_scored": 328.0,
    "runs_allowed": 354.0,
    "run_differential": -26.0,
    "run_differential_per_game": -0.321,
    "avg_runs_scored": 4.0494,
    "avg_runs_allowed": 4.3704,
    "offense_index": 0.8986,
    "defense_index": 1.0311,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.1,
      "avg_runs_allowed": 4.6,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": 0.0011
  },
  "edges": {
    "quality_edge": -0.0979,
    "offense_edge": -0.1288,
    "opponent_offense_edge": -0.1014,
    "defense_strength": 0.0831,
    "opponent_defense_weakness": -0.0311,
    "recent_win_pct_edge": -0.1
  },
  "player_factors": {
    "ip": 1.0026,
    "run_prevention": 0.9804,
    "strikeout": 1.0052
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "642207",
    "profile": {
      "available": true,
      "pitcher_id": "642207",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 80.0,
        "k_percent": 35.9,
        "bb_percent": 13.6,
        "woba": 0.324,
        "xwoba": 0.272,
        "sweet_spot_percent": 34.6,
        "barrel_batted_rate": 7.7,
        "hard_hit_percent": 25.0,
        "avg_best_speed": 79.6207,
        "avg_hyper_speed": 92.7857,
        "whiff_percent": 39.5,
        "swing_percent": 50.1
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.5748,
        "command_and_miss": 1.3314,
        "regression_edge": 1.4857,
        "xwoba_edge": 1.2286,
        "barrel_edge": -0.0889,
        "hard_hit_edge": 1.9,
        "whiff_edge": 1.9714,
        "bb_edge": -1.1,
        "pitch_design_score": -0.0348
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "642207",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 34,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 34,
          "pitch_usage": 0.0,
          "release_speed": 89.10680032150675,
          "release_spin_rate": 2442.9373156663596,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 34,
            "pitch_usage": 0.0,
            "release_speed": 89.10680032150675,
            "release_spin_rate": 2442.9373156663596,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 89.1068,
          "release_spin_rate": 2442.9373,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.0348,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -0.2489,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.3662,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9689,
      "strikeout_factor": 1.0699,
      "walk_factor": 1.0396,
      "homer_factor": 0.9524,
      "woba_minus_xwoba": 0.052,
      "regression_flag": "positive_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "642207",
        "espn_id": 33224,
        "player_name": "Devin Williams",
        "team": "NYM",
        "role": "pitcher",
        "espn_rank": 508,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 508,
          "gp_value": 26.0,
          "gp_rank": 116,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 5.0142,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 2.0,
          "l_rank": 185,
          "sv_value": 10.0,
          "sv_rank": 16,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 23.1,
          "ip_rank": 341,
          "h_value": 21.0,
          "h_rank": 312,
          "er_value": 13.0,
          "er_rank": 243,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 14.0,
          "bb_rank": 209,
          "k_value": 37.0,
          "k_rank": 181,
          "k_per_9_value": 14.271429,
          "k_per_9_rank": 14,
          "whip_value": 1.5,
          "whip_rank": null,
          "war_value": -0.13,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.986,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.986,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0178,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9786,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 3.0,
        "factor": 1.0315,
        "adjusted": 3
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.2,
    "ER": 5,
    "H": 6,
    "BB": 7,
    "SO": 15,
    "HR": 1,
    "ERA": 4.655172413793104,
    "WHIP": 1.3448275862068966,
    "K9": 13.965517241379311,
    "HR9": 0.9310344827586208,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-12T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "642207",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 34,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 34,
    "pitch_usage": 0.0,
    "release_speed": 89.10680032150675,
    "release_spin_rate": 2442.9373156663596,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 34,
      "pitch_usage": 0.0,
      "release_speed": 89.10680032150675,
      "release_spin_rate": 2442.9373156663596,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 89.1068,
    "release_spin_rate": 2442.9373,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.0348,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -0.2489,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.634,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.481,
    "prior_weight": 0.519
  },
  "role": "pitcher",
  "player_id": "642207",
  "report_date": "20260618_N",
  "season_year": 2026,
  "rows_used": 25,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.1,
        "ER": 1.0,
        "R": 1.0,
        "H": 3.0,
        "BB": 1.0,
        "SO": 9.0,
        "HR": 0.0,
        "BF": 20.0,
        "Pitches": 95.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.6,
        "BB": 0.2,
        "SO": 1.8,
        "HR": 0.0,
        "BF": 4.0,
        "Pitches": 19.0
      },
      "rates": {
        "ERA": 1.6875,
        "WHIP": 0.75,
        "ER_per_IP": 0.1875,
        "H_per_IP": 0.5625,
        "BB_per_IP": 0.1875,
        "SO_per_IP": 1.6875,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.2,
        "ER": 5.0,
        "R": 5.0,
        "H": 6.0,
        "BB": 7.0,
        "SO": 15.0,
        "HR": 1.0,
        "BF": 41.0,
        "Pitches": 181.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.5,
        "R": 0.5,
        "H": 0.6,
        "BB": 0.7,
        "SO": 1.5,
        "HR": 0.1,
        "BF": 4.1,
        "Pitches": 18.1
      },
      "rates": {
        "ERA": 4.6552,
        "WHIP": 1.3448,
        "ER_per_IP": 0.51724,
        "H_per_IP": 0.62069,
        "BB_per_IP": 0.72414,
        "SO_per_IP": 1.55172,
        "HR_per_IP": 0.10345
      }
    },
    "season": {
      "games": 25,
      "totals": {
        "IP": 23.1,
        "ER": 11.0,
        "R": 11.0,
        "H": 20.0,
        "BB": 11.0,
        "SO": 37.0,
        "HR": 2.0,
        "BF": 98.0,
        "Pitches": 408.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.44,
        "R": 0.44,
        "H": 0.8,
        "BB": 0.44,
        "SO": 1.48,
        "HR": 0.08,
        "BF": 3.92,
        "Pitches": 16.32
      },
      "rates": {
        "ERA": 4.2429,
        "WHIP": 1.3286,
        "ER_per_IP": 0.47143,
        "H_per_IP": 0.85714,
        "BB_per_IP": 0.47143,
        "SO_per_IP": 1.58571,
        "HR_per_IP": 0.08571
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.433,
    "predicted_H": 0.814,
    "predicted_BB": 0.396,
    "predicted_SO": 1.266,
    "predicted_HR": 0.101,
    "predicted_ERA": 3.8969,
    "predicted_WHIP": 1.2106
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5693,
  "form_weight": 0.4307,
  "form_reliability": 0.481,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.634,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.481,
    "prior_weight": 0.519
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.433,
      "final": 0.1865,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.814,
      "final": 0.9199,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.396,
      "final": 0.1706,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 1.266,
      "final": 1.1146,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.101,
      "final": 0.0435,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.8969,
      "final": 3.8969,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2106,
      "final": 1.2106,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherLuke Weaver
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.1927
ESPN Rank79
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H1
Pre BB1
Pre SO0
Season ERA2.3226
Season WHIP0.9032
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "NYM",
    "games": 81,
    "wins": 34,
    "losses": 47,
    "win_pct": 0.4198,
    "runs_scored": 318.0,
    "runs_allowed": 337.0,
    "run_differential": -19.0,
    "run_differential_per_game": -0.2346,
    "avg_runs_scored": 3.9259,
    "avg_runs_allowed": 4.1605,
    "offense_index": 0.8712,
    "defense_index": 1.0831,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 5.0,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.0968
  },
  "opponent": {
    "team": "PHI",
    "games": 81,
    "wins": 41,
    "losses": 40,
    "win_pct": 0.5062,
    "runs_scored": 328.0,
    "runs_allowed": 354.0,
    "run_differential": -26.0,
    "run_differential_per_game": -0.321,
    "avg_runs_scored": 4.0494,
    "avg_runs_allowed": 4.3704,
    "offense_index": 0.8986,
    "defense_index": 1.0311,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.1,
      "avg_runs_allowed": 4.6,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": 0.0011
  },
  "edges": {
    "quality_edge": -0.0979,
    "offense_edge": -0.1288,
    "opponent_offense_edge": -0.1014,
    "defense_strength": 0.0831,
    "opponent_defense_weakness": -0.0311,
    "recent_win_pct_edge": -0.1
  },
  "player_factors": {
    "ip": 1.0026,
    "run_prevention": 0.9804,
    "strikeout": 1.0052
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "596133",
    "profile": {
      "available": true,
      "pitcher_id": "596133",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 95.0,
        "k_percent": 24.6,
        "bb_percent": 6.6,
        "woba": 0.228,
        "xwoba": 0.278,
        "sweet_spot_percent": 28.9,
        "barrel_batted_rate": 9.6,
        "hard_hit_percent": 31.3,
        "avg_best_speed": 79.538,
        "avg_hyper_speed": 93.0824,
        "whiff_percent": 28.0,
        "swing_percent": 51.8
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.8433,
        "command_and_miss": 0.38,
        "regression_edge": -1.4286,
        "xwoba_edge": 1.0571,
        "barrel_edge": -0.5111,
        "hard_hit_edge": 1.0,
        "whiff_edge": 0.3286,
        "bb_edge": 0.65,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "596133",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.1927,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9836,
      "strikeout_factor": 1.0113,
      "walk_factor": 0.9766,
      "homer_factor": 0.9861,
      "woba_minus_xwoba": -0.05,
      "regression_flag": "negative_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "596133",
        "espn_id": 33770,
        "player_name": "Luke Weaver",
        "team": "NYM",
        "role": "pitcher",
        "espn_rank": 79,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 79,
          "gp_value": 29.0,
          "gp_rank": 80,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.3225,
          "era_rank": null,
          "w_value": 2.0,
          "w_rank": 180,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 8.0,
          "hld_rank": 41,
          "ip_value": 31.0,
          "ip_rank": 235,
          "h_value": 20.0,
          "h_rank": 330,
          "er_value": 8.0,
          "er_rank": 396,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 8.0,
          "bb_rank": 360,
          "k_value": 30.0,
          "k_rank": 253,
          "k_per_9_value": 8.709678,
          "k_per_9_rank": 29,
          "whip_value": 0.9032,
          "whip_rank": null,
          "war_value": 1.13,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9926,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9926,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9895,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9937,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0051,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.2,
    "ER": 0,
    "H": 4,
    "BB": 1,
    "SO": 9,
    "HR": 0,
    "ERA": 0.0,
    "WHIP": 0.46875,
    "K9": 7.59375,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "596133",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.156,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5518,
    "prior_weight": 0.4482
  },
  "role": "pitcher",
  "player_id": "596133",
  "report_date": "20260618_N",
  "season_year": 2026,
  "rows_used": 29,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 1.0,
        "BB": 0.0,
        "SO": 5.0,
        "HR": 0.0,
        "BF": 17.0,
        "Pitches": 59.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.2,
        "BB": 0.0,
        "SO": 1.0,
        "HR": 0.0,
        "BF": 3.4,
        "Pitches": 11.8
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 0.2,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.2,
        "BB_per_IP": 0.0,
        "SO_per_IP": 1.0,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.2,
        "ER": 0.0,
        "R": 0.0,
        "H": 4.0,
        "BB": 1.0,
        "SO": 9.0,
        "HR": 0.0,
        "BF": 38.0,
        "Pitches": 131.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.4,
        "BB": 0.1,
        "SO": 0.9,
        "HR": 0.0,
        "BF": 3.8,
        "Pitches": 13.1
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 0.4688,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.375,
        "BB_per_IP": 0.09375,
        "SO_per_IP": 0.84375,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 29,
      "totals": {
        "IP": 31.0,
        "ER": 8.0,
        "R": 8.0,
        "H": 20.0,
        "BB": 8.0,
        "SO": 30.0,
        "HR": 2.0,
        "BF": 122.0,
        "Pitches": 461.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2759,
        "R": 0.2759,
        "H": 0.6897,
        "BB": 0.2759,
        "SO": 1.0345,
        "HR": 0.069,
        "BF": 4.2069,
        "Pitches": 15.8966
      },
      "rates": {
        "ERA": 2.3226,
        "WHIP": 0.9032,
        "ER_per_IP": 0.25806,
        "H_per_IP": 0.64516,
        "BB_per_IP": 0.25806,
        "SO_per_IP": 0.96774,
        "HR_per_IP": 0.06452
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.253,
    "predicted_H": 0.63,
    "predicted_BB": 0.209,
    "predicted_SO": 0.938,
    "predicted_HR": 0.073,
    "predicted_ERA": 2.2769,
    "predicted_WHIP": 0.8392
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5394,
  "form_weight": 0.4606,
  "form_reliability": 0.5518,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.156,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5518,
    "prior_weight": 0.4482
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.253,
      "final": 0.1165,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.63,
      "final": 0.8296,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 0.209,
      "final": 0.6356,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 0.938,
      "final": 0.4321,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.073,
      "final": 0.0336,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 2.2769,
      "final": 2.2769,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 0.8392,
      "final": 0.8392,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Jared Young (676724) · BATTER · 1B · Team NYM
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 45
All-history rows before 20260618: 45
System season_avg: 0.2440
Data season_avg (2026 season-to-date): 0.2846
Diff (system - data): -0.0406
System opponent_avg: 0.2440
System season_avg diverges from 2026 season-to-date by -0.0406. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1480.0000.000Hitting_2B0.2000.000-0.2000.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.0373.0003.000Hitting_AB2.8893.0000.1110.000
predicted_AVG0.2290.6670.333Hitting_AVG0.2850.0000.3820.667
predicted_BB0.2221.0000.000Hitting_BB0.2000.0000.8001.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.2602.0001.000Hitting_H0.8220.0001.1782.000
predicted_HR0.0500.0000.000Hitting_HR0.0890.000-0.0890.000
predicted_OBP0.2480.7500.333Hitting_OBP0.3330.0000.4170.750
predicted_R0.3701.0000.000Hitting_R0.3330.0000.6671.000
predicted_RBI0.1600.0000.000Hitting_RBI0.2890.000-0.2890.000
predicted_SLG0.3570.6670.333Hitting_SLG0.4460.0000.2210.667
predicted_SO0.7040.0001.000Hitting_SO0.5780.000-0.5780.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics3
Deboosted Metrics7
Better Metrics4
Worse Metrics6
Biggest Boostpredicted_H: 0.2600 -> 2.0000 (boost 1.7400, better)
Biggest Deboostpredicted_SO: 0.7040 -> 0.0000 (deboost -0.7040, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend43131predicted_H: 0.2600 -> 0.4173 (boost 0.1573, better)predicted_AVG: 0.2290 -> 0.2196 (deboost -0.0094, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.3541 -> 0.2448 (deboost -0.1093, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71607predicted_SO: 0.7123 -> 1.0000 (boost 0.2877, worse)predicted_H: 0.4080 -> 0.0000 (deboost -0.4080, worse)AB rounded to 3 (raw=3.15), rates preserved: AVG=0.130 HR/AB=0.023
5consistency_constraints21111predicted_H: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_R: 0.3494 -> 0.0000 (deboost -0.3494, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.1297 -> 0.3330 (boost 0.2033, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference43140predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.1297 (deboost -0.2033, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "676724",
  "player_name": "Jared Young",
  "position": "1B",
  "team": "NYM",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.148,
        "predicted_3B": 0.0,
        "predicted_AB": 3.037,
        "predicted_AVG": 0.229,
        "predicted_BB": 0.222,
        "predicted_H": 0.26,
        "predicted_HR": 0.05,
        "predicted_OBP": 0.248,
        "predicted_R": 0.37,
        "predicted_RBI": 0.16,
        "predicted_SLG": 0.357,
        "predicted_SO": 0.704
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1405,
        "predicted_3B": 0.0011,
        "predicted_AB": 3.145,
        "predicted_AVG": 0.2196,
        "predicted_BB": 0.2092,
        "predicted_H": 0.4173,
        "predicted_HBP": 0.04,
        "predicted_HR": 0.0748,
        "predicted_OBP": 0.2501,
        "predicted_R": 0.3629,
        "predicted_RBI": 0.2364,
        "predicted_SLG": 0.3541,
        "predicted_SO": 0.7066
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.148,
          "after": 0.1405,
          "delta": -0.0075,
          "percent_delta": -0.0507,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0011,
          "delta": 0.0011,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.037,
          "after": 3.145,
          "delta": 0.108,
          "percent_delta": 0.0356,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.229,
          "after": 0.2196,
          "delta": -0.0094,
          "percent_delta": -0.041,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.222,
          "after": 0.2092,
          "delta": -0.0128,
          "percent_delta": -0.0577,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.26,
          "after": 0.4173,
          "delta": 0.1573,
          "percent_delta": 0.605,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.05,
          "after": 0.0748,
          "delta": 0.0248,
          "percent_delta": 0.496,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.248,
          "after": 0.2501,
          "delta": 0.0021,
          "percent_delta": 0.0085,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.37,
          "after": 0.3629,
          "delta": -0.0071,
          "percent_delta": -0.0192,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.16,
          "after": 0.2364,
          "delta": 0.0764,
          "percent_delta": 0.4775,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.357,
          "after": 0.3541,
          "delta": -0.0029,
          "percent_delta": -0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.704,
          "after": 0.7066,
          "delta": 0.0026,
          "percent_delta": 0.0037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.26,
          "after": 0.4173,
          "delta": 0.1573,
          "percent_delta": 0.605,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.229,
          "after": 0.2196,
          "delta": -0.0094,
          "percent_delta": -0.041,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 27
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1405,
        "predicted_3B": 0.0011,
        "predicted_AB": 3.145,
        "predicted_AVG": 0.1297,
        "predicted_BB": 0.2075,
        "predicted_H": 0.408,
        "predicted_HBP": 0.04,
        "predicted_HR": 0.073,
        "predicted_OBP": 0.1836,
        "predicted_R": 0.3494,
        "predicted_RBI": 0.2276,
        "predicted_SLG": 0.2448,
        "predicted_SO": 0.7123
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1405,
          "after": 0.1405,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0011,
          "after": 0.0011,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.145,
          "after": 3.145,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2196,
          "after": 0.1297,
          "delta": -0.0899,
          "percent_delta": -0.4094,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2092,
          "after": 0.2075,
          "delta": -0.0017,
          "percent_delta": -0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.4173,
          "after": 0.408,
          "delta": -0.0093,
          "percent_delta": -0.0223,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.04,
          "after": 0.04,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0748,
          "after": 0.073,
          "delta": -0.0018,
          "percent_delta": -0.0241,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2501,
          "after": 0.1836,
          "delta": -0.0665,
          "percent_delta": -0.2659,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3629,
          "after": 0.3494,
          "delta": -0.0135,
          "percent_delta": -0.0372,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2364,
          "after": 0.2276,
          "delta": -0.0088,
          "percent_delta": -0.0372,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3541,
          "after": 0.2448,
          "delta": -0.1093,
          "percent_delta": -0.3087,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7066,
          "after": 0.7123,
          "delta": 0.0057,
          "percent_delta": 0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3541,
          "after": 0.2448,
          "delta": -0.1093,
          "percent_delta": -0.3087,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.15), rates preserved: AVG=0.130 HR/AB=0.023",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1405,
          "after": 0.0,
          "delta": -0.1405,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0011,
          "after": 0.0,
          "delta": -0.0011,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.145,
          "after": 3.0,
          "delta": -0.145,
          "percent_delta": -0.0461,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2075,
          "after": 0.0,
          "delta": -0.2075,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.408,
          "after": 0.0,
          "delta": -0.408,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.04,
          "after": 0.0,
          "delta": -0.04,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.073,
          "after": 0.0,
          "delta": -0.073,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2276,
          "after": 0.0,
          "delta": -0.2276,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7123,
          "after": 1.0,
          "delta": 0.2877,
          "percent_delta": 0.4039,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 0,
        "worse_metrics": 7,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.7123,
          "after": 1.0,
          "delta": 0.2877,
          "percent_delta": 0.4039,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 0.408,
          "after": 0.0,
          "delta": -0.408,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3494,
          "after": 0.0,
          "delta": -0.3494,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3494,
          "after": 0.0,
          "delta": -0.3494,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1297,
          "after": 0.333,
          "delta": 0.2033,
          "percent_delta": 1.5675,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.1836,
          "after": 0.333,
          "delta": 0.1494,
          "percent_delta": 0.8137,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2448,
          "after": 0.333,
          "delta": 0.0882,
          "percent_delta": 0.3603,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1297,
          "after": 0.333,
          "delta": 0.2033,
          "percent_delta": 1.5675,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 4,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.1297,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_FB": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.1836,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.2448,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1297,
          "delta": -0.2033,
          "percent_delta": -0.6104,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.1836,
          "delta": -0.1494,
          "percent_delta": -0.4487,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.2448,
          "delta": -0.0882,
          "percent_delta": -0.2649,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1297,
          "delta": -0.2033,
          "percent_delta": -0.6104,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.148,
        "after": 0.0,
        "delta": -0.148,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.037,
        "after": 3.0,
        "delta": -0.037,
        "percent_delta": -0.0122,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AVG",
        "before": 0.229,
        "after": 0.1297,
        "delta": -0.0993,
        "percent_delta": -0.4336,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.222,
        "after": 1.0,
        "delta": 0.778,
        "percent_delta": 3.5045,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.26,
        "after": 2.0,
        "delta": 1.74,
        "percent_delta": 6.6923,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.05,
        "after": 0.0,
        "delta": -0.05,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.248,
        "after": 0.1836,
        "delta": -0.0644,
        "percent_delta": -0.2597,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.37,
        "after": 1.0,
        "delta": 0.63,
        "percent_delta": 1.7027,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.16,
        "after": 0.0,
        "delta": -0.16,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.357,
        "after": 0.2448,
        "delta": -0.1122,
        "percent_delta": -0.3143,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.704,
        "after": 0.0,
        "delta": -0.704,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 3,
      "deboosted_metrics": 7,
      "better_metrics": 4,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 0.26,
        "after": 2.0,
        "delta": 1.74,
        "percent_delta": 6.6923,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.704,
        "after": 0.0,
        "delta": -0.704,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.148-
predicted_3B0.000-
predicted_AB3.037-
predicted_AVG0.229-
predicted_BB0.222-
predicted_H0.260-
predicted_HR0.050-
predicted_OBP0.248-
predicted_R0.370-
predicted_RBI0.160-
predicted_SLG0.357-
predicted_SO0.704-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.141-0.007
predicted_3B0.0010.001
predicted_AB3.1450.108
predicted_AVG0.220-0.009
predicted_BB0.209-0.013
predicted_H0.4170.157
predicted_HBP0.040-
predicted_HR0.0750.025
predicted_OBP0.2500.002
predicted_R0.363-0.007
predicted_RBI0.2360.076
predicted_SLG0.354-0.003
predicted_SO0.7070.003
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1410.000
predicted_3B0.0010.000
predicted_AB3.1450.000
predicted_AVG0.130-0.090
predicted_BB0.207-0.002
predicted_H0.408-0.009
predicted_HBP0.0400.000
predicted_HR0.073-0.002
predicted_OBP0.184-0.066
predicted_R0.349-0.014
predicted_RBI0.228-0.009
predicted_SLG0.245-0.109
predicted_SO0.7120.006
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.15), rates preserved: AVG=0.130 HR/AB=0.023

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H0.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0001.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.141
predicted_3B0.000-0.001
predicted_AB3.000-0.145
predicted_AVG0.3330.203
predicted_BB0.000-0.207
predicted_H1.0000.592
predicted_HR0.000-0.073
predicted_OBP0.3330.149
predicted_R0.000-0.349
predicted_RBI0.000-0.228
predicted_SLG0.3330.088
predicted_SO1.0000.288
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 27
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-16.0001.0000.0000.0000.0001.0001.0000.0003.0000.06250.06250.06250.06250.00000.06250.00000.1875
last_100.2010-34.0005.0001.0000.0001.0004.0002.0001.0006.0000.14710.19440.26470.14710.02940.11770.02940.1765
season0.6027-82.00020.0004.0000.0004.0009.00010.0006.00019.0000.24390.30340.43900.24390.04880.10980.07320.2317
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1280
predicted_3B0.0030
predicted_AB3.3240
predicted_AVG0.2040
predicted_BB0.1880
predicted_H0.6780
predicted_HBP0.0400
predicted_HR0.1160
predicted_OBP0.2536
predicted_R0.3510
predicted_RBI0.3630
predicted_SLG0.3492
predicted_SO0.7110
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.14800.12800.1405model_form_blend
predicted_3B0.00000.00300.0011model_form_blend
predicted_AB3.03703.32403.1450model_form_blend
predicted_AVG0.22900.20400.2196model_form_blend
predicted_BB0.22200.18800.2092model_form_blend
predicted_H0.26000.67800.4173model_form_blend
predicted_HBP-0.04000.0400form_only
predicted_HR0.05000.11600.0748model_form_blend
predicted_OBP0.24800.25360.2501model_form_blend
predicted_R0.37000.35100.3629model_form_blend
predicted_RBI0.16000.36300.2364model_form_blend
predicted_SLG0.35700.34920.3541model_form_blend
predicted_SO0.70400.71100.7066model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date45
Season rows before report date45
Report year2026
Profile rows used27
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H2
2B0
3B0
HR0
R1
RBI0
BB1
SO0
SF0
HBP0
season_avg0.244

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP1
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B-LF
gameID20260616_NYM@CIN
game_typefull
mlbID676724
playerID676724
playerNameJared Young
pos1B
startedTrue
startingPosition1B
teamNYM
teamID18
game_date2026-06-16
sl_k_percent20.9
sl_bb_percent7.7
sl_woba0.326
sl_xwoba0.34
sl_xba0.246
sl_xslg0.447
sl_sweet_spot_percent26.6
sl_barrel_batted_rate12.5
sl_hard_hit_percent46.9
sl_exit_velocity_avg90.3
sl_launch_angle_avg9.3
sl_whiff_percent26.6
sl_swing_percent47.7
Bo Bichette (666182) · BATTER · SS · Team NYM
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 260
All-history rows before 20260618: 260
System season_avg: 0.2530
Data season_avg (2026 season-to-date): 0.2361
Diff (system - data): 0.0169
System opponent_avg: 0.4000
System season_avg diverges from 2026 season-to-date by 0.0169. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1510.0000.000Hitting_2B0.1310.000-0.1310.000
predicted_3B0.0140.0000.000Hitting_3B0.0040.000-0.0040.000
predicted_AB4.4704.0004.000Hitting_AB4.1384.000-0.1380.000
predicted_AVG0.2640.2500.250Hitting_AVG0.2360.7500.014-0.500
predicted_BB0.2600.0000.000Hitting_BB0.2771.000-0.277-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H1.1801.0001.000Hitting_H0.9773.0000.023-2.000
predicted_HR0.1401.0000.000Hitting_HR0.1040.0000.8961.000
predicted_OBP0.3460.2500.250Hitting_OBP0.2820.800-0.032-0.550
predicted_R0.5341.0001.000Hitting_R0.4853.0000.515-2.000
predicted_RBI0.6003.0001.000Hitting_RBI0.5621.0002.4382.000
predicted_SLG0.4521.0000.250Hitting_SLG0.3450.7500.6550.250
predicted_SO0.7672.0001.000Hitting_SO0.7810.0001.2192.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics5
Deboosted Metrics6
Better Metrics4
Worse Metrics7
Biggest Boostpredicted_RBI: 0.6000 -> 3.0000 (boost 2.4000, better)
Biggest Deboostpredicted_AB: 4.4700 -> 4.0000 (deboost -0.4700, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend76161predicted_H: 1.1800 -> 1.2620 (boost 0.0820, better)predicted_AB: 4.4700 -> 4.3480 (deboost -0.1220, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.4679 -> 0.4269 (deboost -0.0410, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_RBI: 0.5846 -> 1.0000 (boost 0.4154, better)predicted_AB: 4.3480 -> 4.0000 (deboost -0.3480, worse)AB rounded to 4 (raw=4.47), rates preserved: AVG=0.276 HR/AB=0.029
5bvp_blend00000--Sample-size BvP blend (BvP AB=10.0, weight=0.100, BvP AVG=0.400)
6consistency_constraints11010predicted_R: 0.5927 -> 1.0000 (boost 0.4073, better)-Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context30303-predicted_SLG: 0.4269 -> 0.2500 (deboost -0.1769, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference33021predicted_RBI: 1.0000 -> 3.0000 (boost 2.0000, better)-Attached simulation box score without overwriting model prediction
9current_json_final33030predicted_SLG: 0.2500 -> 0.4269 (boost 0.1769, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "666182",
  "player_name": "Bo Bichette",
  "position": "SS",
  "team": "NYM",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.151,
        "predicted_3B": 0.014,
        "predicted_AB": 4.47,
        "predicted_AVG": 0.264,
        "predicted_BB": 0.26,
        "predicted_H": 1.18,
        "predicted_HR": 0.14,
        "predicted_OBP": 0.346,
        "predicted_R": 0.534,
        "predicted_RBI": 0.6,
        "predicted_SLG": 0.452,
        "predicted_SO": 0.767
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2033,
        "predicted_3B": 0.0119,
        "predicted_AB": 4.348,
        "predicted_AVG": 0.2913,
        "predicted_BB": 0.2456,
        "predicted_H": 1.262,
        "predicted_HBP": 0.011,
        "predicted_HR": 0.1349,
        "predicted_OBP": 0.3528,
        "predicted_R": 0.6156,
        "predicted_RBI": 0.6072,
        "predicted_SLG": 0.4679,
        "predicted_SO": 0.7836
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.151,
          "after": 0.2033,
          "delta": 0.0523,
          "percent_delta": 0.3464,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.014,
          "after": 0.0119,
          "delta": -0.0021,
          "percent_delta": -0.15,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.47,
          "after": 4.348,
          "delta": -0.122,
          "percent_delta": -0.0273,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.264,
          "after": 0.2913,
          "delta": 0.0273,
          "percent_delta": 0.1034,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.26,
          "after": 0.2456,
          "delta": -0.0144,
          "percent_delta": -0.0554,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.18,
          "after": 1.262,
          "delta": 0.082,
          "percent_delta": 0.0695,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.14,
          "after": 0.1349,
          "delta": -0.0051,
          "percent_delta": -0.0364,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.346,
          "after": 0.3528,
          "delta": 0.0068,
          "percent_delta": 0.0197,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.534,
          "after": 0.6156,
          "delta": 0.0816,
          "percent_delta": 0.1528,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6,
          "after": 0.6072,
          "delta": 0.0072,
          "percent_delta": 0.012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.452,
          "after": 0.4679,
          "delta": 0.0159,
          "percent_delta": 0.0352,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.767,
          "after": 0.7836,
          "delta": 0.0166,
          "percent_delta": 0.0216,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 6,
        "deboosted_metrics": 1,
        "better_metrics": 6,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 1.18,
          "after": 1.262,
          "delta": 0.082,
          "percent_delta": 0.0695,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.47,
          "after": 4.348,
          "delta": -0.122,
          "percent_delta": -0.0273,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 73
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2033,
        "predicted_3B": 0.0119,
        "predicted_AB": 4.348,
        "predicted_AVG": 0.2838,
        "predicted_BB": 0.2436,
        "predicted_H": 1.2339,
        "predicted_HBP": 0.011,
        "predicted_HR": 0.1317,
        "predicted_OBP": 0.3218,
        "predicted_R": 0.5927,
        "predicted_RBI": 0.5846,
        "predicted_SLG": 0.4269,
        "predicted_SO": 0.7899
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2033,
          "after": 0.2033,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0119,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.348,
          "after": 4.348,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2913,
          "after": 0.2838,
          "delta": -0.0075,
          "percent_delta": -0.0257,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2456,
          "after": 0.2436,
          "delta": -0.002,
          "percent_delta": -0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.262,
          "after": 1.2339,
          "delta": -0.0281,
          "percent_delta": -0.0223,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.011,
          "after": 0.011,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1349,
          "after": 0.1317,
          "delta": -0.0032,
          "percent_delta": -0.0237,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3528,
          "after": 0.3218,
          "delta": -0.031,
          "percent_delta": -0.0879,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.6156,
          "after": 0.5927,
          "delta": -0.0229,
          "percent_delta": -0.0372,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6072,
          "after": 0.5846,
          "delta": -0.0226,
          "percent_delta": -0.0372,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4679,
          "after": 0.4269,
          "delta": -0.041,
          "percent_delta": -0.0876,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7836,
          "after": 0.7899,
          "delta": 0.0063,
          "percent_delta": 0.008,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4679,
          "after": 0.4269,
          "delta": -0.041,
          "percent_delta": -0.0876,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.47), rates preserved: AVG=0.276 HR/AB=0.029",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2033,
          "after": 0.0,
          "delta": -0.2033,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0,
          "delta": -0.0119,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.348,
          "after": 4.0,
          "delta": -0.348,
          "percent_delta": -0.08,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2436,
          "after": 0.0,
          "delta": -0.2436,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.2339,
          "after": 1.0,
          "delta": -0.2339,
          "percent_delta": -0.1896,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.011,
          "after": 0.0,
          "delta": -0.011,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1317,
          "after": 0.0,
          "delta": -0.1317,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5846,
          "after": 1.0,
          "delta": 0.4154,
          "percent_delta": 0.7106,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7899,
          "after": 1.0,
          "delta": 0.2101,
          "percent_delta": 0.266,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.5846,
          "after": 1.0,
          "delta": 0.4154,
          "percent_delta": 0.7106,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.348,
          "after": 4.0,
          "delta": -0.348,
          "percent_delta": -0.08,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=10.0, weight=0.100, BvP AVG=0.400)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9,
        "bvp": 0.1
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5927,
          "after": 1.0,
          "delta": 0.4073,
          "percent_delta": 0.6872,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5927,
          "after": 1.0,
          "delta": 0.4073,
          "percent_delta": 0.6872,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2838,
          "after": 0.25,
          "delta": -0.0338,
          "percent_delta": -0.1191,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3218,
          "after": 0.25,
          "delta": -0.0718,
          "percent_delta": -0.2231,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4269,
          "after": 0.25,
          "delta": -0.1769,
          "percent_delta": -0.4144,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4269,
          "after": 0.25,
          "delta": -0.1769,
          "percent_delta": -0.4144,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_R": 1.0,
        "predicted_RBI": 3.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2838,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_OBP": 0.3218,
        "predicted_R": 1.0,
        "predicted_RBI": 3.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4269,
        "predicted_SO": 2.0,
        "predicted_SS": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2838,
          "delta": 0.0338,
          "percent_delta": 0.1351,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3218,
          "delta": 0.0718,
          "percent_delta": 0.2871,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4269,
          "delta": 0.1769,
          "percent_delta": 0.7076,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4269,
          "delta": 0.1769,
          "percent_delta": 0.7076,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.151,
        "after": 0.0,
        "delta": -0.151,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.014,
        "after": 0.0,
        "delta": -0.014,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.47,
        "after": 4.0,
        "delta": -0.47,
        "percent_delta": -0.1051,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.264,
        "after": 0.2838,
        "delta": 0.0198,
        "percent_delta": 0.075,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.26,
        "after": 0.0,
        "delta": -0.26,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.18,
        "after": 1.0,
        "delta": -0.18,
        "percent_delta": -0.1525,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.14,
        "after": 1.0,
        "delta": 0.86,
        "percent_delta": 6.1429,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.346,
        "after": 0.3218,
        "delta": -0.0242,
        "percent_delta": -0.0699,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.534,
        "after": 1.0,
        "delta": 0.466,
        "percent_delta": 0.8727,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.6,
        "after": 3.0,
        "delta": 2.4,
        "percent_delta": 4.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.452,
        "after": 0.4269,
        "delta": -0.0251,
        "percent_delta": -0.0555,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.767,
        "after": 2.0,
        "delta": 1.233,
        "percent_delta": 1.6076,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 5,
      "deboosted_metrics": 6,
      "better_metrics": 4,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_RBI",
        "before": 0.6,
        "after": 3.0,
        "delta": 2.4,
        "percent_delta": 4.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 4.47,
        "after": 4.0,
        "delta": -0.47,
        "percent_delta": -0.1051,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.151-
predicted_3B0.014-
predicted_AB4.470-
predicted_AVG0.264-
predicted_BB0.260-
predicted_H1.180-
predicted_HR0.140-
predicted_OBP0.346-
predicted_R0.534-
predicted_RBI0.600-
predicted_SLG0.452-
predicted_SO0.767-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2030.052
predicted_3B0.012-0.002
predicted_AB4.348-0.122
predicted_AVG0.2910.027
predicted_BB0.246-0.014
predicted_H1.2620.082
predicted_HBP0.011-
predicted_HR0.135-0.005
predicted_OBP0.3530.007
predicted_R0.6160.082
predicted_RBI0.6070.007
predicted_SLG0.4680.016
predicted_SO0.7840.017
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2030.000
predicted_3B0.0120.000
predicted_AB4.3480.000
predicted_AVG0.284-0.008
predicted_BB0.244-0.002
predicted_H1.234-0.028
predicted_HBP0.0110.000
predicted_HR0.132-0.003
predicted_OBP0.322-0.031
predicted_R0.593-0.023
predicted_RBI0.585-0.023
predicted_SLG0.427-0.041
predicted_SO0.7900.006
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.47), rates preserved: AVG=0.276 HR/AB=0.029

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=10.0, weight=0.100, BvP AVG=0.400)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI1.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.203
predicted_3B0.000-0.012
predicted_AB4.000-0.348
predicted_AVG0.250-0.034
predicted_BB0.000-0.244
predicted_H1.000-0.234
predicted_HR0.000-0.132
predicted_OBP0.250-0.072
predicted_R1.0000.407
predicted_RBI1.0000.415
predicted_SLG0.250-0.177
predicted_SO1.0000.210
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR1.0001.000
PA4.000-
R1.0000.000
RBI3.0002.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 73
Reference playing time: 4.470
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-23.00012.0003.0000.0000.0002.0006.0001.0004.0000.52170.54170.65220.52170.00000.08700.04350.1739
last_100.2010-43.00017.0004.0000.0003.00010.00010.0001.0009.0000.39530.40000.69770.39530.06980.23260.02330.2093
season0.6073-296.00075.00011.0001.0008.00042.00039.00019.00056.0000.25340.29690.37840.25340.02700.14190.06420.1892
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2740
predicted_3B0.0090
predicted_AB4.1830
predicted_AVG0.3282
predicted_BB0.2260
predicted_H1.3730
predicted_HBP0.0110
predicted_HR0.1280
predicted_OBP0.3619
predicted_R0.7260
predicted_RBI0.6170
predicted_SLG0.4895
predicted_SO0.8060
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.15100.27400.2033model_form_blend
predicted_3B0.01400.00900.0119model_form_blend
predicted_AB4.47004.18304.3480model_form_blend
predicted_AVG0.26400.32820.2913model_form_blend
predicted_BB0.26000.22600.2456model_form_blend
predicted_H1.18001.37301.2620model_form_blend
predicted_HBP-0.01100.0110form_only
predicted_HR0.14000.12800.1349model_form_blend
predicted_OBP0.34600.36190.3528model_form_blend
predicted_R0.53400.72600.6156model_form_blend
predicted_RBI0.60000.61700.6072model_form_blend
predicted_SLG0.45200.48950.4679model_form_blend
predicted_SO0.76700.80600.7836model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date260
Season rows before report date260
Report year2026
Profile rows used73
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR1
R1
RBI3
BB0
SO2
SF0
HBP0
season_avg0.253

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.75
Hitting_BB1
Hitting_GIDP0
Hitting_H3
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R3
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB3
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260617_NYM@CIN
game_typefull
mlbID666182
playerID666182
playerNameBo Bichette
pos3B
startedTrue
startingPosition3B
teamNYM
teamID18
game_date2026-06-17
sl_k_percent17.3
sl_bb_percent6.2
sl_woba0.299
sl_xwoba0.334
sl_xba0.287
sl_xslg0.436
sl_sweet_spot_percent35.2
sl_barrel_batted_rate7.3
sl_hard_hit_percent45.3
sl_exit_velocity_avg90.7
sl_launch_angle_avg7.9
sl_whiff_percent17.5
sl_swing_percent53.4
Carson Benge (701807) · BATTER · RF · Team NYM
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 219
All-history rows before 20260618: 219
System season_avg: 0.2510
Data season_avg (2026 season-to-date): 0.2625
Diff (system - data): -0.0115
System opponent_avg: 0.2510

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1300.0000.000Hitting_2B0.1510.000-0.1510.000
predicted_3B0.0290.0000.000Hitting_3B0.0091.000-0.009-1.000
predicted_AB4.2105.0004.000Hitting_AB3.8265.0001.1740.000
predicted_AVG0.2360.2000.250Hitting_AVG0.2630.200-0.0630.000
predicted_BB0.2750.0000.000Hitting_BB0.3060.000-0.3060.000
predicted_CS-0.0000.000BaseRunning_CS0.0460.000-0.0460.000
predicted_H0.9901.0001.000Hitting_H1.0051.000-0.0050.000
predicted_HR0.1200.0000.000Hitting_HR0.0680.000-0.0680.000
predicted_OBP0.3040.2000.250Hitting_OBP0.3300.200-0.1300.000
predicted_R0.5511.0001.000Hitting_R0.5801.0000.4200.000
predicted_RBI0.3701.0000.000Hitting_RBI0.4660.0000.5341.000
predicted_SLG0.3900.2000.250Hitting_SLG0.3600.600-0.160-0.400
predicted_SO0.8840.0001.000Hitting_SO0.8360.000-0.8360.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics3
Deboosted Metrics6
Better Metrics4
Worse Metrics5
Biggest Boostpredicted_AB: 4.2100 -> 5.0000 (boost 0.7900, better)
Biggest Deboostpredicted_SO: 0.8840 -> 0.0000 (deboost -0.8840, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend20202-predicted_AB: 4.2100 -> 4.1054 (deboost -0.1046, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3027 -> 0.2806 (deboost -0.0221, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling81708predicted_SO: 0.8869 -> 1.0000 (boost 0.1131, worse)predicted_RBI: 0.3278 -> 0.0000 (deboost -0.3278, worse)AB rounded to 4 (raw=4.21), rates preserved: AVG=0.226 HR/AB=0.025
5consistency_constraints11010predicted_R: 0.5297 -> 1.0000 (boost 0.4703, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2320 -> 0.2500 (boost 0.0180, better)predicted_SLG: 0.3614 -> 0.2500 (deboost -0.1114, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference32130predicted_AB: 4.0000 -> 5.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.2500 -> 0.3614 (boost 0.1114, better)predicted_AVG: 0.2500 -> 0.2320 (deboost -0.0180, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "701807",
  "player_name": "Carson Benge",
  "position": "RF",
  "team": "NYM",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.13,
        "predicted_3B": 0.029,
        "predicted_AB": 4.21,
        "predicted_AVG": 0.236,
        "predicted_BB": 0.275,
        "predicted_H": 0.99,
        "predicted_HR": 0.12,
        "predicted_OBP": 0.304,
        "predicted_R": 0.551,
        "predicted_RBI": 0.37,
        "predicted_SLG": 0.39,
        "predicted_SO": 0.884
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1144,
        "predicted_3B": 0.0526,
        "predicted_AB": 4.1054,
        "predicted_AVG": 0.2379,
        "predicted_BB": 0.2796,
        "predicted_H": 0.974,
        "predicted_HBP": 0.054,
        "predicted_HR": 0.1065,
        "predicted_OBP": 0.3027,
        "predicted_R": 0.5502,
        "predicted_RBI": 0.3405,
        "predicted_SLG": 0.383,
        "predicted_SO": 0.8798
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.13,
          "after": 0.1144,
          "delta": -0.0156,
          "percent_delta": -0.12,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.029,
          "after": 0.0526,
          "delta": 0.0236,
          "percent_delta": 0.8138,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.21,
          "after": 4.1054,
          "delta": -0.1046,
          "percent_delta": -0.0248,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.236,
          "after": 0.2379,
          "delta": 0.0019,
          "percent_delta": 0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.275,
          "after": 0.2796,
          "delta": 0.0046,
          "percent_delta": 0.0167,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.99,
          "after": 0.974,
          "delta": -0.016,
          "percent_delta": -0.0162,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.12,
          "after": 0.1065,
          "delta": -0.0135,
          "percent_delta": -0.1125,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.304,
          "after": 0.3027,
          "delta": -0.0013,
          "percent_delta": -0.0043,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.551,
          "after": 0.5502,
          "delta": -0.0008,
          "percent_delta": -0.0015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.37,
          "after": 0.3405,
          "delta": -0.0295,
          "percent_delta": -0.0797,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.39,
          "after": 0.383,
          "delta": -0.007,
          "percent_delta": -0.0179,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.884,
          "after": 0.8798,
          "delta": -0.0042,
          "percent_delta": -0.0048,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.21,
          "after": 4.1054,
          "delta": -0.1046,
          "percent_delta": -0.0248,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 69
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1144,
        "predicted_3B": 0.0526,
        "predicted_AB": 4.1054,
        "predicted_AVG": 0.232,
        "predicted_BB": 0.2773,
        "predicted_H": 0.9523,
        "predicted_HBP": 0.054,
        "predicted_HR": 0.104,
        "predicted_OBP": 0.2806,
        "predicted_R": 0.5297,
        "predicted_RBI": 0.3278,
        "predicted_SLG": 0.3614,
        "predicted_SO": 0.8869
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1144,
          "after": 0.1144,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0526,
          "after": 0.0526,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.1054,
          "after": 4.1054,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2379,
          "after": 0.232,
          "delta": -0.0059,
          "percent_delta": -0.0248,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2796,
          "after": 0.2773,
          "delta": -0.0023,
          "percent_delta": -0.0082,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.974,
          "after": 0.9523,
          "delta": -0.0217,
          "percent_delta": -0.0223,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.054,
          "after": 0.054,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1065,
          "after": 0.104,
          "delta": -0.0025,
          "percent_delta": -0.0235,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3027,
          "after": 0.2806,
          "delta": -0.0221,
          "percent_delta": -0.073,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5502,
          "after": 0.5297,
          "delta": -0.0205,
          "percent_delta": -0.0373,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3405,
          "after": 0.3278,
          "delta": -0.0127,
          "percent_delta": -0.0373,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.383,
          "after": 0.3614,
          "delta": -0.0216,
          "percent_delta": -0.0564,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8798,
          "after": 0.8869,
          "delta": 0.0071,
          "percent_delta": 0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3027,
          "after": 0.2806,
          "delta": -0.0221,
          "percent_delta": -0.073,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.21), rates preserved: AVG=0.226 HR/AB=0.025",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1144,
          "after": 0.0,
          "delta": -0.1144,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0526,
          "after": 0.0,
          "delta": -0.0526,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AB",
          "before": 4.1054,
          "after": 4.0,
          "delta": -0.1054,
          "percent_delta": -0.0257,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2773,
          "after": 0.0,
          "delta": -0.2773,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9523,
          "after": 1.0,
          "delta": 0.0477,
          "percent_delta": 0.0501,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.054,
          "after": 0.0,
          "delta": -0.054,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.104,
          "after": 0.0,
          "delta": -0.104,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3278,
          "after": 0.0,
          "delta": -0.3278,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8869,
          "after": 1.0,
          "delta": 0.1131,
          "percent_delta": 0.1275,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 1,
        "deboosted_metrics": 7,
        "better_metrics": 0,
        "worse_metrics": 8,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.8869,
          "after": 1.0,
          "delta": 0.1131,
          "percent_delta": 0.1275,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3278,
          "after": 0.0,
          "delta": -0.3278,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5297,
          "after": 1.0,
          "delta": 0.4703,
          "percent_delta": 0.8879,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5297,
          "after": 1.0,
          "delta": 0.4703,
          "percent_delta": 0.8879,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.232,
          "after": 0.25,
          "delta": 0.018,
          "percent_delta": 0.0776,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2806,
          "after": 0.25,
          "delta": -0.0306,
          "percent_delta": -0.1091,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3614,
          "after": 0.25,
          "delta": -0.1114,
          "percent_delta": -0.3082,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.232,
          "after": 0.25,
          "delta": 0.018,
          "percent_delta": 0.0776,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3614,
          "after": 0.25,
          "delta": -0.1114,
          "percent_delta": -0.3082,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 5.0,
          "delta": 1.0,
          "percent_delta": 0.25,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 5.0,
          "delta": 1.0,
          "percent_delta": 0.25,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.232,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2806,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_RF": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3614,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.232,
          "delta": -0.018,
          "percent_delta": -0.0722,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2806,
          "delta": 0.0306,
          "percent_delta": 0.1222,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3614,
          "delta": 0.1114,
          "percent_delta": 0.4458,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3614,
          "delta": 0.1114,
          "percent_delta": 0.4458,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.232,
          "delta": -0.018,
          "percent_delta": -0.0722,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.13,
        "after": 0.0,
        "delta": -0.13,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.029,
        "after": 0.0,
        "delta": -0.029,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.21,
        "after": 5.0,
        "delta": 0.79,
        "percent_delta": 0.1876,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.236,
        "after": 0.232,
        "delta": -0.004,
        "percent_delta": -0.0169,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.275,
        "after": 0.0,
        "delta": -0.275,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.99,
        "after": 1.0,
        "delta": 0.01,
        "percent_delta": 0.0101,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.12,
        "after": 0.0,
        "delta": -0.12,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.304,
        "after": 0.2806,
        "delta": -0.0234,
        "percent_delta": -0.077,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.551,
        "after": 1.0,
        "delta": 0.449,
        "percent_delta": 0.8149,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.37,
        "after": 1.0,
        "delta": 0.63,
        "percent_delta": 1.7027,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.39,
        "after": 0.3614,
        "delta": -0.0286,
        "percent_delta": -0.0733,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.884,
        "after": 0.0,
        "delta": -0.884,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 3,
      "deboosted_metrics": 6,
      "better_metrics": 4,
      "worse_metrics": 5,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 4.21,
        "after": 5.0,
        "delta": 0.79,
        "percent_delta": 0.1876,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.884,
        "after": 0.0,
        "delta": -0.884,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.130-
predicted_3B0.029-
predicted_AB4.210-
predicted_AVG0.236-
predicted_BB0.275-
predicted_H0.990-
predicted_HR0.120-
predicted_OBP0.304-
predicted_R0.551-
predicted_RBI0.370-
predicted_SLG0.390-
predicted_SO0.884-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.114-0.016
predicted_3B0.0530.024
predicted_AB4.105-0.105
predicted_AVG0.2380.002
predicted_BB0.2800.005
predicted_H0.974-0.016
predicted_HBP0.054-
predicted_HR0.106-0.013
predicted_OBP0.303-0.001
predicted_R0.550-0.001
predicted_RBI0.341-0.029
predicted_SLG0.383-0.007
predicted_SO0.880-0.004
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1140.000
predicted_3B0.0530.000
predicted_AB4.1050.000
predicted_AVG0.232-0.006
predicted_BB0.277-0.002
predicted_H0.952-0.022
predicted_HBP0.0540.000
predicted_HR0.104-0.003
predicted_OBP0.281-0.022
predicted_R0.530-0.021
predicted_RBI0.328-0.013
predicted_SLG0.361-0.022
predicted_SO0.8870.007
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.21), rates preserved: AVG=0.226 HR/AB=0.025

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.114
predicted_3B0.000-0.053
predicted_AB4.000-0.105
predicted_AVG0.2500.018
predicted_BB0.000-0.277
predicted_H1.0000.048
predicted_HR0.000-0.104
predicted_OBP0.250-0.031
predicted_R1.0000.470
predicted_RBI0.000-0.328
predicted_SLG0.250-0.111
predicted_SO1.0000.113
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB5.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R1.0000.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 69
Reference playing time: 4.210
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-22.0004.0000.0001.0000.0000.0002.0002.0004.0000.18180.25000.27270.18180.00000.00000.09090.1818
last_100.2010-42.00011.0000.0002.0001.0002.0007.0002.0009.0000.26190.31110.42860.26190.02380.04760.04760.2143
season0.6069-259.00065.0009.0002.0007.00026.00038.00019.00061.0000.25100.31210.38220.25100.02700.10040.07340.2355
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0930
predicted_3B0.0850
predicted_AB3.9620
predicted_AVG0.2404
predicted_BB0.2860
predicted_H0.9520
predicted_HBP0.0540
predicted_HR0.0880
predicted_OBP0.3008
predicted_R0.5490
predicted_RBI0.3000
predicted_SLG0.3734
predicted_SO0.8740
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.13000.09300.1144model_form_blend
predicted_3B0.02900.08500.0526model_form_blend
predicted_AB4.21003.96204.1054model_form_blend
predicted_AVG0.23600.24040.2379model_form_blend
predicted_BB0.27500.28600.2796model_form_blend
predicted_H0.99000.95200.9740model_form_blend
predicted_HBP-0.05400.0540form_only
predicted_HR0.12000.08800.1065model_form_blend
predicted_OBP0.30400.30080.3027model_form_blend
predicted_R0.55100.54900.5502model_form_blend
predicted_RBI0.37000.30000.3405model_form_blend
predicted_SLG0.39000.37340.3830model_form_blend
predicted_SO0.88400.87400.8798model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date219
Season rows before report date219
Report year2026
Profile rows used69
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB5
H1
2B0
3B0
HR0
R1
RBI1
BB0
SO0
SF0
HBP0
season_avg0.251

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B1
Hitting_AB5
Hitting_AVG0.2
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB3
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedRF
gameID20260617_NYM@CIN
game_typefull
mlbID701807
playerID701807
playerNameCarson Benge
posOF
startedTrue
startingPositionRF
teamNYM
teamID18
game_date2026-06-17
sl_k_percent21.6
sl_bb_percent6.7
sl_woba0.308
sl_xwoba0.347
sl_xba0.284
sl_xslg0.454
sl_sweet_spot_percent40.7
sl_barrel_batted_rate9.1
sl_hard_hit_percent43.2
sl_exit_velocity_avg90.1
sl_launch_angle_avg11.4
sl_whiff_percent21.5
sl_swing_percent45.0
Juan Soto (665742) · BATTER · LF · Team NYM
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 182
All-history rows before 20260618: 182
System season_avg: 0.3010
Data season_avg (2026 season-to-date): 0.3017
Diff (system - data): -0.0007
System opponent_avg: 0.2330

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1250.0000.000Hitting_2B0.1151.000-0.115-1.000
predicted_3B0.0180.0000.000Hitting_3B0.0220.000-0.0220.000
predicted_AB4.0204.0004.000Hitting_AB3.7695.0000.231-1.000
predicted_AVG0.2740.0000.250Hitting_AVG0.3020.600-0.302-0.600
predicted_BB0.5890.0001.000Hitting_BB0.6370.000-0.6370.000
predicted_CS-0.0000.000BaseRunning_CS0.0490.000-0.0490.000
predicted_H1.1000.0001.000Hitting_H1.1373.000-1.137-3.000
predicted_HR0.1900.0000.000Hitting_HR0.2640.000-0.2640.000
predicted_OBP0.4020.0000.400Hitting_OBP0.4000.600-0.400-0.600
predicted_R0.6070.0001.000Hitting_R0.6042.000-0.604-2.000
predicted_RBI0.6700.0001.000Hitting_RBI0.6322.000-0.632-2.000
predicted_SLG0.5150.0000.250Hitting_SLG0.5540.800-0.554-0.800
predicted_SO0.5711.0001.000Hitting_SO0.6590.0000.3411.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics2
Deboosted Metrics8
Better Metrics1
Worse Metrics9
Biggest Boostpredicted_SO: 0.5710 -> 1.0000 (boost 0.4290, worse)
Biggest Deboostpredicted_H: 1.1000 -> 0.0000 (deboost -1.1000, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend54141predicted_BB: 0.5890 -> 0.6399 (boost 0.0509, better)predicted_AB: 4.0200 -> 3.8597 (deboost -0.1603, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.5337 -> 0.4863 (deboost -0.0474, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling74334predicted_SO: 0.5689 -> 1.0000 (boost 0.4311, worse)predicted_HR: 0.1868 -> 0.0000 (deboost -0.1868, worse)AB rounded to 4 (raw=4.02), rates preserved: AVG=0.280 HR/AB=0.046
5bvp_blend00000--Sample-size BvP blend (BvP AB=43.0, weight=0.236, BvP AVG=0.233)
6consistency_constraints11010predicted_R: 0.5792 -> 1.0000 (boost 0.4208, better)-Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context31212predicted_OBP: 0.3913 -> 0.4000 (boost 0.0087, better)predicted_SLG: 0.4863 -> 0.2500 (deboost -0.2363, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference40404-predicted_BB: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final32121predicted_SLG: 0.2500 -> 0.4863 (boost 0.2363, better)predicted_OBP: 0.4000 -> 0.3913 (deboost -0.0087, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "665742",
  "player_name": "Juan Soto",
  "position": "LF",
  "team": "NYM",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.125,
        "predicted_3B": 0.018,
        "predicted_AB": 4.02,
        "predicted_AVG": 0.274,
        "predicted_BB": 0.589,
        "predicted_H": 1.1,
        "predicted_HR": 0.19,
        "predicted_OBP": 0.402,
        "predicted_R": 0.607,
        "predicted_RBI": 0.67,
        "predicted_SLG": 0.515,
        "predicted_SO": 0.571
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1622,
        "predicted_3B": 0.0151,
        "predicted_AB": 3.8597,
        "predicted_AVG": 0.2996,
        "predicted_BB": 0.6399,
        "predicted_H": 1.1497,
        "predicted_HBP": 0.004,
        "predicted_HR": 0.1913,
        "predicted_OBP": 0.4176,
        "predicted_R": 0.6016,
        "predicted_RBI": 0.6696,
        "predicted_SLG": 0.5337,
        "predicted_SO": 0.5643
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.125,
          "after": 0.1622,
          "delta": 0.0372,
          "percent_delta": 0.2976,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.018,
          "after": 0.0151,
          "delta": -0.0029,
          "percent_delta": -0.1611,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.02,
          "after": 3.8597,
          "delta": -0.1603,
          "percent_delta": -0.0399,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.274,
          "after": 0.2996,
          "delta": 0.0256,
          "percent_delta": 0.0934,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.589,
          "after": 0.6399,
          "delta": 0.0509,
          "percent_delta": 0.0864,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.1,
          "after": 1.1497,
          "delta": 0.0497,
          "percent_delta": 0.0452,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.19,
          "after": 0.1913,
          "delta": 0.0013,
          "percent_delta": 0.0068,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.402,
          "after": 0.4176,
          "delta": 0.0156,
          "percent_delta": 0.0388,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.607,
          "after": 0.6016,
          "delta": -0.0054,
          "percent_delta": -0.0089,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.67,
          "after": 0.6696,
          "delta": -0.0004,
          "percent_delta": -0.0006,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.515,
          "after": 0.5337,
          "delta": 0.0187,
          "percent_delta": 0.0363,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.571,
          "after": 0.5643,
          "delta": -0.0067,
          "percent_delta": -0.0117,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 4,
        "deboosted_metrics": 1,
        "better_metrics": 4,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.589,
          "after": 0.6399,
          "delta": 0.0509,
          "percent_delta": 0.0864,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.02,
          "after": 3.8597,
          "delta": -0.1603,
          "percent_delta": -0.0399,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 56
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1622,
        "predicted_3B": 0.0151,
        "predicted_AB": 3.8597,
        "predicted_AVG": 0.2912,
        "predicted_BB": 0.6347,
        "predicted_H": 1.1241,
        "predicted_HBP": 0.004,
        "predicted_HR": 0.1868,
        "predicted_OBP": 0.3913,
        "predicted_R": 0.5792,
        "predicted_RBI": 0.6447,
        "predicted_SLG": 0.4863,
        "predicted_SO": 0.5689
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1622,
          "after": 0.1622,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0151,
          "after": 0.0151,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8597,
          "after": 3.8597,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2996,
          "after": 0.2912,
          "delta": -0.0084,
          "percent_delta": -0.028,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.6399,
          "after": 0.6347,
          "delta": -0.0052,
          "percent_delta": -0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.1497,
          "after": 1.1241,
          "delta": -0.0256,
          "percent_delta": -0.0223,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.004,
          "after": 0.004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1913,
          "after": 0.1868,
          "delta": -0.0045,
          "percent_delta": -0.0235,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4176,
          "after": 0.3913,
          "delta": -0.0263,
          "percent_delta": -0.063,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.6016,
          "after": 0.5792,
          "delta": -0.0224,
          "percent_delta": -0.0372,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6696,
          "after": 0.6447,
          "delta": -0.0249,
          "percent_delta": -0.0372,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5337,
          "after": 0.4863,
          "delta": -0.0474,
          "percent_delta": -0.0888,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5643,
          "after": 0.5689,
          "delta": 0.0046,
          "percent_delta": 0.0082,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.5337,
          "after": 0.4863,
          "delta": -0.0474,
          "percent_delta": -0.0888,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.02), rates preserved: AVG=0.280 HR/AB=0.046",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1622,
          "after": 0.0,
          "delta": -0.1622,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0151,
          "after": 0.0,
          "delta": -0.0151,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8597,
          "after": 4.0,
          "delta": 0.1403,
          "percent_delta": 0.0363,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.6347,
          "after": 1.0,
          "delta": 0.3653,
          "percent_delta": 0.5755,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.1241,
          "after": 1.0,
          "delta": -0.1241,
          "percent_delta": -0.1104,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.004,
          "after": 0.0,
          "delta": -0.004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1868,
          "after": 0.0,
          "delta": -0.1868,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6447,
          "after": 1.0,
          "delta": 0.3553,
          "percent_delta": 0.5511,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5689,
          "after": 1.0,
          "delta": 0.4311,
          "percent_delta": 0.7578,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 4,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.5689,
          "after": 1.0,
          "delta": 0.4311,
          "percent_delta": 0.7578,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_HR",
          "before": 0.1868,
          "after": 0.0,
          "delta": -0.1868,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=43.0, weight=0.236, BvP AVG=0.233)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.7644,
        "bvp": 0.2356
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5792,
          "after": 1.0,
          "delta": 0.4208,
          "percent_delta": 0.7265,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5792,
          "after": 1.0,
          "delta": 0.4208,
          "percent_delta": 0.7265,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.4,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2912,
          "after": 0.25,
          "delta": -0.0412,
          "percent_delta": -0.1415,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3913,
          "after": 0.4,
          "delta": 0.0087,
          "percent_delta": 0.0222,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4863,
          "after": 0.25,
          "delta": -0.2363,
          "percent_delta": -0.4859,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3913,
          "after": 0.4,
          "delta": 0.0087,
          "percent_delta": 0.0222,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4863,
          "after": 0.25,
          "delta": -0.2363,
          "percent_delta": -0.4859,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 0,
        "deboosted_metrics": 4,
        "better_metrics": 0,
        "worse_metrics": 4,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2912,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_LF": 0.0,
        "predicted_OBP": 0.3913,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4863,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2912,
          "delta": 0.0412,
          "percent_delta": 0.1649,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3913,
          "delta": -0.0087,
          "percent_delta": -0.0217,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4863,
          "delta": 0.2363,
          "percent_delta": 0.9451,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4863,
          "delta": 0.2363,
          "percent_delta": 0.9451,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3913,
          "delta": -0.0087,
          "percent_delta": -0.0217,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.125,
        "after": 0.0,
        "delta": -0.125,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.018,
        "after": 0.0,
        "delta": -0.018,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.02,
        "after": 4.0,
        "delta": -0.02,
        "percent_delta": -0.005,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AVG",
        "before": 0.274,
        "after": 0.2912,
        "delta": 0.0172,
        "percent_delta": 0.0628,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.589,
        "after": 0.0,
        "delta": -0.589,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.1,
        "after": 0.0,
        "delta": -1.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.19,
        "after": 0.0,
        "delta": -0.19,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.402,
        "after": 0.3913,
        "delta": -0.0107,
        "percent_delta": -0.0266,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.607,
        "after": 0.0,
        "delta": -0.607,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.67,
        "after": 0.0,
        "delta": -0.67,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.515,
        "after": 0.4863,
        "delta": -0.0287,
        "percent_delta": -0.0557,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.571,
        "after": 1.0,
        "delta": 0.429,
        "percent_delta": 0.7513,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 2,
      "deboosted_metrics": 8,
      "better_metrics": 1,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.571,
        "after": 1.0,
        "delta": 0.429,
        "percent_delta": 0.7513,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 1.1,
        "after": 0.0,
        "delta": -1.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.125-
predicted_3B0.018-
predicted_AB4.020-
predicted_AVG0.274-
predicted_BB0.589-
predicted_H1.100-
predicted_HR0.190-
predicted_OBP0.402-
predicted_R0.607-
predicted_RBI0.670-
predicted_SLG0.515-
predicted_SO0.571-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1620.037
predicted_3B0.015-0.003
predicted_AB3.860-0.160
predicted_AVG0.3000.026
predicted_BB0.6400.051
predicted_H1.1500.050
predicted_HBP0.004-
predicted_HR0.1910.001
predicted_OBP0.4180.016
predicted_R0.602-0.005
predicted_RBI0.670-0.000
predicted_SLG0.5340.019
predicted_SO0.564-0.007
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1620.000
predicted_3B0.0150.000
predicted_AB3.8600.000
predicted_AVG0.291-0.008
predicted_BB0.635-0.005
predicted_H1.124-0.026
predicted_HBP0.0040.000
predicted_HR0.187-0.005
predicted_OBP0.391-0.026
predicted_R0.579-0.022
predicted_RBI0.645-0.025
predicted_SLG0.486-0.047
predicted_SO0.5690.005
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.02), rates preserved: AVG=0.280 HR/AB=0.046

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=43.0, weight=0.236, BvP AVG=0.233)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
H1.0000.000
HR0.0000.000
RBI1.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.162
predicted_3B0.000-0.015
predicted_AB4.0000.140
predicted_AVG0.250-0.041
predicted_BB1.0000.365
predicted_H1.000-0.124
predicted_HR0.000-0.187
predicted_OBP0.4000.009
predicted_R1.0000.421
predicted_RBI1.0000.355
predicted_SLG0.250-0.236
predicted_SO1.0000.431
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.000-1.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 56
Reference playing time: 4.020
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0008.0002.0000.0000.0004.0003.0005.0003.0000.44440.56520.55560.44440.00000.22220.27780.1667
last_100.2010-34.00013.0003.0000.0002.0007.0006.00010.0003.0000.38240.52270.64710.38240.05880.20590.29410.0882
season0.6056-206.00062.0007.0001.00015.00036.00034.00033.00032.0000.30100.39580.56310.30100.07280.17480.16020.1553
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2140
predicted_3B0.0110
predicted_AB3.6360
predicted_AVG0.3354
predicted_BB0.7110
predicted_H1.2190
predicted_HBP0.0040
predicted_HR0.1930
predicted_OBP0.4393
predicted_R0.5940
predicted_RBI0.6690
predicted_SLG0.5597
predicted_SO0.5550
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.12500.21400.1622model_form_blend
predicted_3B0.01800.01100.0151model_form_blend
predicted_AB4.02003.63603.8597model_form_blend
predicted_AVG0.27400.33540.2996model_form_blend
predicted_BB0.58900.71100.6399model_form_blend
predicted_H1.10001.21901.1497model_form_blend
predicted_HBP-0.00400.0040form_only
predicted_HR0.19000.19300.1913model_form_blend
predicted_OBP0.40200.43930.4176model_form_blend
predicted_R0.60700.59400.6016model_form_blend
predicted_RBI0.67000.66900.6696model_form_blend
predicted_SLG0.51500.55970.5337model_form_blend
predicted_SO0.57100.55500.5643model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date182
Season rows before report date182
Report year2026
Profile rows used56
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.301

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB5
Hitting_AVG0.6
Hitting_BB0
Hitting_GIDP1
Hitting_H3
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R2
Hitting_RBI2
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB4
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedLF
gameID20260617_NYM@CIN
game_typefull
mlbID665742
playerID665742
playerNameJuan Soto
posLF
startedTrue
startingPositionLF
teamNYM
teamID18
game_date2026-06-17
sl_k_percent13.5
sl_bb_percent13.9
sl_woba0.402
sl_xwoba0.421
sl_xba0.303
sl_xslg0.612
sl_sweet_spot_percent31.6
sl_barrel_batted_rate15.4
sl_hard_hit_percent49.7
sl_exit_velocity_avg93.1
sl_launch_angle_avg15.7
sl_whiff_percent20.8
sl_swing_percent40.1
A.J. Ewing (805999) · BATTER · CF · Team NYM
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 78
All-history rows before 20260618: 78
System season_avg: 0.2500
Data season_avg (2026 season-to-date): 0.2602
Diff (system - data): -0.0102
System opponent_avg: 0.2500

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1470.0000.000Hitting_2B0.0641.000-0.064-1.000
predicted_3B0.0290.0000.000Hitting_3B0.0640.000-0.0640.000
predicted_AB3.5704.0004.000Hitting_AB3.4494.0000.5510.000
predicted_AVG0.2420.0000.250Hitting_AVG0.2600.250-0.260-0.250
predicted_BB0.4410.0000.000Hitting_BB0.5771.000-0.577-1.000
predicted_CS-0.0000.000BaseRunning_CS0.1410.000-0.1410.000
predicted_H0.8600.0001.000Hitting_H0.8971.000-0.897-1.000
predicted_HR0.1100.0000.000Hitting_HR0.0640.000-0.0640.000
predicted_OBP0.3220.0000.250Hitting_OBP0.3650.400-0.365-0.400
predicted_R0.4120.0000.000Hitting_R0.4740.000-0.4740.000
predicted_RBI0.4700.0001.000Hitting_RBI0.3462.000-0.346-2.000
predicted_SLG0.4030.0000.250Hitting_SLG0.3720.500-0.372-0.500
predicted_SO1.1762.0001.000Hitting_SO1.2311.0000.7691.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics2
Deboosted Metrics8
Better Metrics1
Worse Metrics9
Biggest Boostpredicted_SO: 1.1760 -> 2.0000 (boost 0.8240, worse)
Biggest Deboostpredicted_H: 0.8600 -> 0.0000 (deboost -0.8600, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend10110-predicted_SO: 1.1760 -> 1.1194 (deboost -0.0566, better)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_SLG: 0.4054 -> 0.3904 (deboost -0.0150, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73443predicted_RBI: 0.4502 -> 1.0000 (boost 0.5498, better)predicted_BB: 0.4362 -> 0.0000 (deboost -0.4362, worse)AB rounded to 4 (raw=3.57), rates preserved: AVG=0.235 HR/AB=0.029
5consistency_constraints10101-predicted_R: 0.3947 -> 0.0000 (deboost -0.3947, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2368 -> 0.2500 (boost 0.0132, better)predicted_SLG: 0.3904 -> 0.2500 (deboost -0.1404, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference31203predicted_SO: 1.0000 -> 2.0000 (boost 1.0000, worse)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.2500 -> 0.3904 (boost 0.1404, better)predicted_AVG: 0.2500 -> 0.2368 (deboost -0.0132, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "805999",
  "player_name": "A.J. Ewing",
  "position": "CF",
  "team": "NYM",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.147,
        "predicted_3B": 0.029,
        "predicted_AB": 3.57,
        "predicted_AVG": 0.242,
        "predicted_BB": 0.441,
        "predicted_H": 0.86,
        "predicted_HR": 0.11,
        "predicted_OBP": 0.322,
        "predicted_R": 0.412,
        "predicted_RBI": 0.47,
        "predicted_SLG": 0.403,
        "predicted_SO": 1.176
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.183,
        "predicted_3B": 0.0243,
        "predicted_AB": 3.5455,
        "predicted_AVG": 0.2429,
        "predicted_BB": 0.4398,
        "predicted_H": 0.8588,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.1068,
        "predicted_OBP": 0.3239,
        "predicted_R": 0.41,
        "predicted_RBI": 0.4676,
        "predicted_SLG": 0.4054,
        "predicted_SO": 1.1194
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.147,
          "after": 0.183,
          "delta": 0.036,
          "percent_delta": 0.2449,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.029,
          "after": 0.0243,
          "delta": -0.0047,
          "percent_delta": -0.1621,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.57,
          "after": 3.5455,
          "delta": -0.0245,
          "percent_delta": -0.0069,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.242,
          "after": 0.2429,
          "delta": 0.0009,
          "percent_delta": 0.0037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.441,
          "after": 0.4398,
          "delta": -0.0012,
          "percent_delta": -0.0027,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.86,
          "after": 0.8588,
          "delta": -0.0012,
          "percent_delta": -0.0014,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.11,
          "after": 0.1068,
          "delta": -0.0032,
          "percent_delta": -0.0291,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.322,
          "after": 0.3239,
          "delta": 0.0019,
          "percent_delta": 0.0059,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.412,
          "after": 0.41,
          "delta": -0.002,
          "percent_delta": -0.0049,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.47,
          "after": 0.4676,
          "delta": -0.0024,
          "percent_delta": -0.0051,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.403,
          "after": 0.4054,
          "delta": 0.0024,
          "percent_delta": 0.006,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.176,
          "after": 1.1194,
          "delta": -0.0566,
          "percent_delta": -0.0481,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.176,
          "after": 1.1194,
          "delta": -0.0566,
          "percent_delta": -0.0481,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 34
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.183,
        "predicted_3B": 0.0243,
        "predicted_AB": 3.5455,
        "predicted_AVG": 0.2368,
        "predicted_BB": 0.4362,
        "predicted_H": 0.8396,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.1043,
        "predicted_OBP": 0.3204,
        "predicted_R": 0.3947,
        "predicted_RBI": 0.4502,
        "predicted_SLG": 0.3904,
        "predicted_SO": 1.1285
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.183,
          "after": 0.183,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0243,
          "after": 0.0243,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.5455,
          "after": 3.5455,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2429,
          "after": 0.2368,
          "delta": -0.0061,
          "percent_delta": -0.0251,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4398,
          "after": 0.4362,
          "delta": -0.0036,
          "percent_delta": -0.0082,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8588,
          "after": 0.8396,
          "delta": -0.0192,
          "percent_delta": -0.0224,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.006,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1068,
          "after": 0.1043,
          "delta": -0.0025,
          "percent_delta": -0.0234,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3239,
          "after": 0.3204,
          "delta": -0.0035,
          "percent_delta": -0.0108,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.41,
          "after": 0.3947,
          "delta": -0.0153,
          "percent_delta": -0.0373,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4676,
          "after": 0.4502,
          "delta": -0.0174,
          "percent_delta": -0.0372,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4054,
          "after": 0.3904,
          "delta": -0.015,
          "percent_delta": -0.037,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1194,
          "after": 1.1285,
          "delta": 0.0091,
          "percent_delta": 0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4054,
          "after": 0.3904,
          "delta": -0.015,
          "percent_delta": -0.037,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.57), rates preserved: AVG=0.235 HR/AB=0.029",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.183,
          "after": 0.0,
          "delta": -0.183,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0243,
          "after": 0.0,
          "delta": -0.0243,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.5455,
          "after": 4.0,
          "delta": 0.4545,
          "percent_delta": 0.1282,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4362,
          "after": 0.0,
          "delta": -0.4362,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8396,
          "after": 1.0,
          "delta": 0.1604,
          "percent_delta": 0.191,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.0,
          "delta": -0.006,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1043,
          "after": 0.0,
          "delta": -0.1043,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4502,
          "after": 1.0,
          "delta": 0.5498,
          "percent_delta": 1.2212,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1285,
          "after": 1.0,
          "delta": -0.1285,
          "percent_delta": -0.1139,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 4,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.4502,
          "after": 1.0,
          "delta": 0.5498,
          "percent_delta": 1.2212,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.4362,
          "after": 0.0,
          "delta": -0.4362,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3947,
          "after": 0.0,
          "delta": -0.3947,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3947,
          "after": 0.0,
          "delta": -0.3947,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2368,
          "after": 0.25,
          "delta": 0.0132,
          "percent_delta": 0.0557,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3204,
          "after": 0.25,
          "delta": -0.0704,
          "percent_delta": -0.2197,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3904,
          "after": 0.25,
          "delta": -0.1404,
          "percent_delta": -0.3596,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2368,
          "after": 0.25,
          "delta": 0.0132,
          "percent_delta": 0.0557,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3904,
          "after": 0.25,
          "delta": -0.1404,
          "percent_delta": -0.3596,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2368,
        "predicted_BB": 0.0,
        "predicted_CF": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3204,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3904,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2368,
          "delta": -0.0132,
          "percent_delta": -0.0527,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3204,
          "delta": 0.0704,
          "percent_delta": 0.2817,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3904,
          "delta": 0.1404,
          "percent_delta": 0.5616,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3904,
          "delta": 0.1404,
          "percent_delta": 0.5616,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2368,
          "delta": -0.0132,
          "percent_delta": -0.0527,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.147,
        "after": 0.0,
        "delta": -0.147,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.029,
        "after": 0.0,
        "delta": -0.029,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.57,
        "after": 4.0,
        "delta": 0.43,
        "percent_delta": 0.1204,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.242,
        "after": 0.2368,
        "delta": -0.0052,
        "percent_delta": -0.0215,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.441,
        "after": 0.0,
        "delta": -0.441,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.86,
        "after": 0.0,
        "delta": -0.86,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.11,
        "after": 0.0,
        "delta": -0.11,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.322,
        "after": 0.3204,
        "delta": -0.0016,
        "percent_delta": -0.005,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.412,
        "after": 0.0,
        "delta": -0.412,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.47,
        "after": 0.0,
        "delta": -0.47,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.403,
        "after": 0.3904,
        "delta": -0.0126,
        "percent_delta": -0.0313,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.176,
        "after": 2.0,
        "delta": 0.824,
        "percent_delta": 0.7007,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 2,
      "deboosted_metrics": 8,
      "better_metrics": 1,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 1.176,
        "after": 2.0,
        "delta": 0.824,
        "percent_delta": 0.7007,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.86,
        "after": 0.0,
        "delta": -0.86,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.147-
predicted_3B0.029-
predicted_AB3.570-
predicted_AVG0.242-
predicted_BB0.441-
predicted_H0.860-
predicted_HR0.110-
predicted_OBP0.322-
predicted_R0.412-
predicted_RBI0.470-
predicted_SLG0.403-
predicted_SO1.176-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1830.036
predicted_3B0.024-0.005
predicted_AB3.546-0.024
predicted_AVG0.2430.001
predicted_BB0.440-0.001
predicted_H0.859-0.001
predicted_HBP0.006-
predicted_HR0.107-0.003
predicted_OBP0.3240.002
predicted_R0.410-0.002
predicted_RBI0.468-0.002
predicted_SLG0.4050.002
predicted_SO1.119-0.057
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1830.000
predicted_3B0.0240.000
predicted_AB3.5460.000
predicted_AVG0.237-0.006
predicted_BB0.436-0.004
predicted_H0.840-0.019
predicted_HBP0.0060.000
predicted_HR0.104-0.003
predicted_OBP0.320-0.004
predicted_R0.395-0.015
predicted_RBI0.450-0.017
predicted_SLG0.390-0.015
predicted_SO1.1290.009
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.57), rates preserved: AVG=0.235 HR/AB=0.029

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.183
predicted_3B0.000-0.024
predicted_AB4.0000.454
predicted_AVG0.2500.013
predicted_BB0.000-0.436
predicted_H1.0000.160
predicted_HR0.000-0.104
predicted_OBP0.250-0.070
predicted_R0.000-0.395
predicted_RBI1.0000.550
predicted_SLG0.250-0.140
predicted_SO1.000-0.129
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 34
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0004.0002.0000.0001.0004.0002.0003.0004.0000.23530.35000.52940.23530.05880.23530.17650.2353
last_100.2010-35.0008.0004.0000.0001.0005.0003.0004.00010.0000.22860.30000.42860.22860.02860.14290.11430.2857
season0.6034-116.00029.0005.0001.0002.00011.00014.00015.00040.0000.25000.33330.36210.25000.01720.09480.12930.3448
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2380
predicted_3B0.0170
predicted_AB3.5080
predicted_AVG0.2442
predicted_BB0.4380
predicted_H0.8570
predicted_HBP0.0060
predicted_HR0.1020
predicted_OBP0.3269
predicted_R0.4070
predicted_RBI0.4640
predicted_SLG0.4090
predicted_SO1.0330
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.14700.23800.1830model_form_blend
predicted_3B0.02900.01700.0243model_form_blend
predicted_AB3.57003.50803.5455model_form_blend
predicted_AVG0.24200.24420.2429model_form_blend
predicted_BB0.44100.43800.4398model_form_blend
predicted_H0.86000.85700.8588model_form_blend
predicted_HBP-0.00600.0060form_only
predicted_HR0.11000.10200.1068model_form_blend
predicted_OBP0.32200.32690.3239model_form_blend
predicted_R0.41200.40700.4100model_form_blend
predicted_RBI0.47000.46400.4676model_form_blend
predicted_SLG0.40300.40900.4054model_form_blend
predicted_SO1.17601.03301.1194model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date78
Season rows before report date78
Report year2026
Profile rows used34
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO2
SF0
HBP0
season_avg0.25

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB1
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI2
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB2
Hitting_battingOrder7
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedCF
gameID20260617_NYM@CIN
game_typefull
mlbID805999
playerID805999
playerNameA.J. Ewing
posLF
startedTrue
startingPositionCF
teamNYM
teamID18
game_date2026-06-17
sl_k_percent29.9
sl_bb_percent11.2
sl_woba0.313
sl_xwoba0.329
sl_xba0.265
sl_xslg0.389
sl_sweet_spot_percent40.5
sl_barrel_batted_rate5.1
sl_hard_hit_percent39.2
sl_exit_velocity_avg88.6
sl_launch_angle_avg12.6
sl_whiff_percent23.8
sl_swing_percent43.4
Brett Baty (683146) · BATTER · 3B · Team NYM
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 202
All-history rows before 20260618: 202
System season_avg: 0.2300
Data season_avg (2026 season-to-date): 0.2457
Diff (system - data): -0.0157
System opponent_avg: 0.1000
System season_avg diverges from 2026 season-to-date by -0.0157. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1410.0000.000Hitting_2B0.1730.000-0.1730.000
predicted_3B0.0160.0000.000Hitting_3B0.0250.000-0.0250.000
predicted_AB3.3284.0003.000Hitting_AB3.4650.0000.5354.000
predicted_AVG0.2370.5000.333Hitting_AVG0.246-0.254-
predicted_BB0.2970.0000.000Hitting_BB0.3420.000-0.3420.000
predicted_CS-0.0000.000BaseRunning_CS0.0200.000-0.0200.000
predicted_H0.7202.0001.000Hitting_H0.8510.0001.1492.000
predicted_HR0.0700.0000.000Hitting_HR0.0690.000-0.0690.000
predicted_OBP0.3160.5000.333Hitting_OBP0.317-0.183-
predicted_R0.3591.0000.000Hitting_R0.4800.0000.5201.000
predicted_RBI0.3700.0000.000Hitting_RBI0.4600.000-0.4600.000
predicted_SLG0.3270.5000.333Hitting_SLG0.370-0.130-
predicted_SO1.0310.0001.000Hitting_SO1.0540.000-1.0540.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics4
Worse Metrics7
Biggest Boostpredicted_H: 0.7200 -> 2.0000 (boost 1.2800, better)
Biggest Deboostpredicted_SO: 1.0310 -> 0.0000 (deboost -1.0310, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend20202-predicted_SLG: 0.3270 -> 0.3101 (deboost -0.0169, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3167 -> 0.2811 (deboost -0.0356, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71616predicted_H: 0.6978 -> 1.0000 (boost 0.3022, better)predicted_RBI: 0.3514 -> 0.0000 (deboost -0.3514, worse)AB rounded to 3 (raw=3.33), rates preserved: AVG=0.210 HR/AB=0.017
5bvp_blend00000--Sample-size BvP blend (BvP AB=10.0, weight=0.100, BvP AVG=0.100)
6consistency_constraints10101-predicted_R: 0.3119 -> 0.0000 (deboost -0.3119, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context33030predicted_AVG: 0.2102 -> 0.3330 (boost 0.1228, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference43140predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
9current_json_final30303-predicted_AVG: 0.3330 -> 0.2102 (deboost -0.1228, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "683146",
  "player_name": "Brett Baty",
  "position": "3B",
  "team": "NYM",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.141,
        "predicted_3B": 0.016,
        "predicted_AB": 3.328,
        "predicted_AVG": 0.237,
        "predicted_BB": 0.297,
        "predicted_H": 0.72,
        "predicted_HR": 0.07,
        "predicted_OBP": 0.316,
        "predicted_R": 0.359,
        "predicted_RBI": 0.37,
        "predicted_SLG": 0.327,
        "predicted_SO": 1.031
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1285,
        "predicted_3B": 0.0135,
        "predicted_AB": 3.3192,
        "predicted_AVG": 0.227,
        "predicted_BB": 0.33,
        "predicted_H": 0.7137,
        "predicted_HBP": 0.143,
        "predicted_HR": 0.0567,
        "predicted_OBP": 0.3167,
        "predicted_R": 0.324,
        "predicted_RBI": 0.365,
        "predicted_SLG": 0.3101,
        "predicted_SO": 1.0297
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.141,
          "after": 0.1285,
          "delta": -0.0125,
          "percent_delta": -0.0887,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.016,
          "after": 0.0135,
          "delta": -0.0025,
          "percent_delta": -0.1563,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.328,
          "after": 3.3192,
          "delta": -0.0088,
          "percent_delta": -0.0026,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.237,
          "after": 0.227,
          "delta": -0.01,
          "percent_delta": -0.0422,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.297,
          "after": 0.33,
          "delta": 0.033,
          "percent_delta": 0.1111,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.72,
          "after": 0.7137,
          "delta": -0.0063,
          "percent_delta": -0.0087,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.07,
          "after": 0.0567,
          "delta": -0.0133,
          "percent_delta": -0.19,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.316,
          "after": 0.3167,
          "delta": 0.0007,
          "percent_delta": 0.0022,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.359,
          "after": 0.324,
          "delta": -0.035,
          "percent_delta": -0.0975,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.37,
          "after": 0.365,
          "delta": -0.005,
          "percent_delta": -0.0135,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.327,
          "after": 0.3101,
          "delta": -0.0169,
          "percent_delta": -0.0517,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.031,
          "after": 1.0297,
          "delta": -0.0013,
          "percent_delta": -0.0013,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.327,
          "after": 0.3101,
          "delta": -0.0169,
          "percent_delta": -0.0517,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 64
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1285,
        "predicted_3B": 0.0135,
        "predicted_AB": 3.3192,
        "predicted_AVG": 0.2102,
        "predicted_BB": 0.3273,
        "predicted_H": 0.6978,
        "predicted_HBP": 0.143,
        "predicted_HR": 0.0554,
        "predicted_OBP": 0.2811,
        "predicted_R": 0.3119,
        "predicted_RBI": 0.3514,
        "predicted_SLG": 0.3071,
        "predicted_SO": 1.038
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1285,
          "after": 0.1285,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0135,
          "after": 0.0135,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.3192,
          "after": 3.3192,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.227,
          "after": 0.2102,
          "delta": -0.0168,
          "percent_delta": -0.074,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.33,
          "after": 0.3273,
          "delta": -0.0027,
          "percent_delta": -0.0082,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7137,
          "after": 0.6978,
          "delta": -0.0159,
          "percent_delta": -0.0223,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.143,
          "after": 0.143,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0567,
          "after": 0.0554,
          "delta": -0.0013,
          "percent_delta": -0.0229,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3167,
          "after": 0.2811,
          "delta": -0.0356,
          "percent_delta": -0.1124,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.324,
          "after": 0.3119,
          "delta": -0.0121,
          "percent_delta": -0.0373,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.365,
          "after": 0.3514,
          "delta": -0.0136,
          "percent_delta": -0.0373,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3101,
          "after": 0.3071,
          "delta": -0.003,
          "percent_delta": -0.0097,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0297,
          "after": 1.038,
          "delta": 0.0083,
          "percent_delta": 0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3167,
          "after": 0.2811,
          "delta": -0.0356,
          "percent_delta": -0.1124,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.33), rates preserved: AVG=0.210 HR/AB=0.017",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1285,
          "after": 0.0,
          "delta": -0.1285,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0135,
          "after": 0.0,
          "delta": -0.0135,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.3192,
          "after": 3.0,
          "delta": -0.3192,
          "percent_delta": -0.0962,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3273,
          "after": 0.0,
          "delta": -0.3273,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6978,
          "after": 1.0,
          "delta": 0.3022,
          "percent_delta": 0.4331,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.143,
          "after": 0.0,
          "delta": -0.143,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0554,
          "after": 0.0,
          "delta": -0.0554,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3514,
          "after": 0.0,
          "delta": -0.3514,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.038,
          "after": 1.0,
          "delta": -0.038,
          "percent_delta": -0.0366,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.6978,
          "after": 1.0,
          "delta": 0.3022,
          "percent_delta": 0.4331,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3514,
          "after": 0.0,
          "delta": -0.3514,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=10.0, weight=0.100, BvP AVG=0.100)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9,
        "bvp": 0.1
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3119,
          "after": 0.0,
          "delta": -0.3119,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3119,
          "after": 0.0,
          "delta": -0.3119,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2102,
          "after": 0.333,
          "delta": 0.1228,
          "percent_delta": 0.5842,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2811,
          "after": 0.333,
          "delta": 0.0519,
          "percent_delta": 0.1846,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3071,
          "after": 0.333,
          "delta": 0.0259,
          "percent_delta": 0.0843,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2102,
          "after": 0.333,
          "delta": 0.1228,
          "percent_delta": 0.5842,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 4,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2102,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2811,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3071,
        "predicted_SO": 0.0,
        "predicted_TB": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2102,
          "delta": -0.1228,
          "percent_delta": -0.3687,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2811,
          "delta": -0.0519,
          "percent_delta": -0.1558,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3071,
          "delta": -0.0259,
          "percent_delta": -0.0777,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2102,
          "delta": -0.1228,
          "percent_delta": -0.3687,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.141,
        "after": 0.0,
        "delta": -0.141,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.016,
        "after": 0.0,
        "delta": -0.016,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.328,
        "after": 4.0,
        "delta": 0.672,
        "percent_delta": 0.2019,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.237,
        "after": 0.2102,
        "delta": -0.0268,
        "percent_delta": -0.1131,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.297,
        "after": 0.0,
        "delta": -0.297,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.72,
        "after": 2.0,
        "delta": 1.28,
        "percent_delta": 1.7778,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.07,
        "after": 0.0,
        "delta": -0.07,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.316,
        "after": 0.2811,
        "delta": -0.0349,
        "percent_delta": -0.1104,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.359,
        "after": 1.0,
        "delta": 0.641,
        "percent_delta": 1.7855,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.37,
        "after": 0.0,
        "delta": -0.37,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.327,
        "after": 0.3071,
        "delta": -0.0199,
        "percent_delta": -0.0609,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.031,
        "after": 0.0,
        "delta": -1.031,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 4,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 0.72,
        "after": 2.0,
        "delta": 1.28,
        "percent_delta": 1.7778,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 1.031,
        "after": 0.0,
        "delta": -1.031,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.141-
predicted_3B0.016-
predicted_AB3.328-
predicted_AVG0.237-
predicted_BB0.297-
predicted_H0.720-
predicted_HR0.070-
predicted_OBP0.316-
predicted_R0.359-
predicted_RBI0.370-
predicted_SLG0.327-
predicted_SO1.031-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.129-0.012
predicted_3B0.013-0.003
predicted_AB3.319-0.009
predicted_AVG0.227-0.010
predicted_BB0.3300.033
predicted_H0.714-0.006
predicted_HBP0.143-
predicted_HR0.057-0.013
predicted_OBP0.3170.001
predicted_R0.324-0.035
predicted_RBI0.365-0.005
predicted_SLG0.310-0.017
predicted_SO1.030-0.001
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1290.000
predicted_3B0.0130.000
predicted_AB3.3190.000
predicted_AVG0.210-0.017
predicted_BB0.327-0.003
predicted_H0.698-0.016
predicted_HBP0.1430.000
predicted_HR0.055-0.001
predicted_OBP0.281-0.036
predicted_R0.312-0.012
predicted_RBI0.351-0.014
predicted_SLG0.307-0.003
predicted_SO1.0380.008
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.33), rates preserved: AVG=0.210 HR/AB=0.017

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=10.0, weight=0.100, BvP AVG=0.100)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.129
predicted_3B0.000-0.013
predicted_AB3.000-0.319
predicted_AVG0.3330.123
predicted_BB0.000-0.327
predicted_H1.0000.302
predicted_HR0.000-0.055
predicted_OBP0.3330.052
predicted_R0.000-0.312
predicted_RBI0.000-0.351
predicted_SLG0.3330.026
predicted_SO1.000-0.038
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 64
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-15.0002.0000.0000.0000.0001.0000.0003.0006.0000.13330.35000.13330.13330.00000.06670.20000.4000
last_100.2010-32.0007.0001.0000.0000.0003.0002.0004.0009.0000.21880.34210.25000.21880.00000.09380.12500.2812
season0.6064-213.00049.0009.0001.0003.00026.00023.00019.00066.0000.23000.29960.32390.23010.01410.12210.08920.3099
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1110
predicted_3B0.0100
predicted_AB3.3070
predicted_AVG0.2131
predicted_BB0.3760
predicted_H0.7050
predicted_HBP0.1430
predicted_HR0.0380
predicted_OBP0.3176
predicted_R0.2750
predicted_RBI0.3580
predicted_SLG0.2866
predicted_SO1.0280
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.14100.11100.1285model_form_blend
predicted_3B0.01600.01000.0135model_form_blend
predicted_AB3.32803.30703.3192model_form_blend
predicted_AVG0.23700.21310.2270model_form_blend
predicted_BB0.29700.37600.3300model_form_blend
predicted_H0.72000.70500.7137model_form_blend
predicted_HBP-0.14300.1430form_only
predicted_HR0.07000.03800.0567model_form_blend
predicted_OBP0.31600.31760.3167model_form_blend
predicted_R0.35900.27500.3240model_form_blend
predicted_RBI0.37000.35800.3650model_form_blend
predicted_SLG0.32700.28660.3101model_form_blend
predicted_SO1.03101.02801.0297model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date202
Season rows before report date202
Report year2026
Profile rows used64
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H2
2B0
3B0
HR0
R1
RBI0
BB0
SO0
SF0
HBP0
season_avg0.23

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder4
Hitting_substitutionOrder1
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_NYM@CIN
game_typeshort
mlbID683146
playerID683146
playerNameBrett Baty
pos3B
startedFalse
startingPosition2B
teamNYM
teamID18
game_date2026-06-17
sl_k_percent28.2
sl_bb_percent9.0
sl_woba0.283
sl_xwoba0.296
sl_xba0.228
sl_xslg0.36
sl_sweet_spot_percent34.0
sl_barrel_batted_rate7.3
sl_hard_hit_percent38.7
sl_exit_velocity_avg89.2
sl_launch_angle_avg9.4
sl_whiff_percent28.2
sl_swing_percent45.8
Marcus Semien (543760) · BATTER · 2B · Team NYM
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 238
All-history rows before 20260618: 238
System season_avg: 0.2240
Data season_avg (2026 season-to-date): 0.2329
Diff (system - data): -0.0089
System opponent_avg: 0.0900

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1100.0000.000Hitting_2B0.1340.000-0.1340.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.6804.0004.000Hitting_AB3.6814.0000.3190.000
predicted_AVG0.2340.0000.250Hitting_AVG0.2330.500-0.233-0.500
predicted_BB0.3010.0000.000Hitting_BB0.2691.000-0.269-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0380.000-0.0380.000
predicted_H0.8600.0001.000Hitting_H0.8572.000-0.857-2.000
predicted_HR0.1400.0000.000Hitting_HR0.1010.000-0.1010.000
predicted_OBP0.3070.0000.250Hitting_OBP0.2840.600-0.284-0.600
predicted_R0.3970.0000.000Hitting_R0.3951.000-0.395-1.000
predicted_RBI0.4000.0000.000Hitting_RBI0.4121.000-0.412-1.000
predicted_SB-0.0000.000BaseRunning_SB0.0880.000-0.0880.000
predicted_SLG0.3860.0000.250Hitting_SLG0.3520.500-0.352-0.500
predicted_SO0.8221.0001.000Hitting_SO0.8070.0000.1931.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics2
Deboosted Metrics9
Better Metrics1
Worse Metrics10
Biggest Boostpredicted_AB: 3.6800 -> 4.0000 (boost 0.3200, better)
Biggest Deboostpredicted_H: 0.8600 -> 0.0000 (deboost -0.8600, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend21111predicted_BB: 0.3010 -> 0.3547 (boost 0.0537, better)predicted_SLG: 0.3860 -> 0.3800 (deboost -0.0060, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3064 -> 0.2928 (deboost -0.0136, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73425predicted_AB: 3.6652 -> 4.0000 (boost 0.3348, better)predicted_RBI: 0.3749 -> 0.0000 (deboost -0.3749, worse)AB rounded to 4 (raw=3.68), rates preserved: AVG=0.224 HR/AB=0.039
5bvp_blend00000--Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.000)
6consistency_constraints10101-predicted_R: 0.4014 -> 0.0000 (deboost -0.4014, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context31212predicted_AVG: 0.2249 -> 0.2500 (boost 0.0251, better)predicted_SLG: 0.3673 -> 0.2500 (deboost -0.1173, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference10101-predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final32121predicted_SLG: 0.2500 -> 0.3673 (boost 0.1173, better)predicted_AVG: 0.2500 -> 0.2249 (deboost -0.0251, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "543760",
  "player_name": "Marcus Semien",
  "position": "2B",
  "team": "NYM",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.11,
        "predicted_3B": 0.0,
        "predicted_AB": 3.68,
        "predicted_AVG": 0.234,
        "predicted_BB": 0.301,
        "predicted_H": 0.86,
        "predicted_HR": 0.14,
        "predicted_OBP": 0.307,
        "predicted_R": 0.397,
        "predicted_RBI": 0.4,
        "predicted_SLG": 0.386,
        "predicted_SO": 0.822
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0961,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.6652,
        "predicted_AVG": 0.2302,
        "predicted_BB": 0.3547,
        "predicted_H": 0.8431,
        "predicted_HBP": 0.011,
        "predicted_HR": 0.1451,
        "predicted_OBP": 0.3064,
        "predicted_R": 0.4169,
        "predicted_RBI": 0.3894,
        "predicted_SLG": 0.38,
        "predicted_SO": 0.8655
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.11,
          "after": 0.0961,
          "delta": -0.0139,
          "percent_delta": -0.1264,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.68,
          "after": 3.6652,
          "delta": -0.0148,
          "percent_delta": -0.004,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.234,
          "after": 0.2302,
          "delta": -0.0038,
          "percent_delta": -0.0162,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.301,
          "after": 0.3547,
          "delta": 0.0537,
          "percent_delta": 0.1784,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.86,
          "after": 0.8431,
          "delta": -0.0169,
          "percent_delta": -0.0197,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.14,
          "after": 0.1451,
          "delta": 0.0051,
          "percent_delta": 0.0364,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.307,
          "after": 0.3064,
          "delta": -0.0006,
          "percent_delta": -0.002,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.397,
          "after": 0.4169,
          "delta": 0.0199,
          "percent_delta": 0.0501,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4,
          "after": 0.3894,
          "delta": -0.0106,
          "percent_delta": -0.0265,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.386,
          "after": 0.38,
          "delta": -0.006,
          "percent_delta": -0.0155,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.822,
          "after": 0.8655,
          "delta": 0.0435,
          "percent_delta": 0.0529,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.301,
          "after": 0.3547,
          "delta": 0.0537,
          "percent_delta": 0.1784,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.386,
          "after": 0.38,
          "delta": -0.006,
          "percent_delta": -0.0155,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 73
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0961,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.6652,
        "predicted_AVG": 0.2249,
        "predicted_BB": 0.3518,
        "predicted_H": 0.8243,
        "predicted_HBP": 0.011,
        "predicted_HR": 0.1417,
        "predicted_OBP": 0.2928,
        "predicted_R": 0.4014,
        "predicted_RBI": 0.3749,
        "predicted_SLG": 0.3673,
        "predicted_SO": 0.8725
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0961,
          "after": 0.0961,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6652,
          "after": 3.6652,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2302,
          "after": 0.2249,
          "delta": -0.0053,
          "percent_delta": -0.023,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3547,
          "after": 0.3518,
          "delta": -0.0029,
          "percent_delta": -0.0082,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8431,
          "after": 0.8243,
          "delta": -0.0188,
          "percent_delta": -0.0223,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.011,
          "after": 0.011,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1451,
          "after": 0.1417,
          "delta": -0.0034,
          "percent_delta": -0.0234,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3064,
          "after": 0.2928,
          "delta": -0.0136,
          "percent_delta": -0.0444,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4169,
          "after": 0.4014,
          "delta": -0.0155,
          "percent_delta": -0.0372,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3894,
          "after": 0.3749,
          "delta": -0.0145,
          "percent_delta": -0.0372,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.38,
          "after": 0.3673,
          "delta": -0.0127,
          "percent_delta": -0.0334,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8655,
          "after": 0.8725,
          "delta": 0.007,
          "percent_delta": 0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3064,
          "after": 0.2928,
          "delta": -0.0136,
          "percent_delta": -0.0444,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.68), rates preserved: AVG=0.224 HR/AB=0.039",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0961,
          "after": 0.0,
          "delta": -0.0961,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6652,
          "after": 4.0,
          "delta": 0.3348,
          "percent_delta": 0.0913,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3518,
          "after": 0.0,
          "delta": -0.3518,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8243,
          "after": 1.0,
          "delta": 0.1757,
          "percent_delta": 0.2132,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.011,
          "after": 0.0,
          "delta": -0.011,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1417,
          "after": 0.0,
          "delta": -0.1417,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3749,
          "after": 0.0,
          "delta": -0.3749,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8725,
          "after": 1.0,
          "delta": 0.1275,
          "percent_delta": 0.1461,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.6652,
          "after": 4.0,
          "delta": 0.3348,
          "percent_delta": 0.0913,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3749,
          "after": 0.0,
          "delta": -0.3749,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.000)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9333,
        "bvp": 0.0667
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4014,
          "after": 0.0,
          "delta": -0.4014,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4014,
          "after": 0.0,
          "delta": -0.4014,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2249,
          "after": 0.25,
          "delta": 0.0251,
          "percent_delta": 0.1116,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2928,
          "after": 0.25,
          "delta": -0.0428,
          "percent_delta": -0.1462,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3673,
          "after": 0.25,
          "delta": -0.1173,
          "percent_delta": -0.3194,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2249,
          "after": 0.25,
          "delta": 0.0251,
          "percent_delta": 0.1116,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3673,
          "after": 0.25,
          "delta": -0.1173,
          "percent_delta": -0.3194,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2249,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2928,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3673,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2249,
          "delta": -0.0251,
          "percent_delta": -0.1004,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2928,
          "delta": 0.0428,
          "percent_delta": 0.1711,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3673,
          "delta": 0.1173,
          "percent_delta": 0.4692,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3673,
          "delta": 0.1173,
          "percent_delta": 0.4692,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2249,
          "delta": -0.0251,
          "percent_delta": -0.1004,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.11,
        "after": 0.0,
        "delta": -0.11,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.68,
        "after": 4.0,
        "delta": 0.32,
        "percent_delta": 0.087,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.234,
        "after": 0.2249,
        "delta": -0.0091,
        "percent_delta": -0.0389,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.301,
        "after": 0.0,
        "delta": -0.301,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.86,
        "after": 0.0,
        "delta": -0.86,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.14,
        "after": 0.0,
        "delta": -0.14,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.307,
        "after": 0.2928,
        "delta": -0.0142,
        "percent_delta": -0.0463,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.397,
        "after": 0.0,
        "delta": -0.397,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.4,
        "after": 0.0,
        "delta": -0.4,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.386,
        "after": 0.3673,
        "delta": -0.0187,
        "percent_delta": -0.0484,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.822,
        "after": 1.0,
        "delta": 0.178,
        "percent_delta": 0.2165,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 2,
      "deboosted_metrics": 9,
      "better_metrics": 1,
      "worse_metrics": 10,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.68,
        "after": 4.0,
        "delta": 0.32,
        "percent_delta": 0.087,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.86,
        "after": 0.0,
        "delta": -0.86,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.110-
predicted_3B0.000-
predicted_AB3.680-
predicted_AVG0.234-
predicted_BB0.301-
predicted_H0.860-
predicted_HR0.140-
predicted_OBP0.307-
predicted_R0.397-
predicted_RBI0.400-
predicted_SLG0.386-
predicted_SO0.822-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.096-0.014
predicted_3B0.0000.000
predicted_AB3.665-0.015
predicted_AVG0.230-0.004
predicted_BB0.3550.054
predicted_H0.843-0.017
predicted_HBP0.011-
predicted_HR0.1450.005
predicted_OBP0.306-0.001
predicted_R0.4170.020
predicted_RBI0.389-0.011
predicted_SLG0.380-0.006
predicted_SO0.8660.044
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0960.000
predicted_3B0.0000.000
predicted_AB3.6650.000
predicted_AVG0.225-0.005
predicted_BB0.352-0.003
predicted_H0.824-0.019
predicted_HBP0.0110.000
predicted_HR0.142-0.003
predicted_OBP0.293-0.014
predicted_R0.401-0.016
predicted_RBI0.375-0.015
predicted_SLG0.367-0.013
predicted_SO0.8730.007
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.68), rates preserved: AVG=0.224 HR/AB=0.039

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.000)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.096
predicted_3B0.000-0.000
predicted_AB4.0000.335
predicted_AVG0.2500.025
predicted_BB0.000-0.352
predicted_H1.0000.176
predicted_HR0.000-0.142
predicted_OBP0.250-0.043
predicted_R0.000-0.401
predicted_RBI0.000-0.375
predicted_SLG0.250-0.117
predicted_SO1.0000.127
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 73
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0004.0000.0000.0001.0002.0003.0004.0005.0000.22220.36360.38890.22220.05560.11110.22220.2778
last_100.2010-37.0008.0000.0000.0002.0003.0004.0005.00012.0000.21620.30950.37840.21620.05410.08110.13510.3243
season0.6073-263.00059.0008.0000.0009.00027.00029.00022.00060.0000.22430.28370.35740.22430.03420.10270.08370.2281
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0770
predicted_3B0.0010
predicted_AB3.6450
predicted_AVG0.2249
predicted_BB0.4280
predicted_H0.8200
predicted_HBP0.0110
predicted_HR0.1520
predicted_OBP0.3056
predicted_R0.4440
predicted_RBI0.3750
predicted_SLG0.3718
predicted_SO0.9250
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.11000.07700.0961model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB3.68003.64503.6652model_form_blend
predicted_AVG0.23400.22490.2302model_form_blend
predicted_BB0.30100.42800.3547model_form_blend
predicted_H0.86000.82000.8431model_form_blend
predicted_HBP-0.01100.0110form_only
predicted_HR0.14000.15200.1451model_form_blend
predicted_OBP0.30700.30560.3064model_form_blend
predicted_R0.39700.44400.4169model_form_blend
predicted_RBI0.40000.37500.3894model_form_blend
predicted_SLG0.38600.37180.3800model_form_blend
predicted_SO0.82200.92500.8655model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date238
Season rows before report date238
Report year2026
Profile rows used73
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.224

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.5
Hitting_BB1
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB2
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_NYM@CIN
game_typefull
mlbID543760
playerID543760
playerNameMarcus Semien
pos2B
startedTrue
startingPosition2B
teamNYM
teamID18
game_date2026-06-17
sl_k_percent21.1
sl_bb_percent7.5
sl_woba0.281
sl_xwoba0.325
sl_xba0.26
sl_xslg0.428
sl_sweet_spot_percent38.3
sl_barrel_batted_rate8.7
sl_hard_hit_percent34.9
sl_exit_velocity_avg86.2
sl_launch_angle_avg18.5
sl_whiff_percent23.0
sl_swing_percent50.4
MJ Melendez (669004) · BATTER · DH · Team NYM
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 102
All-history rows before 20260618: 102
System season_avg: 0.2000
Data season_avg (2026 season-to-date): 0.2308
Diff (system - data): -0.0308
System opponent_avg: 0.2000
System season_avg diverges from 2026 season-to-date by -0.0308. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1190.0000.000Hitting_2B0.1470.000-0.1470.000
predicted_3B0.0240.0000.000Hitting_3B0.0290.000-0.0290.000
predicted_AB2.5003.0003.000Hitting_AB2.5490.0000.4513.000
predicted_AVG0.2580.0000.333Hitting_AVG0.231--0.231-
predicted_BB0.3101.0000.000Hitting_BB0.3240.0000.6761.000
predicted_CS-0.0000.000BaseRunning_CS0.0390.000-0.0390.000
predicted_H0.5300.0001.000Hitting_H0.5880.000-0.5880.000
predicted_HR0.0800.0000.000Hitting_HR0.0880.000-0.0880.000
predicted_OBP0.3230.2500.333Hitting_OBP0.352--0.102-
predicted_R0.3330.0000.000Hitting_R0.3240.000-0.3240.000
predicted_RBI0.2700.0000.000Hitting_RBI0.2450.000-0.2450.000
predicted_SLG0.3690.0000.333Hitting_SLG0.415--0.415-
predicted_SO1.0001.0001.000Hitting_SO1.0590.000-0.0591.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics2
Deboosted Metrics7
Better Metrics2
Worse Metrics7
Biggest Boostpredicted_BB: 0.3100 -> 1.0000 (boost 0.6900, better)
Biggest Deboostpredicted_H: 0.5300 -> 0.0000 (deboost -0.5300, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend21111predicted_AB: 2.5000 -> 2.5570 (boost 0.0570, better)predicted_AVG: 0.2580 -> 0.2370 (deboost -0.0210, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_AVG: 0.2370 -> 0.2043 (deboost -0.0327, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72525predicted_H: 0.5224 -> 1.0000 (boost 0.4776, better)predicted_BB: 0.3550 -> 0.0000 (deboost -0.3550, worse)AB rounded to 3 (raw=2.56), rates preserved: AVG=0.204 HR/AB=0.031
5consistency_constraints10101-predicted_R: 0.3581 -> 0.0000 (deboost -0.3581, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2043 -> 0.3330 (boost 0.1287, better)predicted_SLG: 0.3648 -> 0.3330 (deboost -0.0318, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21111predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.3648 (boost 0.0318, better)predicted_AVG: 0.3330 -> 0.2043 (deboost -0.1287, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "669004",
  "player_name": "MJ Melendez",
  "position": "DH",
  "team": "NYM",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.119,
        "predicted_3B": 0.024,
        "predicted_AB": 2.5,
        "predicted_AVG": 0.258,
        "predicted_BB": 0.31,
        "predicted_H": 0.53,
        "predicted_HR": 0.08,
        "predicted_OBP": 0.323,
        "predicted_R": 0.333,
        "predicted_RBI": 0.27,
        "predicted_SLG": 0.369,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1335,
        "predicted_3B": 0.0201,
        "predicted_AB": 2.557,
        "predicted_AVG": 0.237,
        "predicted_BB": 0.3579,
        "predicted_H": 0.5343,
        "predicted_HBP": 0.066,
        "predicted_HR": 0.0808,
        "predicted_OBP": 0.3248,
        "predicted_R": 0.3719,
        "predicted_RBI": 0.2555,
        "predicted_SLG": 0.3684,
        "predicted_SO": 1.0059
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.119,
          "after": 0.1335,
          "delta": 0.0145,
          "percent_delta": 0.1218,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.024,
          "after": 0.0201,
          "delta": -0.0039,
          "percent_delta": -0.1625,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.5,
          "after": 2.557,
          "delta": 0.057,
          "percent_delta": 0.0228,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.258,
          "after": 0.237,
          "delta": -0.021,
          "percent_delta": -0.0814,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.31,
          "after": 0.3579,
          "delta": 0.0479,
          "percent_delta": 0.1545,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.53,
          "after": 0.5343,
          "delta": 0.0043,
          "percent_delta": 0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.08,
          "after": 0.0808,
          "delta": 0.0008,
          "percent_delta": 0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.323,
          "after": 0.3248,
          "delta": 0.0018,
          "percent_delta": 0.0056,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.333,
          "after": 0.3719,
          "delta": 0.0389,
          "percent_delta": 0.1168,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.27,
          "after": 0.2555,
          "delta": -0.0145,
          "percent_delta": -0.0537,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.369,
          "after": 0.3684,
          "delta": -0.0006,
          "percent_delta": -0.0016,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0059,
          "delta": 0.0059,
          "percent_delta": 0.0059,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.5,
          "after": 2.557,
          "delta": 0.057,
          "percent_delta": 0.0228,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.258,
          "after": 0.237,
          "delta": -0.021,
          "percent_delta": -0.0814,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 46
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1335,
        "predicted_3B": 0.0201,
        "predicted_AB": 2.557,
        "predicted_AVG": 0.2043,
        "predicted_BB": 0.355,
        "predicted_H": 0.5224,
        "predicted_HBP": 0.066,
        "predicted_HR": 0.0789,
        "predicted_OBP": 0.3013,
        "predicted_R": 0.3581,
        "predicted_RBI": 0.246,
        "predicted_SLG": 0.3648,
        "predicted_SO": 1.014
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1335,
          "after": 0.1335,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0201,
          "after": 0.0201,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.557,
          "after": 2.557,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.237,
          "after": 0.2043,
          "delta": -0.0327,
          "percent_delta": -0.138,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3579,
          "after": 0.355,
          "delta": -0.0029,
          "percent_delta": -0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.5343,
          "after": 0.5224,
          "delta": -0.0119,
          "percent_delta": -0.0223,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.066,
          "after": 0.066,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0808,
          "after": 0.0789,
          "delta": -0.0019,
          "percent_delta": -0.0235,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3248,
          "after": 0.3013,
          "delta": -0.0235,
          "percent_delta": -0.0724,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3719,
          "after": 0.3581,
          "delta": -0.0138,
          "percent_delta": -0.0371,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2555,
          "after": 0.246,
          "delta": -0.0095,
          "percent_delta": -0.0372,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3684,
          "after": 0.3648,
          "delta": -0.0036,
          "percent_delta": -0.0098,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0059,
          "after": 1.014,
          "delta": 0.0081,
          "percent_delta": 0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.237,
          "after": 0.2043,
          "delta": -0.0327,
          "percent_delta": -0.138,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.56), rates preserved: AVG=0.204 HR/AB=0.031",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1335,
          "after": 0.0,
          "delta": -0.1335,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0201,
          "after": 0.0,
          "delta": -0.0201,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.557,
          "after": 3.0,
          "delta": 0.443,
          "percent_delta": 0.1732,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.355,
          "after": 0.0,
          "delta": -0.355,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.5224,
          "after": 1.0,
          "delta": 0.4776,
          "percent_delta": 0.9142,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.066,
          "after": 0.0,
          "delta": -0.066,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0789,
          "after": 0.0,
          "delta": -0.0789,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.246,
          "after": 0.0,
          "delta": -0.246,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.014,
          "after": 1.0,
          "delta": -0.014,
          "percent_delta": -0.0138,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.5224,
          "after": 1.0,
          "delta": 0.4776,
          "percent_delta": 0.9142,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.355,
          "after": 0.0,
          "delta": -0.355,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3581,
          "after": 0.0,
          "delta": -0.3581,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3581,
          "after": 0.0,
          "delta": -0.3581,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2043,
          "after": 0.333,
          "delta": 0.1287,
          "percent_delta": 0.63,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3013,
          "after": 0.333,
          "delta": 0.0317,
          "percent_delta": 0.1052,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3648,
          "after": 0.333,
          "delta": -0.0318,
          "percent_delta": -0.0872,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2043,
          "after": 0.333,
          "delta": 0.1287,
          "percent_delta": 0.63,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3648,
          "after": 0.333,
          "delta": -0.0318,
          "percent_delta": -0.0872,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2043,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3013,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3648,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2043,
          "delta": -0.1287,
          "percent_delta": -0.3865,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3013,
          "delta": -0.0317,
          "percent_delta": -0.0952,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3648,
          "delta": 0.0318,
          "percent_delta": 0.0955,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3648,
          "delta": 0.0318,
          "percent_delta": 0.0955,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2043,
          "delta": -0.1287,
          "percent_delta": -0.3865,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.119,
        "after": 0.0,
        "delta": -0.119,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.024,
        "after": 0.0,
        "delta": -0.024,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.5,
        "after": 3.0,
        "delta": 0.5,
        "percent_delta": 0.2,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.258,
        "after": 0.2043,
        "delta": -0.0537,
        "percent_delta": -0.2081,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.31,
        "after": 1.0,
        "delta": 0.69,
        "percent_delta": 2.2258,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.53,
        "after": 0.0,
        "delta": -0.53,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.08,
        "after": 0.0,
        "delta": -0.08,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.323,
        "after": 0.3013,
        "delta": -0.0217,
        "percent_delta": -0.0672,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.333,
        "after": 0.0,
        "delta": -0.333,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.27,
        "after": 0.0,
        "delta": -0.27,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.369,
        "after": 0.3648,
        "delta": -0.0042,
        "percent_delta": -0.0114,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 2,
      "deboosted_metrics": 7,
      "better_metrics": 2,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.31,
        "after": 1.0,
        "delta": 0.69,
        "percent_delta": 2.2258,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.53,
        "after": 0.0,
        "delta": -0.53,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.119-
predicted_3B0.024-
predicted_AB2.500-
predicted_AVG0.258-
predicted_BB0.310-
predicted_H0.530-
predicted_HR0.080-
predicted_OBP0.323-
predicted_R0.333-
predicted_RBI0.270-
predicted_SLG0.369-
predicted_SO1.000-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1340.015
predicted_3B0.020-0.004
predicted_AB2.5570.057
predicted_AVG0.237-0.021
predicted_BB0.3580.048
predicted_H0.5340.004
predicted_HBP0.066-
predicted_HR0.0810.001
predicted_OBP0.3250.002
predicted_R0.3720.039
predicted_RBI0.256-0.015
predicted_SLG0.368-0.001
predicted_SO1.0060.006
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1340.000
predicted_3B0.0200.000
predicted_AB2.5570.000
predicted_AVG0.204-0.033
predicted_BB0.355-0.003
predicted_H0.522-0.012
predicted_HBP0.0660.000
predicted_HR0.079-0.002
predicted_OBP0.301-0.023
predicted_R0.358-0.014
predicted_RBI0.246-0.010
predicted_SLG0.365-0.004
predicted_SO1.0140.008
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.56), rates preserved: AVG=0.204 HR/AB=0.031

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.134
predicted_3B0.000-0.020
predicted_AB3.0000.443
predicted_AVG0.3330.129
predicted_BB0.000-0.355
predicted_H1.0000.478
predicted_HR0.000-0.079
predicted_OBP0.3330.032
predicted_R0.000-0.358
predicted_RBI0.000-0.246
predicted_SLG0.333-0.032
predicted_SO1.000-0.014
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 46
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-11.0002.0001.0000.0000.0000.0003.0004.0006.0000.18180.40000.27270.18180.00000.00000.36360.5454
last_100.2010-27.0005.0002.0000.0001.0002.0005.0005.00010.0000.18520.31250.37040.18520.03700.07410.18520.3704
season0.6046-105.00021.0005.0001.0004.00011.00014.00013.00042.0000.20000.31450.38100.20000.03810.10480.12380.4000
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1560
predicted_3B0.0140
predicted_AB2.6450
predicted_AVG0.2045
predicted_BB0.4320
predicted_H0.5410
predicted_HBP0.0660
predicted_HR0.0820
predicted_OBP0.3277
predicted_R0.4320
predicted_RBI0.2330
predicted_SLG0.3675
predicted_SO1.0150
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.11900.15600.1335model_form_blend
predicted_3B0.02400.01400.0201model_form_blend
predicted_AB2.50002.64502.5570model_form_blend
predicted_AVG0.25800.20450.2370model_form_blend
predicted_BB0.31000.43200.3579model_form_blend
predicted_H0.53000.54100.5343model_form_blend
predicted_HBP-0.06600.0660form_only
predicted_HR0.08000.08200.0808model_form_blend
predicted_OBP0.32300.32770.3248model_form_blend
predicted_R0.33300.43200.3719model_form_blend
predicted_RBI0.27000.23300.2555model_form_blend
predicted_SLG0.36900.36750.3684model_form_blend
predicted_SO1.00001.01501.0059model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date102
Season rows before report date102
Report year2026
Profile rows used46
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO1
SF0
HBP0
season_avg0.2

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder3
Hitting_substitutionOrder1
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedLF
gameID20260617_NYM@CIN
game_typeshort
mlbID669004
playerID669004
playerNameMJ Melendez
posDH
startedFalse
startingPositionLF
teamNYM
teamID18
game_date2026-06-17
sl_k_percent33.9
sl_bb_percent11.0
sl_woba0.313
sl_xwoba0.276
sl_xba0.164
sl_xslg0.31
sl_sweet_spot_percent27.7
sl_barrel_batted_rate10.8
sl_hard_hit_percent55.4
sl_exit_velocity_avg93.9
sl_launch_angle_avg23.9
sl_whiff_percent34.4
sl_swing_percent46.5
Francisco Alvarez (682626) · BATTER · C · Team NYM
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 137
All-history rows before 20260618: 137
System season_avg: 0.2500
Data season_avg (2026 season-to-date): 0.2392
Diff (system - data): 0.0108
System opponent_avg: 0.3000

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1190.0000.000Hitting_2B0.1090.000-0.1090.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.2383.0003.000Hitting_AB3.3875.000-0.387-2.000
predicted_AVG0.2620.3330.333Hitting_AVG0.2390.6000.094-0.267
predicted_BB0.3101.0000.000Hitting_BB0.3280.0000.6721.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.7501.0001.000Hitting_H0.8103.0000.190-2.000
predicted_HR0.1100.0000.000Hitting_HR0.1460.000-0.1460.000
predicted_OBP0.3280.5000.333Hitting_OBP0.3160.6000.184-0.100
predicted_R0.3100.0000.000Hitting_R0.3651.000-0.365-1.000
predicted_RBI0.3400.0000.000Hitting_RBI0.3361.000-0.336-1.000
predicted_SLG0.3950.3330.333Hitting_SLG0.4010.600-0.068-0.267
predicted_SO0.8330.0001.000Hitting_SO0.8390.000-0.8390.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics2
Deboosted Metrics9
Better Metrics3
Worse Metrics8
Biggest Boostpredicted_BB: 0.3100 -> 1.0000 (boost 0.6900, better)
Biggest Deboostpredicted_SO: 0.8330 -> 0.0000 (deboost -0.8330, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend22020predicted_AB: 3.2380 -> 3.3147 (boost 0.0767, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3311 -> 0.3066 (deboost -0.0245, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_H: 0.8044 -> 1.0000 (boost 0.1956, better)predicted_RBI: 0.3266 -> 0.0000 (deboost -0.3266, worse)AB rounded to 3 (raw=3.31), rates preserved: AVG=0.243 HR/AB=0.031
5bvp_blend00000--Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.333)
6consistency_constraints10101-predicted_R: 0.3023 -> 0.0000 (deboost -0.3023, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context32121predicted_AVG: 0.2427 -> 0.3330 (boost 0.0903, better)predicted_SLG: 0.3710 -> 0.3330 (deboost -0.0380, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference21120predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
9current_json_final31212predicted_SLG: 0.3330 -> 0.3710 (boost 0.0380, better)predicted_AVG: 0.3330 -> 0.2427 (deboost -0.0903, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "682626",
  "player_name": "Francisco Alvarez",
  "position": "C",
  "team": "NYM",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.119,
        "predicted_3B": 0.0,
        "predicted_AB": 3.238,
        "predicted_AVG": 0.262,
        "predicted_BB": 0.31,
        "predicted_H": 0.75,
        "predicted_HR": 0.11,
        "predicted_OBP": 0.328,
        "predicted_R": 0.31,
        "predicted_RBI": 0.34,
        "predicted_SLG": 0.395,
        "predicted_SO": 0.833
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1146,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.3147,
        "predicted_AVG": 0.2658,
        "predicted_BB": 0.308,
        "predicted_H": 0.8227,
        "predicted_HBP": 0.03,
        "predicted_HR": 0.1056,
        "predicted_OBP": 0.3311,
        "predicted_R": 0.314,
        "predicted_RBI": 0.3392,
        "predicted_SLG": 0.3934,
        "predicted_SO": 0.8382
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.119,
          "after": 0.1146,
          "delta": -0.0044,
          "percent_delta": -0.037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.238,
          "after": 3.3147,
          "delta": 0.0767,
          "percent_delta": 0.0237,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.262,
          "after": 0.2658,
          "delta": 0.0038,
          "percent_delta": 0.0145,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.31,
          "after": 0.308,
          "delta": -0.002,
          "percent_delta": -0.0065,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.75,
          "after": 0.8227,
          "delta": 0.0727,
          "percent_delta": 0.0969,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.11,
          "after": 0.1056,
          "delta": -0.0044,
          "percent_delta": -0.04,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.328,
          "after": 0.3311,
          "delta": 0.0031,
          "percent_delta": 0.0095,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.31,
          "after": 0.314,
          "delta": 0.004,
          "percent_delta": 0.0129,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.34,
          "after": 0.3392,
          "delta": -0.0008,
          "percent_delta": -0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.395,
          "after": 0.3934,
          "delta": -0.0016,
          "percent_delta": -0.0041,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.833,
          "after": 0.8382,
          "delta": 0.0052,
          "percent_delta": 0.0062,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.238,
          "after": 3.3147,
          "delta": 0.0767,
          "percent_delta": 0.0237,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 42
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1146,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.3147,
        "predicted_AVG": 0.2427,
        "predicted_BB": 0.3055,
        "predicted_H": 0.8044,
        "predicted_HBP": 0.03,
        "predicted_HR": 0.1031,
        "predicted_OBP": 0.3066,
        "predicted_R": 0.3023,
        "predicted_RBI": 0.3266,
        "predicted_SLG": 0.371,
        "predicted_SO": 0.845
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1146,
          "after": 0.1146,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.3147,
          "after": 3.3147,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2658,
          "after": 0.2427,
          "delta": -0.0231,
          "percent_delta": -0.0869,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.308,
          "after": 0.3055,
          "delta": -0.0025,
          "percent_delta": -0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8227,
          "after": 0.8044,
          "delta": -0.0183,
          "percent_delta": -0.0222,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.03,
          "after": 0.03,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1056,
          "after": 0.1031,
          "delta": -0.0025,
          "percent_delta": -0.0237,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3311,
          "after": 0.3066,
          "delta": -0.0245,
          "percent_delta": -0.074,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.314,
          "after": 0.3023,
          "delta": -0.0117,
          "percent_delta": -0.0373,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3392,
          "after": 0.3266,
          "delta": -0.0126,
          "percent_delta": -0.0371,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3934,
          "after": 0.371,
          "delta": -0.0224,
          "percent_delta": -0.0569,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8382,
          "after": 0.845,
          "delta": 0.0068,
          "percent_delta": 0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3311,
          "after": 0.3066,
          "delta": -0.0245,
          "percent_delta": -0.074,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.31), rates preserved: AVG=0.243 HR/AB=0.031",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1146,
          "after": 0.0,
          "delta": -0.1146,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.3147,
          "after": 3.0,
          "delta": -0.3147,
          "percent_delta": -0.0949,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3055,
          "after": 0.0,
          "delta": -0.3055,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8044,
          "after": 1.0,
          "delta": 0.1956,
          "percent_delta": 0.2432,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.03,
          "after": 0.0,
          "delta": -0.03,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1031,
          "after": 0.0,
          "delta": -0.1031,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3266,
          "after": 0.0,
          "delta": -0.3266,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.845,
          "after": 1.0,
          "delta": 0.155,
          "percent_delta": 0.1834,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.8044,
          "after": 1.0,
          "delta": 0.1956,
          "percent_delta": 0.2432,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3266,
          "after": 0.0,
          "delta": -0.3266,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.333)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9333,
        "bvp": 0.0667
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3023,
          "after": 0.0,
          "delta": -0.3023,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3023,
          "after": 0.0,
          "delta": -0.3023,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2427,
          "after": 0.333,
          "delta": 0.0903,
          "percent_delta": 0.3721,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3066,
          "after": 0.333,
          "delta": 0.0264,
          "percent_delta": 0.0861,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.371,
          "after": 0.333,
          "delta": -0.038,
          "percent_delta": -0.1024,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2427,
          "after": 0.333,
          "delta": 0.0903,
          "percent_delta": 0.3721,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.371,
          "after": 0.333,
          "delta": -0.038,
          "percent_delta": -0.1024,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2427,
        "predicted_BB": 1.0,
        "predicted_C": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3066,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.371,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2427,
          "delta": -0.0903,
          "percent_delta": -0.2713,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3066,
          "delta": -0.0264,
          "percent_delta": -0.0794,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.371,
          "delta": 0.038,
          "percent_delta": 0.1143,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.371,
          "delta": 0.038,
          "percent_delta": 0.1143,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2427,
          "delta": -0.0903,
          "percent_delta": -0.2713,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.119,
        "after": 0.0,
        "delta": -0.119,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.238,
        "after": 3.0,
        "delta": -0.238,
        "percent_delta": -0.0735,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.262,
        "after": 0.2427,
        "delta": -0.0193,
        "percent_delta": -0.0737,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.31,
        "after": 1.0,
        "delta": 0.69,
        "percent_delta": 2.2258,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.75,
        "after": 1.0,
        "delta": 0.25,
        "percent_delta": 0.3333,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.11,
        "after": 0.0,
        "delta": -0.11,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.328,
        "after": 0.3066,
        "delta": -0.0214,
        "percent_delta": -0.0652,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.31,
        "after": 0.0,
        "delta": -0.31,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.34,
        "after": 0.0,
        "delta": -0.34,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.395,
        "after": 0.371,
        "delta": -0.024,
        "percent_delta": -0.0608,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.833,
        "after": 0.0,
        "delta": -0.833,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 2,
      "deboosted_metrics": 9,
      "better_metrics": 3,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.31,
        "after": 1.0,
        "delta": 0.69,
        "percent_delta": 2.2258,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.833,
        "after": 0.0,
        "delta": -0.833,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.119-
predicted_3B0.000-
predicted_AB3.238-
predicted_AVG0.262-
predicted_BB0.310-
predicted_H0.750-
predicted_HR0.110-
predicted_OBP0.328-
predicted_R0.310-
predicted_RBI0.340-
predicted_SLG0.395-
predicted_SO0.833-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.115-0.004
predicted_3B0.0010.001
predicted_AB3.3150.077
predicted_AVG0.2660.004
predicted_BB0.308-0.002
predicted_H0.8230.073
predicted_HBP0.030-
predicted_HR0.106-0.004
predicted_OBP0.3310.003
predicted_R0.3140.004
predicted_RBI0.339-0.001
predicted_SLG0.393-0.002
predicted_SO0.8380.005
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1150.000
predicted_3B0.0010.000
predicted_AB3.3150.000
predicted_AVG0.243-0.023
predicted_BB0.305-0.003
predicted_H0.804-0.018
predicted_HBP0.0300.000
predicted_HR0.103-0.003
predicted_OBP0.307-0.025
predicted_R0.302-0.012
predicted_RBI0.327-0.013
predicted_SLG0.371-0.022
predicted_SO0.8450.007
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.31), rates preserved: AVG=0.243 HR/AB=0.031

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.333)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.115
predicted_3B0.000-0.001
predicted_AB3.000-0.315
predicted_AVG0.3330.090
predicted_BB0.000-0.305
predicted_H1.0000.196
predicted_HR0.000-0.103
predicted_OBP0.3330.026
predicted_R0.000-0.302
predicted_RBI0.000-0.327
predicted_SLG0.333-0.038
predicted_SO1.0000.155
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 42
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0006.0000.0000.0000.0001.0001.0002.0004.0000.33330.40000.33330.33330.00000.05560.11110.2222
last_100.2010-34.00010.0001.0000.0001.0004.0003.0002.0009.0000.29410.33330.41180.29410.02940.11770.05880.2647
season0.6042-136.00034.0005.0000.0005.00013.00013.00013.00035.0000.25000.32240.39710.25000.03680.09560.09560.2574
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1080
predicted_3B0.0020
predicted_AB3.4290
predicted_AVG0.2714
predicted_BB0.3050
predicted_H0.9310
predicted_HBP0.0300
predicted_HR0.0990
predicted_OBP0.3357
predicted_R0.3200
predicted_RBI0.3380
predicted_SLG0.3910
predicted_SO0.8460
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.11900.10800.1146model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB3.23803.42903.3147model_form_blend
predicted_AVG0.26200.27140.2658model_form_blend
predicted_BB0.31000.30500.3080model_form_blend
predicted_H0.75000.93100.8227model_form_blend
predicted_HBP-0.03000.0300form_only
predicted_HR0.11000.09900.1056model_form_blend
predicted_OBP0.32800.33570.3311model_form_blend
predicted_R0.31000.32000.3140model_form_blend
predicted_RBI0.34000.33800.3392model_form_blend
predicted_SLG0.39500.39100.3934model_form_blend
predicted_SO0.83300.84600.8382model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date137
Season rows before report date137
Report year2026
Profile rows used42
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B0
3B0
HR0
R0
RBI0
BB1
SO0
SF0
HBP0
season_avg0.25

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.6
Hitting_BB0
Hitting_GIDP0
Hitting_H3
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB3
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260617_NYM@CIN
game_typefull
mlbID682626
playerID682626
playerNameFrancisco Alvarez
posC
startedTrue
startingPositionDH
teamNYM
teamID18
game_date2026-06-17
sl_k_percent22.6
sl_bb_percent8.4
sl_woba0.324
sl_xwoba0.35
sl_xba0.26
sl_xslg0.476
sl_sweet_spot_percent32.0
sl_barrel_batted_rate16.5
sl_hard_hit_percent43.7
sl_exit_velocity_avg90.6
sl_launch_angle_avg9.4
sl_whiff_percent29.5
sl_swing_percent46.9
Sean Manaea (640455) · PITCHER · Starter · Team NYM
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 15
All-history rows before 20260618: 15

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB1.1330.000-1.1330.000
predicted_ER2.0002.0002.000Pitching_ER1.7332.0000.2670.000
predicted_H5.0005.0005.000Pitching_H3.2674.0001.7331.000
predicted_IP5.1005.1005.100Pitching_InningsPitched3.1276.0001.973-0.900
predicted_SO7.0007.0007.000Pitching_SO3.4006.0003.6001.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 5.3333 -> 5.1000 (deboost -0.2333, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_IP: 5.3333 -> 5.1000 (deboost -0.2333, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "640455",
  "player_name": "Sean Manaea",
  "position": "Starter",
  "team": "NYM",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 2.0,
        "predicted_H": 5.0,
        "predicted_HR": 2.0,
        "predicted_IP": 5.3333,
        "predicted_SO": 7.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 2.0,
        "predicted_H": 5.0,
        "predicted_HR": 2.0,
        "predicted_IP": 5.1,
        "predicted_R": 2.0,
        "predicted_SO": 7.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.3333,
          "after": 5.1,
          "delta": -0.2333,
          "percent_delta": -0.0438,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 7.0,
          "after": 7.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 5.3333,
          "after": 5.1,
          "delta": -0.2333,
          "percent_delta": -0.0438,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 5.0,
        "after": 5.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 5.3333,
        "after": 5.1,
        "delta": -0.2333,
        "percent_delta": -0.0437,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 7.0,
        "after": 7.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 5.3333,
        "after": 5.1,
        "delta": -0.2333,
        "percent_delta": -0.0437,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER2.000-
predicted_H5.000-
predicted_HR2.000-
predicted_IP5.333-
predicted_SO7.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 15
Reference playing time: 5.333
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.45521.2007.00016.0004.00022.0003.0002.90770.92310.32310.73850.18461.01540.1385
last_100.351033.00018.00033.00010.00039.0004.0004.90911.30300.54541.00000.30301.18180.1212
season0.201549.00026.00049.00017.00051.0006.0004.77551.34690.53061.00000.34691.04080.1225
Weighted Prediction From Real Data
MetricValue
predicted_BB1.1870
predicted_ER1.9060
predicted_ERA4.1134
predicted_H3.7760
predicted_HR0.5560
predicted_IP4.1000
predicted_SO4.3520
predicted_WHIP1.1899
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00001.18700.6462model_form_blend
predicted_ER2.00001.90601.9488model_form_blend
predicted_ERA-4.11344.1134form_only
predicted_H5.00003.77604.3337model_form_blend
predicted_HR2.00000.55601.2139model_form_blend
predicted_IP5.10004.10004.2000model_form_blend
predicted_SO7.00004.35205.5585model_form_blend
predicted_WHIP-1.18991.1899form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date15
Season rows before report date15
Report year2026
Profile rows used15
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP5.1
H5
R2
ER2
BB0
SO7
HR2
BF21
Pitches87

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced22
Pitching_ER2
Pitching_ERA4.78
Pitching_Flyouts4
Pitching_Groundouts6
Pitching_H4
Pitching_HBP0
Pitching_HR1
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched6.0
Pitching_Pitches84
Pitching_R2
Pitching_SO6
Pitching_Strikes59
Pitching_Wild Pitch0
Pitching_decisionL
Pitching_pitchingOrder1
allPositionsPlayedP
gameID20260613_ATL@NYM
game_typefull
mlbID640455
playerID640455
playerNameSean Manaea
posP
startedTrue
startingPositionP
teamNYM
teamID18
game_date2026-06-13
sl_k_percent23.8
sl_bb_percent7.9
sl_woba0.334
sl_xwoba0.318
sl_sweet_spot_percent35.2
sl_barrel_batted_rate9.2
sl_hard_hit_percent38.0
sl_whiff_percent22.8
sl_swing_percent47.4
sl_avg_best_speed76.254124429
sl_avg_hyper_speed94.057223714
Brooks Raley (548384) · PITCHER · Middle Reliever · Team NYM
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 30
All-history rows before 20260618: 30

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.4000.000-0.4000.000
predicted_ER0.0000.0000.000Pitching_ER0.2000.000-0.2000.000
predicted_H0.0000.0000.000Pitching_H0.7331.000-0.733-1.000
predicted_IP1.1001.1001.100Pitching_InningsPitched0.7371.0000.3630.100
predicted_SO0.0000.0000.000Pitching_SO1.0330.000-1.0330.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final11010predicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "548384",
  "player_name": "Brooks Raley",
  "position": "Middle Reliever",
  "team": "NYM",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.1,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 30
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.2002.0004.0002.0005.0000.0003.85711.28570.42860.85710.42861.07140.0000
last_100.35108.2003.0009.0004.00010.0001.0003.11541.50000.34621.03850.46151.15390.1154
season0.203027.0006.00022.00012.00031.0002.0002.00001.25930.22220.81480.44441.14820.0741
Weighted Prediction From Real Data
MetricValue
predicted_BB0.4050
predicted_ER0.4270
predicted_ERA3.8447
predicted_H0.9420
predicted_HR0.0990
predicted_IP1.0000
predicted_SO1.0300
predicted_WHIP1.3466
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.40500.1807model_form_blend
predicted_ER0.00000.42700.1905model_form_blend
predicted_ERA-3.84473.8447form_only
predicted_H0.00000.94200.4203model_form_blend
predicted_HR0.00000.09900.0442model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00001.03000.4595model_form_blend
predicted_WHIP-1.34661.3466form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date30
Season rows before report date30
Report year2026
Profile rows used30
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.1
H0
R0
ER0
BB0
SO0
HR0
BF4
Pitches17

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced5
Pitching_ER0
Pitching_ERA2.00
Pitching_Flyouts0
Pitching_Groundouts3
Pitching_H1
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches14
Pitching_R0
Pitching_SO0
Pitching_Strikes11
Pitching_Wild Pitch0
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260617_NYM@CIN
game_typefull
mlbID548384
playerID548384
playerNameBrooks Raley
posP
startedFalse
startingPositionP
teamNYM
teamID18
game_date2026-06-17
sl_k_percent26.5
sl_bb_percent10.3
sl_woba0.287
sl_xwoba0.296
sl_sweet_spot_percent38.9
sl_barrel_batted_rate6.9
sl_hard_hit_percent30.6
sl_whiff_percent26.0
sl_swing_percent44.6
sl_avg_best_speed76.279147714
sl_avg_hyper_speed93.191174493
Devin Williams (642207) · PITCHER · Middle Reliever · Team NYM
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 26
All-history rows before 20260618: 26

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.5380.000-0.5380.000
predicted_ER0.0000.0000.000Pitching_ER0.5000.000-0.5000.000
predicted_H1.0001.0001.000Pitching_H0.8082.0000.192-1.000
predicted_IP1.1001.1001.100Pitching_InningsPitched0.8351.1000.2650.000
predicted_SO1.0001.0001.000Pitching_SO1.4232.000-0.423-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final11010predicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "642207",
  "player_name": "Devin Williams",
  "position": "Middle Reliever",
  "team": "NYM",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.1,
        "predicted_R": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 25
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.1001.0003.0001.0009.0000.0001.68750.75000.18750.56250.18751.68750.0000
last_100.35109.2005.0006.0007.00015.0001.0004.65521.34480.51720.62070.72411.55170.1035
season0.202523.10011.00020.00011.00037.0002.0004.24291.32860.47140.85710.47141.58570.0857
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3960
predicted_ER0.4330
predicted_ERA3.8969
predicted_H0.8140
predicted_HR0.1010
predicted_IP1.0000
predicted_SO1.2660
predicted_WHIP1.2106
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.39600.1706model_form_blend
predicted_ER0.00000.43300.1865model_form_blend
predicted_ERA-3.89693.8969form_only
predicted_H1.00000.81400.9199model_form_blend
predicted_HR0.00000.10100.0435model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO1.00001.26601.1146model_form_blend
predicted_WHIP-1.21061.2106form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date26
Season rows before report date26
Report year2026
Profile rows used25
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.1
H1
R0
ER0
BB0
SO1
HR0
BF5
Pitches20

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced6
Pitching_ER0
Pitching_ERA5.01
Pitching_Flyouts1
Pitching_Groundouts0
Pitching_H2
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners2
Pitching_Inherited Runners Scored1
Pitching_InningsPitched1.1
Pitching_Pitches33
Pitching_R0
Pitching_SO2
Pitching_Strikes27
Pitching_Wild Pitch0
Pitching_decisionS
Pitching_pitchingOrder5
allPositionsPlayedP
gameID20260612_ATL@NYM
game_typefull
mlbID642207
playerID642207
playerNameDevin Williams
posP
startedFalse
startingPositionP
teamNYM
teamID18
game_date2026-06-12
sl_k_percent35.9
sl_bb_percent13.6
sl_woba0.324
sl_xwoba0.272
sl_sweet_spot_percent34.6
sl_barrel_batted_rate7.7
sl_hard_hit_percent25.0
sl_whiff_percent39.5
sl_swing_percent50.1
sl_avg_best_speed79.6207416
sl_avg_hyper_speed92.7856574
Luke Weaver (596133) · PITCHER · Middle Reliever · Team NYM
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 29
All-history rows before 20260618: 29

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB0.2760.0000.7241.000
predicted_ER0.0000.0000.000Pitching_ER0.2760.000-0.2760.000
predicted_H1.0001.0001.000Pitching_H0.6900.0000.3101.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.9971.0000.0030.000
predicted_SO0.0000.0000.000Pitching_SO1.0343.000-1.034-3.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "596133",
  "player_name": "Luke Weaver",
  "position": "Middle Reliever",
  "team": "NYM",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER0.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 29
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.0000.0001.0000.0005.0000.0000.00000.20000.00000.20000.00001.00000.0000
last_100.351010.2000.0004.0001.0009.0000.0000.00000.46880.00000.37500.09380.84380.0000
season0.202931.0008.00020.0008.00030.0002.0002.32260.90320.25810.64520.25810.96770.0645
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2090
predicted_ER0.2530
predicted_ERA2.2769
predicted_H0.6300
predicted_HR0.0730
predicted_IP1.0000
predicted_SO0.9380
predicted_WHIP0.8392
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00000.20900.6356model_form_blend
predicted_ER0.00000.25300.1165model_form_blend
predicted_ERA-2.27692.2769form_only
predicted_H1.00000.63000.8296model_form_blend
predicted_HR0.00000.07300.0336model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00000.93800.4321model_form_blend
predicted_WHIP-0.83920.8392form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date29
Season rows before report date29
Report year2026
Profile rows used29
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H1
R0
ER0
BB1
SO0
HR0
BF5
Pitches20

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA2.32
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches13
Pitching_R0
Pitching_SO3
Pitching_Strikes9
Pitching_Wild Pitch0
Pitching_pitchingOrder5
allPositionsPlayedP
gameID20260616_NYM@CIN
game_typefull
mlbID596133
playerID596133
playerNameLuke Weaver
posP
startedFalse
startingPositionP
teamNYM
teamID18
game_date2026-06-16
sl_k_percent24.6
sl_bb_percent6.6
sl_woba0.228
sl_xwoba0.278
sl_sweet_spot_percent28.9
sl_barrel_batted_rate9.6
sl_hard_hit_percent31.3
sl_whiff_percent28.0
sl_swing_percent51.8
sl_avg_best_speed79.537970732
sl_avg_hyper_speed93.082388642

Home Team: PHI

Home Pitcher Deep Analysis

FieldValue
PitcherAaron Nola
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score-0.1294
ESPN Rank267
Movement AvailableTrue
Primary Pitch-
Movement Score-0.2074
Avg Velo86.0246
Avg Spin2299.0760
HB Inches0
IVB Inches0
Release Extension0
Pre IP5
Pre ER4
Pre H6
Pre BB2
Pre SO3
Season ERA5.8585
Season WHIP1.4717
Role Avg IP5.0480
Recent Avg IP5
Last Start IP4.2000
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "PHI",
    "games": 81,
    "wins": 41,
    "losses": 40,
    "win_pct": 0.5062,
    "runs_scored": 328.0,
    "runs_allowed": 354.0,
    "run_differential": -26.0,
    "run_differential_per_game": -0.321,
    "avg_runs_scored": 4.0494,
    "avg_runs_allowed": 4.3704,
    "offense_index": 0.8986,
    "defense_index": 1.0311,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.1,
      "avg_runs_allowed": 4.6,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": 0.0011
  },
  "opponent": {
    "team": "NYM",
    "games": 81,
    "wins": 34,
    "losses": 47,
    "win_pct": 0.4198,
    "runs_scored": 318.0,
    "runs_allowed": 337.0,
    "run_differential": -19.0,
    "run_differential_per_game": -0.2346,
    "avg_runs_scored": 3.9259,
    "avg_runs_allowed": 4.1605,
    "offense_index": 0.8712,
    "defense_index": 1.0831,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 5.0,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.0968
  },
  "edges": {
    "quality_edge": 0.0979,
    "offense_edge": -0.1014,
    "opponent_offense_edge": -0.1288,
    "defense_strength": 0.0311,
    "opponent_defense_weakness": -0.0831,
    "recent_win_pct_edge": 0.1
  },
  "player_factors": {
    "ip": 1.01,
    "run_prevention": 0.9714,
    "strikeout": 1.0132
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "605400",
    "profile": {
      "available": true,
      "pitcher_id": "605400",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 221.0,
        "k_percent": 23.0,
        "bb_percent": 7.8,
        "woba": 0.36,
        "xwoba": 0.327,
        "sweet_spot_percent": 36.0,
        "barrel_batted_rate": 9.3,
        "hard_hit_percent": 38.8,
        "avg_best_speed": 76.3074,
        "avg_hyper_speed": 94.1882,
        "whiff_percent": 25.0,
        "swing_percent": 45.6
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.4314,
        "command_and_miss": 0.0671,
        "regression_edge": 0.9429,
        "xwoba_edge": -0.3429,
        "barrel_edge": -0.4444,
        "hard_hit_edge": -0.0714,
        "whiff_edge": -0.1,
        "bb_edge": 0.35,
        "pitch_design_score": -0.2074
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "605400",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 80,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 80,
          "pitch_usage": 0.0,
          "release_speed": 86.0245751140897,
          "release_spin_rate": 2299.076010454948,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 80,
            "pitch_usage": 0.0,
            "release_speed": 86.0245751140897,
            "release_spin_rate": 2299.076010454948,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 86.0246,
          "release_spin_rate": 2299.076,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.2074,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -1.4817,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": -0.1294,
      "sample_weight": 0.884,
      "run_prevention_factor": 1.011,
      "strikeout_factor": 0.999,
      "walk_factor": 0.9752,
      "homer_factor": 1.043,
      "woba_minus_xwoba": 0.033,
      "regression_flag": "positive_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "605400",
        "espn_id": 33709,
        "player_name": "Aaron Nola",
        "team": "PHI",
        "role": "pitcher",
        "espn_rank": 267,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 267,
          "gp_value": 14.0,
          "gp_rank": 279,
          "gs_value": 14.0,
          "gs_rank": 37,
          "qs_value": 4.0,
          "qs_rank": 73,
          "era_value": 5.8584,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 4.0,
          "l_rank": 62,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 70.2,
          "ip_rank": 72,
          "h_value": 80.0,
          "h_rank": 22,
          "er_value": 46.0,
          "er_rank": 7,
          "hr_value": 13.0,
          "hr_rank": 23,
          "bb_value": 24.0,
          "bb_rank": 68,
          "k_value": 71.0,
          "k_rank": 52,
          "k_per_9_value": 9.042453,
          "k_per_9_rank": 19,
          "whip_value": 1.4716,
          "whip_rank": null,
          "war_value": 0.21,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 3.0,
        "factor": 1.0097,
        "adjusted": 3
      },
      "predicted_H": {
        "original": 6.0,
        "factor": 1.0097,
        "adjusted": 6
      },
      "predicted_BB": {
        "original": 1.0,
        "factor": 0.9781,
        "adjusted": 1
      },
      "predicted_HR": {
        "original": 1.0,
        "factor": 1.038,
        "adjusted": 1
      },
      "predicted_SO": {
        "original": 5.0,
        "factor": 0.9991,
        "adjusted": 5
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 48.1,
    "ER": 36,
    "H": 57,
    "BB": 18,
    "SO": 47,
    "HR": 10,
    "ERA": 6.703448275862069,
    "WHIP": 1.5517241379310345,
    "K9": 8.751724137931035,
    "HR9": 1.8620689655172413,
    "games_pitched": 10,
    "quality_starts": 2,
    "dominant_form": false,
    "struggling_form": true
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "605400",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 80,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 80,
    "pitch_usage": 0.0,
    "release_speed": 86.0245751140897,
    "release_spin_rate": 2299.076010454948,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 80,
      "pitch_usage": 0.0,
      "release_speed": 86.0245751140897,
      "release_spin_rate": 2299.076010454948,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 86.0246,
    "release_spin_rate": 2299.076,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.2074,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -1.4817,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "role": "pitcher",
  "player_id": "605400",
  "report_date": "20260618_N",
  "season_year": 2026,
  "rows_used": 14,
  "reference_playing_time": 5.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 25.0,
        "ER": 16.0,
        "R": 16.0,
        "H": 27.0,
        "BB": 6.0,
        "SO": 25.0,
        "HR": 4.0,
        "BF": 108.0,
        "Pitches": 435.0
      },
      "per_game": {
        "IP": 5.0,
        "ER": 3.2,
        "R": 3.2,
        "H": 5.4,
        "BB": 1.2,
        "SO": 5.0,
        "HR": 0.8,
        "BF": 21.6,
        "Pitches": 87.0
      },
      "rates": {
        "ERA": 5.76,
        "WHIP": 1.32,
        "ER_per_IP": 0.64,
        "H_per_IP": 1.08,
        "BB_per_IP": 0.24,
        "SO_per_IP": 1.0,
        "HR_per_IP": 0.16
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 48.1,
        "ER": 36.0,
        "R": 36.0,
        "H": 57.0,
        "BB": 18.0,
        "SO": 47.0,
        "HR": 10.0,
        "BF": 216.0,
        "Pitches": 892.0
      },
      "per_game": {
        "IP": 4.2,
        "ER": 3.6,
        "R": 3.6,
        "H": 5.7,
        "BB": 1.8,
        "SO": 4.7,
        "HR": 1.0,
        "BF": 21.6,
        "Pitches": 89.2
      },
      "rates": {
        "ERA": 6.7034,
        "WHIP": 1.5517,
        "ER_per_IP": 0.74483,
        "H_per_IP": 1.17931,
        "BB_per_IP": 0.37241,
        "SO_per_IP": 0.97241,
        "HR_per_IP": 0.2069
      }
    },
    "season": {
      "games": 14,
      "totals": {
        "IP": 70.2,
        "ER": 46.0,
        "R": 46.0,
        "H": 80.0,
        "BB": 24.0,
        "SO": 71.0,
        "HR": 13.0,
        "BF": 309.0,
        "Pitches": 1249.0
      },
      "per_game": {
        "IP": 5.0,
        "ER": 3.2857,
        "R": 3.2857,
        "H": 5.7143,
        "BB": 1.7143,
        "SO": 5.0714,
        "HR": 0.9286,
        "BF": 22.0714,
        "Pitches": 89.2143
      },
      "rates": {
        "ERA": 5.8585,
        "WHIP": 1.4717,
        "ER_per_IP": 0.65094,
        "H_per_IP": 1.13208,
        "BB_per_IP": 0.33962,
        "SO_per_IP": 1.00472,
        "HR_per_IP": 0.18396
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 5.0,
    "predicted_ER": 3.106,
    "predicted_H": 5.334,
    "predicted_BB": 1.579,
    "predicted_SO": 4.802,
    "predicted_HR": 0.845,
    "predicted_ERA": 5.6883,
    "predicted_WHIP": 1.4066
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.4612,
  "form_weight": 0.5388,
  "form_reliability": 0.7368,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 5.0,
      "form": 5.0,
      "final": 5.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 4.0,
      "form": 3.106,
      "final": 3.5183,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 4.0,
      "form": 5.334,
      "final": 4.7188,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 2.0,
      "form": 1.579,
      "final": 1.7732,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 3.0,
      "form": 4.802,
      "final": 3.9709,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 1.0,
      "form": 0.845,
      "final": 0.9165,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 5.6883,
      "final": 5.6883,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.4066,
      "final": 1.4066,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherJhoan Duran
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.4662
ESPN Rank44
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H0
Pre BB0
Pre SO3
Season ERA1.1408
Season WHIP0.8451
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "PHI",
    "games": 81,
    "wins": 41,
    "losses": 40,
    "win_pct": 0.5062,
    "runs_scored": 328.0,
    "runs_allowed": 354.0,
    "run_differential": -26.0,
    "run_differential_per_game": -0.321,
    "avg_runs_scored": 4.0494,
    "avg_runs_allowed": 4.3704,
    "offense_index": 0.8986,
    "defense_index": 1.0311,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.1,
      "avg_runs_allowed": 4.6,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": 0.0011
  },
  "opponent": {
    "team": "NYM",
    "games": 81,
    "wins": 34,
    "losses": 47,
    "win_pct": 0.4198,
    "runs_scored": 318.0,
    "runs_allowed": 337.0,
    "run_differential": -19.0,
    "run_differential_per_game": -0.2346,
    "avg_runs_scored": 3.9259,
    "avg_runs_allowed": 4.1605,
    "offense_index": 0.8712,
    "defense_index": 1.0831,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 5.0,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.0968
  },
  "edges": {
    "quality_edge": 0.0979,
    "offense_edge": -0.1014,
    "opponent_offense_edge": -0.1288,
    "defense_strength": 0.0311,
    "opponent_defense_weakness": -0.0831,
    "recent_win_pct_edge": 0.1
  },
  "player_factors": {
    "ip": 1.01,
    "run_prevention": 0.9714,
    "strikeout": 1.0132
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "661395",
    "profile": {
      "available": true,
      "pitcher_id": "661395",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 65.0,
        "k_percent": 38.5,
        "bb_percent": 5.5,
        "woba": 0.24,
        "xwoba": 0.242,
        "sweet_spot_percent": 27.5,
        "barrel_batted_rate": 5.9,
        "hard_hit_percent": 49.0,
        "avg_best_speed": 82.5465,
        "avg_hyper_speed": 95.402,
        "whiff_percent": 39.6,
        "swing_percent": 52.3
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.9741,
        "command_and_miss": 1.9086,
        "regression_edge": -0.0571,
        "xwoba_edge": 2.0857,
        "barrel_edge": 0.3111,
        "hard_hit_edge": -1.5286,
        "whiff_edge": 1.9857,
        "bb_edge": 0.925,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "661395",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.4662,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9604,
      "strikeout_factor": 1.0769,
      "walk_factor": 0.9667,
      "homer_factor": 0.9882,
      "woba_minus_xwoba": -0.002,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "661395",
        "espn_id": 41109,
        "player_name": "Jhoan Duran",
        "team": "PHI",
        "role": "pitcher",
        "espn_rank": 44,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 44,
          "gp_value": 25.0,
          "gp_rank": 125,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 1.9014,
          "era_rank": null,
          "w_value": 1.0,
          "w_rank": 287,
          "l_value": 3.0,
          "l_rank": 110,
          "sv_value": 18.0,
          "sv_rank": 3,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 23.2,
          "ip_rank": 339,
          "h_value": 18.0,
          "h_rank": 367,
          "er_value": 5.0,
          "er_rank": 496,
          "hr_value": 1.0,
          "hr_rank": 453,
          "bb_value": 5.0,
          "bb_rank": 474,
          "k_value": 35.0,
          "k_rank": 199,
          "k_per_9_value": 13.309859,
          "k_per_9_rank": 15,
          "whip_value": 0.9718,
          "whip_rank": null,
          "war_value": 1.55,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9822,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9822,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.985,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9947,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0346,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.0,
    "ER": 0,
    "H": 4,
    "BB": 0,
    "SO": 12,
    "HR": 0,
    "ERA": 0.0,
    "WHIP": 0.4444444444444444,
    "K9": 12.0,
    "HR9": 0.0,
    "games_pitched": 9,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "661395",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.7,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4845,
    "prior_weight": 0.5155
  },
  "role": "pitcher",
  "player_id": "661395",
  "report_date": "20260618_N",
  "season_year": 2026,
  "rows_used": 24,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 3.0,
        "BB": 0.0,
        "SO": 6.0,
        "HR": 0.0,
        "BF": 17.0,
        "Pitches": 62.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.6,
        "BB": 0.0,
        "SO": 1.2,
        "HR": 0.0,
        "BF": 3.4,
        "Pitches": 12.4
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 0.6,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.6,
        "BB_per_IP": 0.0,
        "SO_per_IP": 1.2,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 5.0,
        "BB": 0.0,
        "SO": 13.0,
        "HR": 0.0,
        "BF": 34.0,
        "Pitches": 135.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.5,
        "BB": 0.0,
        "SO": 1.3,
        "HR": 0.0,
        "BF": 3.4,
        "Pitches": 13.5
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 0.5,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.5,
        "BB_per_IP": 0.0,
        "SO_per_IP": 1.3,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 24,
      "totals": {
        "IP": 23.2,
        "ER": 3.0,
        "R": 4.0,
        "H": 15.0,
        "BB": 5.0,
        "SO": 35.0,
        "HR": 1.0,
        "BF": 88.0,
        "Pitches": 359.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.125,
        "R": 0.1667,
        "H": 0.625,
        "BB": 0.2083,
        "SO": 1.4583,
        "HR": 0.0417,
        "BF": 3.6667,
        "Pitches": 14.9583
      },
      "rates": {
        "ERA": 1.1408,
        "WHIP": 0.8451,
        "ER_per_IP": 0.12676,
        "H_per_IP": 0.6338,
        "BB_per_IP": 0.21127,
        "SO_per_IP": 1.47887,
        "HR_per_IP": 0.04225
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.271,
    "predicted_H": 0.779,
    "predicted_BB": 0.208,
    "predicted_SO": 1.109,
    "predicted_HR": 0.079,
    "predicted_ERA": 2.4345,
    "predicted_WHIP": 0.9868
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5678,
  "form_weight": 0.4322,
  "form_reliability": 0.4845,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.7,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4845,
    "prior_weight": 0.5155
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.271,
      "final": 0.1171,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 2.0,
      "form": 0.779,
      "final": 1.4723,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.208,
      "final": 0.0899,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 3.0,
      "form": 1.109,
      "final": 2.1827,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.079,
      "final": 0.0341,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 2.4345,
      "final": 2.4345,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 0.9868,
      "final": 0.9868,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherJonathan Bowlan
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.4527
ESPN Rank251
Movement AvailableTrue
Primary Pitch-
Movement Score0.1786
Avg Velo92.9186
Avg Spin2274.8166
HB Inches0
IVB Inches0
Release Extension0
Pre IP1
Pre ER0
Pre H0
Pre BB1
Pre SO0
Season ERA3.5735
Season WHIP1.0588
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "PHI",
    "games": 81,
    "wins": 41,
    "losses": 40,
    "win_pct": 0.5062,
    "runs_scored": 328.0,
    "runs_allowed": 354.0,
    "run_differential": -26.0,
    "run_differential_per_game": -0.321,
    "avg_runs_scored": 4.0494,
    "avg_runs_allowed": 4.3704,
    "offense_index": 0.8986,
    "defense_index": 1.0311,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.1,
      "avg_runs_allowed": 4.6,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": 0.0011
  },
  "opponent": {
    "team": "NYM",
    "games": 81,
    "wins": 34,
    "losses": 47,
    "win_pct": 0.4198,
    "runs_scored": 318.0,
    "runs_allowed": 337.0,
    "run_differential": -19.0,
    "run_differential_per_game": -0.2346,
    "avg_runs_scored": 3.9259,
    "avg_runs_allowed": 4.1605,
    "offense_index": 0.8712,
    "defense_index": 1.0831,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 5.0,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.0968
  },
  "edges": {
    "quality_edge": 0.0979,
    "offense_edge": -0.1014,
    "opponent_offense_edge": -0.1288,
    "defense_strength": 0.0311,
    "opponent_defense_weakness": -0.0831,
    "recent_win_pct_edge": 0.1
  },
  "player_factors": {
    "ip": 1.01,
    "run_prevention": 0.9714,
    "strikeout": 1.0132
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "680742",
    "profile": {
      "available": true,
      "pitcher_id": "680742",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 71.0,
        "k_percent": 25.3,
        "bb_percent": 4.4,
        "woba": 0.252,
        "xwoba": 0.243,
        "sweet_spot_percent": 29.7,
        "barrel_batted_rate": 3.1,
        "hard_hit_percent": 34.4,
        "avg_best_speed": 76.7246,
        "avg_hyper_speed": 92.8274,
        "whiff_percent": 31.8,
        "swing_percent": 48.2
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 1.3882,
        "command_and_miss": 0.725,
        "regression_edge": 0.2571,
        "xwoba_edge": 2.0571,
        "barrel_edge": 0.9333,
        "hard_hit_edge": 0.5571,
        "whiff_edge": 0.8714,
        "bb_edge": 1.2,
        "pitch_design_score": 0.1786
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "680742",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 18,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 18,
          "pitch_usage": 0.0,
          "release_speed": 92.91864746636017,
          "release_spin_rate": 2274.8166248712982,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 18,
            "pitch_usage": 0.0,
            "release_speed": 92.91864746636017,
            "release_spin_rate": 2274.8166248712982,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 92.9186,
          "release_spin_rate": 2274.8166,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": 0.1786,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": 1.2759,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.4527,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9615,
      "strikeout_factor": 1.0229,
      "walk_factor": 0.9568,
      "homer_factor": 0.9286,
      "woba_minus_xwoba": 0.009,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "680742",
        "espn_id": 41344,
        "player_name": "Jonathan Bowlan",
        "team": "PHI",
        "role": "pitcher",
        "espn_rank": 251,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 251,
          "gp_value": 22.0,
          "gp_rank": 157,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 3.5735,
          "era_rank": null,
          "w_value": 2.0,
          "w_rank": 180,
          "l_value": 0.0,
          "l_rank": 430,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 1.0,
          "hld_rank": 198,
          "ip_value": 22.2,
          "ip_rank": 350,
          "h_value": 20.0,
          "h_rank": 330,
          "er_value": 9.0,
          "er_rank": 360,
          "hr_value": 1.0,
          "hr_rank": 453,
          "bb_value": 4.0,
          "bb_rank": 502,
          "k_value": 23.0,
          "k_rank": 321,
          "k_per_9_value": 9.132353,
          "k_per_9_rank": 24,
          "whip_value": 1.0588,
          "whip_rank": null,
          "war_value": 0.28,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9827,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9827,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9806,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9679,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0103,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.0,
    "ER": 1,
    "H": 8,
    "BB": 1,
    "SO": 11,
    "HR": 1,
    "ERA": 0.9,
    "WHIP": 0.9,
    "K9": 9.9,
    "HR9": 0.9,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 1,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-17T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "680742",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 18,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 18,
    "pitch_usage": 0.0,
    "release_speed": 92.91864746636017,
    "release_spin_rate": 2274.8166248712982,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 18,
      "pitch_usage": 0.0,
      "release_speed": 92.91864746636017,
      "release_spin_rate": 2274.8166248712982,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 92.9186,
    "release_spin_rate": 2274.8166,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": 0.1786,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": 1.2759,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.501,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4738,
    "prior_weight": 0.5262
  },
  "role": "pitcher",
  "player_id": "680742",
  "report_date": "20260618_N",
  "season_year": 2026,
  "rows_used": 22,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.1,
        "ER": 0.0,
        "R": 1.0,
        "H": 4.0,
        "BB": 0.0,
        "SO": 7.0,
        "HR": 0.0,
        "BF": 20.0,
        "Pitches": 75.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.2,
        "H": 0.8,
        "BB": 0.0,
        "SO": 1.4,
        "HR": 0.0,
        "BF": 4.0,
        "Pitches": 15.0
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 0.75,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.75,
        "BB_per_IP": 0.0,
        "SO_per_IP": 1.3125,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.0,
        "ER": 1.0,
        "R": 3.0,
        "H": 8.0,
        "BB": 1.0,
        "SO": 11.0,
        "HR": 1.0,
        "BF": 41.0,
        "Pitches": 157.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.1,
        "R": 0.3,
        "H": 0.8,
        "BB": 0.1,
        "SO": 1.1,
        "HR": 0.1,
        "BF": 4.1,
        "Pitches": 15.7
      },
      "rates": {
        "ERA": 0.9,
        "WHIP": 0.9,
        "ER_per_IP": 0.1,
        "H_per_IP": 0.8,
        "BB_per_IP": 0.1,
        "SO_per_IP": 1.1,
        "HR_per_IP": 0.1
      }
    },
    "season": {
      "games": 22,
      "totals": {
        "IP": 22.2,
        "ER": 9.0,
        "R": 11.0,
        "H": 20.0,
        "BB": 4.0,
        "SO": 23.0,
        "HR": 1.0,
        "BF": 91.0,
        "Pitches": 371.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4091,
        "R": 0.5,
        "H": 0.9091,
        "BB": 0.1818,
        "SO": 1.0455,
        "HR": 0.0455,
        "BF": 4.1364,
        "Pitches": 16.8636
      },
      "rates": {
        "ERA": 3.5735,
        "WHIP": 1.0588,
        "ER_per_IP": 0.39706,
        "H_per_IP": 0.88235,
        "BB_per_IP": 0.17647,
        "SO_per_IP": 1.01471,
        "HR_per_IP": 0.04412
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.318,
    "predicted_H": 0.889,
    "predicted_BB": 0.224,
    "predicted_SO": 1.052,
    "predicted_HR": 0.098,
    "predicted_ERA": 2.8601,
    "predicted_WHIP": 1.1131
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5723,
  "form_weight": 0.4277,
  "form_reliability": 0.4738,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.501,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4738,
    "prior_weight": 0.5262
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.318,
      "final": 0.136,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.889,
      "final": 0.3802,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 0.224,
      "final": 0.6681,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 1.052,
      "final": 0.4499,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.098,
      "final": 0.0419,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 2.8601,
      "final": 2.8601,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1131,
      "final": 1.1131,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherJosé Alvarado
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.1944
ESPN Rank560
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H1
Pre BB0
Pre SO0
Season ERA5.7600
Season WHIP1.6400
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "PHI",
    "games": 81,
    "wins": 41,
    "losses": 40,
    "win_pct": 0.5062,
    "runs_scored": 328.0,
    "runs_allowed": 354.0,
    "run_differential": -26.0,
    "run_differential_per_game": -0.321,
    "avg_runs_scored": 4.0494,
    "avg_runs_allowed": 4.3704,
    "offense_index": 0.8986,
    "defense_index": 1.0311,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.1,
      "avg_runs_allowed": 4.6,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": 0.0011
  },
  "opponent": {
    "team": "NYM",
    "games": 81,
    "wins": 34,
    "losses": 47,
    "win_pct": 0.4198,
    "runs_scored": 318.0,
    "runs_allowed": 337.0,
    "run_differential": -19.0,
    "run_differential_per_game": -0.2346,
    "avg_runs_scored": 3.9259,
    "avg_runs_allowed": 4.1605,
    "offense_index": 0.8712,
    "defense_index": 1.0831,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 5.0,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.0968
  },
  "edges": {
    "quality_edge": 0.0979,
    "offense_edge": -0.1014,
    "opponent_offense_edge": -0.1288,
    "defense_strength": 0.0311,
    "opponent_defense_weakness": -0.0831,
    "recent_win_pct_edge": 0.1
  },
  "player_factors": {
    "ip": 1.01,
    "run_prevention": 0.9714,
    "strikeout": 1.0132
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "621237",
    "profile": {
      "available": true,
      "pitcher_id": "621237",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 85.0,
        "k_percent": 27.5,
        "bb_percent": 7.5,
        "woba": 0.366,
        "xwoba": 0.302,
        "sweet_spot_percent": 35.6,
        "barrel_batted_rate": 4.2,
        "hard_hit_percent": 28.8,
        "avg_best_speed": 77.1795,
        "avg_hyper_speed": 93.3158,
        "whiff_percent": 30.2,
        "swing_percent": 48.4
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.1518,
        "command_and_miss": 0.6314,
        "regression_edge": 1.8286,
        "xwoba_edge": 0.3714,
        "barrel_edge": 0.6889,
        "hard_hit_edge": 1.3571,
        "whiff_edge": 0.6429,
        "bb_edge": 0.425,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "621237",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.1944,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9835,
      "strikeout_factor": 1.0244,
      "walk_factor": 0.9847,
      "homer_factor": 0.9458,
      "woba_minus_xwoba": 0.064,
      "regression_flag": "positive_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "621237",
        "espn_id": 36063,
        "player_name": "Jose Alvarado",
        "team": "PHI",
        "role": "pitcher",
        "espn_rank": 560,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 560,
          "gp_value": 31.0,
          "gp_rank": 46,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 5.76,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 1.0,
          "sv_rank": 86,
          "hld_value": 8.0,
          "hld_rank": 41,
          "ip_value": 25.0,
          "ip_rank": 323,
          "h_value": 32.0,
          "h_rank": 193,
          "er_value": 16.0,
          "er_rank": 197,
          "hr_value": 3.0,
          "hr_rank": 258,
          "bb_value": 9.0,
          "bb_rank": 332,
          "k_value": 33.0,
          "k_rank": 209,
          "k_per_9_value": 11.88,
          "k_per_9_rank": 17,
          "whip_value": 1.64,
          "whip_rank": null,
          "war_value": -0.21,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 1.0,
        "factor": 0.9926,
        "adjusted": 1
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9926,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9931,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9756,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.011,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.0,
    "ER": 7,
    "H": 10,
    "BB": 2,
    "SO": 10,
    "HR": 3,
    "ERA": 7.000000000000002,
    "WHIP": 1.3333333333333337,
    "K9": 10.000000000000002,
    "HR9": 3.0000000000000004,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "621237",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.965,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4982,
    "prior_weight": 0.5018
  },
  "role": "pitcher",
  "player_id": "621237",
  "report_date": "20260618_N",
  "season_year": 2026,
  "rows_used": 31,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.2,
        "ER": 4.0,
        "R": 4.0,
        "H": 5.0,
        "BB": 1.0,
        "SO": 7.0,
        "HR": 2.0,
        "BF": 21.0,
        "Pitches": 99.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.8,
        "R": 0.8,
        "H": 1.0,
        "BB": 0.2,
        "SO": 1.4,
        "HR": 0.4,
        "BF": 4.2,
        "Pitches": 19.8
      },
      "rates": {
        "ERA": 7.7143,
        "WHIP": 1.2857,
        "ER_per_IP": 0.85714,
        "H_per_IP": 1.07143,
        "BB_per_IP": 0.21429,
        "SO_per_IP": 1.5,
        "HR_per_IP": 0.42857
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.0,
        "ER": 7.0,
        "R": 7.0,
        "H": 10.0,
        "BB": 2.0,
        "SO": 10.0,
        "HR": 3.0,
        "BF": 40.0,
        "Pitches": 180.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.7,
        "R": 0.7,
        "H": 1.0,
        "BB": 0.2,
        "SO": 1.0,
        "HR": 0.3,
        "BF": 4.0,
        "Pitches": 18.0
      },
      "rates": {
        "ERA": 7.0,
        "WHIP": 1.3333,
        "ER_per_IP": 0.77778,
        "H_per_IP": 1.11111,
        "BB_per_IP": 0.22222,
        "SO_per_IP": 1.11111,
        "HR_per_IP": 0.33333
      }
    },
    "season": {
      "games": 31,
      "totals": {
        "IP": 25.0,
        "ER": 16.0,
        "R": 17.0,
        "H": 32.0,
        "BB": 9.0,
        "SO": 33.0,
        "HR": 3.0,
        "BF": 120.0,
        "Pitches": 500.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 0.5161,
        "R": 0.5484,
        "H": 1.0323,
        "BB": 0.2903,
        "SO": 1.0645,
        "HR": 0.0968,
        "BF": 3.871,
        "Pitches": 16.129
      },
      "rates": {
        "ERA": 5.76,
        "WHIP": 1.64,
        "ER_per_IP": 0.64,
        "H_per_IP": 1.28,
        "BB_per_IP": 0.36,
        "SO_per_IP": 1.32,
        "HR_per_IP": 0.12
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.622,
    "predicted_H": 1.015,
    "predicted_BB": 0.295,
    "predicted_SO": 1.094,
    "predicted_HR": 0.231,
    "predicted_ERA": 5.7862,
    "predicted_WHIP": 1.3551
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.562,
  "form_weight": 0.438,
  "form_reliability": 0.4982,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.965,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4982,
    "prior_weight": 0.5018
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.622,
      "final": 0.2724,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 1.015,
      "final": 1.0066,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.295,
      "final": 0.1292,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 1.094,
      "final": 0.4792,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.231,
      "final": 0.1012,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 5.7862,
      "final": 5.7862,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.3551,
      "final": 1.3551,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherOrion Kerkering
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.4098
ESPN Rank84
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H0
Pre BB0
Pre SO1
Season ERA2.2771
Season WHIP1.1928
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "PHI",
    "games": 81,
    "wins": 41,
    "losses": 40,
    "win_pct": 0.5062,
    "runs_scored": 328.0,
    "runs_allowed": 354.0,
    "run_differential": -26.0,
    "run_differential_per_game": -0.321,
    "avg_runs_scored": 4.0494,
    "avg_runs_allowed": 4.3704,
    "offense_index": 0.8986,
    "defense_index": 1.0311,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.1,
      "avg_runs_allowed": 4.6,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": 0.0011
  },
  "opponent": {
    "team": "NYM",
    "games": 81,
    "wins": 34,
    "losses": 47,
    "win_pct": 0.4198,
    "runs_scored": 318.0,
    "runs_allowed": 337.0,
    "run_differential": -19.0,
    "run_differential_per_game": -0.2346,
    "avg_runs_scored": 3.9259,
    "avg_runs_allowed": 4.1605,
    "offense_index": 0.8712,
    "defense_index": 1.0831,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 5,
      "losses": 5,
      "win_pct": 0.5,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 5.0,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.0968
  },
  "edges": {
    "quality_edge": 0.0979,
    "offense_edge": -0.1014,
    "opponent_offense_edge": -0.1288,
    "defense_strength": 0.0311,
    "opponent_defense_weakness": -0.0831,
    "recent_win_pct_edge": 0.1
  },
  "player_factors": {
    "ip": 1.01,
    "run_prevention": 0.9714,
    "strikeout": 1.0132
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "689147",
    "profile": {
      "available": true,
      "pitcher_id": "689147",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 78.0,
        "k_percent": 26.1,
        "bb_percent": 10.9,
        "woba": 0.279,
        "xwoba": 0.252,
        "sweet_spot_percent": 26.0,
        "barrel_batted_rate": 5.5,
        "hard_hit_percent": 21.9,
        "avg_best_speed": 70.1017,
        "avg_hyper_speed": 91.7835,
        "whiff_percent": 25.8,
        "swing_percent": 43.0
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 1.4182,
        "command_and_miss": 0.1514,
        "regression_edge": 0.7714,
        "xwoba_edge": 1.8,
        "barrel_edge": 0.4,
        "hard_hit_edge": 2.3429,
        "whiff_edge": 0.0143,
        "bb_edge": -0.425,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "689147",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.4098,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9652,
      "strikeout_factor": 1.0095,
      "walk_factor": 1.0153,
      "homer_factor": 0.9191,
      "woba_minus_xwoba": 0.027,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "689147",
        "espn_id": 4630789,
        "player_name": "Orion Kerkering",
        "team": "PHI",
        "role": "pitcher",
        "espn_rank": 84,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 84,
          "gp_value": 30.0,
          "gp_rank": 64,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.2771,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 0.0,
          "l_rank": 430,
          "sv_value": 1.0,
          "sv_rank": 86,
          "hld_value": 5.0,
          "hld_rank": 87,
          "ip_value": 27.2,
          "ip_rank": 286,
          "h_value": 20.0,
          "h_rank": 330,
          "er_value": 7.0,
          "er_rank": 431,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 13.0,
          "bb_rank": 227,
          "k_value": 31.0,
          "k_rank": 239,
          "k_per_9_value": 10.084337,
          "k_per_9_rank": 22,
          "whip_value": 1.1927,
          "whip_rank": null,
          "war_value": 1.07,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9843,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9843,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0069,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9636,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0043,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.1,
    "ER": 2,
    "H": 6,
    "BB": 6,
    "SO": 17,
    "HR": 0,
    "ERA": 1.741935483870968,
    "WHIP": 1.1612903225806452,
    "K9": 14.806451612903228,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-17T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "689147",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.494,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5235,
    "prior_weight": 0.4765
  },
  "role": "pitcher",
  "player_id": "689147",
  "report_date": "20260618_N",
  "season_year": 2026,
  "rows_used": 30,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.1,
        "ER": 1.0,
        "R": 1.0,
        "H": 3.0,
        "BB": 4.0,
        "SO": 7.0,
        "HR": 0.0,
        "BF": 24.0,
        "Pitches": 110.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.6,
        "BB": 0.8,
        "SO": 1.4,
        "HR": 0.0,
        "BF": 4.8,
        "Pitches": 22.0
      },
      "rates": {
        "ERA": 1.6875,
        "WHIP": 1.3125,
        "ER_per_IP": 0.1875,
        "H_per_IP": 0.5625,
        "BB_per_IP": 0.75,
        "SO_per_IP": 1.3125,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.1,
        "ER": 2.0,
        "R": 2.0,
        "H": 6.0,
        "BB": 6.0,
        "SO": 17.0,
        "HR": 0.0,
        "BF": 44.0,
        "Pitches": 189.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.6,
        "BB": 0.6,
        "SO": 1.7,
        "HR": 0.0,
        "BF": 4.4,
        "Pitches": 18.9
      },
      "rates": {
        "ERA": 1.7419,
        "WHIP": 1.1613,
        "ER_per_IP": 0.19355,
        "H_per_IP": 0.58065,
        "BB_per_IP": 0.58065,
        "SO_per_IP": 1.64516,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 30,
      "totals": {
        "IP": 27.2,
        "ER": 7.0,
        "R": 8.0,
        "H": 20.0,
        "BB": 13.0,
        "SO": 31.0,
        "HR": 2.0,
        "BF": 119.0,
        "Pitches": 495.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2333,
        "R": 0.2667,
        "H": 0.6667,
        "BB": 0.4333,
        "SO": 1.0333,
        "HR": 0.0667,
        "BF": 3.9667,
        "Pitches": 16.5
      },
      "rates": {
        "ERA": 2.2771,
        "WHIP": 1.1928,
        "ER_per_IP": 0.25301,
        "H_per_IP": 0.72289,
        "BB_per_IP": 0.46988,
        "SO_per_IP": 1.12048,
        "HR_per_IP": 0.07229
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.345,
    "predicted_H": 0.779,
    "predicted_BB": 0.505,
    "predicted_SO": 1.175,
    "predicted_HR": 0.077,
    "predicted_ERA": 3.1033,
    "predicted_WHIP": 1.284
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5513,
  "form_weight": 0.4487,
  "form_reliability": 0.5235,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.494,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5235,
    "prior_weight": 0.4765
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.345,
      "final": 0.1548,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.779,
      "final": 0.3495,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.505,
      "final": 0.2266,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 1.175,
      "final": 1.0785,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.077,
      "final": 0.0345,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.1033,
      "final": 3.1033,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.284,
      "final": 1.284,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Alec Bohm (664761) · BATTER · 3B · Team PHI
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 227
All-history rows before 20260618: 227
System season_avg: 0.2270
Data season_avg (2026 season-to-date): 0.2207
Diff (system - data): 0.0063
System opponent_avg: 0.2670

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1300.0000.000Hitting_2B0.1500.000-0.1500.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.8803.0004.000Hitting_AB3.7534.000-0.753-1.000
predicted_AVG0.2370.0000.250Hitting_AVG0.2210.500-0.221-0.500
predicted_BB0.2611.0000.000Hitting_BB0.2860.0000.7141.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.9200.0001.000Hitting_H0.8282.000-0.828-2.000
predicted_HR0.1500.0000.000Hitting_HR0.0930.000-0.0930.000
predicted_OBP0.2930.2500.250Hitting_OBP0.2780.500-0.028-0.250
predicted_R0.3190.0000.000Hitting_R0.3220.000-0.3220.000
predicted_RBI0.6100.0001.000Hitting_RBI0.5071.000-0.507-1.000
predicted_SLG0.3980.0000.250Hitting_SLG0.3350.500-0.335-0.500
predicted_SO0.5800.0001.000Hitting_SO0.5591.000-0.559-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics1
Deboosted Metrics9
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_BB: 0.2610 -> 1.0000 (boost 0.7390, better)
Biggest Deboostpredicted_H: 0.9200 -> 0.0000 (deboost -0.9200, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend00000--Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_SLG: 0.4026 -> 0.3916 (deboost -0.0110, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling74334predicted_SO: 0.6022 -> 1.0000 (boost 0.3978, worse)predicted_BB: 0.2388 -> 0.0000 (deboost -0.2388, worse)AB rounded to 4 (raw=3.88), rates preserved: AVG=0.236 HR/AB=0.041
5bvp_blend00000--Sample-size BvP blend (BvP AB=15.0, weight=0.133, BvP AVG=0.267)
6consistency_constraints10101-predicted_R: 0.3410 -> 0.0000 (deboost -0.3410, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context31212predicted_AVG: 0.2375 -> 0.2500 (boost 0.0125, better)predicted_SLG: 0.3916 -> 0.2500 (deboost -0.1416, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference51423predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final32121predicted_SLG: 0.2500 -> 0.3916 (boost 0.1416, better)predicted_AVG: 0.2500 -> 0.2375 (deboost -0.0125, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "664761",
  "player_name": "Alec Bohm",
  "position": "3B",
  "team": "PHI",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.13,
        "predicted_3B": 0.0,
        "predicted_AB": 3.88,
        "predicted_AVG": 0.237,
        "predicted_BB": 0.261,
        "predicted_H": 0.92,
        "predicted_HR": 0.15,
        "predicted_OBP": 0.293,
        "predicted_R": 0.319,
        "predicted_RBI": 0.61,
        "predicted_SLG": 0.398,
        "predicted_SO": 0.58
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1207,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.848,
        "predicted_AVG": 0.2398,
        "predicted_BB": 0.2391,
        "predicted_H": 0.923,
        "predicted_HBP": 0.02,
        "predicted_HR": 0.1597,
        "predicted_OBP": 0.2896,
        "predicted_R": 0.3456,
        "predicted_RBI": 0.6425,
        "predicted_SLG": 0.4026,
        "predicted_SO": 0.6015
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.13,
          "after": 0.1207,
          "delta": -0.0093,
          "percent_delta": -0.0715,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.88,
          "after": 3.848,
          "delta": -0.032,
          "percent_delta": -0.0082,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.237,
          "after": 0.2398,
          "delta": 0.0028,
          "percent_delta": 0.0118,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.261,
          "after": 0.2391,
          "delta": -0.0219,
          "percent_delta": -0.0839,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.92,
          "after": 0.923,
          "delta": 0.003,
          "percent_delta": 0.0033,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.15,
          "after": 0.1597,
          "delta": 0.0097,
          "percent_delta": 0.0647,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.293,
          "after": 0.2896,
          "delta": -0.0034,
          "percent_delta": -0.0116,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.319,
          "after": 0.3456,
          "delta": 0.0266,
          "percent_delta": 0.0834,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.61,
          "after": 0.6425,
          "delta": 0.0325,
          "percent_delta": 0.0533,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.398,
          "after": 0.4026,
          "delta": 0.0046,
          "percent_delta": 0.0116,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.58,
          "after": 0.6015,
          "delta": 0.0215,
          "percent_delta": 0.0371,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 69
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1207,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.848,
        "predicted_AVG": 0.2375,
        "predicted_BB": 0.2388,
        "predicted_H": 0.9139,
        "predicted_HBP": 0.02,
        "predicted_HR": 0.1572,
        "predicted_OBP": 0.2821,
        "predicted_R": 0.341,
        "predicted_RBI": 0.6339,
        "predicted_SLG": 0.3916,
        "predicted_SO": 0.6022
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1207,
          "after": 0.1207,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.848,
          "after": 3.848,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2398,
          "after": 0.2375,
          "delta": -0.0023,
          "percent_delta": -0.0096,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2391,
          "after": 0.2388,
          "delta": -0.0003,
          "percent_delta": -0.0013,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.923,
          "after": 0.9139,
          "delta": -0.0091,
          "percent_delta": -0.0099,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.02,
          "after": 0.02,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1597,
          "after": 0.1572,
          "delta": -0.0025,
          "percent_delta": -0.0157,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2896,
          "after": 0.2821,
          "delta": -0.0075,
          "percent_delta": -0.0259,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3456,
          "after": 0.341,
          "delta": -0.0046,
          "percent_delta": -0.0133,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6425,
          "after": 0.6339,
          "delta": -0.0086,
          "percent_delta": -0.0134,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4026,
          "after": 0.3916,
          "delta": -0.011,
          "percent_delta": -0.0273,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6015,
          "after": 0.6022,
          "delta": 0.0007,
          "percent_delta": 0.0012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4026,
          "after": 0.3916,
          "delta": -0.011,
          "percent_delta": -0.0273,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.88), rates preserved: AVG=0.236 HR/AB=0.041",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1207,
          "after": 0.0,
          "delta": -0.1207,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.848,
          "after": 4.0,
          "delta": 0.152,
          "percent_delta": 0.0395,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2388,
          "after": 0.0,
          "delta": -0.2388,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9139,
          "after": 1.0,
          "delta": 0.0861,
          "percent_delta": 0.0942,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.02,
          "after": 0.0,
          "delta": -0.02,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1572,
          "after": 0.0,
          "delta": -0.1572,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6339,
          "after": 1.0,
          "delta": 0.3661,
          "percent_delta": 0.5775,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6022,
          "after": 1.0,
          "delta": 0.3978,
          "percent_delta": 0.6606,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 4,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.6022,
          "after": 1.0,
          "delta": 0.3978,
          "percent_delta": 0.6606,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.2388,
          "after": 0.0,
          "delta": -0.2388,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=15.0, weight=0.133, BvP AVG=0.267)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.8667,
        "bvp": 0.1333
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.341,
          "after": 0.0,
          "delta": -0.341,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.341,
          "after": 0.0,
          "delta": -0.341,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2375,
          "after": 0.25,
          "delta": 0.0125,
          "percent_delta": 0.0526,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2821,
          "after": 0.25,
          "delta": -0.0321,
          "percent_delta": -0.1138,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3916,
          "after": 0.25,
          "delta": -0.1416,
          "percent_delta": -0.3616,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2375,
          "after": 0.25,
          "delta": 0.0125,
          "percent_delta": 0.0526,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3916,
          "after": 0.25,
          "delta": -0.1416,
          "percent_delta": -0.3616,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 1,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2375,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2821,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3916,
        "predicted_SO": 0.0,
        "predicted_TB": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2375,
          "delta": -0.0125,
          "percent_delta": -0.05,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2821,
          "delta": 0.0321,
          "percent_delta": 0.1282,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3916,
          "delta": 0.1416,
          "percent_delta": 0.5665,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3916,
          "delta": 0.1416,
          "percent_delta": 0.5665,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2375,
          "delta": -0.0125,
          "percent_delta": -0.05,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.13,
        "after": 0.0,
        "delta": -0.13,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.88,
        "after": 3.0,
        "delta": -0.88,
        "percent_delta": -0.2268,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.237,
        "after": 0.2375,
        "delta": 0.0005,
        "percent_delta": 0.0021,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.261,
        "after": 1.0,
        "delta": 0.739,
        "percent_delta": 2.8314,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.92,
        "after": 0.0,
        "delta": -0.92,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.15,
        "after": 0.0,
        "delta": -0.15,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.293,
        "after": 0.2821,
        "delta": -0.0109,
        "percent_delta": -0.0372,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.319,
        "after": 0.0,
        "delta": -0.319,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.61,
        "after": 0.0,
        "delta": -0.61,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.398,
        "after": 0.3916,
        "delta": -0.0064,
        "percent_delta": -0.0161,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.58,
        "after": 0.0,
        "delta": -0.58,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 1,
      "deboosted_metrics": 9,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.261,
        "after": 1.0,
        "delta": 0.739,
        "percent_delta": 2.8314,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.92,
        "after": 0.0,
        "delta": -0.92,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.130-
predicted_3B0.000-
predicted_AB3.880-
predicted_AVG0.237-
predicted_BB0.261-
predicted_H0.920-
predicted_HR0.150-
predicted_OBP0.293-
predicted_R0.319-
predicted_RBI0.610-
predicted_SLG0.398-
predicted_SO0.580-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.121-0.009
predicted_3B0.0000.000
predicted_AB3.848-0.032
predicted_AVG0.2400.003
predicted_BB0.239-0.022
predicted_H0.9230.003
predicted_HBP0.020-
predicted_HR0.1600.010
predicted_OBP0.290-0.003
predicted_R0.3460.027
predicted_RBI0.6420.032
predicted_SLG0.4030.005
predicted_SO0.6020.022
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1210.000
predicted_3B0.0000.000
predicted_AB3.8480.000
predicted_AVG0.237-0.002
predicted_BB0.239-0.000
predicted_H0.914-0.009
predicted_HBP0.0200.000
predicted_HR0.157-0.003
predicted_OBP0.282-0.008
predicted_R0.341-0.005
predicted_RBI0.634-0.009
predicted_SLG0.392-0.011
predicted_SO0.6020.001
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.88), rates preserved: AVG=0.236 HR/AB=0.041

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=15.0, weight=0.133, BvP AVG=0.267)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI1.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.121
predicted_3B0.000-0.000
predicted_AB4.0000.152
predicted_AVG0.2500.013
predicted_BB0.000-0.239
predicted_H1.0000.086
predicted_HR0.000-0.157
predicted_OBP0.250-0.032
predicted_R0.000-0.341
predicted_RBI1.0000.366
predicted_SLG0.250-0.142
predicted_SO1.0000.398
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 69
Reference playing time: 3.880
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.0005.0000.0000.0001.0004.0002.0000.0003.0000.25000.25000.40000.25000.05000.20000.00000.1500
last_100.2010-39.00011.0001.0000.0003.00011.0005.0002.0007.0000.28210.31710.53850.28210.07690.28210.05130.1795
season0.6069-255.00058.0009.0000.0009.00038.00022.00018.00040.0000.22750.28060.36860.22750.03530.14900.07060.1569
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1080
predicted_3B0.0010
predicted_AB3.8040
predicted_AVG0.2437
predicted_BB0.2090
predicted_H0.9270
predicted_HBP0.0200
predicted_HR0.1730
predicted_OBP0.2849
predicted_R0.3820
predicted_RBI0.6870
predicted_SLG0.4089
predicted_SO0.6310
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.13000.10800.1207model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB3.88003.80403.8480model_form_blend
predicted_AVG0.23700.24370.2398model_form_blend
predicted_BB0.26100.20900.2391model_form_blend
predicted_H0.92000.92700.9230model_form_blend
predicted_HBP-0.02000.0200form_only
predicted_HR0.15000.17300.1597model_form_blend
predicted_OBP0.29300.28490.2896model_form_blend
predicted_R0.31900.38200.3456model_form_blend
predicted_RBI0.61000.68700.6425model_form_blend
predicted_SLG0.39800.40890.4026model_form_blend
predicted_SO0.58000.63100.6015model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date227
Season rows before report date227
Report year2026
Profile rows used69
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO0
SF0
HBP0
season_avg0.227

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E1
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.5
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB2
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260617_MIA@PHI
game_typefull
mlbID664761
playerID664761
playerNameAlec Bohm
pos3B
startedTrue
startingPosition3B
teamPHI
teamID21
game_date2026-06-17
sl_k_percent14.3
sl_bb_percent6.5
sl_woba0.286
sl_xwoba0.298
sl_xba0.248
sl_xslg0.367
sl_sweet_spot_percent35.6
sl_barrel_batted_rate4.6
sl_hard_hit_percent40.6
sl_exit_velocity_avg89.7
sl_launch_angle_avg10.3
sl_whiff_percent16.9
sl_swing_percent44.1
Bryce Harper (547180) · BATTER · 1B · Team PHI
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 249
All-history rows before 20260618: 249
System season_avg: 0.2510
Data season_avg (2026 season-to-date): 0.2715
Diff (system - data): -0.0205
System opponent_avg: 0.3680
System season_avg diverges from 2026 season-to-date by -0.0205. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1670.0000.000Hitting_2B0.1850.000-0.1850.000
predicted_3B0.0140.0000.000Hitting_3B0.0160.000-0.0160.000
predicted_AB3.7504.0004.000Hitting_AB3.5943.0000.4061.000
predicted_AVG0.2290.5000.250Hitting_AVG0.2720.3330.2280.167
predicted_BB0.6530.0001.000Hitting_BB0.6671.000-0.667-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0360.000-0.0360.000
predicted_H0.8602.0001.000Hitting_H0.9761.0001.0241.000
predicted_HR0.1601.0000.000Hitting_HR0.2370.0000.7631.000
predicted_OBP0.3260.5000.400Hitting_OBP0.3810.5000.1190.000
predicted_R0.6671.0001.000Hitting_R0.6511.0000.3490.000
predicted_RBI0.5301.0001.000Hitting_RBI0.6180.0000.3821.000
predicted_SLG0.4071.2500.250Hitting_SLG0.5300.3330.7200.917
predicted_SO0.8060.0001.000Hitting_SO0.7672.000-0.767-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics11
Boosted Metrics6
Deboosted Metrics5
Better Metrics7
Worse Metrics4
Biggest Boostpredicted_H: 0.8600 -> 2.0000 (boost 1.1400, better)
Biggest Deboostpredicted_SO: 0.8060 -> 0.0000 (deboost -0.8060, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend40404-predicted_AB: 3.7500 -> 3.6085 (deboost -0.1415, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot11010predicted_OBP: 0.3282 -> 0.3405 (boost 0.0123, better)-Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling75243predicted_RBI: 0.5074 -> 1.0000 (boost 0.4926, better)predicted_2B: 0.1568 -> 0.0000 (deboost -0.1568, worse)AB rounded to 4 (raw=3.75), rates preserved: AVG=0.209 HR/AB=0.040
5bvp_blend00000--Sample-size BvP blend (BvP AB=19.0, weight=0.155, BvP AVG=0.368)
6consistency_constraints11010predicted_R: 0.6747 -> 1.0000 (boost 0.3253, better)-Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context32121predicted_OBP: 0.3405 -> 0.4000 (boost 0.0595, better)predicted_SLG: 0.3919 -> 0.2500 (deboost -0.1419, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference42231predicted_H: 1.0000 -> 2.0000 (boost 1.0000, better)predicted_BB: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final31212predicted_SLG: 0.2500 -> 0.3919 (boost 0.1419, better)predicted_OBP: 0.4000 -> 0.3405 (deboost -0.0595, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "547180",
  "player_name": "Bryce Harper",
  "position": "1B",
  "team": "PHI",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.167,
        "predicted_3B": 0.014,
        "predicted_AB": 3.75,
        "predicted_AVG": 0.229,
        "predicted_BB": 0.653,
        "predicted_H": 0.86,
        "predicted_HR": 0.16,
        "predicted_OBP": 0.326,
        "predicted_R": 0.667,
        "predicted_RBI": 0.53,
        "predicted_SLG": 0.407,
        "predicted_SO": 0.806
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1568,
        "predicted_3B": 0.0119,
        "predicted_AB": 3.6085,
        "predicted_AVG": 0.2189,
        "predicted_BB": 0.6742,
        "predicted_H": 0.7926,
        "predicted_HBP": 0.003,
        "predicted_HR": 0.152,
        "predicted_OBP": 0.3282,
        "predicted_R": 0.6839,
        "predicted_RBI": 0.5143,
        "predicted_SLG": 0.394,
        "predicted_SO": 0.8242
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.167,
          "after": 0.1568,
          "delta": -0.0102,
          "percent_delta": -0.0611,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.014,
          "after": 0.0119,
          "delta": -0.0021,
          "percent_delta": -0.15,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.75,
          "after": 3.6085,
          "delta": -0.1415,
          "percent_delta": -0.0377,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.229,
          "after": 0.2189,
          "delta": -0.0101,
          "percent_delta": -0.0441,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.653,
          "after": 0.6742,
          "delta": 0.0212,
          "percent_delta": 0.0325,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.86,
          "after": 0.7926,
          "delta": -0.0674,
          "percent_delta": -0.0784,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.16,
          "after": 0.152,
          "delta": -0.008,
          "percent_delta": -0.05,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.326,
          "after": 0.3282,
          "delta": 0.0022,
          "percent_delta": 0.0067,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.667,
          "after": 0.6839,
          "delta": 0.0169,
          "percent_delta": 0.0253,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.53,
          "after": 0.5143,
          "delta": -0.0157,
          "percent_delta": -0.0296,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.407,
          "after": 0.394,
          "delta": -0.013,
          "percent_delta": -0.0319,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.806,
          "after": 0.8242,
          "delta": 0.0182,
          "percent_delta": 0.0226,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 0,
        "deboosted_metrics": 4,
        "better_metrics": 0,
        "worse_metrics": 4,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.75,
          "after": 3.6085,
          "delta": -0.1415,
          "percent_delta": -0.0377,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 72
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1568,
        "predicted_3B": 0.0119,
        "predicted_AB": 3.6085,
        "predicted_AVG": 0.2175,
        "predicted_BB": 0.6735,
        "predicted_H": 0.7848,
        "predicted_HBP": 0.003,
        "predicted_HR": 0.1496,
        "predicted_OBP": 0.3405,
        "predicted_R": 0.6747,
        "predicted_RBI": 0.5074,
        "predicted_SLG": 0.3919,
        "predicted_SO": 0.8251
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1568,
          "after": 0.1568,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0119,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6085,
          "after": 3.6085,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2189,
          "after": 0.2175,
          "delta": -0.0014,
          "percent_delta": -0.0064,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.6742,
          "after": 0.6735,
          "delta": -0.0007,
          "percent_delta": -0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7926,
          "after": 0.7848,
          "delta": -0.0078,
          "percent_delta": -0.0098,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.003,
          "after": 0.003,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.152,
          "after": 0.1496,
          "delta": -0.0024,
          "percent_delta": -0.0158,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3282,
          "after": 0.3405,
          "delta": 0.0123,
          "percent_delta": 0.0375,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.6839,
          "after": 0.6747,
          "delta": -0.0092,
          "percent_delta": -0.0135,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5143,
          "after": 0.5074,
          "delta": -0.0069,
          "percent_delta": -0.0134,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.394,
          "after": 0.3919,
          "delta": -0.0021,
          "percent_delta": -0.0053,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.8242,
          "after": 0.8251,
          "delta": 0.0009,
          "percent_delta": 0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3282,
          "after": 0.3405,
          "delta": 0.0123,
          "percent_delta": 0.0375,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.75), rates preserved: AVG=0.209 HR/AB=0.040",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1568,
          "after": 0.0,
          "delta": -0.1568,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0,
          "delta": -0.0119,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6085,
          "after": 4.0,
          "delta": 0.3915,
          "percent_delta": 0.1085,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.6735,
          "after": 1.0,
          "delta": 0.3265,
          "percent_delta": 0.4848,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7848,
          "after": 1.0,
          "delta": 0.2152,
          "percent_delta": 0.2742,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.003,
          "after": 0.0,
          "delta": -0.003,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1496,
          "after": 0.0,
          "delta": -0.1496,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5074,
          "after": 1.0,
          "delta": 0.4926,
          "percent_delta": 0.9708,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8251,
          "after": 1.0,
          "delta": 0.1749,
          "percent_delta": 0.212,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 5,
        "deboosted_metrics": 2,
        "better_metrics": 4,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.5074,
          "after": 1.0,
          "delta": 0.4926,
          "percent_delta": 0.9708,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_2B",
          "before": 0.1568,
          "after": 0.0,
          "delta": -0.1568,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=19.0, weight=0.155, BvP AVG=0.368)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.8449,
        "bvp": 0.1551
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.6747,
          "after": 1.0,
          "delta": 0.3253,
          "percent_delta": 0.4821,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.6747,
          "after": 1.0,
          "delta": 0.3253,
          "percent_delta": 0.4821,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.4,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2175,
          "after": 0.25,
          "delta": 0.0325,
          "percent_delta": 0.1494,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3405,
          "after": 0.4,
          "delta": 0.0595,
          "percent_delta": 0.1747,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3919,
          "after": 0.25,
          "delta": -0.1419,
          "percent_delta": -0.3621,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3405,
          "after": 0.4,
          "delta": 0.0595,
          "percent_delta": 0.1747,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3919,
          "after": 0.25,
          "delta": -0.1419,
          "percent_delta": -0.3621,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 2,
        "deboosted_metrics": 2,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2175,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_FB": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_OBP": 0.3405,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3919,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2175,
          "delta": -0.0325,
          "percent_delta": -0.1301,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3405,
          "delta": -0.0595,
          "percent_delta": -0.1486,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3919,
          "delta": 0.1419,
          "percent_delta": 0.5677,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3919,
          "delta": 0.1419,
          "percent_delta": 0.5677,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3405,
          "delta": -0.0595,
          "percent_delta": -0.1486,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.167,
        "after": 0.0,
        "delta": -0.167,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.014,
        "after": 0.0,
        "delta": -0.014,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.75,
        "after": 4.0,
        "delta": 0.25,
        "percent_delta": 0.0667,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.229,
        "after": 0.2175,
        "delta": -0.0115,
        "percent_delta": -0.0502,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.653,
        "after": 0.0,
        "delta": -0.653,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.86,
        "after": 2.0,
        "delta": 1.14,
        "percent_delta": 1.3256,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.16,
        "after": 1.0,
        "delta": 0.84,
        "percent_delta": 5.25,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.326,
        "after": 0.3405,
        "delta": 0.0145,
        "percent_delta": 0.0445,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.667,
        "after": 1.0,
        "delta": 0.333,
        "percent_delta": 0.4993,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.53,
        "after": 1.0,
        "delta": 0.47,
        "percent_delta": 0.8868,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.407,
        "after": 0.3919,
        "delta": -0.0151,
        "percent_delta": -0.0371,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.806,
        "after": 0.0,
        "delta": -0.806,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 6,
      "deboosted_metrics": 5,
      "better_metrics": 7,
      "worse_metrics": 4,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 0.86,
        "after": 2.0,
        "delta": 1.14,
        "percent_delta": 1.3256,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.806,
        "after": 0.0,
        "delta": -0.806,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.167-
predicted_3B0.014-
predicted_AB3.750-
predicted_AVG0.229-
predicted_BB0.653-
predicted_H0.860-
predicted_HR0.160-
predicted_OBP0.326-
predicted_R0.667-
predicted_RBI0.530-
predicted_SLG0.407-
predicted_SO0.806-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.157-0.010
predicted_3B0.012-0.002
predicted_AB3.608-0.142
predicted_AVG0.219-0.010
predicted_BB0.6740.021
predicted_H0.793-0.067
predicted_HBP0.003-
predicted_HR0.152-0.008
predicted_OBP0.3280.002
predicted_R0.6840.017
predicted_RBI0.514-0.016
predicted_SLG0.394-0.013
predicted_SO0.8240.018
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1570.000
predicted_3B0.0120.000
predicted_AB3.6080.000
predicted_AVG0.217-0.001
predicted_BB0.673-0.001
predicted_H0.785-0.008
predicted_HBP0.0030.000
predicted_HR0.150-0.002
predicted_OBP0.3410.012
predicted_R0.675-0.009
predicted_RBI0.507-0.007
predicted_SLG0.392-0.002
predicted_SO0.8250.001
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.75), rates preserved: AVG=0.209 HR/AB=0.040

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=19.0, weight=0.155, BvP AVG=0.368)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
H1.0000.000
HR0.0000.000
RBI1.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.157
predicted_3B0.000-0.012
predicted_AB4.0000.392
predicted_AVG0.2500.033
predicted_BB1.0000.327
predicted_H1.0000.215
predicted_HR0.000-0.150
predicted_OBP0.4000.059
predicted_R1.0000.325
predicted_RBI1.0000.493
predicted_SLG0.250-0.142
predicted_SO1.0000.175
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.000-1.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR1.0001.000
PA4.000-
R1.0000.000
RBI1.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 72
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-16.0001.0000.0000.0000.0002.0003.0004.0005.0000.06250.22730.06250.06250.00000.12500.25000.3125
last_100.2010-32.0006.0002.0000.0001.0004.00010.0009.0008.0000.18750.34880.34380.18750.03120.12500.28120.2500
season0.6072-251.00063.00012.0001.00015.00040.00048.00047.00058.0000.25100.36300.48610.25100.05980.15940.18720.2311
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1430
predicted_3B0.0090
predicted_AB3.4160
predicted_AVG0.2051
predicted_BB0.7030
predicted_H0.7010
predicted_HBP0.0030
predicted_HR0.1410
predicted_OBP0.3313
predicted_R0.7070
predicted_RBI0.4930
predicted_SLG0.3762
predicted_SO0.8490
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.16700.14300.1568model_form_blend
predicted_3B0.01400.00900.0119model_form_blend
predicted_AB3.75003.41603.6085model_form_blend
predicted_AVG0.22900.20510.2189model_form_blend
predicted_BB0.65300.70300.6742model_form_blend
predicted_H0.86000.70100.7926model_form_blend
predicted_HBP-0.00300.0030form_only
predicted_HR0.16000.14100.1520model_form_blend
predicted_OBP0.32600.33130.3282model_form_blend
predicted_R0.66700.70700.6839model_form_blend
predicted_RBI0.53000.49300.5143model_form_blend
predicted_SLG0.40700.37620.3940model_form_blend
predicted_SO0.80600.84900.8242model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date249
Season rows before report date249
Report year2026
Profile rows used72
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H2
2B0
3B0
HR1
R1
RBI1
BB0
SO0
SF0
HBP0
season_avg0.251

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB1
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB1
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B
gameID20260617_MIA@PHI
game_typefull
mlbID547180
playerID547180
playerNameBryce Harper
pos1B
startedTrue
startingPosition1B
teamPHI
teamID21
game_date2026-06-17
sl_k_percent18.9
sl_bb_percent15.3
sl_woba0.365
sl_xwoba0.405
sl_xba0.284
sl_xslg0.544
sl_sweet_spot_percent37.6
sl_barrel_batted_rate12.9
sl_hard_hit_percent44.6
sl_exit_velocity_avg90.0
sl_launch_angle_avg12.1
sl_whiff_percent30.1
sl_swing_percent50.3
Kyle Schwarber (656941) · BATTER · DH · Team PHI
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 257
All-history rows before 20260618: 257
System season_avg: 0.2430
Data season_avg (2026 season-to-date): 0.2482
Diff (system - data): -0.0052
System opponent_avg: 0.1540

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1290.0000.000Hitting_2B0.1950.000-0.1950.000
predicted_3B0.0140.0000.000Hitting_3B0.0190.000-0.0190.000
predicted_AB4.1704.0004.000Hitting_AB3.8874.0000.1130.000
predicted_AVG0.2400.0000.250Hitting_AVG0.2480.000-0.2480.000
predicted_BB0.6290.0001.000Hitting_BB0.6150.000-0.6150.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H1.0000.0001.000Hitting_H0.9650.000-0.9650.000
predicted_HR0.2600.0000.000Hitting_HR0.3930.000-0.3930.000
predicted_OBP0.3580.0000.400Hitting_OBP0.3620.000-0.3620.000
predicted_R0.6140.0001.000Hitting_R0.6850.000-0.6850.000
predicted_RBI0.5000.0000.000Hitting_RBI0.7350.000-0.7350.000
predicted_SLG0.4730.0000.250Hitting_SLG0.6120.000-0.6120.000
predicted_SO1.5711.0001.000Hitting_SO1.5413.000-0.541-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics1
Deboosted Metrics9
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_AVG: 0.2400 -> 0.2463 (boost 0.0063, better)
Biggest Deboostpredicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend43131predicted_SLG: 0.4730 -> 0.4865 (boost 0.0135, better)predicted_AB: 4.1700 -> 4.0108 (deboost -0.1592, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3657 -> 0.3505 (deboost -0.0152, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling51423predicted_BB: 0.6432 -> 1.0000 (boost 0.3568, better)predicted_SO: 1.5515 -> 1.0000 (deboost -0.5515, better)AB rounded to 4 (raw=4.17), rates preserved: AVG=0.237 HR/AB=0.063
5bvp_blend00000--Sample-size BvP blend (BvP AB=13.0, weight=0.121, BvP AVG=0.154)
6consistency_constraints11010predicted_R: 0.5765 -> 1.0000 (boost 0.4235, better)-Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context21111predicted_OBP: 0.3505 -> 0.4000 (boost 0.0495, better)predicted_SLG: 0.4751 -> 0.2500 (deboost -0.2251, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference30303-predicted_BB: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final21111predicted_SLG: 0.2500 -> 0.4751 (boost 0.2251, better)predicted_OBP: 0.4000 -> 0.3505 (deboost -0.0495, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "656941",
  "player_name": "Kyle Schwarber",
  "position": "DH",
  "team": "PHI",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.129,
        "predicted_3B": 0.014,
        "predicted_AB": 4.17,
        "predicted_AVG": 0.24,
        "predicted_BB": 0.629,
        "predicted_H": 1.0,
        "predicted_HR": 0.26,
        "predicted_OBP": 0.358,
        "predicted_R": 0.614,
        "predicted_RBI": 0.5,
        "predicted_SLG": 0.473,
        "predicted_SO": 1.571
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1107,
        "predicted_3B": 0.0119,
        "predicted_AB": 4.0108,
        "predicted_AVG": 0.2494,
        "predicted_BB": 0.6439,
        "predicted_H": 0.9979,
        "predicted_HBP": 0.034,
        "predicted_HR": 0.2651,
        "predicted_OBP": 0.3657,
        "predicted_R": 0.5843,
        "predicted_RBI": 0.4843,
        "predicted_SLG": 0.4865,
        "predicted_SO": 1.5498
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.129,
          "after": 0.1107,
          "delta": -0.0183,
          "percent_delta": -0.1419,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.014,
          "after": 0.0119,
          "delta": -0.0021,
          "percent_delta": -0.15,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.17,
          "after": 4.0108,
          "delta": -0.1592,
          "percent_delta": -0.0382,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.24,
          "after": 0.2494,
          "delta": 0.0094,
          "percent_delta": 0.0392,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.629,
          "after": 0.6439,
          "delta": 0.0149,
          "percent_delta": 0.0237,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.9979,
          "delta": -0.0021,
          "percent_delta": -0.0021,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.26,
          "after": 0.2651,
          "delta": 0.0051,
          "percent_delta": 0.0196,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.358,
          "after": 0.3657,
          "delta": 0.0077,
          "percent_delta": 0.0215,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.614,
          "after": 0.5843,
          "delta": -0.0297,
          "percent_delta": -0.0484,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5,
          "after": 0.4843,
          "delta": -0.0157,
          "percent_delta": -0.0314,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.473,
          "after": 0.4865,
          "delta": 0.0135,
          "percent_delta": 0.0285,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.571,
          "after": 1.5498,
          "delta": -0.0212,
          "percent_delta": -0.0135,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.473,
          "after": 0.4865,
          "delta": 0.0135,
          "percent_delta": 0.0285,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.17,
          "after": 4.0108,
          "delta": -0.1592,
          "percent_delta": -0.0382,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 70
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1107,
        "predicted_3B": 0.0119,
        "predicted_AB": 4.0108,
        "predicted_AVG": 0.2463,
        "predicted_BB": 0.6432,
        "predicted_H": 0.988,
        "predicted_HBP": 0.034,
        "predicted_HR": 0.261,
        "predicted_OBP": 0.3505,
        "predicted_R": 0.5765,
        "predicted_RBI": 0.4778,
        "predicted_SLG": 0.4751,
        "predicted_SO": 1.5515
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1107,
          "after": 0.1107,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0119,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0108,
          "after": 4.0108,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2494,
          "after": 0.2463,
          "delta": -0.0031,
          "percent_delta": -0.0124,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.6439,
          "after": 0.6432,
          "delta": -0.0007,
          "percent_delta": -0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9979,
          "after": 0.988,
          "delta": -0.0099,
          "percent_delta": -0.0099,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.034,
          "after": 0.034,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2651,
          "after": 0.261,
          "delta": -0.0041,
          "percent_delta": -0.0155,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3657,
          "after": 0.3505,
          "delta": -0.0152,
          "percent_delta": -0.0416,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5843,
          "after": 0.5765,
          "delta": -0.0078,
          "percent_delta": -0.0133,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4843,
          "after": 0.4778,
          "delta": -0.0065,
          "percent_delta": -0.0134,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4865,
          "after": 0.4751,
          "delta": -0.0114,
          "percent_delta": -0.0234,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.5498,
          "after": 1.5515,
          "delta": 0.0017,
          "percent_delta": 0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3657,
          "after": 0.3505,
          "delta": -0.0152,
          "percent_delta": -0.0416,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.17), rates preserved: AVG=0.237 HR/AB=0.063",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1107,
          "after": 0.0,
          "delta": -0.1107,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0,
          "delta": -0.0119,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0108,
          "after": 4.0,
          "delta": -0.0108,
          "percent_delta": -0.0027,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.6432,
          "after": 1.0,
          "delta": 0.3568,
          "percent_delta": 0.5547,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.988,
          "after": 1.0,
          "delta": 0.012,
          "percent_delta": 0.0121,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.034,
          "after": 0.0,
          "delta": -0.034,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.261,
          "after": 0.0,
          "delta": -0.261,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4778,
          "after": 0.0,
          "delta": -0.4778,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.5515,
          "after": 1.0,
          "delta": -0.5515,
          "percent_delta": -0.3555,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 1,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.6432,
          "after": 1.0,
          "delta": 0.3568,
          "percent_delta": 0.5547,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.5515,
          "after": 1.0,
          "delta": -0.5515,
          "percent_delta": -0.3555,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=13.0, weight=0.121, BvP AVG=0.154)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.8791,
        "bvp": 0.1209
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5765,
          "after": 1.0,
          "delta": 0.4235,
          "percent_delta": 0.7346,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5765,
          "after": 1.0,
          "delta": 0.4235,
          "percent_delta": 0.7346,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.4,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2463,
          "after": 0.25,
          "delta": 0.0037,
          "percent_delta": 0.015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3505,
          "after": 0.4,
          "delta": 0.0495,
          "percent_delta": 0.1412,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4751,
          "after": 0.25,
          "delta": -0.2251,
          "percent_delta": -0.4738,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3505,
          "after": 0.4,
          "delta": 0.0495,
          "percent_delta": 0.1412,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4751,
          "after": 0.25,
          "delta": -0.2251,
          "percent_delta": -0.4738,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2463,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3505,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4751,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2463,
          "delta": -0.0037,
          "percent_delta": -0.0146,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3505,
          "delta": -0.0495,
          "percent_delta": -0.1238,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4751,
          "delta": 0.2251,
          "percent_delta": 0.9003,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4751,
          "delta": 0.2251,
          "percent_delta": 0.9003,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3505,
          "delta": -0.0495,
          "percent_delta": -0.1238,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.129,
        "after": 0.0,
        "delta": -0.129,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.014,
        "after": 0.0,
        "delta": -0.014,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.17,
        "after": 4.0,
        "delta": -0.17,
        "percent_delta": -0.0408,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.24,
        "after": 0.2463,
        "delta": 0.0063,
        "percent_delta": 0.0263,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.629,
        "after": 0.0,
        "delta": -0.629,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 0.0,
        "delta": -1.0,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.26,
        "after": 0.0,
        "delta": -0.26,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.358,
        "after": 0.3505,
        "delta": -0.0075,
        "percent_delta": -0.0209,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.614,
        "after": 0.0,
        "delta": -0.614,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.5,
        "after": 0.0,
        "delta": -0.5,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.473,
        "after": 0.4751,
        "delta": 0.0021,
        "percent_delta": 0.0044,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.571,
        "after": 1.0,
        "delta": -0.571,
        "percent_delta": -0.3635,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 1,
      "deboosted_metrics": 9,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_AVG",
        "before": 0.24,
        "after": 0.2463,
        "delta": 0.0063,
        "percent_delta": 0.0263,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 0.0,
        "delta": -1.0,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.129-
predicted_3B0.014-
predicted_AB4.170-
predicted_AVG0.240-
predicted_BB0.629-
predicted_H1.000-
predicted_HR0.260-
predicted_OBP0.358-
predicted_R0.614-
predicted_RBI0.500-
predicted_SLG0.473-
predicted_SO1.571-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.111-0.018
predicted_3B0.012-0.002
predicted_AB4.011-0.159
predicted_AVG0.2490.009
predicted_BB0.6440.015
predicted_H0.998-0.002
predicted_HBP0.034-
predicted_HR0.2650.005
predicted_OBP0.3660.008
predicted_R0.584-0.030
predicted_RBI0.484-0.016
predicted_SLG0.4860.014
predicted_SO1.550-0.021
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1110.000
predicted_3B0.0120.000
predicted_AB4.0110.000
predicted_AVG0.246-0.003
predicted_BB0.643-0.001
predicted_H0.988-0.010
predicted_HBP0.0340.000
predicted_HR0.261-0.004
predicted_OBP0.350-0.015
predicted_R0.577-0.008
predicted_RBI0.478-0.007
predicted_SLG0.475-0.011
predicted_SO1.5520.002
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.17), rates preserved: AVG=0.237 HR/AB=0.063

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=13.0, weight=0.121, BvP AVG=0.154)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.111
predicted_3B0.000-0.012
predicted_AB4.000-0.011
predicted_AVG0.2500.004
predicted_BB1.0000.357
predicted_H1.0000.012
predicted_HR0.000-0.261
predicted_OBP0.4000.050
predicted_R1.0000.423
predicted_RBI0.000-0.478
predicted_SLG0.250-0.225
predicted_SO1.000-0.552
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.000-1.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 70
Reference playing time: 4.170
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-19.0006.0000.0000.0001.0001.0002.0004.0008.0000.31580.43480.47370.31580.05260.05260.21050.4210
last_100.2010-37.00010.0000.0000.0002.0003.0005.0008.00016.0000.27030.40000.43240.27030.05410.08110.21620.4324
season0.6070-267.00065.0009.0001.00024.00042.00043.00044.000110.0000.24340.35870.55430.24340.08990.15730.16480.4120
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0860
predicted_3B0.0090
predicted_AB3.7950
predicted_AVG0.2621
predicted_BB0.6640
predicted_H0.9950
predicted_HBP0.0340
predicted_HR0.2720
predicted_OBP0.3762
predicted_R0.5440
predicted_RBI0.4630
predicted_SLG0.5047
predicted_SO1.5210
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.12900.08600.1107model_form_blend
predicted_3B0.01400.00900.0119model_form_blend
predicted_AB4.17003.79504.0108model_form_blend
predicted_AVG0.24000.26210.2494model_form_blend
predicted_BB0.62900.66400.6439model_form_blend
predicted_H1.00000.99500.9979model_form_blend
predicted_HBP-0.03400.0340form_only
predicted_HR0.26000.27200.2651model_form_blend
predicted_OBP0.35800.37620.3657model_form_blend
predicted_R0.61400.54400.5843model_form_blend
predicted_RBI0.50000.46300.4843model_form_blend
predicted_SLG0.47300.50470.4865model_form_blend
predicted_SO1.57101.52101.5498model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date257
Season rows before report date257
Report year2026
Profile rows used70
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.243

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO3
Hitting_TB0
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260617_MIA@PHI
game_typefull
mlbID656941
playerID656941
playerNameKyle Schwarber
posDH
startedTrue
startingPositionDH
teamPHI
teamID21
game_date2026-06-17
sl_k_percent34.5
sl_bb_percent14.4
sl_woba0.396
sl_xwoba0.377
sl_xba0.24
sl_xslg0.522
sl_sweet_spot_percent39.6
sl_barrel_batted_rate20.9
sl_hard_hit_percent50.9
sl_exit_velocity_avg93.0
sl_launch_angle_avg21.9
sl_whiff_percent34.4
sl_swing_percent43.9
Trea Turner (607208) · BATTER · SS · Team PHI
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 258
All-history rows before 20260618: 258
System season_avg: 0.2260
Data season_avg (2026 season-to-date): 0.2310
Diff (system - data): -0.0050
System opponent_avg: 0.3330

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1710.0000.000Hitting_2B0.1711.000-0.171-1.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.6704.0005.000Hitting_AB4.2795.000-0.279-1.000
predicted_AVG0.2190.2500.200Hitting_AVG0.2310.6000.019-0.350
predicted_BB0.2710.0000.000Hitting_BB0.2830.000-0.2830.000
predicted_CS-0.0000.000BaseRunning_CS0.0230.000-0.0230.000
predicted_H1.0201.0001.000Hitting_H0.9883.0000.012-2.000
predicted_HR0.1000.0000.000Hitting_HR0.1320.000-0.1320.000
predicted_OBP0.2810.2500.200Hitting_OBP0.2780.600-0.028-0.350
predicted_R0.6000.0001.000Hitting_R0.6711.000-0.671-1.000
predicted_RBI0.3100.0000.000Hitting_RBI0.3530.000-0.3530.000
predicted_SLG0.3440.2500.200Hitting_SLG0.3630.800-0.113-0.550
predicted_SO0.9861.0001.000Hitting_SO0.9921.0000.0080.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics8
Boosted Metrics0
Deboosted Metrics8
Better Metrics0
Worse Metrics8
Biggest Boost-
Biggest Deboostpredicted_AB: 4.6700 -> 4.0000 (deboost -0.6700, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend41304predicted_SO: 0.9860 -> 1.0365 (boost 0.0505, worse)predicted_AB: 4.6700 -> 4.4514 (deboost -0.2186, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.2755 -> 0.2577 (deboost -0.0178, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling61515predicted_AB: 4.4514 -> 5.0000 (boost 0.5486, better)predicted_RBI: 0.2644 -> 0.0000 (deboost -0.2644, worse)AB rounded to 5 (raw=4.67), rates preserved: AVG=0.207 HR/AB=0.018
5bvp_blend00000--Sample-size BvP blend (BvP AB=21.0, weight=0.165, BvP AVG=0.333)
6consistency_constraints11010predicted_R: 0.5429 -> 1.0000 (boost 0.4571, better)-Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context30303-predicted_SLG: 0.3153 -> 0.2000 (deboost -0.1153, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference20202-predicted_AB: 5.0000 -> 4.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final33030predicted_SLG: 0.2000 -> 0.3153 (boost 0.1153, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "607208",
  "player_name": "Trea Turner",
  "position": "SS",
  "team": "PHI",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.171,
        "predicted_3B": 0.0,
        "predicted_AB": 4.67,
        "predicted_AVG": 0.219,
        "predicted_BB": 0.271,
        "predicted_H": 1.02,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.281,
        "predicted_R": 0.6,
        "predicted_RBI": 0.31,
        "predicted_SLG": 0.344,
        "predicted_SO": 0.986
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1842,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.4514,
        "predicted_AVG": 0.2192,
        "predicted_BB": 0.246,
        "predicted_H": 0.9742,
        "predicted_HBP": 0.065,
        "predicted_HR": 0.086,
        "predicted_OBP": 0.2755,
        "predicted_R": 0.5503,
        "predicted_RBI": 0.268,
        "predicted_SLG": 0.3325,
        "predicted_SO": 1.0365
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.171,
          "after": 0.1842,
          "delta": 0.0132,
          "percent_delta": 0.0772,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.67,
          "after": 4.4514,
          "delta": -0.2186,
          "percent_delta": -0.0468,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.219,
          "after": 0.2192,
          "delta": 0.0002,
          "percent_delta": 0.0009,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.271,
          "after": 0.246,
          "delta": -0.025,
          "percent_delta": -0.0923,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.02,
          "after": 0.9742,
          "delta": -0.0458,
          "percent_delta": -0.0449,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.086,
          "delta": -0.014,
          "percent_delta": -0.14,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.281,
          "after": 0.2755,
          "delta": -0.0055,
          "percent_delta": -0.0196,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.6,
          "after": 0.5503,
          "delta": -0.0497,
          "percent_delta": -0.0828,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.31,
          "after": 0.268,
          "delta": -0.042,
          "percent_delta": -0.1355,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.344,
          "after": 0.3325,
          "delta": -0.0115,
          "percent_delta": -0.0334,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.986,
          "after": 1.0365,
          "delta": 0.0505,
          "percent_delta": 0.0512,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 1,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.986,
          "after": 1.0365,
          "delta": 0.0505,
          "percent_delta": 0.0512,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.67,
          "after": 4.4514,
          "delta": -0.2186,
          "percent_delta": -0.0468,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 70
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1842,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.4514,
        "predicted_AVG": 0.2167,
        "predicted_BB": 0.2457,
        "predicted_H": 0.9646,
        "predicted_HBP": 0.065,
        "predicted_HR": 0.0847,
        "predicted_OBP": 0.2577,
        "predicted_R": 0.5429,
        "predicted_RBI": 0.2644,
        "predicted_SLG": 0.3153,
        "predicted_SO": 1.0376
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1842,
          "after": 0.1842,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.4514,
          "after": 4.4514,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2192,
          "after": 0.2167,
          "delta": -0.0025,
          "percent_delta": -0.0114,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.246,
          "after": 0.2457,
          "delta": -0.0003,
          "percent_delta": -0.0012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9742,
          "after": 0.9646,
          "delta": -0.0096,
          "percent_delta": -0.0099,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.065,
          "after": 0.065,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.086,
          "after": 0.0847,
          "delta": -0.0013,
          "percent_delta": -0.0151,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2755,
          "after": 0.2577,
          "delta": -0.0178,
          "percent_delta": -0.0646,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5503,
          "after": 0.5429,
          "delta": -0.0074,
          "percent_delta": -0.0134,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.268,
          "after": 0.2644,
          "delta": -0.0036,
          "percent_delta": -0.0134,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3325,
          "after": 0.3153,
          "delta": -0.0172,
          "percent_delta": -0.0517,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0365,
          "after": 1.0376,
          "delta": 0.0011,
          "percent_delta": 0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.2755,
          "after": 0.2577,
          "delta": -0.0178,
          "percent_delta": -0.0646,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 5 (raw=4.67), rates preserved: AVG=0.207 HR/AB=0.018",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1842,
          "after": 0.0,
          "delta": -0.1842,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.4514,
          "after": 5.0,
          "delta": 0.5486,
          "percent_delta": 0.1232,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2457,
          "after": 0.0,
          "delta": -0.2457,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9646,
          "after": 1.0,
          "delta": 0.0354,
          "percent_delta": 0.0367,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.065,
          "after": 0.0,
          "delta": -0.065,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0847,
          "after": 0.0,
          "delta": -0.0847,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2644,
          "after": 0.0,
          "delta": -0.2644,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0376,
          "after": 1.0,
          "delta": -0.0376,
          "percent_delta": -0.0362,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 1,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 4.4514,
          "after": 5.0,
          "delta": 0.5486,
          "percent_delta": 0.1232,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.2644,
          "after": 0.0,
          "delta": -0.2644,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=21.0, weight=0.165, BvP AVG=0.333)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.8353,
        "bvp": 0.1647
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5429,
          "after": 1.0,
          "delta": 0.4571,
          "percent_delta": 0.842,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5429,
          "after": 1.0,
          "delta": 0.4571,
          "percent_delta": 0.842,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.2,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.2,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2167,
          "after": 0.2,
          "delta": -0.0167,
          "percent_delta": -0.0771,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2577,
          "after": 0.2,
          "delta": -0.0577,
          "percent_delta": -0.2239,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3153,
          "after": 0.2,
          "delta": -0.1153,
          "percent_delta": -0.3657,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3153,
          "after": 0.2,
          "delta": -0.1153,
          "percent_delta": -0.3657,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 4.0,
          "delta": -1.0,
          "percent_delta": -0.2,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 4.0,
          "delta": -1.0,
          "percent_delta": -0.2,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2167,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2577,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3153,
        "predicted_SO": 1.0,
        "predicted_SS": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2,
          "after": 0.2167,
          "delta": 0.0167,
          "percent_delta": 0.0834,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2,
          "after": 0.2577,
          "delta": 0.0577,
          "percent_delta": 0.2883,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2,
          "after": 0.3153,
          "delta": 0.1153,
          "percent_delta": 0.5765,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.2,
          "after": 0.3153,
          "delta": 0.1153,
          "percent_delta": 0.5765,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.171,
        "after": 0.0,
        "delta": -0.171,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.67,
        "after": 4.0,
        "delta": -0.67,
        "percent_delta": -0.1435,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.219,
        "after": 0.2167,
        "delta": -0.0023,
        "percent_delta": -0.0105,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.271,
        "after": 0.0,
        "delta": -0.271,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.02,
        "after": 1.0,
        "delta": -0.02,
        "percent_delta": -0.0196,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.281,
        "after": 0.2577,
        "delta": -0.0233,
        "percent_delta": -0.0829,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.6,
        "after": 0.0,
        "delta": -0.6,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.31,
        "after": 0.0,
        "delta": -0.31,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.344,
        "after": 0.3153,
        "delta": -0.0287,
        "percent_delta": -0.0834,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.986,
        "after": 1.0,
        "delta": 0.014,
        "percent_delta": 0.0142,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 8,
      "boosted_metrics": 0,
      "deboosted_metrics": 8,
      "better_metrics": 0,
      "worse_metrics": 8,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 4.67,
        "after": 4.0,
        "delta": -0.67,
        "percent_delta": -0.1435,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.171-
predicted_3B0.000-
predicted_AB4.670-
predicted_AVG0.219-
predicted_BB0.271-
predicted_H1.020-
predicted_HR0.100-
predicted_OBP0.281-
predicted_R0.600-
predicted_RBI0.310-
predicted_SLG0.344-
predicted_SO0.986-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1840.013
predicted_3B0.0000.000
predicted_AB4.451-0.219
predicted_AVG0.2190.000
predicted_BB0.246-0.025
predicted_H0.974-0.046
predicted_HBP0.065-
predicted_HR0.086-0.014
predicted_OBP0.276-0.006
predicted_R0.550-0.050
predicted_RBI0.268-0.042
predicted_SLG0.333-0.011
predicted_SO1.0360.050
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1840.000
predicted_3B0.0000.000
predicted_AB4.4510.000
predicted_AVG0.217-0.003
predicted_BB0.246-0.000
predicted_H0.965-0.010
predicted_HBP0.0650.000
predicted_HR0.085-0.001
predicted_OBP0.258-0.018
predicted_R0.543-0.007
predicted_RBI0.264-0.004
predicted_SLG0.315-0.017
predicted_SO1.0380.001
4. ab_floor_and_scaling

AB rounded to 5 (raw=4.67), rates preserved: AVG=0.207 HR/AB=0.018

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB5.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=21.0, weight=0.165, BvP AVG=0.333)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB5.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB5.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.184
predicted_3B0.000-0.000
predicted_AB5.0000.549
predicted_AVG0.200-0.017
predicted_BB0.000-0.246
predicted_H1.0000.035
predicted_HR0.000-0.085
predicted_OBP0.200-0.058
predicted_R1.0000.457
predicted_RBI0.000-0.264
predicted_SLG0.200-0.115
predicted_SO1.000-0.038
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.000-1.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 70
Reference playing time: 4.670
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-21.0004.0001.0000.0000.0000.0001.0000.0007.0000.19050.22730.23810.19050.00000.00000.00000.3333
last_100.2010-42.0009.0003.0000.0000.0000.0004.0002.00013.0000.21430.26670.28570.21430.00000.00000.04760.3095
season0.6070-292.00066.00012.0000.0007.00021.00042.00019.00069.0000.22600.27480.33900.22600.02400.07190.06510.2363
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2020
predicted_3B0.0010
predicted_AB4.1550
predicted_AVG0.2195
predicted_BB0.2120
predicted_H0.9120
predicted_HBP0.0650
predicted_HR0.0670
predicted_OBP0.2680
predicted_R0.4830
predicted_RBI0.2110
predicted_SLG0.3170
predicted_SO1.1050
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.17100.20200.1842model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.67004.15504.4514model_form_blend
predicted_AVG0.21900.21950.2192model_form_blend
predicted_BB0.27100.21200.2460model_form_blend
predicted_H1.02000.91200.9742model_form_blend
predicted_HBP-0.06500.0650form_only
predicted_HR0.10000.06700.0860model_form_blend
predicted_OBP0.28100.26800.2755model_form_blend
predicted_R0.60000.48300.5503model_form_blend
predicted_RBI0.31000.21100.2680model_form_blend
predicted_SLG0.34400.31700.3325model_form_blend
predicted_SO0.98601.10501.0365model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date258
Season rows before report date258
Report year2026
Profile rows used70
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.226

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB1
Fielding_E1
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB5
Hitting_AVG0.6
Hitting_BB0
Hitting_GIDP0
Hitting_H3
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB4
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedSS
gameID20260617_MIA@PHI
game_typefull
mlbID607208
playerID607208
playerNameTrea Turner
posSS
startedTrue
startingPositionSS
teamPHI
teamID21
game_date2026-06-17
sl_k_percent22.6
sl_bb_percent6.3
sl_woba0.271
sl_xwoba0.28
sl_xba0.233
sl_xslg0.347
sl_sweet_spot_percent32.9
sl_barrel_batted_rate4.9
sl_hard_hit_percent38.2
sl_exit_velocity_avg88.6
sl_launch_angle_avg9.9
sl_whiff_percent27.9
sl_swing_percent51.7
Brandon Marsh (669016) · BATTER · RF · Team PHI
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 210
All-history rows before 20260618: 210
System season_avg: 0.3240
Data season_avg (2026 season-to-date): 0.3363
Diff (system - data): -0.0123
System opponent_avg: 0.2270

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1760.0000.000Hitting_2B0.1900.000-0.1900.000
predicted_3B0.0290.0000.000Hitting_3B0.0430.000-0.0430.000
predicted_AB3.7604.0004.000Hitting_AB3.7384.0000.2620.000
predicted_AVG0.2650.0000.250Hitting_AVG0.3360.250-0.336-0.250
predicted_BB0.1910.0000.000Hitting_BB0.2050.000-0.2050.000
predicted_CS-0.0000.000BaseRunning_CS0.0190.000-0.0190.000
predicted_H1.0000.0001.000Hitting_H1.2571.000-1.257-1.000
predicted_HR0.1400.0000.000Hitting_HR0.1290.000-0.1290.000
predicted_OBP0.3370.0000.250Hitting_OBP0.3690.250-0.369-0.250
predicted_R0.5740.0001.000Hitting_R0.6330.000-0.6330.000
predicted_RBI0.5500.0001.000Hitting_RBI0.5811.000-0.581-1.000
predicted_SLG0.4540.0000.250Hitting_SLG0.5130.250-0.513-0.250
predicted_SO0.9122.0001.000Hitting_SO0.8052.0001.1950.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics3
Deboosted Metrics7
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_SO: 0.9120 -> 2.0000 (boost 1.0880, worse)
Biggest Deboostpredicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend55041predicted_H: 1.0000 -> 1.0659 (boost 0.0659, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3420 -> 0.3170 (deboost -0.0250, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62424predicted_RBI: 0.5609 -> 1.0000 (boost 0.4391, better)predicted_BB: 0.2042 -> 0.0000 (deboost -0.2042, worse)AB rounded to 4 (raw=3.77), rates preserved: AVG=0.280 HR/AB=0.038
5consistency_constraints11010predicted_R: 0.6090 -> 1.0000 (boost 0.3910, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.4557 -> 0.2500 (deboost -0.2057, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference41304predicted_SO: 1.0000 -> 2.0000 (boost 1.0000, worse)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2500 -> 0.4557 (boost 0.2057, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "669016",
  "player_name": "Brandon Marsh",
  "position": "RF",
  "team": "PHI",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.176,
        "predicted_3B": 0.029,
        "predicted_AB": 3.76,
        "predicted_AVG": 0.265,
        "predicted_BB": 0.191,
        "predicted_H": 1.0,
        "predicted_HR": 0.14,
        "predicted_OBP": 0.337,
        "predicted_R": 0.574,
        "predicted_RBI": 0.55,
        "predicted_SLG": 0.454,
        "predicted_SO": 0.912
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1802,
        "predicted_3B": 0.0244,
        "predicted_AB": 3.7692,
        "predicted_AVG": 0.2822,
        "predicted_BB": 0.2044,
        "predicted_H": 1.0659,
        "predicted_HBP": 0.038,
        "predicted_HR": 0.1467,
        "predicted_OBP": 0.342,
        "predicted_R": 0.6173,
        "predicted_RBI": 0.5685,
        "predicted_SLG": 0.4683,
        "predicted_SO": 0.9662
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.176,
          "after": 0.1802,
          "delta": 0.0042,
          "percent_delta": 0.0239,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.029,
          "after": 0.0244,
          "delta": -0.0046,
          "percent_delta": -0.1586,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.76,
          "after": 3.7692,
          "delta": 0.0092,
          "percent_delta": 0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.265,
          "after": 0.2822,
          "delta": 0.0172,
          "percent_delta": 0.0649,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.191,
          "after": 0.2044,
          "delta": 0.0134,
          "percent_delta": 0.0702,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0659,
          "delta": 0.0659,
          "percent_delta": 0.0659,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.14,
          "after": 0.1467,
          "delta": 0.0067,
          "percent_delta": 0.0479,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.337,
          "after": 0.342,
          "delta": 0.005,
          "percent_delta": 0.0148,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.574,
          "after": 0.6173,
          "delta": 0.0433,
          "percent_delta": 0.0754,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.55,
          "after": 0.5685,
          "delta": 0.0185,
          "percent_delta": 0.0336,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.454,
          "after": 0.4683,
          "delta": 0.0143,
          "percent_delta": 0.0315,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.912,
          "after": 0.9662,
          "delta": 0.0542,
          "percent_delta": 0.0594,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 5,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0659,
          "delta": 0.0659,
          "percent_delta": 0.0659,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 68
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1802,
        "predicted_3B": 0.0244,
        "predicted_AB": 3.7692,
        "predicted_AVG": 0.28,
        "predicted_BB": 0.2042,
        "predicted_H": 1.0553,
        "predicted_HBP": 0.038,
        "predicted_HR": 0.1444,
        "predicted_OBP": 0.317,
        "predicted_R": 0.609,
        "predicted_RBI": 0.5609,
        "predicted_SLG": 0.4557,
        "predicted_SO": 0.9673
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1802,
          "after": 0.1802,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0244,
          "after": 0.0244,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.7692,
          "after": 3.7692,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2822,
          "after": 0.28,
          "delta": -0.0022,
          "percent_delta": -0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2044,
          "after": 0.2042,
          "delta": -0.0002,
          "percent_delta": -0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0659,
          "after": 1.0553,
          "delta": -0.0106,
          "percent_delta": -0.0099,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.038,
          "after": 0.038,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1467,
          "after": 0.1444,
          "delta": -0.0023,
          "percent_delta": -0.0157,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.342,
          "after": 0.317,
          "delta": -0.025,
          "percent_delta": -0.0731,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.6173,
          "after": 0.609,
          "delta": -0.0083,
          "percent_delta": -0.0134,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5685,
          "after": 0.5609,
          "delta": -0.0076,
          "percent_delta": -0.0134,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4683,
          "after": 0.4557,
          "delta": -0.0126,
          "percent_delta": -0.0269,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9662,
          "after": 0.9673,
          "delta": 0.0011,
          "percent_delta": 0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.342,
          "after": 0.317,
          "delta": -0.025,
          "percent_delta": -0.0731,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.77), rates preserved: AVG=0.280 HR/AB=0.038",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1802,
          "after": 0.0,
          "delta": -0.1802,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0244,
          "after": 0.0,
          "delta": -0.0244,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.7692,
          "after": 4.0,
          "delta": 0.2308,
          "percent_delta": 0.0612,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2042,
          "after": 0.0,
          "delta": -0.2042,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0553,
          "after": 1.0,
          "delta": -0.0553,
          "percent_delta": -0.0524,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.038,
          "after": 0.0,
          "delta": -0.038,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1444,
          "after": 0.0,
          "delta": -0.1444,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5609,
          "after": 1.0,
          "delta": 0.4391,
          "percent_delta": 0.7828,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9673,
          "after": 1.0,
          "delta": 0.0327,
          "percent_delta": 0.0338,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.5609,
          "after": 1.0,
          "delta": 0.4391,
          "percent_delta": 0.7828,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.2042,
          "after": 0.0,
          "delta": -0.2042,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.609,
          "after": 1.0,
          "delta": 0.391,
          "percent_delta": 0.642,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.609,
          "after": 1.0,
          "delta": 0.391,
          "percent_delta": 0.642,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.28,
          "after": 0.25,
          "delta": -0.03,
          "percent_delta": -0.1071,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.317,
          "after": 0.25,
          "delta": -0.067,
          "percent_delta": -0.2114,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4557,
          "after": 0.25,
          "delta": -0.2057,
          "percent_delta": -0.4514,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4557,
          "after": 0.25,
          "delta": -0.2057,
          "percent_delta": -0.4514,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 1,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.28,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.317,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_RF": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4557,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.28,
          "delta": 0.03,
          "percent_delta": 0.12,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.317,
          "delta": 0.067,
          "percent_delta": 0.268,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4557,
          "delta": 0.2057,
          "percent_delta": 0.8228,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4557,
          "delta": 0.2057,
          "percent_delta": 0.8228,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.176,
        "after": 0.0,
        "delta": -0.176,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.029,
        "after": 0.0,
        "delta": -0.029,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.76,
        "after": 4.0,
        "delta": 0.24,
        "percent_delta": 0.0638,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.265,
        "after": 0.28,
        "delta": 0.015,
        "percent_delta": 0.0566,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.191,
        "after": 0.0,
        "delta": -0.191,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 0.0,
        "delta": -1.0,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.14,
        "after": 0.0,
        "delta": -0.14,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.337,
        "after": 0.317,
        "delta": -0.02,
        "percent_delta": -0.0593,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.574,
        "after": 0.0,
        "delta": -0.574,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.55,
        "after": 0.0,
        "delta": -0.55,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.454,
        "after": 0.4557,
        "delta": 0.0017,
        "percent_delta": 0.0037,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.912,
        "after": 2.0,
        "delta": 1.088,
        "percent_delta": 1.193,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 3,
      "deboosted_metrics": 7,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.912,
        "after": 2.0,
        "delta": 1.088,
        "percent_delta": 1.193,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 0.0,
        "delta": -1.0,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.176-
predicted_3B0.029-
predicted_AB3.760-
predicted_AVG0.265-
predicted_BB0.191-
predicted_H1.000-
predicted_HR0.140-
predicted_OBP0.337-
predicted_R0.574-
predicted_RBI0.550-
predicted_SLG0.454-
predicted_SO0.912-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1800.004
predicted_3B0.024-0.005
predicted_AB3.7690.009
predicted_AVG0.2820.017
predicted_BB0.2040.013
predicted_H1.0660.066
predicted_HBP0.038-
predicted_HR0.1470.007
predicted_OBP0.3420.005
predicted_R0.6170.043
predicted_RBI0.5690.018
predicted_SLG0.4680.014
predicted_SO0.9660.054
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1800.000
predicted_3B0.0240.000
predicted_AB3.7690.000
predicted_AVG0.280-0.002
predicted_BB0.204-0.000
predicted_H1.055-0.011
predicted_HBP0.0380.000
predicted_HR0.144-0.002
predicted_OBP0.317-0.025
predicted_R0.609-0.008
predicted_RBI0.561-0.008
predicted_SLG0.456-0.013
predicted_SO0.9670.001
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.77), rates preserved: AVG=0.280 HR/AB=0.038

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.180
predicted_3B0.000-0.024
predicted_AB4.0000.231
predicted_AVG0.250-0.030
predicted_BB0.000-0.204
predicted_H1.000-0.055
predicted_HR0.000-0.144
predicted_OBP0.250-0.067
predicted_R1.0000.391
predicted_RBI1.0000.439
predicted_SLG0.250-0.206
predicted_SO1.0000.033
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 68
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-21.0007.0001.0000.0001.0004.0005.0001.0006.0000.33330.36360.52380.33330.04760.19050.04760.2857
last_100.2010-39.00010.0002.0000.0002.0007.0008.0003.00014.0000.25640.32560.46150.25640.05130.17950.07690.3590
season0.6068-244.00079.00012.0002.0009.00035.00039.00013.00062.0000.32380.35880.50000.32380.03690.14340.05330.2541
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1860
predicted_3B0.0180
predicted_AB3.7820
predicted_AVG0.3059
predicted_BB0.2230
predicted_H1.1570
predicted_HBP0.0380
predicted_HR0.1560
predicted_OBP0.3490
predicted_R0.6770
predicted_RBI0.5940
predicted_SLG0.4881
predicted_SO1.0410
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.17600.18600.1802model_form_blend
predicted_3B0.02900.01800.0244model_form_blend
predicted_AB3.76003.78203.7692model_form_blend
predicted_AVG0.26500.30590.2822model_form_blend
predicted_BB0.19100.22300.2044model_form_blend
predicted_H1.00001.15701.0659model_form_blend
predicted_HBP-0.03800.0380form_only
predicted_HR0.14000.15600.1467model_form_blend
predicted_OBP0.33700.34900.3420model_form_blend
predicted_R0.57400.67700.6173model_form_blend
predicted_RBI0.55000.59400.5685model_form_blend
predicted_SLG0.45400.48810.4683model_form_blend
predicted_SO0.91201.04100.9662model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date210
Season rows before report date210
Report year2026
Profile rows used68
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO2
SF0
HBP0
season_avg0.324

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB1
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedLF
gameID20260617_MIA@PHI
game_typefull
mlbID669016
playerID669016
playerNameBrandon Marsh
posLF
startedTrue
startingPositionLF
teamPHI
teamID21
game_date2026-06-17
sl_k_percent24.4
sl_bb_percent4.9
sl_woba0.37
sl_xwoba0.333
sl_xba0.289
sl_xslg0.448
sl_sweet_spot_percent46.2
sl_barrel_batted_rate7.6
sl_hard_hit_percent46.8
sl_exit_velocity_avg90.1
sl_launch_angle_avg13.0
sl_whiff_percent24.9
sl_swing_percent53.3
Edmundo Sosa (624641) · BATTER · LF · Team PHI
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 101
All-history rows before 20260618: 101
System season_avg: 0.2340
Data season_avg (2026 season-to-date): 0.2000
Diff (system - data): 0.0340
System opponent_avg: 0.4290
System season_avg diverges from 2026 season-to-date by 0.0340. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1000.0000.000Hitting_2B0.1090.000-0.1090.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.7754.0003.000Hitting_AB3.1193.0000.8811.000
predicted_AVG0.2660.2500.333Hitting_AVG0.2000.3330.050-0.083
predicted_BB0.0500.0000.000Hitting_BB0.0890.000-0.0890.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.3001.0001.000Hitting_H0.6241.0000.3760.000
predicted_HR0.0500.0000.000Hitting_HR0.0690.000-0.0690.000
predicted_OBP0.2970.2500.333Hitting_OBP0.2370.3330.013-0.083
predicted_R0.3500.0000.000Hitting_R0.3471.000-0.347-1.000
predicted_RBI0.1900.0000.000Hitting_RBI0.4460.000-0.4460.000
predicted_SLG0.4390.2500.333Hitting_SLG0.3020.333-0.052-0.083
predicted_SO0.6501.0001.000Hitting_SO0.7330.0000.2671.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics2
Worse Metrics9
Biggest Boostpredicted_AB: 2.7750 -> 4.0000 (boost 1.2250, better)
Biggest Deboostpredicted_R: 0.3500 -> 0.0000 (deboost -0.3500, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend77070predicted_H: 0.3000 -> 0.5118 (boost 0.2118, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.4527 -> 0.3059 (deboost -0.1468, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling83526predicted_H: 0.5067 -> 1.0000 (boost 0.4933, better)predicted_RBI: 0.2746 -> 0.0000 (deboost -0.2746, worse)AB rounded to 3 (raw=2.83), rates preserved: AVG=0.179 HR/AB=0.030
5bvp_blend00000--Sample-size BvP blend (BvP AB=14.0, weight=0.127, BvP AVG=0.429)
6consistency_constraints10101-predicted_R: 0.3997 -> 0.0000 (deboost -0.3997, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context33030predicted_AVG: 0.1792 -> 0.3330 (boost 0.1538, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference11010predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
9current_json_final30303-predicted_AVG: 0.3330 -> 0.1792 (deboost -0.1538, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "624641",
  "player_name": "Edmundo Sosa",
  "position": "LF",
  "team": "PHI",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.1,
        "predicted_3B": 0.0,
        "predicted_AB": 2.775,
        "predicted_AVG": 0.266,
        "predicted_BB": 0.05,
        "predicted_H": 0.3,
        "predicted_HR": 0.05,
        "predicted_OBP": 0.297,
        "predicted_R": 0.35,
        "predicted_RBI": 0.19,
        "predicted_SLG": 0.439,
        "predicted_SO": 0.65
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0992,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.827,
        "predicted_AVG": 0.2752,
        "predicted_BB": 0.0578,
        "predicted_H": 0.5118,
        "predicted_HBP": 0.098,
        "predicted_HR": 0.0871,
        "predicted_OBP": 0.3076,
        "predicted_R": 0.4051,
        "predicted_RBI": 0.2783,
        "predicted_SLG": 0.4527,
        "predicted_SO": 0.6332
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1,
          "after": 0.0992,
          "delta": -0.0008,
          "percent_delta": -0.008,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.775,
          "after": 2.827,
          "delta": 0.052,
          "percent_delta": 0.0187,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.266,
          "after": 0.2752,
          "delta": 0.0092,
          "percent_delta": 0.0346,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.05,
          "after": 0.0578,
          "delta": 0.0078,
          "percent_delta": 0.156,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.3,
          "after": 0.5118,
          "delta": 0.2118,
          "percent_delta": 0.706,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.05,
          "after": 0.0871,
          "delta": 0.0371,
          "percent_delta": 0.742,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.297,
          "after": 0.3076,
          "delta": 0.0106,
          "percent_delta": 0.0357,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.35,
          "after": 0.4051,
          "delta": 0.0551,
          "percent_delta": 0.1574,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.19,
          "after": 0.2783,
          "delta": 0.0883,
          "percent_delta": 0.4647,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.439,
          "after": 0.4527,
          "delta": 0.0137,
          "percent_delta": 0.0312,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.65,
          "after": 0.6332,
          "delta": -0.0168,
          "percent_delta": -0.0258,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 7,
        "deboosted_metrics": 0,
        "better_metrics": 7,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.3,
          "after": 0.5118,
          "delta": 0.2118,
          "percent_delta": 0.706,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 40
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0992,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.827,
        "predicted_AVG": 0.1792,
        "predicted_BB": 0.0577,
        "predicted_H": 0.5067,
        "predicted_HBP": 0.098,
        "predicted_HR": 0.0857,
        "predicted_OBP": 0.1957,
        "predicted_R": 0.3997,
        "predicted_RBI": 0.2746,
        "predicted_SLG": 0.3059,
        "predicted_SO": 0.6339
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0992,
          "after": 0.0992,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.827,
          "after": 2.827,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2752,
          "after": 0.1792,
          "delta": -0.096,
          "percent_delta": -0.3488,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0578,
          "after": 0.0577,
          "delta": -0.0001,
          "percent_delta": -0.0017,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.5118,
          "after": 0.5067,
          "delta": -0.0051,
          "percent_delta": -0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.098,
          "after": 0.098,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0871,
          "after": 0.0857,
          "delta": -0.0014,
          "percent_delta": -0.0161,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3076,
          "after": 0.1957,
          "delta": -0.1119,
          "percent_delta": -0.3638,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4051,
          "after": 0.3997,
          "delta": -0.0054,
          "percent_delta": -0.0133,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2783,
          "after": 0.2746,
          "delta": -0.0037,
          "percent_delta": -0.0133,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4527,
          "after": 0.3059,
          "delta": -0.1468,
          "percent_delta": -0.3243,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6332,
          "after": 0.6339,
          "delta": 0.0007,
          "percent_delta": 0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4527,
          "after": 0.3059,
          "delta": -0.1468,
          "percent_delta": -0.3243,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.83), rates preserved: AVG=0.179 HR/AB=0.030",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0992,
          "after": 0.0,
          "delta": -0.0992,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.827,
          "after": 3.0,
          "delta": 0.173,
          "percent_delta": 0.0612,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0577,
          "after": 0.0,
          "delta": -0.0577,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.5067,
          "after": 1.0,
          "delta": 0.4933,
          "percent_delta": 0.9736,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.098,
          "after": 0.0,
          "delta": -0.098,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0857,
          "after": 0.0,
          "delta": -0.0857,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2746,
          "after": 0.0,
          "delta": -0.2746,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6339,
          "after": 1.0,
          "delta": 0.3661,
          "percent_delta": 0.5775,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 3,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.5067,
          "after": 1.0,
          "delta": 0.4933,
          "percent_delta": 0.9736,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.2746,
          "after": 0.0,
          "delta": -0.2746,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=14.0, weight=0.127, BvP AVG=0.429)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.8727,
        "bvp": 0.1273
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3997,
          "after": 0.0,
          "delta": -0.3997,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3997,
          "after": 0.0,
          "delta": -0.3997,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1792,
          "after": 0.333,
          "delta": 0.1538,
          "percent_delta": 0.8583,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.1957,
          "after": 0.333,
          "delta": 0.1373,
          "percent_delta": 0.7016,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3059,
          "after": 0.333,
          "delta": 0.0271,
          "percent_delta": 0.0886,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1792,
          "after": 0.333,
          "delta": 0.1538,
          "percent_delta": 0.8583,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.1792,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_LF": 0.0,
        "predicted_OBP": 0.1957,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3059,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1792,
          "delta": -0.1538,
          "percent_delta": -0.4617,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.1957,
          "delta": -0.1373,
          "percent_delta": -0.4124,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3059,
          "delta": -0.0271,
          "percent_delta": -0.0814,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1792,
          "delta": -0.1538,
          "percent_delta": -0.4617,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.775,
        "after": 4.0,
        "delta": 1.225,
        "percent_delta": 0.4414,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.266,
        "after": 0.1792,
        "delta": -0.0868,
        "percent_delta": -0.3263,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.05,
        "after": 0.0,
        "delta": -0.05,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.3,
        "after": 1.0,
        "delta": 0.7,
        "percent_delta": 2.3333,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.05,
        "after": 0.0,
        "delta": -0.05,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.297,
        "after": 0.1957,
        "delta": -0.1013,
        "percent_delta": -0.3411,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.35,
        "after": 0.0,
        "delta": -0.35,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.19,
        "after": 0.0,
        "delta": -0.19,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.439,
        "after": 0.3059,
        "delta": -0.1331,
        "percent_delta": -0.3032,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.65,
        "after": 1.0,
        "delta": 0.35,
        "percent_delta": 0.5385,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 2,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 2.775,
        "after": 4.0,
        "delta": 1.225,
        "percent_delta": 0.4414,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_R",
        "before": 0.35,
        "after": 0.0,
        "delta": -0.35,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.100-
predicted_3B0.000-
predicted_AB2.775-
predicted_AVG0.266-
predicted_BB0.050-
predicted_H0.300-
predicted_HR0.050-
predicted_OBP0.297-
predicted_R0.350-
predicted_RBI0.190-
predicted_SLG0.439-
predicted_SO0.650-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.099-0.001
predicted_3B0.0010.001
predicted_AB2.8270.052
predicted_AVG0.2750.009
predicted_BB0.0580.008
predicted_H0.5120.212
predicted_HBP0.098-
predicted_HR0.0870.037
predicted_OBP0.3080.011
predicted_R0.4050.055
predicted_RBI0.2780.088
predicted_SLG0.4530.014
predicted_SO0.633-0.017
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0990.000
predicted_3B0.0010.000
predicted_AB2.8270.000
predicted_AVG0.179-0.096
predicted_BB0.058-0.000
predicted_H0.507-0.005
predicted_HBP0.0980.000
predicted_HR0.086-0.001
predicted_OBP0.196-0.112
predicted_R0.400-0.005
predicted_RBI0.275-0.004
predicted_SLG0.306-0.147
predicted_SO0.6340.001
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.83), rates preserved: AVG=0.179 HR/AB=0.030

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=14.0, weight=0.127, BvP AVG=0.429)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.099
predicted_3B0.000-0.001
predicted_AB3.0000.173
predicted_AVG0.3330.154
predicted_BB0.000-0.058
predicted_H1.0000.493
predicted_HR0.000-0.086
predicted_OBP0.3330.137
predicted_R0.000-0.400
predicted_RBI0.000-0.275
predicted_SLG0.3330.027
predicted_SO1.0000.366
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 40
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-13.0006.0000.0000.0001.0001.0004.0000.0001.0000.46150.50000.69230.46150.07690.07690.00000.0769
last_100.2010-24.0008.0001.0000.0002.0004.0005.0000.0006.0000.33330.34620.62500.33330.08330.16670.00000.2500
season0.6040-111.00026.0004.0000.0004.00018.00014.0002.00026.0000.23420.26270.37840.23420.03600.16220.01800.2342
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0980
predicted_3B0.0020
predicted_AB2.9080
predicted_AVG0.2896
predicted_BB0.0700
predicted_H0.8420
predicted_HBP0.0980
predicted_HR0.1450
predicted_OBP0.3241
predicted_R0.4910
predicted_RBI0.4160
predicted_SLG0.4741
predicted_SO0.6070
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.10000.09800.0992model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB2.77502.90802.8270model_form_blend
predicted_AVG0.26600.28960.2752model_form_blend
predicted_BB0.05000.07000.0578model_form_blend
predicted_H0.30000.84200.5118model_form_blend
predicted_HBP-0.09800.0980form_only
predicted_HR0.05000.14500.0871model_form_blend
predicted_OBP0.29700.32410.3076model_form_blend
predicted_R0.35000.49100.4051model_form_blend
predicted_RBI0.19000.41600.2783model_form_blend
predicted_SLG0.43900.47410.4527model_form_blend
predicted_SO0.65000.60700.6332model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date101
Season rows before report date101
Report year2026
Profile rows used40
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.234

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder9
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedSS
gameID20260616_MIA@PHI
game_typefull
mlbID624641
playerID624641
playerNameEdmundo Sosa
pos2B
startedTrue
startingPositionSS
teamPHI
teamID21
game_date2026-06-16
sl_k_percent21.7
sl_bb_percent2.5
sl_woba0.283
sl_xwoba0.329
sl_xba0.282
sl_xslg0.446
sl_sweet_spot_percent34.5
sl_barrel_batted_rate6.9
sl_hard_hit_percent39.1
sl_exit_velocity_avg86.7
sl_launch_angle_avg9.6
sl_whiff_percent25.4
sl_swing_percent60.6
J.T. Realmuto (592663) · BATTER · C · Team PHI
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 146
All-history rows before 20260618: 146
System season_avg: 0.2060
Data season_avg (2026 season-to-date): 0.2425
Diff (system - data): -0.0365
System opponent_avg: 0.0830
System season_avg diverges from 2026 season-to-date by -0.0365. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0830.0000.000Hitting_2B0.1160.000-0.1160.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.4384.0003.000Hitting_AB3.4454.0000.5550.000
predicted_AVG0.2290.0000.333Hitting_AVG0.2430.000-0.2430.000
predicted_BB0.2920.0000.000Hitting_BB0.2880.000-0.2880.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.7100.0001.000Hitting_H0.8360.000-0.8360.000
predicted_HR0.1300.0000.000Hitting_HR0.0820.000-0.0820.000
predicted_OBP0.2860.0000.333Hitting_OBP0.3210.000-0.3210.000
predicted_R0.3330.0000.000Hitting_R0.3420.000-0.3420.000
predicted_RBI0.4700.0000.000Hitting_RBI0.3360.000-0.3360.000
predicted_SLG0.3750.0000.333Hitting_SLG0.3480.000-0.3480.000
predicted_SO0.7711.0001.000Hitting_SO0.6583.0000.342-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics2
Deboosted Metrics9
Better Metrics1
Worse Metrics10
Biggest Boostpredicted_AB: 3.4380 -> 4.0000 (boost 0.5620, better)
Biggest Deboostpredicted_H: 0.7100 -> 0.0000 (deboost -0.7100, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend32112predicted_AB: 3.4380 -> 3.4924 (boost 0.0544, better)predicted_AVG: 0.2290 -> 0.2180 (deboost -0.0110, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.3720 -> 0.3501 (deboost -0.0219, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_H: 0.7078 -> 1.0000 (boost 0.2922, better)predicted_RBI: 0.5048 -> 0.0000 (deboost -0.5048, worse)AB rounded to 3 (raw=3.49), rates preserved: AVG=0.203 HR/AB=0.042
5bvp_blend00000--Sample-size BvP blend (BvP AB=12.0, weight=0.114, BvP AVG=0.083)
6consistency_constraints10101-predicted_R: 0.3467 -> 0.0000 (deboost -0.3467, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context32121predicted_AVG: 0.2027 -> 0.3330 (boost 0.1303, better)predicted_SLG: 0.3501 -> 0.3330 (deboost -0.0171, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference21111predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final31212predicted_SLG: 0.3330 -> 0.3501 (boost 0.0171, better)predicted_AVG: 0.3330 -> 0.2027 (deboost -0.1303, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "592663",
  "player_name": "J.T. Realmuto",
  "position": "C",
  "team": "PHI",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.083,
        "predicted_3B": 0.0,
        "predicted_AB": 3.438,
        "predicted_AVG": 0.229,
        "predicted_BB": 0.292,
        "predicted_H": 0.71,
        "predicted_HR": 0.13,
        "predicted_OBP": 0.286,
        "predicted_R": 0.333,
        "predicted_RBI": 0.47,
        "predicted_SLG": 0.375,
        "predicted_SO": 0.771
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0773,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.4924,
        "predicted_AVG": 0.218,
        "predicted_BB": 0.3014,
        "predicted_H": 0.7149,
        "predicted_HBP": 0.049,
        "predicted_HR": 0.1476,
        "predicted_OBP": 0.2818,
        "predicted_R": 0.3514,
        "predicted_RBI": 0.5117,
        "predicted_SLG": 0.372,
        "predicted_SO": 0.8217
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.083,
          "after": 0.0773,
          "delta": -0.0057,
          "percent_delta": -0.0687,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.438,
          "after": 3.4924,
          "delta": 0.0544,
          "percent_delta": 0.0158,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.229,
          "after": 0.218,
          "delta": -0.011,
          "percent_delta": -0.048,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.292,
          "after": 0.3014,
          "delta": 0.0094,
          "percent_delta": 0.0322,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.71,
          "after": 0.7149,
          "delta": 0.0049,
          "percent_delta": 0.0069,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.13,
          "after": 0.1476,
          "delta": 0.0176,
          "percent_delta": 0.1354,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.286,
          "after": 0.2818,
          "delta": -0.0042,
          "percent_delta": -0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.333,
          "after": 0.3514,
          "delta": 0.0184,
          "percent_delta": 0.0553,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.47,
          "after": 0.5117,
          "delta": 0.0417,
          "percent_delta": 0.0887,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.375,
          "after": 0.372,
          "delta": -0.003,
          "percent_delta": -0.008,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.771,
          "after": 0.8217,
          "delta": 0.0507,
          "percent_delta": 0.0658,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.438,
          "after": 3.4924,
          "delta": 0.0544,
          "percent_delta": 0.0158,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.229,
          "after": 0.218,
          "delta": -0.011,
          "percent_delta": -0.048,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 48
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0773,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.4924,
        "predicted_AVG": 0.2027,
        "predicted_BB": 0.3011,
        "predicted_H": 0.7078,
        "predicted_HBP": 0.049,
        "predicted_HR": 0.1453,
        "predicted_OBP": 0.266,
        "predicted_R": 0.3467,
        "predicted_RBI": 0.5048,
        "predicted_SLG": 0.3501,
        "predicted_SO": 0.8226
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0773,
          "after": 0.0773,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4924,
          "after": 3.4924,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.218,
          "after": 0.2027,
          "delta": -0.0153,
          "percent_delta": -0.0702,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3014,
          "after": 0.3011,
          "delta": -0.0003,
          "percent_delta": -0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7149,
          "after": 0.7078,
          "delta": -0.0071,
          "percent_delta": -0.0099,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.049,
          "after": 0.049,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1476,
          "after": 0.1453,
          "delta": -0.0023,
          "percent_delta": -0.0156,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2818,
          "after": 0.266,
          "delta": -0.0158,
          "percent_delta": -0.0561,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3514,
          "after": 0.3467,
          "delta": -0.0047,
          "percent_delta": -0.0134,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5117,
          "after": 0.5048,
          "delta": -0.0069,
          "percent_delta": -0.0135,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.372,
          "after": 0.3501,
          "delta": -0.0219,
          "percent_delta": -0.0589,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8217,
          "after": 0.8226,
          "delta": 0.0009,
          "percent_delta": 0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.372,
          "after": 0.3501,
          "delta": -0.0219,
          "percent_delta": -0.0589,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.49), rates preserved: AVG=0.203 HR/AB=0.042",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0773,
          "after": 0.0,
          "delta": -0.0773,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4924,
          "after": 3.0,
          "delta": -0.4924,
          "percent_delta": -0.141,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3011,
          "after": 0.0,
          "delta": -0.3011,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7078,
          "after": 1.0,
          "delta": 0.2922,
          "percent_delta": 0.4128,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.049,
          "after": 0.0,
          "delta": -0.049,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1453,
          "after": 0.0,
          "delta": -0.1453,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5048,
          "after": 0.0,
          "delta": -0.5048,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8226,
          "after": 1.0,
          "delta": 0.1774,
          "percent_delta": 0.2157,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.7078,
          "after": 1.0,
          "delta": 0.2922,
          "percent_delta": 0.4128,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.5048,
          "after": 0.0,
          "delta": -0.5048,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=12.0, weight=0.114, BvP AVG=0.083)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.8857,
        "bvp": 0.1143
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3467,
          "after": 0.0,
          "delta": -0.3467,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3467,
          "after": 0.0,
          "delta": -0.3467,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2027,
          "after": 0.333,
          "delta": 0.1303,
          "percent_delta": 0.6428,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.266,
          "after": 0.333,
          "delta": 0.067,
          "percent_delta": 0.2519,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3501,
          "after": 0.333,
          "delta": -0.0171,
          "percent_delta": -0.0488,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2027,
          "after": 0.333,
          "delta": 0.1303,
          "percent_delta": 0.6428,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3501,
          "after": 0.333,
          "delta": -0.0171,
          "percent_delta": -0.0488,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2027,
        "predicted_BB": 0.0,
        "predicted_C": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.266,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3501,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2027,
          "delta": -0.1303,
          "percent_delta": -0.3914,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.266,
          "delta": -0.067,
          "percent_delta": -0.2013,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3501,
          "delta": 0.0171,
          "percent_delta": 0.0513,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3501,
          "delta": 0.0171,
          "percent_delta": 0.0513,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2027,
          "delta": -0.1303,
          "percent_delta": -0.3914,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.083,
        "after": 0.0,
        "delta": -0.083,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.438,
        "after": 4.0,
        "delta": 0.562,
        "percent_delta": 0.1635,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.229,
        "after": 0.2027,
        "delta": -0.0263,
        "percent_delta": -0.1148,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.292,
        "after": 0.0,
        "delta": -0.292,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.71,
        "after": 0.0,
        "delta": -0.71,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.13,
        "after": 0.0,
        "delta": -0.13,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.286,
        "after": 0.266,
        "delta": -0.02,
        "percent_delta": -0.0699,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.333,
        "after": 0.0,
        "delta": -0.333,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.47,
        "after": 0.0,
        "delta": -0.47,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.375,
        "after": 0.3501,
        "delta": -0.0249,
        "percent_delta": -0.0664,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.771,
        "after": 1.0,
        "delta": 0.229,
        "percent_delta": 0.297,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 2,
      "deboosted_metrics": 9,
      "better_metrics": 1,
      "worse_metrics": 10,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.438,
        "after": 4.0,
        "delta": 0.562,
        "percent_delta": 0.1635,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.71,
        "after": 0.0,
        "delta": -0.71,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.083-
predicted_3B0.000-
predicted_AB3.438-
predicted_AVG0.229-
predicted_BB0.292-
predicted_H0.710-
predicted_HR0.130-
predicted_OBP0.286-
predicted_R0.333-
predicted_RBI0.470-
predicted_SLG0.375-
predicted_SO0.771-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.077-0.006
predicted_3B0.0010.001
predicted_AB3.4920.054
predicted_AVG0.218-0.011
predicted_BB0.3010.009
predicted_H0.7150.005
predicted_HBP0.049-
predicted_HR0.1480.018
predicted_OBP0.282-0.004
predicted_R0.3510.018
predicted_RBI0.5120.042
predicted_SLG0.372-0.003
predicted_SO0.8220.051
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0770.000
predicted_3B0.0010.000
predicted_AB3.4920.000
predicted_AVG0.203-0.015
predicted_BB0.301-0.000
predicted_H0.708-0.007
predicted_HBP0.0490.000
predicted_HR0.145-0.002
predicted_OBP0.266-0.016
predicted_R0.347-0.005
predicted_RBI0.505-0.007
predicted_SLG0.350-0.022
predicted_SO0.8230.001
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.49), rates preserved: AVG=0.203 HR/AB=0.042

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=12.0, weight=0.114, BvP AVG=0.083)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.077
predicted_3B0.000-0.001
predicted_AB3.000-0.492
predicted_AVG0.3330.130
predicted_BB0.000-0.301
predicted_H1.0000.292
predicted_HR0.000-0.145
predicted_OBP0.3330.067
predicted_R0.000-0.347
predicted_RBI0.000-0.505
predicted_SLG0.333-0.017
predicted_SO1.0000.177
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 48
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-19.0004.0000.0000.0002.0006.0002.0001.0005.0000.21050.25000.52630.21050.10530.31580.05260.2632
last_100.2010-35.0005.0000.0000.0002.0007.0004.0005.00012.0000.14290.25000.31430.14290.05710.20000.14290.3429
season0.6048-165.00034.0004.0000.0005.00017.00016.00014.00037.0000.20610.28260.32120.20610.03030.10300.08480.2242
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0690
predicted_3B0.0020
predicted_AB3.5710
predicted_AVG0.2022
predicted_BB0.3150
predicted_H0.7220
predicted_HBP0.0490
predicted_HR0.1730
predicted_OBP0.2757
predicted_R0.3780
predicted_RBI0.5720
predicted_SLG0.3677
predicted_SO0.8950
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.08300.06900.0773model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB3.43803.57103.4924model_form_blend
predicted_AVG0.22900.20220.2180model_form_blend
predicted_BB0.29200.31500.3014model_form_blend
predicted_H0.71000.72200.7149model_form_blend
predicted_HBP-0.04900.0490form_only
predicted_HR0.13000.17300.1476model_form_blend
predicted_OBP0.28600.27570.2818model_form_blend
predicted_R0.33300.37800.3514model_form_blend
predicted_RBI0.47000.57200.5117model_form_blend
predicted_SLG0.37500.36770.3720model_form_blend
predicted_SO0.77100.89500.8217model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date146
Season rows before report date146
Report year2026
Profile rows used48
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.206

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO3
Hitting_TB0
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedC
gameID20260616_MIA@PHI
game_typefull
mlbID592663
playerID592663
playerNameJ.T. Realmuto
posC
startedTrue
startingPositionC
teamPHI
teamID21
game_date2026-06-16
sl_k_percent20.0
sl_bb_percent7.6
sl_woba0.276
sl_xwoba0.321
sl_xba0.251
sl_xslg0.395
sl_sweet_spot_percent34.1
sl_barrel_batted_rate5.4
sl_hard_hit_percent39.5
sl_exit_velocity_avg89.1
sl_launch_angle_avg10.2
sl_whiff_percent24.3
sl_swing_percent47.8
Bryson Stott (681082) · BATTER · 2B · Team PHI
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 203
All-history rows before 20260618: 203
System season_avg: 0.2350
Data season_avg (2026 season-to-date): 0.2242
Diff (system - data): 0.0108
System opponent_avg: 0.4240

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1940.0000.000Hitting_2B0.1770.000-0.1770.000
predicted_3B0.0300.0000.000Hitting_3B0.0300.000-0.0300.000
predicted_AB3.4334.0003.000Hitting_AB3.5814.0000.4190.000
predicted_AVG0.2550.2500.333Hitting_AVG0.2240.5000.026-0.250
predicted_BB0.2690.0000.000Hitting_BB0.2560.000-0.2560.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.8701.0001.000Hitting_H0.8032.0000.197-1.000
predicted_HR0.0900.0000.000Hitting_HR0.1030.000-0.1030.000
predicted_OBP0.3290.2500.333Hitting_OBP0.2780.500-0.028-0.250
predicted_R0.3130.0000.000Hitting_R0.3250.000-0.3250.000
predicted_RBI0.5400.0000.000Hitting_RBI0.5320.000-0.5320.000
predicted_SB-0.0000.000BaseRunning_SB0.2121.000-0.212-1.000
predicted_SLG0.4210.2500.333Hitting_SLG0.3770.500-0.127-0.250
predicted_SO0.6121.0001.000Hitting_SO0.5810.0000.4191.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics3
Deboosted Metrics6
Better Metrics2
Worse Metrics7
Biggest Boostpredicted_AB: 3.4330 -> 4.0000 (boost 0.5670, better)
Biggest Deboostpredicted_RBI: 0.5400 -> 0.0000 (deboost -0.5400, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend33030predicted_R: 0.3130 -> 0.3708 (boost 0.0578, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3325 -> 0.3177 (deboost -0.0148, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_SO: 0.6140 -> 1.0000 (boost 0.3860, worse)predicted_RBI: 0.5625 -> 0.0000 (deboost -0.5625, worse)AB rounded to 3 (raw=3.47), rates preserved: AVG=0.259 HR/AB=0.022
5bvp_blend00000--Sample-size BvP blend (BvP AB=9.0, weight=0.092, BvP AVG=0.444)
6consistency_constraints10101-predicted_R: 0.3658 -> 0.0000 (deboost -0.3658, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context32121predicted_AVG: 0.2594 -> 0.3330 (boost 0.0736, better)predicted_SLG: 0.4179 -> 0.3330 (deboost -0.0849, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference11010predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
9current_json_final31212predicted_SLG: 0.3330 -> 0.4179 (boost 0.0849, better)predicted_AVG: 0.3330 -> 0.2594 (deboost -0.0736, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "681082",
  "player_name": "Bryson Stott",
  "position": "2B",
  "team": "PHI",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.194,
        "predicted_3B": 0.03,
        "predicted_AB": 3.433,
        "predicted_AVG": 0.255,
        "predicted_BB": 0.269,
        "predicted_H": 0.87,
        "predicted_HR": 0.09,
        "predicted_OBP": 0.329,
        "predicted_R": 0.313,
        "predicted_RBI": 0.54,
        "predicted_SLG": 0.421,
        "predicted_SO": 0.612
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2246,
        "predicted_3B": 0.0472,
        "predicted_AB": 3.4698,
        "predicted_AVG": 0.2627,
        "predicted_BB": 0.2971,
        "predicted_H": 0.9089,
        "predicted_HBP": 0.012,
        "predicted_HR": 0.0783,
        "predicted_OBP": 0.3325,
        "predicted_R": 0.3708,
        "predicted_RBI": 0.5701,
        "predicted_SLG": 0.4299,
        "predicted_SO": 0.6133
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.194,
          "after": 0.2246,
          "delta": 0.0306,
          "percent_delta": 0.1577,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.03,
          "after": 0.0472,
          "delta": 0.0172,
          "percent_delta": 0.5733,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.433,
          "after": 3.4698,
          "delta": 0.0368,
          "percent_delta": 0.0107,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.255,
          "after": 0.2627,
          "delta": 0.0077,
          "percent_delta": 0.0302,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.269,
          "after": 0.2971,
          "delta": 0.0281,
          "percent_delta": 0.1045,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.87,
          "after": 0.9089,
          "delta": 0.0389,
          "percent_delta": 0.0447,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.09,
          "after": 0.0783,
          "delta": -0.0117,
          "percent_delta": -0.13,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.329,
          "after": 0.3325,
          "delta": 0.0035,
          "percent_delta": 0.0106,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.313,
          "after": 0.3708,
          "delta": 0.0578,
          "percent_delta": 0.1847,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.54,
          "after": 0.5701,
          "delta": 0.0301,
          "percent_delta": 0.0557,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.421,
          "after": 0.4299,
          "delta": 0.0089,
          "percent_delta": 0.0211,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.612,
          "after": 0.6133,
          "delta": 0.0013,
          "percent_delta": 0.0021,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.313,
          "after": 0.3708,
          "delta": 0.0578,
          "percent_delta": 0.1847,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 67
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2246,
        "predicted_3B": 0.0472,
        "predicted_AB": 3.4698,
        "predicted_AVG": 0.2594,
        "predicted_BB": 0.2968,
        "predicted_H": 0.8999,
        "predicted_HBP": 0.012,
        "predicted_HR": 0.0771,
        "predicted_OBP": 0.3177,
        "predicted_R": 0.3658,
        "predicted_RBI": 0.5625,
        "predicted_SLG": 0.4179,
        "predicted_SO": 0.614
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2246,
          "after": 0.2246,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0472,
          "after": 0.0472,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4698,
          "after": 3.4698,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2627,
          "after": 0.2594,
          "delta": -0.0033,
          "percent_delta": -0.0126,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2971,
          "after": 0.2968,
          "delta": -0.0003,
          "percent_delta": -0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9089,
          "after": 0.8999,
          "delta": -0.009,
          "percent_delta": -0.0099,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.012,
          "after": 0.012,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0783,
          "after": 0.0771,
          "delta": -0.0012,
          "percent_delta": -0.0153,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3325,
          "after": 0.3177,
          "delta": -0.0148,
          "percent_delta": -0.0445,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3708,
          "after": 0.3658,
          "delta": -0.005,
          "percent_delta": -0.0135,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5701,
          "after": 0.5625,
          "delta": -0.0076,
          "percent_delta": -0.0133,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4299,
          "after": 0.4179,
          "delta": -0.012,
          "percent_delta": -0.0279,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6133,
          "after": 0.614,
          "delta": 0.0007,
          "percent_delta": 0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3325,
          "after": 0.3177,
          "delta": -0.0148,
          "percent_delta": -0.0445,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.47), rates preserved: AVG=0.259 HR/AB=0.022",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2246,
          "after": 0.0,
          "delta": -0.2246,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0472,
          "after": 0.0,
          "delta": -0.0472,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4698,
          "after": 3.0,
          "delta": -0.4698,
          "percent_delta": -0.1354,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2968,
          "after": 0.0,
          "delta": -0.2968,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8999,
          "after": 1.0,
          "delta": 0.1001,
          "percent_delta": 0.1112,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.012,
          "after": 0.0,
          "delta": -0.012,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0771,
          "after": 0.0,
          "delta": -0.0771,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5625,
          "after": 0.0,
          "delta": -0.5625,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.614,
          "after": 1.0,
          "delta": 0.386,
          "percent_delta": 0.6287,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.614,
          "after": 1.0,
          "delta": 0.386,
          "percent_delta": 0.6287,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.5625,
          "after": 0.0,
          "delta": -0.5625,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=9.0, weight=0.092, BvP AVG=0.444)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9077,
        "bvp": 0.0923
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3658,
          "after": 0.0,
          "delta": -0.3658,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3658,
          "after": 0.0,
          "delta": -0.3658,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2594,
          "after": 0.333,
          "delta": 0.0736,
          "percent_delta": 0.2837,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3177,
          "after": 0.333,
          "delta": 0.0153,
          "percent_delta": 0.0482,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4179,
          "after": 0.333,
          "delta": -0.0849,
          "percent_delta": -0.2032,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2594,
          "after": 0.333,
          "delta": 0.0736,
          "percent_delta": 0.2837,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4179,
          "after": 0.333,
          "delta": -0.0849,
          "percent_delta": -0.2032,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2594,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3177,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4179,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2594,
          "delta": -0.0736,
          "percent_delta": -0.2212,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3177,
          "delta": -0.0153,
          "percent_delta": -0.0459,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4179,
          "delta": 0.0849,
          "percent_delta": 0.255,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4179,
          "delta": 0.0849,
          "percent_delta": 0.255,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2594,
          "delta": -0.0736,
          "percent_delta": -0.2212,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.194,
        "after": 0.0,
        "delta": -0.194,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.03,
        "after": 0.0,
        "delta": -0.03,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.433,
        "after": 4.0,
        "delta": 0.567,
        "percent_delta": 0.1652,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.255,
        "after": 0.2594,
        "delta": 0.0044,
        "percent_delta": 0.0173,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.269,
        "after": 0.0,
        "delta": -0.269,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.87,
        "after": 1.0,
        "delta": 0.13,
        "percent_delta": 0.1494,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.09,
        "after": 0.0,
        "delta": -0.09,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.329,
        "after": 0.3177,
        "delta": -0.0113,
        "percent_delta": -0.0343,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.313,
        "after": 0.0,
        "delta": -0.313,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.54,
        "after": 0.0,
        "delta": -0.54,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.421,
        "after": 0.4179,
        "delta": -0.0031,
        "percent_delta": -0.0074,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.612,
        "after": 1.0,
        "delta": 0.388,
        "percent_delta": 0.634,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 3,
      "deboosted_metrics": 6,
      "better_metrics": 2,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.433,
        "after": 4.0,
        "delta": 0.567,
        "percent_delta": 0.1652,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.54,
        "after": 0.0,
        "delta": -0.54,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.194-
predicted_3B0.030-
predicted_AB3.433-
predicted_AVG0.255-
predicted_BB0.269-
predicted_H0.870-
predicted_HR0.090-
predicted_OBP0.329-
predicted_R0.313-
predicted_RBI0.540-
predicted_SLG0.421-
predicted_SO0.612-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2250.031
predicted_3B0.0470.017
predicted_AB3.4700.037
predicted_AVG0.2630.008
predicted_BB0.2970.028
predicted_H0.9090.039
predicted_HBP0.012-
predicted_HR0.078-0.012
predicted_OBP0.3330.004
predicted_R0.3710.058
predicted_RBI0.5700.030
predicted_SLG0.4300.009
predicted_SO0.6130.001
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2250.000
predicted_3B0.0470.000
predicted_AB3.4700.000
predicted_AVG0.259-0.003
predicted_BB0.297-0.000
predicted_H0.900-0.009
predicted_HBP0.0120.000
predicted_HR0.077-0.001
predicted_OBP0.318-0.015
predicted_R0.366-0.005
predicted_RBI0.562-0.008
predicted_SLG0.418-0.012
predicted_SO0.6140.001
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.47), rates preserved: AVG=0.259 HR/AB=0.022

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=9.0, weight=0.092, BvP AVG=0.444)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.225
predicted_3B0.000-0.047
predicted_AB3.000-0.470
predicted_AVG0.3330.074
predicted_BB0.000-0.297
predicted_H1.0000.100
predicted_HR0.000-0.077
predicted_OBP0.3330.015
predicted_R0.000-0.366
predicted_RBI0.000-0.562
predicted_SLG0.333-0.085
predicted_SO1.0000.386
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 67
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0006.0002.0001.0000.0004.0004.0002.0002.0000.33330.40000.55560.33330.00000.22220.11110.1111
last_100.2010-35.00012.0004.0001.0000.0008.0005.0005.0007.0000.34290.42500.51430.34290.00000.22860.14290.2000
season0.6067-230.00054.00013.0002.0006.00034.00021.00018.00041.0000.23480.29200.38700.23480.02610.14780.07830.1783
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2670
predicted_3B0.0710
predicted_AB3.5210
predicted_AVG0.2734
predicted_BB0.3360
predicted_H0.9630
predicted_HBP0.0120
predicted_HR0.0620
predicted_OBP0.3373
predicted_R0.4510
predicted_RBI0.6120
predicted_SLG0.4423
predicted_SO0.6150
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.19400.26700.2246model_form_blend
predicted_3B0.03000.07100.0472model_form_blend
predicted_AB3.43303.52103.4698model_form_blend
predicted_AVG0.25500.27340.2627model_form_blend
predicted_BB0.26900.33600.2971model_form_blend
predicted_H0.87000.96300.9089model_form_blend
predicted_HBP-0.01200.0120form_only
predicted_HR0.09000.06200.0783model_form_blend
predicted_OBP0.32900.33730.3325model_form_blend
predicted_R0.31300.45100.3708model_form_blend
predicted_RBI0.54000.61200.5701model_form_blend
predicted_SLG0.42100.44230.4299model_form_blend
predicted_SO0.61200.61500.6133model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date203
Season rows before report date203
Report year2026
Profile rows used67
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.235

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB1
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.5
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB2
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_MIA@PHI
game_typefull
mlbID681082
playerID681082
playerNameBryson Stott
pos2B
startedTrue
startingPosition2B
teamPHI
teamID21
game_date2026-06-17
sl_k_percent16.8
sl_bb_percent7.0
sl_woba0.301
sl_xwoba0.312
sl_xba0.254
sl_xslg0.402
sl_sweet_spot_percent33.5
sl_barrel_batted_rate7.2
sl_hard_hit_percent40.7
sl_exit_velocity_avg89.6
sl_launch_angle_avg15.7
sl_whiff_percent17.2
sl_swing_percent43.4
Derek Hill (656537) · BATTER · CF · Team PHI
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 5
All-history rows before 20260618: 5
System season_avg: 0.2130
Data season_avg (2026 season-to-date): 0.2222
Diff (system - data): -0.0092
System opponent_avg: 0.2490

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0280.0000.000Hitting_2B0.0000.0000.0000.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.5003.0003.000Hitting_AB1.8000.0001.2003.000
predicted_AVG0.2760.6670.333Hitting_AVG0.222-0.444-
predicted_BB0.1120.0000.000Hitting_BB0.0000.0000.0000.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.1602.0001.000Hitting_H0.4000.0001.6002.000
predicted_HR0.0301.0000.000Hitting_HR0.0000.0001.0001.000
predicted_OBP0.2760.6670.333Hitting_OBP0.222-0.444-
predicted_R0.3091.0000.000Hitting_R0.2000.0000.8001.000
predicted_RBI0.1101.0000.000Hitting_RBI0.0000.0001.0001.000
predicted_SLG0.3421.6670.333Hitting_SLG0.222-1.444-
predicted_SO0.9551.0001.000Hitting_SO1.0000.0000.0001.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics9
Boosted Metrics5
Deboosted Metrics4
Better Metrics5
Worse Metrics4
Biggest Boostpredicted_H: 0.1600 -> 2.0000 (boost 1.8400, better)
Biggest Deboostpredicted_AVG: 0.2760 -> 0.1224 (deboost -0.1536, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend53232predicted_H: 0.1600 -> 0.3194 (boost 0.1594, better)predicted_AVG: 0.2760 -> 0.2524 (deboost -0.0236, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.3398 -> 0.1987 (deboost -0.1411, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling51414predicted_AB: 2.5837 -> 3.0000 (boost 0.4163, better)predicted_H: 0.3162 -> 0.0000 (deboost -0.3162, worse)AB rounded to 3 (raw=2.58), rates preserved: AVG=0.122 HR/AB=0.021
5consistency_constraints21111predicted_H: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_R: 0.3183 -> 0.0000 (deboost -0.3183, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.1224 -> 0.3330 (boost 0.2106, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference44040predicted_H: 1.0000 -> 2.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.1224 (deboost -0.2106, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "656537",
  "player_name": "Derek Hill",
  "position": "CF",
  "team": "PHI",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.028,
        "predicted_3B": 0.0,
        "predicted_AB": 2.5,
        "predicted_AVG": 0.276,
        "predicted_BB": 0.112,
        "predicted_H": 0.16,
        "predicted_HR": 0.03,
        "predicted_OBP": 0.276,
        "predicted_R": 0.309,
        "predicted_RBI": 0.11,
        "predicted_SLG": 0.342,
        "predicted_SO": 0.955
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0348,
        "predicted_3B": 0.0011,
        "predicted_AB": 2.5837,
        "predicted_AVG": 0.2524,
        "predicted_BB": 0.1097,
        "predicted_H": 0.3194,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.0542,
        "predicted_OBP": 0.264,
        "predicted_R": 0.3226,
        "predicted_RBI": 0.1664,
        "predicted_SLG": 0.3398,
        "predicted_SO": 0.983
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.028,
          "after": 0.0348,
          "delta": 0.0068,
          "percent_delta": 0.2429,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0011,
          "delta": 0.0011,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.5,
          "after": 2.5837,
          "delta": 0.0837,
          "percent_delta": 0.0335,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.276,
          "after": 0.2524,
          "delta": -0.0236,
          "percent_delta": -0.0855,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.112,
          "after": 0.1097,
          "delta": -0.0023,
          "percent_delta": -0.0205,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.16,
          "after": 0.3194,
          "delta": 0.1594,
          "percent_delta": 0.9963,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.03,
          "after": 0.0542,
          "delta": 0.0242,
          "percent_delta": 0.8067,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.276,
          "after": 0.264,
          "delta": -0.012,
          "percent_delta": -0.0435,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.309,
          "after": 0.3226,
          "delta": 0.0136,
          "percent_delta": 0.044,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.11,
          "after": 0.1664,
          "delta": 0.0564,
          "percent_delta": 0.5127,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.342,
          "after": 0.3398,
          "delta": -0.0022,
          "percent_delta": -0.0064,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.955,
          "after": 0.983,
          "delta": 0.028,
          "percent_delta": 0.0293,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 3,
        "deboosted_metrics": 2,
        "better_metrics": 3,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.16,
          "after": 0.3194,
          "delta": 0.1594,
          "percent_delta": 0.9963,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.276,
          "after": 0.2524,
          "delta": -0.0236,
          "percent_delta": -0.0855,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 42
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0348,
        "predicted_3B": 0.0011,
        "predicted_AB": 2.5837,
        "predicted_AVG": 0.1224,
        "predicted_BB": 0.1096,
        "predicted_H": 0.3162,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.0534,
        "predicted_OBP": 0.1581,
        "predicted_R": 0.3183,
        "predicted_RBI": 0.1642,
        "predicted_SLG": 0.1987,
        "predicted_SO": 0.9841
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0348,
          "after": 0.0348,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0011,
          "after": 0.0011,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.5837,
          "after": 2.5837,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2524,
          "after": 0.1224,
          "delta": -0.13,
          "percent_delta": -0.5151,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1097,
          "after": 0.1096,
          "delta": -0.0001,
          "percent_delta": -0.0009,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.3194,
          "after": 0.3162,
          "delta": -0.0032,
          "percent_delta": -0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.006,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0542,
          "after": 0.0534,
          "delta": -0.0008,
          "percent_delta": -0.0148,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.264,
          "after": 0.1581,
          "delta": -0.1059,
          "percent_delta": -0.4011,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3226,
          "after": 0.3183,
          "delta": -0.0043,
          "percent_delta": -0.0133,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.1664,
          "after": 0.1642,
          "delta": -0.0022,
          "percent_delta": -0.0132,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3398,
          "after": 0.1987,
          "delta": -0.1411,
          "percent_delta": -0.4152,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.983,
          "after": 0.9841,
          "delta": 0.0011,
          "percent_delta": 0.0011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3398,
          "after": 0.1987,
          "delta": -0.1411,
          "percent_delta": -0.4152,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.58), rates preserved: AVG=0.122 HR/AB=0.021",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0348,
          "after": 0.0,
          "delta": -0.0348,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0011,
          "after": 0.0,
          "delta": -0.0011,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.5837,
          "after": 3.0,
          "delta": 0.4163,
          "percent_delta": 0.1611,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1096,
          "after": 0.0,
          "delta": -0.1096,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.3162,
          "after": 0.0,
          "delta": -0.3162,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.0,
          "delta": -0.006,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0534,
          "after": 0.0,
          "delta": -0.0534,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.1642,
          "after": 0.0,
          "delta": -0.1642,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9841,
          "after": 1.0,
          "delta": 0.0159,
          "percent_delta": 0.0162,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 1,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.5837,
          "after": 3.0,
          "delta": 0.4163,
          "percent_delta": 0.1611,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 0.3162,
          "after": 0.0,
          "delta": -0.3162,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3183,
          "after": 0.0,
          "delta": -0.3183,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3183,
          "after": 0.0,
          "delta": -0.3183,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1224,
          "after": 0.333,
          "delta": 0.2106,
          "percent_delta": 1.7206,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.1581,
          "after": 0.333,
          "delta": 0.1749,
          "percent_delta": 1.1063,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.1987,
          "after": 0.333,
          "delta": 0.1343,
          "percent_delta": 0.6759,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1224,
          "after": 0.333,
          "delta": 0.2106,
          "percent_delta": 1.7206,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 4,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.1224,
        "predicted_BB": 0.0,
        "predicted_CF": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_OBP": 0.1581,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.1987,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1224,
          "delta": -0.2106,
          "percent_delta": -0.6324,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.1581,
          "delta": -0.1749,
          "percent_delta": -0.5252,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.1987,
          "delta": -0.1343,
          "percent_delta": -0.4034,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1224,
          "delta": -0.2106,
          "percent_delta": -0.6324,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.028,
        "after": 0.0,
        "delta": -0.028,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.5,
        "after": 3.0,
        "delta": 0.5,
        "percent_delta": 0.2,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.276,
        "after": 0.1224,
        "delta": -0.1536,
        "percent_delta": -0.5565,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.112,
        "after": 0.0,
        "delta": -0.112,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.16,
        "after": 2.0,
        "delta": 1.84,
        "percent_delta": 11.5,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.03,
        "after": 1.0,
        "delta": 0.97,
        "percent_delta": 32.3333,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.276,
        "after": 0.1581,
        "delta": -0.1179,
        "percent_delta": -0.4272,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.309,
        "after": 1.0,
        "delta": 0.691,
        "percent_delta": 2.2362,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.11,
        "after": 1.0,
        "delta": 0.89,
        "percent_delta": 8.0909,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.342,
        "after": 0.1987,
        "delta": -0.1433,
        "percent_delta": -0.419,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.955,
        "after": 1.0,
        "delta": 0.045,
        "percent_delta": 0.0471,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 5,
      "deboosted_metrics": 4,
      "better_metrics": 5,
      "worse_metrics": 4,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 0.16,
        "after": 2.0,
        "delta": 1.84,
        "percent_delta": 11.5,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AVG",
        "before": 0.276,
        "after": 0.1224,
        "delta": -0.1536,
        "percent_delta": -0.5565,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.028-
predicted_3B0.000-
predicted_AB2.500-
predicted_AVG0.276-
predicted_BB0.112-
predicted_H0.160-
predicted_HR0.030-
predicted_OBP0.276-
predicted_R0.309-
predicted_RBI0.110-
predicted_SLG0.342-
predicted_SO0.955-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.0350.007
predicted_3B0.0010.001
predicted_AB2.5840.084
predicted_AVG0.252-0.024
predicted_BB0.110-0.002
predicted_H0.3190.159
predicted_HBP0.006-
predicted_HR0.0540.024
predicted_OBP0.264-0.012
predicted_R0.3230.014
predicted_RBI0.1660.056
predicted_SLG0.340-0.002
predicted_SO0.9830.028
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0350.000
predicted_3B0.0010.000
predicted_AB2.5840.000
predicted_AVG0.122-0.130
predicted_BB0.110-0.000
predicted_H0.316-0.003
predicted_HBP0.0060.000
predicted_HR0.053-0.001
predicted_OBP0.158-0.106
predicted_R0.318-0.004
predicted_RBI0.164-0.002
predicted_SLG0.199-0.141
predicted_SO0.9840.001
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.58), rates preserved: AVG=0.122 HR/AB=0.021

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H0.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0001.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.035
predicted_3B0.000-0.001
predicted_AB3.0000.416
predicted_AVG0.3330.211
predicted_BB0.000-0.110
predicted_H1.0000.684
predicted_HR0.000-0.053
predicted_OBP0.3330.175
predicted_R0.000-0.318
predicted_RBI0.000-0.164
predicted_SLG0.3330.134
predicted_SO1.0000.016
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR1.0001.000
PA3.000-
R1.0001.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 42
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-14.0003.0000.0000.0000.0001.0002.0000.0007.0000.21430.21430.21430.21430.00000.07140.00000.5000
last_100.2010-26.0004.0000.0000.0001.0002.0003.0000.00013.0000.15380.15380.26920.15380.03850.07690.00000.5000
season0.6042-89.00019.0001.0000.0004.0008.00011.0004.00034.0000.21350.24730.35960.21350.04490.08990.04490.3820
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0460
predicted_3B0.0030
predicted_AB2.7210
predicted_AVG0.2136
predicted_BB0.1060
predicted_H0.5810
predicted_HBP0.0060
predicted_HR0.0940
predicted_OBP0.2443
predicted_R0.3450
predicted_RBI0.2590
predicted_SLG0.3362
predicted_SO1.0290
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.02800.04600.0348model_form_blend
predicted_3B0.00000.00300.0011model_form_blend
predicted_AB2.50002.72102.5837model_form_blend
predicted_AVG0.27600.21360.2524model_form_blend
predicted_BB0.11200.10600.1097model_form_blend
predicted_H0.16000.58100.3194model_form_blend
predicted_HBP-0.00600.0060form_only
predicted_HR0.03000.09400.0542model_form_blend
predicted_OBP0.27600.24430.2640model_form_blend
predicted_R0.30900.34500.3226model_form_blend
predicted_RBI0.11000.25900.1664model_form_blend
predicted_SLG0.34200.33620.3398model_form_blend
predicted_SO0.95501.02900.9830model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date5
Season rows before report date5
Report year2026
Profile rows used42
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA3
AB3
H2
2B0
3B0
HR1
R1
RBI1
BB0
SO1
SF0
HBP0
season_avg0.213

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder4
Hitting_substitutionOrder1
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedLF
gameID20260617_MIA@PHI
game_typeshort
mlbID656537
playerID656537
playerNameDerek Hill
posRF
startedFalse
startingPositionLF
teamPHI
teamID21
game_date2026-06-17
sl_k_percent34.3
sl_bb_percent7.1
sl_woba0.285
sl_xwoba0.282
sl_xba0.219
sl_xslg0.35
sl_sweet_spot_percent33.3
sl_barrel_batted_rate8.9
sl_hard_hit_percent33.3
sl_exit_velocity_avg89.9
sl_launch_angle_avg15.3
sl_whiff_percent37.6
sl_swing_percent51.8
Aaron Nola (605400) · PITCHER · Starter · Team PHI
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 14
All-history rows before 20260618: 14

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB2.0002.0002.000Pitching_BB1.7142.0000.2860.000
predicted_ER4.0004.0004.000Pitching_ER3.2863.0000.7141.000
predicted_H6.0006.0006.000Pitching_H5.7146.0000.2860.000
predicted_IP5.0005.0005.000Pitching_InningsPitched4.8644.2000.1360.800
predicted_SO3.0003.0003.000Pitching_SO5.0713.000-2.0710.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics0
Worse Metrics1
Biggest Boostpredicted_H: 4.0000 -> 6.0000 (boost 2.0000, worse)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2starter_quality_floor11001predicted_H: 4.0000 -> 6.0000 (boost 2.0000, worse)-Weak starter floor restored expected damage from recent form instead of assigning it to zero-inning bullpen rows.
3current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "605400",
  "player_name": "Aaron Nola",
  "position": "Starter",
  "team": "PHI",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 4.0,
        "predicted_H": 4.0,
        "predicted_HR": 1.0,
        "predicted_IP": 5.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "starter_quality_floor",
      "description": "Weak starter floor restored expected damage from recent form instead of assigning it to zero-inning bullpen rows.",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 4.0,
        "predicted_H": 6.0,
        "predicted_HR": 1.0,
        "predicted_IP": 5.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 4.0,
          "after": 6.0,
          "delta": 2.0,
          "percent_delta": 0.5,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 4.0,
          "after": 6.0,
          "delta": 2.0,
          "percent_delta": 0.5,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 3,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 4.0,
        "predicted_H": 6.0,
        "predicted_HR": 1.0,
        "predicted_IP": 5.0,
        "predicted_R": 4.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 6.0,
          "after": 6.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 4.0,
        "after": 4.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 4.0,
        "after": 6.0,
        "delta": 2.0,
        "percent_delta": 0.5,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 5.0,
        "after": 5.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 3.0,
        "after": 3.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 4.0,
        "after": 6.0,
        "delta": 2.0,
        "percent_delta": 0.5,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB2.000-
predicted_ER4.000-
predicted_H4.000-
predicted_HR1.000-
predicted_IP5.000-
predicted_SO3.000-
2. starter_quality_floor

Weak starter floor restored expected damage from recent form instead of assigning it to zero-inning bullpen rows.

MetricValueDelta vs Prev Step
predicted_BB2.0000.000
predicted_ER4.0000.000
predicted_H6.0002.000
predicted_HR1.0000.000
predicted_IP5.0000.000
predicted_SO3.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 14
Reference playing time: 5.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.45525.00016.00027.0006.00025.0004.0005.76001.32000.64001.08000.24001.00000.1600
last_100.351048.10036.00057.00018.00047.00010.0006.70341.55170.74481.17930.37240.97240.2069
season0.201470.20046.00080.00024.00071.00013.0005.85851.47170.65091.13210.33961.00470.1840
Weighted Prediction From Real Data
MetricValue
predicted_BB1.5790
predicted_ER3.1060
predicted_ERA5.6883
predicted_H5.3340
predicted_HR0.8450
predicted_IP5.0000
predicted_SO4.8020
predicted_WHIP1.4066
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB2.00001.57901.7732model_form_blend
predicted_ER4.00003.10603.5183model_form_blend
predicted_ERA-5.68835.6883form_only
predicted_H4.00005.33404.7188model_form_blend
predicted_HR1.00000.84500.9165model_form_blend
predicted_IP5.00005.00005.0000model_form_blend
predicted_SO3.00004.80203.9709model_form_blend
predicted_WHIP-1.40661.4066form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date14
Season rows before report date14
Report year2026
Profile rows used14
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP5.0
H6
R4
ER4
BB2
SO3
HR1
BF23
Pitches89

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB2
Pitching_Balk0
Pitching_Batters Faced22
Pitching_ER3
Pitching_ERA5.86
Pitching_Flyouts3
Pitching_Groundouts7
Pitching_H6
Pitching_HBP0
Pitching_HR2
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched4.2
Pitching_Pitches85
Pitching_R3
Pitching_SO3
Pitching_Strikes54
Pitching_Wild Pitch0
Pitching_pitchingOrder1
allPositionsPlayedP
gameID20260613_PHI@MIL
game_typefull
mlbID605400
playerID605400
playerNameAaron Nola
posP
startedTrue
startingPositionP
teamPHI
teamID21
game_date2026-06-13
sl_k_percent23.0
sl_bb_percent7.8
sl_woba0.36
sl_xwoba0.327
sl_sweet_spot_percent36.0
sl_barrel_batted_rate9.3
sl_hard_hit_percent38.8
sl_whiff_percent25.0
sl_swing_percent45.6
sl_avg_best_speed76.307417264
sl_avg_hyper_speed94.188164009
Jhoan Duran (661395) · PITCHER · Middle Reliever · Team PHI
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 26
All-history rows before 20260618: 26

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.1920.000-0.1920.000
predicted_ER0.0000.0000.000Pitching_ER0.1920.000-0.1920.000
predicted_H0.0000.0000.000Pitching_H0.6920.000-0.6920.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.8921.0000.1080.000
predicted_SO3.0003.0003.000Pitching_SO1.3461.0001.6542.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics1
Worse Metrics0
Biggest Boost-
Biggest Deboostpredicted_H: 2.0000 -> 0.0000 (deboost -2.0000, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10110-predicted_H: 2.0000 -> 0.0000 (deboost -2.0000, better)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "661395",
  "player_name": "Jhoan Duran",
  "position": "Middle Reliever",
  "team": "PHI",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 2.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 0.0,
          "delta": -2.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 0.0,
          "delta": -2.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 2.0,
        "after": 0.0,
        "delta": -2.0,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 3.0,
        "after": 3.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 2.0,
        "after": 0.0,
        "delta": -2.0,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H2.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO3.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 24
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.0000.0003.0000.0006.0000.0000.00000.60000.00000.60000.00001.20000.0000
last_100.351010.0000.0005.0000.00013.0000.0000.00000.50000.00000.50000.00001.30000.0000
season0.202423.2003.00015.0005.00035.0001.0001.14080.84510.12680.63380.21131.47890.0423
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2080
predicted_ER0.2710
predicted_ERA2.4345
predicted_H0.7790
predicted_HR0.0790
predicted_IP1.0000
predicted_SO1.1090
predicted_WHIP0.9868
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.20800.0899model_form_blend
predicted_ER0.00000.27100.1171model_form_blend
predicted_ERA-2.43452.4345form_only
predicted_H2.00000.77901.4723model_form_blend
predicted_HR0.00000.07900.0341model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO3.00001.10902.1827model_form_blend
predicted_WHIP-0.98680.9868form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date26
Season rows before report date26
Report year2026
Profile rows used24
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB0
SO3
HR0
BF3
Pitches14

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA1.90
Pitching_Flyouts1
Pitching_Groundouts1
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches11
Pitching_R0
Pitching_SO1
Pitching_Strikes7
Pitching_Wild Pitch0
Pitching_decisionS
Pitching_pitchingOrder6
allPositionsPlayedP
gameID20260613_PHI@MIL
game_typefull
mlbID661395
playerID661395
playerNameJhoan Duran
posP
startedFalse
startingPositionP
teamPHI
teamID21
game_date2026-06-13
sl_k_percent38.5
sl_bb_percent5.5
sl_woba0.24
sl_xwoba0.242
sl_sweet_spot_percent27.5
sl_barrel_batted_rate5.9
sl_hard_hit_percent49.0
sl_whiff_percent39.6
sl_swing_percent52.3
sl_avg_best_speed82.546527308
sl_avg_hyper_speed95.401983725
Jonathan Bowlan (680742) · PITCHER · Middle Reliever · Team PHI
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 22
All-history rows before 20260618: 22

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB0.1820.0000.8181.000
predicted_ER0.0000.0000.000Pitching_ER0.4090.000-0.4090.000
predicted_H0.0000.0000.000Pitching_H0.9090.000-0.9090.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.9141.0000.0860.000
predicted_SO0.0000.0000.000Pitching_SO1.0450.000-1.0450.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "680742",
  "player_name": "Jonathan Bowlan",
  "position": "Middle Reliever",
  "team": "PHI",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 22
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.1000.0004.0000.0007.0000.0000.00000.75000.00000.75000.00001.31250.0000
last_100.351010.0001.0008.0001.00011.0001.0000.90000.90000.10000.80000.10001.10000.1000
season0.202222.2009.00020.0004.00023.0001.0003.57351.05880.39710.88230.17651.01470.0441
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2240
predicted_ER0.3180
predicted_ERA2.8601
predicted_H0.8890
predicted_HR0.0980
predicted_IP1.0000
predicted_SO1.0520
predicted_WHIP1.1131
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00000.22400.6681model_form_blend
predicted_ER0.00000.31800.1360model_form_blend
predicted_ERA-2.86012.8601form_only
predicted_H0.00000.88900.3802model_form_blend
predicted_HR0.00000.09800.0419model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00001.05200.4499model_form_blend
predicted_WHIP-1.11311.1131form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date22
Season rows before report date22
Report year2026
Profile rows used22
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB1
SO0
HR0
BF4
Pitches17

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA3.57
Pitching_Flyouts1
Pitching_Groundouts2
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches11
Pitching_R0
Pitching_SO0
Pitching_Strikes7
Pitching_Wild Pitch0
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260617_MIA@PHI
game_typefull
mlbID680742
playerID680742
playerNameJonathan Bowlan
posP
startedFalse
startingPositionP
teamPHI
teamID21
game_date2026-06-17
sl_k_percent25.3
sl_bb_percent4.4
sl_woba0.252
sl_xwoba0.243
sl_sweet_spot_percent29.7
sl_barrel_batted_rate3.1
sl_hard_hit_percent34.4
sl_whiff_percent31.8
sl_swing_percent48.2
sl_avg_best_speed76.724561613
sl_avg_hyper_speed92.827352581
José Alvarado (621237) · PITCHER · Middle Reliever · Team PHI
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 31
All-history rows before 20260618: 31

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.2900.000-0.2900.000
predicted_ER0.0000.0000.000Pitching_ER0.5162.000-0.516-2.000
predicted_H1.0001.0001.000Pitching_H1.0322.000-0.032-1.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.6481.0000.3520.000
predicted_SO0.0000.0000.000Pitching_SO1.0651.000-1.065-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "621237",
  "player_name": "José Alvarado",
  "position": "Middle Reliever",
  "team": "PHI",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 31
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.2004.0005.0001.0007.0002.0007.71431.28570.85711.07140.21431.50000.4286
last_100.35109.0007.00010.0002.00010.0003.0007.00001.33330.77781.11110.22221.11110.3333
season0.203125.00016.00032.0009.00033.0003.0005.76001.64000.64001.28000.36001.32000.1200
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2950
predicted_ER0.6220
predicted_ERA5.7862
predicted_H1.0150
predicted_HR0.2310
predicted_IP1.0000
predicted_SO1.0940
predicted_WHIP1.3551
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.29500.1292model_form_blend
predicted_ER0.00000.62200.2724model_form_blend
predicted_ERA-5.78625.7862form_only
predicted_H1.00001.01501.0066model_form_blend
predicted_HR0.00000.23100.1012model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00001.09400.4792model_form_blend
predicted_WHIP-1.35511.3551form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date31
Season rows before report date31
Report year2026
Profile rows used31
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H1
R0
ER0
BB0
SO0
HR0
BF4
Pitches18

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced5
Pitching_ER2
Pitching_ERA5.76
Pitching_Flyouts2
Pitching_Groundouts0
Pitching_H2
Pitching_HBP0
Pitching_HR1
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches15
Pitching_R2
Pitching_SO1
Pitching_Strikes10
Pitching_Wild Pitch0
Pitching_pitchingOrder4
allPositionsPlayedP
gameID20260613_PHI@MIL
game_typefull
mlbID621237
playerID621237
playerNameJosé Alvarado
posP
startedFalse
startingPositionP
teamPHI
teamID21
game_date2026-06-13
sl_k_percent27.5
sl_bb_percent7.5
sl_woba0.366
sl_xwoba0.302
sl_sweet_spot_percent35.6
sl_barrel_batted_rate4.2
sl_hard_hit_percent28.8
sl_whiff_percent30.2
sl_swing_percent48.4
sl_avg_best_speed77.179544286
sl_avg_hyper_speed93.315815857
Orion Kerkering (689147) · PITCHER · Middle Reliever · Team PHI
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 30
All-history rows before 20260618: 30

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.4332.000-0.433-2.000
predicted_ER0.0000.0000.000Pitching_ER0.2331.000-0.233-1.000
predicted_H0.0000.0000.000Pitching_H0.6671.000-0.667-1.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.8371.0000.1630.000
predicted_SO1.0001.0001.000Pitching_SO1.0332.000-0.033-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "689147",
  "player_name": "Orion Kerkering",
  "position": "Middle Reliever",
  "team": "PHI",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 30
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.1001.0003.0004.0007.0000.0001.68751.31250.18750.56250.75001.31250.0000
last_100.351010.1002.0006.0006.00017.0000.0001.74191.16130.19350.58060.58061.64520.0000
season0.203027.2007.00020.00013.00031.0002.0002.27711.19280.25300.72290.46991.12050.0723
Weighted Prediction From Real Data
MetricValue
predicted_BB0.5050
predicted_ER0.3450
predicted_ERA3.1033
predicted_H0.7790
predicted_HR0.0770
predicted_IP1.0000
predicted_SO1.1750
predicted_WHIP1.2840
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.50500.2266model_form_blend
predicted_ER0.00000.34500.1548model_form_blend
predicted_ERA-3.10333.1033form_only
predicted_H0.00000.77900.3495model_form_blend
predicted_HR0.00000.07700.0345model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO1.00001.17501.0785model_form_blend
predicted_WHIP-1.28401.2840form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date30
Season rows before report date30
Report year2026
Profile rows used30
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB0
SO1
HR0
BF3
Pitches13

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB2
Pitching_Balk0
Pitching_Batters Faced7
Pitching_ER1
Pitching_ERA2.28
Pitching_Flyouts1
Pitching_Groundouts0
Pitching_H1
Pitching_HBP1
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches26
Pitching_R1
Pitching_SO2
Pitching_Strikes15
Pitching_Wild Pitch0
Pitching_pitchingOrder6
allPositionsPlayedP
gameID20260617_MIA@PHI
game_typefull
mlbID689147
playerID689147
playerNameOrion Kerkering
posP
startedFalse
startingPositionP
teamPHI
teamID21
game_date2026-06-17
sl_k_percent26.1
sl_bb_percent10.9
sl_woba0.279
sl_xwoba0.252
sl_sweet_spot_percent26.0
sl_barrel_batted_rate5.5
sl_hard_hit_percent21.9
sl_whiff_percent25.8
sl_swing_percent43.0
sl_avg_best_speed70.101697222
sl_avg_hyper_speed91.783453099

20260618_SF@ATL

Prediction Method: enhanced_ml_savant_pitcher_quality
Team Recent Window (Home): 61 games
Team Recent Window (Away): 65 games
Team Recent Period: Latest 10 games from dataset
Enhanced Prediction Target: {"away_runs": 4, "home_runs": 5, "confidence": 0.525151, "home_win_probability": 0.525151, "away_win_probability": 0.47484899999999997, "predicted_score_text": "SF 4 - 5 ATL", "embedded_savant_score_adjustment": {"applied": true, "source": "all_players_stats.csv embedded temporal Savant features", "feature_contract": {"training_grain": "one player-game row after collapsing granular at-bat rows", "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game", "hitter_signals": ["xwoba", "xba", "xslg", "barrel_batted_rate", "hard_hit_percent", "bat_speed", "launch_quality", "walk_rate", "strikeout_rate"], "pitcher_signals": ["xwoba_allowed", "barrel_allowed", "hard_hit_allowed", "whiff_rate", "command_score", "movement_score", "faced_est_woba", "faced_strikeout_rate"]}, "away": {"team": "SF", "original_runs": 4, "run_delta": 0.0835, "adjusted_runs": 4, "lineup": {"players_used": 9, "total_weight": 33.0, "quality": -0.06064327975080765, "contact": 0.10338410309602089, "power": -0.046012086029827926, "discipline": -0.05737749613562915, "xwoba": 0.31566666666666665, "recent_xwoba": 0.31566666666666665, "barrel": 6.787878787878788, "ab_hard_contact": -0.39758659794144374, "ab_bat_speed": 69.26120522362923, "ab_strikeout_rate": 0.20952557975932262, "available_players": 9, "top_players": [{"player_id": "805811", "player_name": "Bryce Eldridge", "position": "DH_805811", "weight": 3.0, "quality": 0.28815933318682807, "contact": 1.6856318271672772, "power": 1.6328908697249118, "discipline": 0.6163861788617886, "xwoba": 0.403, "recent_xwoba": 0.403, "barrel": 13.6, "ab_hard_contact": -0.3330397483589036, "ab_bat_speed": 73.21211734693877, "ab_strikeout_rate": 0.30357142857142855, "available": 1.0}, {"player_id": "687551", "player_name": "Drew Gilbert", "position": "DH_687551", "weight": 3.0, "quality": -0.3897778482953905, "contact": -0.8036071574265595, "power": -1.1094671504111724, "discipline": 0.03696180911388956, "xwoba": 0.278, "recent_xwoba": 0.278, "barrel": 2.6, "ab_hard_contact": -1.3523906272710744, "ab_bat_speed": 67.10556862745098, "ab_strikeout_rate": 0.20735294117647057, "available": 1.0}, {"player_id": "669477", "player_name": "Casey Schmitt", "position": "DH_669477", "weight": 4.0, "quality": 0.40858981192312244, "contact": 0.5874132950761793, "power": 0.8371345851475874, "discipline": -0.6357266575771346, "xwoba": 0.344, "recent_xwoba": 0.344, "barrel": 11.8, "ab_hard_contact": -0.08587972561968006, "ab_bat_speed": 70.20570686680469, "ab_strikeout_rate": 0.2028985507246377, "available": 1.0}, {"player_id": "650333", "player_name": "Luis Arraez", "position": "DH_650333", "weight": 4.0, "quality": -0.31844241851902844, "contact": 0.09332466633627913, "power": -0.9545259830265408, "discipline": 0.7260206326433012, "xwoba": 0.301, "recent_xwoba": 0.301, "barrel": 0.4000000000000001, "ab_hard_contact": -0.6482339462451288, "ab_bat_speed": 61.88162153750389, "ab_strikeout_rate": 0.03529411764705882, "available": 1.0}, {"player_id": "656305", "player_name": "Matt Chapman", "position": "DH_656305", "weight": 4.0, "quality": -0.38597499720456335, "contact": -0.4483028032950275, "power": -0.4473098710800859, "discipline": 0.2978225915057485, "xwoba": 0.294, "recent_xwoba": 0.294, "barrel": 6.8, "ab_hard_contact": -0.5435307549350606, "ab_bat_speed": 74.09591194968554, "ab_strikeout_rate": 0.2362778730703259, "available": 1.0}]}, "opposing_starter": {"available": true, "player_id": "527048", "player_name": "Martín Pérez", "quality": -0.138354643999007, "contact": 0.007426451974761604, "command": -0.17114285714285712, "movement": -1.0024210444520243, "xwoba": 0.314, "whiff": 22.5, "faced_est_woba": 0.267543125, "faced_launch_speed": 83.82962962962962, "faced_strikeout_rate": 0.23125, "faced_run_exp": 0.007916194341372912}}, "home": {"team": "ATL", "original_runs": 5, "run_delta": 0.1738, "adjusted_runs": 5, "lineup": {"players_used": 9, "total_weight": 33.0, "quality": 0.4106946369399674, "contact": 0.34356885900238604, "power": 0.43199998569077713, "discipline": 0.006038131517883068, "xwoba": 0.3305757575757575, "recent_xwoba": 0.3305757575757575, "barrel": 9.584848484848484, "ab_hard_contact": 0.6242327534147385, "ab_bat_speed": 70.96953762734606, "ab_strikeout_rate": 0.2179735884694467, "available_players": 9, "top_players": [{"player_id": "686948", "player_name": "Drake Baldwin", "position": "DH_686948", "weight": 4.0, "quality": 1.520121502114366, "contact": 1.6522128197268011, "power": 2.0, "discipline": 0.2863841947348045, "xwoba": 0.41, "recent_xwoba": 0.41, "barrel": 18.7, "ab_hard_contact": 1.6678273385981528, "ab_bat_speed": 73.73786871693122, "ab_strikeout_rate": 0.20243055555555556, "available": 1.0}, {"player_id": "671739", "player_name": "Michael Harris II", "position": "DH_671739", "weight": 4.0, "quality": 1.1653517430583513, "contact": 1.5420916733211236, "power": 1.7443581310438065, "discipline": -0.5160423925667827, "xwoba": 0.384, "recent_xwoba": 0.384, "barrel": 15.0, "ab_hard_contact": 1.538210239923747, "ab_bat_speed": 73.9240186965812, "ab_strikeout_rate": 0.2, "available": 1.0}, {"player_id": "621566", "player_name": "Matt Olson", "position": "DH_621566", "weight": 4.0, "quality": 1.175561627598744, "contact": 1.1533473922902493, "power": 1.7113069489233195, "discipline": 0.07105284552845528, "xwoba": 0.37, "recent_xwoba": 0.37, "barrel": 14.4, "ab_hard_contact": 1.649186597514006, "ab_bat_speed": 73.18710813492063, "ab_strikeout_rate": 0.23154761904761906, "available": 1.0}, {"player_id": "673490", "player_name": "Ha-Seong Kim", "position": "DH_673490", "weight": 3.0, "quality": -0.28012943466940504, "contact": -1.975471758150183, "power": -1.7478147500764176, "discipline": 0.2886242740998839, "xwoba": 0.213, "recent_xwoba": 0.213, "barrel": 2.4, "ab_hard_contact": -0.3429616681950199, "ab_bat_speed": 70.90607638888889, "ab_strikeout_rate": 0.2833333333333333, "available": 1.0}, {"player_id": "573262", "player_name": "Mike Yastrzemski", "position": "DH_573262", "weight": 3.0, "quality": -0.2163316769839044, "contact": -0.2575368886065321, "power": -0.5175620764267288, "discipline": -0.02155032907471928, "xwoba": 0.287, "recent_xwoba": 0.287, "barrel": 3.8, "ab_hard_contact": 0.26513942384637074, "ab_bat_speed": 68.96588831018518, "ab_strikeout_rate": 0.2722222222222222, "available": 1.0}]}, "opposing_starter": {"available": true, "player_id": "694738", "player_name": "Landen Roupp", "quality": 0.3083927259290661, "contact": 0.4922372040327781, "command": 0.22957142857142845, "movement": -0.34295671443570264, "xwoba": 0.289, "whiff": 26.2, "faced_est_woba": 0.267543125, "faced_launch_speed": 83.82962962962962, "faced_strikeout_rate": 0.23125, "faced_run_exp": 0.007916194341372912}}}, "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Production confidence governor cap enforced.", "pre_simulation_target": {"away_runs": 4, "home_runs": 5, "predicted_score_text": "SF 4 - 5 ATL", "confidence": 0.525151, "source": "enhanced_prediction_before_inning_simulation"}, "score_source": "enhanced_prediction.pre_simulation_target", "final_prediction_synced": true, "final_prediction_source": "pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "simulation_score_matches_prediction": true, "simulation_reconciliation": {"pre_simulation_score": {"away_runs": 4, "home_runs": 5, "score_text": "SF 4 - 5 ATL", "winner": "ATL"}, "final_simulation_score": {"away_runs": 4, "home_runs": 5, "score_text": "SF 4 - 5 ATL", "winner": "ATL"}, "winner_flipped_by_simulation": false, "away_run_delta": 0, "home_run_delta": 0, "total_run_delta": 0, "score_source": "enhanced_prediction.pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "final_prediction_source": "pre_simulation_target"}}
Factors Considered: Historical team performance, Season-to-date run differential, Recent form (latest 10 games), Head-to-head matchup history, Player-level statistics, Baseball Savant hitter xwOBA/xBA/xSLG/contact quality, Baseball Savant pitcher xwOBA/contact/whiff quality, Recent 10-game performance trends, Pitcher recent form analysis, Team hitting/pitching streaks, Low-score probability modeling, Environmental factors, Home field advantage, Game timing factors, Seasonal adjustments, Machine learning models

Game-Level Prediction Audit

LayerScoreWinnerConfidenceSource or usageSynced or matches
Shipped predictionSF 4 - 5 ATLATL0.525enhanced_prediction.pre_simulation_targetTrue
Simulation drawSF 4 - 5 ATLATL-advisory_box_score_drawTrue

The shipped score is the pre-simulation model target. The inning simulation is a separate box-score realization used for player lines and stress testing.

Full Prediction Process

Process LayerWhat It DoesStored FieldObserved Value
1. Historical modelStarts from trained game model output.score_evolution.steps[historical_ml]-
2. Variance layerApplies bounded game variance before enhanced corrections.score_evolution.steps[variance_applied]-
3. Recent/team formUses latest team form, recent scoring, prevention, and streak state.enhanced_prediction_analysis.recent_formTrue
4. Season qualityUses season run differential and record quality guardrails.season_run_differential_adjustment, season_quality_guardrailTrue
5. Savant hittersApplies lineup-level Statcast xwOBA, xBA, xSLG, barrel, hard-hit, sweet-spot, EV, launch-angle, whiff, K and BB quality.savant_batter_quality_adjustmentTrue
6. Savant pitchersApplies starter run prevention, strikeout, walk, HR and regression factors from xwOBA, wOBA, contact quality and whiff/command.savant_pitcher_quality_adjustmentTrue
7. Low-score analysisControls unrealistic totals and preserves the pre-sync low-score expected total.low_score_analysis9.7000
8. Probability/governorsApplies win probability calibration, matchup guardrails, margin governor and confidence governor.win_probability_calibration, margin_governor, confidence_governor0.5252
9. Simulation reconciliationKeeps final shipped score and simulation box score auditable side by side.simulation_reconciliationadvisory_box_score_draw
10. Score evolution rendered6 stored score steps are rendered below.game.score_evolution.stepstrue

Score Evolution Steps

StepLayerAway RunsHome RunsConfidenceDescription
1historical_ml5.7325.200-Base ML historical model prediction
2variance_applied66-Random variance applied (0.9-1.1)
3enhanced_prediction450.5252Enhanced ML with recent form, H2H, low-score analysis
4embedded_savant_run_environment45-Target score adjusted by temporal Savant lineup quality versus opposing starter quality
5capped_target45-Capped at max 12 realistic runs
6simulation_result45-Final inning-by-inning simulation result

Governors, Guardrails, and Reconciliation

Low Score Analysis
{
  "low_score_probability": 0.44361156069364166,
  "base_low_score_probability": 0.4161849710982659,
  "low_score_signal_threshold": 0.5,
  "low_score_signal_strength": 0.02742658959537575,
  "confidence": 0.63295,
  "factors": {
    "environmental": 0.969,
    "pitcher_form": 1.1,
    "team_form": 1.0,
    "situational": 1.0,
    "combined": 1.0659
  },
  "prediction": "normal_scoring",
  "expected_total_runs": 9,
  "pre_simulation_expected_total_runs": 9.7,
  "low_score_model_expected_total_runs": 9.7,
  "final_simulation_total_runs": 9,
  "score_source": "enhanced_prediction.pre_simulation_target"
}
Win Probability Calibration
{
  "method": "neutral_shrinkage_no_history",
  "sample_size": 0,
  "near_bucket_sample_size": 0,
  "medium_bucket_sample_size": 0,
  "wide_bucket_sample_size": 0,
  "global_sample_size": 0,
  "bucket_scope": "none",
  "sparse_bucket": false,
  "raw_pick_probability": 0.5335,
  "calibrated_pick_probability": 0.5252,
  "predicted_side": "home"
}
Season Run Differential Adjustment
{
  "applied": true,
  "home": {
    "team": "ATL",
    "games": 74,
    "wins": 46,
    "losses": 28,
    "win_pct": 0.6216216216216216,
    "runs_scored": 368,
    "runs_allowed": 273,
    "run_differential": 95,
    "run_differential_per_game": 1.2837837837837838,
    "available": true
  },
  "away": {
    "team": "SF",
    "games": 75,
    "wins": 32,
    "losses": 43,
    "win_pct": 0.4266666666666667,
    "runs_scored": 317,
    "runs_allowed": 361,
    "run_differential": -44,
    "run_differential_per_game": -0.5866666666666667,
    "available": true
  },
  "run_differential_edge_per_game": 1.8705,
  "win_pct_edge": 0.195,
  "quality_edge": 2.1629,
  "margin_adjustment": 0.9084,
  "reason": "season-to-date run differential and record moved the score toward the stronger team",
  "adjusted_score": {
    "away_runs": 4.035,
    "home_runs": 4.43,
    "home_win_probability": 0.5335
  }
}
Matchup Recency Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "predicted_team": "ATL",
    "guardrail_predicted_team": "ATL",
    "guardrail_opponent_team": null,
    "output_pre_simulation_winner": "ATL",
    "output_opponent_team": "SF",
    "final_score_winner": "ATL",
    "pre_simulation_winner": "ATL",
    "winner_flipped_by_simulation": false
  },
  "final_prediction_sync": {
    "pre_simulation_score": {
      "away_runs": 4,
      "home_runs": 5,
      "score_text": "SF 4 - 5 ATL",
      "winner": "ATL"
    },
    "final_simulation_score": {
      "away_runs": 4,
      "home_runs": 5,
      "score_text": "SF 4 - 5 ATL",
      "winner": "ATL"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": 0,
    "home_run_delta": 0,
    "total_run_delta": 0,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}
Season Quality Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "home": {
      "team": "ATL",
      "games": 74,
      "wins": 46,
      "losses": 28,
      "win_pct": 0.6216216216216216,
      "runs_scored": 368,
      "runs_allowed": 273,
      "run_differential": 95,
      "run_differential_per_game": 1.2837837837837838,
      "available": true
    },
    "away": {
      "team": "SF",
      "games": 75,
      "wins": 32,
      "losses": 43,
      "win_pct": 0.4266666666666667,
      "runs_scored": 317,
      "runs_allowed": 361,
      "run_differential": -44,
      "run_differential_per_game": -0.5866666666666667,
      "available": true
    }
  }
}
Margin Governor
{
  "applied": false,
  "raw_margin": 0.3945,
  "final_margin": 0.3945,
  "margin_cap": 4.25,
  "season_quality_edge": 2.1629,
  "reason": "raw target margin within supported range"
}
Confidence Governor
{
  "applied": false,
  "raw_confidence": 0.525151,
  "final_confidence": 0.525151,
  "confidence_cap": 0.53,
  "score_gap": 0.3945,
  "calibration_sample_size": 0,
  "calibration_empirical_hit_rate": 0.5,
  "calibration_bayesian_hit_rate": 0.5,
  "calibration_sparse_bucket": false,
  "season_quality_edge": 2.1629,
  "reasons": [
    "unvalidated probabilities are capped for production display",
    "projected score gap is close",
    "season run-differential edge supports the pick",
    "historical confidence bucket is sparse"
  ]
}
Simulation Reconciliation
{
  "pre_simulation_score": {
    "away_runs": 4,
    "home_runs": 5,
    "score_text": "SF 4 - 5 ATL",
    "winner": "ATL"
  },
  "final_simulation_score": {
    "away_runs": 4,
    "home_runs": 5,
    "score_text": "SF 4 - 5 ATL",
    "winner": "ATL"
  },
  "winner_flipped_by_simulation": false,
  "away_run_delta": 0,
  "home_run_delta": 0,
  "total_run_delta": 0,
  "score_source": "enhanced_prediction.pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "final_prediction_source": "pre_simulation_target"
}
Enhanced Prediction Target
{
  "away_runs": 4,
  "home_runs": 5,
  "confidence": 0.525151,
  "home_win_probability": 0.525151,
  "away_win_probability": 0.47484899999999997,
  "predicted_score_text": "SF 4 - 5 ATL",
  "embedded_savant_score_adjustment": {
    "applied": true,
    "source": "all_players_stats.csv embedded temporal Savant features",
    "feature_contract": {
      "training_grain": "one player-game row after collapsing granular at-bat rows",
      "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game",
      "hitter_signals": [
        "xwoba",
        "xba",
        "xslg",
        "barrel_batted_rate",
        "hard_hit_percent",
        "bat_speed",
        "launch_quality",
        "walk_rate",
        "strikeout_rate"
      ],
      "pitcher_signals": [
        "xwoba_allowed",
        "barrel_allowed",
        "hard_hit_allowed",
        "whiff_rate",
        "command_score",
        "movement_score",
        "faced_est_woba",
        "faced_strikeout_rate"
      ]
    },
    "away": {
      "team": "SF",
      "original_runs": 4,
      "run_delta": 0.0835,
      "adjusted_runs": 4,
      "lineup": {
        "players_used": 9,
        "total_weight": 33.0,
        "quality": -0.06064327975080765,
        "contact": 0.10338410309602089,
        "power": -0.046012086029827926,
        "discipline": -0.05737749613562915,
        "xwoba": 0.31566666666666665,
        "recent_xwoba": 0.31566666666666665,
        "barrel": 6.787878787878788,
        "ab_hard_contact": -0.39758659794144374,
        "ab_bat_speed": 69.26120522362923,
        "ab_strikeout_rate": 0.20952557975932262,
        "available_players": 9,
        "top_players": [
          {
            "player_id": "805811",
            "player_name": "Bryce Eldridge",
            "position": "DH_805811",
            "weight": 3.0,
            "quality": 0.28815933318682807,
            "contact": 1.6856318271672772,
            "power": 1.6328908697249118,
            "discipline": 0.6163861788617886,
            "xwoba": 0.403,
            "recent_xwoba": 0.403,
            "barrel": 13.6,
            "ab_hard_contact": -0.3330397483589036,
            "ab_bat_speed": 73.21211734693877,
            "ab_strikeout_rate": 0.30357142857142855,
            "available": 1.0
          },
          {
            "player_id": "687551",
            "player_name": "Drew Gilbert",
            "position": "DH_687551",
            "weight": 3.0,
            "quality": -0.3897778482953905,
            "contact": -0.8036071574265595,
            "power": -1.1094671504111724,
            "discipline": 0.03696180911388956,
            "xwoba": 0.278,
            "recent_xwoba": 0.278,
            "barrel": 2.6,
            "ab_hard_contact": -1.3523906272710744,
            "ab_bat_speed": 67.10556862745098,
            "ab_strikeout_rate": 0.20735294117647057,
            "available": 1.0
          },
          {
            "player_id": "669477",
            "player_name": "Casey Schmitt",
            "position": "DH_669477",
            "weight": 4.0,
            "quality": 0.40858981192312244,
            "contact": 0.5874132950761793,
            "power": 0.8371345851475874,
            "discipline": -0.6357266575771346,
            "xwoba": 0.344,
            "recent_xwoba": 0.344,
            "barrel": 11.8,
            "ab_hard_contact": -0.08587972561968006,
            "ab_bat_speed": 70.20570686680469,
            "ab_strikeout_rate": 0.2028985507246377,
            "available": 1.0
          },
          {
            "player_id": "650333",
            "player_name": "Luis Arraez",
            "position": "DH_650333",
            "weight": 4.0,
            "quality": -0.31844241851902844,
            "contact": 0.09332466633627913,
            "power": -0.9545259830265408,
            "discipline": 0.7260206326433012,
            "xwoba": 0.301,
            "recent_xwoba": 0.301,
            "barrel": 0.4000000000000001,
            "ab_hard_contact": -0.6482339462451288,
            "ab_bat_speed": 61.88162153750389,
            "ab_strikeout_rate": 0.03529411764705882,
            "available": 1.0
          },
          {
            "player_id": "656305",
            "player_name": "Matt Chapman",
            "position": "DH_656305",
            "weight": 4.0,
            "quality": -0.38597499720456335,
            "contact": -0.4483028032950275,
            "power": -0.4473098710800859,
            "discipline": 0.2978225915057485,
            "xwoba": 0.294,
            "recent_xwoba": 0.294,
            "barrel": 6.8,
            "ab_hard_contact": -0.5435307549350606,
            "ab_bat_speed": 74.09591194968554,
            "ab_strikeout_rate": 0.2362778730703259,
            "available": 1.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "527048",
        "player_name": "Martín Pérez",
        "quality": -0.138354643999007,
        "contact": 0.007426451974761604,
        "command": -0.17114285714285712,
        "movement": -1.0024210444520243,
        "xwoba": 0.314,
        "whiff": 22.5,
        "faced_est_woba": 0.267543125,
        "faced_launch_speed": 83.82962962962962,
        "faced_strikeout_rate": 0.23125,
        "faced_run_exp": 0.007916194341372912
      }
    },
    "home": {
      "team": "ATL",
      "original_runs": 5,
      "run_delta": 0.1738,
      "adjusted_runs": 5,
      "lineup": {
        "players_used": 9,
        "total_weight": 33.0,
        "quality": 0.4106946369399674,
        "contact": 0.34356885900238604,
        "power": 0.43199998569077713,
        "discipline": 0.006038131517883068,
        "xwoba": 0.3305757575757575,
        "recent_xwoba": 0.3305757575757575,
        "barrel": 9.584848484848484,
        "ab_hard_contact": 0.6242327534147385,
        "ab_bat_speed": 70.96953762734606,
        "ab_strikeout_rate": 0.2179735884694467,
        "available_players": 9,
        "top_players": [
          {
            "player_id": "686948",
            "player_name": "Drake Baldwin",
            "position": "DH_686948",
            "weight": 4.0,
            "quality": 1.520121502114366,
            "contact": 1.6522128197268011,
            "power": 2.0,
            "discipline": 0.2863841947348045,
            "xwoba": 0.41,
            "recent_xwoba": 0.41,
            "barrel": 18.7,
            "ab_hard_contact": 1.6678273385981528,
            "ab_bat_speed": 73.73786871693122,
            "ab_strikeout_rate": 0.20243055555555556,
            "available": 1.0
          },
          {
            "player_id": "671739",
            "player_name": "Michael Harris II",
            "position": "DH_671739",
            "weight": 4.0,
            "quality": 1.1653517430583513,
            "contact": 1.5420916733211236,
            "power": 1.7443581310438065,
            "discipline": -0.5160423925667827,
            "xwoba": 0.384,
            "recent_xwoba": 0.384,
            "barrel": 15.0,
            "ab_hard_contact": 1.538210239923747,
            "ab_bat_speed": 73.9240186965812,
            "ab_strikeout_rate": 0.2,
            "available": 1.0
          },
          {
            "player_id": "621566",
            "player_name": "Matt Olson",
            "position": "DH_621566",
            "weight": 4.0,
            "quality": 1.175561627598744,
            "contact": 1.1533473922902493,
            "power": 1.7113069489233195,
            "discipline": 0.07105284552845528,
            "xwoba": 0.37,
            "recent_xwoba": 0.37,
            "barrel": 14.4,
            "ab_hard_contact": 1.649186597514006,
            "ab_bat_speed": 73.18710813492063,
            "ab_strikeout_rate": 0.23154761904761906,
            "available": 1.0
          },
          {
            "player_id": "673490",
            "player_name": "Ha-Seong Kim",
            "position": "DH_673490",
            "weight": 3.0,
            "quality": -0.28012943466940504,
            "contact": -1.975471758150183,
            "power": -1.7478147500764176,
            "discipline": 0.2886242740998839,
            "xwoba": 0.213,
            "recent_xwoba": 0.213,
            "barrel": 2.4,
            "ab_hard_contact": -0.3429616681950199,
            "ab_bat_speed": 70.90607638888889,
            "ab_strikeout_rate": 0.2833333333333333,
            "available": 1.0
          },
          {
            "player_id": "573262",
            "player_name": "Mike Yastrzemski",
            "position": "DH_573262",
            "weight": 3.0,
            "quality": -0.2163316769839044,
            "contact": -0.2575368886065321,
            "power": -0.5175620764267288,
            "discipline": -0.02155032907471928,
            "xwoba": 0.287,
            "recent_xwoba": 0.287,
            "barrel": 3.8,
            "ab_hard_contact": 0.26513942384637074,
            "ab_bat_speed": 68.96588831018518,
            "ab_strikeout_rate": 0.2722222222222222,
            "available": 1.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "694738",
        "player_name": "Landen Roupp",
        "quality": 0.3083927259290661,
        "contact": 0.4922372040327781,
        "command": 0.22957142857142845,
        "movement": -0.34295671443570264,
        "xwoba": 0.289,
        "whiff": 26.2,
        "faced_est_woba": 0.267543125,
        "faced_launch_speed": 83.82962962962962,
        "faced_strikeout_rate": 0.23125,
        "faced_run_exp": 0.007916194341372912
      }
    }
  },
  "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Production confidence governor cap enforced.",
  "pre_simulation_target": {
    "away_runs": 4,
    "home_runs": 5,
    "predicted_score_text": "SF 4 - 5 ATL",
    "confidence": 0.525151,
    "source": "enhanced_prediction_before_inning_simulation"
  },
  "score_source": "enhanced_prediction.pre_simulation_target",
  "final_prediction_synced": true,
  "final_prediction_source": "pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "simulation_score_matches_prediction": true,
  "simulation_reconciliation": {
    "pre_simulation_score": {
      "away_runs": 4,
      "home_runs": 5,
      "score_text": "SF 4 - 5 ATL",
      "winner": "ATL"
    },
    "final_simulation_score": {
      "away_runs": 4,
      "home_runs": 5,
      "score_text": "SF 4 - 5 ATL",
      "winner": "ATL"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": 0,
    "home_run_delta": 0,
    "total_run_delta": 0,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}

Savant Batter Quality

Source: data/all_players_stats.csv embedded Savant hitter features. It adjusts team offense through expected production and contact quality, then records coverage so missing hitters are visible.

TeamAppliedOffense FactorRaw Avg FactorCoverage WeightCoveredMissing
Away SFTrue1.00621.0062190
Home ATLTrue1.03661.0366190

Away Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
DHRafael Devers2171.00370.0495neutral0.29500.21900.40009.3049.2091.9013.603130.107.90-0.6286
DH_642715Willy Adames1131.00380.0512neutral0.29500.22300.40909.8043.408922.5027.9027.405.50-0.3429
DH_650333Luis Arraez240.9744-0.3414negative_batter_regression0.30100.28700.36900.4022.2087.4014.808.804.105.10-1.4000
DH_687551Drew Gilbert3440.9751-0.3322neutral0.27800.22500.31002.6032.8085.2014.9024.8019.408.50-0.4286
DH_656305Matt Chapman170.9688-0.4158negative_batter_regression0.29400.21900.33506.8036.8088.2010.2022.3020.7010.40-0.9429
DH_691740Daniel Susac1910.9959-0.0545neutral0.30600.26900.36104.2029.2086.2016.1024.9021.605.90-0.2571
DH_808982Jung Hoo Lee1241.02200.2939neutral0.33500.31600.40902.6030.4087.7010.9012.209.304.10-0.4857
DH_669477Casey Schmitt1231.05480.7312neutral0.34400.28200.491011.8041.5089.1020.9022.3019.902.50-0.2571
DH_805811Bryce Eldridge1111.05720.7620neutral0.40300.30200.555013.6056.8091.8013.2021.2019.8013-0.2857

Home Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
DHOzzie Albies410.9920-0.1062neutral0.31000.25900.38904.5028.8087.1016.6020.1012.107-0.6571
DH_673490Ha-Seong Kim5560.9495-0.6738positive_batter_regression0.21300.15400.19902.4020.9084.6014.6019.3024.2010.602
DH_621566Matt Olson101.10171.3562neutral0.37000.26100.533014.4052.3093.5018.402522.709.70-0.3429
DH_671739Michael Harris II341.11031.4710neutral0.38400.30800.55001551.5092.3011.5026.4020.104.600.4000
DH_663586Austin Riley2331.01440.1926neutral0.30200.21200.390010.4045.1091.2019.4032.1028.508.400.3429
DH_686948Drake Baldwin351.13851.8460neutral0.41000.29700.580018.7052.7092.5011.4023.6021.7010.600.3429
DH_573262Mike Yastrzemski2520.9815-0.2462neutral0.28700.22500.31403.8041.4090.5015.9024.8024.509.60-0.3143
DH_643289Mauricio Dubón741.01580.2107neutral0.32200.27000.40706.1028.6086.6015.8017.1015.206.900.0857
DH_642086Dominic Smith2011.02540.3382neutral0.33900.28400.44807.1035.9088.8014.9019.2013.105.700.3714
Raw Savant Batter Quality JSON
{
  "home": {
    "applied": true,
    "offense_factor": 1.0366,
    "raw_average_factor": 1.0366,
    "team_espn_average_rank": 159.56,
    "coverage_weight": 1.0,
    "covered_batters": 9,
    "missing_batters": 0,
    "players": [
      {
        "position": "DH",
        "player_id": "645277",
        "player_name": "Ozzie Albies",
        "offense_factor": 0.992,
        "quality_score": -0.1062,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "645277",
          "espn_id": 33783,
          "player_name": "Ozzie Albies",
          "team": "ATL",
          "role": "batter",
          "espn_rank": 41,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 41,
            "gp_value": 73.0,
            "gp_rank": 26,
            "ab_value": 281.0,
            "ab_rank": 22,
            "r_value": 46.0,
            "r_rank": 21,
            "h_value": 78.0,
            "h_rank": 16,
            "avg_value": 0.27758,
            "avg_rank": 40.0,
            "2b_value": 13.0,
            "2b_rank": 61,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 10.0,
            "hr_rank": 69,
            "rbi_value": 37.0,
            "rbi_rank": 54,
            "tb_value": 121.0,
            "tb_rank": 672,
            "bb_value": 22.0,
            "bb_rank": 123,
            "so_value": 38.0,
            "so_rank": 208,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3312101,
            "obp_rank": "84",
            "slg_value": 0.4306049,
            "slg_rank": "72",
            "ops_value": 0.761815,
            "ops_rank": 156.0,
            "war_value": 2.19,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 242.0,
          "k_percent": 12.1,
          "bb_percent": 7.0,
          "woba": 0.333,
          "xwoba": 0.31,
          "xba": 0.259,
          "xslg": 0.389,
          "sweet_spot_percent": 34.4,
          "barrel_batted_rate": 4.5,
          "hard_hit_percent": 28.8,
          "exit_velocity_avg": 87.1,
          "launch_angle_avg": 16.6,
          "whiff_percent": 20.1,
          "swing_percent": 54.7
        },
        "components": {
          "expected_quality": -0.0165,
          "regression_edge": -0.6571,
          "xwoba_edge": 0.1714,
          "xba_edge": 0.5857,
          "xslg_edge": 0.2429,
          "barrel_edge": -0.5111,
          "hard_hit_edge": -1.3857,
          "exit_velocity_edge": -0.68,
          "sweet_spot_edge": 0.1833,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "DH_673490",
        "player_id": "673490",
        "player_name": "Ha-Seong Kim",
        "offense_factor": 0.9495,
        "quality_score": -0.6738,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "673490",
          "espn_id": 4089862,
          "player_name": "Ha-Seong Kim",
          "team": "ATL",
          "role": "batter",
          "espn_rank": 556,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 556,
            "gp_value": 19.0,
            "gp_rank": 419,
            "ab_value": 59.0,
            "ab_rank": 395,
            "r_value": 4.0,
            "r_rank": 435,
            "h_value": 5.0,
            "h_rank": 471,
            "avg_value": 0.0847457,
            "avg_rank": null,
            "2b_value": 0.0,
            "2b_rank": 486,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 0.0,
            "hr_rank": 441,
            "rbi_value": 3.0,
            "rbi_rank": 447,
            "tb_value": 5.0,
            "tb_rank": 2668,
            "bb_value": 7.0,
            "bb_rank": 333,
            "so_value": 16.0,
            "so_rank": 393,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.1818181,
            "obp_rank": "-",
            "slg_value": 0.0847457,
            "slg_rank": "-",
            "ops_value": 0.2665638,
            "ops_rank": null,
            "war_value": -0.82,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 45.0,
          "k_percent": 24.2,
          "bb_percent": 10.6,
          "woba": 0.142,
          "xwoba": 0.213,
          "xba": 0.154,
          "xslg": 0.199,
          "sweet_spot_percent": 16.3,
          "barrel_batted_rate": 2.4,
          "hard_hit_percent": 20.9,
          "exit_velocity_avg": 84.6,
          "launch_angle_avg": 14.6,
          "whiff_percent": 19.3,
          "swing_percent": 43.6
        },
        "components": {
          "expected_quality": -2.0666,
          "regression_edge": 2.0,
          "xwoba_edge": -2.5,
          "xba_edge": -2.4143,
          "xslg_edge": -2.4714,
          "barrel_edge": -0.9778,
          "hard_hit_edge": -2.5,
          "exit_velocity_edge": -1.68,
          "sweet_spot_edge": -2.5,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "DH_621566",
        "player_id": "621566",
        "player_name": "Matt Olson",
        "offense_factor": 1.1017,
        "quality_score": 1.3562,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "621566",
          "espn_id": 32767,
          "player_name": "Matt Olson",
          "team": "ATL",
          "role": "batter",
          "espn_rank": 10,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 10,
            "gp_value": 73.0,
            "gp_rank": 26,
            "ab_value": 286.0,
            "ab_rank": 14,
            "r_value": 52.0,
            "r_rank": 6,
            "h_value": 79.0,
            "h_rank": 12,
            "avg_value": 0.2762237,
            "avg_rank": 45.0,
            "2b_value": 19.0,
            "2b_rank": 4,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 20.0,
            "hr_rank": 5,
            "rbi_value": 51.0,
            "rbi_rank": 9,
            "tb_value": 158.0,
            "tb_rank": 419,
            "bb_value": 31.0,
            "bb_rank": 55,
            "so_value": 73.0,
            "so_rank": 38,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.3457943,
            "obp_rank": "61",
            "slg_value": 0.5524475,
            "slg_rank": "8",
            "ops_value": 0.8982418,
            "ops_rank": 53.0,
            "war_value": 3.18,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 244.0,
          "k_percent": 22.7,
          "bb_percent": 9.7,
          "woba": 0.382,
          "xwoba": 0.37,
          "xba": 0.261,
          "xslg": 0.533,
          "sweet_spot_percent": 32.4,
          "barrel_batted_rate": 14.4,
          "hard_hit_percent": 52.3,
          "exit_velocity_avg": 93.5,
          "launch_angle_avg": 18.4,
          "whiff_percent": 25.0,
          "swing_percent": 46.0
        },
        "components": {
          "expected_quality": 1.6328,
          "regression_edge": -0.3429,
          "xwoba_edge": 1.8857,
          "xba_edge": 0.6429,
          "xslg_edge": 2.3,
          "barrel_edge": 1.6889,
          "hard_hit_edge": 1.9714,
          "exit_velocity_edge": 1.88,
          "sweet_spot_edge": -0.15,
          "launch_angle_hr_bonus": 0.45
        }
      },
      {
        "position": "DH_671739",
        "player_id": "671739",
        "player_name": "Michael Harris II",
        "offense_factor": 1.1103,
        "quality_score": 1.471,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "671739",
          "espn_id": 42470,
          "player_name": "Michael Harris II",
          "team": "ATL",
          "role": "batter",
          "espn_rank": 34,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 34,
            "gp_value": 68.0,
            "gp_rank": 104,
            "ab_value": 245.0,
            "ab_rank": 99,
            "r_value": 35.0,
            "r_rank": 73,
            "h_value": 75.0,
            "h_rank": 31,
            "avg_value": 0.3061224,
            "avg_rank": 8.0,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 14.0,
            "hr_rank": 33,
            "rbi_value": 41.0,
            "rbi_rank": 36,
            "tb_value": 126.0,
            "tb_rank": 672,
            "bb_value": 12.0,
            "bb_rank": 253,
            "so_value": 52.0,
            "so_rank": 126,
            "sb_value": 3.0,
            "sb_rank": 148,
            "obp_value": 0.3397683,
            "obp_rank": "72",
            "slg_value": 0.5142857,
            "slg_rank": "20",
            "ops_value": 0.854054,
            "ops_rank": 52.0,
            "war_value": 2.35,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 195.0,
          "k_percent": 20.1,
          "bb_percent": 4.6,
          "woba": 0.37,
          "xwoba": 0.384,
          "xba": 0.308,
          "xslg": 0.55,
          "sweet_spot_percent": 30.9,
          "barrel_batted_rate": 15.0,
          "hard_hit_percent": 51.5,
          "exit_velocity_avg": 92.3,
          "launch_angle_avg": 11.5,
          "whiff_percent": 26.4,
          "swing_percent": 55.4
        },
        "components": {
          "expected_quality": 1.8646,
          "regression_edge": 0.4,
          "xwoba_edge": 2.2857,
          "xba_edge": 1.9857,
          "xslg_edge": 2.5,
          "barrel_edge": 1.8222,
          "hard_hit_edge": 1.8571,
          "exit_velocity_edge": 1.4,
          "sweet_spot_edge": -0.4,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "DH_663586",
        "player_id": "663586",
        "player_name": "Austin Riley",
        "offense_factor": 1.0144,
        "quality_score": 0.1926,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "663586",
          "espn_id": 34982,
          "player_name": "Austin Riley",
          "team": "ATL",
          "role": "batter",
          "espn_rank": 233,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 233,
            "gp_value": 73.0,
            "gp_rank": 26,
            "ab_value": 265.0,
            "ab_rank": 52,
            "r_value": 31.0,
            "r_rank": 109,
            "h_value": 56.0,
            "h_rank": 117,
            "avg_value": 0.2113207,
            "avg_rank": 150.0,
            "2b_value": 12.0,
            "2b_rank": 80,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 8.0,
            "hr_rank": 98,
            "rbi_value": 35.0,
            "rbi_rank": 73,
            "tb_value": 94.0,
            "tb_rank": 635,
            "bb_value": 25.0,
            "bb_rank": 90,
            "so_value": 85.0,
            "so_rank": 13,
            "sb_value": 4.0,
            "sb_rank": 124,
            "obp_value": 0.2919463,
            "obp_rank": "143",
            "slg_value": 0.3547169,
            "slg_rank": "135",
            "ops_value": 0.6466632,
            "ops_rank": 8.0,
            "war_value": 0.36,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 232.0,
          "k_percent": 28.5,
          "bb_percent": 8.4,
          "woba": 0.29,
          "xwoba": 0.302,
          "xba": 0.212,
          "xslg": 0.39,
          "sweet_spot_percent": 30.8,
          "barrel_batted_rate": 10.4,
          "hard_hit_percent": 45.1,
          "exit_velocity_avg": 91.2,
          "launch_angle_avg": 19.4,
          "whiff_percent": 32.1,
          "swing_percent": 46.8
        },
        "components": {
          "expected_quality": 0.1681,
          "regression_edge": 0.3429,
          "xwoba_edge": -0.0571,
          "xba_edge": -0.7571,
          "xslg_edge": 0.2571,
          "barrel_edge": 0.8,
          "hard_hit_edge": 0.9429,
          "exit_velocity_edge": 0.96,
          "sweet_spot_edge": -0.4167,
          "launch_angle_hr_bonus": 0.45
        }
      },
      {
        "position": "DH_686948",
        "player_id": "686948",
        "player_name": "Drake Baldwin",
        "offense_factor": 1.1385,
        "quality_score": 1.846,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "686948",
          "espn_id": 4810190,
          "player_name": "Drake Baldwin",
          "team": "ATL",
          "role": "batter",
          "espn_rank": 35,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 35,
            "gp_value": 50.0,
            "gp_rank": 239,
            "ab_value": 198.0,
            "ab_rank": 160,
            "r_value": 41.0,
            "r_rank": 46,
            "h_value": 59.0,
            "h_rank": 103,
            "avg_value": 0.2979797,
            "avg_rank": 10.0,
            "2b_value": 6.0,
            "2b_rank": 235,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 14.0,
            "hr_rank": 33,
            "rbi_value": 39.0,
            "rbi_rank": 46,
            "tb_value": 107.0,
            "tb_rank": 825,
            "bb_value": 24.0,
            "bb_rank": 100,
            "so_value": 49.0,
            "so_rank": 143,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3805309,
            "obp_rank": "16",
            "slg_value": 0.540404,
            "slg_rank": "12",
            "ops_value": 0.9209349,
            "ops_rank": 28.0,
            "war_value": 2.34,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 215.0,
          "k_percent": 21.7,
          "bb_percent": 10.6,
          "woba": 0.398,
          "xwoba": 0.41,
          "xba": 0.297,
          "xslg": 0.58,
          "sweet_spot_percent": 41.3,
          "barrel_batted_rate": 18.7,
          "hard_hit_percent": 52.7,
          "exit_velocity_avg": 92.5,
          "launch_angle_avg": 11.4,
          "whiff_percent": 23.6,
          "swing_percent": 50.6
        },
        "components": {
          "expected_quality": 2.1406,
          "regression_edge": 0.3429,
          "xwoba_edge": 2.5,
          "xba_edge": 1.6714,
          "xslg_edge": 2.5,
          "barrel_edge": 2.5,
          "hard_hit_edge": 2.0286,
          "exit_velocity_edge": 1.48,
          "sweet_spot_edge": 1.3333,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "DH_573262",
        "player_id": "573262",
        "player_name": "Mike Yastrzemski",
        "offense_factor": 0.9815,
        "quality_score": -0.2462,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "573262",
          "espn_id": 33341,
          "player_name": "Mike Yastrzemski",
          "team": "ATL",
          "role": "batter",
          "espn_rank": 252,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 252,
            "gp_value": 67.0,
            "gp_rank": 117,
            "ab_value": 184.0,
            "ab_rank": 180,
            "r_value": 26.0,
            "r_rank": 158,
            "h_value": 42.0,
            "h_rank": 193,
            "avg_value": 0.2282608,
            "avg_rank": null,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 3.0,
            "hr_rank": 243,
            "rbi_value": 18.0,
            "rbi_rank": 231,
            "tb_value": 62.0,
            "tb_rank": 1220,
            "bb_value": 20.0,
            "bb_rank": 146,
            "so_value": 51.0,
            "so_rank": 129,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3173076,
            "obp_rank": "-",
            "slg_value": 0.3369565,
            "slg_rank": "-",
            "ops_value": 0.6542641,
            "ops_rank": null,
            "war_value": 0.27,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 151.0,
          "k_percent": 24.5,
          "bb_percent": 9.6,
          "woba": 0.298,
          "xwoba": 0.287,
          "xba": 0.225,
          "xslg": 0.314,
          "sweet_spot_percent": 30.1,
          "barrel_batted_rate": 3.8,
          "hard_hit_percent": 41.4,
          "exit_velocity_avg": 90.5,
          "launch_angle_avg": 15.9,
          "whiff_percent": 24.8,
          "swing_percent": 41.5
        },
        "components": {
          "expected_quality": -0.366,
          "regression_edge": -0.3143,
          "xwoba_edge": -0.4857,
          "xba_edge": -0.3857,
          "xslg_edge": -0.8286,
          "barrel_edge": -0.6667,
          "hard_hit_edge": 0.4143,
          "exit_velocity_edge": 0.68,
          "sweet_spot_edge": -0.5333,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "DH_643289",
        "player_id": "643289",
        "player_name": "Mauricio Dubón",
        "offense_factor": 1.0158,
        "quality_score": 0.2107,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "643289",
          "espn_id": 35304,
          "player_name": "Mauricio Dubon",
          "team": "ATL",
          "role": "batter",
          "espn_rank": 74,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 74,
            "gp_value": 69.0,
            "gp_rank": 83,
            "ab_value": 255.0,
            "ab_rank": 78,
            "r_value": 29.0,
            "r_rank": 128,
            "h_value": 66.0,
            "h_rank": 67,
            "avg_value": 0.2588235,
            "avg_rank": 67.0,
            "2b_value": 13.0,
            "2b_rank": 61,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 40.0,
            "rbi_rank": 41,
            "tb_value": 104.0,
            "tb_rank": 519,
            "bb_value": 19.0,
            "bb_rank": 161,
            "so_value": 42.0,
            "so_rank": 178,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3152173,
            "obp_rank": "107",
            "slg_value": 0.4078431,
            "slg_rank": "93",
            "ops_value": 0.7230604,
            "ops_rank": 200.0,
            "war_value": 1.61,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 213.0,
          "k_percent": 15.2,
          "bb_percent": 6.9,
          "woba": 0.319,
          "xwoba": 0.322,
          "xba": 0.27,
          "xslg": 0.407,
          "sweet_spot_percent": 38.5,
          "barrel_batted_rate": 6.1,
          "hard_hit_percent": 28.6,
          "exit_velocity_avg": 86.6,
          "launch_angle_avg": 15.8,
          "whiff_percent": 17.1,
          "swing_percent": 51.7
        },
        "components": {
          "expected_quality": 0.2392,
          "regression_edge": 0.0857,
          "xwoba_edge": 0.5143,
          "xba_edge": 0.9,
          "xslg_edge": 0.5,
          "barrel_edge": -0.1556,
          "hard_hit_edge": -1.4143,
          "exit_velocity_edge": -0.88,
          "sweet_spot_edge": 0.8667,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "DH_642086",
        "player_id": "642086",
        "player_name": "Dominic Smith",
        "offense_factor": 1.0254,
        "quality_score": 0.3382,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "642086",
          "espn_id": 33218,
          "player_name": "Dominic Smith",
          "team": "ATL",
          "role": "batter",
          "espn_rank": 201,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 201,
            "gp_value": 60.0,
            "gp_rank": 174,
            "ab_value": 159.0,
            "ab_rank": 226,
            "r_value": 25.0,
            "r_rank": 167,
            "h_value": 45.0,
            "h_rank": 177,
            "avg_value": 0.2830188,
            "avg_rank": null,
            "2b_value": 4.0,
            "2b_rank": 307,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 6.0,
            "hr_rank": 156,
            "rbi_value": 31.0,
            "rbi_rank": 104,
            "tb_value": 69.0,
            "tb_rank": 1096,
            "bb_value": 10.0,
            "bb_rank": 282,
            "so_value": 23.0,
            "so_rank": 322,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.32,
            "obp_rank": "-",
            "slg_value": 0.4339622,
            "slg_rank": "-",
            "ops_value": 0.7539622,
            "ops_rank": null,
            "war_value": 0.53,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 116.0,
          "k_percent": 13.1,
          "bb_percent": 5.7,
          "woba": 0.326,
          "xwoba": 0.339,
          "xba": 0.284,
          "xslg": 0.448,
          "sweet_spot_percent": 35.9,
          "barrel_batted_rate": 7.1,
          "hard_hit_percent": 35.9,
          "exit_velocity_avg": 88.8,
          "launch_angle_avg": 14.9,
          "whiff_percent": 19.2,
          "swing_percent": 52.8
        },
        "components": {
          "expected_quality": 0.6853,
          "regression_edge": 0.3714,
          "xwoba_edge": 1.0,
          "xba_edge": 1.3,
          "xslg_edge": 1.0857,
          "barrel_edge": 0.0667,
          "hard_hit_edge": -0.3714,
          "exit_velocity_edge": 0.0,
          "sweet_spot_edge": 0.4333,
          "launch_angle_hr_bonus": 0.0
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "away": {
    "applied": true,
    "offense_factor": 1.0062,
    "raw_average_factor": 1.0062,
    "team_espn_average_rank": 140.44,
    "coverage_weight": 1.0,
    "covered_batters": 9,
    "missing_batters": 0,
    "players": [
      {
        "position": "DH",
        "player_id": "646240",
        "player_name": "Rafael Devers",
        "offense_factor": 1.0037,
        "quality_score": 0.0495,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "646240",
          "espn_id": 33859,
          "player_name": "Rafael Devers",
          "team": "SF",
          "role": "batter",
          "espn_rank": 217,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 217,
            "gp_value": 74.0,
            "gp_rank": 13,
            "ab_value": 288.0,
            "ab_rank": 11,
            "r_value": 34.0,
            "r_rank": 83,
            "h_value": 69.0,
            "h_rank": 55,
            "avg_value": 0.2395833,
            "avg_rank": 105.0,
            "2b_value": 23.0,
            "2b_rank": 1,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 10.0,
            "hr_rank": 69,
            "rbi_value": 35.0,
            "rbi_rank": 73,
            "tb_value": 124.0,
            "tb_rank": 405,
            "bb_value": 25.0,
            "bb_rank": 90,
            "so_value": 95.0,
            "so_rank": 9,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3006329,
            "obp_rank": "133",
            "slg_value": 0.4305555,
            "slg_rank": "72",
            "ops_value": 0.7311884,
            "ops_rank": 61.0,
            "war_value": 0.45,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 223.0,
          "k_percent": 30.1,
          "bb_percent": 7.9,
          "woba": 0.317,
          "xwoba": 0.295,
          "xba": 0.219,
          "xslg": 0.4,
          "sweet_spot_percent": 31.8,
          "barrel_batted_rate": 9.3,
          "hard_hit_percent": 49.2,
          "exit_velocity_avg": 91.9,
          "launch_angle_avg": 13.6,
          "whiff_percent": 31.0,
          "swing_percent": 49.6
        },
        "components": {
          "expected_quality": 0.1599,
          "regression_edge": -0.6286,
          "xwoba_edge": -0.2571,
          "xba_edge": -0.5571,
          "xslg_edge": 0.4,
          "barrel_edge": 0.5556,
          "hard_hit_edge": 1.5286,
          "exit_velocity_edge": 1.24,
          "sweet_spot_edge": -0.25,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "DH_642715",
        "player_id": "642715",
        "player_name": "Willy Adames",
        "offense_factor": 1.0038,
        "quality_score": 0.0512,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "642715",
          "espn_id": 33675,
          "player_name": "Willy Adames",
          "team": "SF",
          "role": "batter",
          "espn_rank": 113,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 113,
            "gp_value": 72.0,
            "gp_rank": 37,
            "ab_value": 288.0,
            "ab_rank": 11,
            "r_value": 36.0,
            "r_rank": 68,
            "h_value": 66.0,
            "h_rank": 67,
            "avg_value": 0.2291666,
            "avg_rank": 129.0,
            "2b_value": 18.0,
            "2b_rank": 8,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 13.0,
            "hr_rank": 39,
            "rbi_value": 31.0,
            "rbi_rank": 104,
            "tb_value": 125.0,
            "tb_rank": 336,
            "bb_value": 17.0,
            "bb_rank": 181,
            "so_value": 84.0,
            "so_rank": 15,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.2736156,
            "obp_rank": "156",
            "slg_value": 0.4340277,
            "slg_rank": "69",
            "ops_value": 0.7076433,
            "ops_rank": 87.0,
            "war_value": 1.14,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 228.0,
          "k_percent": 27.4,
          "bb_percent": 5.5,
          "woba": 0.307,
          "xwoba": 0.295,
          "xba": 0.223,
          "xslg": 0.409,
          "sweet_spot_percent": 37.6,
          "barrel_batted_rate": 9.8,
          "hard_hit_percent": 43.4,
          "exit_velocity_avg": 89.0,
          "launch_angle_avg": 22.5,
          "whiff_percent": 27.9,
          "swing_percent": 48.1
        },
        "components": {
          "expected_quality": 0.1154,
          "regression_edge": -0.3429,
          "xwoba_edge": -0.2571,
          "xba_edge": -0.4429,
          "xslg_edge": 0.5286,
          "barrel_edge": 0.6667,
          "hard_hit_edge": 0.7,
          "exit_velocity_edge": 0.08,
          "sweet_spot_edge": 0.7167,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "DH_650333",
        "player_id": "650333",
        "player_name": "Luis Arraez",
        "offense_factor": 0.9744,
        "quality_score": -0.3414,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "650333",
          "espn_id": 39572,
          "player_name": "Luis Arraez",
          "team": "SF",
          "role": "batter",
          "espn_rank": 24,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 24,
            "gp_value": 71.0,
            "gp_rank": 49,
            "ab_value": 285.0,
            "ab_rank": 15,
            "r_value": 39.0,
            "r_rank": 57,
            "h_value": 93.0,
            "h_rank": 2,
            "avg_value": 0.3263157,
            "avg_rank": 2.0,
            "2b_value": 15.0,
            "2b_rank": 27,
            "3b_value": 6.0,
            "3b_rank": 2,
            "hr_value": 3.0,
            "hr_rank": 243,
            "rbi_value": 30.0,
            "rbi_rank": 113,
            "tb_value": 129.0,
            "tb_rank": 750,
            "bb_value": 16.0,
            "bb_rank": 193,
            "so_value": 13.0,
            "so_rank": 418,
            "sb_value": 6.0,
            "sb_rank": 79,
            "obp_value": 0.3601286,
            "obp_rank": "41",
            "slg_value": 0.4526315,
            "slg_rank": "53",
            "ops_value": 0.8127601,
            "ops_rank": 12.0,
            "war_value": 2.62,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 215.0,
          "k_percent": 4.1,
          "bb_percent": 5.1,
          "woba": 0.35,
          "xwoba": 0.301,
          "xba": 0.287,
          "xslg": 0.369,
          "sweet_spot_percent": 40.5,
          "barrel_batted_rate": 0.4,
          "hard_hit_percent": 22.2,
          "exit_velocity_avg": 87.4,
          "launch_angle_avg": 14.8,
          "whiff_percent": 8.8,
          "swing_percent": 50.9
        },
        "components": {
          "expected_quality": -0.1783,
          "regression_edge": -1.4,
          "xwoba_edge": -0.0857,
          "xba_edge": 1.3857,
          "xslg_edge": -0.0429,
          "barrel_edge": -1.4222,
          "hard_hit_edge": -2.3286,
          "exit_velocity_edge": -0.56,
          "sweet_spot_edge": 1.2,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "DH_687551",
        "player_id": "687551",
        "player_name": "Drew Gilbert",
        "offense_factor": 0.9751,
        "quality_score": -0.3322,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "687551",
          "espn_id": 4619467,
          "player_name": "Drew Gilbert",
          "team": "SF",
          "role": "batter",
          "espn_rank": 344,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 344,
            "gp_value": 55.0,
            "gp_rank": 204,
            "ab_value": 146.0,
            "ab_rank": 245,
            "r_value": 18.0,
            "r_rank": 232,
            "h_value": 32.0,
            "h_rank": 255,
            "avg_value": 0.219178,
            "avg_rank": null,
            "2b_value": 7.0,
            "2b_rank": 206,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 3.0,
            "hr_rank": 243,
            "rbi_value": 14.0,
            "rbi_rank": 266,
            "tb_value": 52.0,
            "tb_rank": 1224,
            "bb_value": 14.0,
            "bb_rank": 215,
            "so_value": 32.0,
            "so_rank": 259,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3006134,
            "obp_rank": "-",
            "slg_value": 0.3561643,
            "slg_rank": "-",
            "ops_value": 0.6567777,
            "ops_rank": null,
            "war_value": 0.0,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 105.0,
          "k_percent": 19.4,
          "bb_percent": 8.5,
          "woba": 0.293,
          "xwoba": 0.278,
          "xba": 0.225,
          "xslg": 0.31,
          "sweet_spot_percent": 29.3,
          "barrel_batted_rate": 2.6,
          "hard_hit_percent": 32.8,
          "exit_velocity_avg": 85.2,
          "launch_angle_avg": 14.9,
          "whiff_percent": 24.8,
          "swing_percent": 42.0
        },
        "components": {
          "expected_quality": -0.7397,
          "regression_edge": -0.4286,
          "xwoba_edge": -0.7429,
          "xba_edge": -0.3857,
          "xslg_edge": -0.8857,
          "barrel_edge": -0.9333,
          "hard_hit_edge": -0.8143,
          "exit_velocity_edge": -1.44,
          "sweet_spot_edge": -0.6667,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "DH_656305",
        "player_id": "656305",
        "player_name": "Matt Chapman",
        "offense_factor": 0.9688,
        "quality_score": -0.4158,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "656305",
          "espn_id": 33857,
          "player_name": "Matt Chapman",
          "team": "SF",
          "role": "batter",
          "espn_rank": 17,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 17,
            "gp_value": 73.0,
            "gp_rank": 26,
            "ab_value": 270.0,
            "ab_rank": 37,
            "r_value": 35.0,
            "r_rank": 73,
            "h_value": 68.0,
            "h_rank": 61,
            "avg_value": 0.2518518,
            "avg_rank": 83.0,
            "2b_value": 17.0,
            "2b_rank": 12,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 41.0,
            "rbi_rank": 36,
            "tb_value": 108.0,
            "tb_rank": 574,
            "bb_value": 32.0,
            "bb_rank": 49,
            "so_value": 64.0,
            "so_rank": 69,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3365695,
            "obp_rank": "77",
            "slg_value": 0.4,
            "slg_rank": "105",
            "ops_value": 0.7365695,
            "ops_rank": 28.0,
            "war_value": 2.85,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 221.0,
          "k_percent": 20.7,
          "bb_percent": 10.4,
          "woba": 0.327,
          "xwoba": 0.294,
          "xba": 0.219,
          "xslg": 0.335,
          "sweet_spot_percent": 24.4,
          "barrel_batted_rate": 6.8,
          "hard_hit_percent": 36.8,
          "exit_velocity_avg": 88.2,
          "launch_angle_avg": 10.2,
          "whiff_percent": 22.3,
          "swing_percent": 44.6
        },
        "components": {
          "expected_quality": -0.33,
          "regression_edge": -0.9429,
          "xwoba_edge": -0.2857,
          "xba_edge": -0.5571,
          "xslg_edge": -0.5286,
          "barrel_edge": 0.0,
          "hard_hit_edge": -0.2429,
          "exit_velocity_edge": -0.24,
          "sweet_spot_edge": -1.4833,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "DH_691740",
        "player_id": "691740",
        "player_name": "Daniel Susac",
        "offense_factor": 0.9959,
        "quality_score": -0.0545,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "691740",
          "espn_id": 4751554,
          "player_name": "Daniel Susac",
          "team": "SF",
          "role": "batter",
          "espn_rank": 191,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 191,
            "gp_value": 31.0,
            "gp_rank": 353,
            "ab_value": 91.0,
            "ab_rank": 340,
            "r_value": 5.0,
            "r_rank": 422,
            "h_value": 26.0,
            "h_rank": 288,
            "avg_value": 0.2857142,
            "avg_rank": null,
            "2b_value": 5.0,
            "2b_rank": 259,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 0.0,
            "hr_rank": 441,
            "rbi_value": 13.0,
            "rbi_rank": 285,
            "tb_value": 33.0,
            "tb_rank": 2014,
            "bb_value": 6.0,
            "bb_rank": 359,
            "so_value": 22.0,
            "so_rank": 331,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.34,
            "obp_rank": "-",
            "slg_value": 0.3626373,
            "slg_rank": "-",
            "ops_value": 0.7026373,
            "ops_rank": null,
            "war_value": 0.56,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 52.0,
          "k_percent": 21.6,
          "bb_percent": 5.9,
          "woba": 0.315,
          "xwoba": 0.306,
          "xba": 0.269,
          "xslg": 0.361,
          "sweet_spot_percent": 41.7,
          "barrel_batted_rate": 4.2,
          "hard_hit_percent": 29.2,
          "exit_velocity_avg": 86.2,
          "launch_angle_avg": 16.1,
          "whiff_percent": 24.9,
          "swing_percent": 54.8
        },
        "components": {
          "expected_quality": -0.099,
          "regression_edge": -0.2571,
          "xwoba_edge": 0.0571,
          "xba_edge": 0.8714,
          "xslg_edge": -0.1571,
          "barrel_edge": -0.5778,
          "hard_hit_edge": -1.3286,
          "exit_velocity_edge": -1.04,
          "sweet_spot_edge": 1.4,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "DH_808982",
        "player_id": "808982",
        "player_name": "Jung Hoo Lee",
        "offense_factor": 1.022,
        "quality_score": 0.2939,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "808982",
          "espn_id": 5134621,
          "player_name": "Jung Hoo Lee",
          "team": "SF",
          "role": "batter",
          "espn_rank": 124,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 124,
            "gp_value": 66.0,
            "gp_rank": 132,
            "ab_value": 252.0,
            "ab_rank": 89,
            "r_value": 36.0,
            "r_rank": 68,
            "h_value": 82.0,
            "h_rank": 7,
            "avg_value": 0.3253968,
            "avg_rank": 3.0,
            "2b_value": 15.0,
            "2b_rank": 27,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 4.0,
            "hr_rank": 203,
            "rbi_value": 26.0,
            "rbi_rank": 146,
            "tb_value": 113.0,
            "tb_rank": 663,
            "bb_value": 11.0,
            "bb_rank": 271,
            "so_value": 25.0,
            "so_rank": 307,
            "sb_value": 3.0,
            "sb_rank": 148,
            "obp_value": 0.3568773,
            "obp_rank": "44",
            "slg_value": 0.4484126,
            "slg_rank": "57",
            "ops_value": 0.8052899,
            "ops_rank": 101.0,
            "war_value": 1.04,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 193.0,
          "k_percent": 9.3,
          "bb_percent": 4.1,
          "woba": 0.352,
          "xwoba": 0.335,
          "xba": 0.316,
          "xslg": 0.409,
          "sweet_spot_percent": 39.1,
          "barrel_batted_rate": 2.6,
          "hard_hit_percent": 30.4,
          "exit_velocity_avg": 87.7,
          "launch_angle_avg": 10.9,
          "whiff_percent": 12.2,
          "swing_percent": 47.1
        },
        "components": {
          "expected_quality": 0.4686,
          "regression_edge": -0.4857,
          "xwoba_edge": 0.8857,
          "xba_edge": 2.2143,
          "xslg_edge": 0.5286,
          "barrel_edge": -0.9333,
          "hard_hit_edge": -1.1571,
          "exit_velocity_edge": -0.44,
          "sweet_spot_edge": 0.9667,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "DH_669477",
        "player_id": "669477",
        "player_name": "Casey Schmitt",
        "offense_factor": 1.0548,
        "quality_score": 0.7312,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "669477",
          "espn_id": 4301949,
          "player_name": "Casey Schmitt",
          "team": "SF",
          "role": "batter",
          "espn_rank": 123,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 123,
            "gp_value": 66.0,
            "gp_rank": 132,
            "ab_value": 265.0,
            "ab_rank": 52,
            "r_value": 33.0,
            "r_rank": 90,
            "h_value": 75.0,
            "h_rank": 31,
            "avg_value": 0.2830188,
            "avg_rank": 29.0,
            "2b_value": 13.0,
            "2b_rank": 61,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 15.0,
            "hr_rank": 23,
            "rbi_value": 38.0,
            "rbi_rank": 51,
            "tb_value": 135.0,
            "tb_rank": 305,
            "bb_value": 7.0,
            "bb_rank": 333,
            "so_value": 56.0,
            "so_rank": 99,
            "sb_value": 7.0,
            "sb_rank": 62,
            "obp_value": 0.3131672,
            "obp_rank": "113",
            "slg_value": 0.5094339,
            "slg_rank": "22",
            "ops_value": 0.8226011,
            "ops_rank": 135.0,
            "war_value": 1.05,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 190.0,
          "k_percent": 19.9,
          "bb_percent": 2.5,
          "woba": 0.353,
          "xwoba": 0.344,
          "xba": 0.282,
          "xslg": 0.491,
          "sweet_spot_percent": 38.2,
          "barrel_batted_rate": 11.8,
          "hard_hit_percent": 41.5,
          "exit_velocity_avg": 89.1,
          "launch_angle_avg": 20.9,
          "whiff_percent": 22.3,
          "swing_percent": 53.7
        },
        "components": {
          "expected_quality": 1.0263,
          "regression_edge": -0.2571,
          "xwoba_edge": 1.1429,
          "xba_edge": 1.2429,
          "xslg_edge": 1.7,
          "barrel_edge": 1.1111,
          "hard_hit_edge": 0.4286,
          "exit_velocity_edge": 0.12,
          "sweet_spot_edge": 0.8167,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "DH_805811",
        "player_id": "805811",
        "player_name": "Bryce Eldridge",
        "offense_factor": 1.0572,
        "quality_score": 0.762,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "805811",
          "espn_id": 5149064,
          "player_name": "Bryce Eldridge",
          "team": "SF",
          "role": "batter",
          "espn_rank": 111,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 111,
            "gp_value": 33.0,
            "gp_rank": 338,
            "ab_value": 113.0,
            "ab_rank": 293,
            "r_value": 19.0,
            "r_rank": 225,
            "h_value": 36.0,
            "h_rank": 224,
            "avg_value": 0.318584,
            "avg_rank": null,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 6.0,
            "hr_rank": 156,
            "rbi_value": 16.0,
            "rbi_rank": 255,
            "tb_value": 63.0,
            "tb_rank": 1234,
            "bb_value": 17.0,
            "bb_rank": 181,
            "so_value": 26.0,
            "so_rank": 301,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.4045801,
            "obp_rank": "-",
            "slg_value": 0.5575221,
            "slg_rank": "-",
            "ops_value": 0.9621022,
            "ops_rank": null,
            "war_value": 1.16,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 46.0,
          "k_percent": 19.8,
          "bb_percent": 13.0,
          "woba": 0.413,
          "xwoba": 0.403,
          "xba": 0.302,
          "xslg": 0.555,
          "sweet_spot_percent": 34.1,
          "barrel_batted_rate": 13.6,
          "hard_hit_percent": 56.8,
          "exit_velocity_avg": 91.8,
          "launch_angle_avg": 13.2,
          "whiff_percent": 21.2,
          "swing_percent": 45.9
        },
        "components": {
          "expected_quality": 2.0156,
          "regression_edge": -0.2857,
          "xwoba_edge": 2.5,
          "xba_edge": 1.8143,
          "xslg_edge": 2.5,
          "barrel_edge": 1.5111,
          "hard_hit_edge": 2.5,
          "exit_velocity_edge": 1.2,
          "sweet_spot_edge": 0.1333,
          "launch_angle_hr_bonus": 0.2
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "reason": "Baseball Savant hitter xwOBA, xBA, xSLG, exit velocity, launch angle, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted offense; ESPN rank is attached for reporting only"
}

Savant Pitcher Quality

Source: data/all_players_stats.csv embedded Savant pitcher and movement features. Starter quality modifies opposing run scoring and pitcher strikeout/walk/homer expectations.

TeamPitcherAvailableESPN RankQualitySample WtRun PrevK FactorBB FactorHR FactorRegressionxwOBAwOBAK%BB%Whiff%Barrel%HardHit%
Away SFTrue2200.42350.98400.96401.02361.01970.8661neutral0.28900.301026.2010.2026.203.6029.90
Home ATLTrue49-0.07020.73601.00600.97940.99120.9955negative_pitcher_regression0.31400.280020.808.6022.507.1038

Pitch Movement And Arsenal

TeamPitcherMovement AvailablePrimary PitchPitchesVeloSpinAxisHBIVBDropRel XRel ZExtensionArm AngleMovement Score
Away SFTrueNone9686.63237100000000-0.1735
Home ATLTrueNone8285.45196700000000-0.2396
Run FactorValue
away_runs_vs_home_pitcher1.0044
home_runs_vs_away_pitcher0.9646
home_pitcher_quality_edge-0.4937
Raw Savant Pitcher Quality JSON
{
  "applied": true,
  "home_pitcher": {
    "available": true,
    "pitcher_id": "527048",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 184.0,
      "k_percent": 20.8,
      "bb_percent": 8.6,
      "woba": 0.28,
      "xwoba": 0.314,
      "sweet_spot_percent": 36.3,
      "barrel_batted_rate": 7.1,
      "hard_hit_percent": 38.0,
      "avg_best_speed": 77.0384,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 22.5,
      "swing_percent": 43.6
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": 0.1484,
      "command_and_miss": -0.2393,
      "regression_edge": -0.9714,
      "xwoba_edge": 0.0286,
      "barrel_edge": 0.0444,
      "hard_hit_edge": 0.0429,
      "whiff_edge": -0.4571,
      "bb_edge": 0.15,
      "pitch_design_score": -0.2396
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "527048",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 82,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 82,
        "pitch_usage": 0.0,
        "release_speed": 85.45123859333805,
        "release_spin_rate": 1966.6647703525239,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 82,
          "pitch_usage": 0.0,
          "release_speed": 85.45123859333805,
          "release_spin_rate": 1966.6647703525239,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 85.4512,
        "release_spin_rate": 1966.6648,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": -0.2396,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": -1.7111,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": -0.0702,
    "sample_weight": 0.736,
    "run_prevention_factor": 1.006,
    "strikeout_factor": 0.9794,
    "walk_factor": 0.9912,
    "homer_factor": 0.9955,
    "woba_minus_xwoba": -0.034,
    "regression_flag": "negative_pitcher_regression",
    "espn_rank": {
      "available": true,
      "player_id": "527048",
      "espn_id": 31098,
      "player_name": "Martin Perez",
      "team": "ATL",
      "role": "pitcher",
      "espn_rank": 49,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 49,
        "gp_value": 14.0,
        "gp_rank": 279,
        "gs_value": 10.0,
        "gs_rank": 112,
        "qs_value": 1.0,
        "qs_rank": 134,
        "era_value": 2.9032,
        "era_rank": null,
        "w_value": 5.0,
        "w_rank": 39,
        "l_value": 3.0,
        "l_rank": 110,
        "sv_value": 0.0,
        "sv_rank": 172,
        "hld_value": 0.0,
        "hld_rank": 256,
        "ip_value": 62.0,
        "ip_rank": 111,
        "h_value": 44.0,
        "h_rank": 132,
        "er_value": 20.0,
        "er_rank": 150,
        "hr_value": 6.0,
        "hr_rank": 125,
        "bb_value": 21.0,
        "bb_rank": 109,
        "k_value": 51.0,
        "k_rank": 108,
        "k_per_9_value": 7.403226,
        "k_per_9_rank": 26,
        "whip_value": 1.0483,
        "whip_rank": null,
        "war_value": 1.48,
        "war_rank": null
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "away_pitcher": {
    "available": true,
    "pitcher_id": "694738",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 246.0,
      "k_percent": 26.2,
      "bb_percent": 10.2,
      "woba": 0.301,
      "xwoba": 0.289,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 3.6,
      "hard_hit_percent": 29.9,
      "avg_best_speed": 77.3306,
      "avg_hyper_speed": 92.9089,
      "whiff_percent": 26.2,
      "swing_percent": 42.3
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": 0.6332,
      "command_and_miss": 0.2129,
      "regression_edge": 0.3429,
      "xwoba_edge": 0.7429,
      "barrel_edge": 0.8222,
      "hard_hit_edge": 1.2,
      "whiff_edge": 0.0714,
      "bb_edge": -0.25,
      "pitch_design_score": -0.1735
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "694738",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 96,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 96,
        "pitch_usage": 0.0,
        "release_speed": 86.63108355489675,
        "release_spin_rate": 2370.7388503015227,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 96,
          "pitch_usage": 0.0,
          "release_speed": 86.63108355489675,
          "release_spin_rate": 2370.7388503015227,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 86.6311,
        "release_spin_rate": 2370.7389,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": -0.1735,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": -1.2391,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": 0.4235,
    "sample_weight": 0.984,
    "run_prevention_factor": 0.964,
    "strikeout_factor": 1.0236,
    "walk_factor": 1.0197,
    "homer_factor": 0.8661,
    "woba_minus_xwoba": 0.012,
    "regression_flag": "neutral",
    "espn_rank": {
      "available": true,
      "player_id": "694738",
      "espn_id": 4345404,
      "player_name": "Landen Roupp",
      "team": "SF",
      "role": "pitcher",
      "espn_rank": 220,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 220,
        "gp_value": 14.0,
        "gp_rank": 279,
        "gs_value": 14.0,
        "gs_rank": 37,
        "qs_value": 5.0,
        "qs_rank": 51,
        "era_value": 4.2376,
        "era_rank": 51.0,
        "w_value": 5.0,
        "w_rank": 39,
        "l_value": 7.0,
        "l_rank": 5,
        "sv_value": 0.0,
        "sv_rank": 172,
        "hld_value": 0.0,
        "hld_rank": 256,
        "ip_value": 74.1,
        "ip_rank": 59,
        "h_value": 64.0,
        "h_rank": 83,
        "er_value": 35.0,
        "er_rank": 54,
        "hr_value": 4.0,
        "hr_rank": 199,
        "bb_value": 32.0,
        "bb_rank": 16,
        "k_value": 82.0,
        "k_rank": 25,
        "k_per_9_value": 9.928251,
        "k_per_9_rank": 11,
        "whip_value": 1.2914,
        "whip_rank": 43.0,
        "war_value": 0.38,
        "war_rank": 1.0
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "run_factors": {
    "away_runs_vs_home_pitcher": 1.0044,
    "home_runs_vs_away_pitcher": 0.9646,
    "home_pitcher_quality_edge": -0.4937
  },
  "score_before": {
    "away_runs": 4.4247,
    "home_runs": 4.0747
  },
  "score_after": {
    "away_runs": 4.4442,
    "home_runs": 3.9304,
    "home_win_probability": 0.4474
  },
  "reason": "Baseball Savant xwOBA, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted starter run prevention"
}

Team Form Snapshot

TeamLast-10 W-LWin %R/GRA/GRun DiffStreakOffenseDefense
Away SF14-510.21513.70-175coldaverage
Home ATL17-440.27912.90-114coldstrong

Season Run Differential

TeamRecordWin %Run DiffRD/GameAvailable
Away SF32-430.427-44-0.587True
Home ATL46-280.622951.284True
Signal--1.8712.163applied=True

Recent Head-to-Head

DateMatchupScoreWinnerMarginType
------

Player/Game Reconciliation

LayerABHRHRRBIBBSO
Game target SF--4----
Game target ATL--5----
Player finalized SF33930108
Player finalized ATL33940407
Player model fractional SF33.218.034.001.083.962.516.68
Player model fractional ATL31.957.824.381.234.212.767.09
Simulation box SF369414214
Simulation box ATL31750564

If player finalized rows and game target disagree, the report now exposes that gap instead of hiding it. Fractional model rows show the unrounded prop layer before box-score realization.

Pitching Snapshot

TeamRolePitcherPre IPPre ERPre SOPre HPre BBWeighted ERAWeighted WHIPBox Sync
Away SFStarterLanden Roupp5.1052645.001.44True
Away SFMiddle RelieverCaleb Kilian101003.201.11True
Away SFMiddle RelieverErik Miller101113.971.66True
Away SFMiddle RelieverRyan Walker0.2000015.521.53True
Home ATLStarterMartín Pérez5.2038603.711.19True
Home ATLMiddle RelieverDylan Lee103122.511.02True
Home ATLMiddle RelieverRaisel Iglesias101003.221.33True
Home ATLMiddle RelieverRobert Suarez101102.260.94True
Home ATLMiddle RelieverDidier Fuentes0.1011102.541.13True
Market-line comparison is not rendered because no local odds or sportsbook line CSV was found in data/. Add a real odds source before using market deltas as a model feature.

Player Boost/Deboost Impact Summary

SideTeamRolePosPlayerDominantChangedBoostedDeboostedBetterWorseLargest MetricLargest DeltaDirectionEffect
awaySFbatterCFCasey Schmittbetter107364predicted_RBI2.6300boostbetter
awaySFbatterRFBryce Eldridgeworse102819predicted_SO2.2350boostworse
awaySFbatter3BMatt Chapmanworse93627predicted_SO2.1370boostworse
awaySFbatterLFJung Hoo Leeworse95445predicted_H2.0200boostbetter
awaySFbatter2BDrew Gilbertworse126657predicted_AB1.9900boostbetter
homeATLbatterCHa-Seong Kimworse102837predicted_BB1.6110boostbetter
homeATLbatter2BMichael Harris IIbetter106473predicted_RBI1.4700boostbetter
homeATLbatterLFMike Yastrzemskibetter106473predicted_H1.3500boostbetter
homeATLbatterSSDrake Baldwinworse103746predicted_AB-1.0900deboostworse
homeATLbatter1BMatt Olsonbetter85353predicted_AB-1.0500deboostworse
homeATLpitcherStarterMartín Pérezdeboosted20211predicted_ER-1.0000deboostbetter
homeATLpitcherMiddle RelieverDidier Fuentesworse21102predicted_ER1.0000boostworse
homeATLbatterDHOzzie Albiesworse1111029predicted_H-0.9800deboostworse
homeATLbatterRFDominic Smithworse113829predicted_BB0.8730boostbetter
homeATLbatter3BAustin Rileyworse95445predicted_SO0.8380boostworse
awaySFbatterCWilly Adamesboosted106455predicted_SO0.8330boostworse
awaySFbatter1BLuis Arraezworse1129110predicted_SO0.8310boostworse
awaySFbatterSSDaniel Susacworse102819predicted_BB0.7930boostbetter
homeATLbatterCFMauricio Dubónworse93645predicted_BB0.7290boostbetter
awaySFbatterDHRafael Deversworse80817predicted_RBI-0.4800deboostworse
awaySFpitcherMiddle RelieverErik Millerbetter11010predicted_IP0.3333boostbetter
awaySFpitcherStarterLanden Rouppworse10101predicted_IP-0.2333deboostworse
awaySFpitcherMiddle RelieverRyan Walkerbetter11010predicted_IP0.1000boostbetter

This table ranks players whose JSON evolution changed materially. Boost/deboost is numeric movement; better/worse is role-aware.

Away Team: SF

Away Pitcher Deep Analysis

FieldValue
PitcherLanden Roupp
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score0.4235
ESPN Rank220
Movement AvailableTrue
Primary Pitch-
Movement Score-0.1735
Avg Velo86.6311
Avg Spin2370.7389
HB Inches0
IVB Inches0
Release Extension0
Pre IP5.1000
Pre ER5
Pre H6
Pre BB4
Pre SO2
Season ERA4.2377
Season WHIP1.2915
Role Avg IP5.3100
Recent Avg IP5.0670
Last Start IP4.2000
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "SF",
    "games": 84,
    "wins": 37,
    "losses": 47,
    "win_pct": 0.4405,
    "runs_scored": 371.0,
    "runs_allowed": 398.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3214,
    "avg_runs_scored": 4.4167,
    "avg_runs_allowed": 4.7381,
    "offense_index": 0.9776,
    "defense_index": 0.9535,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.7,
      "avg_runs_allowed": 4.2,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": -0.0547
  },
  "opponent": {
    "team": "ATL",
    "games": 81,
    "wins": 51,
    "losses": 30,
    "win_pct": 0.6296,
    "runs_scored": 396.0,
    "runs_allowed": 288.0,
    "run_differential": 108.0,
    "run_differential_per_game": 1.3333,
    "avg_runs_scored": 4.8889,
    "avg_runs_allowed": 3.5556,
    "offense_index": 1.0822,
    "defense_index": 1.2706,
    "current_streak": "L4",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 2.7,
      "avg_runs_allowed": 4.7,
      "run_differential": -20.0
    },
    "available": true,
    "quality_score": 0.1675
  },
  "edges": {
    "quality_edge": -0.2222,
    "offense_edge": -0.0224,
    "opponent_offense_edge": 0.0822,
    "defense_strength": -0.0465,
    "opponent_defense_weakness": -0.2706,
    "recent_win_pct_edge": 0.4
  },
  "player_factors": {
    "ip": 0.9864,
    "run_prevention": 1.0289,
    "strikeout": 0.9868
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "694738",
    "profile": {
      "available": true,
      "pitcher_id": "694738",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 246.0,
        "k_percent": 26.2,
        "bb_percent": 10.2,
        "woba": 0.301,
        "xwoba": 0.289,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 3.6,
        "hard_hit_percent": 29.9,
        "avg_best_speed": 77.3306,
        "avg_hyper_speed": 92.9089,
        "whiff_percent": 26.2,
        "swing_percent": 42.3
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.6332,
        "command_and_miss": 0.2129,
        "regression_edge": 0.3429,
        "xwoba_edge": 0.7429,
        "barrel_edge": 0.8222,
        "hard_hit_edge": 1.2,
        "whiff_edge": 0.0714,
        "bb_edge": -0.25,
        "pitch_design_score": -0.1735
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "694738",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 96,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 96,
          "pitch_usage": 0.0,
          "release_speed": 86.63108355489675,
          "release_spin_rate": 2370.7388503015227,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 96,
            "pitch_usage": 0.0,
            "release_speed": 86.63108355489675,
            "release_spin_rate": 2370.7388503015227,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 86.6311,
          "release_spin_rate": 2370.7389,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.1735,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -1.2391,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.4235,
      "sample_weight": 0.984,
      "run_prevention_factor": 0.964,
      "strikeout_factor": 1.0236,
      "walk_factor": 1.0197,
      "homer_factor": 0.8661,
      "woba_minus_xwoba": 0.012,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "694738",
        "espn_id": 4345404,
        "player_name": "Landen Roupp",
        "team": "SF",
        "role": "pitcher",
        "espn_rank": 220,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 220,
          "gp_value": 14.0,
          "gp_rank": 279,
          "gs_value": 14.0,
          "gs_rank": 37,
          "qs_value": 5.0,
          "qs_rank": 51,
          "era_value": 4.2376,
          "era_rank": 51.0,
          "w_value": 5.0,
          "w_rank": 39,
          "l_value": 7.0,
          "l_rank": 5,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 74.1,
          "ip_rank": 59,
          "h_value": 64.0,
          "h_rank": 83,
          "er_value": 35.0,
          "er_rank": 54,
          "hr_value": 4.0,
          "hr_rank": 199,
          "bb_value": 32.0,
          "bb_rank": 16,
          "k_value": 82.0,
          "k_rank": 25,
          "k_per_9_value": 9.928251,
          "k_per_9_rank": 11,
          "whip_value": 1.2914,
          "whip_rank": 43.0,
          "war_value": 0.38,
          "war_rank": 1.0
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 3.0,
        "factor": 0.9646,
        "adjusted": 3
      },
      "predicted_H": {
        "original": 5.0,
        "factor": 0.9646,
        "adjusted": 5
      },
      "predicted_BB": {
        "original": 2.0,
        "factor": 1.0194,
        "adjusted": 2
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.8682,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 5.0,
        "factor": 1.0232,
        "adjusted": 5
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 51.2,
    "ER": 29,
    "H": 49,
    "BB": 25,
    "SO": 58,
    "HR": 4,
    "ERA": 5.051612903225807,
    "WHIP": 1.4322580645161291,
    "K9": 10.103225806451613,
    "HR9": 0.6967741935483871,
    "games_pitched": 10,
    "quality_starts": 2,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-12T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "694738",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 96,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 96,
    "pitch_usage": 0.0,
    "release_speed": 86.63108355489675,
    "release_spin_rate": 2370.7388503015227,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 96,
      "pitch_usage": 0.0,
      "release_speed": 86.63108355489675,
      "release_spin_rate": 2370.7388503015227,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 86.6311,
    "release_spin_rate": 2370.7389,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.1735,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -1.2391,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "role": "pitcher",
  "player_id": "694738",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 14,
  "reference_playing_time": 5.333,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 25.1,
        "ER": 16.0,
        "R": 18.0,
        "H": 29.0,
        "BB": 11.0,
        "SO": 24.0,
        "HR": 2.0,
        "BF": 112.0,
        "Pitches": 483.0
      },
      "per_game": {
        "IP": 5.0,
        "ER": 3.2,
        "R": 3.6,
        "H": 5.8,
        "BB": 2.2,
        "SO": 4.8,
        "HR": 0.4,
        "BF": 22.4,
        "Pitches": 96.6
      },
      "rates": {
        "ERA": 5.6842,
        "WHIP": 1.5789,
        "ER_per_IP": 0.63158,
        "H_per_IP": 1.14474,
        "BB_per_IP": 0.43421,
        "SO_per_IP": 0.94737,
        "HR_per_IP": 0.07895
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 51.2,
        "ER": 29.0,
        "R": 31.0,
        "H": 49.0,
        "BB": 25.0,
        "SO": 58.0,
        "HR": 4.0,
        "BF": 223.0,
        "Pitches": 979.0
      },
      "per_game": {
        "IP": 5.1,
        "ER": 2.9,
        "R": 3.1,
        "H": 4.9,
        "BB": 2.5,
        "SO": 5.8,
        "HR": 0.4,
        "BF": 22.3,
        "Pitches": 97.9
      },
      "rates": {
        "ERA": 5.0516,
        "WHIP": 1.4323,
        "ER_per_IP": 0.56129,
        "H_per_IP": 0.94839,
        "BB_per_IP": 0.48387,
        "SO_per_IP": 1.12258,
        "HR_per_IP": 0.07742
      }
    },
    "season": {
      "games": 14,
      "totals": {
        "IP": 74.1,
        "ER": 35.0,
        "R": 39.0,
        "H": 64.0,
        "BB": 32.0,
        "SO": 82.0,
        "HR": 4.0,
        "BF": 313.0,
        "Pitches": 1342.0
      },
      "per_game": {
        "IP": 5.1,
        "ER": 2.5,
        "R": 2.7857,
        "H": 4.5714,
        "BB": 2.2857,
        "SO": 5.8571,
        "HR": 0.2857,
        "BF": 22.3571,
        "Pitches": 95.8571
      },
      "rates": {
        "ERA": 4.2377,
        "WHIP": 1.2915,
        "ER_per_IP": 0.47085,
        "H_per_IP": 0.86099,
        "BB_per_IP": 0.43049,
        "SO_per_IP": 1.10314,
        "HR_per_IP": 0.05381
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 5.1,
    "predicted_ER": 2.901,
    "predicted_H": 5.261,
    "predicted_BB": 2.234,
    "predicted_SO": 5.29,
    "predicted_HR": 0.483,
    "predicted_ERA": 4.9984,
    "predicted_WHIP": 1.4351
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.4612,
  "form_weight": 0.5388,
  "form_reliability": 0.7368,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 5.1,
      "form": 5.1,
      "final": 5.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 5.0,
      "form": 2.901,
      "final": 3.8691,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 6.0,
      "form": 5.261,
      "final": 5.6018,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 4.0,
      "form": 2.234,
      "final": 3.0485,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 2.0,
      "form": 5.29,
      "final": 3.7726,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.483,
      "final": 0.2602,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.9984,
      "final": 4.9984,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.4351,
      "final": 1.4351,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherCaleb Kilian
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.0788
ESPN Rank168
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H0
Pre BB0
Pre SO1
Season ERA3.0619
Season WHIP1.1134
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "SF",
    "games": 84,
    "wins": 37,
    "losses": 47,
    "win_pct": 0.4405,
    "runs_scored": 371.0,
    "runs_allowed": 398.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3214,
    "avg_runs_scored": 4.4167,
    "avg_runs_allowed": 4.7381,
    "offense_index": 0.9776,
    "defense_index": 0.9535,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.7,
      "avg_runs_allowed": 4.2,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": -0.0547
  },
  "opponent": {
    "team": "ATL",
    "games": 81,
    "wins": 51,
    "losses": 30,
    "win_pct": 0.6296,
    "runs_scored": 396.0,
    "runs_allowed": 288.0,
    "run_differential": 108.0,
    "run_differential_per_game": 1.3333,
    "avg_runs_scored": 4.8889,
    "avg_runs_allowed": 3.5556,
    "offense_index": 1.0822,
    "defense_index": 1.2706,
    "current_streak": "L4",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 2.7,
      "avg_runs_allowed": 4.7,
      "run_differential": -20.0
    },
    "available": true,
    "quality_score": 0.1675
  },
  "edges": {
    "quality_edge": -0.2222,
    "offense_edge": -0.0224,
    "opponent_offense_edge": 0.0822,
    "defense_strength": -0.0465,
    "opponent_defense_weakness": -0.2706,
    "recent_win_pct_edge": 0.4
  },
  "player_factors": {
    "ip": 0.9864,
    "run_prevention": 1.0289,
    "strikeout": 0.9868
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "668873",
    "profile": {
      "available": true,
      "pitcher_id": "668873",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 95.0,
        "k_percent": 28.6,
        "bb_percent": 11.3,
        "woba": 0.268,
        "xwoba": 0.302,
        "sweet_spot_percent": 32.1,
        "barrel_batted_rate": 9.0,
        "hard_hit_percent": 38.5,
        "avg_best_speed": 76.9139,
        "avg_hyper_speed": 93.727,
        "whiff_percent": 27.0,
        "swing_percent": 48.7
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.3229,
        "command_and_miss": 0.3521,
        "regression_edge": -0.9714,
        "xwoba_edge": 0.3714,
        "barrel_edge": -0.3778,
        "hard_hit_edge": -0.0286,
        "whiff_edge": 0.1857,
        "bb_edge": -0.525,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "668873",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.0788,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9933,
      "strikeout_factor": 1.019,
      "walk_factor": 1.0189,
      "homer_factor": 1.0091,
      "woba_minus_xwoba": -0.034,
      "regression_flag": "negative_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "668873",
        "espn_id": 4875969,
        "player_name": "Caleb Kilian",
        "team": "SF",
        "role": "pitcher",
        "espn_rank": 168,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 168,
          "gp_value": 31.0,
          "gp_rank": 46,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 3.0618,
          "era_rank": null,
          "w_value": 2.0,
          "w_rank": 180,
          "l_value": 3.0,
          "l_rank": 110,
          "sv_value": 4.0,
          "sv_rank": 30,
          "hld_value": 3.0,
          "hld_rank": 142,
          "ip_value": 32.1,
          "ip_rank": 217,
          "h_value": 21.0,
          "h_rank": 312,
          "er_value": 11.0,
          "er_rank": 294,
          "hr_value": 5.0,
          "hr_rank": 157,
          "bb_value": 15.0,
          "bb_rank": 191,
          "k_value": 38.0,
          "k_rank": 170,
          "k_per_9_value": 10.57732,
          "k_per_9_rank": 21,
          "whip_value": 1.1134,
          "whip_rank": null,
          "war_value": 0.6,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.997,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.997,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0085,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0041,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0086,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.0,
    "ER": 5,
    "H": 9,
    "BB": 3,
    "SO": 13,
    "HR": 2,
    "ERA": 4.5,
    "WHIP": 1.2,
    "K9": 11.7,
    "HR9": 1.8,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-17T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "668873",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.421,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5622,
    "prior_weight": 0.4378
  },
  "role": "pitcher",
  "player_id": "668873",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 31,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.2,
        "ER": 0.0,
        "R": 0.0,
        "H": 2.0,
        "BB": 1.0,
        "SO": 8.0,
        "HR": 0.0,
        "BF": 17.0,
        "Pitches": 61.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.4,
        "BB": 0.2,
        "SO": 1.6,
        "HR": 0.0,
        "BF": 3.4,
        "Pitches": 12.2
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 0.6429,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.42857,
        "BB_per_IP": 0.21429,
        "SO_per_IP": 1.71429,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.0,
        "ER": 5.0,
        "R": 5.0,
        "H": 9.0,
        "BB": 3.0,
        "SO": 13.0,
        "HR": 2.0,
        "BF": 42.0,
        "Pitches": 148.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.5,
        "R": 0.5,
        "H": 0.9,
        "BB": 0.3,
        "SO": 1.3,
        "HR": 0.2,
        "BF": 4.2,
        "Pitches": 14.8
      },
      "rates": {
        "ERA": 4.5,
        "WHIP": 1.2,
        "ER_per_IP": 0.5,
        "H_per_IP": 0.9,
        "BB_per_IP": 0.3,
        "SO_per_IP": 1.3,
        "HR_per_IP": 0.2
      }
    },
    "season": {
      "games": 31,
      "totals": {
        "IP": 32.1,
        "ER": 11.0,
        "R": 13.0,
        "H": 21.0,
        "BB": 15.0,
        "SO": 38.0,
        "HR": 5.0,
        "BF": 133.0,
        "Pitches": 501.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3548,
        "R": 0.4194,
        "H": 0.6774,
        "BB": 0.4839,
        "SO": 1.2258,
        "HR": 0.1613,
        "BF": 4.2903,
        "Pitches": 16.1613
      },
      "rates": {
        "ERA": 3.0619,
        "WHIP": 1.1134,
        "ER_per_IP": 0.34021,
        "H_per_IP": 0.64948,
        "BB_per_IP": 0.46392,
        "SO_per_IP": 1.17526,
        "HR_per_IP": 0.15464
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.356,
    "predicted_H": 0.785,
    "predicted_BB": 0.324,
    "predicted_SO": 1.232,
    "predicted_HR": 0.121,
    "predicted_ERA": 3.2035,
    "predicted_WHIP": 1.1094
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.535,
  "form_weight": 0.465,
  "form_reliability": 0.5622,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.421,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5622,
    "prior_weight": 0.4378
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.356,
      "final": 0.1656,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.785,
      "final": 0.365,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.324,
      "final": 0.1507,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 1.232,
      "final": 1.1079,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.121,
      "final": 0.0563,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.2035,
      "final": 3.2035,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1094,
      "final": 1.1094,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherErik Miller
RoleMiddle Reliever
Projection Source-
Savant Quality Score-0.0028
ESPN Rank406
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H1
Pre BB1
Pre SO1
Season ERA4.1186
Season WHIP1.5763
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "SF",
    "games": 84,
    "wins": 37,
    "losses": 47,
    "win_pct": 0.4405,
    "runs_scored": 371.0,
    "runs_allowed": 398.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3214,
    "avg_runs_scored": 4.4167,
    "avg_runs_allowed": 4.7381,
    "offense_index": 0.9776,
    "defense_index": 0.9535,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.7,
      "avg_runs_allowed": 4.2,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": -0.0547
  },
  "opponent": {
    "team": "ATL",
    "games": 81,
    "wins": 51,
    "losses": 30,
    "win_pct": 0.6296,
    "runs_scored": 396.0,
    "runs_allowed": 288.0,
    "run_differential": 108.0,
    "run_differential_per_game": 1.3333,
    "avg_runs_scored": 4.8889,
    "avg_runs_allowed": 3.5556,
    "offense_index": 1.0822,
    "defense_index": 1.2706,
    "current_streak": "L4",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 2.7,
      "avg_runs_allowed": 4.7,
      "run_differential": -20.0
    },
    "available": true,
    "quality_score": 0.1675
  },
  "edges": {
    "quality_edge": -0.2222,
    "offense_edge": -0.0224,
    "opponent_offense_edge": 0.0822,
    "defense_strength": -0.0465,
    "opponent_defense_weakness": -0.2706,
    "recent_win_pct_edge": 0.4
  },
  "player_factors": {
    "ip": 0.9864,
    "run_prevention": 1.0289,
    "strikeout": 0.9868
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "669062",
    "profile": {
      "available": true,
      "pitcher_id": "669062",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 67.0,
        "k_percent": 29.3,
        "bb_percent": 18.5,
        "woba": 0.344,
        "xwoba": 0.329,
        "sweet_spot_percent": 36.2,
        "barrel_batted_rate": 10.6,
        "hard_hit_percent": 31.9,
        "avg_best_speed": 70.0439,
        "avg_hyper_speed": 93.304,
        "whiff_percent": 32.3,
        "swing_percent": 36.3
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.2279,
        "command_and_miss": 0.3021,
        "regression_edge": 0.4286,
        "xwoba_edge": -0.4,
        "barrel_edge": -0.7333,
        "hard_hit_edge": 0.9143,
        "whiff_edge": 0.9429,
        "bb_edge": -2.325,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "669062",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": -0.0028,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0002,
      "strikeout_factor": 1.0345,
      "walk_factor": 1.0837,
      "homer_factor": 1.0153,
      "woba_minus_xwoba": 0.015,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "669062",
        "espn_id": 4152950,
        "player_name": "Erik Miller",
        "team": "SF",
        "role": "pitcher",
        "espn_rank": 406,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 406,
          "gp_value": 24.0,
          "gp_rank": 139,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 4.5762,
          "era_rank": null,
          "w_value": 0.0,
          "w_rank": 404,
          "l_value": 0.0,
          "l_rank": 430,
          "sv_value": 2.0,
          "sv_rank": 56,
          "hld_value": 8.0,
          "hld_rank": 41,
          "ip_value": 19.2,
          "ip_rank": 386,
          "h_value": 17.0,
          "h_rank": 386,
          "er_value": 10.0,
          "er_rank": 324,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 17.0,
          "bb_rank": 157,
          "k_value": 27.0,
          "k_rank": 277,
          "k_per_9_value": 12.355932,
          "k_per_9_rank": 19,
          "whip_value": 1.7288,
          "whip_rank": null,
          "war_value": 0.0,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 1.0001,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 1.0001,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0377,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0069,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0155,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 7.1,
    "ER": 3,
    "H": 8,
    "BB": 4,
    "SO": 9,
    "HR": 2,
    "ERA": 3.681818181818182,
    "WHIP": 1.6363636363636365,
    "K9": 11.045454545454547,
    "HR9": 2.4545454545454546,
    "games_pitched": 9,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": true
  },
  "fielding": {
    "errors": 1,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-12T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "669062",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 3.905,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4385,
    "prior_weight": 0.5615
  },
  "role": "pitcher",
  "player_id": "669062",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 23,
  "reference_playing_time": 0.667,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 3.1,
        "ER": 1.0,
        "R": 1.0,
        "H": 6.0,
        "BB": 2.0,
        "SO": 3.0,
        "HR": 1.0,
        "BF": 17.0,
        "Pitches": 72.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 0.2,
        "R": 0.2,
        "H": 1.2,
        "BB": 0.4,
        "SO": 0.6,
        "HR": 0.2,
        "BF": 3.4,
        "Pitches": 14.4
      },
      "rates": {
        "ERA": 2.7,
        "WHIP": 2.4,
        "ER_per_IP": 0.3,
        "H_per_IP": 1.8,
        "BB_per_IP": 0.6,
        "SO_per_IP": 0.9,
        "HR_per_IP": 0.3
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 7.2,
        "ER": 3.0,
        "R": 3.0,
        "H": 8.0,
        "BB": 7.0,
        "SO": 9.0,
        "HR": 2.0,
        "BF": 37.0,
        "Pitches": 162.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 0.3,
        "R": 0.3,
        "H": 0.8,
        "BB": 0.7,
        "SO": 0.9,
        "HR": 0.2,
        "BF": 3.7,
        "Pitches": 16.2
      },
      "rates": {
        "ERA": 3.5217,
        "WHIP": 1.9565,
        "ER_per_IP": 0.3913,
        "H_per_IP": 1.04348,
        "BB_per_IP": 0.91304,
        "SO_per_IP": 1.17391,
        "HR_per_IP": 0.26087
      }
    },
    "season": {
      "games": 23,
      "totals": {
        "IP": 19.2,
        "ER": 9.0,
        "R": 9.0,
        "H": 16.0,
        "BB": 15.0,
        "SO": 27.0,
        "HR": 2.0,
        "BF": 89.0,
        "Pitches": 421.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3913,
        "R": 0.3913,
        "H": 0.6957,
        "BB": 0.6522,
        "SO": 1.1739,
        "HR": 0.087,
        "BF": 3.8696,
        "Pitches": 18.3043
      },
      "rates": {
        "ERA": 4.1186,
        "WHIP": 1.5763,
        "ER_per_IP": 0.45763,
        "H_per_IP": 0.81356,
        "BB_per_IP": 0.76271,
        "SO_per_IP": 1.37288,
        "HR_per_IP": 0.10169
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 0.2,
    "predicted_ER": 0.307,
    "predicted_H": 0.789,
    "predicted_BB": 0.368,
    "predicted_SO": 0.699,
    "predicted_HR": 0.132,
    "predicted_ERA": 3.9658,
    "predicted_WHIP": 1.6629
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5872,
  "form_weight": 0.4128,
  "form_reliability": 0.4385,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 3.905,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4385,
    "prior_weight": 0.5615
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 0.2,
      "form": 0.2,
      "final": 0.2,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.307,
      "final": 0.1267,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.789,
      "final": 0.9129,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 0.368,
      "final": 0.7391,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 0.699,
      "final": 0.8758,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.132,
      "final": 0.0545,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.9658,
      "final": 3.9658,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.6629,
      "final": 1.6629,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherRyan Walker
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.0252
ESPN Rank577
Movement AvailableTrue
Primary Pitch-
Movement Score0.1079
Avg Velo91.6563
Avg Spin2438.5955
HB Inches0
IVB Inches0
Release Extension0
Pre IP0.2000
Pre ER0
Pre H0
Pre BB1
Pre SO0
Season ERA5.4000
Season WHIP1.6364
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "SF",
    "games": 84,
    "wins": 37,
    "losses": 47,
    "win_pct": 0.4405,
    "runs_scored": 371.0,
    "runs_allowed": 398.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3214,
    "avg_runs_scored": 4.4167,
    "avg_runs_allowed": 4.7381,
    "offense_index": 0.9776,
    "defense_index": 0.9535,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.7,
      "avg_runs_allowed": 4.2,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": -0.0547
  },
  "opponent": {
    "team": "ATL",
    "games": 81,
    "wins": 51,
    "losses": 30,
    "win_pct": 0.6296,
    "runs_scored": 396.0,
    "runs_allowed": 288.0,
    "run_differential": 108.0,
    "run_differential_per_game": 1.3333,
    "avg_runs_scored": 4.8889,
    "avg_runs_allowed": 3.5556,
    "offense_index": 1.0822,
    "defense_index": 1.2706,
    "current_streak": "L4",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 2.7,
      "avg_runs_allowed": 4.7,
      "run_differential": -20.0
    },
    "available": true,
    "quality_score": 0.1675
  },
  "edges": {
    "quality_edge": -0.2222,
    "offense_edge": -0.0224,
    "opponent_offense_edge": 0.0822,
    "defense_strength": -0.0465,
    "opponent_defense_weakness": -0.2706,
    "recent_win_pct_edge": 0.4
  },
  "player_factors": {
    "ip": 0.9864,
    "run_prevention": 1.0289,
    "strikeout": 0.9868
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "676254",
    "profile": {
      "available": true,
      "pitcher_id": "676254",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 69.0,
        "k_percent": 20.2,
        "bb_percent": 11.9,
        "woba": 0.345,
        "xwoba": 0.314,
        "sweet_spot_percent": 28.6,
        "barrel_batted_rate": 5.4,
        "hard_hit_percent": 30.4,
        "avg_best_speed": 71.3305,
        "avg_hyper_speed": 92.3604,
        "whiff_percent": 17.3,
        "swing_percent": 41.2
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.2529,
        "command_and_miss": -0.7029,
        "regression_edge": 0.8857,
        "xwoba_edge": 0.0286,
        "barrel_edge": 0.4222,
        "hard_hit_edge": 1.1286,
        "whiff_edge": -1.2,
        "bb_edge": -0.675,
        "pitch_design_score": 0.1079
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "676254",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 23,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 23,
          "pitch_usage": 0.0,
          "release_speed": 91.65625355179598,
          "release_spin_rate": 2438.5955476682925,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 23,
            "pitch_usage": 0.0,
            "release_speed": 91.65625355179598,
            "release_spin_rate": 2438.5955476682925,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 91.6563,
          "release_spin_rate": 2438.5955,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": 0.1079,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": 0.7709,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.0252,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9979,
      "strikeout_factor": 0.9725,
      "walk_factor": 1.0243,
      "homer_factor": 0.9641,
      "woba_minus_xwoba": 0.031,
      "regression_flag": "positive_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "676254",
        "espn_id": 5000950,
        "player_name": "Ryan Walker",
        "team": "SF",
        "role": "pitcher",
        "espn_rank": 577,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 577,
          "gp_value": 19.0,
          "gp_rank": 195,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 5.4,
          "era_rank": null,
          "w_value": 0.0,
          "w_rank": 404,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 3.0,
          "sv_rank": 45,
          "hld_value": 3.0,
          "hld_rank": 142,
          "ip_value": 18.1,
          "ip_rank": 400,
          "h_value": 20.0,
          "h_rank": 330,
          "er_value": 11.0,
          "er_rank": 294,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 10.0,
          "bb_rank": 303,
          "k_value": 17.0,
          "k_rank": 386,
          "k_per_9_value": 8.345454,
          "k_per_9_rank": 26,
          "whip_value": 1.6363,
          "whip_rank": null,
          "war_value": -0.24,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 1.0,
        "factor": 0.9991,
        "adjusted": 1
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9991,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0109,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9838,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 0.9876,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.1,
    "ER": 7,
    "H": 11,
    "BB": 5,
    "SO": 7,
    "HR": 1,
    "ERA": 6.750000000000001,
    "WHIP": 1.7142857142857144,
    "K9": 6.750000000000001,
    "HR9": 0.9642857142857144,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": true
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-17T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "676254",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 23,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 23,
    "pitch_usage": 0.0,
    "release_speed": 91.65625355179598,
    "release_spin_rate": 2438.5955476682925,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 23,
      "pitch_usage": 0.0,
      "release_speed": 91.65625355179598,
      "release_spin_rate": 2438.5955476682925,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 91.6563,
    "release_spin_rate": 2438.5955,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": 0.1079,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": 0.7709,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 3.641,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4213,
    "prior_weight": 0.5787
  },
  "role": "pitcher",
  "player_id": "676254",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 19,
  "reference_playing_time": 0.1,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.2,
        "ER": 4.0,
        "R": 4.0,
        "H": 6.0,
        "BB": 3.0,
        "SO": 4.0,
        "HR": 1.0,
        "BF": 23.0,
        "Pitches": 97.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.8,
        "R": 0.8,
        "H": 1.2,
        "BB": 0.6,
        "SO": 0.8,
        "HR": 0.2,
        "BF": 4.6,
        "Pitches": 19.4
      },
      "rates": {
        "ERA": 7.7143,
        "WHIP": 1.9286,
        "ER_per_IP": 0.85714,
        "H_per_IP": 1.28571,
        "BB_per_IP": 0.64286,
        "SO_per_IP": 0.85714,
        "HR_per_IP": 0.21429
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.1,
        "ER": 7.0,
        "R": 8.0,
        "H": 11.0,
        "BB": 5.0,
        "SO": 7.0,
        "HR": 1.0,
        "BF": 44.0,
        "Pitches": 175.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.7,
        "R": 0.8,
        "H": 1.1,
        "BB": 0.5,
        "SO": 0.7,
        "HR": 0.1,
        "BF": 4.4,
        "Pitches": 17.5
      },
      "rates": {
        "ERA": 6.75,
        "WHIP": 1.7143,
        "ER_per_IP": 0.75,
        "H_per_IP": 1.17857,
        "BB_per_IP": 0.53571,
        "SO_per_IP": 0.75,
        "HR_per_IP": 0.10714
      }
    },
    "season": {
      "games": 19,
      "totals": {
        "IP": 18.1,
        "ER": 11.0,
        "R": 12.0,
        "H": 20.0,
        "BB": 10.0,
        "SO": 17.0,
        "HR": 2.0,
        "BF": 84.0,
        "Pitches": 337.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.5789,
        "R": 0.6316,
        "H": 1.0526,
        "BB": 0.5263,
        "SO": 0.8947,
        "HR": 0.1053,
        "BF": 4.4211,
        "Pitches": 17.7368
      },
      "rates": {
        "ERA": 5.4,
        "WHIP": 1.6364,
        "ER_per_IP": 0.6,
        "H_per_IP": 1.09091,
        "BB_per_IP": 0.54545,
        "SO_per_IP": 0.92727,
        "HR_per_IP": 0.10909
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 0.2,
    "predicted_ER": 0.377,
    "predicted_H": 0.659,
    "predicted_BB": 0.281,
    "predicted_SO": 0.549,
    "predicted_HR": 0.092,
    "predicted_ERA": 5.5218,
    "predicted_WHIP": 1.5301
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5945,
  "form_weight": 0.4055,
  "form_reliability": 0.4213,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 3.641,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4213,
    "prior_weight": 0.5787
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 0.1,
      "form": 0.2,
      "final": 0.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.377,
      "final": 0.1529,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.659,
      "final": 0.2672,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 0.281,
      "final": 0.7084,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 0.549,
      "final": 0.2226,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.092,
      "final": 0.0373,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 5.5218,
      "final": 5.5218,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.5301,
      "final": 1.5301,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Rafael Devers (646240) · BATTER · DH · Team SF
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 247
All-history rows before 20260618: 247
System season_avg: 0.2420
Data season_avg (2026 season-to-date): 0.2510
Diff (system - data): -0.0090
System opponent_avg: 0.3330

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.3110.0000.000Hitting_2B0.2792.000-0.279-2.000
predicted_3B0.0140.0000.000Hitting_3B0.0040.000-0.0040.000
predicted_AB4.0704.0004.000Hitting_AB3.8873.0000.1131.000
predicted_AVG0.2390.2500.250Hitting_AVG0.2510.667-0.001-0.417
predicted_BB0.3510.0000.000Hitting_BB0.2961.000-0.296-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.9701.0001.000Hitting_H0.9762.0000.024-1.000
predicted_HR0.1600.0000.000Hitting_HR0.1300.000-0.1300.000
predicted_OBP0.3430.2500.250Hitting_OBP0.3030.750-0.053-0.500
predicted_R0.4590.0000.000Hitting_R0.4250.000-0.4250.000
predicted_RBI0.4800.0000.000Hitting_RBI0.5261.000-0.526-1.000
predicted_SLG0.4550.2500.250Hitting_SLG0.4251.333-0.175-1.083
predicted_SO1.2701.0001.000Hitting_SO1.2551.000-0.2550.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics8
Boosted Metrics0
Deboosted Metrics8
Better Metrics1
Worse Metrics7
Biggest Boost-
Biggest Deboostpredicted_RBI: 0.4800 -> 0.0000 (deboost -0.4800, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend64251predicted_BB: 0.3510 -> 0.4295 (boost 0.0785, better)predicted_AB: 4.0700 -> 3.8769 (deboost -0.1931, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3485 -> 0.3186 (deboost -0.0299, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72534predicted_AB: 3.8769 -> 4.0000 (boost 0.1231, better)predicted_RBI: 0.4437 -> 0.0000 (deboost -0.4437, worse)AB rounded to 4 (raw=4.07), rates preserved: AVG=0.232 HR/AB=0.038
5bvp_blend00000--Sample-size BvP blend (BvP AB=12.0, weight=0.114, BvP AVG=0.333)
6consistency_constraints10101-predicted_R: 0.4267 -> 0.0000 (deboost -0.4267, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context31212predicted_AVG: 0.2437 -> 0.2500 (boost 0.0063, better)predicted_SLG: 0.4555 -> 0.2500 (deboost -0.2055, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference00000--Attached simulation box score without overwriting model prediction
9current_json_final32121predicted_SLG: 0.2500 -> 0.4555 (boost 0.2055, better)predicted_AVG: 0.2500 -> 0.2437 (deboost -0.0063, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "646240",
  "player_name": "Rafael Devers",
  "position": "DH",
  "team": "SF",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.311,
        "predicted_3B": 0.014,
        "predicted_AB": 4.07,
        "predicted_AVG": 0.239,
        "predicted_BB": 0.351,
        "predicted_H": 0.97,
        "predicted_HR": 0.16,
        "predicted_OBP": 0.343,
        "predicted_R": 0.459,
        "predicted_RBI": 0.48,
        "predicted_SLG": 0.455,
        "predicted_SO": 1.27
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.3339,
        "predicted_3B": 0.0115,
        "predicted_AB": 3.8769,
        "predicted_AVG": 0.2501,
        "predicted_BB": 0.4295,
        "predicted_H": 0.9649,
        "predicted_HBP": 0.01,
        "predicted_HR": 0.1613,
        "predicted_OBP": 0.3485,
        "predicted_R": 0.4416,
        "predicted_RBI": 0.4592,
        "predicted_SLG": 0.4766,
        "predicted_SO": 1.1843
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.311,
          "after": 0.3339,
          "delta": 0.0229,
          "percent_delta": 0.0736,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.014,
          "after": 0.0115,
          "delta": -0.0025,
          "percent_delta": -0.1786,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.07,
          "after": 3.8769,
          "delta": -0.1931,
          "percent_delta": -0.0474,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.239,
          "after": 0.2501,
          "delta": 0.0111,
          "percent_delta": 0.0464,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.351,
          "after": 0.4295,
          "delta": 0.0785,
          "percent_delta": 0.2236,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.97,
          "after": 0.9649,
          "delta": -0.0051,
          "percent_delta": -0.0053,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.16,
          "after": 0.1613,
          "delta": 0.0013,
          "percent_delta": 0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.343,
          "after": 0.3485,
          "delta": 0.0055,
          "percent_delta": 0.016,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.459,
          "after": 0.4416,
          "delta": -0.0174,
          "percent_delta": -0.0379,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.48,
          "after": 0.4592,
          "delta": -0.0208,
          "percent_delta": -0.0433,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.455,
          "after": 0.4766,
          "delta": 0.0216,
          "percent_delta": 0.0475,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.27,
          "after": 1.1843,
          "delta": -0.0857,
          "percent_delta": -0.0675,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 4,
        "deboosted_metrics": 2,
        "better_metrics": 5,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.351,
          "after": 0.4295,
          "delta": 0.0785,
          "percent_delta": 0.2236,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.07,
          "after": 3.8769,
          "delta": -0.1931,
          "percent_delta": -0.0474,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 74
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.3339,
        "predicted_3B": 0.0115,
        "predicted_AB": 3.8769,
        "predicted_AVG": 0.2437,
        "predicted_BB": 0.4262,
        "predicted_H": 0.9448,
        "predicted_HBP": 0.01,
        "predicted_HR": 0.1547,
        "predicted_OBP": 0.3186,
        "predicted_R": 0.4267,
        "predicted_RBI": 0.4437,
        "predicted_SLG": 0.4555,
        "predicted_SO": 1.1933
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.3339,
          "after": 0.3339,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0115,
          "after": 0.0115,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8769,
          "after": 3.8769,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2501,
          "after": 0.2437,
          "delta": -0.0064,
          "percent_delta": -0.0256,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4295,
          "after": 0.4262,
          "delta": -0.0033,
          "percent_delta": -0.0077,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9649,
          "after": 0.9448,
          "delta": -0.0201,
          "percent_delta": -0.0208,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.01,
          "after": 0.01,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1613,
          "after": 0.1547,
          "delta": -0.0066,
          "percent_delta": -0.0409,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3485,
          "after": 0.3186,
          "delta": -0.0299,
          "percent_delta": -0.0858,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4416,
          "after": 0.4267,
          "delta": -0.0149,
          "percent_delta": -0.0337,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4592,
          "after": 0.4437,
          "delta": -0.0155,
          "percent_delta": -0.0338,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4766,
          "after": 0.4555,
          "delta": -0.0211,
          "percent_delta": -0.0443,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1843,
          "after": 1.1933,
          "delta": 0.009,
          "percent_delta": 0.0076,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3485,
          "after": 0.3186,
          "delta": -0.0299,
          "percent_delta": -0.0858,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.07), rates preserved: AVG=0.232 HR/AB=0.038",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.3339,
          "after": 0.0,
          "delta": -0.3339,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0115,
          "after": 0.0,
          "delta": -0.0115,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8769,
          "after": 4.0,
          "delta": 0.1231,
          "percent_delta": 0.0318,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4262,
          "after": 0.0,
          "delta": -0.4262,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9448,
          "after": 1.0,
          "delta": 0.0552,
          "percent_delta": 0.0584,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.01,
          "after": 0.0,
          "delta": -0.01,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1547,
          "after": 0.0,
          "delta": -0.1547,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4437,
          "after": 0.0,
          "delta": -0.4437,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1933,
          "after": 1.0,
          "delta": -0.1933,
          "percent_delta": -0.162,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 3,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.8769,
          "after": 4.0,
          "delta": 0.1231,
          "percent_delta": 0.0318,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4437,
          "after": 0.0,
          "delta": -0.4437,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=12.0, weight=0.114, BvP AVG=0.333)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.8857,
        "bvp": 0.1143
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4267,
          "after": 0.0,
          "delta": -0.4267,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4267,
          "after": 0.0,
          "delta": -0.4267,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2437,
          "after": 0.25,
          "delta": 0.0063,
          "percent_delta": 0.0259,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3186,
          "after": 0.25,
          "delta": -0.0686,
          "percent_delta": -0.2153,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4555,
          "after": 0.25,
          "delta": -0.2055,
          "percent_delta": -0.4512,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2437,
          "after": 0.25,
          "delta": 0.0063,
          "percent_delta": 0.0259,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4555,
          "after": 0.25,
          "delta": -0.2055,
          "percent_delta": -0.4512,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2437,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3186,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4555,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2437,
          "delta": -0.0063,
          "percent_delta": -0.0252,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3186,
          "delta": 0.0686,
          "percent_delta": 0.2745,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4555,
          "delta": 0.2055,
          "percent_delta": 0.8219,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4555,
          "delta": 0.2055,
          "percent_delta": 0.8219,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2437,
          "delta": -0.0063,
          "percent_delta": -0.0252,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.311,
        "after": 0.0,
        "delta": -0.311,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.014,
        "after": 0.0,
        "delta": -0.014,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.07,
        "after": 4.0,
        "delta": -0.07,
        "percent_delta": -0.0172,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.239,
        "after": 0.2437,
        "delta": 0.0047,
        "percent_delta": 0.0197,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.351,
        "after": 0.0,
        "delta": -0.351,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.97,
        "after": 1.0,
        "delta": 0.03,
        "percent_delta": 0.0309,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.16,
        "after": 0.0,
        "delta": -0.16,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.343,
        "after": 0.3186,
        "delta": -0.0244,
        "percent_delta": -0.0711,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.459,
        "after": 0.0,
        "delta": -0.459,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.48,
        "after": 0.0,
        "delta": -0.48,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.455,
        "after": 0.4555,
        "delta": 0.0005,
        "percent_delta": 0.0011,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.27,
        "after": 1.0,
        "delta": -0.27,
        "percent_delta": -0.2126,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 8,
      "boosted_metrics": 0,
      "deboosted_metrics": 8,
      "better_metrics": 1,
      "worse_metrics": 7,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.48,
        "after": 0.0,
        "delta": -0.48,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.311-
predicted_3B0.014-
predicted_AB4.070-
predicted_AVG0.239-
predicted_BB0.351-
predicted_H0.970-
predicted_HR0.160-
predicted_OBP0.343-
predicted_R0.459-
predicted_RBI0.480-
predicted_SLG0.455-
predicted_SO1.270-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.3340.023
predicted_3B0.011-0.003
predicted_AB3.877-0.193
predicted_AVG0.2500.011
predicted_BB0.4290.079
predicted_H0.965-0.005
predicted_HBP0.010-
predicted_HR0.1610.001
predicted_OBP0.3480.005
predicted_R0.442-0.017
predicted_RBI0.459-0.021
predicted_SLG0.4770.022
predicted_SO1.184-0.086
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.3340.000
predicted_3B0.0110.000
predicted_AB3.8770.000
predicted_AVG0.244-0.006
predicted_BB0.426-0.003
predicted_H0.945-0.020
predicted_HBP0.0100.000
predicted_HR0.155-0.007
predicted_OBP0.319-0.030
predicted_R0.427-0.015
predicted_RBI0.444-0.016
predicted_SLG0.456-0.021
predicted_SO1.1930.009
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.07), rates preserved: AVG=0.232 HR/AB=0.038

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=12.0, weight=0.114, BvP AVG=0.333)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.334
predicted_3B0.000-0.011
predicted_AB4.0000.123
predicted_AVG0.2500.006
predicted_BB0.000-0.426
predicted_H1.0000.055
predicted_HR0.000-0.155
predicted_OBP0.250-0.069
predicted_R0.000-0.427
predicted_RBI0.000-0.444
predicted_SLG0.250-0.206
predicted_SO1.000-0.193
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 74
Reference playing time: 4.070
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-15.0006.0003.0000.0001.0002.0001.0004.0003.0000.40000.52630.80000.40000.06670.13330.26670.2000
last_100.2010-34.0007.0003.0000.0002.0003.0005.0008.00011.0000.20590.35710.47060.20590.05880.08820.23530.3235
season0.6074-285.00069.00023.0001.00010.00035.00034.00026.00094.0000.24210.30570.43510.24210.03510.12280.09120.3298
Weighted Prediction From Real Data
MetricValue
predicted_2B0.3650
predicted_3B0.0080
predicted_AB3.6150
predicted_AVG0.2651
predicted_BB0.5360
predicted_H0.9580
predicted_HBP0.0100
predicted_HR0.1630
predicted_OBP0.3560
predicted_R0.4180
predicted_RBI0.4310
predicted_SLG0.5060
predicted_SO1.0680
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.31100.36500.3339model_form_blend
predicted_3B0.01400.00800.0115model_form_blend
predicted_AB4.07003.61503.8769model_form_blend
predicted_AVG0.23900.26510.2501model_form_blend
predicted_BB0.35100.53600.4295model_form_blend
predicted_H0.97000.95800.9649model_form_blend
predicted_HBP-0.01000.0100form_only
predicted_HR0.16000.16300.1613model_form_blend
predicted_OBP0.34300.35600.3485model_form_blend
predicted_R0.45900.41800.4416model_form_blend
predicted_RBI0.48000.43100.4592model_form_blend
predicted_SLG0.45500.50600.4766model_form_blend
predicted_SO1.27001.06801.1843model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date247
Season rows before report date247
Report year2026
Profile rows used74
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.242

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B2
Hitting_3B0
Hitting_AB3
Hitting_AVG0.667
Hitting_BB1
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB4
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260617_SF@ATL_2
game_typefull
mlbID646240
playerID646240
playerNameRafael Devers
pos1B
startedTrue
startingPositionDH
teamSF
teamID24
game_date2026-06-17
sl_k_percent30.1
sl_bb_percent7.9
sl_woba0.317
sl_xwoba0.295
sl_xba0.219
sl_xslg0.4
sl_sweet_spot_percent31.8
sl_barrel_batted_rate9.3
sl_hard_hit_percent49.2
sl_exit_velocity_avg91.9
sl_launch_angle_avg13.6
sl_whiff_percent31.0
sl_swing_percent49.6
Willy Adames (642715) · BATTER · C · Team SF
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 249
All-history rows before 20260618: 249
System season_avg: 0.2310
Data season_avg (2026 season-to-date): 0.2495
Diff (system - data): -0.0185
System opponent_avg: 0.2630
System season_avg diverges from 2026 season-to-date by -0.0185. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2501.0000.000Hitting_2B0.3130.0000.6871.000
predicted_3B0.0140.0000.000Hitting_3B0.0200.000-0.0200.000
predicted_AB4.3605.0004.000Hitting_AB4.1694.0000.8311.000
predicted_AVG0.2120.2000.250Hitting_AVG0.2500.250-0.050-0.050
predicted_BB0.2220.0000.000Hitting_BB0.1890.000-0.1890.000
predicted_CS-0.0000.000BaseRunning_CS0.0320.000-0.0320.000
predicted_H0.9201.0001.000Hitting_H1.0401.000-0.0400.000
predicted_HR0.2000.0000.000Hitting_HR0.1451.000-0.145-1.000
predicted_OBP0.2550.2000.250Hitting_OBP0.2840.250-0.084-0.050
predicted_R0.5001.0000.000Hitting_R0.5261.0000.4740.000
predicted_RBI0.4501.0000.000Hitting_RBI0.3981.0000.6020.000
predicted_SLG0.4080.4000.250Hitting_SLG0.4381.000-0.038-0.600
predicted_SO1.1672.0001.000Hitting_SO1.2091.0000.7911.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectboosted
Changed Metrics10
Boosted Metrics6
Deboosted Metrics4
Better Metrics5
Worse Metrics5
Biggest Boostpredicted_SO: 1.1670 -> 2.0000 (boost 0.8330, worse)
Biggest Deboostpredicted_BB: 0.2220 -> 0.0000 (deboost -0.2220, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend40404-predicted_AB: 4.3600 -> 4.1265 (deboost -0.2335, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_SLG: 0.4114 -> 0.4033 (deboost -0.0081, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71625predicted_H: 0.8278 -> 1.0000 (boost 0.1722, better)predicted_RBI: 0.4099 -> 0.0000 (deboost -0.4099, worse)AB rounded to 4 (raw=4.36), rates preserved: AVG=0.190 HR/AB=0.046
5bvp_blend00000--Sample-size BvP blend (BvP AB=19.0, weight=0.155, BvP AVG=0.263)
6consistency_constraints10101-predicted_R: 0.4524 -> 0.0000 (deboost -0.4524, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context32121predicted_AVG: 0.2006 -> 0.2500 (boost 0.0494, better)predicted_SLG: 0.4033 -> 0.2500 (deboost -0.1533, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference55041predicted_2B: 0.0000 -> 1.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
9current_json_final31212predicted_SLG: 0.2500 -> 0.4033 (boost 0.1533, better)predicted_AVG: 0.2500 -> 0.2006 (deboost -0.0494, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "642715",
  "player_name": "Willy Adames",
  "position": "C",
  "team": "SF",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.25,
        "predicted_3B": 0.014,
        "predicted_AB": 4.36,
        "predicted_AVG": 0.212,
        "predicted_BB": 0.222,
        "predicted_H": 0.92,
        "predicted_HR": 0.2,
        "predicted_OBP": 0.255,
        "predicted_R": 0.5,
        "predicted_RBI": 0.45,
        "predicted_SLG": 0.408,
        "predicted_SO": 1.167
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2068,
        "predicted_3B": 0.0119,
        "predicted_AB": 4.1265,
        "predicted_AVG": 0.205,
        "predicted_BB": 0.1962,
        "predicted_H": 0.8454,
        "predicted_HBP": 0.01,
        "predicted_HR": 0.2106,
        "predicted_OBP": 0.2438,
        "predicted_R": 0.4682,
        "predicted_RBI": 0.4242,
        "predicted_SLG": 0.4114,
        "predicted_SO": 1.1183
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.25,
          "after": 0.2068,
          "delta": -0.0432,
          "percent_delta": -0.1728,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.014,
          "after": 0.0119,
          "delta": -0.0021,
          "percent_delta": -0.15,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.36,
          "after": 4.1265,
          "delta": -0.2335,
          "percent_delta": -0.0536,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.212,
          "after": 0.205,
          "delta": -0.007,
          "percent_delta": -0.033,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.222,
          "after": 0.1962,
          "delta": -0.0258,
          "percent_delta": -0.1162,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.92,
          "after": 0.8454,
          "delta": -0.0746,
          "percent_delta": -0.0811,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.2,
          "after": 0.2106,
          "delta": 0.0106,
          "percent_delta": 0.053,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.255,
          "after": 0.2438,
          "delta": -0.0112,
          "percent_delta": -0.0439,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5,
          "after": 0.4682,
          "delta": -0.0318,
          "percent_delta": -0.0636,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.45,
          "after": 0.4242,
          "delta": -0.0258,
          "percent_delta": -0.0573,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.408,
          "after": 0.4114,
          "delta": 0.0034,
          "percent_delta": 0.0083,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.167,
          "after": 1.1183,
          "delta": -0.0487,
          "percent_delta": -0.0417,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 0,
        "deboosted_metrics": 4,
        "better_metrics": 0,
        "worse_metrics": 4,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.36,
          "after": 4.1265,
          "delta": -0.2335,
          "percent_delta": -0.0536,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 72
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2068,
        "predicted_3B": 0.0119,
        "predicted_AB": 4.1265,
        "predicted_AVG": 0.2006,
        "predicted_BB": 0.1947,
        "predicted_H": 0.8278,
        "predicted_HBP": 0.01,
        "predicted_HR": 0.202,
        "predicted_OBP": 0.2366,
        "predicted_R": 0.4524,
        "predicted_RBI": 0.4099,
        "predicted_SLG": 0.4033,
        "predicted_SO": 1.1268
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2068,
          "after": 0.2068,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0119,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.1265,
          "after": 4.1265,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.205,
          "after": 0.2006,
          "delta": -0.0044,
          "percent_delta": -0.0215,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.1962,
          "after": 0.1947,
          "delta": -0.0015,
          "percent_delta": -0.0076,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8454,
          "after": 0.8278,
          "delta": -0.0176,
          "percent_delta": -0.0208,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.01,
          "after": 0.01,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2106,
          "after": 0.202,
          "delta": -0.0086,
          "percent_delta": -0.0408,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2438,
          "after": 0.2366,
          "delta": -0.0072,
          "percent_delta": -0.0295,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4682,
          "after": 0.4524,
          "delta": -0.0158,
          "percent_delta": -0.0337,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4242,
          "after": 0.4099,
          "delta": -0.0143,
          "percent_delta": -0.0337,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4114,
          "after": 0.4033,
          "delta": -0.0081,
          "percent_delta": -0.0197,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1183,
          "after": 1.1268,
          "delta": 0.0085,
          "percent_delta": 0.0076,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4114,
          "after": 0.4033,
          "delta": -0.0081,
          "percent_delta": -0.0197,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.36), rates preserved: AVG=0.190 HR/AB=0.046",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2068,
          "after": 0.0,
          "delta": -0.2068,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0,
          "delta": -0.0119,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.1265,
          "after": 4.0,
          "delta": -0.1265,
          "percent_delta": -0.0307,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1947,
          "after": 0.0,
          "delta": -0.1947,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8278,
          "after": 1.0,
          "delta": 0.1722,
          "percent_delta": 0.208,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.01,
          "after": 0.0,
          "delta": -0.01,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.202,
          "after": 0.0,
          "delta": -0.202,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4099,
          "after": 0.0,
          "delta": -0.4099,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1268,
          "after": 1.0,
          "delta": -0.1268,
          "percent_delta": -0.1125,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.8278,
          "after": 1.0,
          "delta": 0.1722,
          "percent_delta": 0.208,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4099,
          "after": 0.0,
          "delta": -0.4099,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=19.0, weight=0.155, BvP AVG=0.263)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.8449,
        "bvp": 0.1551
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4524,
          "after": 0.0,
          "delta": -0.4524,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4524,
          "after": 0.0,
          "delta": -0.4524,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2006,
          "after": 0.25,
          "delta": 0.0494,
          "percent_delta": 0.2463,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2366,
          "after": 0.25,
          "delta": 0.0134,
          "percent_delta": 0.0566,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4033,
          "after": 0.25,
          "delta": -0.1533,
          "percent_delta": -0.3801,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2006,
          "after": 0.25,
          "delta": 0.0494,
          "percent_delta": 0.2463,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4033,
          "after": 0.25,
          "delta": -0.1533,
          "percent_delta": -0.3801,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 5.0,
          "delta": 1.0,
          "percent_delta": 0.25,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 5,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.2006,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2366,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4033,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2006,
          "delta": -0.0494,
          "percent_delta": -0.1976,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2366,
          "delta": -0.0134,
          "percent_delta": -0.0535,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4033,
          "delta": 0.1533,
          "percent_delta": 0.6134,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4033,
          "delta": 0.1533,
          "percent_delta": 0.6134,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2006,
          "delta": -0.0494,
          "percent_delta": -0.1976,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.25,
        "after": 1.0,
        "delta": 0.75,
        "percent_delta": 3.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.014,
        "after": 0.0,
        "delta": -0.014,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.36,
        "after": 5.0,
        "delta": 0.64,
        "percent_delta": 0.1468,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.212,
        "after": 0.2006,
        "delta": -0.0114,
        "percent_delta": -0.0538,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.222,
        "after": 0.0,
        "delta": -0.222,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.92,
        "after": 1.0,
        "delta": 0.08,
        "percent_delta": 0.087,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.2,
        "after": 0.0,
        "delta": -0.2,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.255,
        "after": 0.2366,
        "delta": -0.0184,
        "percent_delta": -0.0722,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.5,
        "after": 1.0,
        "delta": 0.5,
        "percent_delta": 1.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.45,
        "after": 1.0,
        "delta": 0.55,
        "percent_delta": 1.2222,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.408,
        "after": 0.4033,
        "delta": -0.0047,
        "percent_delta": -0.0115,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.167,
        "after": 2.0,
        "delta": 0.833,
        "percent_delta": 0.7138,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 6,
      "deboosted_metrics": 4,
      "better_metrics": 5,
      "worse_metrics": 5,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 1.167,
        "after": 2.0,
        "delta": 0.833,
        "percent_delta": 0.7138,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_BB",
        "before": 0.222,
        "after": 0.0,
        "delta": -0.222,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "boosted"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.250-
predicted_3B0.014-
predicted_AB4.360-
predicted_AVG0.212-
predicted_BB0.222-
predicted_H0.920-
predicted_HR0.200-
predicted_OBP0.255-
predicted_R0.500-
predicted_RBI0.450-
predicted_SLG0.408-
predicted_SO1.167-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.207-0.043
predicted_3B0.012-0.002
predicted_AB4.127-0.234
predicted_AVG0.205-0.007
predicted_BB0.196-0.026
predicted_H0.845-0.075
predicted_HBP0.010-
predicted_HR0.2110.011
predicted_OBP0.244-0.011
predicted_R0.468-0.032
predicted_RBI0.424-0.026
predicted_SLG0.4110.003
predicted_SO1.118-0.049
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2070.000
predicted_3B0.0120.000
predicted_AB4.1270.000
predicted_AVG0.201-0.004
predicted_BB0.195-0.002
predicted_H0.828-0.018
predicted_HBP0.0100.000
predicted_HR0.202-0.009
predicted_OBP0.237-0.007
predicted_R0.452-0.016
predicted_RBI0.410-0.014
predicted_SLG0.403-0.008
predicted_SO1.1270.008
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.36), rates preserved: AVG=0.190 HR/AB=0.046

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=19.0, weight=0.155, BvP AVG=0.263)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.207
predicted_3B0.000-0.012
predicted_AB4.000-0.127
predicted_AVG0.2500.049
predicted_BB0.000-0.195
predicted_H1.0000.172
predicted_HR0.000-0.202
predicted_OBP0.2500.013
predicted_R0.000-0.452
predicted_RBI0.000-0.410
predicted_SLG0.250-0.153
predicted_SO1.000-0.127
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB5.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R1.0001.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 72
Reference playing time: 4.360
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0003.0000.0000.0002.0002.0002.0000.0003.0000.17650.17650.52940.17650.11770.11770.00000.1765
last_100.2010-37.0003.0000.0000.0002.0002.0002.0001.00013.0000.08110.10530.24320.08110.05410.05410.02700.3513
season0.6072-286.00066.00018.0001.00013.00031.00036.00016.00084.0000.23080.27300.43710.23080.04540.10840.05590.2937
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1480
predicted_3B0.0090
predicted_AB3.8090
predicted_AVG0.1954
predicted_BB0.1610
predicted_H0.7440
predicted_HBP0.0100
predicted_HR0.2250
predicted_OBP0.2285
predicted_R0.4250
predicted_RBI0.3890
predicted_SLG0.4161
predicted_SO1.0520
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.25000.14800.2068model_form_blend
predicted_3B0.01400.00900.0119model_form_blend
predicted_AB4.36003.80904.1265model_form_blend
predicted_AVG0.21200.19540.2050model_form_blend
predicted_BB0.22200.16100.1962model_form_blend
predicted_H0.92000.74400.8454model_form_blend
predicted_HBP-0.01000.0100form_only
predicted_HR0.20000.22500.2106model_form_blend
predicted_OBP0.25500.22850.2438model_form_blend
predicted_R0.50000.42500.4682model_form_blend
predicted_RBI0.45000.38900.4242model_form_blend
predicted_SLG0.40800.41610.4114model_form_blend
predicted_SO1.16701.05201.1183model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date249
Season rows before report date249
Report year2026
Profile rows used72
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB5
H1
2B1
3B0
HR0
R1
RBI1
BB0
SO2
SF0
HBP0
season_avg0.231

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R1
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB4
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedSS
gameID20260617_SF@ATL_2
game_typefull
mlbID642715
playerID642715
playerNameWilly Adames
posSS
startedTrue
startingPositionSS
teamSF
teamID24
game_date2026-06-17
sl_k_percent27.4
sl_bb_percent5.5
sl_woba0.307
sl_xwoba0.295
sl_xba0.223
sl_xslg0.409
sl_sweet_spot_percent37.6
sl_barrel_batted_rate9.8
sl_hard_hit_percent43.4
sl_exit_velocity_avg89.0
sl_launch_angle_avg22.5
sl_whiff_percent27.9
sl_swing_percent48.1
Luis Arraez (650333) · BATTER · 1B · Team SF
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 244
All-history rows before 20260618: 244
System season_avg: 0.3360
Data season_avg (2026 season-to-date): 0.3384
Diff (system - data): -0.0024
System opponent_avg: 0.1670

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2250.0000.000Hitting_2B0.1970.000-0.1970.000
predicted_3B0.0850.0000.000Hitting_3B0.0700.000-0.0700.000
predicted_AB4.3704.0004.000Hitting_AB4.0824.000-0.0820.000
predicted_AVG0.2720.2500.250Hitting_AVG0.3380.500-0.088-0.250
predicted_BB0.2250.0000.000Hitting_BB0.2621.000-0.262-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H1.1901.0001.000Hitting_H1.3812.000-0.381-1.000
predicted_HR0.1000.0000.000Hitting_HR0.0451.000-0.045-1.000
predicted_OBP0.3580.2500.250Hitting_OBP0.3790.600-0.129-0.350
predicted_R0.5630.0001.000Hitting_R0.5702.000-0.570-2.000
predicted_RBI0.5400.0000.000Hitting_RBI0.4394.000-0.439-4.000
predicted_SLG0.4690.2500.250Hitting_SLG0.4541.250-0.204-1.000
predicted_SO0.1691.0001.000Hitting_SO0.1840.0000.8161.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics2
Deboosted Metrics9
Better Metrics1
Worse Metrics10
Biggest Boostpredicted_SO: 0.1690 -> 1.0000 (boost 0.8310, worse)
Biggest Deboostpredicted_R: 0.5630 -> 0.0000 (deboost -0.5630, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend54141predicted_H: 1.1900 -> 1.2782 (boost 0.0882, better)predicted_AB: 4.3700 -> 4.2279 (deboost -0.1421, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3665 -> 0.3301 (deboost -0.0364, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling81708predicted_SO: 0.1788 -> 1.0000 (boost 0.8212, worse)predicted_RBI: 0.5225 -> 0.0000 (deboost -0.5225, worse)AB rounded to 4 (raw=4.37), rates preserved: AVG=0.286 HR/AB=0.021
5bvp_blend00000--Sample-size BvP blend (BvP AB=8.0, weight=0.084, BvP AVG=0.125)
6consistency_constraints11010predicted_R: 0.5846 -> 1.0000 (boost 0.4154, better)-Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context30303-predicted_SLG: 0.4653 -> 0.2500 (deboost -0.2153, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference10101-predicted_R: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final33030predicted_SLG: 0.2500 -> 0.4653 (boost 0.2153, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "650333",
  "player_name": "Luis Arraez",
  "position": "1B",
  "team": "SF",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.225,
        "predicted_3B": 0.085,
        "predicted_AB": 4.37,
        "predicted_AVG": 0.272,
        "predicted_BB": 0.225,
        "predicted_H": 1.19,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.358,
        "predicted_R": 0.563,
        "predicted_RBI": 0.54,
        "predicted_SLG": 0.469,
        "predicted_SO": 0.169
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2428,
        "predicted_3B": 0.0994,
        "predicted_AB": 4.2279,
        "predicted_AVG": 0.3036,
        "predicted_BB": 0.2169,
        "predicted_H": 1.2782,
        "predicted_HBP": 0.027,
        "predicted_HR": 0.0953,
        "predicted_OBP": 0.3665,
        "predicted_R": 0.605,
        "predicted_RBI": 0.5408,
        "predicted_SLG": 0.4984,
        "predicted_SO": 0.1775
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.225,
          "after": 0.2428,
          "delta": 0.0178,
          "percent_delta": 0.0791,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.085,
          "after": 0.0994,
          "delta": 0.0144,
          "percent_delta": 0.1694,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.37,
          "after": 4.2279,
          "delta": -0.1421,
          "percent_delta": -0.0325,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.272,
          "after": 0.3036,
          "delta": 0.0316,
          "percent_delta": 0.1162,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.225,
          "after": 0.2169,
          "delta": -0.0081,
          "percent_delta": -0.036,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.19,
          "after": 1.2782,
          "delta": 0.0882,
          "percent_delta": 0.0741,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.0953,
          "delta": -0.0047,
          "percent_delta": -0.047,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.358,
          "after": 0.3665,
          "delta": 0.0085,
          "percent_delta": 0.0237,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.563,
          "after": 0.605,
          "delta": 0.042,
          "percent_delta": 0.0746,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.54,
          "after": 0.5408,
          "delta": 0.0008,
          "percent_delta": 0.0015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.469,
          "after": 0.4984,
          "delta": 0.0294,
          "percent_delta": 0.0627,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.169,
          "after": 0.1775,
          "delta": 0.0085,
          "percent_delta": 0.0503,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 4,
        "deboosted_metrics": 1,
        "better_metrics": 4,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 1.19,
          "after": 1.2782,
          "delta": 0.0882,
          "percent_delta": 0.0741,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.37,
          "after": 4.2279,
          "delta": -0.1421,
          "percent_delta": -0.0325,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 71
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2428,
        "predicted_3B": 0.0994,
        "predicted_AB": 4.2279,
        "predicted_AVG": 0.296,
        "predicted_BB": 0.2153,
        "predicted_H": 1.2516,
        "predicted_HBP": 0.027,
        "predicted_HR": 0.0914,
        "predicted_OBP": 0.3301,
        "predicted_R": 0.5846,
        "predicted_RBI": 0.5225,
        "predicted_SLG": 0.4653,
        "predicted_SO": 0.1788
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2428,
          "after": 0.2428,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0994,
          "after": 0.0994,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.2279,
          "after": 4.2279,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.3036,
          "after": 0.296,
          "delta": -0.0076,
          "percent_delta": -0.025,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2169,
          "after": 0.2153,
          "delta": -0.0016,
          "percent_delta": -0.0074,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.2782,
          "after": 1.2516,
          "delta": -0.0266,
          "percent_delta": -0.0208,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.027,
          "after": 0.027,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0953,
          "after": 0.0914,
          "delta": -0.0039,
          "percent_delta": -0.0409,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3665,
          "after": 0.3301,
          "delta": -0.0364,
          "percent_delta": -0.0993,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.605,
          "after": 0.5846,
          "delta": -0.0204,
          "percent_delta": -0.0337,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5408,
          "after": 0.5225,
          "delta": -0.0183,
          "percent_delta": -0.0338,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4984,
          "after": 0.4653,
          "delta": -0.0331,
          "percent_delta": -0.0664,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.1775,
          "after": 0.1788,
          "delta": 0.0013,
          "percent_delta": 0.0073,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3665,
          "after": 0.3301,
          "delta": -0.0364,
          "percent_delta": -0.0993,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.37), rates preserved: AVG=0.286 HR/AB=0.021",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2428,
          "after": 0.0,
          "delta": -0.2428,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0994,
          "after": 0.0,
          "delta": -0.0994,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AB",
          "before": 4.2279,
          "after": 4.0,
          "delta": -0.2279,
          "percent_delta": -0.0539,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2153,
          "after": 0.0,
          "delta": -0.2153,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.2516,
          "after": 1.0,
          "delta": -0.2516,
          "percent_delta": -0.201,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.027,
          "after": 0.0,
          "delta": -0.027,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0914,
          "after": 0.0,
          "delta": -0.0914,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5225,
          "after": 0.0,
          "delta": -0.5225,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.1788,
          "after": 1.0,
          "delta": 0.8212,
          "percent_delta": 4.5928,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 1,
        "deboosted_metrics": 7,
        "better_metrics": 0,
        "worse_metrics": 8,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.1788,
          "after": 1.0,
          "delta": 0.8212,
          "percent_delta": 4.5928,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.5225,
          "after": 0.0,
          "delta": -0.5225,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=8.0, weight=0.084, BvP AVG=0.125)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9158,
        "bvp": 0.0842
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5846,
          "after": 1.0,
          "delta": 0.4154,
          "percent_delta": 0.7106,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5846,
          "after": 1.0,
          "delta": 0.4154,
          "percent_delta": 0.7106,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.296,
          "after": 0.25,
          "delta": -0.046,
          "percent_delta": -0.1554,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3301,
          "after": 0.25,
          "delta": -0.0801,
          "percent_delta": -0.2427,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4653,
          "after": 0.25,
          "delta": -0.2153,
          "percent_delta": -0.4627,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4653,
          "after": 0.25,
          "delta": -0.2153,
          "percent_delta": -0.4627,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.296,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3301,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4653,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.296,
          "delta": 0.046,
          "percent_delta": 0.1841,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3301,
          "delta": 0.0801,
          "percent_delta": 0.3206,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4653,
          "delta": 0.2153,
          "percent_delta": 0.8614,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4653,
          "delta": 0.2153,
          "percent_delta": 0.8614,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.225,
        "after": 0.0,
        "delta": -0.225,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.085,
        "after": 0.0,
        "delta": -0.085,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AB",
        "before": 4.37,
        "after": 4.0,
        "delta": -0.37,
        "percent_delta": -0.0847,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.272,
        "after": 0.296,
        "delta": 0.024,
        "percent_delta": 0.0882,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.225,
        "after": 0.0,
        "delta": -0.225,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.19,
        "after": 1.0,
        "delta": -0.19,
        "percent_delta": -0.1597,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.358,
        "after": 0.3301,
        "delta": -0.0279,
        "percent_delta": -0.0779,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.563,
        "after": 0.0,
        "delta": -0.563,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.54,
        "after": 0.0,
        "delta": -0.54,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.469,
        "after": 0.4653,
        "delta": -0.0037,
        "percent_delta": -0.0079,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.169,
        "after": 1.0,
        "delta": 0.831,
        "percent_delta": 4.9172,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 2,
      "deboosted_metrics": 9,
      "better_metrics": 1,
      "worse_metrics": 10,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.169,
        "after": 1.0,
        "delta": 0.831,
        "percent_delta": 4.9172,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_R",
        "before": 0.563,
        "after": 0.0,
        "delta": -0.563,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.225-
predicted_3B0.085-
predicted_AB4.370-
predicted_AVG0.272-
predicted_BB0.225-
predicted_H1.190-
predicted_HR0.100-
predicted_OBP0.358-
predicted_R0.563-
predicted_RBI0.540-
predicted_SLG0.469-
predicted_SO0.169-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2430.018
predicted_3B0.0990.014
predicted_AB4.228-0.142
predicted_AVG0.3040.032
predicted_BB0.217-0.008
predicted_H1.2780.088
predicted_HBP0.027-
predicted_HR0.095-0.005
predicted_OBP0.3660.009
predicted_R0.6050.042
predicted_RBI0.5410.001
predicted_SLG0.4980.029
predicted_SO0.1770.008
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2430.000
predicted_3B0.0990.000
predicted_AB4.2280.000
predicted_AVG0.296-0.008
predicted_BB0.215-0.002
predicted_H1.252-0.027
predicted_HBP0.0270.000
predicted_HR0.091-0.004
predicted_OBP0.330-0.036
predicted_R0.585-0.020
predicted_RBI0.522-0.018
predicted_SLG0.465-0.033
predicted_SO0.1790.001
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.37), rates preserved: AVG=0.286 HR/AB=0.021

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=8.0, weight=0.084, BvP AVG=0.125)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.243
predicted_3B0.000-0.099
predicted_AB4.000-0.228
predicted_AVG0.250-0.046
predicted_BB0.000-0.215
predicted_H1.000-0.252
predicted_HR0.000-0.091
predicted_OBP0.250-0.080
predicted_R1.0000.415
predicted_RBI0.000-0.522
predicted_SLG0.250-0.215
predicted_SO1.0000.821
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 71
Reference playing time: 4.370
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.0008.0002.0001.0001.0005.0005.0001.0000.0000.40000.42860.75000.40000.05000.25000.05000.0000
last_100.2010-43.00016.0003.0002.0001.0005.0007.0001.0001.0000.37210.38640.60470.37210.02330.11630.02330.0233
season0.6071-283.00095.00016.0006.0003.00029.00040.00016.00012.0000.33570.36890.46640.33570.01060.10250.05650.0424
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2670
predicted_3B0.1190
predicted_AB4.0350
predicted_AVG0.3465
predicted_BB0.2060
predicted_H1.3980
predicted_HBP0.0270
predicted_HR0.0890
predicted_OBP0.3781
predicted_R0.6620
predicted_RBI0.5420
predicted_SLG0.5383
predicted_SO0.1890
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.22500.26700.2428model_form_blend
predicted_3B0.08500.11900.0994model_form_blend
predicted_AB4.37004.03504.2279model_form_blend
predicted_AVG0.27200.34650.3036model_form_blend
predicted_BB0.22500.20600.2169model_form_blend
predicted_H1.19001.39801.2782model_form_blend
predicted_HBP-0.02700.0270form_only
predicted_HR0.10000.08900.0953model_form_blend
predicted_OBP0.35800.37810.3665model_form_blend
predicted_R0.56300.66200.6050model_form_blend
predicted_RBI0.54000.54200.5408model_form_blend
predicted_SLG0.46900.53830.4984model_form_blend
predicted_SO0.16900.18900.1775model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date244
Season rows before report date244
Report year2026
Profile rows used71
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.336

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB1
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.5
Hitting_BB1
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R2
Hitting_RBI4
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB5
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_SF@ATL_2
game_typefull
mlbID650333
playerID650333
playerNameLuis Arraez
pos2B
startedTrue
startingPosition2B
teamSF
teamID24
game_date2026-06-17
sl_k_percent4.1
sl_bb_percent5.1
sl_woba0.35
sl_xwoba0.301
sl_xba0.287
sl_xslg0.369
sl_sweet_spot_percent40.5
sl_barrel_batted_rate0.4
sl_hard_hit_percent22.2
sl_exit_velocity_avg87.4
sl_launch_angle_avg14.8
sl_whiff_percent8.8
sl_swing_percent50.9
Drew Gilbert (687551) · BATTER · 2B · Team SF
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 132
All-history rows before 20260618: 132
System season_avg: 0.2210
Data season_avg (2026 season-to-date): 0.2392
Diff (system - data): -0.0182
System opponent_avg: 0.2210
System season_avg diverges from 2026 season-to-date by -0.0182. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1400.0000.000Hitting_2B0.1520.000-0.1520.000
predicted_3B0.0401.0000.000Hitting_3B0.0450.0000.9551.000
predicted_AB3.0105.0003.000Hitting_AB3.1673.0001.8332.000
predicted_AVG0.2300.2000.333Hitting_AVG0.2390.000-0.0390.200
predicted_BB0.2000.0000.000Hitting_BB0.2420.000-0.2420.000
predicted_CS-0.0000.000BaseRunning_CS0.0081.000-0.008-1.000
predicted_H0.6901.0001.000Hitting_H0.7580.0000.2421.000
predicted_HR0.0800.0000.000Hitting_HR0.0680.000-0.0680.000
predicted_OBP0.2960.2000.333Hitting_OBP0.3060.250-0.106-0.050
predicted_R0.3401.0000.000Hitting_R0.3331.0000.6670.000
predicted_RBI0.3700.0000.000Hitting_RBI0.2730.000-0.2730.000
predicted_SLG0.3340.6000.333Hitting_SLG0.3800.0000.2200.600
predicted_SO0.6201.0001.000Hitting_SO0.6440.0000.3561.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics12
Boosted Metrics6
Deboosted Metrics6
Better Metrics5
Worse Metrics7
Biggest Boostpredicted_AB: 3.0100 -> 5.0000 (boost 1.9900, better)
Biggest Deboostpredicted_RBI: 0.3700 -> 0.0000 (deboost -0.3700, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend41313predicted_BB: 0.2000 -> 0.2540 (boost 0.0540, better)predicted_H: 0.6900 -> 0.6299 (deboost -0.0601, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot21111predicted_SLG: 0.3238 -> 0.3459 (boost 0.0221, better)predicted_OBP: 0.2931 -> 0.2699 (deboost -0.0232, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_H: 0.6168 -> 1.0000 (boost 0.3832, better)predicted_RBI: 0.3380 -> 0.0000 (deboost -0.3380, worse)AB rounded to 3 (raw=3.01), rates preserved: AVG=0.205 HR/AB=0.021
5consistency_constraints10101-predicted_R: 0.3632 -> 0.0000 (deboost -0.3632, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2079 -> 0.3330 (boost 0.1251, better)predicted_SLG: 0.3459 -> 0.3330 (deboost -0.0129, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference33030predicted_AB: 3.0000 -> 5.0000 (boost 2.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.3459 (boost 0.0129, better)predicted_AVG: 0.3330 -> 0.2079 (deboost -0.1251, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "687551",
  "player_name": "Drew Gilbert",
  "position": "2B",
  "team": "SF",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.14,
        "predicted_3B": 0.04,
        "predicted_AB": 3.01,
        "predicted_AVG": 0.23,
        "predicted_BB": 0.2,
        "predicted_H": 0.69,
        "predicted_HR": 0.08,
        "predicted_OBP": 0.296,
        "predicted_R": 0.34,
        "predicted_RBI": 0.37,
        "predicted_SLG": 0.334,
        "predicted_SO": 0.62
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1533,
        "predicted_3B": 0.0327,
        "predicted_AB": 2.9673,
        "predicted_AVG": 0.2123,
        "predicted_BB": 0.254,
        "predicted_H": 0.6299,
        "predicted_HBP": 0.083,
        "predicted_HR": 0.0663,
        "predicted_OBP": 0.2931,
        "predicted_R": 0.3759,
        "predicted_RBI": 0.3498,
        "predicted_SLG": 0.3238,
        "predicted_SO": 0.6192
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.14,
          "after": 0.1533,
          "delta": 0.0133,
          "percent_delta": 0.095,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.04,
          "after": 0.0327,
          "delta": -0.0073,
          "percent_delta": -0.1825,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.01,
          "after": 2.9673,
          "delta": -0.0427,
          "percent_delta": -0.0142,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.23,
          "after": 0.2123,
          "delta": -0.0177,
          "percent_delta": -0.077,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2,
          "after": 0.254,
          "delta": 0.054,
          "percent_delta": 0.27,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.69,
          "after": 0.6299,
          "delta": -0.0601,
          "percent_delta": -0.0871,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.08,
          "after": 0.0663,
          "delta": -0.0137,
          "percent_delta": -0.1713,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.296,
          "after": 0.2931,
          "delta": -0.0029,
          "percent_delta": -0.0098,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.34,
          "after": 0.3759,
          "delta": 0.0359,
          "percent_delta": 0.1056,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.37,
          "after": 0.3498,
          "delta": -0.0202,
          "percent_delta": -0.0546,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.334,
          "after": 0.3238,
          "delta": -0.0102,
          "percent_delta": -0.0305,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.62,
          "after": 0.6192,
          "delta": -0.0008,
          "percent_delta": -0.0013,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 1,
        "deboosted_metrics": 3,
        "better_metrics": 1,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.2,
          "after": 0.254,
          "delta": 0.054,
          "percent_delta": 0.27,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 0.69,
          "after": 0.6299,
          "delta": -0.0601,
          "percent_delta": -0.0871,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 50
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1533,
        "predicted_3B": 0.0327,
        "predicted_AB": 2.9673,
        "predicted_AVG": 0.2079,
        "predicted_BB": 0.2521,
        "predicted_H": 0.6168,
        "predicted_HBP": 0.083,
        "predicted_HR": 0.0636,
        "predicted_OBP": 0.2699,
        "predicted_R": 0.3632,
        "predicted_RBI": 0.338,
        "predicted_SLG": 0.3459,
        "predicted_SO": 0.6239
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1533,
          "after": 0.1533,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0327,
          "after": 0.0327,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9673,
          "after": 2.9673,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2123,
          "after": 0.2079,
          "delta": -0.0044,
          "percent_delta": -0.0207,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.254,
          "after": 0.2521,
          "delta": -0.0019,
          "percent_delta": -0.0075,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6299,
          "after": 0.6168,
          "delta": -0.0131,
          "percent_delta": -0.0208,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.083,
          "after": 0.083,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0663,
          "after": 0.0636,
          "delta": -0.0027,
          "percent_delta": -0.0407,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2931,
          "after": 0.2699,
          "delta": -0.0232,
          "percent_delta": -0.0792,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3759,
          "after": 0.3632,
          "delta": -0.0127,
          "percent_delta": -0.0338,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3498,
          "after": 0.338,
          "delta": -0.0118,
          "percent_delta": -0.0337,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3238,
          "after": 0.3459,
          "delta": 0.0221,
          "percent_delta": 0.0683,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6192,
          "after": 0.6239,
          "delta": 0.0047,
          "percent_delta": 0.0076,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.3238,
          "after": 0.3459,
          "delta": 0.0221,
          "percent_delta": 0.0683,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.2931,
          "after": 0.2699,
          "delta": -0.0232,
          "percent_delta": -0.0792,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.01), rates preserved: AVG=0.205 HR/AB=0.021",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1533,
          "after": 0.0,
          "delta": -0.1533,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0327,
          "after": 0.0,
          "delta": -0.0327,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9673,
          "after": 3.0,
          "delta": 0.0327,
          "percent_delta": 0.011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2521,
          "after": 0.0,
          "delta": -0.2521,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6168,
          "after": 1.0,
          "delta": 0.3832,
          "percent_delta": 0.6213,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.083,
          "after": 0.0,
          "delta": -0.083,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0636,
          "after": 0.0,
          "delta": -0.0636,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.338,
          "after": 0.0,
          "delta": -0.338,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6239,
          "after": 1.0,
          "delta": 0.3761,
          "percent_delta": 0.6028,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.6168,
          "after": 1.0,
          "delta": 0.3832,
          "percent_delta": 0.6213,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.338,
          "after": 0.0,
          "delta": -0.338,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3632,
          "after": 0.0,
          "delta": -0.3632,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3632,
          "after": 0.0,
          "delta": -0.3632,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2079,
          "after": 0.333,
          "delta": 0.1251,
          "percent_delta": 0.6017,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2699,
          "after": 0.333,
          "delta": 0.0631,
          "percent_delta": 0.2338,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3459,
          "after": 0.333,
          "delta": -0.0129,
          "percent_delta": -0.0373,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2079,
          "after": 0.333,
          "delta": 0.1251,
          "percent_delta": 0.6017,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3459,
          "after": 0.333,
          "delta": -0.0129,
          "percent_delta": -0.0373,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 1.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 5.0,
          "delta": 2.0,
          "percent_delta": 0.6667,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 5.0,
          "delta": 2.0,
          "percent_delta": 0.6667,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 1.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.2079,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2699,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3459,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2079,
          "delta": -0.1251,
          "percent_delta": -0.3758,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2699,
          "delta": -0.0631,
          "percent_delta": -0.1895,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3459,
          "delta": 0.0129,
          "percent_delta": 0.0386,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3459,
          "delta": 0.0129,
          "percent_delta": 0.0386,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2079,
          "delta": -0.1251,
          "percent_delta": -0.3758,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.14,
        "after": 0.0,
        "delta": -0.14,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.04,
        "after": 1.0,
        "delta": 0.96,
        "percent_delta": 24.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AB",
        "before": 3.01,
        "after": 5.0,
        "delta": 1.99,
        "percent_delta": 0.6611,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.23,
        "after": 0.2079,
        "delta": -0.0221,
        "percent_delta": -0.0961,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.2,
        "after": 0.0,
        "delta": -0.2,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.69,
        "after": 1.0,
        "delta": 0.31,
        "percent_delta": 0.4493,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.08,
        "after": 0.0,
        "delta": -0.08,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.296,
        "after": 0.2699,
        "delta": -0.0261,
        "percent_delta": -0.0882,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.34,
        "after": 1.0,
        "delta": 0.66,
        "percent_delta": 1.9412,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.37,
        "after": 0.0,
        "delta": -0.37,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.334,
        "after": 0.3459,
        "delta": 0.0119,
        "percent_delta": 0.0356,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.62,
        "after": 1.0,
        "delta": 0.38,
        "percent_delta": 0.6129,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 12,
      "boosted_metrics": 6,
      "deboosted_metrics": 6,
      "better_metrics": 5,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.01,
        "after": 5.0,
        "delta": 1.99,
        "percent_delta": 0.6611,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.37,
        "after": 0.0,
        "delta": -0.37,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.140-
predicted_3B0.040-
predicted_AB3.010-
predicted_AVG0.230-
predicted_BB0.200-
predicted_H0.690-
predicted_HR0.080-
predicted_OBP0.296-
predicted_R0.340-
predicted_RBI0.370-
predicted_SLG0.334-
predicted_SO0.620-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1530.013
predicted_3B0.033-0.007
predicted_AB2.967-0.043
predicted_AVG0.212-0.018
predicted_BB0.2540.054
predicted_H0.630-0.060
predicted_HBP0.083-
predicted_HR0.066-0.014
predicted_OBP0.293-0.003
predicted_R0.3760.036
predicted_RBI0.350-0.020
predicted_SLG0.324-0.010
predicted_SO0.619-0.001
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1530.000
predicted_3B0.0330.000
predicted_AB2.9670.000
predicted_AVG0.208-0.004
predicted_BB0.252-0.002
predicted_H0.617-0.013
predicted_HBP0.0830.000
predicted_HR0.064-0.003
predicted_OBP0.270-0.023
predicted_R0.363-0.013
predicted_RBI0.338-0.012
predicted_SLG0.3460.022
predicted_SO0.6240.005
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.01), rates preserved: AVG=0.205 HR/AB=0.021

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.153
predicted_3B0.000-0.033
predicted_AB3.0000.033
predicted_AVG0.3330.125
predicted_BB0.000-0.252
predicted_H1.0000.383
predicted_HR0.000-0.064
predicted_OBP0.3330.063
predicted_R0.000-0.363
predicted_RBI0.000-0.338
predicted_SLG0.333-0.013
predicted_SO1.0000.376
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B1.0001.000
AB5.0002.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R1.0001.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 50
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-13.0001.0001.0000.0000.0002.0003.0003.0002.0000.07690.29410.15380.07690.00000.15380.23080.1538
last_100.2010-23.0003.0002.0000.0000.0002.0004.0004.0006.0000.13040.28570.21740.13040.00000.08700.17390.2609
season0.6050-145.00032.0007.0002.0003.00014.00017.00010.00031.0000.22070.28030.35860.22070.02070.09650.06900.2138
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1730
predicted_3B0.0220
predicted_AB2.9040
predicted_AVG0.1862
predicted_BB0.3340
predicted_H0.5410
predicted_HBP0.0830
predicted_HR0.0460
predicted_OBP0.2888
predicted_R0.4290
predicted_RBI0.3200
predicted_SLG0.3087
predicted_SO0.6180
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.14000.17300.1533model_form_blend
predicted_3B0.04000.02200.0327model_form_blend
predicted_AB3.01002.90402.9673model_form_blend
predicted_AVG0.23000.18620.2123model_form_blend
predicted_BB0.20000.33400.2540model_form_blend
predicted_H0.69000.54100.6299model_form_blend
predicted_HBP-0.08300.0830form_only
predicted_HR0.08000.04600.0663model_form_blend
predicted_OBP0.29600.28880.2931model_form_blend
predicted_R0.34000.42900.3759model_form_blend
predicted_RBI0.37000.32000.3498model_form_blend
predicted_SLG0.33400.30870.3238model_form_blend
predicted_SO0.62000.61800.6192model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date132
Season rows before report date132
Report year2026
Profile rows used50
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB5
H1
2B0
3B1
HR0
R1
RBI0
BB0
SO1
SF0
HBP0
season_avg0.221

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS1
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP1
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder8
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedCF-LF
gameID20260617_SF@ATL_2
game_typefull
mlbID687551
playerID687551
playerNameDrew Gilbert
posCF
startedTrue
startingPositionCF
teamSF
teamID24
game_date2026-06-17
sl_k_percent19.4
sl_bb_percent8.5
sl_woba0.293
sl_xwoba0.278
sl_xba0.225
sl_xslg0.31
sl_sweet_spot_percent29.3
sl_barrel_batted_rate2.6
sl_hard_hit_percent32.8
sl_exit_velocity_avg85.2
sl_launch_angle_avg14.9
sl_whiff_percent24.8
sl_swing_percent42.0
Matt Chapman (656305) · BATTER · 3B · Team SF
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 246
All-history rows before 20260618: 246
System season_avg: 0.2470
Data season_avg (2026 season-to-date): 0.2308
Diff (system - data): 0.0162
System opponent_avg: 0.3200
System season_avg diverges from 2026 season-to-date by 0.0162. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2190.0000.000Hitting_2B0.2480.000-0.2480.000
predicted_3B0.0140.0000.000Hitting_3B0.0160.000-0.0160.000
predicted_AB3.7303.0004.000Hitting_AB3.8055.000-0.805-2.000
predicted_AVG0.2350.0000.250Hitting_AVG0.2310.000-0.2310.000
predicted_BB0.4251.0000.000Hitting_BB0.4720.0000.5281.000
predicted_CS-0.0000.000BaseRunning_CS0.0160.000-0.0160.000
predicted_H0.8800.0001.000Hitting_H0.8780.000-0.8780.000
predicted_HR0.1400.0000.000Hitting_HR0.0450.000-0.0450.000
predicted_OBP0.3180.2500.250Hitting_OBP0.3220.000-0.0720.250
predicted_R0.4660.0000.000Hitting_R0.4310.000-0.4310.000
predicted_RBI0.6500.0001.000Hitting_RBI0.4150.000-0.4150.000
predicted_SLG0.3990.0000.250Hitting_SLG0.3400.000-0.3400.000
predicted_SO0.8633.0001.000Hitting_SO0.9802.0002.0201.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics3
Deboosted Metrics6
Better Metrics2
Worse Metrics7
Biggest Boostpredicted_SO: 0.8630 -> 3.0000 (boost 2.1370, worse)
Biggest Deboostpredicted_H: 0.8800 -> 0.0000 (deboost -0.8800, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend21111predicted_SLG: 0.3990 -> 0.4083 (boost 0.0093, better)predicted_AB: 3.7300 -> 3.6596 (deboost -0.0704, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_OBP: 0.3193 -> 0.3132 (deboost -0.0061, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling84435predicted_AB: 3.6596 -> 4.0000 (boost 0.3404, better)predicted_BB: 0.4302 -> 0.0000 (deboost -0.4302, worse)AB rounded to 4 (raw=3.73), rates preserved: AVG=0.228 HR/AB=0.038
5bvp_blend00000--Sample-size BvP blend (BvP AB=25.0, weight=0.182, BvP AVG=0.320)
6consistency_constraints10101-predicted_R: 0.4495 -> 0.0000 (deboost -0.4495, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context31212predicted_AVG: 0.2325 -> 0.2500 (boost 0.0175, better)predicted_SLG: 0.4075 -> 0.2500 (deboost -0.1575, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference52314predicted_SO: 1.0000 -> 3.0000 (boost 2.0000, worse)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final32121predicted_SLG: 0.2500 -> 0.4075 (boost 0.1575, better)predicted_AVG: 0.2500 -> 0.2325 (deboost -0.0175, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "656305",
  "player_name": "Matt Chapman",
  "position": "3B",
  "team": "SF",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.219,
        "predicted_3B": 0.014,
        "predicted_AB": 3.73,
        "predicted_AVG": 0.235,
        "predicted_BB": 0.425,
        "predicted_H": 0.88,
        "predicted_HR": 0.14,
        "predicted_OBP": 0.318,
        "predicted_R": 0.466,
        "predicted_RBI": 0.65,
        "predicted_SLG": 0.399,
        "predicted_SO": 0.863
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1906,
        "predicted_3B": 0.0119,
        "predicted_AB": 3.6596,
        "predicted_AVG": 0.2369,
        "predicted_BB": 0.4335,
        "predicted_H": 0.869,
        "predicted_HBP": 0.052,
        "predicted_HR": 0.1481,
        "predicted_OBP": 0.3193,
        "predicted_R": 0.4652,
        "predicted_RBI": 0.6865,
        "predicted_SLG": 0.4083,
        "predicted_SO": 0.8443
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.219,
          "after": 0.1906,
          "delta": -0.0284,
          "percent_delta": -0.1297,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.014,
          "after": 0.0119,
          "delta": -0.0021,
          "percent_delta": -0.15,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.73,
          "after": 3.6596,
          "delta": -0.0704,
          "percent_delta": -0.0189,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.235,
          "after": 0.2369,
          "delta": 0.0019,
          "percent_delta": 0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.425,
          "after": 0.4335,
          "delta": 0.0085,
          "percent_delta": 0.02,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.88,
          "after": 0.869,
          "delta": -0.011,
          "percent_delta": -0.0125,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.14,
          "after": 0.1481,
          "delta": 0.0081,
          "percent_delta": 0.0579,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.318,
          "after": 0.3193,
          "delta": 0.0013,
          "percent_delta": 0.0041,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.466,
          "after": 0.4652,
          "delta": -0.0008,
          "percent_delta": -0.0017,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.65,
          "after": 0.6865,
          "delta": 0.0365,
          "percent_delta": 0.0562,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.399,
          "after": 0.4083,
          "delta": 0.0093,
          "percent_delta": 0.0233,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.863,
          "after": 0.8443,
          "delta": -0.0187,
          "percent_delta": -0.0217,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.399,
          "after": 0.4083,
          "delta": 0.0093,
          "percent_delta": 0.0233,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.73,
          "after": 3.6596,
          "delta": -0.0704,
          "percent_delta": -0.0189,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 73
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1906,
        "predicted_3B": 0.0119,
        "predicted_AB": 3.6596,
        "predicted_AVG": 0.2325,
        "predicted_BB": 0.4302,
        "predicted_H": 0.8509,
        "predicted_HBP": 0.052,
        "predicted_HR": 0.142,
        "predicted_OBP": 0.3132,
        "predicted_R": 0.4495,
        "predicted_RBI": 0.6633,
        "predicted_SLG": 0.4075,
        "predicted_SO": 0.8507
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1906,
          "after": 0.1906,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0119,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6596,
          "after": 3.6596,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2369,
          "after": 0.2325,
          "delta": -0.0044,
          "percent_delta": -0.0186,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.4335,
          "after": 0.4302,
          "delta": -0.0033,
          "percent_delta": -0.0076,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.869,
          "after": 0.8509,
          "delta": -0.0181,
          "percent_delta": -0.0208,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.052,
          "after": 0.052,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1481,
          "after": 0.142,
          "delta": -0.0061,
          "percent_delta": -0.0412,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3193,
          "after": 0.3132,
          "delta": -0.0061,
          "percent_delta": -0.0191,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4652,
          "after": 0.4495,
          "delta": -0.0157,
          "percent_delta": -0.0337,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6865,
          "after": 0.6633,
          "delta": -0.0232,
          "percent_delta": -0.0338,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4083,
          "after": 0.4075,
          "delta": -0.0008,
          "percent_delta": -0.002,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.8443,
          "after": 0.8507,
          "delta": 0.0064,
          "percent_delta": 0.0076,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3193,
          "after": 0.3132,
          "delta": -0.0061,
          "percent_delta": -0.0191,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.73), rates preserved: AVG=0.228 HR/AB=0.038",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1906,
          "after": 0.0,
          "delta": -0.1906,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0,
          "delta": -0.0119,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6596,
          "after": 4.0,
          "delta": 0.3404,
          "percent_delta": 0.093,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4302,
          "after": 0.0,
          "delta": -0.4302,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8509,
          "after": 1.0,
          "delta": 0.1491,
          "percent_delta": 0.1752,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.052,
          "after": 0.0,
          "delta": -0.052,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.142,
          "after": 0.0,
          "delta": -0.142,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6633,
          "after": 1.0,
          "delta": 0.3367,
          "percent_delta": 0.5076,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8507,
          "after": 1.0,
          "delta": 0.1493,
          "percent_delta": 0.1755,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 4,
        "deboosted_metrics": 4,
        "better_metrics": 3,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.6596,
          "after": 4.0,
          "delta": 0.3404,
          "percent_delta": 0.093,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.4302,
          "after": 0.0,
          "delta": -0.4302,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=25.0, weight=0.182, BvP AVG=0.320)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.8182,
        "bvp": 0.1818
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4495,
          "after": 0.0,
          "delta": -0.4495,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4495,
          "after": 0.0,
          "delta": -0.4495,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2325,
          "after": 0.25,
          "delta": 0.0175,
          "percent_delta": 0.0753,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3132,
          "after": 0.25,
          "delta": -0.0632,
          "percent_delta": -0.2018,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4075,
          "after": 0.25,
          "delta": -0.1575,
          "percent_delta": -0.3865,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2325,
          "after": 0.25,
          "delta": 0.0175,
          "percent_delta": 0.0753,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4075,
          "after": 0.25,
          "delta": -0.1575,
          "percent_delta": -0.3865,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 2,
        "deboosted_metrics": 3,
        "better_metrics": 1,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2325,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3132,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4075,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2325,
          "delta": -0.0175,
          "percent_delta": -0.0699,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3132,
          "delta": 0.0632,
          "percent_delta": 0.253,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4075,
          "delta": 0.1575,
          "percent_delta": 0.6302,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4075,
          "delta": 0.1575,
          "percent_delta": 0.6302,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2325,
          "delta": -0.0175,
          "percent_delta": -0.0699,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.219,
        "after": 0.0,
        "delta": -0.219,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.014,
        "after": 0.0,
        "delta": -0.014,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.73,
        "after": 3.0,
        "delta": -0.73,
        "percent_delta": -0.1957,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.235,
        "after": 0.2325,
        "delta": -0.0025,
        "percent_delta": -0.0106,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.425,
        "after": 1.0,
        "delta": 0.575,
        "percent_delta": 1.3529,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.88,
        "after": 0.0,
        "delta": -0.88,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.14,
        "after": 0.0,
        "delta": -0.14,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.318,
        "after": 0.3132,
        "delta": -0.0048,
        "percent_delta": -0.0151,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.466,
        "after": 0.0,
        "delta": -0.466,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.65,
        "after": 0.0,
        "delta": -0.65,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.399,
        "after": 0.4075,
        "delta": 0.0085,
        "percent_delta": 0.0213,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.863,
        "after": 3.0,
        "delta": 2.137,
        "percent_delta": 2.4762,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 3,
      "deboosted_metrics": 6,
      "better_metrics": 2,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.863,
        "after": 3.0,
        "delta": 2.137,
        "percent_delta": 2.4762,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.88,
        "after": 0.0,
        "delta": -0.88,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.219-
predicted_3B0.014-
predicted_AB3.730-
predicted_AVG0.235-
predicted_BB0.425-
predicted_H0.880-
predicted_HR0.140-
predicted_OBP0.318-
predicted_R0.466-
predicted_RBI0.650-
predicted_SLG0.399-
predicted_SO0.863-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.191-0.028
predicted_3B0.012-0.002
predicted_AB3.660-0.070
predicted_AVG0.2370.002
predicted_BB0.4330.009
predicted_H0.869-0.011
predicted_HBP0.052-
predicted_HR0.1480.008
predicted_OBP0.3190.001
predicted_R0.465-0.001
predicted_RBI0.6860.036
predicted_SLG0.4080.009
predicted_SO0.844-0.019
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1910.000
predicted_3B0.0120.000
predicted_AB3.6600.000
predicted_AVG0.233-0.004
predicted_BB0.430-0.003
predicted_H0.851-0.018
predicted_HBP0.0520.000
predicted_HR0.142-0.006
predicted_OBP0.313-0.006
predicted_R0.450-0.016
predicted_RBI0.663-0.023
predicted_SLG0.407-0.001
predicted_SO0.8510.006
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.73), rates preserved: AVG=0.228 HR/AB=0.038

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=25.0, weight=0.182, BvP AVG=0.320)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI1.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.191
predicted_3B0.000-0.012
predicted_AB4.0000.340
predicted_AVG0.2500.017
predicted_BB0.000-0.430
predicted_H1.0000.149
predicted_HR0.000-0.142
predicted_OBP0.250-0.063
predicted_R0.000-0.450
predicted_RBI1.0000.337
predicted_SLG0.250-0.157
predicted_SO1.0000.149
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO3.0002.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 73
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0002.0000.0000.0001.0005.0002.0002.0005.0000.11760.19050.29410.11770.05880.29410.11770.2941
last_100.2010-33.00011.0001.0000.0003.00010.0005.0006.0005.0000.33330.42860.63640.33330.09090.30300.18180.1515
season0.6073-267.00066.00016.0001.0007.00042.00034.00031.00063.0000.24720.33010.39330.24720.02620.15730.11610.2360
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1520
predicted_3B0.0090
predicted_AB3.5640
predicted_AVG0.2396
predicted_BB0.4450
predicted_H0.8540
predicted_HBP0.0520
predicted_HR0.1590
predicted_OBP0.3211
predicted_R0.4640
predicted_RBI0.7360
predicted_SLG0.4210
predicted_SO0.8190
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.21900.15200.1906model_form_blend
predicted_3B0.01400.00900.0119model_form_blend
predicted_AB3.73003.56403.6596model_form_blend
predicted_AVG0.23500.23960.2369model_form_blend
predicted_BB0.42500.44500.4335model_form_blend
predicted_H0.88000.85400.8690model_form_blend
predicted_HBP-0.05200.0520form_only
predicted_HR0.14000.15900.1481model_form_blend
predicted_OBP0.31800.32110.3193model_form_blend
predicted_R0.46600.46400.4652model_form_blend
predicted_RBI0.65000.73600.6865model_form_blend
predicted_SLG0.39900.42100.4083model_form_blend
predicted_SO0.86300.81900.8443model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date246
Season rows before report date246
Report year2026
Profile rows used73
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO3
SF0
HBP0
season_avg0.247

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB0
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260617_SF@ATL_2
game_typefull
mlbID656305
playerID656305
playerNameMatt Chapman
pos3B
startedTrue
startingPosition3B
teamSF
teamID24
game_date2026-06-17
sl_k_percent20.7
sl_bb_percent10.4
sl_woba0.327
sl_xwoba0.294
sl_xba0.219
sl_xslg0.335
sl_sweet_spot_percent24.4
sl_barrel_batted_rate6.8
sl_hard_hit_percent36.8
sl_exit_velocity_avg88.2
sl_launch_angle_avg10.2
sl_whiff_percent22.3
sl_swing_percent44.6
Daniel Susac (691740) · BATTER · SS · Team SF
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 68
All-history rows before 20260618: 68
System season_avg: 0.2830
Data season_avg (2026 season-to-date): 0.3216
Diff (system - data): -0.0386
System opponent_avg: 0.0000
System season_avg diverges from 2026 season-to-date by -0.0386. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1720.0000.000Hitting_2B0.2210.000-0.2210.000
predicted_3B0.0340.0000.000Hitting_3B0.0590.000-0.0590.000
predicted_AB3.1723.0003.000Hitting_AB3.3384.000-0.338-1.000
predicted_AVG0.2480.0000.333Hitting_AVG0.3220.000-0.3220.000
predicted_BB0.2071.0000.000Hitting_BB0.2790.0000.7211.000
predicted_CS-0.0000.000BaseRunning_CS0.0740.000-0.0740.000
predicted_H0.3000.0001.000Hitting_H1.0740.000-1.0740.000
predicted_HR0.0300.0000.000Hitting_HR0.0000.0000.0000.000
predicted_OBP0.2840.2500.333Hitting_OBP0.3780.000-0.1280.250
predicted_R0.1720.0000.000Hitting_R0.1620.000-0.1620.000
predicted_RBI0.1800.0000.000Hitting_RBI0.5880.000-0.5880.000
predicted_SLG0.3520.0000.333Hitting_SLG0.4230.000-0.4230.000
predicted_SO0.7931.0001.000Hitting_SO0.7941.0000.2060.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics2
Deboosted Metrics8
Better Metrics1
Worse Metrics9
Biggest Boostpredicted_BB: 0.2070 -> 1.0000 (boost 0.7930, better)
Biggest Deboostpredicted_H: 0.3000 -> 0.0000 (deboost -0.3000, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend44040predicted_H: 0.3000 -> 0.5172 (boost 0.2172, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.3498 -> 0.2525 (deboost -0.0973, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71607predicted_SO: 0.8068 -> 1.0000 (boost 0.1932, worse)predicted_H: 0.5064 -> 0.0000 (deboost -0.5064, worse)AB rounded to 3 (raw=3.24), rates preserved: AVG=0.156 HR/AB=0.008
5consistency_constraints21111predicted_H: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_R: 0.1888 -> 0.0000 (deboost -0.1888, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.1565 -> 0.3330 (boost 0.1765, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21111predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.1565 (deboost -0.1765, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "691740",
  "player_name": "Daniel Susac",
  "position": "SS",
  "team": "SF",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.172,
        "predicted_3B": 0.034,
        "predicted_AB": 3.172,
        "predicted_AVG": 0.248,
        "predicted_BB": 0.207,
        "predicted_H": 0.3,
        "predicted_HR": 0.03,
        "predicted_OBP": 0.284,
        "predicted_R": 0.172,
        "predicted_RBI": 0.18,
        "predicted_SLG": 0.352,
        "predicted_SO": 0.793
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1716,
        "predicted_3B": 0.0286,
        "predicted_AB": 3.2363,
        "predicted_AVG": 0.2525,
        "predicted_BB": 0.1947,
        "predicted_H": 0.5172,
        "predicted_HBP": 0.056,
        "predicted_HR": 0.0285,
        "predicted_OBP": 0.2922,
        "predicted_R": 0.1954,
        "predicted_RBI": 0.2712,
        "predicted_SLG": 0.3498,
        "predicted_SO": 0.8007
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.172,
          "after": 0.1716,
          "delta": -0.0004,
          "percent_delta": -0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.034,
          "after": 0.0286,
          "delta": -0.0054,
          "percent_delta": -0.1588,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.172,
          "after": 3.2363,
          "delta": 0.0643,
          "percent_delta": 0.0203,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.248,
          "after": 0.2525,
          "delta": 0.0045,
          "percent_delta": 0.0181,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.207,
          "after": 0.1947,
          "delta": -0.0123,
          "percent_delta": -0.0594,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.3,
          "after": 0.5172,
          "delta": 0.2172,
          "percent_delta": 0.724,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.03,
          "after": 0.0285,
          "delta": -0.0015,
          "percent_delta": -0.05,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.284,
          "after": 0.2922,
          "delta": 0.0082,
          "percent_delta": 0.0289,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.172,
          "after": 0.1954,
          "delta": 0.0234,
          "percent_delta": 0.136,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.18,
          "after": 0.2712,
          "delta": 0.0912,
          "percent_delta": 0.5067,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.352,
          "after": 0.3498,
          "delta": -0.0022,
          "percent_delta": -0.0062,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.793,
          "after": 0.8007,
          "delta": 0.0077,
          "percent_delta": 0.0097,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 4,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.3,
          "after": 0.5172,
          "delta": 0.2172,
          "percent_delta": 0.724,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 29
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1716,
        "predicted_3B": 0.0286,
        "predicted_AB": 3.2363,
        "predicted_AVG": 0.1565,
        "predicted_BB": 0.1932,
        "predicted_H": 0.5064,
        "predicted_HBP": 0.056,
        "predicted_HR": 0.0273,
        "predicted_OBP": 0.204,
        "predicted_R": 0.1888,
        "predicted_RBI": 0.262,
        "predicted_SLG": 0.2525,
        "predicted_SO": 0.8068
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1716,
          "after": 0.1716,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0286,
          "after": 0.0286,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.2363,
          "after": 3.2363,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2525,
          "after": 0.1565,
          "delta": -0.096,
          "percent_delta": -0.3802,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1947,
          "after": 0.1932,
          "delta": -0.0015,
          "percent_delta": -0.0077,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.5172,
          "after": 0.5064,
          "delta": -0.0108,
          "percent_delta": -0.0209,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.056,
          "after": 0.056,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0285,
          "after": 0.0273,
          "delta": -0.0012,
          "percent_delta": -0.0421,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2922,
          "after": 0.204,
          "delta": -0.0882,
          "percent_delta": -0.3018,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.1954,
          "after": 0.1888,
          "delta": -0.0066,
          "percent_delta": -0.0338,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2712,
          "after": 0.262,
          "delta": -0.0092,
          "percent_delta": -0.0339,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3498,
          "after": 0.2525,
          "delta": -0.0973,
          "percent_delta": -0.2782,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8007,
          "after": 0.8068,
          "delta": 0.0061,
          "percent_delta": 0.0076,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3498,
          "after": 0.2525,
          "delta": -0.0973,
          "percent_delta": -0.2782,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.24), rates preserved: AVG=0.156 HR/AB=0.008",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1716,
          "after": 0.0,
          "delta": -0.1716,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0286,
          "after": 0.0,
          "delta": -0.0286,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.2363,
          "after": 3.0,
          "delta": -0.2363,
          "percent_delta": -0.073,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1932,
          "after": 0.0,
          "delta": -0.1932,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.5064,
          "after": 0.0,
          "delta": -0.5064,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.056,
          "after": 0.0,
          "delta": -0.056,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0273,
          "after": 0.0,
          "delta": -0.0273,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.262,
          "after": 0.0,
          "delta": -0.262,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8068,
          "after": 1.0,
          "delta": 0.1932,
          "percent_delta": 0.2395,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 0,
        "worse_metrics": 7,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.8068,
          "after": 1.0,
          "delta": 0.1932,
          "percent_delta": 0.2395,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 0.5064,
          "after": 0.0,
          "delta": -0.5064,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.1888,
          "after": 0.0,
          "delta": -0.1888,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.1888,
          "after": 0.0,
          "delta": -0.1888,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1565,
          "after": 0.333,
          "delta": 0.1765,
          "percent_delta": 1.1278,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.204,
          "after": 0.333,
          "delta": 0.129,
          "percent_delta": 0.6324,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2525,
          "after": 0.333,
          "delta": 0.0805,
          "percent_delta": 0.3188,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1565,
          "after": 0.333,
          "delta": 0.1765,
          "percent_delta": 1.1278,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.1565,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.204,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.2525,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1565,
          "delta": -0.1765,
          "percent_delta": -0.5301,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.204,
          "delta": -0.129,
          "percent_delta": -0.3874,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.2525,
          "delta": -0.0805,
          "percent_delta": -0.2417,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1565,
          "delta": -0.1765,
          "percent_delta": -0.5301,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.172,
        "after": 0.0,
        "delta": -0.172,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.034,
        "after": 0.0,
        "delta": -0.034,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.172,
        "after": 3.0,
        "delta": -0.172,
        "percent_delta": -0.0542,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.248,
        "after": 0.1565,
        "delta": -0.0915,
        "percent_delta": -0.369,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.207,
        "after": 1.0,
        "delta": 0.793,
        "percent_delta": 3.8309,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.3,
        "after": 0.0,
        "delta": -0.3,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.03,
        "after": 0.0,
        "delta": -0.03,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_OBP",
        "before": 0.284,
        "after": 0.204,
        "delta": -0.08,
        "percent_delta": -0.2817,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.172,
        "after": 0.0,
        "delta": -0.172,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.18,
        "after": 0.0,
        "delta": -0.18,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.352,
        "after": 0.2525,
        "delta": -0.0995,
        "percent_delta": -0.2827,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.793,
        "after": 1.0,
        "delta": 0.207,
        "percent_delta": 0.261,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 2,
      "deboosted_metrics": 8,
      "better_metrics": 1,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.207,
        "after": 1.0,
        "delta": 0.793,
        "percent_delta": 3.8309,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.3,
        "after": 0.0,
        "delta": -0.3,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.172-
predicted_3B0.034-
predicted_AB3.172-
predicted_AVG0.248-
predicted_BB0.207-
predicted_H0.300-
predicted_HR0.030-
predicted_OBP0.284-
predicted_R0.172-
predicted_RBI0.180-
predicted_SLG0.352-
predicted_SO0.793-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.172-0.000
predicted_3B0.029-0.005
predicted_AB3.2360.064
predicted_AVG0.2530.005
predicted_BB0.195-0.012
predicted_H0.5170.217
predicted_HBP0.056-
predicted_HR0.029-0.001
predicted_OBP0.2920.008
predicted_R0.1950.023
predicted_RBI0.2710.091
predicted_SLG0.350-0.002
predicted_SO0.8010.008
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1720.000
predicted_3B0.0290.000
predicted_AB3.2360.000
predicted_AVG0.157-0.096
predicted_BB0.193-0.002
predicted_H0.506-0.011
predicted_HBP0.0560.000
predicted_HR0.027-0.001
predicted_OBP0.204-0.088
predicted_R0.189-0.007
predicted_RBI0.262-0.009
predicted_SLG0.253-0.097
predicted_SO0.8070.006
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.24), rates preserved: AVG=0.156 HR/AB=0.008

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H0.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0001.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.172
predicted_3B0.000-0.029
predicted_AB3.000-0.236
predicted_AVG0.3330.177
predicted_BB0.000-0.193
predicted_H1.0000.494
predicted_HR0.000-0.027
predicted_OBP0.3330.129
predicted_R0.000-0.189
predicted_RBI0.000-0.262
predicted_SLG0.3330.081
predicted_SO1.0000.193
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 29
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-15.0003.0001.0000.0000.0002.0001.0000.0004.0000.20000.20000.26670.20000.00000.13330.00000.2667
last_100.2010-34.0009.0001.0000.0000.0002.0001.0001.0008.0000.26470.30560.29410.26470.00000.05880.02940.2353
season0.6029-92.00026.0005.0001.0000.00013.0005.0006.00023.0000.28260.33660.35870.28260.00000.14130.06520.2500
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1710
predicted_3B0.0200
predicted_AB3.3400
predicted_AVG0.2598
predicted_BB0.1750
predicted_H0.8670
predicted_HBP0.0560
predicted_HR0.0260
predicted_OBP0.3054
predicted_R0.2330
predicted_RBI0.4180
predicted_SLG0.3462
predicted_SO0.8130
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.17200.17100.1716model_form_blend
predicted_3B0.03400.02000.0286model_form_blend
predicted_AB3.17203.34003.2363model_form_blend
predicted_AVG0.24800.25980.2525model_form_blend
predicted_BB0.20700.17500.1947model_form_blend
predicted_H0.30000.86700.5172model_form_blend
predicted_HBP-0.05600.0560form_only
predicted_HR0.03000.02600.0285model_form_blend
predicted_OBP0.28400.30540.2922model_form_blend
predicted_R0.17200.23300.1954model_form_blend
predicted_RBI0.18000.41800.2712model_form_blend
predicted_SLG0.35200.34620.3498model_form_blend
predicted_SO0.79300.81300.8007model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date68
Season rows before report date68
Report year2026
Profile rows used29
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO1
SF0
HBP0
season_avg0.283

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB0
Hitting_battingOrder9
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedC
gameID20260617_SF@ATL
game_typefull
mlbID691740
playerID691740
playerNameDaniel Susac
posC
startedTrue
startingPositionC
teamSF
teamID24
game_date2026-06-17
sl_k_percent21.6
sl_bb_percent5.9
sl_woba0.315
sl_xwoba0.306
sl_xba0.269
sl_xslg0.361
sl_sweet_spot_percent41.7
sl_barrel_batted_rate4.2
sl_hard_hit_percent29.2
sl_exit_velocity_avg86.2
sl_launch_angle_avg16.1
sl_whiff_percent24.9
sl_swing_percent54.8
Jung Hoo Lee (808982) · BATTER · LF · Team SF
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 212
All-history rows before 20260618: 212
System season_avg: 0.3310
Data season_avg (2026 season-to-date): 0.3008
Diff (system - data): 0.0302
System opponent_avg: 0.3320
System season_avg diverges from 2026 season-to-date by 0.0302. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2312.0000.000Hitting_2B0.2360.0001.7642.000
predicted_3B0.0310.0000.000Hitting_3B0.0280.000-0.0280.000
predicted_AB3.8154.0004.000Hitting_AB3.9204.0000.0800.000
predicted_AVG0.2630.7500.250Hitting_AVG0.3010.0000.4490.750
predicted_BB0.1690.0000.000Hitting_BB0.2170.000-0.2170.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.9803.0001.000Hitting_H1.1790.0001.8213.000
predicted_HR0.1000.0000.000Hitting_HR0.0610.000-0.0610.000
predicted_OBP0.3180.7500.250Hitting_OBP0.3430.0000.4070.750
predicted_R0.5541.0001.000Hitting_R0.5090.0000.4911.000
predicted_RBI0.4300.0000.000Hitting_RBI0.3920.000-0.3920.000
predicted_SLG0.4141.2500.250Hitting_SLG0.4220.0000.8281.250
predicted_SO0.3541.0000.000Hitting_SO0.4100.0000.5901.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics5
Deboosted Metrics4
Better Metrics4
Worse Metrics5
Biggest Boostpredicted_H: 0.9800 -> 3.0000 (boost 2.0200, better)
Biggest Deboostpredicted_RBI: 0.4300 -> 0.0000 (deboost -0.4300, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend33030predicted_H: 0.9800 -> 1.0435 (boost 0.0635, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3194 -> 0.2964 (deboost -0.0230, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling61524predicted_AB: 3.8150 -> 4.0000 (boost 0.1850, better)predicted_RBI: 0.4147 -> 0.0000 (deboost -0.4147, worse)AB rounded to 4 (raw=3.81), rates preserved: AVG=0.268 HR/AB=0.025
5consistency_constraints11010predicted_R: 0.5316 -> 1.0000 (boost 0.4684, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.4100 -> 0.2500 (deboost -0.1600, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference33021predicted_2B: 0.0000 -> 2.0000 (boost 2.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2500 -> 0.4100 (boost 0.1600, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "808982",
  "player_name": "Jung Hoo Lee",
  "position": "LF",
  "team": "SF",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.231,
        "predicted_3B": 0.031,
        "predicted_AB": 3.815,
        "predicted_AVG": 0.263,
        "predicted_BB": 0.169,
        "predicted_H": 0.98,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.318,
        "predicted_R": 0.554,
        "predicted_RBI": 0.43,
        "predicted_SLG": 0.414,
        "predicted_SO": 0.354
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2012,
        "predicted_3B": 0.0255,
        "predicted_AB": 3.815,
        "predicted_AVG": 0.2771,
        "predicted_BB": 0.156,
        "predicted_H": 1.0435,
        "predicted_HBP": 0.028,
        "predicted_HR": 0.1008,
        "predicted_OBP": 0.3194,
        "predicted_R": 0.5502,
        "predicted_RBI": 0.4292,
        "predicted_SLG": 0.4199,
        "predicted_SO": 0.3284
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.231,
          "after": 0.2012,
          "delta": -0.0298,
          "percent_delta": -0.129,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.031,
          "after": 0.0255,
          "delta": -0.0055,
          "percent_delta": -0.1774,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.815,
          "after": 3.815,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.263,
          "after": 0.2771,
          "delta": 0.0141,
          "percent_delta": 0.0536,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.169,
          "after": 0.156,
          "delta": -0.013,
          "percent_delta": -0.0769,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.98,
          "after": 1.0435,
          "delta": 0.0635,
          "percent_delta": 0.0648,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.1008,
          "delta": 0.0008,
          "percent_delta": 0.008,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.318,
          "after": 0.3194,
          "delta": 0.0014,
          "percent_delta": 0.0044,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.554,
          "after": 0.5502,
          "delta": -0.0038,
          "percent_delta": -0.0069,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.43,
          "after": 0.4292,
          "delta": -0.0008,
          "percent_delta": -0.0019,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.414,
          "after": 0.4199,
          "delta": 0.0059,
          "percent_delta": 0.0143,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.354,
          "after": 0.3284,
          "delta": -0.0256,
          "percent_delta": -0.0723,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.98,
          "after": 1.0435,
          "delta": 0.0635,
          "percent_delta": 0.0648,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 65
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2012,
        "predicted_3B": 0.0255,
        "predicted_AB": 3.815,
        "predicted_AVG": 0.2678,
        "predicted_BB": 0.1548,
        "predicted_H": 1.0218,
        "predicted_HBP": 0.028,
        "predicted_HR": 0.0967,
        "predicted_OBP": 0.2964,
        "predicted_R": 0.5316,
        "predicted_RBI": 0.4147,
        "predicted_SLG": 0.41,
        "predicted_SO": 0.3309
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2012,
          "after": 0.2012,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0255,
          "after": 0.0255,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.815,
          "after": 3.815,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2771,
          "after": 0.2678,
          "delta": -0.0093,
          "percent_delta": -0.0336,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.156,
          "after": 0.1548,
          "delta": -0.0012,
          "percent_delta": -0.0077,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0435,
          "after": 1.0218,
          "delta": -0.0217,
          "percent_delta": -0.0208,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.028,
          "after": 0.028,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1008,
          "after": 0.0967,
          "delta": -0.0041,
          "percent_delta": -0.0407,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3194,
          "after": 0.2964,
          "delta": -0.023,
          "percent_delta": -0.072,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5502,
          "after": 0.5316,
          "delta": -0.0186,
          "percent_delta": -0.0338,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4292,
          "after": 0.4147,
          "delta": -0.0145,
          "percent_delta": -0.0338,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4199,
          "after": 0.41,
          "delta": -0.0099,
          "percent_delta": -0.0236,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.3284,
          "after": 0.3309,
          "delta": 0.0025,
          "percent_delta": 0.0076,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3194,
          "after": 0.2964,
          "delta": -0.023,
          "percent_delta": -0.072,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.81), rates preserved: AVG=0.268 HR/AB=0.025",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2012,
          "after": 0.0,
          "delta": -0.2012,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0255,
          "after": 0.0,
          "delta": -0.0255,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.815,
          "after": 4.0,
          "delta": 0.185,
          "percent_delta": 0.0485,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1548,
          "after": 0.0,
          "delta": -0.1548,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0218,
          "after": 1.0,
          "delta": -0.0218,
          "percent_delta": -0.0213,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.028,
          "after": 0.0,
          "delta": -0.028,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0967,
          "after": 0.0,
          "delta": -0.0967,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4147,
          "after": 0.0,
          "delta": -0.4147,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.3309,
          "after": 0.0,
          "delta": -0.3309,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 1,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.815,
          "after": 4.0,
          "delta": 0.185,
          "percent_delta": 0.0485,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4147,
          "after": 0.0,
          "delta": -0.4147,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5316,
          "after": 1.0,
          "delta": 0.4684,
          "percent_delta": 0.8811,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5316,
          "after": 1.0,
          "delta": 0.4684,
          "percent_delta": 0.8811,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2678,
          "after": 0.25,
          "delta": -0.0178,
          "percent_delta": -0.0665,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2964,
          "after": 0.25,
          "delta": -0.0464,
          "percent_delta": -0.1565,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.41,
          "after": 0.25,
          "delta": -0.16,
          "percent_delta": -0.3902,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.41,
          "after": 0.25,
          "delta": -0.16,
          "percent_delta": -0.3902,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 2.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 3.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 2.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2678,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 3.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2964,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.41,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2678,
          "delta": 0.0178,
          "percent_delta": 0.0713,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2964,
          "delta": 0.0464,
          "percent_delta": 0.1856,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.41,
          "delta": 0.16,
          "percent_delta": 0.6399,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.41,
          "delta": 0.16,
          "percent_delta": 0.6399,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.231,
        "after": 2.0,
        "delta": 1.769,
        "percent_delta": 7.658,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.031,
        "after": 0.0,
        "delta": -0.031,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.815,
        "after": 4.0,
        "delta": 0.185,
        "percent_delta": 0.0485,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.263,
        "after": 0.2678,
        "delta": 0.0048,
        "percent_delta": 0.0183,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.169,
        "after": 0.0,
        "delta": -0.169,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.98,
        "after": 3.0,
        "delta": 2.02,
        "percent_delta": 2.0612,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.318,
        "after": 0.2964,
        "delta": -0.0216,
        "percent_delta": -0.0679,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.554,
        "after": 1.0,
        "delta": 0.446,
        "percent_delta": 0.8051,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.43,
        "after": 0.0,
        "delta": -0.43,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.414,
        "after": 0.41,
        "delta": -0.004,
        "percent_delta": -0.0097,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.354,
        "after": 1.0,
        "delta": 0.646,
        "percent_delta": 1.8249,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 5,
      "deboosted_metrics": 4,
      "better_metrics": 4,
      "worse_metrics": 5,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 0.98,
        "after": 3.0,
        "delta": 2.02,
        "percent_delta": 2.0612,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.43,
        "after": 0.0,
        "delta": -0.43,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.231-
predicted_3B0.031-
predicted_AB3.815-
predicted_AVG0.263-
predicted_BB0.169-
predicted_H0.980-
predicted_HR0.100-
predicted_OBP0.318-
predicted_R0.554-
predicted_RBI0.430-
predicted_SLG0.414-
predicted_SO0.354-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.201-0.030
predicted_3B0.025-0.006
predicted_AB3.8150.000
predicted_AVG0.2770.014
predicted_BB0.156-0.013
predicted_H1.0440.064
predicted_HBP0.028-
predicted_HR0.1010.001
predicted_OBP0.3190.001
predicted_R0.550-0.004
predicted_RBI0.429-0.001
predicted_SLG0.4200.006
predicted_SO0.328-0.026
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2010.000
predicted_3B0.0250.000
predicted_AB3.8150.000
predicted_AVG0.268-0.009
predicted_BB0.155-0.001
predicted_H1.022-0.022
predicted_HBP0.0280.000
predicted_HR0.097-0.004
predicted_OBP0.296-0.023
predicted_R0.532-0.019
predicted_RBI0.415-0.015
predicted_SLG0.410-0.010
predicted_SO0.3310.003
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.81), rates preserved: AVG=0.268 HR/AB=0.025

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO0.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO0.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.201
predicted_3B0.000-0.025
predicted_AB4.0000.185
predicted_AVG0.250-0.018
predicted_BB0.000-0.155
predicted_H1.000-0.022
predicted_HR0.000-0.097
predicted_OBP0.250-0.046
predicted_R1.0000.468
predicted_RBI0.000-0.415
predicted_SLG0.250-0.160
predicted_SO0.000-0.331
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B2.0002.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H3.0002.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 65
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0003.0000.0000.0001.0002.0002.0000.0000.0000.16670.16670.33330.16670.05560.11110.00000.0000
last_100.2010-40.00014.0001.0000.0001.0005.0007.0001.0001.0000.35000.35710.45000.35000.02500.12500.02500.0250
season0.6065-248.00082.00015.0002.0004.00026.00036.00011.00023.0000.33060.36230.45560.33060.01610.10480.04440.0927
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1600
predicted_3B0.0180
predicted_AB3.8150
predicted_AVG0.2965
predicted_BB0.1380
predicted_H1.1310
predicted_HBP0.0280
predicted_HR0.1020
predicted_OBP0.3213
predicted_R0.5450
predicted_RBI0.4280
predicted_SLG0.4280
predicted_SO0.2930
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.23100.16000.2012model_form_blend
predicted_3B0.03100.01800.0255model_form_blend
predicted_AB3.81503.81503.8150model_form_blend
predicted_AVG0.26300.29650.2771model_form_blend
predicted_BB0.16900.13800.1560model_form_blend
predicted_H0.98001.13101.0435model_form_blend
predicted_HBP-0.02800.0280form_only
predicted_HR0.10000.10200.1008model_form_blend
predicted_OBP0.31800.32130.3194model_form_blend
predicted_R0.55400.54500.5502model_form_blend
predicted_RBI0.43000.42800.4292model_form_blend
predicted_SLG0.41400.42800.4199model_form_blend
predicted_SO0.35400.29300.3284model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date212
Season rows before report date212
Report year2026
Profile rows used65
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H3
2B2
3B0
HR0
R1
RBI0
BB0
SO1
SF0
HBP0
season_avg0.331

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedRF
gameID20260617_SF@ATL_2
game_typefull
mlbID808982
playerID808982
playerNameJung Hoo Lee
posRF
startedTrue
startingPositionRF
teamSF
teamID24
game_date2026-06-17
sl_k_percent9.3
sl_bb_percent4.1
sl_woba0.352
sl_xwoba0.335
sl_xba0.316
sl_xslg0.409
sl_sweet_spot_percent39.1
sl_barrel_batted_rate2.6
sl_hard_hit_percent30.4
sl_exit_velocity_avg87.7
sl_launch_angle_avg10.9
sl_whiff_percent12.2
sl_swing_percent47.1
Casey Schmitt (669477) · BATTER · CF · Team SF
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 213
All-history rows before 20260618: 213
System season_avg: 0.2820
Data season_avg (2026 season-to-date): 0.3042
Diff (system - data): -0.0222
System opponent_avg: 0.6000
System season_avg diverges from 2026 season-to-date by -0.0222. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1971.0000.000Hitting_2B0.2300.0000.7701.000
predicted_3B0.0150.0000.000Hitting_3B0.0470.000-0.0470.000
predicted_AB3.9704.0004.000Hitting_AB3.9814.0000.0190.000
predicted_AVG0.2650.5000.250Hitting_AVG0.3040.5000.1960.000
predicted_BB0.1060.0000.000Hitting_BB0.1410.000-0.1410.000
predicted_CS-0.0000.000BaseRunning_CS0.0190.000-0.0190.000
predicted_H0.9802.0001.000Hitting_H1.2112.0000.7890.000
predicted_HR0.1301.0000.000Hitting_HR0.2540.0000.7461.000
predicted_OBP0.3370.5000.250Hitting_OBP0.3450.5000.1550.000
predicted_R0.5151.0000.000Hitting_R0.6380.0000.3621.000
predicted_RBI0.3703.0000.000Hitting_RBI0.6530.0002.3473.000
predicted_SLG0.4481.5000.250Hitting_SLG0.5770.5000.9231.000
predicted_SO0.8481.0001.000Hitting_SO0.8261.0000.1740.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics10
Boosted Metrics7
Deboosted Metrics3
Better Metrics6
Worse Metrics4
Biggest Boostpredicted_RBI: 0.3700 -> 3.0000 (boost 2.6300, better)
Biggest Deboostpredicted_BB: 0.1060 -> 0.0000 (deboost -0.1060, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend43131predicted_H: 0.9800 -> 1.0786 (boost 0.0986, better)predicted_AB: 3.9700 -> 3.9093 (deboost -0.0607, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3418 -> 0.2877 (deboost -0.0541, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling82617predicted_SO: 0.8566 -> 1.0000 (boost 0.1434, worse)predicted_RBI: 0.3461 -> 0.0000 (deboost -0.3461, worse)AB rounded to 4 (raw=3.97), rates preserved: AVG=0.266 HR/AB=0.032
5consistency_constraints10101-predicted_R: 0.4911 -> 0.0000 (deboost -0.4911, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.4212 -> 0.2500 (deboost -0.1712, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference55050predicted_RBI: 0.0000 -> 3.0000 (boost 3.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2500 -> 0.4212 (boost 0.1712, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "669477",
  "player_name": "Casey Schmitt",
  "position": "CF",
  "team": "SF",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.197,
        "predicted_3B": 0.015,
        "predicted_AB": 3.97,
        "predicted_AVG": 0.265,
        "predicted_BB": 0.106,
        "predicted_H": 0.98,
        "predicted_HR": 0.13,
        "predicted_OBP": 0.337,
        "predicted_R": 0.515,
        "predicted_RBI": 0.37,
        "predicted_SLG": 0.448,
        "predicted_SO": 0.848
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1903,
        "predicted_3B": 0.0125,
        "predicted_AB": 3.9093,
        "predicted_AVG": 0.287,
        "predicted_BB": 0.0967,
        "predicted_H": 1.0786,
        "predicted_HBP": 0.111,
        "predicted_HR": 0.1304,
        "predicted_OBP": 0.3418,
        "predicted_R": 0.5083,
        "predicted_RBI": 0.3582,
        "predicted_SLG": 0.4584,
        "predicted_SO": 0.8501
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.197,
          "after": 0.1903,
          "delta": -0.0067,
          "percent_delta": -0.034,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.015,
          "after": 0.0125,
          "delta": -0.0025,
          "percent_delta": -0.1667,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.97,
          "after": 3.9093,
          "delta": -0.0607,
          "percent_delta": -0.0153,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.265,
          "after": 0.287,
          "delta": 0.022,
          "percent_delta": 0.083,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.106,
          "after": 0.0967,
          "delta": -0.0093,
          "percent_delta": -0.0877,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.98,
          "after": 1.0786,
          "delta": 0.0986,
          "percent_delta": 0.1006,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.13,
          "after": 0.1304,
          "delta": 0.0004,
          "percent_delta": 0.0031,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.337,
          "after": 0.3418,
          "delta": 0.0048,
          "percent_delta": 0.0142,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.515,
          "after": 0.5083,
          "delta": -0.0067,
          "percent_delta": -0.013,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.37,
          "after": 0.3582,
          "delta": -0.0118,
          "percent_delta": -0.0319,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.448,
          "after": 0.4584,
          "delta": 0.0104,
          "percent_delta": 0.0232,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.848,
          "after": 0.8501,
          "delta": 0.0021,
          "percent_delta": 0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.98,
          "after": 1.0786,
          "delta": 0.0986,
          "percent_delta": 0.1006,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.97,
          "after": 3.9093,
          "delta": -0.0607,
          "percent_delta": -0.0153,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 66
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1903,
        "predicted_3B": 0.0125,
        "predicted_AB": 3.9093,
        "predicted_AVG": 0.2702,
        "predicted_BB": 0.096,
        "predicted_H": 1.0562,
        "predicted_HBP": 0.111,
        "predicted_HR": 0.1251,
        "predicted_OBP": 0.2877,
        "predicted_R": 0.4911,
        "predicted_RBI": 0.3461,
        "predicted_SLG": 0.4212,
        "predicted_SO": 0.8566
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1903,
          "after": 0.1903,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0125,
          "after": 0.0125,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9093,
          "after": 3.9093,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.287,
          "after": 0.2702,
          "delta": -0.0168,
          "percent_delta": -0.0585,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0967,
          "after": 0.096,
          "delta": -0.0007,
          "percent_delta": -0.0072,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0786,
          "after": 1.0562,
          "delta": -0.0224,
          "percent_delta": -0.0208,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.111,
          "after": 0.111,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1304,
          "after": 0.1251,
          "delta": -0.0053,
          "percent_delta": -0.0406,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3418,
          "after": 0.2877,
          "delta": -0.0541,
          "percent_delta": -0.1583,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5083,
          "after": 0.4911,
          "delta": -0.0172,
          "percent_delta": -0.0338,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3582,
          "after": 0.3461,
          "delta": -0.0121,
          "percent_delta": -0.0338,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4584,
          "after": 0.4212,
          "delta": -0.0372,
          "percent_delta": -0.0812,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8501,
          "after": 0.8566,
          "delta": 0.0065,
          "percent_delta": 0.0076,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3418,
          "after": 0.2877,
          "delta": -0.0541,
          "percent_delta": -0.1583,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.97), rates preserved: AVG=0.266 HR/AB=0.032",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1903,
          "after": 0.0,
          "delta": -0.1903,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0125,
          "after": 0.0,
          "delta": -0.0125,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9093,
          "after": 4.0,
          "delta": 0.0907,
          "percent_delta": 0.0232,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.096,
          "after": 0.0,
          "delta": -0.096,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0562,
          "after": 1.0,
          "delta": -0.0562,
          "percent_delta": -0.0532,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.111,
          "after": 0.0,
          "delta": -0.111,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1251,
          "after": 0.0,
          "delta": -0.1251,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3461,
          "after": 0.0,
          "delta": -0.3461,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8566,
          "after": 1.0,
          "delta": 0.1434,
          "percent_delta": 0.1674,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 2,
        "deboosted_metrics": 6,
        "better_metrics": 1,
        "worse_metrics": 7,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.8566,
          "after": 1.0,
          "delta": 0.1434,
          "percent_delta": 0.1674,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3461,
          "after": 0.0,
          "delta": -0.3461,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4911,
          "after": 0.0,
          "delta": -0.4911,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4911,
          "after": 0.0,
          "delta": -0.4911,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2702,
          "after": 0.25,
          "delta": -0.0202,
          "percent_delta": -0.0748,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2877,
          "after": 0.25,
          "delta": -0.0377,
          "percent_delta": -0.131,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4212,
          "after": 0.25,
          "delta": -0.1712,
          "percent_delta": -0.4065,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4212,
          "after": 0.25,
          "delta": -0.1712,
          "percent_delta": -0.4065,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_R": 1.0,
        "predicted_RBI": 3.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 3.0,
          "delta": 3.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 5,
        "deboosted_metrics": 0,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 3.0,
          "delta": 3.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2702,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_OBP": 0.2877,
        "predicted_R": 1.0,
        "predicted_RBI": 3.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4212,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2702,
          "delta": 0.0202,
          "percent_delta": 0.0807,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2877,
          "delta": 0.0377,
          "percent_delta": 0.1506,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4212,
          "delta": 0.1712,
          "percent_delta": 0.6849,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4212,
          "delta": 0.1712,
          "percent_delta": 0.6849,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.197,
        "after": 1.0,
        "delta": 0.803,
        "percent_delta": 4.0761,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.015,
        "after": 0.0,
        "delta": -0.015,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.97,
        "after": 4.0,
        "delta": 0.03,
        "percent_delta": 0.0076,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AVG",
        "before": 0.265,
        "after": 0.2702,
        "delta": 0.0052,
        "percent_delta": 0.0196,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.106,
        "after": 0.0,
        "delta": -0.106,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.98,
        "after": 2.0,
        "delta": 1.02,
        "percent_delta": 1.0408,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.13,
        "after": 1.0,
        "delta": 0.87,
        "percent_delta": 6.6923,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.337,
        "after": 0.2877,
        "delta": -0.0493,
        "percent_delta": -0.1463,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.515,
        "after": 1.0,
        "delta": 0.485,
        "percent_delta": 0.9417,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.37,
        "after": 3.0,
        "delta": 2.63,
        "percent_delta": 7.1081,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.448,
        "after": 0.4212,
        "delta": -0.0268,
        "percent_delta": -0.0598,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.848,
        "after": 1.0,
        "delta": 0.152,
        "percent_delta": 0.1792,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 7,
      "deboosted_metrics": 3,
      "better_metrics": 6,
      "worse_metrics": 4,
      "biggest_boost": {
        "metric": "predicted_RBI",
        "before": 0.37,
        "after": 3.0,
        "delta": 2.63,
        "percent_delta": 7.1081,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_BB",
        "before": 0.106,
        "after": 0.0,
        "delta": -0.106,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.197-
predicted_3B0.015-
predicted_AB3.970-
predicted_AVG0.265-
predicted_BB0.106-
predicted_H0.980-
predicted_HR0.130-
predicted_OBP0.337-
predicted_R0.515-
predicted_RBI0.370-
predicted_SLG0.448-
predicted_SO0.848-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.190-0.007
predicted_3B0.013-0.002
predicted_AB3.909-0.061
predicted_AVG0.2870.022
predicted_BB0.097-0.009
predicted_H1.0790.099
predicted_HBP0.111-
predicted_HR0.1300.000
predicted_OBP0.3420.005
predicted_R0.508-0.007
predicted_RBI0.358-0.012
predicted_SLG0.4580.010
predicted_SO0.8500.002
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1900.000
predicted_3B0.0130.000
predicted_AB3.9090.000
predicted_AVG0.270-0.017
predicted_BB0.096-0.001
predicted_H1.056-0.022
predicted_HBP0.1110.000
predicted_HR0.125-0.005
predicted_OBP0.288-0.054
predicted_R0.491-0.017
predicted_RBI0.346-0.012
predicted_SLG0.421-0.037
predicted_SO0.8570.007
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.97), rates preserved: AVG=0.266 HR/AB=0.032

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.190
predicted_3B0.000-0.013
predicted_AB4.0000.091
predicted_AVG0.250-0.020
predicted_BB0.000-0.096
predicted_H1.000-0.056
predicted_HR0.000-0.125
predicted_OBP0.250-0.038
predicted_R0.000-0.491
predicted_RBI0.000-0.346
predicted_SLG0.250-0.171
predicted_SO1.0000.143
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR1.0001.000
PA4.000-
R1.0001.000
RBI3.0003.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 66
Reference playing time: 3.970
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-16.0008.0001.0000.0000.0000.0003.0000.0004.0000.50000.52940.56250.50000.00000.00000.00000.2500
last_100.2010-40.00011.0001.0000.0000.0000.0003.0000.0009.0000.27500.29270.30000.27500.00000.00000.00000.2250
season0.6066-262.00074.00013.0001.00015.00037.00034.0007.00056.0000.28240.31290.51150.28240.05730.14120.02670.2137
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1810
predicted_3B0.0090
predicted_AB3.8260
predicted_AVG0.3172
predicted_BB0.0840
predicted_H1.2140
predicted_HBP0.1110
predicted_HR0.1310
predicted_OBP0.3484
predicted_R0.4990
predicted_RBI0.3420
predicted_SLG0.4726
predicted_SO0.8530
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.19700.18100.1903model_form_blend
predicted_3B0.01500.00900.0125model_form_blend
predicted_AB3.97003.82603.9093model_form_blend
predicted_AVG0.26500.31720.2870model_form_blend
predicted_BB0.10600.08400.0967model_form_blend
predicted_H0.98001.21401.0786model_form_blend
predicted_HBP-0.11100.1110form_only
predicted_HR0.13000.13100.1304model_form_blend
predicted_OBP0.33700.34840.3418model_form_blend
predicted_R0.51500.49900.5083model_form_blend
predicted_RBI0.37000.34200.3582model_form_blend
predicted_SLG0.44800.47260.4584model_form_blend
predicted_SO0.84800.85300.8501model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date213
Season rows before report date213
Report year2026
Profile rows used66
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H2
2B1
3B0
HR1
R1
RBI3
BB0
SO1
SF0
HBP0
season_avg0.282

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.5
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB2
Hitting_battingOrder7
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedLF
gameID20260617_SF@ATL_2
game_typefull
mlbID669477
playerID669477
playerNameCasey Schmitt
posDH
startedTrue
startingPositionLF
teamSF
teamID24
game_date2026-06-17
sl_k_percent19.9
sl_bb_percent2.5
sl_woba0.353
sl_xwoba0.344
sl_xba0.282
sl_xslg0.491
sl_sweet_spot_percent38.2
sl_barrel_batted_rate11.8
sl_hard_hit_percent41.5
sl_exit_velocity_avg89.1
sl_launch_angle_avg20.9
sl_whiff_percent22.3
sl_swing_percent53.7
Bryce Eldridge (805811) · BATTER · RF · Team SF
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 69
All-history rows before 20260618: 69
System season_avg: 0.3250
Data season_avg (2026 season-to-date): 0.2533
Diff (system - data): 0.0717
System opponent_avg: 0.6000
System season_avg diverges from 2026 season-to-date by 0.0717. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2650.0000.000Hitting_2B0.1740.000-0.1740.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.3534.0003.000Hitting_AB3.3195.0000.681-1.000
predicted_AVG0.2850.0000.333Hitting_AVG0.2530.200-0.253-0.200
predicted_BB0.5290.0000.000Hitting_BB0.4490.000-0.4490.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.8700.0001.000Hitting_H0.8411.000-0.841-1.000
predicted_HR0.1600.0000.000Hitting_HR0.1301.000-0.130-1.000
predicted_OBP0.3910.0000.333Hitting_OBP0.3410.200-0.341-0.200
predicted_R0.5590.0001.000Hitting_R0.3621.000-0.362-1.000
predicted_RBI0.5300.0000.000Hitting_RBI0.2901.000-0.290-1.000
predicted_SLG0.5140.0000.333Hitting_SLG0.4240.800-0.424-0.800
predicted_SO0.7653.0001.000Hitting_SO0.8701.0002.1302.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics2
Deboosted Metrics8
Better Metrics1
Worse Metrics9
Biggest Boostpredicted_SO: 0.7650 -> 3.0000 (boost 2.2350, worse)
Biggest Deboostpredicted_H: 0.8700 -> 0.0000 (deboost -0.8700, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend54150predicted_H: 0.8700 -> 0.9778 (boost 0.1078, better)predicted_SO: 0.7650 -> 0.7091 (deboost -0.0559, better)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.5372 -> 0.5057 (deboost -0.0315, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling61506predicted_SO: 0.7145 -> 1.0000 (boost 0.2855, worse)predicted_RBI: 0.5588 -> 0.0000 (deboost -0.5588, worse)AB rounded to 3 (raw=3.39), rates preserved: AVG=0.282 HR/AB=0.051
5consistency_constraints11010predicted_R: 0.5156 -> 1.0000 (boost 0.4844, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2825 -> 0.3330 (boost 0.0505, better)predicted_SLG: 0.5057 -> 0.3330 (deboost -0.1727, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference42213predicted_SO: 1.0000 -> 3.0000 (boost 2.0000, worse)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.3330 -> 0.5057 (boost 0.1727, better)predicted_AVG: 0.3330 -> 0.2825 (deboost -0.0505, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "805811",
  "player_name": "Bryce Eldridge",
  "position": "RF",
  "team": "SF",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.265,
        "predicted_3B": 0.0,
        "predicted_AB": 3.353,
        "predicted_AVG": 0.285,
        "predicted_BB": 0.529,
        "predicted_H": 0.87,
        "predicted_HR": 0.16,
        "predicted_OBP": 0.391,
        "predicted_R": 0.559,
        "predicted_RBI": 0.53,
        "predicted_SLG": 0.514,
        "predicted_SO": 0.765
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2377,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.3898,
        "predicted_AVG": 0.3034,
        "predicted_BB": 0.5508,
        "predicted_H": 0.9778,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.1798,
        "predicted_OBP": 0.4045,
        "predicted_R": 0.5336,
        "predicted_RBI": 0.5783,
        "predicted_SLG": 0.5372,
        "predicted_SO": 0.7091
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.265,
          "after": 0.2377,
          "delta": -0.0273,
          "percent_delta": -0.103,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.353,
          "after": 3.3898,
          "delta": 0.0368,
          "percent_delta": 0.011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.285,
          "after": 0.3034,
          "delta": 0.0184,
          "percent_delta": 0.0646,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.529,
          "after": 0.5508,
          "delta": 0.0218,
          "percent_delta": 0.0412,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.87,
          "after": 0.9778,
          "delta": 0.1078,
          "percent_delta": 0.1239,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.16,
          "after": 0.1798,
          "delta": 0.0198,
          "percent_delta": 0.1237,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.391,
          "after": 0.4045,
          "delta": 0.0135,
          "percent_delta": 0.0345,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.559,
          "after": 0.5336,
          "delta": -0.0254,
          "percent_delta": -0.0454,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.53,
          "after": 0.5783,
          "delta": 0.0483,
          "percent_delta": 0.0911,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.514,
          "after": 0.5372,
          "delta": 0.0232,
          "percent_delta": 0.0451,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.765,
          "after": 0.7091,
          "delta": -0.0559,
          "percent_delta": -0.0731,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 4,
        "deboosted_metrics": 1,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.87,
          "after": 0.9778,
          "delta": 0.1078,
          "percent_delta": 0.1239,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 0.765,
          "after": 0.7091,
          "delta": -0.0559,
          "percent_delta": -0.0731,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 34
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2377,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.3898,
        "predicted_AVG": 0.2825,
        "predicted_BB": 0.5466,
        "predicted_H": 0.9575,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.1724,
        "predicted_OBP": 0.3821,
        "predicted_R": 0.5156,
        "predicted_RBI": 0.5588,
        "predicted_SLG": 0.5057,
        "predicted_SO": 0.7145
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2377,
          "after": 0.2377,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.3898,
          "after": 3.3898,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.3034,
          "after": 0.2825,
          "delta": -0.0209,
          "percent_delta": -0.0689,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.5508,
          "after": 0.5466,
          "delta": -0.0042,
          "percent_delta": -0.0076,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9778,
          "after": 0.9575,
          "delta": -0.0203,
          "percent_delta": -0.0208,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.006,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1798,
          "after": 0.1724,
          "delta": -0.0074,
          "percent_delta": -0.0412,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4045,
          "after": 0.3821,
          "delta": -0.0224,
          "percent_delta": -0.0554,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5336,
          "after": 0.5156,
          "delta": -0.018,
          "percent_delta": -0.0337,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5783,
          "after": 0.5588,
          "delta": -0.0195,
          "percent_delta": -0.0337,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5372,
          "after": 0.5057,
          "delta": -0.0315,
          "percent_delta": -0.0586,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7091,
          "after": 0.7145,
          "delta": 0.0054,
          "percent_delta": 0.0076,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.5372,
          "after": 0.5057,
          "delta": -0.0315,
          "percent_delta": -0.0586,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.39), rates preserved: AVG=0.282 HR/AB=0.051",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2377,
          "after": 0.0,
          "delta": -0.2377,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.3898,
          "after": 3.0,
          "delta": -0.3898,
          "percent_delta": -0.115,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.5466,
          "after": 0.0,
          "delta": -0.5466,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9575,
          "after": 1.0,
          "delta": 0.0425,
          "percent_delta": 0.0444,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.0,
          "delta": -0.006,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1724,
          "after": 0.0,
          "delta": -0.1724,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5588,
          "after": 0.0,
          "delta": -0.5588,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7145,
          "after": 1.0,
          "delta": 0.2855,
          "percent_delta": 0.3996,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 1,
        "deboosted_metrics": 5,
        "better_metrics": 0,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.7145,
          "after": 1.0,
          "delta": 0.2855,
          "percent_delta": 0.3996,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.5588,
          "after": 0.0,
          "delta": -0.5588,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5156,
          "after": 1.0,
          "delta": 0.4844,
          "percent_delta": 0.9395,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5156,
          "after": 1.0,
          "delta": 0.4844,
          "percent_delta": 0.9395,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2825,
          "after": 0.333,
          "delta": 0.0505,
          "percent_delta": 0.1788,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3821,
          "after": 0.333,
          "delta": -0.0491,
          "percent_delta": -0.1285,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5057,
          "after": 0.333,
          "delta": -0.1727,
          "percent_delta": -0.3415,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2825,
          "after": 0.333,
          "delta": 0.0505,
          "percent_delta": 0.1788,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.5057,
          "after": 0.333,
          "delta": -0.1727,
          "percent_delta": -0.3415,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 2,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2825,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3821,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.5057,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2825,
          "delta": -0.0505,
          "percent_delta": -0.1518,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3821,
          "delta": 0.0491,
          "percent_delta": 0.1474,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.5057,
          "delta": 0.1727,
          "percent_delta": 0.5185,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.5057,
          "delta": 0.1727,
          "percent_delta": 0.5185,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2825,
          "delta": -0.0505,
          "percent_delta": -0.1518,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.265,
        "after": 0.0,
        "delta": -0.265,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.353,
        "after": 4.0,
        "delta": 0.647,
        "percent_delta": 0.193,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.285,
        "after": 0.2825,
        "delta": -0.0025,
        "percent_delta": -0.0088,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.529,
        "after": 0.0,
        "delta": -0.529,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.87,
        "after": 0.0,
        "delta": -0.87,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.16,
        "after": 0.0,
        "delta": -0.16,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.391,
        "after": 0.3821,
        "delta": -0.0089,
        "percent_delta": -0.0228,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.559,
        "after": 0.0,
        "delta": -0.559,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.53,
        "after": 0.0,
        "delta": -0.53,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.514,
        "after": 0.5057,
        "delta": -0.0083,
        "percent_delta": -0.0161,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.765,
        "after": 3.0,
        "delta": 2.235,
        "percent_delta": 2.9216,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 2,
      "deboosted_metrics": 8,
      "better_metrics": 1,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.765,
        "after": 3.0,
        "delta": 2.235,
        "percent_delta": 2.9216,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.87,
        "after": 0.0,
        "delta": -0.87,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.265-
predicted_3B0.000-
predicted_AB3.353-
predicted_AVG0.285-
predicted_BB0.529-
predicted_H0.870-
predicted_HR0.160-
predicted_OBP0.391-
predicted_R0.559-
predicted_RBI0.530-
predicted_SLG0.514-
predicted_SO0.765-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.238-0.027
predicted_3B0.0010.001
predicted_AB3.3900.037
predicted_AVG0.3030.018
predicted_BB0.5510.022
predicted_H0.9780.108
predicted_HBP0.006-
predicted_HR0.1800.020
predicted_OBP0.4050.014
predicted_R0.534-0.025
predicted_RBI0.5780.048
predicted_SLG0.5370.023
predicted_SO0.709-0.056
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2380.000
predicted_3B0.0010.000
predicted_AB3.3900.000
predicted_AVG0.282-0.021
predicted_BB0.547-0.004
predicted_H0.958-0.020
predicted_HBP0.0060.000
predicted_HR0.172-0.007
predicted_OBP0.382-0.022
predicted_R0.516-0.018
predicted_RBI0.559-0.020
predicted_SLG0.506-0.031
predicted_SO0.7150.005
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.39), rates preserved: AVG=0.282 HR/AB=0.051

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.238
predicted_3B0.000-0.001
predicted_AB3.000-0.390
predicted_AVG0.3330.051
predicted_BB0.000-0.547
predicted_H1.0000.042
predicted_HR0.000-0.172
predicted_OBP0.333-0.049
predicted_R1.0000.484
predicted_RBI0.000-0.559
predicted_SLG0.333-0.173
predicted_SO1.0000.285
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO3.0002.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 34
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-16.0006.0000.0000.0001.0004.0001.0004.0001.0000.37500.50000.56250.37500.06250.25000.25000.0625
last_100.2010-35.00014.0002.0000.0004.00011.0006.0008.0004.0000.40000.51160.80000.40000.11430.31430.22860.1143
season0.6034-114.00037.0009.0000.0006.00017.00019.00018.00026.0000.32460.41350.56140.32460.05260.14910.15790.2281
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1960
predicted_3B0.0020
predicted_AB3.4460
predicted_AVG0.3315
predicted_BB0.5840
predicted_H1.1420
predicted_HBP0.0060
predicted_HR0.2100
predicted_OBP0.4252
predicted_R0.4950
predicted_RBI0.6520
predicted_SLG0.5726
predicted_SO0.6240
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.26500.19600.2377model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB3.35303.44603.3898model_form_blend
predicted_AVG0.28500.33150.3034model_form_blend
predicted_BB0.52900.58400.5508model_form_blend
predicted_H0.87001.14200.9778model_form_blend
predicted_HBP-0.00600.0060form_only
predicted_HR0.16000.21000.1798model_form_blend
predicted_OBP0.39100.42520.4045model_form_blend
predicted_R0.55900.49500.5336model_form_blend
predicted_RBI0.53000.65200.5783model_form_blend
predicted_SLG0.51400.57260.5372model_form_blend
predicted_SO0.76500.62400.7091model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date69
Season rows before report date69
Report year2026
Profile rows used34
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO3
SF0
HBP0
season_avg0.325

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.2
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R1
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB4
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B
gameID20260617_SF@ATL_2
game_typefull
mlbID805811
playerID805811
playerNameBryce Eldridge
posDH
startedTrue
startingPosition1B
teamSF
teamID24
game_date2026-06-17
sl_k_percent19.8
sl_bb_percent13.0
sl_woba0.413
sl_xwoba0.403
sl_xba0.302
sl_xslg0.555
sl_sweet_spot_percent34.1
sl_barrel_batted_rate13.6
sl_hard_hit_percent56.8
sl_exit_velocity_avg91.8
sl_launch_angle_avg13.2
sl_whiff_percent21.2
sl_swing_percent45.9
Landen Roupp (694738) · PITCHER · Starter · Team SF
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 14
All-history rows before 20260618: 14

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB4.0004.0004.000Pitching_BB2.2862.0001.7142.000
predicted_ER5.0005.0005.000Pitching_ER2.5004.0002.5001.000
predicted_H6.0006.0006.000Pitching_H4.5714.0001.4292.000
predicted_IP5.1005.1005.100Pitching_InningsPitched5.1434.200-0.0430.900
predicted_SO2.0002.0002.000Pitching_SO5.8575.000-3.857-3.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 5.3333 -> 5.1000 (deboost -0.2333, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_IP: 5.3333 -> 5.1000 (deboost -0.2333, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "694738",
  "player_name": "Landen Roupp",
  "position": "Starter",
  "team": "SF",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 4.0,
        "predicted_ER": 5.0,
        "predicted_H": 6.0,
        "predicted_HR": 0.0,
        "predicted_IP": 5.3333,
        "predicted_SO": 2.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 4.0,
        "predicted_ER": 5.0,
        "predicted_H": 6.0,
        "predicted_HR": 0.0,
        "predicted_IP": 5.1,
        "predicted_R": 5.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 6.0,
          "after": 6.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.3333,
          "after": 5.1,
          "delta": -0.2333,
          "percent_delta": -0.0438,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 5.3333,
          "after": 5.1,
          "delta": -0.2333,
          "percent_delta": -0.0438,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 4.0,
        "after": 4.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 5.0,
        "after": 5.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 6.0,
        "after": 6.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 5.3333,
        "after": 5.1,
        "delta": -0.2333,
        "percent_delta": -0.0437,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 5.3333,
        "after": 5.1,
        "delta": -0.2333,
        "percent_delta": -0.0437,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB4.000-
predicted_ER5.000-
predicted_H6.000-
predicted_HR0.000-
predicted_IP5.333-
predicted_SO2.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 14
Reference playing time: 5.333
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.45525.10016.00029.00011.00024.0002.0005.68421.57890.63161.14470.43420.94740.0790
last_100.351051.20029.00049.00025.00058.0004.0005.05161.43230.56130.94840.48391.12260.0774
season0.201474.10035.00064.00032.00082.0004.0004.23771.29150.47080.86100.43051.10310.0538
Weighted Prediction From Real Data
MetricValue
predicted_BB2.2340
predicted_ER2.9010
predicted_ERA4.9984
predicted_H5.2610
predicted_HR0.4830
predicted_IP5.1000
predicted_SO5.2900
predicted_WHIP1.4351
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB4.00002.23403.0485model_form_blend
predicted_ER5.00002.90103.8691model_form_blend
predicted_ERA-4.99844.9984form_only
predicted_H6.00005.26105.6018model_form_blend
predicted_HR0.00000.48300.2602model_form_blend
predicted_IP5.10005.10005.1000model_form_blend
predicted_SO2.00005.29003.7726model_form_blend
predicted_WHIP-1.43511.4351form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date14
Season rows before report date14
Report year2026
Profile rows used14
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP5.1
H6
R5
ER5
BB4
SO2
HR0
BF26
Pitches113

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB2
Pitching_Balk0
Pitching_Batters Faced20
Pitching_ER4
Pitching_ERA4.24
Pitching_Flyouts3
Pitching_Groundouts4
Pitching_H4
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched4.2
Pitching_Pitches105
Pitching_R4
Pitching_SO5
Pitching_Strikes64
Pitching_Wild Pitch0
Pitching_decisionL
Pitching_pitchingOrder1
allPositionsPlayedP
gameID20260612_CHC@SF
game_typefull
mlbID694738
playerID694738
playerNameLanden Roupp
posP
startedTrue
startingPositionP
teamSF
teamID24
game_date2026-06-12
sl_k_percent26.2
sl_bb_percent10.2
sl_woba0.301
sl_xwoba0.289
sl_sweet_spot_percent33.0
sl_barrel_batted_rate3.6
sl_hard_hit_percent29.9
sl_whiff_percent26.2
sl_swing_percent42.3
sl_avg_best_speed77.330602813
sl_avg_hyper_speed92.908893958
Caleb Kilian (668873) · PITCHER · Middle Reliever · Team SF
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 31
All-history rows before 20260618: 31

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.4840.000-0.4840.000
predicted_ER0.0000.0000.000Pitching_ER0.3550.000-0.3550.000
predicted_H0.0000.0000.000Pitching_H0.6770.000-0.6770.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.9000.2000.1000.800
predicted_SO1.0001.0001.000Pitching_SO1.2262.000-0.226-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "668873",
  "player_name": "Caleb Kilian",
  "position": "Middle Reliever",
  "team": "SF",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 31
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.2000.0002.0001.0008.0000.0000.00000.64290.00000.42860.21431.71430.0000
last_100.351010.0005.0009.0003.00013.0002.0004.50001.20000.50000.90000.30001.30000.2000
season0.203132.10011.00021.00015.00038.0005.0003.06191.11340.34020.64950.46391.17530.1546
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3240
predicted_ER0.3560
predicted_ERA3.2035
predicted_H0.7850
predicted_HR0.1210
predicted_IP1.0000
predicted_SO1.2320
predicted_WHIP1.1094
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.32400.1507model_form_blend
predicted_ER0.00000.35600.1656model_form_blend
predicted_ERA-3.20353.2035form_only
predicted_H0.00000.78500.3650model_form_blend
predicted_HR0.00000.12100.0563model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO1.00001.23201.1079model_form_blend
predicted_WHIP-1.10941.1094form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date31
Season rows before report date31
Report year2026
Profile rows used31
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB0
SO1
HR0
BF3
Pitches17

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced2
Pitching_ER0
Pitching_ERA3.06
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners2
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.2
Pitching_Pitches8
Pitching_R0
Pitching_SO2
Pitching_Strikes7
Pitching_Wild Pitch0
Pitching_pitchingOrder4
allPositionsPlayedP
gameID20260617_SF@ATL
game_typefull
mlbID668873
playerID668873
playerNameCaleb Kilian
posP
startedFalse
startingPositionP
teamSF
teamID24
game_date2026-06-17
sl_k_percent28.6
sl_bb_percent11.3
sl_woba0.268
sl_xwoba0.302
sl_sweet_spot_percent32.1
sl_barrel_batted_rate9.0
sl_hard_hit_percent38.5
sl_whiff_percent27.0
sl_swing_percent48.7
sl_avg_best_speed76.913913077
sl_avg_hyper_speed93.726986104
Erik Miller (669062) · PITCHER · Middle Reliever · Team SF
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 24
All-history rows before 20260618: 24

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB0.7080.0000.2921.000
predicted_ER0.0000.0000.000Pitching_ER0.4171.000-0.417-1.000
predicted_H1.0001.0001.000Pitching_H0.7081.0000.2920.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.6830.1000.3170.900
predicted_SO1.0001.0001.000Pitching_SO1.1250.000-0.1251.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_IP: 0.6667 -> 1.0000 (boost 0.3333, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final11010predicted_IP: 0.6667 -> 1.0000 (boost 0.3333, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "669062",
  "player_name": "Erik Miller",
  "position": "Middle Reliever",
  "team": "SF",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.6667,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 0.6667,
          "after": 1.0,
          "delta": 0.3333,
          "percent_delta": 0.5,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_IP",
          "before": 0.6667,
          "after": 1.0,
          "delta": 0.3333,
          "percent_delta": 0.5,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 0.6667,
        "after": 1.0,
        "delta": 0.3333,
        "percent_delta": 0.4999,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_IP",
        "before": 0.6667,
        "after": 1.0,
        "delta": 0.3333,
        "percent_delta": 0.4999,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER0.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP0.667-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 23
Reference playing time: 0.667
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4553.1001.0006.0002.0003.0001.0002.70002.40000.30001.80000.60000.90000.3000
last_100.35107.2003.0008.0007.0009.0002.0003.52171.95650.39131.04350.91301.17390.2609
season0.202319.2009.00016.00015.00027.0002.0004.11861.57630.45760.81360.76271.37290.1017
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3680
predicted_ER0.3070
predicted_ERA3.9658
predicted_H0.7890
predicted_HR0.1320
predicted_IP0.2000
predicted_SO0.6990
predicted_WHIP1.6629
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00000.36800.7391model_form_blend
predicted_ER0.00000.30700.1267model_form_blend
predicted_ERA-3.96583.9658form_only
predicted_H1.00000.78900.9129model_form_blend
predicted_HR0.00000.13200.0545model_form_blend
predicted_IP0.20000.20000.2000model_form_blend
predicted_SO1.00000.69900.8758model_form_blend
predicted_WHIP-1.66291.6629form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date24
Season rows before report date24
Report year2026
Profile rows used23
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H1
R0
ER0
BB1
SO1
HR0
BF5
Pitches20

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced2
Pitching_ER1
Pitching_ERA4.58
Pitching_Flyouts1
Pitching_Groundouts0
Pitching_H1
Pitching_HBP0
Pitching_HR1
Pitching_Inherited Runners2
Pitching_Inherited Runners Scored2
Pitching_InningsPitched0.1
Pitching_Pitches9
Pitching_R1
Pitching_SO0
Pitching_Strikes5
Pitching_Wild Pitch0
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260612_CHC@SF
game_typefull
mlbID669062
playerID669062
playerNameErik Miller
posP
startedFalse
startingPositionP
teamSF
teamID24
game_date2026-06-12
sl_k_percent29.3
sl_bb_percent18.5
sl_woba0.344
sl_xwoba0.329
sl_sweet_spot_percent36.2
sl_barrel_batted_rate10.6
sl_hard_hit_percent31.9
sl_whiff_percent32.3
sl_swing_percent36.3
sl_avg_best_speed70.04385
sl_avg_hyper_speed93.30396087
Ryan Walker (676254) · PITCHER · Middle Reliever · Team SF
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 19
All-history rows before 20260618: 19

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB0.5260.0000.4741.000
predicted_ER0.0000.0000.000Pitching_ER0.5790.000-0.5790.000
predicted_H0.0000.0000.000Pitching_H1.0531.000-1.053-1.000
predicted_IP0.2000.2000.200Pitching_InningsPitched0.8421.000-0.642-0.800
predicted_SO0.0000.0000.000Pitching_SO0.8952.000-0.895-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_IP: 0.1000 -> 0.2000 (boost 0.1000, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final11010predicted_IP: 0.1000 -> 0.2000 (boost 0.1000, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "676254",
  "player_name": "Ryan Walker",
  "position": "Middle Reliever",
  "team": "SF",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.1,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.2,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 0.1,
          "after": 0.2,
          "delta": 0.1,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_IP",
          "before": 0.1,
          "after": 0.2,
          "delta": 0.1,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 0.1,
        "after": 0.2,
        "delta": 0.1,
        "percent_delta": 1.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_IP",
        "before": 0.1,
        "after": 0.2,
        "delta": 0.1,
        "percent_delta": 1.0,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP0.100-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 19
Reference playing time: 0.100
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.2004.0006.0003.0004.0001.0007.71431.92860.85711.28570.64290.85710.2143
last_100.35109.1007.00011.0005.0007.0001.0006.75001.71430.75001.17860.53570.75000.1071
season0.201918.10011.00020.00010.00017.0002.0005.40001.63640.60001.09090.54540.92730.1091
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2810
predicted_ER0.3770
predicted_ERA5.5218
predicted_H0.6590
predicted_HR0.0920
predicted_IP0.2000
predicted_SO0.5490
predicted_WHIP1.5301
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00000.28100.7084model_form_blend
predicted_ER0.00000.37700.1529model_form_blend
predicted_ERA-5.52185.5218form_only
predicted_H0.00000.65900.2672model_form_blend
predicted_HR0.00000.09200.0373model_form_blend
predicted_IP0.10000.20000.1000model_form_blend
predicted_SO0.00000.54900.2226model_form_blend
predicted_WHIP-1.53011.5301form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date19
Season rows before report date19
Report year2026
Profile rows used19
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP0.2
H0
R0
ER0
BB1
SO0
HR0
BF3
Pitches18

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER0
Pitching_ERA5.40
Pitching_Flyouts1
Pitching_Groundouts0
Pitching_H1
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners1
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches15
Pitching_R0
Pitching_SO2
Pitching_Strikes11
Pitching_Wild Pitch0
Pitching_decisionH
Pitching_pitchingOrder4
allPositionsPlayedP
gameID20260617_SF@ATL_2
game_typefull
mlbID676254
playerID676254
playerNameRyan Walker
posP
startedFalse
startingPositionP
teamSF
teamID24
game_date2026-06-17
sl_k_percent20.2
sl_bb_percent11.9
sl_woba0.345
sl_xwoba0.314
sl_sweet_spot_percent28.6
sl_barrel_batted_rate5.4
sl_hard_hit_percent30.4
sl_whiff_percent17.3
sl_swing_percent41.2
sl_avg_best_speed71.33052037
sl_avg_hyper_speed92.360391852

Home Team: ATL

Home Pitcher Deep Analysis

FieldValue
PitcherMartín Pérez
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score-0.0702
ESPN Rank49
Movement AvailableTrue
Primary Pitch-
Movement Score-0.2396
Avg Velo85.4512
Avg Spin1966.6648
HB Inches0
IVB Inches0
Release Extension0
Pre IP5.2000
Pre ER3
Pre H6
Pre BB0
Pre SO8
Season ERA2.9032
Season WHIP1.0484
Role Avg IP5.2670
Recent Avg IP5.2000
Last Start IP5.1000
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "ATL",
    "games": 81,
    "wins": 51,
    "losses": 30,
    "win_pct": 0.6296,
    "runs_scored": 396.0,
    "runs_allowed": 288.0,
    "run_differential": 108.0,
    "run_differential_per_game": 1.3333,
    "avg_runs_scored": 4.8889,
    "avg_runs_allowed": 3.5556,
    "offense_index": 1.0822,
    "defense_index": 1.2706,
    "current_streak": "L4",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 2.7,
      "avg_runs_allowed": 4.7,
      "run_differential": -20.0
    },
    "available": true,
    "quality_score": 0.1675
  },
  "opponent": {
    "team": "SF",
    "games": 84,
    "wins": 37,
    "losses": 47,
    "win_pct": 0.4405,
    "runs_scored": 371.0,
    "runs_allowed": 398.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3214,
    "avg_runs_scored": 4.4167,
    "avg_runs_allowed": 4.7381,
    "offense_index": 0.9776,
    "defense_index": 0.9535,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.7,
      "avg_runs_allowed": 4.2,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": -0.0547
  },
  "edges": {
    "quality_edge": 0.2222,
    "offense_edge": 0.0822,
    "opponent_offense_edge": -0.0224,
    "defense_strength": 0.2706,
    "opponent_defense_weakness": 0.0465,
    "recent_win_pct_edge": -0.4
  },
  "player_factors": {
    "ip": 1.0179,
    "run_prevention": 0.9582,
    "strikeout": 1.0085
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "527048",
    "profile": {
      "available": true,
      "pitcher_id": "527048",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 184.0,
        "k_percent": 20.8,
        "bb_percent": 8.6,
        "woba": 0.28,
        "xwoba": 0.314,
        "sweet_spot_percent": 36.3,
        "barrel_batted_rate": 7.1,
        "hard_hit_percent": 38.0,
        "avg_best_speed": 77.0384,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 22.5,
        "swing_percent": 43.6
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.1484,
        "command_and_miss": -0.2393,
        "regression_edge": -0.9714,
        "xwoba_edge": 0.0286,
        "barrel_edge": 0.0444,
        "hard_hit_edge": 0.0429,
        "whiff_edge": -0.4571,
        "bb_edge": 0.15,
        "pitch_design_score": -0.2396
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "527048",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 82,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 82,
          "pitch_usage": 0.0,
          "release_speed": 85.45123859333805,
          "release_spin_rate": 1966.6647703525239,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 82,
            "pitch_usage": 0.0,
            "release_speed": 85.45123859333805,
            "release_spin_rate": 1966.6647703525239,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 85.4512,
          "release_spin_rate": 1966.6648,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.2396,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -1.7111,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": -0.0702,
      "sample_weight": 0.736,
      "run_prevention_factor": 1.006,
      "strikeout_factor": 0.9794,
      "walk_factor": 0.9912,
      "homer_factor": 0.9955,
      "woba_minus_xwoba": -0.034,
      "regression_flag": "negative_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "527048",
        "espn_id": 31098,
        "player_name": "Martin Perez",
        "team": "ATL",
        "role": "pitcher",
        "espn_rank": 49,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 49,
          "gp_value": 14.0,
          "gp_rank": 279,
          "gs_value": 10.0,
          "gs_rank": 112,
          "qs_value": 1.0,
          "qs_rank": 134,
          "era_value": 2.9032,
          "era_rank": null,
          "w_value": 5.0,
          "w_rank": 39,
          "l_value": 3.0,
          "l_rank": 110,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 62.0,
          "ip_rank": 111,
          "h_value": 44.0,
          "h_rank": 132,
          "er_value": 20.0,
          "er_rank": 150,
          "hr_value": 6.0,
          "hr_rank": 125,
          "bb_value": 21.0,
          "bb_rank": 109,
          "k_value": 51.0,
          "k_rank": 108,
          "k_per_9_value": 7.403226,
          "k_per_9_rank": 26,
          "whip_value": 1.0483,
          "whip_rank": null,
          "war_value": 1.48,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 2.0,
        "factor": 1.0044,
        "adjusted": 2
      },
      "predicted_H": {
        "original": 4.0,
        "factor": 1.0044,
        "adjusted": 4
      },
      "predicted_BB": {
        "original": 2.0,
        "factor": 0.9935,
        "adjusted": 2
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9967,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 4.0,
        "factor": 0.9848,
        "adjusted": 4
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 38.2,
    "ER": 13,
    "H": 28,
    "BB": 15,
    "SO": 37,
    "HR": 3,
    "ERA": 3.025862068965517,
    "WHIP": 1.1120689655172413,
    "K9": 8.61206896551724,
    "HR9": 0.6982758620689654,
    "games_pitched": 9,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "527048",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 82,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 82,
    "pitch_usage": 0.0,
    "release_speed": 85.45123859333805,
    "release_spin_rate": 1966.6647703525239,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 82,
      "pitch_usage": 0.0,
      "release_speed": 85.45123859333805,
      "release_spin_rate": 1966.6647703525239,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 85.4512,
    "release_spin_rate": 1966.6648,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.2396,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -1.7111,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "role": "pitcher",
  "player_id": "527048",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 14,
  "reference_playing_time": 5.667,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 26.0,
        "ER": 11.0,
        "R": 11.0,
        "H": 21.0,
        "BB": 10.0,
        "SO": 23.0,
        "HR": 2.0,
        "BF": 105.0,
        "Pitches": 401.0
      },
      "per_game": {
        "IP": 5.1,
        "ER": 2.2,
        "R": 2.2,
        "H": 4.2,
        "BB": 2.0,
        "SO": 4.6,
        "HR": 0.4,
        "BF": 21.0,
        "Pitches": 80.2
      },
      "rates": {
        "ERA": 3.8077,
        "WHIP": 1.1923,
        "ER_per_IP": 0.42308,
        "H_per_IP": 0.80769,
        "BB_per_IP": 0.38462,
        "SO_per_IP": 0.88462,
        "HR_per_IP": 0.07692
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 41.2,
        "ER": 15.0,
        "R": 15.0,
        "H": 31.0,
        "BB": 15.0,
        "SO": 41.0,
        "HR": 5.0,
        "BF": 166.0,
        "Pitches": 654.0
      },
      "per_game": {
        "IP": 4.0,
        "ER": 1.5,
        "R": 1.5,
        "H": 3.1,
        "BB": 1.5,
        "SO": 4.1,
        "HR": 0.5,
        "BF": 16.6,
        "Pitches": 65.4
      },
      "rates": {
        "ERA": 3.24,
        "WHIP": 1.104,
        "ER_per_IP": 0.36,
        "H_per_IP": 0.744,
        "BB_per_IP": 0.36,
        "SO_per_IP": 0.984,
        "HR_per_IP": 0.12
      }
    },
    "season": {
      "games": 14,
      "totals": {
        "IP": 62.0,
        "ER": 20.0,
        "R": 20.0,
        "H": 44.0,
        "BB": 21.0,
        "SO": 51.0,
        "HR": 6.0,
        "BF": 245.0,
        "Pitches": 956.0
      },
      "per_game": {
        "IP": 4.1,
        "ER": 1.4286,
        "R": 1.4286,
        "H": 3.1429,
        "BB": 1.5,
        "SO": 3.6429,
        "HR": 0.4286,
        "BF": 17.5,
        "Pitches": 68.2857
      },
      "rates": {
        "ERA": 2.9032,
        "WHIP": 1.0484,
        "ER_per_IP": 0.32258,
        "H_per_IP": 0.70968,
        "BB_per_IP": 0.33871,
        "SO_per_IP": 0.82258,
        "HR_per_IP": 0.09677
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 5.0,
    "predicted_ER": 2.034,
    "predicted_H": 4.045,
    "predicted_BB": 1.804,
    "predicted_SO": 4.511,
    "predicted_HR": 0.538,
    "predicted_ERA": 3.7124,
    "predicted_WHIP": 1.1865
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.4612,
  "form_weight": 0.5388,
  "form_reliability": 0.7368,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 5.2,
      "form": 5.0,
      "final": 5.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 4.0,
      "form": 2.034,
      "final": 2.9407,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 6.0,
      "form": 4.045,
      "final": 4.9466,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 1.804,
      "final": 0.972,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 8.0,
      "form": 4.511,
      "final": 6.1201,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 1.0,
      "form": 0.538,
      "final": 0.7511,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.7124,
      "final": 3.7124,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1865,
      "final": 1.1865,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherDylan Lee
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.5783
ESPN Rank61
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H1
Pre BB2
Pre SO3
Season ERA1.1368
Season WHIP0.6316
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "ATL",
    "games": 81,
    "wins": 51,
    "losses": 30,
    "win_pct": 0.6296,
    "runs_scored": 396.0,
    "runs_allowed": 288.0,
    "run_differential": 108.0,
    "run_differential_per_game": 1.3333,
    "avg_runs_scored": 4.8889,
    "avg_runs_allowed": 3.5556,
    "offense_index": 1.0822,
    "defense_index": 1.2706,
    "current_streak": "L4",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 2.7,
      "avg_runs_allowed": 4.7,
      "run_differential": -20.0
    },
    "available": true,
    "quality_score": 0.1675
  },
  "opponent": {
    "team": "SF",
    "games": 84,
    "wins": 37,
    "losses": 47,
    "win_pct": 0.4405,
    "runs_scored": 371.0,
    "runs_allowed": 398.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3214,
    "avg_runs_scored": 4.4167,
    "avg_runs_allowed": 4.7381,
    "offense_index": 0.9776,
    "defense_index": 0.9535,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.7,
      "avg_runs_allowed": 4.2,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": -0.0547
  },
  "edges": {
    "quality_edge": 0.2222,
    "offense_edge": 0.0822,
    "opponent_offense_edge": -0.0224,
    "defense_strength": 0.2706,
    "opponent_defense_weakness": 0.0465,
    "recent_win_pct_edge": -0.4
  },
  "player_factors": {
    "ip": 1.0179,
    "run_prevention": 0.9582,
    "strikeout": 1.0085
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "669276",
    "profile": {
      "available": true,
      "pitcher_id": "669276",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 93.0,
        "k_percent": 34.8,
        "bb_percent": 4.3,
        "woba": 0.182,
        "xwoba": 0.212,
        "sweet_spot_percent": 34.3,
        "barrel_batted_rate": 4.3,
        "hard_hit_percent": 32.9,
        "avg_best_speed": 76.4059,
        "avg_hyper_speed": 92.9153,
        "whiff_percent": 38.2,
        "swing_percent": 53.8
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 1.6767,
        "command_and_miss": 1.6607,
        "regression_edge": -0.8571,
        "xwoba_edge": 2.5,
        "barrel_edge": 0.6667,
        "hard_hit_edge": 0.7714,
        "whiff_edge": 1.7857,
        "bb_edge": 1.225,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "669276",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.5783,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9508,
      "strikeout_factor": 1.0638,
      "walk_factor": 0.9559,
      "homer_factor": 0.9284,
      "woba_minus_xwoba": -0.03,
      "regression_flag": "negative_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "669276",
        "espn_id": 41455,
        "player_name": "Dylan Lee",
        "team": "ATL",
        "role": "pitcher",
        "espn_rank": 61,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 61,
          "gp_value": 33.0,
          "gp_rank": 22,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 1.1368,
          "era_rank": null,
          "w_value": 2.0,
          "w_rank": 180,
          "l_value": 0.0,
          "l_rank": 430,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 14.0,
          "hld_rank": 5,
          "ip_value": 31.2,
          "ip_rank": 225,
          "h_value": 15.0,
          "h_rank": 412,
          "er_value": 4.0,
          "er_rank": 528,
          "hr_value": 1.0,
          "hr_rank": 453,
          "bb_value": 5.0,
          "bb_rank": 474,
          "k_value": 40.0,
          "k_rank": 160,
          "k_per_9_value": 11.368422,
          "k_per_9_rank": 19,
          "whip_value": 0.6315,
          "whip_rank": null,
          "war_value": 1.33,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9779,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9779,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9802,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9678,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0287,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.0,
    "ER": 2,
    "H": 5,
    "BB": 3,
    "SO": 12,
    "HR": 1,
    "ERA": 2.0000000000000004,
    "WHIP": 0.8888888888888891,
    "K9": 12.000000000000002,
    "HR9": 1.0000000000000002,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "669276",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.288,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5571,
    "prior_weight": 0.4429
  },
  "role": "pitcher",
  "player_id": "669276",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 33,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 1.0,
        "BB": 2.0,
        "SO": 6.0,
        "HR": 0.0,
        "BF": 15.0,
        "Pitches": 53.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.2,
        "BB": 0.4,
        "SO": 1.2,
        "HR": 0.0,
        "BF": 3.0,
        "Pitches": 10.6
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 0.75,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.25,
        "BB_per_IP": 0.5,
        "SO_per_IP": 1.5,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.0,
        "ER": 2.0,
        "R": 3.0,
        "H": 5.0,
        "BB": 3.0,
        "SO": 12.0,
        "HR": 1.0,
        "BF": 35.0,
        "Pitches": 138.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.3,
        "H": 0.5,
        "BB": 0.3,
        "SO": 1.2,
        "HR": 0.1,
        "BF": 3.5,
        "Pitches": 13.8
      },
      "rates": {
        "ERA": 2.0,
        "WHIP": 0.8889,
        "ER_per_IP": 0.22222,
        "H_per_IP": 0.55556,
        "BB_per_IP": 0.33333,
        "SO_per_IP": 1.33333,
        "HR_per_IP": 0.11111
      }
    },
    "season": {
      "games": 33,
      "totals": {
        "IP": 31.2,
        "ER": 4.0,
        "R": 5.0,
        "H": 15.0,
        "BB": 5.0,
        "SO": 40.0,
        "HR": 1.0,
        "BF": 115.0,
        "Pitches": 463.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.1212,
        "R": 0.1515,
        "H": 0.4545,
        "BB": 0.1515,
        "SO": 1.2121,
        "HR": 0.0303,
        "BF": 3.4848,
        "Pitches": 14.0303
      },
      "rates": {
        "ERA": 1.1368,
        "WHIP": 0.6316,
        "ER_per_IP": 0.12632,
        "H_per_IP": 0.47368,
        "BB_per_IP": 0.15789,
        "SO_per_IP": 1.26316,
        "HR_per_IP": 0.03158
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.256,
    "predicted_H": 0.6,
    "predicted_BB": 0.338,
    "predicted_SO": 1.092,
    "predicted_HR": 0.082,
    "predicted_ERA": 2.5133,
    "predicted_WHIP": 1.024
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5371,
  "form_weight": 0.4629,
  "form_reliability": 0.5571,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.288,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5571,
    "prior_weight": 0.4429
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.256,
      "final": 0.1185,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.6,
      "final": 0.8149,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 2.0,
      "form": 0.338,
      "final": 1.2307,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 3.0,
      "form": 1.092,
      "final": 2.1168,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.082,
      "final": 0.038,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 2.5133,
      "final": 2.5133,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.024,
      "final": 1.024,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherRaisel Iglesias
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.5052
ESPN Rank86
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H0
Pre BB0
Pre SO1
Season ERA1.1571
Season WHIP0.9857
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "ATL",
    "games": 81,
    "wins": 51,
    "losses": 30,
    "win_pct": 0.6296,
    "runs_scored": 396.0,
    "runs_allowed": 288.0,
    "run_differential": 108.0,
    "run_differential_per_game": 1.3333,
    "avg_runs_scored": 4.8889,
    "avg_runs_allowed": 3.5556,
    "offense_index": 1.0822,
    "defense_index": 1.2706,
    "current_streak": "L4",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 2.7,
      "avg_runs_allowed": 4.7,
      "run_differential": -20.0
    },
    "available": true,
    "quality_score": 0.1675
  },
  "opponent": {
    "team": "SF",
    "games": 84,
    "wins": 37,
    "losses": 47,
    "win_pct": 0.4405,
    "runs_scored": 371.0,
    "runs_allowed": 398.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3214,
    "avg_runs_scored": 4.4167,
    "avg_runs_allowed": 4.7381,
    "offense_index": 0.9776,
    "defense_index": 0.9535,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.7,
      "avg_runs_allowed": 4.2,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": -0.0547
  },
  "edges": {
    "quality_edge": 0.2222,
    "offense_edge": 0.0822,
    "opponent_offense_edge": -0.0224,
    "defense_strength": 0.2706,
    "opponent_defense_weakness": 0.0465,
    "recent_win_pct_edge": -0.4
  },
  "player_factors": {
    "ip": 1.0179,
    "run_prevention": 0.9582,
    "strikeout": 1.0085
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "628452",
    "profile": {
      "available": true,
      "pitcher_id": "628452",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 63.0,
        "k_percent": 30.3,
        "bb_percent": 5.6,
        "woba": 0.25,
        "xwoba": 0.238,
        "sweet_spot_percent": 26.3,
        "barrel_batted_rate": 5.4,
        "hard_hit_percent": 29.8,
        "avg_best_speed": 77.4027,
        "avg_hyper_speed": 92.5337,
        "whiff_percent": 32.6,
        "swing_percent": 53.6
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 1.4669,
        "command_and_miss": 1.0264,
        "regression_edge": 0.3429,
        "xwoba_edge": 2.2,
        "barrel_edge": 0.4222,
        "hard_hit_edge": 1.2143,
        "whiff_edge": 0.9857,
        "bb_edge": 0.9,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "628452",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.5052,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9571,
      "strikeout_factor": 1.0378,
      "walk_factor": 0.9676,
      "homer_factor": 0.9332,
      "woba_minus_xwoba": 0.012,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "628452",
        "espn_id": 33618,
        "player_name": "Raisel Iglesias",
        "team": "ATL",
        "role": "pitcher",
        "espn_rank": 86,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 86,
          "gp_value": 22.0,
          "gp_rank": 157,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 1.1571,
          "era_rank": null,
          "w_value": 0.0,
          "w_rank": 404,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 14.0,
          "sv_rank": 7,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 23.1,
          "ip_rank": 341,
          "h_value": 18.0,
          "h_rank": 367,
          "er_value": 3.0,
          "er_rank": 555,
          "hr_value": 1.0,
          "hr_rank": 453,
          "bb_value": 5.0,
          "bb_rank": 474,
          "k_value": 27.0,
          "k_rank": 277,
          "k_per_9_value": 10.414287,
          "k_per_9_rank": 21,
          "whip_value": 0.9857,
          "whip_rank": null,
          "war_value": 1.05,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9807,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9807,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9854,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9699,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.017,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.2,
    "ER": 3,
    "H": 12,
    "BB": 3,
    "SO": 12,
    "HR": 1,
    "ERA": 2.5312499999999996,
    "WHIP": 1.4062499999999998,
    "K9": 10.124999999999998,
    "HR9": 0.8437499999999999,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "628452",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.634,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.481,
    "prior_weight": 0.519
  },
  "role": "pitcher",
  "player_id": "628452",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 22,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.2,
        "ER": 1.0,
        "R": 2.0,
        "H": 6.0,
        "BB": 2.0,
        "SO": 6.0,
        "HR": 1.0,
        "BF": 23.0,
        "Pitches": 94.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.4,
        "H": 1.2,
        "BB": 0.4,
        "SO": 1.2,
        "HR": 0.2,
        "BF": 4.6,
        "Pitches": 18.8
      },
      "rates": {
        "ERA": 1.5882,
        "WHIP": 1.4118,
        "ER_per_IP": 0.17647,
        "H_per_IP": 1.05882,
        "BB_per_IP": 0.35294,
        "SO_per_IP": 1.05882,
        "HR_per_IP": 0.17647
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.2,
        "ER": 3.0,
        "R": 4.0,
        "H": 12.0,
        "BB": 3.0,
        "SO": 12.0,
        "HR": 1.0,
        "BF": 45.0,
        "Pitches": 177.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3,
        "R": 0.4,
        "H": 1.2,
        "BB": 0.3,
        "SO": 1.2,
        "HR": 0.1,
        "BF": 4.5,
        "Pitches": 17.7
      },
      "rates": {
        "ERA": 2.5312,
        "WHIP": 1.4062,
        "ER_per_IP": 0.28125,
        "H_per_IP": 1.125,
        "BB_per_IP": 0.28125,
        "SO_per_IP": 1.125,
        "HR_per_IP": 0.09375
      }
    },
    "season": {
      "games": 22,
      "totals": {
        "IP": 23.1,
        "ER": 3.0,
        "R": 4.0,
        "H": 18.0,
        "BB": 5.0,
        "SO": 27.0,
        "HR": 1.0,
        "BF": 89.0,
        "Pitches": 343.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.1364,
        "R": 0.1818,
        "H": 0.8182,
        "BB": 0.2273,
        "SO": 1.2273,
        "HR": 0.0455,
        "BF": 4.0455,
        "Pitches": 15.5909
      },
      "rates": {
        "ERA": 1.1571,
        "WHIP": 0.9857,
        "ER_per_IP": 0.12857,
        "H_per_IP": 0.77143,
        "BB_per_IP": 0.21429,
        "SO_per_IP": 1.15714,
        "HR_per_IP": 0.04286
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.358,
    "predicted_H": 0.998,
    "predicted_BB": 0.333,
    "predicted_SO": 1.017,
    "predicted_HR": 0.134,
    "predicted_ERA": 3.221,
    "predicted_WHIP": 1.3311
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5693,
  "form_weight": 0.4307,
  "form_reliability": 0.481,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.634,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.481,
    "prior_weight": 0.519
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.358,
      "final": 0.1542,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.998,
      "final": 0.4299,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.333,
      "final": 0.1434,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 1.017,
      "final": 1.0073,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.134,
      "final": 0.0577,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.221,
      "final": 3.221,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.3311,
      "final": 1.3311,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherRobert Suarez
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.2745
ESPN Rank45
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H1
Pre BB0
Pre SO1
Season ERA0.5870
Season WHIP0.7826
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "ATL",
    "games": 81,
    "wins": 51,
    "losses": 30,
    "win_pct": 0.6296,
    "runs_scored": 396.0,
    "runs_allowed": 288.0,
    "run_differential": 108.0,
    "run_differential_per_game": 1.3333,
    "avg_runs_scored": 4.8889,
    "avg_runs_allowed": 3.5556,
    "offense_index": 1.0822,
    "defense_index": 1.2706,
    "current_streak": "L4",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 2.7,
      "avg_runs_allowed": 4.7,
      "run_differential": -20.0
    },
    "available": true,
    "quality_score": 0.1675
  },
  "opponent": {
    "team": "SF",
    "games": 84,
    "wins": 37,
    "losses": 47,
    "win_pct": 0.4405,
    "runs_scored": 371.0,
    "runs_allowed": 398.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3214,
    "avg_runs_scored": 4.4167,
    "avg_runs_allowed": 4.7381,
    "offense_index": 0.9776,
    "defense_index": 0.9535,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.7,
      "avg_runs_allowed": 4.2,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": -0.0547
  },
  "edges": {
    "quality_edge": 0.2222,
    "offense_edge": 0.0822,
    "opponent_offense_edge": -0.0224,
    "defense_strength": 0.2706,
    "opponent_defense_weakness": 0.0465,
    "recent_win_pct_edge": -0.4
  },
  "player_factors": {
    "ip": 1.0179,
    "run_prevention": 0.9582,
    "strikeout": 1.0085
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "663158",
    "profile": {
      "available": true,
      "pitcher_id": "663158",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 88.0,
        "k_percent": 22.8,
        "bb_percent": 4.4,
        "woba": 0.195,
        "xwoba": 0.271,
        "sweet_spot_percent": 32.9,
        "barrel_batted_rate": 3.7,
        "hard_hit_percent": 30.5,
        "avg_best_speed": 71.4445,
        "avg_hyper_speed": 92.6022,
        "whiff_percent": 24.8,
        "swing_percent": 54.3
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 1.3468,
        "command_and_miss": 0.2143,
        "regression_edge": -2.0,
        "xwoba_edge": 1.2571,
        "barrel_edge": 0.8,
        "hard_hit_edge": 1.1143,
        "whiff_edge": -0.1286,
        "bb_edge": 1.2,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "663158",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.2745,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9767,
      "strikeout_factor": 0.9985,
      "walk_factor": 0.9568,
      "homer_factor": 0.9342,
      "woba_minus_xwoba": -0.076,
      "regression_flag": "negative_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "663158",
        "espn_id": 4148749,
        "player_name": "Robert Suarez",
        "team": "ATL",
        "role": "pitcher",
        "espn_rank": 45,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 45,
          "gp_value": 30.0,
          "gp_rank": 64,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 0.5869,
          "era_rank": null,
          "w_value": 4.0,
          "w_rank": 65,
          "l_value": 0.0,
          "l_rank": 430,
          "sv_value": 4.0,
          "sv_rank": 30,
          "hld_value": 11.0,
          "hld_rank": 12,
          "ip_value": 30.2,
          "ip_rank": 241,
          "h_value": 19.0,
          "h_rank": 352,
          "er_value": 2.0,
          "er_rank": 584,
          "hr_value": 1.0,
          "hr_rank": 453,
          "bb_value": 5.0,
          "bb_rank": 474,
          "k_value": 26.0,
          "k_rank": 293,
          "k_per_9_value": 7.6304345,
          "k_per_9_rank": 32,
          "whip_value": 0.7826,
          "whip_rank": null,
          "war_value": 1.55,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9895,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9895,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9806,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9704,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 0.9993,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.1,
    "ER": 1,
    "H": 6,
    "BB": 0,
    "SO": 7,
    "HR": 1,
    "ERA": 0.870967741935484,
    "WHIP": 0.5806451612903226,
    "K9": 6.096774193548388,
    "HR9": 0.870967741935484,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "663158",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.09,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5491,
    "prior_weight": 0.4509
  },
  "role": "pitcher",
  "player_id": "663158",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 30,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.1,
        "ER": 0.0,
        "R": 0.0,
        "H": 3.0,
        "BB": 0.0,
        "SO": 4.0,
        "HR": 0.0,
        "BF": 18.0,
        "Pitches": 62.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.6,
        "BB": 0.0,
        "SO": 0.8,
        "HR": 0.0,
        "BF": 3.6,
        "Pitches": 12.4
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 0.5625,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.5625,
        "BB_per_IP": 0.0,
        "SO_per_IP": 0.75,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.1,
        "ER": 1.0,
        "R": 1.0,
        "H": 6.0,
        "BB": 0.0,
        "SO": 7.0,
        "HR": 1.0,
        "BF": 36.0,
        "Pitches": 123.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.1,
        "R": 0.1,
        "H": 0.6,
        "BB": 0.0,
        "SO": 0.7,
        "HR": 0.1,
        "BF": 3.6,
        "Pitches": 12.3
      },
      "rates": {
        "ERA": 0.871,
        "WHIP": 0.5806,
        "ER_per_IP": 0.09677,
        "H_per_IP": 0.58065,
        "BB_per_IP": 0.0,
        "SO_per_IP": 0.67742,
        "HR_per_IP": 0.09677
      }
    },
    "season": {
      "games": 30,
      "totals": {
        "IP": 30.2,
        "ER": 2.0,
        "R": 2.0,
        "H": 19.0,
        "BB": 5.0,
        "SO": 26.0,
        "HR": 1.0,
        "BF": 114.0,
        "Pitches": 438.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0667,
        "R": 0.0667,
        "H": 0.6333,
        "BB": 0.1667,
        "SO": 0.8667,
        "HR": 0.0333,
        "BF": 3.8,
        "Pitches": 14.6
      },
      "rates": {
        "ERA": 0.587,
        "WHIP": 0.7826,
        "ER_per_IP": 0.06522,
        "H_per_IP": 0.61957,
        "BB_per_IP": 0.16304,
        "SO_per_IP": 0.84783,
        "HR_per_IP": 0.03261
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.252,
    "predicted_H": 0.758,
    "predicted_BB": 0.182,
    "predicted_SO": 0.831,
    "predicted_HR": 0.088,
    "predicted_ERA": 2.2646,
    "predicted_WHIP": 0.9395
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5405,
  "form_weight": 0.4595,
  "form_reliability": 0.5491,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.09,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5491,
    "prior_weight": 0.4509
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.252,
      "final": 0.1158,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.758,
      "final": 0.8888,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.182,
      "final": 0.0836,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 0.831,
      "final": 0.9223,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.088,
      "final": 0.0404,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 2.2646,
      "final": 2.2646,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 0.9395,
      "final": 0.9395,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherDidier Fuentes
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.3423
ESPN Rank103
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP0.1000
Pre ER1
Pre H1
Pre BB0
Pre SO1
Season ERA2.2500
Season WHIP1.0357
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "ATL",
    "games": 81,
    "wins": 51,
    "losses": 30,
    "win_pct": 0.6296,
    "runs_scored": 396.0,
    "runs_allowed": 288.0,
    "run_differential": 108.0,
    "run_differential_per_game": 1.3333,
    "avg_runs_scored": 4.8889,
    "avg_runs_allowed": 3.5556,
    "offense_index": 1.0822,
    "defense_index": 1.2706,
    "current_streak": "L4",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 2.7,
      "avg_runs_allowed": 4.7,
      "run_differential": -20.0
    },
    "available": true,
    "quality_score": 0.1675
  },
  "opponent": {
    "team": "SF",
    "games": 84,
    "wins": 37,
    "losses": 47,
    "win_pct": 0.4405,
    "runs_scored": 371.0,
    "runs_allowed": 398.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3214,
    "avg_runs_scored": 4.4167,
    "avg_runs_allowed": 4.7381,
    "offense_index": 0.9776,
    "defense_index": 0.9535,
    "current_streak": "W4",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.7,
      "avg_runs_allowed": 4.2,
      "run_differential": 5.0
    },
    "available": true,
    "quality_score": -0.0547
  },
  "edges": {
    "quality_edge": 0.2222,
    "offense_edge": 0.0822,
    "opponent_offense_edge": -0.0224,
    "defense_strength": 0.2706,
    "opponent_defense_weakness": 0.0465,
    "recent_win_pct_edge": -0.4
  },
  "player_factors": {
    "ip": 1.0179,
    "run_prevention": 0.9582,
    "strikeout": 1.0085
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "800311",
    "profile": {
      "available": true,
      "pitcher_id": "800311",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 84.0,
        "k_percent": 29.2,
        "bb_percent": 8.0,
        "woba": 0.25,
        "xwoba": 0.263,
        "sweet_spot_percent": 26.1,
        "barrel_batted_rate": 4.4,
        "hard_hit_percent": 31.9,
        "avg_best_speed": 78.7946,
        "avg_hyper_speed": 93.0663,
        "whiff_percent": 28.0,
        "swing_percent": 49.6
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 1.1436,
        "command_and_miss": 0.6057,
        "regression_edge": -0.3714,
        "xwoba_edge": 1.4857,
        "barrel_edge": 0.6444,
        "hard_hit_edge": 0.9143,
        "whiff_edge": 0.3286,
        "bb_edge": 0.3,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "800311",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.3423,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9709,
      "strikeout_factor": 1.0231,
      "walk_factor": 0.9892,
      "homer_factor": 0.9403,
      "woba_minus_xwoba": -0.013,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "800311",
        "espn_id": 5291189,
        "player_name": "Didier Fuentes",
        "team": "ATL",
        "role": "pitcher",
        "espn_rank": 103,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 103,
          "gp_value": 20.0,
          "gp_rank": 182,
          "gs_value": 1.0,
          "gs_rank": 240,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.25,
          "era_rank": null,
          "w_value": 4.0,
          "w_rank": 65,
          "l_value": 0.0,
          "l_rank": 430,
          "sv_value": 1.0,
          "sv_rank": 86,
          "hld_value": 5.0,
          "hld_rank": 87,
          "ip_value": 28.0,
          "ip_rank": 281,
          "h_value": 20.0,
          "h_rank": 330,
          "er_value": 7.0,
          "er_rank": 431,
          "hr_value": 1.0,
          "hr_rank": 453,
          "bb_value": 9.0,
          "bb_rank": 332,
          "k_value": 33.0,
          "k_rank": 209,
          "k_per_9_value": 10.607142,
          "k_per_9_rank": 20,
          "whip_value": 1.0357,
          "whip_rank": null,
          "war_value": 0.92,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9869,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9869,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9951,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9731,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0104,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.2,
    "ER": 1,
    "H": 9,
    "BB": 2,
    "SO": 11,
    "HR": 0,
    "ERA": 0.9310344827586208,
    "WHIP": 1.1379310344827587,
    "K9": 10.241379310344827,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "800311",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.56,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5265,
    "prior_weight": 0.4735
  },
  "role": "pitcher",
  "player_id": "800311",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 20,
  "reference_playing_time": 0.333,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.1,
        "ER": 0.0,
        "R": 0.0,
        "H": 4.0,
        "BB": 0.0,
        "SO": 6.0,
        "HR": 0.0,
        "BF": 19.0,
        "Pitches": 73.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.8,
        "BB": 0.0,
        "SO": 1.2,
        "HR": 0.0,
        "BF": 3.8,
        "Pitches": 14.6
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 0.75,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.75,
        "BB_per_IP": 0.0,
        "SO_per_IP": 1.125,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.2,
        "ER": 1.0,
        "R": 1.0,
        "H": 9.0,
        "BB": 2.0,
        "SO": 11.0,
        "HR": 0.0,
        "BF": 38.0,
        "Pitches": 174.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.1,
        "R": 0.1,
        "H": 0.9,
        "BB": 0.2,
        "SO": 1.1,
        "HR": 0.0,
        "BF": 3.8,
        "Pitches": 17.4
      },
      "rates": {
        "ERA": 0.931,
        "WHIP": 1.1379,
        "ER_per_IP": 0.10345,
        "H_per_IP": 0.93103,
        "BB_per_IP": 0.2069,
        "SO_per_IP": 1.13793,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 20,
      "totals": {
        "IP": 28.0,
        "ER": 7.0,
        "R": 7.0,
        "H": 20.0,
        "BB": 9.0,
        "SO": 33.0,
        "HR": 1.0,
        "BF": 113.0,
        "Pitches": 482.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.35,
        "R": 0.35,
        "H": 1.0,
        "BB": 0.45,
        "SO": 1.65,
        "HR": 0.05,
        "BF": 5.65,
        "Pitches": 24.1
      },
      "rates": {
        "ERA": 2.25,
        "WHIP": 1.0357,
        "ER_per_IP": 0.25,
        "H_per_IP": 0.71429,
        "BB_per_IP": 0.32143,
        "SO_per_IP": 1.17857,
        "HR_per_IP": 0.03571
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 0.2,
    "predicted_ER": 0.203,
    "predicted_H": 0.637,
    "predicted_BB": 0.175,
    "predicted_SO": 0.751,
    "predicted_HR": 0.052,
    "predicted_ERA": 2.5431,
    "predicted_WHIP": 1.1296
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5501,
  "form_weight": 0.4499,
  "form_reliability": 0.5265,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.56,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5265,
    "prior_weight": 0.4735
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 0.1,
      "form": 0.2,
      "final": 0.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.203,
      "final": 0.0913,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.637,
      "final": 0.8367,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.175,
      "final": 0.0787,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 0.751,
      "final": 0.888,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.052,
      "final": 0.0234,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 2.5431,
      "final": 2.5431,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1296,
      "final": 1.1296,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Ozzie Albies (645277) · BATTER · DH · Team ATL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 261
All-history rows before 20260618: 261
System season_avg: 0.2770
Data season_avg (2026 season-to-date): 0.2781
Diff (system - data): -0.0011
System opponent_avg: 0.1380

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1760.0000.000Hitting_2B0.1760.000-0.1760.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.1104.0004.000Hitting_AB3.8855.0000.115-1.000
predicted_AVG0.2390.0000.250Hitting_AVG0.2780.400-0.278-0.400
predicted_BB0.2970.0000.000Hitting_BB0.3300.000-0.3300.000
predicted_CS-0.0000.000BaseRunning_CS0.0540.000-0.0540.000
predicted_H0.9800.0001.000Hitting_H1.0802.000-1.080-2.000
predicted_HR0.1000.0000.000Hitting_HR0.1530.000-0.1530.000
predicted_OBP0.2990.0000.250Hitting_OBP0.3360.400-0.336-0.400
predicted_R0.6220.0001.000Hitting_R0.6511.000-0.651-1.000
predicted_RBI0.4200.0000.000Hitting_RBI0.5290.000-0.5290.000
predicted_SLG0.3750.0000.250Hitting_SLG0.4420.400-0.442-0.400
predicted_SO0.5140.0000.000Hitting_SO0.5401.000-0.540-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics1
Deboosted Metrics10
Better Metrics2
Worse Metrics9
Biggest Boostpredicted_AVG: 0.2390 -> 0.2470 (boost 0.0080, better)
Biggest Deboostpredicted_H: 0.9800 -> 0.0000 (deboost -0.9800, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend31212predicted_AVG: 0.2390 -> 0.2456 (boost 0.0066, better)predicted_AB: 4.1100 -> 3.9525 (deboost -0.1575, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_SLG: 0.3695 -> 0.3613 (deboost -0.0082, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling61506predicted_SO: 0.5186 -> 1.0000 (boost 0.4814, worse)predicted_RBI: 0.4045 -> 0.0000 (deboost -0.4045, worse)AB rounded to 4 (raw=4.11), rates preserved: AVG=0.238 HR/AB=0.023
5bvp_blend10110-predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.000)
6consistency_constraints11010predicted_R: 0.5835 -> 1.0000 (boost 0.4165, better)-Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context20202-predicted_SLG: 0.3613 -> 0.2500 (deboost -0.1113, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference20202-predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final22020predicted_SLG: 0.2500 -> 0.3613 (boost 0.1113, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "645277",
  "player_name": "Ozzie Albies",
  "position": "DH",
  "team": "ATL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.176,
        "predicted_3B": 0.0,
        "predicted_AB": 4.11,
        "predicted_AVG": 0.239,
        "predicted_BB": 0.297,
        "predicted_H": 0.98,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.299,
        "predicted_R": 0.622,
        "predicted_RBI": 0.42,
        "predicted_SLG": 0.375,
        "predicted_SO": 0.514
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1641,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.9525,
        "predicted_AVG": 0.2456,
        "predicted_BB": 0.2575,
        "predicted_H": 0.9677,
        "predicted_HBP": 0.051,
        "predicted_HR": 0.0932,
        "predicted_OBP": 0.2966,
        "predicted_R": 0.574,
        "predicted_RBI": 0.3979,
        "predicted_SLG": 0.3695,
        "predicted_SO": 0.5238
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.176,
          "after": 0.1641,
          "delta": -0.0119,
          "percent_delta": -0.0676,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.11,
          "after": 3.9525,
          "delta": -0.1575,
          "percent_delta": -0.0383,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.239,
          "after": 0.2456,
          "delta": 0.0066,
          "percent_delta": 0.0276,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.297,
          "after": 0.2575,
          "delta": -0.0395,
          "percent_delta": -0.133,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.98,
          "after": 0.9677,
          "delta": -0.0123,
          "percent_delta": -0.0126,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.0932,
          "delta": -0.0068,
          "percent_delta": -0.068,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.299,
          "after": 0.2966,
          "delta": -0.0024,
          "percent_delta": -0.008,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.622,
          "after": 0.574,
          "delta": -0.048,
          "percent_delta": -0.0772,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.42,
          "after": 0.3979,
          "delta": -0.0221,
          "percent_delta": -0.0526,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.375,
          "after": 0.3695,
          "delta": -0.0055,
          "percent_delta": -0.0147,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.514,
          "after": 0.5238,
          "delta": 0.0098,
          "percent_delta": 0.0191,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.239,
          "after": 0.2456,
          "delta": 0.0066,
          "percent_delta": 0.0276,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.11,
          "after": 3.9525,
          "delta": -0.1575,
          "percent_delta": -0.0383,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 74
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1641,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.9525,
        "predicted_AVG": 0.247,
        "predicted_BB": 0.2601,
        "predicted_H": 0.9762,
        "predicted_HBP": 0.051,
        "predicted_HR": 0.0956,
        "predicted_OBP": 0.2935,
        "predicted_R": 0.5835,
        "predicted_RBI": 0.4045,
        "predicted_SLG": 0.3613,
        "predicted_SO": 0.5186
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1641,
          "after": 0.1641,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9525,
          "after": 3.9525,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2456,
          "after": 0.247,
          "delta": 0.0014,
          "percent_delta": 0.0057,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2575,
          "after": 0.2601,
          "delta": 0.0026,
          "percent_delta": 0.0101,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9677,
          "after": 0.9762,
          "delta": 0.0085,
          "percent_delta": 0.0088,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.051,
          "after": 0.051,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0932,
          "after": 0.0956,
          "delta": 0.0024,
          "percent_delta": 0.0258,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2966,
          "after": 0.2935,
          "delta": -0.0031,
          "percent_delta": -0.0105,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.574,
          "after": 0.5835,
          "delta": 0.0095,
          "percent_delta": 0.0166,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3979,
          "after": 0.4045,
          "delta": 0.0066,
          "percent_delta": 0.0166,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3695,
          "after": 0.3613,
          "delta": -0.0082,
          "percent_delta": -0.0222,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5238,
          "after": 0.5186,
          "delta": -0.0052,
          "percent_delta": -0.0099,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3695,
          "after": 0.3613,
          "delta": -0.0082,
          "percent_delta": -0.0222,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.11), rates preserved: AVG=0.238 HR/AB=0.023",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1641,
          "after": 0.0,
          "delta": -0.1641,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9525,
          "after": 4.0,
          "delta": 0.0475,
          "percent_delta": 0.012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2601,
          "after": 0.0,
          "delta": -0.2601,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9762,
          "after": 1.0,
          "delta": 0.0238,
          "percent_delta": 0.0244,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.051,
          "after": 0.0,
          "delta": -0.051,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0956,
          "after": 0.0,
          "delta": -0.0956,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4045,
          "after": 0.0,
          "delta": -0.4045,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5186,
          "after": 1.0,
          "delta": 0.4814,
          "percent_delta": 0.9283,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 1,
        "deboosted_metrics": 5,
        "better_metrics": 0,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.5186,
          "after": 1.0,
          "delta": 0.4814,
          "percent_delta": 0.9283,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4045,
          "after": 0.0,
          "delta": -0.4045,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.000)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {
        "model_expectation": 0.9429,
        "bvp": 0.0571
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5835,
          "after": 1.0,
          "delta": 0.4165,
          "percent_delta": 0.7138,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5835,
          "after": 1.0,
          "delta": 0.4165,
          "percent_delta": 0.7138,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.247,
          "after": 0.25,
          "delta": 0.003,
          "percent_delta": 0.0121,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2935,
          "after": 0.25,
          "delta": -0.0435,
          "percent_delta": -0.1482,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3613,
          "after": 0.25,
          "delta": -0.1113,
          "percent_delta": -0.3081,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3613,
          "after": 0.25,
          "delta": -0.1113,
          "percent_delta": -0.3081,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.247,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2935,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3613,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.247,
          "delta": -0.003,
          "percent_delta": -0.0121,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2935,
          "delta": 0.0435,
          "percent_delta": 0.1739,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3613,
          "delta": 0.1113,
          "percent_delta": 0.445,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3613,
          "delta": 0.1113,
          "percent_delta": 0.445,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.176,
        "after": 0.0,
        "delta": -0.176,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.11,
        "after": 4.0,
        "delta": -0.11,
        "percent_delta": -0.0268,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.239,
        "after": 0.247,
        "delta": 0.008,
        "percent_delta": 0.0335,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.297,
        "after": 0.0,
        "delta": -0.297,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.98,
        "after": 0.0,
        "delta": -0.98,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.299,
        "after": 0.2935,
        "delta": -0.0055,
        "percent_delta": -0.0184,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.622,
        "after": 0.0,
        "delta": -0.622,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.42,
        "after": 0.0,
        "delta": -0.42,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.375,
        "after": 0.3613,
        "delta": -0.0137,
        "percent_delta": -0.0365,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.514,
        "after": 0.0,
        "delta": -0.514,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 1,
      "deboosted_metrics": 10,
      "better_metrics": 2,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_AVG",
        "before": 0.239,
        "after": 0.247,
        "delta": 0.008,
        "percent_delta": 0.0335,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.98,
        "after": 0.0,
        "delta": -0.98,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.176-
predicted_3B0.000-
predicted_AB4.110-
predicted_AVG0.239-
predicted_BB0.297-
predicted_H0.980-
predicted_HR0.100-
predicted_OBP0.299-
predicted_R0.622-
predicted_RBI0.420-
predicted_SLG0.375-
predicted_SO0.514-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.164-0.012
predicted_3B0.0000.000
predicted_AB3.953-0.158
predicted_AVG0.2460.007
predicted_BB0.258-0.039
predicted_H0.968-0.012
predicted_HBP0.051-
predicted_HR0.093-0.007
predicted_OBP0.297-0.002
predicted_R0.574-0.048
predicted_RBI0.398-0.022
predicted_SLG0.369-0.006
predicted_SO0.5240.010
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1640.000
predicted_3B0.0000.000
predicted_AB3.9530.000
predicted_AVG0.2470.001
predicted_BB0.2600.003
predicted_H0.9760.008
predicted_HBP0.0510.000
predicted_HR0.0960.002
predicted_OBP0.293-0.003
predicted_R0.5840.010
predicted_RBI0.4050.007
predicted_SLG0.361-0.008
predicted_SO0.519-0.005
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.11), rates preserved: AVG=0.238 HR/AB=0.023

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.000)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO0.000-1.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO0.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.164
predicted_3B0.000-0.000
predicted_AB4.0000.047
predicted_AVG0.2500.003
predicted_BB0.000-0.260
predicted_H1.0000.024
predicted_HR0.000-0.096
predicted_OBP0.250-0.043
predicted_R1.0000.416
predicted_RBI0.000-0.405
predicted_SLG0.250-0.111
predicted_SO0.000-0.519
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 74
Reference playing time: 4.110
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0003.0000.0000.0000.0000.0001.0000.0002.0000.16670.16670.16670.16670.00000.00000.00000.1111
last_100.2010-36.00010.0002.0000.0000.0003.0005.0001.0006.0000.27780.30000.33330.27780.00000.08330.02780.1667
season0.6074-282.00078.00013.0000.00010.00037.00046.00022.00038.0000.27660.33020.42910.27660.03550.13120.07800.1348
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1480
predicted_3B0.0010
predicted_AB3.7390
predicted_AVG0.2545
predicted_BB0.2040
predicted_H0.9510
predicted_HBP0.0510
predicted_HR0.0840
predicted_OBP0.2934
predicted_R0.5090
predicted_RBI0.3680
predicted_SLG0.3620
predicted_SO0.5370
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.17600.14800.1641model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.11003.73903.9525model_form_blend
predicted_AVG0.23900.25450.2456model_form_blend
predicted_BB0.29700.20400.2575model_form_blend
predicted_H0.98000.95100.9677model_form_blend
predicted_HBP-0.05100.0510form_only
predicted_HR0.10000.08400.0932model_form_blend
predicted_OBP0.29900.29340.2966model_form_blend
predicted_R0.62200.50900.5740model_form_blend
predicted_RBI0.42000.36800.3979model_form_blend
predicted_SLG0.37500.36200.3695model_form_blend
predicted_SO0.51400.53700.5238model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date261
Season rows before report date261
Report year2026
Profile rows used74
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.277

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.4
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB2
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_SF@ATL_2
game_typefull
mlbID645277
playerID645277
playerNameOzzie Albies
pos2B
startedTrue
startingPosition2B
teamATL
teamID2
game_date2026-06-17
sl_k_percent12.1
sl_bb_percent7.0
sl_woba0.333
sl_xwoba0.31
sl_xba0.259
sl_xslg0.389
sl_sweet_spot_percent34.4
sl_barrel_batted_rate4.5
sl_hard_hit_percent28.8
sl_exit_velocity_avg87.1
sl_launch_angle_avg16.6
sl_whiff_percent20.1
sl_swing_percent54.7
Ha-Seong Kim (673490) · BATTER · C · Team ATL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 56
All-history rows before 20260618: 56
System season_avg: 0.0850
Data season_avg (2026 season-to-date): 0.0968
Diff (system - data): -0.0118
System opponent_avg: 0.0850

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0000.0000.000Hitting_2B0.0000.0000.0000.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.2782.0003.000Hitting_AB3.3210.000-1.3212.000
predicted_AVG0.2010.0000.333Hitting_AVG0.097--0.097-
predicted_BB0.3892.0000.000Hitting_BB0.3930.0001.6072.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.6200.0001.000Hitting_H0.3210.000-0.3210.000
predicted_HR0.0700.0000.000Hitting_HR0.0000.0000.0000.000
predicted_OBP0.2470.5000.333Hitting_OBP0.192-0.308-
predicted_R0.2220.0000.000Hitting_R0.3210.000-0.3210.000
predicted_RBI0.3200.0000.000Hitting_RBI0.1960.000-0.1960.000
predicted_SLG0.2450.0000.333Hitting_SLG0.097--0.097-
predicted_SO0.8890.0001.000Hitting_SO0.9640.000-0.9640.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics2
Deboosted Metrics8
Better Metrics3
Worse Metrics7
Biggest Boostpredicted_BB: 0.3890 -> 2.0000 (boost 1.6110, better)
Biggest Deboostpredicted_AB: 3.2780 -> 2.0000 (deboost -1.2780, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend40404-predicted_H: 0.6200 -> 0.5580 (deboost -0.0620, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot32121predicted_OBP: 0.2365 -> 0.2550 (boost 0.0185, better)predicted_AVG: 0.1760 -> 0.1695 (deboost -0.0065, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62415predicted_H: 0.5629 -> 1.0000 (boost 0.4371, better)predicted_BB: 0.3813 -> 0.0000 (deboost -0.3813, worse)AB rounded to 3 (raw=3.32), rates preserved: AVG=0.169 HR/AB=0.018
5consistency_constraints10101-predicted_R: 0.2348 -> 0.0000 (deboost -0.2348, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.1695 -> 0.3330 (boost 0.1635, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference41322predicted_BB: 0.0000 -> 2.0000 (boost 2.0000, better)predicted_AB: 3.0000 -> 2.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.1695 (deboost -0.1635, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "673490",
  "player_name": "Ha-Seong Kim",
  "position": "C",
  "team": "ATL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.278,
        "predicted_AVG": 0.201,
        "predicted_BB": 0.389,
        "predicted_H": 0.62,
        "predicted_HR": 0.07,
        "predicted_OBP": 0.247,
        "predicted_R": 0.222,
        "predicted_RBI": 0.32,
        "predicted_SLG": 0.245,
        "predicted_SO": 0.889
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0186,
        "predicted_3B": 0.0014,
        "predicted_AB": 3.3214,
        "predicted_AVG": 0.176,
        "predicted_BB": 0.3775,
        "predicted_H": 0.558,
        "predicted_HBP": 0.01,
        "predicted_HR": 0.0578,
        "predicted_OBP": 0.2365,
        "predicted_R": 0.231,
        "predicted_RBI": 0.3031,
        "predicted_SLG": 0.2221,
        "predicted_SO": 0.8653
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0186,
          "delta": 0.0186,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0014,
          "delta": 0.0014,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.278,
          "after": 3.3214,
          "delta": 0.0434,
          "percent_delta": 0.0132,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.201,
          "after": 0.176,
          "delta": -0.025,
          "percent_delta": -0.1244,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.389,
          "after": 0.3775,
          "delta": -0.0115,
          "percent_delta": -0.0296,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.62,
          "after": 0.558,
          "delta": -0.062,
          "percent_delta": -0.1,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.07,
          "after": 0.0578,
          "delta": -0.0122,
          "percent_delta": -0.1743,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.247,
          "after": 0.2365,
          "delta": -0.0105,
          "percent_delta": -0.0425,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.222,
          "after": 0.231,
          "delta": 0.009,
          "percent_delta": 0.0405,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.32,
          "after": 0.3031,
          "delta": -0.0169,
          "percent_delta": -0.0528,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.245,
          "after": 0.2221,
          "delta": -0.0229,
          "percent_delta": -0.0935,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.889,
          "after": 0.8653,
          "delta": -0.0237,
          "percent_delta": -0.0267,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 0,
        "deboosted_metrics": 4,
        "better_metrics": 0,
        "worse_metrics": 4,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 0.62,
          "after": 0.558,
          "delta": -0.062,
          "percent_delta": -0.1,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 18
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0186,
        "predicted_3B": 0.0014,
        "predicted_AB": 3.3214,
        "predicted_AVG": 0.1695,
        "predicted_BB": 0.3813,
        "predicted_H": 0.5629,
        "predicted_HBP": 0.01,
        "predicted_HR": 0.0593,
        "predicted_OBP": 0.255,
        "predicted_R": 0.2348,
        "predicted_RBI": 0.3081,
        "predicted_SLG": 0.2295,
        "predicted_SO": 0.8566
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0186,
          "after": 0.0186,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0014,
          "after": 0.0014,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.3214,
          "after": 3.3214,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.176,
          "after": 0.1695,
          "delta": -0.0065,
          "percent_delta": -0.0369,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3775,
          "after": 0.3813,
          "delta": 0.0038,
          "percent_delta": 0.0101,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.558,
          "after": 0.5629,
          "delta": 0.0049,
          "percent_delta": 0.0088,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.01,
          "after": 0.01,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0578,
          "after": 0.0593,
          "delta": 0.0015,
          "percent_delta": 0.026,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2365,
          "after": 0.255,
          "delta": 0.0185,
          "percent_delta": 0.0782,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.231,
          "after": 0.2348,
          "delta": 0.0038,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3031,
          "after": 0.3081,
          "delta": 0.005,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2221,
          "after": 0.2295,
          "delta": 0.0074,
          "percent_delta": 0.0333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8653,
          "after": 0.8566,
          "delta": -0.0087,
          "percent_delta": -0.0101,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.2365,
          "after": 0.255,
          "delta": 0.0185,
          "percent_delta": 0.0782,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.176,
          "after": 0.1695,
          "delta": -0.0065,
          "percent_delta": -0.0369,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.32), rates preserved: AVG=0.169 HR/AB=0.018",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0186,
          "after": 0.0,
          "delta": -0.0186,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0014,
          "after": 0.0,
          "delta": -0.0014,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.3214,
          "after": 3.0,
          "delta": -0.3214,
          "percent_delta": -0.0968,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3813,
          "after": 0.0,
          "delta": -0.3813,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.5629,
          "after": 1.0,
          "delta": 0.4371,
          "percent_delta": 0.7765,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.01,
          "after": 0.0,
          "delta": -0.01,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0593,
          "after": 0.0,
          "delta": -0.0593,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3081,
          "after": 0.0,
          "delta": -0.3081,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8566,
          "after": 1.0,
          "delta": 0.1434,
          "percent_delta": 0.1674,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.5629,
          "after": 1.0,
          "delta": 0.4371,
          "percent_delta": 0.7765,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3813,
          "after": 0.0,
          "delta": -0.3813,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.2348,
          "after": 0.0,
          "delta": -0.2348,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.2348,
          "after": 0.0,
          "delta": -0.2348,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1695,
          "after": 0.333,
          "delta": 0.1635,
          "percent_delta": 0.9646,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.255,
          "after": 0.333,
          "delta": 0.078,
          "percent_delta": 0.3059,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2295,
          "after": 0.333,
          "delta": 0.1035,
          "percent_delta": 0.451,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1695,
          "after": 0.333,
          "delta": 0.1635,
          "percent_delta": 0.9646,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 2.0,
        "predicted_BB": 2.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 2.0,
          "delta": -1.0,
          "percent_delta": -0.3333,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 1,
        "deboosted_metrics": 3,
        "better_metrics": 2,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 2.0,
          "delta": -1.0,
          "percent_delta": -0.3333,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 2.0,
        "predicted_AVG": 0.1695,
        "predicted_BB": 2.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.255,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.2295,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1695,
          "delta": -0.1635,
          "percent_delta": -0.4911,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.255,
          "delta": -0.078,
          "percent_delta": -0.2342,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.2295,
          "delta": -0.1035,
          "percent_delta": -0.3109,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1695,
          "delta": -0.1635,
          "percent_delta": -0.4911,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.278,
        "after": 2.0,
        "delta": -1.278,
        "percent_delta": -0.3899,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.201,
        "after": 0.1695,
        "delta": -0.0315,
        "percent_delta": -0.1567,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.389,
        "after": 2.0,
        "delta": 1.611,
        "percent_delta": 4.1414,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.62,
        "after": 0.0,
        "delta": -0.62,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.07,
        "after": 0.0,
        "delta": -0.07,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.247,
        "after": 0.255,
        "delta": 0.008,
        "percent_delta": 0.0324,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.222,
        "after": 0.0,
        "delta": -0.222,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.32,
        "after": 0.0,
        "delta": -0.32,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.245,
        "after": 0.2295,
        "delta": -0.0155,
        "percent_delta": -0.0633,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.889,
        "after": 0.0,
        "delta": -0.889,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 2,
      "deboosted_metrics": 8,
      "better_metrics": 3,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.389,
        "after": 2.0,
        "delta": 1.611,
        "percent_delta": 4.1414,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 3.278,
        "after": 2.0,
        "delta": -1.278,
        "percent_delta": -0.3899,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.000-
predicted_3B0.000-
predicted_AB3.278-
predicted_AVG0.201-
predicted_BB0.389-
predicted_H0.620-
predicted_HR0.070-
predicted_OBP0.247-
predicted_R0.222-
predicted_RBI0.320-
predicted_SLG0.245-
predicted_SO0.889-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.0190.019
predicted_3B0.0010.001
predicted_AB3.3210.043
predicted_AVG0.176-0.025
predicted_BB0.378-0.012
predicted_H0.558-0.062
predicted_HBP0.010-
predicted_HR0.058-0.012
predicted_OBP0.236-0.011
predicted_R0.2310.009
predicted_RBI0.303-0.017
predicted_SLG0.222-0.023
predicted_SO0.865-0.024
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0190.000
predicted_3B0.0010.000
predicted_AB3.3210.000
predicted_AVG0.170-0.006
predicted_BB0.3810.004
predicted_H0.5630.005
predicted_HBP0.0100.000
predicted_HR0.0590.002
predicted_OBP0.2550.019
predicted_R0.2350.004
predicted_RBI0.3080.005
predicted_SLG0.2300.007
predicted_SO0.857-0.009
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.32), rates preserved: AVG=0.169 HR/AB=0.018

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.019
predicted_3B0.000-0.001
predicted_AB3.000-0.321
predicted_AVG0.3330.164
predicted_BB0.000-0.381
predicted_H1.0000.437
predicted_HR0.000-0.059
predicted_OBP0.3330.078
predicted_R0.000-0.235
predicted_RBI0.000-0.308
predicted_SLG0.3330.104
predicted_SO1.0000.143
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB2.000-1.000
BB2.0002.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 18
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-14.0001.0000.0000.0000.0001.0000.0002.0002.0000.07140.18750.07140.07140.00000.07140.14290.1429
last_100.2010-33.0002.0000.0000.0000.0002.0001.0003.00010.0000.06060.13890.06060.06060.00000.06060.09090.3030
season0.6018-59.0005.0000.0000.0000.0003.0004.0007.00016.0000.08470.18180.08470.08480.00000.05080.11860.2712
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0520
predicted_3B0.0040
predicted_AB3.3990
predicted_AVG0.1314
predicted_BB0.3570
predicted_H0.4470
predicted_HBP0.0100
predicted_HR0.0360
predicted_OBP0.2178
predicted_R0.2470
predicted_RBI0.2730
predicted_SLG0.1811
predicted_SO0.8230
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.00000.05200.0186model_form_blend
predicted_3B0.00000.00400.0014model_form_blend
predicted_AB3.27803.39903.3214model_form_blend
predicted_AVG0.20100.13140.1760model_form_blend
predicted_BB0.38900.35700.3775model_form_blend
predicted_H0.62000.44700.5580model_form_blend
predicted_HBP-0.01000.0100form_only
predicted_HR0.07000.03600.0578model_form_blend
predicted_OBP0.24700.21780.2365model_form_blend
predicted_R0.22200.24700.2310model_form_blend
predicted_RBI0.32000.27300.3031model_form_blend
predicted_SLG0.24500.18110.2221model_form_blend
predicted_SO0.88900.82300.8653model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date56
Season rows before report date56
Report year2026
Profile rows used18
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB2
H0
2B0
3B0
HR0
R0
RBI0
BB2
SO0
SF0
HBP0
season_avg0.085

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder7
Hitting_substitutionOrder2
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedSS
gameID20260617_SF@ATL_2
game_typeshort
mlbID673490
playerID673490
playerNameHa-Seong Kim
posSS
startedFalse
startingPositionSS
teamATL
teamID2
game_date2026-06-17
sl_k_percent24.2
sl_bb_percent10.6
sl_woba0.142
sl_xwoba0.213
sl_xba0.154
sl_xslg0.199
sl_sweet_spot_percent16.3
sl_barrel_batted_rate2.4
sl_hard_hit_percent20.9
sl_exit_velocity_avg84.6
sl_launch_angle_avg14.6
sl_whiff_percent19.3
sl_swing_percent43.6
Matt Olson (621566) · BATTER · 1B · Team ATL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 265
All-history rows before 20260618: 265
System season_avg: 0.2750
Data season_avg (2026 season-to-date): 0.2735
Diff (system - data): 0.0015
System opponent_avg: 0.4550

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2570.0000.000Hitting_2B0.3250.000-0.3250.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.0503.0004.000Hitting_AB3.8915.000-0.891-2.000
predicted_AVG0.2530.3330.250Hitting_AVG0.2740.6000.060-0.267
predicted_BB0.4191.0000.000Hitting_BB0.4910.0000.5091.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H1.0201.0001.000Hitting_H1.0643.000-0.064-2.000
predicted_HR0.2000.0000.000Hitting_HR0.2750.000-0.2750.000
predicted_OBP0.3390.5000.250Hitting_OBP0.3550.6000.145-0.100
predicted_R0.7031.0001.000Hitting_R0.7511.0000.2490.000
predicted_RBI0.5201.0001.000Hitting_RBI0.7770.0000.2231.000
predicted_SLG0.4730.3330.250Hitting_SLG0.5690.600-0.236-0.267
predicted_SO1.0001.0001.000Hitting_SO0.9920.0000.0081.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics8
Boosted Metrics5
Deboosted Metrics3
Better Metrics5
Worse Metrics3
Biggest Boostpredicted_BB: 0.4190 -> 1.0000 (boost 0.5810, better)
Biggest Deboostpredicted_AB: 4.0500 -> 3.0000 (deboost -1.0500, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend43131predicted_AVG: 0.2530 -> 0.2693 (boost 0.0163, better)predicted_AB: 4.0500 -> 3.9255 (deboost -0.1245, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_OBP: 0.3441 -> 0.3364 (deboost -0.0077, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62424predicted_RBI: 0.5126 -> 1.0000 (boost 0.4874, better)predicted_BB: 0.3906 -> 0.0000 (deboost -0.3906, worse)AB rounded to 4 (raw=4.05), rates preserved: AVG=0.262 HR/AB=0.052
5bvp_blend00000--Sample-size BvP blend (BvP AB=8.0, weight=0.084, BvP AVG=0.500)
6consistency_constraints11010predicted_R: 0.6735 -> 1.0000 (boost 0.3265, better)-Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context30303-predicted_SLG: 0.4848 -> 0.2500 (deboost -0.2348, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference21111predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final33030predicted_SLG: 0.2500 -> 0.4848 (boost 0.2348, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "621566",
  "player_name": "Matt Olson",
  "position": "1B",
  "team": "ATL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.257,
        "predicted_3B": 0.0,
        "predicted_AB": 4.05,
        "predicted_AVG": 0.253,
        "predicted_BB": 0.419,
        "predicted_H": 1.02,
        "predicted_HR": 0.2,
        "predicted_OBP": 0.339,
        "predicted_R": 0.703,
        "predicted_RBI": 0.52,
        "predicted_SLG": 0.473,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2124,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.9255,
        "predicted_AVG": 0.2693,
        "predicted_BB": 0.3867,
        "predicted_H": 1.0519,
        "predicted_HBP": 0.01,
        "predicted_HR": 0.2043,
        "predicted_OBP": 0.3441,
        "predicted_R": 0.6626,
        "predicted_RBI": 0.5043,
        "predicted_SLG": 0.4847,
        "predicted_SO": 0.9787
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.257,
          "after": 0.2124,
          "delta": -0.0446,
          "percent_delta": -0.1735,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.05,
          "after": 3.9255,
          "delta": -0.1245,
          "percent_delta": -0.0307,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.253,
          "after": 0.2693,
          "delta": 0.0163,
          "percent_delta": 0.0644,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.419,
          "after": 0.3867,
          "delta": -0.0323,
          "percent_delta": -0.0771,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.02,
          "after": 1.0519,
          "delta": 0.0319,
          "percent_delta": 0.0313,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2,
          "after": 0.2043,
          "delta": 0.0043,
          "percent_delta": 0.0215,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.339,
          "after": 0.3441,
          "delta": 0.0051,
          "percent_delta": 0.015,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.703,
          "after": 0.6626,
          "delta": -0.0404,
          "percent_delta": -0.0575,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.52,
          "after": 0.5043,
          "delta": -0.0157,
          "percent_delta": -0.0302,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.473,
          "after": 0.4847,
          "delta": 0.0117,
          "percent_delta": 0.0247,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.9787,
          "delta": -0.0213,
          "percent_delta": -0.0213,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.253,
          "after": 0.2693,
          "delta": 0.0163,
          "percent_delta": 0.0644,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.05,
          "after": 3.9255,
          "delta": -0.1245,
          "percent_delta": -0.0307,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 74
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2124,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.9255,
        "predicted_AVG": 0.2703,
        "predicted_BB": 0.3906,
        "predicted_H": 1.0612,
        "predicted_HBP": 0.01,
        "predicted_HR": 0.2095,
        "predicted_OBP": 0.3364,
        "predicted_R": 0.6735,
        "predicted_RBI": 0.5126,
        "predicted_SLG": 0.4848,
        "predicted_SO": 0.9689
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2124,
          "after": 0.2124,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9255,
          "after": 3.9255,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2693,
          "after": 0.2703,
          "delta": 0.001,
          "percent_delta": 0.0037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3867,
          "after": 0.3906,
          "delta": 0.0039,
          "percent_delta": 0.0101,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0519,
          "after": 1.0612,
          "delta": 0.0093,
          "percent_delta": 0.0088,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.01,
          "after": 0.01,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2043,
          "after": 0.2095,
          "delta": 0.0052,
          "percent_delta": 0.0255,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3441,
          "after": 0.3364,
          "delta": -0.0077,
          "percent_delta": -0.0224,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.6626,
          "after": 0.6735,
          "delta": 0.0109,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5043,
          "after": 0.5126,
          "delta": 0.0083,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4847,
          "after": 0.4848,
          "delta": 0.0001,
          "percent_delta": 0.0002,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.9787,
          "after": 0.9689,
          "delta": -0.0098,
          "percent_delta": -0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3441,
          "after": 0.3364,
          "delta": -0.0077,
          "percent_delta": -0.0224,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.05), rates preserved: AVG=0.262 HR/AB=0.052",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2124,
          "after": 0.0,
          "delta": -0.2124,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9255,
          "after": 4.0,
          "delta": 0.0745,
          "percent_delta": 0.019,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3906,
          "after": 0.0,
          "delta": -0.3906,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0612,
          "after": 1.0,
          "delta": -0.0612,
          "percent_delta": -0.0577,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.01,
          "after": 0.0,
          "delta": -0.01,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2095,
          "after": 0.0,
          "delta": -0.2095,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5126,
          "after": 1.0,
          "delta": 0.4874,
          "percent_delta": 0.9508,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9689,
          "after": 1.0,
          "delta": 0.0311,
          "percent_delta": 0.0321,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.5126,
          "after": 1.0,
          "delta": 0.4874,
          "percent_delta": 0.9508,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3906,
          "after": 0.0,
          "delta": -0.3906,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=8.0, weight=0.084, BvP AVG=0.500)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9158,
        "bvp": 0.0842
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.6735,
          "after": 1.0,
          "delta": 0.3265,
          "percent_delta": 0.4848,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.6735,
          "after": 1.0,
          "delta": 0.3265,
          "percent_delta": 0.4848,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2703,
          "after": 0.25,
          "delta": -0.0203,
          "percent_delta": -0.0751,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3364,
          "after": 0.25,
          "delta": -0.0864,
          "percent_delta": -0.2568,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4848,
          "after": 0.25,
          "delta": -0.2348,
          "percent_delta": -0.4843,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4848,
          "after": 0.25,
          "delta": -0.2348,
          "percent_delta": -0.4843,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2703,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3364,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4848,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2703,
          "delta": 0.0203,
          "percent_delta": 0.0813,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3364,
          "delta": 0.0864,
          "percent_delta": 0.3454,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4848,
          "delta": 0.2348,
          "percent_delta": 0.9391,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4848,
          "delta": 0.2348,
          "percent_delta": 0.9391,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.257,
        "after": 0.0,
        "delta": -0.257,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.05,
        "after": 3.0,
        "delta": -1.05,
        "percent_delta": -0.2593,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.253,
        "after": 0.2703,
        "delta": 0.0173,
        "percent_delta": 0.0684,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.419,
        "after": 1.0,
        "delta": 0.581,
        "percent_delta": 1.3866,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.02,
        "after": 1.0,
        "delta": -0.02,
        "percent_delta": -0.0196,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.2,
        "after": 0.0,
        "delta": -0.2,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.339,
        "after": 0.3364,
        "delta": -0.0026,
        "percent_delta": -0.0077,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.703,
        "after": 1.0,
        "delta": 0.297,
        "percent_delta": 0.4225,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.52,
        "after": 1.0,
        "delta": 0.48,
        "percent_delta": 0.9231,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.473,
        "after": 0.4848,
        "delta": 0.0118,
        "percent_delta": 0.0249,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 8,
      "boosted_metrics": 5,
      "deboosted_metrics": 3,
      "better_metrics": 5,
      "worse_metrics": 3,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.419,
        "after": 1.0,
        "delta": 0.581,
        "percent_delta": 1.3866,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 4.05,
        "after": 3.0,
        "delta": -1.05,
        "percent_delta": -0.2593,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.257-
predicted_3B0.000-
predicted_AB4.050-
predicted_AVG0.253-
predicted_BB0.419-
predicted_H1.020-
predicted_HR0.200-
predicted_OBP0.339-
predicted_R0.703-
predicted_RBI0.520-
predicted_SLG0.473-
predicted_SO1.000-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.212-0.045
predicted_3B0.0000.000
predicted_AB3.925-0.124
predicted_AVG0.2690.016
predicted_BB0.387-0.032
predicted_H1.0520.032
predicted_HBP0.010-
predicted_HR0.2040.004
predicted_OBP0.3440.005
predicted_R0.663-0.040
predicted_RBI0.504-0.016
predicted_SLG0.4850.012
predicted_SO0.979-0.021
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2120.000
predicted_3B0.0000.000
predicted_AB3.9250.000
predicted_AVG0.2700.001
predicted_BB0.3910.004
predicted_H1.0610.009
predicted_HBP0.0100.000
predicted_HR0.2090.005
predicted_OBP0.336-0.008
predicted_R0.6730.011
predicted_RBI0.5130.008
predicted_SLG0.4850.000
predicted_SO0.969-0.010
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.05), rates preserved: AVG=0.262 HR/AB=0.052

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=8.0, weight=0.084, BvP AVG=0.500)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI1.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.212
predicted_3B0.000-0.000
predicted_AB4.0000.075
predicted_AVG0.250-0.020
predicted_BB0.000-0.391
predicted_H1.000-0.061
predicted_HR0.000-0.209
predicted_OBP0.250-0.086
predicted_R1.0000.327
predicted_RBI1.0000.487
predicted_SLG0.250-0.235
predicted_SO1.0000.031
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0000.000
RBI1.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 74
Reference playing time: 4.050
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0006.0000.0000.0000.0000.0002.0001.0004.0000.35290.38890.35290.35290.00000.00000.05880.2353
last_100.2010-37.00011.0000.0000.0003.0004.0006.0003.00010.0000.29730.35000.54050.29730.08110.10810.08110.2703
season0.6074-287.00079.00019.0000.00020.00051.00052.00031.00074.0000.27530.34470.55050.27530.06970.17770.10800.2578
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1520
predicted_3B0.0010
predicted_AB3.7570
predicted_AVG0.2914
predicted_BB0.3430
predicted_H1.0950
predicted_HBP0.0100
predicted_HR0.2100
predicted_OBP0.3511
predicted_R0.6080
predicted_RBI0.4830
predicted_SLG0.5005
predicted_SO0.9500
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.25700.15200.2124model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.05003.75703.9255model_form_blend
predicted_AVG0.25300.29140.2693model_form_blend
predicted_BB0.41900.34300.3867model_form_blend
predicted_H1.02001.09501.0519model_form_blend
predicted_HBP-0.01000.0100form_only
predicted_HR0.20000.21000.2043model_form_blend
predicted_OBP0.33900.35110.3441model_form_blend
predicted_R0.70300.60800.6626model_form_blend
predicted_RBI0.52000.48300.5043model_form_blend
predicted_SLG0.47300.50050.4847model_form_blend
predicted_SO1.00000.95000.9787model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date265
Season rows before report date265
Report year2026
Profile rows used74
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B0
3B0
HR0
R1
RBI1
BB1
SO1
SF0
HBP0
season_avg0.275

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.6
Hitting_BB0
Hitting_GIDP0
Hitting_H3
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB3
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B-RF
gameID20260617_SF@ATL_2
game_typefull
mlbID621566
playerID621566
playerNameMatt Olson
pos1B
startedTrue
startingPosition1B
teamATL
teamID2
game_date2026-06-17
sl_k_percent22.7
sl_bb_percent9.7
sl_woba0.382
sl_xwoba0.37
sl_xba0.261
sl_xslg0.533
sl_sweet_spot_percent32.4
sl_barrel_batted_rate14.4
sl_hard_hit_percent52.3
sl_exit_velocity_avg93.5
sl_launch_angle_avg18.4
sl_whiff_percent25.0
sl_swing_percent46.0
Michael Harris II (671739) · BATTER · 2B · Team ATL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 215
All-history rows before 20260618: 215
System season_avg: 0.3090
Data season_avg (2026 season-to-date): 0.3007
Diff (system - data): 0.0083
System opponent_avg: 0.3240

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1321.0000.000Hitting_2B0.1260.0000.8741.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.0005.0004.000Hitting_AB3.8511.0001.1494.000
predicted_AVG0.2700.4000.250Hitting_AVG0.3011.0000.099-0.600
predicted_BB0.1620.0000.000Hitting_BB0.1350.000-0.1350.000
predicted_CS-0.0000.000BaseRunning_CS0.0050.000-0.0050.000
predicted_H1.0802.0001.000Hitting_H1.1581.0000.8421.000
predicted_HR0.1900.0000.000Hitting_HR0.2510.000-0.2510.000
predicted_OBP0.3440.4000.250Hitting_OBP0.3261.0000.074-0.600
predicted_R0.5291.0001.000Hitting_R0.5531.0000.4470.000
predicted_RBI0.5302.0001.000Hitting_RBI0.6560.0001.3442.000
predicted_SLG0.4830.6000.250Hitting_SLG0.5291.0000.071-0.400
predicted_SO0.7650.0001.000Hitting_SO0.7630.000-0.7630.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics10
Boosted Metrics6
Deboosted Metrics4
Better Metrics7
Worse Metrics3
Biggest Boostpredicted_RBI: 0.5300 -> 2.0000 (boost 1.4700, better)
Biggest Deboostpredicted_SO: 0.7650 -> 0.0000 (deboost -0.7650, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend65142predicted_R: 0.5290 -> 0.5873 (boost 0.0583, better)predicted_AB: 4.0000 -> 3.7650 (deboost -0.2350, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3501 -> 0.3239 (deboost -0.0262, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73425predicted_RBI: 0.5149 -> 1.0000 (boost 0.4851, better)predicted_HR: 0.1906 -> 0.0000 (deboost -0.1906, worse)AB rounded to 4 (raw=4.00), rates preserved: AVG=0.275 HR/AB=0.048
5bvp_blend00000--Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.333)
6consistency_constraints11010predicted_R: 0.5970 -> 1.0000 (boost 0.4030, better)-Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context30303-predicted_SLG: 0.4782 -> 0.2500 (deboost -0.2282, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference54150predicted_2B: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
9current_json_final33030predicted_SLG: 0.2500 -> 0.4782 (boost 0.2282, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "671739",
  "player_name": "Michael Harris II",
  "position": "2B",
  "team": "ATL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.132,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.27,
        "predicted_BB": 0.162,
        "predicted_H": 1.08,
        "predicted_HR": 0.19,
        "predicted_OBP": 0.344,
        "predicted_R": 0.529,
        "predicted_RBI": 0.53,
        "predicted_SLG": 0.483,
        "predicted_SO": 0.765
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1278,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.765,
        "predicted_AVG": 0.2915,
        "predicted_BB": 0.1746,
        "predicted_H": 1.0905,
        "predicted_HBP": 0.011,
        "predicted_HR": 0.1858,
        "predicted_OBP": 0.3501,
        "predicted_R": 0.5873,
        "predicted_RBI": 0.5065,
        "predicted_SLG": 0.4964,
        "predicted_SO": 0.8196
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.132,
          "after": 0.1278,
          "delta": -0.0042,
          "percent_delta": -0.0318,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.765,
          "delta": -0.235,
          "percent_delta": -0.0587,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.27,
          "after": 0.2915,
          "delta": 0.0215,
          "percent_delta": 0.0796,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.162,
          "after": 0.1746,
          "delta": 0.0126,
          "percent_delta": 0.0778,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.08,
          "after": 1.0905,
          "delta": 0.0105,
          "percent_delta": 0.0097,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.19,
          "after": 0.1858,
          "delta": -0.0042,
          "percent_delta": -0.0221,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.344,
          "after": 0.3501,
          "delta": 0.0061,
          "percent_delta": 0.0177,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.529,
          "after": 0.5873,
          "delta": 0.0583,
          "percent_delta": 0.1102,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.53,
          "after": 0.5065,
          "delta": -0.0235,
          "percent_delta": -0.0443,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.483,
          "after": 0.4964,
          "delta": 0.0134,
          "percent_delta": 0.0277,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.765,
          "after": 0.8196,
          "delta": 0.0546,
          "percent_delta": 0.0714,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 5,
        "deboosted_metrics": 1,
        "better_metrics": 4,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.529,
          "after": 0.5873,
          "delta": 0.0583,
          "percent_delta": 0.1102,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.765,
          "delta": -0.235,
          "percent_delta": -0.0587,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 68
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1278,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.765,
        "predicted_AVG": 0.2922,
        "predicted_BB": 0.1763,
        "predicted_H": 1.1001,
        "predicted_HBP": 0.011,
        "predicted_HR": 0.1906,
        "predicted_OBP": 0.3239,
        "predicted_R": 0.597,
        "predicted_RBI": 0.5149,
        "predicted_SLG": 0.4782,
        "predicted_SO": 0.8114
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1278,
          "after": 0.1278,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.765,
          "after": 3.765,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2915,
          "after": 0.2922,
          "delta": 0.0007,
          "percent_delta": 0.0024,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.1746,
          "after": 0.1763,
          "delta": 0.0017,
          "percent_delta": 0.0097,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0905,
          "after": 1.1001,
          "delta": 0.0096,
          "percent_delta": 0.0088,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.011,
          "after": 0.011,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1858,
          "after": 0.1906,
          "delta": 0.0048,
          "percent_delta": 0.0258,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3501,
          "after": 0.3239,
          "delta": -0.0262,
          "percent_delta": -0.0748,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5873,
          "after": 0.597,
          "delta": 0.0097,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5065,
          "after": 0.5149,
          "delta": 0.0084,
          "percent_delta": 0.0166,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4964,
          "after": 0.4782,
          "delta": -0.0182,
          "percent_delta": -0.0367,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8196,
          "after": 0.8114,
          "delta": -0.0082,
          "percent_delta": -0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3501,
          "after": 0.3239,
          "delta": -0.0262,
          "percent_delta": -0.0748,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.00), rates preserved: AVG=0.275 HR/AB=0.048",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1278,
          "after": 0.0,
          "delta": -0.1278,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.765,
          "after": 4.0,
          "delta": 0.235,
          "percent_delta": 0.0624,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1763,
          "after": 0.0,
          "delta": -0.1763,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.1001,
          "after": 1.0,
          "delta": -0.1001,
          "percent_delta": -0.091,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.011,
          "after": 0.0,
          "delta": -0.011,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1906,
          "after": 0.0,
          "delta": -0.1906,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5149,
          "after": 1.0,
          "delta": 0.4851,
          "percent_delta": 0.9421,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8114,
          "after": 1.0,
          "delta": 0.1886,
          "percent_delta": 0.2324,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.5149,
          "after": 1.0,
          "delta": 0.4851,
          "percent_delta": 0.9421,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_HR",
          "before": 0.1906,
          "after": 0.0,
          "delta": -0.1906,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.333)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9333,
        "bvp": 0.0667
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.597,
          "after": 1.0,
          "delta": 0.403,
          "percent_delta": 0.675,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.597,
          "after": 1.0,
          "delta": 0.403,
          "percent_delta": 0.675,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2922,
          "after": 0.25,
          "delta": -0.0422,
          "percent_delta": -0.1444,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3239,
          "after": 0.25,
          "delta": -0.0739,
          "percent_delta": -0.2282,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4782,
          "after": 0.25,
          "delta": -0.2282,
          "percent_delta": -0.4772,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4782,
          "after": 0.25,
          "delta": -0.2282,
          "percent_delta": -0.4772,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 2.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 5.0,
          "delta": 1.0,
          "percent_delta": 0.25,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 4,
        "deboosted_metrics": 1,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.2922,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3239,
        "predicted_R": 1.0,
        "predicted_RBI": 2.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4782,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2922,
          "delta": 0.0422,
          "percent_delta": 0.1688,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3239,
          "delta": 0.0739,
          "percent_delta": 0.2954,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4782,
          "delta": 0.2282,
          "percent_delta": 0.9127,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4782,
          "delta": 0.2282,
          "percent_delta": 0.9127,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.132,
        "after": 1.0,
        "delta": 0.868,
        "percent_delta": 6.5758,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.0,
        "after": 5.0,
        "delta": 1.0,
        "percent_delta": 0.25,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.27,
        "after": 0.2922,
        "delta": 0.0222,
        "percent_delta": 0.0822,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.162,
        "after": 0.0,
        "delta": -0.162,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.08,
        "after": 2.0,
        "delta": 0.92,
        "percent_delta": 0.8519,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.19,
        "after": 0.0,
        "delta": -0.19,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.344,
        "after": 0.3239,
        "delta": -0.0201,
        "percent_delta": -0.0584,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.529,
        "after": 1.0,
        "delta": 0.471,
        "percent_delta": 0.8904,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.53,
        "after": 2.0,
        "delta": 1.47,
        "percent_delta": 2.7736,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.483,
        "after": 0.4782,
        "delta": -0.0048,
        "percent_delta": -0.0099,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.765,
        "after": 0.0,
        "delta": -0.765,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 6,
      "deboosted_metrics": 4,
      "better_metrics": 7,
      "worse_metrics": 3,
      "biggest_boost": {
        "metric": "predicted_RBI",
        "before": 0.53,
        "after": 2.0,
        "delta": 1.47,
        "percent_delta": 2.7736,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.765,
        "after": 0.0,
        "delta": -0.765,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.132-
predicted_3B0.000-
predicted_AB4.000-
predicted_AVG0.270-
predicted_BB0.162-
predicted_H1.080-
predicted_HR0.190-
predicted_OBP0.344-
predicted_R0.529-
predicted_RBI0.530-
predicted_SLG0.483-
predicted_SO0.765-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.128-0.004
predicted_3B0.0000.000
predicted_AB3.765-0.235
predicted_AVG0.2910.021
predicted_BB0.1750.013
predicted_H1.0910.010
predicted_HBP0.011-
predicted_HR0.186-0.004
predicted_OBP0.3500.006
predicted_R0.5870.058
predicted_RBI0.506-0.024
predicted_SLG0.4960.013
predicted_SO0.8200.055
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1280.000
predicted_3B0.0000.000
predicted_AB3.7650.000
predicted_AVG0.2920.001
predicted_BB0.1760.002
predicted_H1.1000.010
predicted_HBP0.0110.000
predicted_HR0.1910.005
predicted_OBP0.324-0.026
predicted_R0.5970.010
predicted_RBI0.5150.008
predicted_SLG0.478-0.018
predicted_SO0.811-0.008
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.00), rates preserved: AVG=0.275 HR/AB=0.048

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.333)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI1.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.128
predicted_3B0.000-0.000
predicted_AB4.0000.235
predicted_AVG0.250-0.042
predicted_BB0.000-0.176
predicted_H1.000-0.100
predicted_HR0.000-0.191
predicted_OBP0.250-0.074
predicted_R1.0000.403
predicted_RBI1.0000.485
predicted_SLG0.250-0.228
predicted_SO1.0000.189
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB5.0001.000
BB0.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R1.0000.000
RBI2.0001.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 68
Reference playing time: 4.000
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-14.0005.0000.0000.0001.0001.0005.0001.0005.0000.35710.40000.57140.35710.07140.07140.07140.3571
last_100.2010-33.00012.0002.0000.0001.0004.0007.0002.00011.0000.36360.40000.51520.36360.03030.12120.06060.3333
season0.6068-246.00076.0009.0000.00014.00041.00036.00011.00052.0000.30890.33980.51630.30890.05690.16670.04470.2114
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1220
predicted_3B0.0010
predicted_AB3.4400
predicted_AVG0.3213
predicted_BB0.1920
predicted_H1.1050
predicted_HBP0.0110
predicted_HR0.1800
predicted_OBP0.3586
predicted_R0.6680
predicted_RBI0.4740
predicted_SLG0.5149
predicted_SO0.8950
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.13200.12200.1278model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.00003.44003.7650model_form_blend
predicted_AVG0.27000.32130.2915model_form_blend
predicted_BB0.16200.19200.1746model_form_blend
predicted_H1.08001.10501.0905model_form_blend
predicted_HBP-0.01100.0110form_only
predicted_HR0.19000.18000.1858model_form_blend
predicted_OBP0.34400.35860.3501model_form_blend
predicted_R0.52900.66800.5873model_form_blend
predicted_RBI0.53000.47400.5065model_form_blend
predicted_SLG0.48300.51490.4964model_form_blend
predicted_SO0.76500.89500.8196model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date215
Season rows before report date215
Report year2026
Profile rows used68
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB5
H2
2B1
3B0
HR0
R1
RBI2
BB0
SO0
SF0
HBP0
season_avg0.309

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB1
Hitting_AVG1.0
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedCF
gameID20260617_SF@ATL
game_typeshort
mlbID671739
playerID671739
playerNameMichael Harris II
posCF
startedTrue
startingPositionCF
teamATL
teamID2
game_date2026-06-17
sl_k_percent20.1
sl_bb_percent4.6
sl_woba0.37
sl_xwoba0.384
sl_xba0.308
sl_xslg0.55
sl_sweet_spot_percent30.9
sl_barrel_batted_rate15.0
sl_hard_hit_percent51.5
sl_exit_velocity_avg92.3
sl_launch_angle_avg11.5
sl_whiff_percent26.4
sl_swing_percent55.4
Austin Riley (663586) · BATTER · 3B · Team ATL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 252
All-history rows before 20260618: 252
System season_avg: 0.2110
Data season_avg (2026 season-to-date): 0.2188
Diff (system - data): -0.0078
System opponent_avg: 0.3060

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1620.0000.000Hitting_2B0.1550.000-0.1550.000
predicted_3B0.0140.0000.000Hitting_3B0.0160.000-0.0160.000
predicted_AB3.6104.0004.000Hitting_AB3.7545.0000.246-1.000
predicted_AVG0.2300.2500.250Hitting_AVG0.2190.6000.031-0.350
predicted_BB0.3380.0000.000Hitting_BB0.3250.000-0.3250.000
predicted_CS-0.0000.000BaseRunning_CS0.0040.000-0.0040.000
predicted_H0.8301.0001.000Hitting_H0.8213.0000.179-2.000
predicted_HR0.1000.0000.000Hitting_HR0.1230.000-0.1230.000
predicted_OBP0.3030.2500.250Hitting_OBP0.2930.600-0.043-0.350
predicted_R0.4191.0000.000Hitting_R0.5000.0000.5001.000
predicted_RBI0.4001.0000.000Hitting_RBI0.5281.0000.4720.000
predicted_SLG0.3650.2500.250Hitting_SLG0.3670.600-0.117-0.350
predicted_SO1.1622.0001.000Hitting_SO1.2461.0000.7541.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics5
Deboosted Metrics4
Better Metrics4
Worse Metrics5
Biggest Boostpredicted_SO: 1.1620 -> 2.0000 (boost 0.8380, worse)
Biggest Deboostpredicted_BB: 0.3380 -> 0.0000 (deboost -0.3380, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend20202-predicted_R: 0.4190 -> 0.3542 (deboost -0.0648, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_OBP: 0.3017 -> 0.2954 (deboost -0.0063, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling82635predicted_AB: 3.5761 -> 4.0000 (boost 0.4239, better)predicted_RBI: 0.3945 -> 0.0000 (deboost -0.3945, worse)AB rounded to 4 (raw=3.61), rates preserved: AVG=0.227 HR/AB=0.025
5bvp_blend00000--Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.400)
6consistency_constraints10101-predicted_R: 0.3600 -> 0.0000 (deboost -0.3600, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context31212predicted_AVG: 0.2296 -> 0.2500 (boost 0.0204, better)predicted_SLG: 0.3605 -> 0.2500 (deboost -0.1105, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference33021predicted_R: 0.0000 -> 1.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
9current_json_final32121predicted_SLG: 0.2500 -> 0.3605 (boost 0.1105, better)predicted_AVG: 0.2500 -> 0.2296 (deboost -0.0204, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "663586",
  "player_name": "Austin Riley",
  "position": "3B",
  "team": "ATL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.162,
        "predicted_3B": 0.014,
        "predicted_AB": 3.61,
        "predicted_AVG": 0.23,
        "predicted_BB": 0.338,
        "predicted_H": 0.83,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.303,
        "predicted_R": 0.419,
        "predicted_RBI": 0.4,
        "predicted_SLG": 0.365,
        "predicted_SO": 1.162
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1777,
        "predicted_3B": 0.0115,
        "predicted_AB": 3.5761,
        "predicted_AVG": 0.2277,
        "predicted_BB": 0.3308,
        "predicted_H": 0.8139,
        "predicted_HBP": 0.066,
        "predicted_HR": 0.0869,
        "predicted_OBP": 0.3017,
        "predicted_R": 0.3542,
        "predicted_RBI": 0.3881,
        "predicted_SLG": 0.3562,
        "predicted_SO": 1.1582
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.162,
          "after": 0.1777,
          "delta": 0.0157,
          "percent_delta": 0.0969,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.014,
          "after": 0.0115,
          "delta": -0.0025,
          "percent_delta": -0.1786,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.61,
          "after": 3.5761,
          "delta": -0.0339,
          "percent_delta": -0.0094,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.23,
          "after": 0.2277,
          "delta": -0.0023,
          "percent_delta": -0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.338,
          "after": 0.3308,
          "delta": -0.0072,
          "percent_delta": -0.0213,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.83,
          "after": 0.8139,
          "delta": -0.0161,
          "percent_delta": -0.0194,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.0869,
          "delta": -0.0131,
          "percent_delta": -0.131,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.303,
          "after": 0.3017,
          "delta": -0.0013,
          "percent_delta": -0.0043,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.419,
          "after": 0.3542,
          "delta": -0.0648,
          "percent_delta": -0.1547,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4,
          "after": 0.3881,
          "delta": -0.0119,
          "percent_delta": -0.0298,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.365,
          "after": 0.3562,
          "delta": -0.0088,
          "percent_delta": -0.0241,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.162,
          "after": 1.1582,
          "delta": -0.0038,
          "percent_delta": -0.0033,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.419,
          "after": 0.3542,
          "delta": -0.0648,
          "percent_delta": -0.1547,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 74
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1777,
        "predicted_3B": 0.0115,
        "predicted_AB": 3.5761,
        "predicted_AVG": 0.2296,
        "predicted_BB": 0.3341,
        "predicted_H": 0.8211,
        "predicted_HBP": 0.066,
        "predicted_HR": 0.0891,
        "predicted_OBP": 0.2954,
        "predicted_R": 0.36,
        "predicted_RBI": 0.3945,
        "predicted_SLG": 0.3605,
        "predicted_SO": 1.1466
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1777,
          "after": 0.1777,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0115,
          "after": 0.0115,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.5761,
          "after": 3.5761,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2277,
          "after": 0.2296,
          "delta": 0.0019,
          "percent_delta": 0.0083,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3308,
          "after": 0.3341,
          "delta": 0.0033,
          "percent_delta": 0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8139,
          "after": 0.8211,
          "delta": 0.0072,
          "percent_delta": 0.0088,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.066,
          "after": 0.066,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0869,
          "after": 0.0891,
          "delta": 0.0022,
          "percent_delta": 0.0253,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3017,
          "after": 0.2954,
          "delta": -0.0063,
          "percent_delta": -0.0209,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3542,
          "after": 0.36,
          "delta": 0.0058,
          "percent_delta": 0.0164,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3881,
          "after": 0.3945,
          "delta": 0.0064,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3562,
          "after": 0.3605,
          "delta": 0.0043,
          "percent_delta": 0.0121,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.1582,
          "after": 1.1466,
          "delta": -0.0116,
          "percent_delta": -0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3017,
          "after": 0.2954,
          "delta": -0.0063,
          "percent_delta": -0.0209,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.61), rates preserved: AVG=0.227 HR/AB=0.025",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1777,
          "after": 0.0,
          "delta": -0.1777,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0115,
          "after": 0.0,
          "delta": -0.0115,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.5761,
          "after": 4.0,
          "delta": 0.4239,
          "percent_delta": 0.1185,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3341,
          "after": 0.0,
          "delta": -0.3341,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8211,
          "after": 1.0,
          "delta": 0.1789,
          "percent_delta": 0.2179,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.066,
          "after": 0.0,
          "delta": -0.066,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0891,
          "after": 0.0,
          "delta": -0.0891,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3945,
          "after": 0.0,
          "delta": -0.3945,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1466,
          "after": 1.0,
          "delta": -0.1466,
          "percent_delta": -0.1279,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 2,
        "deboosted_metrics": 6,
        "better_metrics": 3,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.5761,
          "after": 4.0,
          "delta": 0.4239,
          "percent_delta": 0.1185,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3945,
          "after": 0.0,
          "delta": -0.3945,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.400)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9429,
        "bvp": 0.0571
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.36,
          "after": 0.0,
          "delta": -0.36,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.36,
          "after": 0.0,
          "delta": -0.36,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2296,
          "after": 0.25,
          "delta": 0.0204,
          "percent_delta": 0.0889,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2954,
          "after": 0.25,
          "delta": -0.0454,
          "percent_delta": -0.1537,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3605,
          "after": 0.25,
          "delta": -0.1105,
          "percent_delta": -0.3065,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2296,
          "after": 0.25,
          "delta": 0.0204,
          "percent_delta": 0.0889,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3605,
          "after": 0.25,
          "delta": -0.1105,
          "percent_delta": -0.3065,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2296,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2954,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3605,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2296,
          "delta": -0.0204,
          "percent_delta": -0.0816,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2954,
          "delta": 0.0454,
          "percent_delta": 0.1817,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3605,
          "delta": 0.1105,
          "percent_delta": 0.4419,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3605,
          "delta": 0.1105,
          "percent_delta": 0.4419,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2296,
          "delta": -0.0204,
          "percent_delta": -0.0816,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.162,
        "after": 0.0,
        "delta": -0.162,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.014,
        "after": 0.0,
        "delta": -0.014,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.61,
        "after": 4.0,
        "delta": 0.39,
        "percent_delta": 0.108,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.23,
        "after": 0.2296,
        "delta": -0.0004,
        "percent_delta": -0.0017,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.338,
        "after": 0.0,
        "delta": -0.338,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.83,
        "after": 1.0,
        "delta": 0.17,
        "percent_delta": 0.2048,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.303,
        "after": 0.2954,
        "delta": -0.0076,
        "percent_delta": -0.0251,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.419,
        "after": 1.0,
        "delta": 0.581,
        "percent_delta": 1.3866,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.4,
        "after": 1.0,
        "delta": 0.6,
        "percent_delta": 1.5,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.365,
        "after": 0.3605,
        "delta": -0.0045,
        "percent_delta": -0.0123,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.162,
        "after": 2.0,
        "delta": 0.838,
        "percent_delta": 0.7212,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 5,
      "deboosted_metrics": 4,
      "better_metrics": 4,
      "worse_metrics": 5,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 1.162,
        "after": 2.0,
        "delta": 0.838,
        "percent_delta": 0.7212,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_BB",
        "before": 0.338,
        "after": 0.0,
        "delta": -0.338,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.162-
predicted_3B0.014-
predicted_AB3.610-
predicted_AVG0.230-
predicted_BB0.338-
predicted_H0.830-
predicted_HR0.100-
predicted_OBP0.303-
predicted_R0.419-
predicted_RBI0.400-
predicted_SLG0.365-
predicted_SO1.162-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1780.016
predicted_3B0.011-0.003
predicted_AB3.576-0.034
predicted_AVG0.228-0.002
predicted_BB0.331-0.007
predicted_H0.814-0.016
predicted_HBP0.066-
predicted_HR0.087-0.013
predicted_OBP0.302-0.001
predicted_R0.354-0.065
predicted_RBI0.388-0.012
predicted_SLG0.356-0.009
predicted_SO1.158-0.004
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1780.000
predicted_3B0.0110.000
predicted_AB3.5760.000
predicted_AVG0.2300.002
predicted_BB0.3340.003
predicted_H0.8210.007
predicted_HBP0.0660.000
predicted_HR0.0890.002
predicted_OBP0.295-0.006
predicted_R0.3600.006
predicted_RBI0.3950.006
predicted_SLG0.3600.004
predicted_SO1.147-0.012
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.61), rates preserved: AVG=0.227 HR/AB=0.025

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.400)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.178
predicted_3B0.000-0.011
predicted_AB4.0000.424
predicted_AVG0.2500.020
predicted_BB0.000-0.334
predicted_H1.0000.179
predicted_HR0.000-0.089
predicted_OBP0.250-0.045
predicted_R0.000-0.360
predicted_RBI0.000-0.395
predicted_SLG0.250-0.110
predicted_SO1.000-0.147
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 74
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0004.0001.0000.0000.0001.0000.0001.0006.0000.23530.27780.29410.23530.00000.05880.05880.3529
last_100.2010-33.0008.0003.0000.0000.0002.0000.0004.00012.0000.24240.34210.33330.24240.00000.06060.12120.3636
season0.6074-266.00056.00012.0001.0008.00035.00031.00025.00086.0000.21050.29100.35340.21050.03010.13160.09400.3233
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1990
predicted_3B0.0080
predicted_AB3.5300
predicted_AVG0.2245
predicted_BB0.3210
predicted_H0.7920
predicted_HBP0.0660
predicted_HR0.0690
predicted_OBP0.2999
predicted_R0.2660
predicted_RBI0.3720
predicted_SLG0.3441
predicted_SO1.1530
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.16200.19900.1777model_form_blend
predicted_3B0.01400.00800.0115model_form_blend
predicted_AB3.61003.53003.5761model_form_blend
predicted_AVG0.23000.22450.2277model_form_blend
predicted_BB0.33800.32100.3308model_form_blend
predicted_H0.83000.79200.8139model_form_blend
predicted_HBP-0.06600.0660form_only
predicted_HR0.10000.06900.0869model_form_blend
predicted_OBP0.30300.29990.3017model_form_blend
predicted_R0.41900.26600.3542model_form_blend
predicted_RBI0.40000.37200.3881model_form_blend
predicted_SLG0.36500.34410.3562model_form_blend
predicted_SO1.16201.15301.1582model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date252
Season rows before report date252
Report year2026
Profile rows used74
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R1
RBI1
BB0
SO2
SF0
HBP0
season_avg0.211

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.6
Hitting_BB0
Hitting_GIDP0
Hitting_H3
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB3
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260617_SF@ATL_2
game_typefull
mlbID663586
playerID663586
playerNameAustin Riley
pos3B
startedTrue
startingPosition3B
teamATL
teamID2
game_date2026-06-17
sl_k_percent28.5
sl_bb_percent8.4
sl_woba0.29
sl_xwoba0.302
sl_xba0.212
sl_xslg0.39
sl_sweet_spot_percent30.8
sl_barrel_batted_rate10.4
sl_hard_hit_percent45.1
sl_exit_velocity_avg91.2
sl_launch_angle_avg19.4
sl_whiff_percent32.1
sl_swing_percent46.8
Drake Baldwin (686948) · BATTER · SS · Team ATL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 219
All-history rows before 20260618: 219
System season_avg: 0.3020
Data season_avg (2026 season-to-date): 0.2969
Diff (system - data): 0.0051
System opponent_avg: 0.2730

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1180.0000.000Hitting_2B0.1230.000-0.1230.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.0903.0004.000Hitting_AB3.9685.000-0.968-2.000
predicted_AVG0.2560.0000.250Hitting_AVG0.2970.200-0.297-0.200
predicted_BB0.4711.0000.000Hitting_BB0.5070.0000.4931.000
predicted_CS-0.0000.000BaseRunning_CS0.0140.000-0.0140.000
predicted_H1.0500.0001.000Hitting_H1.1781.000-1.178-1.000
predicted_HR0.2900.0000.000Hitting_HR0.2740.000-0.2740.000
predicted_OBP0.3550.2500.250Hitting_OBP0.3830.200-0.1330.050
predicted_R0.8240.0001.000Hitting_R0.8451.000-0.845-1.000
predicted_RBI0.7600.0001.000Hitting_RBI0.8130.000-0.8130.000
predicted_SLG0.5350.0000.250Hitting_SLG0.5350.200-0.535-0.200
predicted_SO0.9610.0001.000Hitting_SO0.9452.000-0.945-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics3
Deboosted Metrics7
Better Metrics4
Worse Metrics6
Biggest Boostpredicted_BB: 0.4710 -> 1.0000 (boost 0.5290, better)
Biggest Deboostpredicted_AB: 4.0900 -> 3.0000 (deboost -1.0900, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend43131predicted_SLG: 0.5350 -> 0.5627 (boost 0.0277, better)predicted_AB: 4.0900 -> 3.9070 (deboost -0.1830, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_SLG: 0.5627 -> 0.5468 (deboost -0.0159, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62424predicted_RBI: 0.7759 -> 1.0000 (boost 0.2241, better)predicted_BB: 0.4757 -> 0.0000 (deboost -0.4757, worse)AB rounded to 4 (raw=4.09), rates preserved: AVG=0.261 HR/AB=0.078
5consistency_constraints11010predicted_R: 0.7957 -> 1.0000 (boost 0.2043, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.5468 -> 0.2500 (deboost -0.2968, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference61524predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2500 -> 0.5468 (boost 0.2968, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "686948",
  "player_name": "Drake Baldwin",
  "position": "SS",
  "team": "ATL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.118,
        "predicted_3B": 0.0,
        "predicted_AB": 4.09,
        "predicted_AVG": 0.256,
        "predicted_BB": 0.471,
        "predicted_H": 1.05,
        "predicted_HR": 0.29,
        "predicted_OBP": 0.355,
        "predicted_R": 0.824,
        "predicted_RBI": 0.76,
        "predicted_SLG": 0.535,
        "predicted_SO": 0.961
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1097,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.907,
        "predicted_AVG": 0.2715,
        "predicted_BB": 0.471,
        "predicted_H": 1.0583,
        "predicted_HBP": 0.033,
        "predicted_HR": 0.3112,
        "predicted_OBP": 0.3624,
        "predicted_R": 0.7828,
        "predicted_RBI": 0.7633,
        "predicted_SLG": 0.5627,
        "predicted_SO": 0.9668
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.118,
          "after": 0.1097,
          "delta": -0.0083,
          "percent_delta": -0.0703,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.09,
          "after": 3.907,
          "delta": -0.183,
          "percent_delta": -0.0447,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.256,
          "after": 0.2715,
          "delta": 0.0155,
          "percent_delta": 0.0605,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.471,
          "after": 0.471,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.05,
          "after": 1.0583,
          "delta": 0.0083,
          "percent_delta": 0.0079,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.29,
          "after": 0.3112,
          "delta": 0.0212,
          "percent_delta": 0.0731,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.355,
          "after": 0.3624,
          "delta": 0.0074,
          "percent_delta": 0.0208,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.824,
          "after": 0.7828,
          "delta": -0.0412,
          "percent_delta": -0.05,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.76,
          "after": 0.7633,
          "delta": 0.0033,
          "percent_delta": 0.0043,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.535,
          "after": 0.5627,
          "delta": 0.0277,
          "percent_delta": 0.0518,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.961,
          "after": 0.9668,
          "delta": 0.0058,
          "percent_delta": 0.006,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.535,
          "after": 0.5627,
          "delta": 0.0277,
          "percent_delta": 0.0518,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.09,
          "after": 3.907,
          "delta": -0.183,
          "percent_delta": -0.0447,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 51
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1097,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.907,
        "predicted_AVG": 0.2733,
        "predicted_BB": 0.4757,
        "predicted_H": 1.0676,
        "predicted_HBP": 0.033,
        "predicted_HR": 0.3192,
        "predicted_OBP": 0.3521,
        "predicted_R": 0.7957,
        "predicted_RBI": 0.7759,
        "predicted_SLG": 0.5468,
        "predicted_SO": 0.9571
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1097,
          "after": 0.1097,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.907,
          "after": 3.907,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2715,
          "after": 0.2733,
          "delta": 0.0018,
          "percent_delta": 0.0066,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.471,
          "after": 0.4757,
          "delta": 0.0047,
          "percent_delta": 0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0583,
          "after": 1.0676,
          "delta": 0.0093,
          "percent_delta": 0.0088,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.033,
          "after": 0.033,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.3112,
          "after": 0.3192,
          "delta": 0.008,
          "percent_delta": 0.0257,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3624,
          "after": 0.3521,
          "delta": -0.0103,
          "percent_delta": -0.0284,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.7828,
          "after": 0.7957,
          "delta": 0.0129,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.7633,
          "after": 0.7759,
          "delta": 0.0126,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5627,
          "after": 0.5468,
          "delta": -0.0159,
          "percent_delta": -0.0283,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9668,
          "after": 0.9571,
          "delta": -0.0097,
          "percent_delta": -0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.5627,
          "after": 0.5468,
          "delta": -0.0159,
          "percent_delta": -0.0283,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.09), rates preserved: AVG=0.261 HR/AB=0.078",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1097,
          "after": 0.0,
          "delta": -0.1097,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.907,
          "after": 4.0,
          "delta": 0.093,
          "percent_delta": 0.0238,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4757,
          "after": 0.0,
          "delta": -0.4757,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0676,
          "after": 1.0,
          "delta": -0.0676,
          "percent_delta": -0.0633,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.033,
          "after": 0.0,
          "delta": -0.033,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.3192,
          "after": 0.0,
          "delta": -0.3192,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.7759,
          "after": 1.0,
          "delta": 0.2241,
          "percent_delta": 0.2888,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.9571,
          "after": 1.0,
          "delta": 0.0429,
          "percent_delta": 0.0448,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.7759,
          "after": 1.0,
          "delta": 0.2241,
          "percent_delta": 0.2888,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.4757,
          "after": 0.0,
          "delta": -0.4757,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.7957,
          "after": 1.0,
          "delta": 0.2043,
          "percent_delta": 0.2568,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.7957,
          "after": 1.0,
          "delta": 0.2043,
          "percent_delta": 0.2568,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2733,
          "after": 0.25,
          "delta": -0.0233,
          "percent_delta": -0.0853,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3521,
          "after": 0.25,
          "delta": -0.1021,
          "percent_delta": -0.29,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5468,
          "after": 0.25,
          "delta": -0.2968,
          "percent_delta": -0.5428,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.5468,
          "after": 0.25,
          "delta": -0.2968,
          "percent_delta": -0.5428,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 1,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2733,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3521,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.5468,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2733,
          "delta": 0.0233,
          "percent_delta": 0.093,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3521,
          "delta": 0.1021,
          "percent_delta": 0.4086,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.5468,
          "delta": 0.2968,
          "percent_delta": 1.1873,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.5468,
          "delta": 0.2968,
          "percent_delta": 1.1873,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.118,
        "after": 0.0,
        "delta": -0.118,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.09,
        "after": 3.0,
        "delta": -1.09,
        "percent_delta": -0.2665,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.256,
        "after": 0.2733,
        "delta": 0.0173,
        "percent_delta": 0.0676,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.471,
        "after": 1.0,
        "delta": 0.529,
        "percent_delta": 1.1231,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.05,
        "after": 0.0,
        "delta": -1.05,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.29,
        "after": 0.0,
        "delta": -0.29,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.355,
        "after": 0.3521,
        "delta": -0.0029,
        "percent_delta": -0.0082,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.824,
        "after": 0.0,
        "delta": -0.824,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.76,
        "after": 0.0,
        "delta": -0.76,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.535,
        "after": 0.5468,
        "delta": 0.0118,
        "percent_delta": 0.0221,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.961,
        "after": 0.0,
        "delta": -0.961,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 3,
      "deboosted_metrics": 7,
      "better_metrics": 4,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.471,
        "after": 1.0,
        "delta": 0.529,
        "percent_delta": 1.1231,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 4.09,
        "after": 3.0,
        "delta": -1.09,
        "percent_delta": -0.2665,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.118-
predicted_3B0.000-
predicted_AB4.090-
predicted_AVG0.256-
predicted_BB0.471-
predicted_H1.050-
predicted_HR0.290-
predicted_OBP0.355-
predicted_R0.824-
predicted_RBI0.760-
predicted_SLG0.535-
predicted_SO0.961-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.110-0.008
predicted_3B0.0010.001
predicted_AB3.907-0.183
predicted_AVG0.2720.016
predicted_BB0.4710.000
predicted_H1.0580.008
predicted_HBP0.033-
predicted_HR0.3110.021
predicted_OBP0.3620.007
predicted_R0.783-0.041
predicted_RBI0.7630.003
predicted_SLG0.5630.028
predicted_SO0.9670.006
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1100.000
predicted_3B0.0010.000
predicted_AB3.9070.000
predicted_AVG0.2730.002
predicted_BB0.4760.005
predicted_H1.0680.009
predicted_HBP0.0330.000
predicted_HR0.3190.008
predicted_OBP0.352-0.010
predicted_R0.7960.013
predicted_RBI0.7760.013
predicted_SLG0.547-0.016
predicted_SO0.957-0.010
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.09), rates preserved: AVG=0.261 HR/AB=0.078

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.110
predicted_3B0.000-0.001
predicted_AB4.0000.093
predicted_AVG0.250-0.023
predicted_BB0.000-0.476
predicted_H1.000-0.068
predicted_HR0.000-0.319
predicted_OBP0.250-0.102
predicted_R1.0000.204
predicted_RBI1.0000.224
predicted_SLG0.250-0.297
predicted_SO1.0000.043
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 51
Reference playing time: 4.090
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-15.0004.0000.0000.0002.0004.0003.0003.0005.0000.26670.36840.66670.26670.13330.26670.20000.3333
last_100.2010-34.00011.0001.0000.0005.0008.0007.0004.00010.0000.32350.38460.79410.32350.14710.23530.11770.2941
season0.6051-199.00060.0006.0000.00015.00040.00042.00024.00049.0000.30150.38330.55780.30150.07540.20100.12060.2462
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0980
predicted_3B0.0020
predicted_AB3.6500
predicted_AVG0.2933
predicted_BB0.4710
predicted_H1.0700
predicted_HBP0.0330
predicted_HR0.3410
predicted_OBP0.3727
predicted_R0.7250
predicted_RBI0.7680
predicted_SLG0.6015
predicted_SO0.9750
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.11800.09800.1097model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB4.09003.65003.9070model_form_blend
predicted_AVG0.25600.29330.2715model_form_blend
predicted_BB0.47100.47100.4710model_form_blend
predicted_H1.05001.07001.0583model_form_blend
predicted_HBP-0.03300.0330form_only
predicted_HR0.29000.34100.3112model_form_blend
predicted_OBP0.35500.37270.3624model_form_blend
predicted_R0.82400.72500.7828model_form_blend
predicted_RBI0.76000.76800.7633model_form_blend
predicted_SLG0.53500.60150.5627model_form_blend
predicted_SO0.96100.97500.9668model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date219
Season rows before report date219
Report year2026
Profile rows used51
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO0
SF0
HBP0
season_avg0.302

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.2
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB1
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260617_SF@ATL_2
game_typefull
mlbID686948
playerID686948
playerNameDrake Baldwin
posC
startedTrue
startingPositionDH
teamATL
teamID2
game_date2026-06-17
sl_k_percent21.7
sl_bb_percent10.6
sl_woba0.398
sl_xwoba0.41
sl_xba0.297
sl_xslg0.58
sl_sweet_spot_percent41.3
sl_barrel_batted_rate18.7
sl_hard_hit_percent52.7
sl_exit_velocity_avg92.5
sl_launch_angle_avg11.4
sl_whiff_percent23.6
sl_swing_percent50.6
Mike Yastrzemski (573262) · BATTER · LF · Team ATL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 171
All-history rows before 20260618: 171
System season_avg: 0.2280
Data season_avg (2026 season-to-date): 0.2179
Diff (system - data): 0.0101
System opponent_avg: 0.1430

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1381.0000.000Hitting_2B0.1400.0000.8601.000
predicted_3B0.0150.0000.000Hitting_3B0.0120.000-0.0120.000
predicted_AB2.8314.0003.000Hitting_AB3.1403.0000.8601.000
predicted_AVG0.2420.5000.333Hitting_AVG0.2180.0000.2820.500
predicted_BB0.2920.0000.000Hitting_BB0.3391.000-0.339-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.6502.0001.000Hitting_H0.6840.0001.3162.000
predicted_HR0.0700.0000.000Hitting_HR0.0530.000-0.0530.000
predicted_OBP0.3000.5000.333Hitting_OBP0.3050.2500.1950.250
predicted_R0.3691.0000.000Hitting_R0.4620.0000.5381.000
predicted_RBI0.3001.0000.000Hitting_RBI0.2750.0000.7251.000
predicted_SLG0.3160.7500.333Hitting_SLG0.3200.0000.4300.750
predicted_SO0.7850.0001.000Hitting_SO0.8651.000-0.865-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics10
Boosted Metrics6
Deboosted Metrics4
Better Metrics7
Worse Metrics3
Biggest Boostpredicted_H: 0.6500 -> 2.0000 (boost 1.3500, better)
Biggest Deboostpredicted_SO: 0.7850 -> 0.0000 (deboost -0.7850, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend31203predicted_SO: 0.7850 -> 0.8647 (boost 0.0797, worse)predicted_AVG: 0.2420 -> 0.2256 (deboost -0.0164, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot21111predicted_SLG: 0.3009 -> 0.3314 (boost 0.0305, better)predicted_AVG: 0.2256 -> 0.2201 (deboost -0.0055, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73425predicted_H: 0.6324 -> 1.0000 (boost 0.3676, better)predicted_BB: 0.3137 -> 0.0000 (deboost -0.3137, worse)AB rounded to 3 (raw=2.87), rates preserved: AVG=0.220 HR/AB=0.020
5consistency_constraints10101-predicted_R: 0.3323 -> 0.0000 (deboost -0.3323, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context22020predicted_AVG: 0.2201 -> 0.3330 (boost 0.1129, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference65160predicted_2B: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final20202-predicted_AVG: 0.3330 -> 0.2201 (deboost -0.1129, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "573262",
  "player_name": "Mike Yastrzemski",
  "position": "LF",
  "team": "ATL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.138,
        "predicted_3B": 0.015,
        "predicted_AB": 2.831,
        "predicted_AVG": 0.242,
        "predicted_BB": 0.292,
        "predicted_H": 0.65,
        "predicted_HR": 0.07,
        "predicted_OBP": 0.3,
        "predicted_R": 0.369,
        "predicted_RBI": 0.3,
        "predicted_SLG": 0.316,
        "predicted_SO": 0.785
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1194,
        "predicted_3B": 0.0129,
        "predicted_AB": 2.8735,
        "predicted_AVG": 0.2256,
        "predicted_BB": 0.3106,
        "predicted_H": 0.6269,
        "predicted_HBP": 0.046,
        "predicted_HR": 0.0568,
        "predicted_OBP": 0.2981,
        "predicted_R": 0.3269,
        "predicted_RBI": 0.2785,
        "predicted_SLG": 0.3009,
        "predicted_SO": 0.8647
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.138,
          "after": 0.1194,
          "delta": -0.0186,
          "percent_delta": -0.1348,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.015,
          "after": 0.0129,
          "delta": -0.0021,
          "percent_delta": -0.14,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.831,
          "after": 2.8735,
          "delta": 0.0425,
          "percent_delta": 0.015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.242,
          "after": 0.2256,
          "delta": -0.0164,
          "percent_delta": -0.0678,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.292,
          "after": 0.3106,
          "delta": 0.0186,
          "percent_delta": 0.0637,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.65,
          "after": 0.6269,
          "delta": -0.0231,
          "percent_delta": -0.0355,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.07,
          "after": 0.0568,
          "delta": -0.0132,
          "percent_delta": -0.1886,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3,
          "after": 0.2981,
          "delta": -0.0019,
          "percent_delta": -0.0063,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.369,
          "after": 0.3269,
          "delta": -0.0421,
          "percent_delta": -0.1141,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3,
          "after": 0.2785,
          "delta": -0.0215,
          "percent_delta": -0.0717,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.316,
          "after": 0.3009,
          "delta": -0.0151,
          "percent_delta": -0.0478,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.785,
          "after": 0.8647,
          "delta": 0.0797,
          "percent_delta": 0.1015,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.785,
          "after": 0.8647,
          "delta": 0.0797,
          "percent_delta": 0.1015,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.242,
          "after": 0.2256,
          "delta": -0.0164,
          "percent_delta": -0.0678,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 65
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1194,
        "predicted_3B": 0.0129,
        "predicted_AB": 2.8735,
        "predicted_AVG": 0.2201,
        "predicted_BB": 0.3137,
        "predicted_H": 0.6324,
        "predicted_HBP": 0.046,
        "predicted_HR": 0.0583,
        "predicted_OBP": 0.2969,
        "predicted_R": 0.3323,
        "predicted_RBI": 0.2831,
        "predicted_SLG": 0.3314,
        "predicted_SO": 0.8561
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1194,
          "after": 0.1194,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0129,
          "after": 0.0129,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.8735,
          "after": 2.8735,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2256,
          "after": 0.2201,
          "delta": -0.0055,
          "percent_delta": -0.0244,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3106,
          "after": 0.3137,
          "delta": 0.0031,
          "percent_delta": 0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6269,
          "after": 0.6324,
          "delta": 0.0055,
          "percent_delta": 0.0088,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.046,
          "after": 0.046,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0568,
          "after": 0.0583,
          "delta": 0.0015,
          "percent_delta": 0.0264,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2981,
          "after": 0.2969,
          "delta": -0.0012,
          "percent_delta": -0.004,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3269,
          "after": 0.3323,
          "delta": 0.0054,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2785,
          "after": 0.2831,
          "delta": 0.0046,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3009,
          "after": 0.3314,
          "delta": 0.0305,
          "percent_delta": 0.1014,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8647,
          "after": 0.8561,
          "delta": -0.0086,
          "percent_delta": -0.0099,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.3009,
          "after": 0.3314,
          "delta": 0.0305,
          "percent_delta": 0.1014,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2256,
          "after": 0.2201,
          "delta": -0.0055,
          "percent_delta": -0.0244,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.87), rates preserved: AVG=0.220 HR/AB=0.020",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1194,
          "after": 0.0,
          "delta": -0.1194,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0129,
          "after": 0.0,
          "delta": -0.0129,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.8735,
          "after": 3.0,
          "delta": 0.1265,
          "percent_delta": 0.044,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3137,
          "after": 0.0,
          "delta": -0.3137,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6324,
          "after": 1.0,
          "delta": 0.3676,
          "percent_delta": 0.5813,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.046,
          "after": 0.0,
          "delta": -0.046,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0583,
          "after": 0.0,
          "delta": -0.0583,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2831,
          "after": 0.0,
          "delta": -0.2831,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8561,
          "after": 1.0,
          "delta": 0.1439,
          "percent_delta": 0.1681,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.6324,
          "after": 1.0,
          "delta": 0.3676,
          "percent_delta": 0.5813,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3137,
          "after": 0.0,
          "delta": -0.3137,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3323,
          "after": 0.0,
          "delta": -0.3323,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3323,
          "after": 0.0,
          "delta": -0.3323,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2201,
          "after": 0.333,
          "delta": 0.1129,
          "percent_delta": 0.5129,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2969,
          "after": 0.333,
          "delta": 0.0361,
          "percent_delta": 0.1216,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3314,
          "after": 0.333,
          "delta": 0.0016,
          "percent_delta": 0.0048,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2201,
          "after": 0.333,
          "delta": 0.1129,
          "percent_delta": 0.5129,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 5,
        "deboosted_metrics": 1,
        "better_metrics": 6,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2201,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2969,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3314,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2201,
          "delta": -0.1129,
          "percent_delta": -0.3391,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2969,
          "delta": -0.0361,
          "percent_delta": -0.1086,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3314,
          "delta": -0.0016,
          "percent_delta": -0.0047,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2201,
          "delta": -0.1129,
          "percent_delta": -0.3391,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.138,
        "after": 1.0,
        "delta": 0.862,
        "percent_delta": 6.2464,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.015,
        "after": 0.0,
        "delta": -0.015,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.831,
        "after": 4.0,
        "delta": 1.169,
        "percent_delta": 0.4129,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.242,
        "after": 0.2201,
        "delta": -0.0219,
        "percent_delta": -0.0905,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.292,
        "after": 0.0,
        "delta": -0.292,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.65,
        "after": 2.0,
        "delta": 1.35,
        "percent_delta": 2.0769,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.07,
        "after": 0.0,
        "delta": -0.07,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.3,
        "after": 0.2969,
        "delta": -0.0031,
        "percent_delta": -0.0103,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.369,
        "after": 1.0,
        "delta": 0.631,
        "percent_delta": 1.71,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.3,
        "after": 1.0,
        "delta": 0.7,
        "percent_delta": 2.3333,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.316,
        "after": 0.3314,
        "delta": 0.0154,
        "percent_delta": 0.0487,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.785,
        "after": 0.0,
        "delta": -0.785,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 6,
      "deboosted_metrics": 4,
      "better_metrics": 7,
      "worse_metrics": 3,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 0.65,
        "after": 2.0,
        "delta": 1.35,
        "percent_delta": 2.0769,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.785,
        "after": 0.0,
        "delta": -0.785,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.138-
predicted_3B0.015-
predicted_AB2.831-
predicted_AVG0.242-
predicted_BB0.292-
predicted_H0.650-
predicted_HR0.070-
predicted_OBP0.300-
predicted_R0.369-
predicted_RBI0.300-
predicted_SLG0.316-
predicted_SO0.785-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.119-0.019
predicted_3B0.013-0.002
predicted_AB2.8730.042
predicted_AVG0.226-0.016
predicted_BB0.3110.019
predicted_H0.627-0.023
predicted_HBP0.046-
predicted_HR0.057-0.013
predicted_OBP0.298-0.002
predicted_R0.327-0.042
predicted_RBI0.279-0.021
predicted_SLG0.301-0.015
predicted_SO0.8650.080
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1190.000
predicted_3B0.0130.000
predicted_AB2.8730.000
predicted_AVG0.220-0.006
predicted_BB0.3140.003
predicted_H0.6320.005
predicted_HBP0.0460.000
predicted_HR0.0580.001
predicted_OBP0.297-0.001
predicted_R0.3320.005
predicted_RBI0.2830.005
predicted_SLG0.3310.030
predicted_SO0.856-0.009
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.87), rates preserved: AVG=0.220 HR/AB=0.020

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.119
predicted_3B0.000-0.013
predicted_AB3.0000.127
predicted_AVG0.3330.113
predicted_BB0.000-0.314
predicted_H1.0000.368
predicted_HR0.000-0.058
predicted_OBP0.3330.036
predicted_R0.000-0.332
predicted_RBI0.000-0.283
predicted_SLG0.3330.002
predicted_SO1.0000.144
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 65
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-13.0002.0000.0000.0000.0001.0000.0002.0007.0000.15380.26670.15380.15380.00000.07690.15380.5385
last_100.2010-29.0004.0000.0000.0000.0001.0001.0004.00011.0000.13790.26470.13790.13790.00000.03450.13790.3793
season0.6065-184.00042.0009.0001.0003.00017.00024.00019.00051.0000.22830.31070.33700.22830.01630.09240.10330.2772
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0930
predicted_3B0.0100
predicted_AB2.9340
predicted_AVG0.2023
predicted_BB0.3370
predicted_H0.5940
predicted_HBP0.0460
predicted_HR0.0380
predicted_OBP0.2953
predicted_R0.2670
predicted_RBI0.2480
predicted_SLG0.2795
predicted_SO0.9780
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.13800.09300.1194model_form_blend
predicted_3B0.01500.01000.0129model_form_blend
predicted_AB2.83102.93402.8735model_form_blend
predicted_AVG0.24200.20230.2256model_form_blend
predicted_BB0.29200.33700.3106model_form_blend
predicted_H0.65000.59400.6269model_form_blend
predicted_HBP-0.04600.0460form_only
predicted_HR0.07000.03800.0568model_form_blend
predicted_OBP0.30000.29530.2981model_form_blend
predicted_R0.36900.26700.3269model_form_blend
predicted_RBI0.30000.24800.2785model_form_blend
predicted_SLG0.31600.27950.3009model_form_blend
predicted_SO0.78500.97800.8647model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date171
Season rows before report date171
Report year2026
Profile rows used65
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H2
2B1
3B0
HR0
R1
RBI1
BB0
SO0
SF0
HBP0
season_avg0.228

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.0
Hitting_BB1
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB0
Hitting_battingOrder8
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedRF-LF
gameID20260617_SF@ATL_2
game_typefull
mlbID573262
playerID573262
playerNameMike Yastrzemski
posLF
startedTrue
startingPositionRF
teamATL
teamID2
game_date2026-06-17
sl_k_percent24.5
sl_bb_percent9.6
sl_woba0.298
sl_xwoba0.287
sl_xba0.225
sl_xslg0.314
sl_sweet_spot_percent30.1
sl_barrel_batted_rate3.8
sl_hard_hit_percent41.4
sl_exit_velocity_avg90.5
sl_launch_angle_avg15.9
sl_whiff_percent24.8
sl_swing_percent41.5
Mauricio Dubón (643289) · BATTER · CF · Team ATL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 232
All-history rows before 20260618: 232
System season_avg: 0.2620
Data season_avg (2026 season-to-date): 0.2559
Diff (system - data): 0.0061
System opponent_avg: 0.3330

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1860.0000.000Hitting_2B0.2330.000-0.2330.000
predicted_3B0.0290.0000.000Hitting_3B0.0390.000-0.0390.000
predicted_AB3.6573.0004.000Hitting_AB3.8064.000-0.806-1.000
predicted_AVG0.2520.3330.250Hitting_AVG0.2560.2500.0770.083
predicted_BB0.2711.0000.000Hitting_BB0.2671.0000.7330.000
predicted_CS-0.0000.000BaseRunning_CS0.0390.000-0.0390.000
predicted_H0.8501.0001.000Hitting_H0.9741.0000.0260.000
predicted_HR0.1100.0000.000Hitting_HR0.0691.000-0.069-1.000
predicted_OBP0.3190.5000.250Hitting_OBP0.3110.4000.1890.100
predicted_R0.4141.0000.000Hitting_R0.4181.0000.5820.000
predicted_RBI0.5200.0001.000Hitting_RBI0.5692.000-0.569-2.000
predicted_SLG0.4030.3330.250Hitting_SLG0.3921.000-0.059-0.667
predicted_SO0.6000.0001.000Hitting_SO0.6290.000-0.6290.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics3
Deboosted Metrics6
Better Metrics4
Worse Metrics5
Biggest Boostpredicted_BB: 0.2710 -> 1.0000 (boost 0.7290, better)
Biggest Deboostpredicted_AB: 3.6570 -> 3.0000 (deboost -0.6570, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend22020predicted_H: 0.8500 -> 0.9027 (boost 0.0527, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3206 -> 0.3021 (deboost -0.0185, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling74334predicted_SO: 0.5644 -> 1.0000 (boost 0.4356, worse)predicted_BB: 0.2716 -> 0.0000 (deboost -0.2716, worse)AB rounded to 4 (raw=3.66), rates preserved: AVG=0.249 HR/AB=0.032
5consistency_constraints10101-predicted_R: 0.3982 -> 0.0000 (deboost -0.3982, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context20202-predicted_SLG: 0.4035 -> 0.2500 (deboost -0.1535, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference52332predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final22020predicted_SLG: 0.2500 -> 0.4035 (boost 0.1535, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "643289",
  "player_name": "Mauricio Dubón",
  "position": "CF",
  "team": "ATL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.186,
        "predicted_3B": 0.029,
        "predicted_AB": 3.657,
        "predicted_AVG": 0.252,
        "predicted_BB": 0.271,
        "predicted_H": 0.85,
        "predicted_HR": 0.11,
        "predicted_OBP": 0.319,
        "predicted_R": 0.414,
        "predicted_RBI": 0.52,
        "predicted_SLG": 0.403,
        "predicted_SO": 0.6
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1569,
        "predicted_3B": 0.0239,
        "predicted_AB": 3.6418,
        "predicted_AVG": 0.2593,
        "predicted_BB": 0.2689,
        "predicted_H": 0.9027,
        "predicted_HBP": 0.019,
        "predicted_HR": 0.1151,
        "predicted_OBP": 0.3206,
        "predicted_R": 0.3917,
        "predicted_RBI": 0.5558,
        "predicted_SLG": 0.4069,
        "predicted_SO": 0.5701
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.186,
          "after": 0.1569,
          "delta": -0.0291,
          "percent_delta": -0.1565,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.029,
          "after": 0.0239,
          "delta": -0.0051,
          "percent_delta": -0.1759,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.657,
          "after": 3.6418,
          "delta": -0.0152,
          "percent_delta": -0.0042,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.252,
          "after": 0.2593,
          "delta": 0.0073,
          "percent_delta": 0.029,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.271,
          "after": 0.2689,
          "delta": -0.0021,
          "percent_delta": -0.0077,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.85,
          "after": 0.9027,
          "delta": 0.0527,
          "percent_delta": 0.062,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.11,
          "after": 0.1151,
          "delta": 0.0051,
          "percent_delta": 0.0464,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.319,
          "after": 0.3206,
          "delta": 0.0016,
          "percent_delta": 0.005,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.414,
          "after": 0.3917,
          "delta": -0.0223,
          "percent_delta": -0.0539,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.52,
          "after": 0.5558,
          "delta": 0.0358,
          "percent_delta": 0.0688,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.403,
          "after": 0.4069,
          "delta": 0.0039,
          "percent_delta": 0.0097,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.6,
          "after": 0.5701,
          "delta": -0.0299,
          "percent_delta": -0.0498,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.85,
          "after": 0.9027,
          "delta": 0.0527,
          "percent_delta": 0.062,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 70
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1569,
        "predicted_3B": 0.0239,
        "predicted_AB": 3.6418,
        "predicted_AVG": 0.2501,
        "predicted_BB": 0.2716,
        "predicted_H": 0.9106,
        "predicted_HBP": 0.019,
        "predicted_HR": 0.118,
        "predicted_OBP": 0.3021,
        "predicted_R": 0.3982,
        "predicted_RBI": 0.565,
        "predicted_SLG": 0.4035,
        "predicted_SO": 0.5644
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1569,
          "after": 0.1569,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0239,
          "after": 0.0239,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6418,
          "after": 3.6418,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2593,
          "after": 0.2501,
          "delta": -0.0092,
          "percent_delta": -0.0355,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2689,
          "after": 0.2716,
          "delta": 0.0027,
          "percent_delta": 0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9027,
          "after": 0.9106,
          "delta": 0.0079,
          "percent_delta": 0.0088,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.019,
          "after": 0.019,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1151,
          "after": 0.118,
          "delta": 0.0029,
          "percent_delta": 0.0252,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3206,
          "after": 0.3021,
          "delta": -0.0185,
          "percent_delta": -0.0577,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3917,
          "after": 0.3982,
          "delta": 0.0065,
          "percent_delta": 0.0166,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5558,
          "after": 0.565,
          "delta": 0.0092,
          "percent_delta": 0.0166,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4069,
          "after": 0.4035,
          "delta": -0.0034,
          "percent_delta": -0.0084,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.5701,
          "after": 0.5644,
          "delta": -0.0057,
          "percent_delta": -0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3206,
          "after": 0.3021,
          "delta": -0.0185,
          "percent_delta": -0.0577,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.66), rates preserved: AVG=0.249 HR/AB=0.032",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1569,
          "after": 0.0,
          "delta": -0.1569,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0239,
          "after": 0.0,
          "delta": -0.0239,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6418,
          "after": 4.0,
          "delta": 0.3582,
          "percent_delta": 0.0984,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2716,
          "after": 0.0,
          "delta": -0.2716,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9106,
          "after": 1.0,
          "delta": 0.0894,
          "percent_delta": 0.0982,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.019,
          "after": 0.0,
          "delta": -0.019,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.118,
          "after": 0.0,
          "delta": -0.118,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.565,
          "after": 1.0,
          "delta": 0.435,
          "percent_delta": 0.7699,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5644,
          "after": 1.0,
          "delta": 0.4356,
          "percent_delta": 0.7718,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 4,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.5644,
          "after": 1.0,
          "delta": 0.4356,
          "percent_delta": 0.7718,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.2716,
          "after": 0.0,
          "delta": -0.2716,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3982,
          "after": 0.0,
          "delta": -0.3982,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3982,
          "after": 0.0,
          "delta": -0.3982,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2501,
          "after": 0.25,
          "delta": -0.0001,
          "percent_delta": -0.0004,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3021,
          "after": 0.25,
          "delta": -0.0521,
          "percent_delta": -0.1725,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4035,
          "after": 0.25,
          "delta": -0.1535,
          "percent_delta": -0.3804,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4035,
          "after": 0.25,
          "delta": -0.1535,
          "percent_delta": -0.3804,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 2,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2501,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3021,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4035,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2501,
          "delta": 0.0001,
          "percent_delta": 0.0002,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3021,
          "delta": 0.0521,
          "percent_delta": 0.2084,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4035,
          "delta": 0.1535,
          "percent_delta": 0.614,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4035,
          "delta": 0.1535,
          "percent_delta": 0.614,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.186,
        "after": 0.0,
        "delta": -0.186,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.029,
        "after": 0.0,
        "delta": -0.029,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.657,
        "after": 3.0,
        "delta": -0.657,
        "percent_delta": -0.1797,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.252,
        "after": 0.2501,
        "delta": -0.0019,
        "percent_delta": -0.0075,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.271,
        "after": 1.0,
        "delta": 0.729,
        "percent_delta": 2.69,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.85,
        "after": 1.0,
        "delta": 0.15,
        "percent_delta": 0.1765,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.11,
        "after": 0.0,
        "delta": -0.11,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.319,
        "after": 0.3021,
        "delta": -0.0169,
        "percent_delta": -0.053,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.414,
        "after": 1.0,
        "delta": 0.586,
        "percent_delta": 1.4155,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.52,
        "after": 0.0,
        "delta": -0.52,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.403,
        "after": 0.4035,
        "delta": 0.0005,
        "percent_delta": 0.0012,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.6,
        "after": 0.0,
        "delta": -0.6,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 3,
      "deboosted_metrics": 6,
      "better_metrics": 4,
      "worse_metrics": 5,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.271,
        "after": 1.0,
        "delta": 0.729,
        "percent_delta": 2.69,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 3.657,
        "after": 3.0,
        "delta": -0.657,
        "percent_delta": -0.1797,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.186-
predicted_3B0.029-
predicted_AB3.657-
predicted_AVG0.252-
predicted_BB0.271-
predicted_H0.850-
predicted_HR0.110-
predicted_OBP0.319-
predicted_R0.414-
predicted_RBI0.520-
predicted_SLG0.403-
predicted_SO0.600-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.157-0.029
predicted_3B0.024-0.005
predicted_AB3.642-0.015
predicted_AVG0.2590.007
predicted_BB0.269-0.002
predicted_H0.9030.053
predicted_HBP0.019-
predicted_HR0.1150.005
predicted_OBP0.3210.002
predicted_R0.392-0.022
predicted_RBI0.5560.036
predicted_SLG0.4070.004
predicted_SO0.570-0.030
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1570.000
predicted_3B0.0240.000
predicted_AB3.6420.000
predicted_AVG0.250-0.009
predicted_BB0.2720.003
predicted_H0.9110.008
predicted_HBP0.0190.000
predicted_HR0.1180.003
predicted_OBP0.302-0.019
predicted_R0.3980.007
predicted_RBI0.5650.009
predicted_SLG0.404-0.003
predicted_SO0.564-0.006
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.66), rates preserved: AVG=0.249 HR/AB=0.032

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.157
predicted_3B0.000-0.024
predicted_AB4.0000.358
predicted_AVG0.250-0.000
predicted_BB0.000-0.272
predicted_H1.0000.089
predicted_HR0.000-0.118
predicted_OBP0.250-0.052
predicted_R0.000-0.398
predicted_RBI1.0000.435
predicted_SLG0.250-0.154
predicted_SO1.0000.436
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 70
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0005.0000.0000.0001.0004.0001.0001.0001.0000.29410.33330.47060.29410.05880.23530.05880.0588
last_100.2010-36.00010.0000.0000.0001.0005.0003.0003.0005.0000.27780.33330.36110.27780.02780.13890.08330.1389
season0.6070-256.00067.00013.0002.0007.00041.00029.00019.00042.0000.26170.31770.41020.26170.02730.16020.07420.1641
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1170
predicted_3B0.0170
predicted_AB3.6210
predicted_AVG0.2694
predicted_BB0.2660
predicted_H0.9750
predicted_HBP0.0190
predicted_HR0.1220
predicted_OBP0.3229
predicted_R0.3610
predicted_RBI0.6050
predicted_SLG0.4122
predicted_SO0.5290
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.18600.11700.1569model_form_blend
predicted_3B0.02900.01700.0239model_form_blend
predicted_AB3.65703.62103.6418model_form_blend
predicted_AVG0.25200.26940.2593model_form_blend
predicted_BB0.27100.26600.2689model_form_blend
predicted_H0.85000.97500.9027model_form_blend
predicted_HBP-0.01900.0190form_only
predicted_HR0.11000.12200.1151model_form_blend
predicted_OBP0.31900.32290.3206model_form_blend
predicted_R0.41400.36100.3917model_form_blend
predicted_RBI0.52000.60500.5558model_form_blend
predicted_SLG0.40300.41220.4069model_form_blend
predicted_SO0.60000.52900.5701model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date232
Season rows before report date232
Report year2026
Profile rows used70
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B0
3B0
HR0
R1
RBI0
BB1
SO0
SF0
HBP0
season_avg0.262

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB1
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R1
Hitting_RBI2
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB4
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedCF-SS
gameID20260617_SF@ATL_2
game_typefull
mlbID643289
playerID643289
playerNameMauricio Dubón
posSS
startedTrue
startingPositionCF
teamATL
teamID2
game_date2026-06-17
sl_k_percent15.2
sl_bb_percent6.9
sl_woba0.319
sl_xwoba0.322
sl_xba0.27
sl_xslg0.407
sl_sweet_spot_percent38.5
sl_barrel_batted_rate6.1
sl_hard_hit_percent28.6
sl_exit_velocity_avg86.6
sl_launch_angle_avg15.8
sl_whiff_percent17.1
sl_swing_percent51.7
Dominic Smith (642086) · BATTER · RF · Team ATL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 137
All-history rows before 20260618: 137
System season_avg: 0.2830
Data season_avg (2026 season-to-date): 0.3250
Diff (system - data): -0.0420
System opponent_avg: 0.2830
System season_avg diverges from 2026 season-to-date by -0.0420. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0730.0000.000Hitting_2B0.1170.000-0.1170.000
predicted_3B0.0180.0000.000Hitting_3B0.0070.000-0.0070.000
predicted_AB2.8913.0003.000Hitting_AB3.2120.000-0.2123.000
predicted_AVG0.2660.0000.333Hitting_AVG0.325--0.325-
predicted_BB0.1271.0000.000Hitting_BB0.1680.0000.8321.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.6300.0001.000Hitting_H1.0440.000-1.0440.000
predicted_HR0.0900.0000.000Hitting_HR0.1240.000-0.1240.000
predicted_OBP0.2900.2500.333Hitting_OBP0.3590.000-0.1090.250
predicted_R0.4180.0000.000Hitting_R0.5260.000-0.5260.000
predicted_RBI0.4000.0000.000Hitting_RBI0.6421.000-0.642-1.000
predicted_SLG0.3720.0000.333Hitting_SLG0.482--0.482-
predicted_SO0.4181.0000.000Hitting_SO0.4530.0000.5471.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics2
Worse Metrics9
Biggest Boostpredicted_BB: 0.1270 -> 1.0000 (boost 0.8730, better)
Biggest Deboostpredicted_H: 0.6300 -> 0.0000 (deboost -0.6300, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend42222predicted_AB: 2.8910 -> 2.9860 (boost 0.0950, better)predicted_AVG: 0.2660 -> 0.2561 (deboost -0.0099, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_AVG: 0.2561 -> 0.2300 (deboost -0.0261, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling61524predicted_H: 0.6868 -> 1.0000 (boost 0.3132, better)predicted_RBI: 0.4495 -> 0.0000 (deboost -0.4495, worse)AB rounded to 3 (raw=2.99), rates preserved: AVG=0.230 HR/AB=0.031
5consistency_constraints10101-predicted_R: 0.4071 -> 0.0000 (deboost -0.4071, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2300 -> 0.3330 (boost 0.1030, better)predicted_SLG: 0.3571 -> 0.3330 (deboost -0.0241, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference32112predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.3571 (boost 0.0241, better)predicted_AVG: 0.3330 -> 0.2300 (deboost -0.1030, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "642086",
  "player_name": "Dominic Smith",
  "position": "RF",
  "team": "ATL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.073,
        "predicted_3B": 0.018,
        "predicted_AB": 2.891,
        "predicted_AVG": 0.266,
        "predicted_BB": 0.127,
        "predicted_H": 0.63,
        "predicted_HR": 0.09,
        "predicted_OBP": 0.29,
        "predicted_R": 0.418,
        "predicted_RBI": 0.4,
        "predicted_SLG": 0.372,
        "predicted_SO": 0.418
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0689,
        "predicted_3B": 0.0156,
        "predicted_AB": 2.986,
        "predicted_AVG": 0.2561,
        "predicted_BB": 0.1526,
        "predicted_H": 0.6808,
        "predicted_HBP": 0.014,
        "predicted_HR": 0.0908,
        "predicted_OBP": 0.2867,
        "predicted_R": 0.4005,
        "predicted_RBI": 0.4422,
        "predicted_SLG": 0.3663,
        "predicted_SO": 0.418
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.073,
          "after": 0.0689,
          "delta": -0.0041,
          "percent_delta": -0.0562,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.018,
          "after": 0.0156,
          "delta": -0.0024,
          "percent_delta": -0.1333,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.891,
          "after": 2.986,
          "delta": 0.095,
          "percent_delta": 0.0329,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.266,
          "after": 0.2561,
          "delta": -0.0099,
          "percent_delta": -0.0372,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.127,
          "after": 0.1526,
          "delta": 0.0256,
          "percent_delta": 0.2016,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.63,
          "after": 0.6808,
          "delta": 0.0508,
          "percent_delta": 0.0806,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.09,
          "after": 0.0908,
          "delta": 0.0008,
          "percent_delta": 0.0089,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.29,
          "after": 0.2867,
          "delta": -0.0033,
          "percent_delta": -0.0114,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.418,
          "after": 0.4005,
          "delta": -0.0175,
          "percent_delta": -0.0419,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4,
          "after": 0.4422,
          "delta": 0.0422,
          "percent_delta": 0.1055,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.372,
          "after": 0.3663,
          "delta": -0.0057,
          "percent_delta": -0.0153,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.418,
          "after": 0.418,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 2,
        "deboosted_metrics": 2,
        "better_metrics": 2,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.891,
          "after": 2.986,
          "delta": 0.095,
          "percent_delta": 0.0329,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.266,
          "after": 0.2561,
          "delta": -0.0099,
          "percent_delta": -0.0372,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 55
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0689,
        "predicted_3B": 0.0156,
        "predicted_AB": 2.986,
        "predicted_AVG": 0.23,
        "predicted_BB": 0.1541,
        "predicted_H": 0.6868,
        "predicted_HBP": 0.014,
        "predicted_HR": 0.0931,
        "predicted_OBP": 0.2678,
        "predicted_R": 0.4071,
        "predicted_RBI": 0.4495,
        "predicted_SLG": 0.3571,
        "predicted_SO": 0.4138
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0689,
          "after": 0.0689,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0156,
          "after": 0.0156,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.986,
          "after": 2.986,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2561,
          "after": 0.23,
          "delta": -0.0261,
          "percent_delta": -0.1019,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1526,
          "after": 0.1541,
          "delta": 0.0015,
          "percent_delta": 0.0098,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6808,
          "after": 0.6868,
          "delta": 0.006,
          "percent_delta": 0.0088,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.014,
          "after": 0.014,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0908,
          "after": 0.0931,
          "delta": 0.0023,
          "percent_delta": 0.0253,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2867,
          "after": 0.2678,
          "delta": -0.0189,
          "percent_delta": -0.0659,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4005,
          "after": 0.4071,
          "delta": 0.0066,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4422,
          "after": 0.4495,
          "delta": 0.0073,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3663,
          "after": 0.3571,
          "delta": -0.0092,
          "percent_delta": -0.0251,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.418,
          "after": 0.4138,
          "delta": -0.0042,
          "percent_delta": -0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2561,
          "after": 0.23,
          "delta": -0.0261,
          "percent_delta": -0.1019,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.99), rates preserved: AVG=0.230 HR/AB=0.031",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0689,
          "after": 0.0,
          "delta": -0.0689,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0156,
          "after": 0.0,
          "delta": -0.0156,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.986,
          "after": 3.0,
          "delta": 0.014,
          "percent_delta": 0.0047,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.1541,
          "after": 0.0,
          "delta": -0.1541,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6868,
          "after": 1.0,
          "delta": 0.3132,
          "percent_delta": 0.456,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.014,
          "after": 0.0,
          "delta": -0.014,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0931,
          "after": 0.0,
          "delta": -0.0931,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4495,
          "after": 0.0,
          "delta": -0.4495,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.4138,
          "after": 0.0,
          "delta": -0.4138,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 1,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.6868,
          "after": 1.0,
          "delta": 0.3132,
          "percent_delta": 0.456,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4495,
          "after": 0.0,
          "delta": -0.4495,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4071,
          "after": 0.0,
          "delta": -0.4071,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4071,
          "after": 0.0,
          "delta": -0.4071,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.23,
          "after": 0.333,
          "delta": 0.103,
          "percent_delta": 0.4478,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2678,
          "after": 0.333,
          "delta": 0.0652,
          "percent_delta": 0.2435,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3571,
          "after": 0.333,
          "delta": -0.0241,
          "percent_delta": -0.0675,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.23,
          "after": 0.333,
          "delta": 0.103,
          "percent_delta": 0.4478,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3571,
          "after": 0.333,
          "delta": -0.0241,
          "percent_delta": -0.0675,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.23,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2678,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3571,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.23,
          "delta": -0.103,
          "percent_delta": -0.3093,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2678,
          "delta": -0.0652,
          "percent_delta": -0.1958,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3571,
          "delta": 0.0241,
          "percent_delta": 0.0723,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3571,
          "delta": 0.0241,
          "percent_delta": 0.0723,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.23,
          "delta": -0.103,
          "percent_delta": -0.3093,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.073,
        "after": 0.0,
        "delta": -0.073,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.018,
        "after": 0.0,
        "delta": -0.018,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.891,
        "after": 3.0,
        "delta": 0.109,
        "percent_delta": 0.0377,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.266,
        "after": 0.23,
        "delta": -0.036,
        "percent_delta": -0.1353,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.127,
        "after": 1.0,
        "delta": 0.873,
        "percent_delta": 6.874,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.63,
        "after": 0.0,
        "delta": -0.63,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.09,
        "after": 0.0,
        "delta": -0.09,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.29,
        "after": 0.2678,
        "delta": -0.0222,
        "percent_delta": -0.0766,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.418,
        "after": 0.0,
        "delta": -0.418,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.4,
        "after": 0.0,
        "delta": -0.4,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.372,
        "after": 0.3571,
        "delta": -0.0149,
        "percent_delta": -0.0401,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.418,
        "after": 1.0,
        "delta": 0.582,
        "percent_delta": 1.3923,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 2,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.127,
        "after": 1.0,
        "delta": 0.873,
        "percent_delta": 6.874,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.63,
        "after": 0.0,
        "delta": -0.63,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.073-
predicted_3B0.018-
predicted_AB2.891-
predicted_AVG0.266-
predicted_BB0.127-
predicted_H0.630-
predicted_HR0.090-
predicted_OBP0.290-
predicted_R0.418-
predicted_RBI0.400-
predicted_SLG0.372-
predicted_SO0.418-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.069-0.004
predicted_3B0.016-0.002
predicted_AB2.9860.095
predicted_AVG0.256-0.010
predicted_BB0.1530.026
predicted_H0.6810.051
predicted_HBP0.014-
predicted_HR0.0910.001
predicted_OBP0.287-0.003
predicted_R0.401-0.017
predicted_RBI0.4420.042
predicted_SLG0.366-0.006
predicted_SO0.4180.000
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0690.000
predicted_3B0.0160.000
predicted_AB2.9860.000
predicted_AVG0.230-0.026
predicted_BB0.1540.001
predicted_H0.6870.006
predicted_HBP0.0140.000
predicted_HR0.0930.002
predicted_OBP0.268-0.019
predicted_R0.4070.007
predicted_RBI0.4500.007
predicted_SLG0.357-0.009
predicted_SO0.414-0.004
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.99), rates preserved: AVG=0.230 HR/AB=0.031

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO0.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO0.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.069
predicted_3B0.000-0.016
predicted_AB3.0000.014
predicted_AVG0.3330.103
predicted_BB0.000-0.154
predicted_H1.0000.313
predicted_HR0.000-0.093
predicted_OBP0.3330.065
predicted_R0.000-0.407
predicted_RBI0.000-0.450
predicted_SLG0.333-0.024
predicted_SO0.000-0.414
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 55
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-15.0003.0000.0000.0000.0002.0001.0001.0001.0000.20000.23530.20000.20000.00000.13330.06670.0667
last_100.2010-33.0005.0000.0000.0001.0005.0003.0003.0003.0000.15150.21050.24240.15150.03030.15150.09090.0909
season0.6055-159.00045.0004.0001.0006.00029.00023.0007.00023.0000.28300.31180.43400.28300.03770.18240.04400.1447
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0630
predicted_3B0.0120
predicted_AB3.1250
predicted_AVG0.2417
predicted_BB0.1900
predicted_H0.7550
predicted_HBP0.0140
predicted_HR0.0920
predicted_OBP0.2818
predicted_R0.3750
predicted_RBI0.5040
predicted_SLG0.3580
predicted_SO0.4180
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.07300.06300.0689model_form_blend
predicted_3B0.01800.01200.0156model_form_blend
predicted_AB2.89103.12502.9860model_form_blend
predicted_AVG0.26600.24170.2561model_form_blend
predicted_BB0.12700.19000.1526model_form_blend
predicted_H0.63000.75500.6808model_form_blend
predicted_HBP-0.01400.0140form_only
predicted_HR0.09000.09200.0908model_form_blend
predicted_OBP0.29000.28180.2867model_form_blend
predicted_R0.41800.37500.4005model_form_blend
predicted_RBI0.40000.50400.4422model_form_blend
predicted_SLG0.37200.35800.3663model_form_blend
predicted_SO0.41800.41800.4180model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date137
Season rows before report date137
Report year2026
Profile rows used55
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO1
SF0
HBP0
season_avg0.283

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI1
Hitting_SAC0
Hitting_SF1
Hitting_SO0
Hitting_TB0
Hitting_battingOrder7
Hitting_substitutionOrder1
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedPH
gameID20260617_SF@ATL_2
game_typeph
mlbID642086
noteHit a sacrifice fly for Mateo in the 6th.
playerID642086
playerNameDominic Smith
posDH
startedFalse
startingPositionPH
teamATL
teamID2
game_date2026-06-17
sl_k_percent13.1
sl_bb_percent5.7
sl_woba0.326
sl_xwoba0.339
sl_xba0.284
sl_xslg0.448
sl_sweet_spot_percent35.9
sl_barrel_batted_rate7.1
sl_hard_hit_percent35.9
sl_exit_velocity_avg88.8
sl_launch_angle_avg14.9
sl_whiff_percent19.2
sl_swing_percent52.8
Martín Pérez (527048) · PITCHER · Starter · Team ATL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 15
All-history rows before 20260618: 15

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB1.4001.000-1.400-1.000
predicted_ER3.0003.0003.000Pitching_ER1.3331.0001.6672.000
predicted_H6.0006.0006.000Pitching_H2.9334.0003.0672.000
predicted_IP5.2005.2005.200Pitching_InningsPitched4.0405.1001.1600.100
predicted_SO8.0008.0008.000Pitching_SO3.4004.0004.6004.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectdeboosted
Changed Metrics2
Boosted Metrics0
Deboosted Metrics2
Better Metrics1
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_ER: 4.0000 -> 3.0000 (deboost -1.0000, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2pitcher_quality_guardrail20211-predicted_ER: 4.0000 -> 3.0000 (deboost -1.0000, better)Elite/strong starter guardrail capped a noisy simulation draw using season workload, ERA/WHIP, and weighted recent form.
3current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "527048",
  "player_name": "Martín Pérez",
  "position": "Starter",
  "team": "ATL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 4.0,
        "predicted_H": 6.0,
        "predicted_HR": 1.0,
        "predicted_IP": 5.6667,
        "predicted_SO": 8.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "pitcher_quality_guardrail",
      "description": "Elite/strong starter guardrail capped a noisy simulation draw using season workload, ERA/WHIP, and weighted recent form.",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 3.0,
        "predicted_H": 6.0,
        "predicted_HR": 1.0,
        "predicted_IP": 5.2,
        "predicted_SO": 8.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 6.0,
          "after": 6.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.6667,
          "after": 5.2,
          "delta": -0.4667,
          "percent_delta": -0.0824,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 8.0,
          "after": 8.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_ER",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 3,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 3.0,
        "predicted_H": 6.0,
        "predicted_HR": 1.0,
        "predicted_IP": 5.2,
        "predicted_R": 3.0,
        "predicted_SO": 8.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 6.0,
          "after": 6.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.2,
          "after": 5.2,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 8.0,
          "after": 8.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 4.0,
        "after": 3.0,
        "delta": -1.0,
        "percent_delta": -0.25,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 6.0,
        "after": 6.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 5.6667,
        "after": 5.2,
        "delta": -0.4667,
        "percent_delta": -0.0824,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 8.0,
        "after": 8.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 2,
      "boosted_metrics": 0,
      "deboosted_metrics": 2,
      "better_metrics": 1,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_ER",
        "before": 4.0,
        "after": 3.0,
        "delta": -1.0,
        "percent_delta": -0.25,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "deboosted"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER4.000-
predicted_H6.000-
predicted_HR1.000-
predicted_IP5.667-
predicted_SO8.000-
2. pitcher_quality_guardrail

Elite/strong starter guardrail capped a noisy simulation draw using season workload, ERA/WHIP, and weighted recent form.

MetricValueDelta vs Prev Step
predicted_BB0.0000.000
predicted_ER3.000-1.000
predicted_H6.0000.000
predicted_HR1.0000.000
predicted_IP5.200-0.467
predicted_SO8.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 14
Reference playing time: 5.667
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.45526.00011.00021.00010.00023.0002.0003.80771.19230.42310.80770.38460.88460.0769
last_100.351041.20015.00031.00015.00041.0005.0003.24001.10400.36000.74400.36000.98400.1200
season0.201462.00020.00044.00021.00051.0006.0002.90321.04840.32260.70970.33870.82260.0968
Weighted Prediction From Real Data
MetricValue
predicted_BB1.8040
predicted_ER2.0340
predicted_ERA3.7124
predicted_H4.0450
predicted_HR0.5380
predicted_IP5.0000
predicted_SO4.5110
predicted_WHIP1.1865
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00001.80400.9720model_form_blend
predicted_ER4.00002.03402.9407model_form_blend
predicted_ERA-3.71243.7124form_only
predicted_H6.00004.04504.9466model_form_blend
predicted_HR1.00000.53800.7511model_form_blend
predicted_IP5.20005.00005.1000model_form_blend
predicted_SO8.00004.51106.1201model_form_blend
predicted_WHIP-1.18651.1865form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date15
Season rows before report date15
Report year2026
Profile rows used14
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP5.2
H6
R3
ER3
BB0
SO8
HR1
BF23
Pitches101

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced20
Pitching_ER1
Pitching_ERA2.90
Pitching_Flyouts0
Pitching_Groundouts9
Pitching_H4
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched5.1
Pitching_Pitches71
Pitching_R1
Pitching_SO4
Pitching_Strikes43
Pitching_Wild Pitch0
Pitching_decisionW
Pitching_pitchingOrder1
allPositionsPlayedP
gameID20260613_ATL@NYM
game_typefull
mlbID527048
playerID527048
playerNameMartín Pérez
posP
startedTrue
startingPositionP
teamATL
teamID2
game_date2026-06-13
sl_k_percent20.8
sl_bb_percent8.6
sl_woba0.28
sl_xwoba0.314
sl_sweet_spot_percent36.3
sl_barrel_batted_rate7.1
sl_hard_hit_percent38.0
sl_whiff_percent22.5
sl_swing_percent43.6
sl_avg_best_speed77.038395714
sl_avg_hyper_speed94.021039641
Dylan Lee (669276) · PITCHER · Middle Reliever · Team ATL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 33
All-history rows before 20260618: 33

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB2.0002.0002.000Pitching_BB0.1520.0001.8482.000
predicted_ER0.0000.0000.000Pitching_ER0.1210.000-0.1210.000
predicted_H1.0001.0001.000Pitching_H0.4551.0000.5450.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.8610.2000.1390.800
predicted_SO3.0003.0003.000Pitching_SO1.2121.0001.7882.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "669276",
  "player_name": "Dylan Lee",
  "position": "Middle Reliever",
  "team": "ATL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 3.0,
        "after": 3.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB2.000-
predicted_ER0.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO3.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 33
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.0000.0001.0002.0006.0000.0000.00000.75000.00000.25000.50001.50000.0000
last_100.35109.0002.0005.0003.00012.0001.0002.00000.88890.22220.55560.33331.33330.1111
season0.203331.2004.00015.0005.00040.0001.0001.13680.63160.12630.47370.15791.26320.0316
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3380
predicted_ER0.2560
predicted_ERA2.5133
predicted_H0.6000
predicted_HR0.0820
predicted_IP1.0000
predicted_SO1.0920
predicted_WHIP1.0240
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB2.00000.33801.2307model_form_blend
predicted_ER0.00000.25600.1185model_form_blend
predicted_ERA-2.51332.5133form_only
predicted_H1.00000.60000.8149model_form_blend
predicted_HR0.00000.08200.0380model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO3.00001.09202.1168model_form_blend
predicted_WHIP-1.02401.0240form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date33
Season rows before report date33
Report year2026
Profile rows used33
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H1
R0
ER0
BB2
SO3
HR0
BF6
Pitches29

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA1.14
Pitching_Flyouts1
Pitching_Groundouts0
Pitching_H1
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners1
Pitching_Inherited Runners Scored1
Pitching_InningsPitched0.2
Pitching_Pitches7
Pitching_R0
Pitching_SO1
Pitching_Strikes5
Pitching_Wild Pitch0
Pitching_decisionH
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260613_ATL@NYM
game_typefull
mlbID669276
playerID669276
playerNameDylan Lee
posP
startedFalse
startingPositionP
teamATL
teamID2
game_date2026-06-13
sl_k_percent34.8
sl_bb_percent4.3
sl_woba0.182
sl_xwoba0.212
sl_sweet_spot_percent34.3
sl_barrel_batted_rate4.3
sl_hard_hit_percent32.9
sl_whiff_percent38.2
sl_swing_percent53.8
sl_avg_best_speed76.405903235
sl_avg_hyper_speed92.915306029
Raisel Iglesias (628452) · PITCHER · Middle Reliever · Team ATL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 22
All-history rows before 20260618: 22

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.2271.000-0.227-1.000
predicted_ER0.0000.0000.000Pitching_ER0.1360.000-0.1360.000
predicted_H0.0000.0000.000Pitching_H0.8181.000-0.818-1.000
predicted_IP1.0001.0001.000Pitching_InningsPitched1.0181.000-0.0180.000
predicted_SO1.0001.0001.000Pitching_SO1.2271.000-0.2270.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "628452",
  "player_name": "Raisel Iglesias",
  "position": "Middle Reliever",
  "team": "ATL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 22
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.2001.0006.0002.0006.0001.0001.58821.41180.17651.05880.35291.05880.1765
last_100.351010.2003.00012.0003.00012.0001.0002.53121.40620.28121.12500.28121.12500.0938
season0.202223.1003.00018.0005.00027.0001.0001.15710.98570.12860.77140.21431.15710.0429
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3330
predicted_ER0.3580
predicted_ERA3.2210
predicted_H0.9980
predicted_HR0.1340
predicted_IP1.0000
predicted_SO1.0170
predicted_WHIP1.3311
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.33300.1434model_form_blend
predicted_ER0.00000.35800.1542model_form_blend
predicted_ERA-3.22103.2210form_only
predicted_H0.00000.99800.4299model_form_blend
predicted_HR0.00000.13400.0577model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO1.00001.01701.0073model_form_blend
predicted_WHIP-1.33111.3311form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date22
Season rows before report date22
Report year2026
Profile rows used22
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB0
SO1
HR0
BF3
Pitches18

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER0
Pitching_ERA1.16
Pitching_Flyouts0
Pitching_Groundouts1
Pitching_H1
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches16
Pitching_R0
Pitching_SO1
Pitching_Strikes9
Pitching_Wild Pitch0
Pitching_decisionS
Pitching_pitchingOrder5
allPositionsPlayedP
gameID20260613_ATL@NYM
game_typefull
mlbID628452
playerID628452
playerNameRaisel Iglesias
posP
startedFalse
startingPositionP
teamATL
teamID2
game_date2026-06-13
sl_k_percent30.3
sl_bb_percent5.6
sl_woba0.25
sl_xwoba0.238
sl_sweet_spot_percent26.3
sl_barrel_batted_rate5.4
sl_hard_hit_percent29.8
sl_whiff_percent32.6
sl_swing_percent53.6
sl_avg_best_speed77.402738929
sl_avg_hyper_speed92.533713393
Robert Suarez (663158) · PITCHER · Middle Reliever · Team ATL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 30
All-history rows before 20260618: 30

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.1670.000-0.1670.000
predicted_ER0.0000.0000.000Pitching_ER0.0670.000-0.0670.000
predicted_H1.0001.0001.000Pitching_H0.6330.0000.3671.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.9831.0000.0170.000
predicted_SO1.0001.0001.000Pitching_SO0.8671.0000.1330.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "663158",
  "player_name": "Robert Suarez",
  "position": "Middle Reliever",
  "team": "ATL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 30
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.1000.0003.0000.0004.0000.0000.00000.56250.00000.56250.00000.75000.0000
last_100.351010.1001.0006.0000.0007.0001.0000.87100.58060.09680.58060.00000.67740.0968
season0.203030.2002.00019.0005.00026.0001.0000.58700.78260.06520.61960.16300.84780.0326
Weighted Prediction From Real Data
MetricValue
predicted_BB0.1820
predicted_ER0.2520
predicted_ERA2.2646
predicted_H0.7580
predicted_HR0.0880
predicted_IP1.0000
predicted_SO0.8310
predicted_WHIP0.9395
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.18200.0836model_form_blend
predicted_ER0.00000.25200.1158model_form_blend
predicted_ERA-2.26462.2646form_only
predicted_H1.00000.75800.8888model_form_blend
predicted_HR0.00000.08800.0404model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO1.00000.83100.9223model_form_blend
predicted_WHIP-0.93950.9395form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date30
Season rows before report date30
Report year2026
Profile rows used30
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H1
R0
ER0
BB0
SO1
HR0
BF4
Pitches16

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA0.59
Pitching_Flyouts0
Pitching_Groundouts1
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches14
Pitching_R0
Pitching_SO1
Pitching_Strikes12
Pitching_Wild Pitch0
Pitching_decisionH
Pitching_pitchingOrder4
allPositionsPlayedP
gameID20260613_ATL@NYM
game_typefull
mlbID663158
playerID663158
playerNameRobert Suarez
posP
startedFalse
startingPositionP
teamATL
teamID2
game_date2026-06-13
sl_k_percent22.8
sl_bb_percent4.4
sl_woba0.195
sl_xwoba0.271
sl_sweet_spot_percent32.9
sl_barrel_batted_rate3.7
sl_hard_hit_percent30.5
sl_whiff_percent24.8
sl_swing_percent54.3
sl_avg_best_speed71.444455
sl_avg_hyper_speed92.602231375
Didier Fuentes (800311) · PITCHER · Middle Reliever · Team ATL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 20
All-history rows before 20260618: 20

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.4500.000-0.4500.000
predicted_ER1.0001.0001.000Pitching_ER0.3500.0000.6501.000
predicted_H1.0001.0001.000Pitching_H1.0000.0000.0001.000
predicted_IP0.1000.1000.100Pitching_InningsPitched1.2951.000-1.195-0.900
predicted_SO1.0001.0001.000Pitching_SO1.6503.000-0.650-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics2
Boosted Metrics1
Deboosted Metrics1
Better Metrics0
Worse Metrics2
Biggest Boostpredicted_ER: 0.0000 -> 1.0000 (boost 1.0000, worse)
Biggest Deboostpredicted_IP: 0.3333 -> 0.1000 (deboost -0.2333, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2pitcher_quality_run_redistribution21102predicted_ER: 0.0000 -> 1.0000 (boost 1.0000, worse)predicted_IP: 0.3333 -> 0.1000 (deboost -0.2333, worse)Runs moved off a protected strong starter and assigned to bullpen exposure to keep team totals coherent.
3current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "800311",
  "player_name": "Didier Fuentes",
  "position": "Middle Reliever",
  "team": "ATL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.3333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "pitcher_quality_run_redistribution",
      "description": "Runs moved off a protected strong starter and assigned to bullpen exposure to keep team totals coherent.",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.1,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 0.3333,
          "after": 0.1,
          "delta": -0.2333,
          "percent_delta": -0.7,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 0.3333,
          "after": 0.1,
          "delta": -0.2333,
          "percent_delta": -0.7,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 3,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.1,
        "predicted_R": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 0.1,
          "after": 0.1,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 1.0,
        "delta": 1.0,
        "percent_delta": null,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 0.3333,
        "after": 0.1,
        "delta": -0.2333,
        "percent_delta": -0.7,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 2,
      "boosted_metrics": 1,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 2,
      "biggest_boost": {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 1.0,
        "delta": 1.0,
        "percent_delta": null,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 0.3333,
        "after": 0.1,
        "delta": -0.2333,
        "percent_delta": -0.7,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP0.333-
predicted_SO1.000-
2. pitcher_quality_run_redistribution

Runs moved off a protected strong starter and assigned to bullpen exposure to keep team totals coherent.

MetricValueDelta vs Prev Step
predicted_BB0.0000.000
predicted_ER1.0001.000
predicted_H1.0000.000
predicted_HR0.0000.000
predicted_IP0.100-0.233
predicted_SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 20
Reference playing time: 0.333
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.1000.0004.0000.0006.0000.0000.00000.75000.00000.75000.00001.12500.0000
last_100.35109.2001.0009.0002.00011.0000.0000.93101.13790.10350.93100.20691.13790.0000
season0.202028.0007.00020.0009.00033.0001.0002.25001.03570.25000.71430.32141.17860.0357
Weighted Prediction From Real Data
MetricValue
predicted_BB0.1750
predicted_ER0.2030
predicted_ERA2.5431
predicted_H0.6370
predicted_HR0.0520
predicted_IP0.2000
predicted_SO0.7510
predicted_WHIP1.1296
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.17500.0787model_form_blend
predicted_ER0.00000.20300.0913model_form_blend
predicted_ERA-2.54312.5431form_only
predicted_H1.00000.63700.8367model_form_blend
predicted_HR0.00000.05200.0234model_form_blend
predicted_IP0.10000.20000.1000model_form_blend
predicted_SO1.00000.75100.8880model_form_blend
predicted_WHIP-1.12961.1296form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date20
Season rows before report date20
Report year2026
Profile rows used20
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP0.1
H1
R1
ER1
BB0
SO1
HR0
BF2
Pitches17

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA2.25
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches13
Pitching_R0
Pitching_SO3
Pitching_Strikes9
Pitching_Wild Pitch0
Pitching_decisionH
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260613_ATL@NYM
game_typefull
mlbID800311
playerID800311
playerNameDidier Fuentes
posP
startedFalse
startingPositionP
teamATL
teamID2
game_date2026-06-13
sl_k_percent29.2
sl_bb_percent8.0
sl_woba0.25
sl_xwoba0.263
sl_sweet_spot_percent26.1
sl_barrel_batted_rate4.4
sl_hard_hit_percent31.9
sl_whiff_percent28.0
sl_swing_percent49.6
sl_avg_best_speed78.794589118
sl_avg_hyper_speed93.06628209

20260618_STL@KC

Prediction Method: enhanced_ml_savant_pitcher_quality
Team Recent Window (Home): 65 games
Team Recent Window (Away): 61 games
Team Recent Period: Latest 10 games from dataset
Enhanced Prediction Target: {"away_runs": 4, "home_runs": 3, "confidence": 0.546576, "home_win_probability": 0.45342400000000005, "away_win_probability": 0.546576, "predicted_score_text": "STL 4 - 3 KC", "embedded_savant_score_adjustment": {"applied": true, "source": "all_players_stats.csv embedded temporal Savant features", "feature_contract": {"training_grain": "one player-game row after collapsing granular at-bat rows", "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game", "hitter_signals": ["xwoba", "xba", "xslg", "barrel_batted_rate", "hard_hit_percent", "bat_speed", "launch_quality", "walk_rate", "strikeout_rate"], "pitcher_signals": ["xwoba_allowed", "barrel_allowed", "hard_hit_allowed", "whiff_rate", "command_score", "movement_score", "faced_est_woba", "faced_strikeout_rate"]}, "away": {"team": "STL", "original_runs": 4, "run_delta": 0.3038, "adjusted_runs": 4, "lineup": {"players_used": 9, "total_weight": 33.0, "quality": 0.3570963446438524, "contact": 0.5879847236029635, "power": 0.42000760300414425, "discipline": 0.07358660295241323, "xwoba": 0.3398787878787879, "recent_xwoba": 0.3398787878787879, "barrel": 8.00909090909091, "ab_hard_contact": -0.10852326459244555, "ab_bat_speed": 70.89874003553597, "ab_strikeout_rate": 0.20505077051422863, "available_players": 7, "top_players": [{"player_id": "676475", "player_name": "Alec Burleson", "position": "1B", "weight": 4.0, "quality": 1.307394932543869, "contact": 1.5037110813689576, "power": 1.456846188404678, "discipline": 0.3120108287217327, "xwoba": 0.39, "recent_xwoba": 0.39, "barrel": 11.5, "ab_hard_contact": 1.4454951966649892, "ab_bat_speed": 71.2597854030501, "ab_strikeout_rate": 0.15980392156862747, "available": 1.0}, {"player_id": "691023", "player_name": "Jordan Walker", "position": "RF", "weight": 4.0, "quality": 1.1238904446019644, "contact": 1.2768949399123755, "power": 1.6604297076830754, "discipline": -0.567078340279201, "xwoba": 0.37, "recent_xwoba": 0.37, "barrel": 14.1, "ab_hard_contact": 1.2036417727091187, "ab_bat_speed": 77.65222766884531, "ab_strikeout_rate": 0.25653594771241833, "available": 1.0}, {"player_id": "802139", "player_name": "JJ Wetherholt", "position": "2B", "weight": 4.0, "quality": 0.5750139653300903, "contact": 0.7429160935071464, "power": 0.4422965262103176, "discipline": 0.53434556261529, "xwoba": 0.354, "recent_xwoba": 0.354, "barrel": 7.5, "ab_hard_contact": 0.35983528611111343, "ab_bat_speed": 70.76903297682709, "ab_strikeout_rate": 0.18725490196078431, "available": 1.0}, {"player_id": "671056", "player_name": "Iván Herrera", "position": "DH", "weight": 4.0, "quality": 0.6116828392584406, "contact": 0.9015695312132312, "power": 0.23485652304853735, "discipline": 0.8795829820585921, "xwoba": 0.369, "recent_xwoba": 0.369, "barrel": 7.0, "ab_hard_contact": 1.1314161752564633, "ab_bat_speed": 72.79067895299146, "ab_strikeout_rate": 0.1825174825174825, "available": 1.0}, {"player_id": "665877", "player_name": "José Fermín", "position": "CF", "weight": 3.0, "quality": -0.2649669669805066, "contact": -0.7962614466422462, "power": -1.2245828315765896, "discipline": 0.37548141695702697, "xwoba": 0.264, "recent_xwoba": 0.264, "barrel": 1.2, "ab_hard_contact": -1.2748947267698985, "ab_bat_speed": 65.39455555555556, "ab_strikeout_rate": 0.19333333333333333, "available": 1.0}]}, "opposing_starter": {"available": true, "player_id": "702070", "player_name": "Noah Cameron", "quality": -0.20405674534838358, "contact": -0.3086105985234922, "command": 0.05299999999999985, "movement": -0.5782112579420529, "xwoba": 0.32, "whiff": 23.9, "faced_est_woba": 0.267543125, "faced_launch_speed": 83.82962962962962, "faced_strikeout_rate": 0.23125, "faced_run_exp": 0.007916194341372912}}, "home": {"team": "KC", "original_runs": 3, "run_delta": 0.4548, "adjusted_runs": 3, "lineup": {"players_used": 9, "total_weight": 30.0, "quality": 0.16624039223487783, "contact": 0.12645704152830184, "power": 0.24271981504558252, "discipline": 0.01248222578958172, "xwoba": 0.31670000000000004, "recent_xwoba": 0.31670000000000004, "barrel": 9.139999999999999, "ab_hard_contact": 0.12972963424498005, "ab_bat_speed": 71.52244992632572, "ab_strikeout_rate": 0.23341347688173084, "available_players": 9, "top_players": [{"player_id": "677951", "player_name": "Bobby Witt Jr.", "position": "SS", "weight": 4.0, "quality": 1.3898873957075368, "contact": 1.7059225749559086, "power": 1.3960832807047787, "discipline": 0.41155725469953125, "xwoba": 0.387, "recent_xwoba": 0.387, "barrel": 11.8, "ab_hard_contact": 1.640522756952706, "ab_bat_speed": 72.66099828532236, "ab_strikeout_rate": 0.1765432098765432, "available": 1.0}, {"player_id": "695506", "player_name": "Jac Caglianone", "position": "1B", "weight": 3.0, "quality": 0.7263057692061335, "contact": 0.980750115068152, "power": 1.3636671178998407, "discipline": -0.5600866102538575, "xwoba": 0.356, "recent_xwoba": 0.356, "barrel": 14.2, "ab_hard_contact": 0.49277092942537754, "ab_bat_speed": 75.01769517330742, "ab_strikeout_rate": 0.31411564625850336, "available": 1.0}, {"player_id": "686555", "player_name": "Isaac Collins", "position": "LF", "weight": 3.0, "quality": -0.1778530199446606, "contact": -0.24696597415547375, "power": -0.47237876832982345, "discipline": 0.3944576074332174, "xwoba": 0.308, "recent_xwoba": 0.308, "barrel": 6.8, "ab_hard_contact": -0.0711944142155232, "ab_bat_speed": 71.07328395061728, "ab_strikeout_rate": 0.27999999999999997, "available": 1.0}, {"player_id": "521692", "player_name": "Salvador Perez", "position": "C", "weight": 4.0, "quality": -0.2426593623056289, "contact": -0.4512410189865688, "power": -0.08396955002636533, "discipline": -0.5306660189404092, "xwoba": 0.282, "recent_xwoba": 0.282, "barrel": 7.8, "ab_hard_contact": -0.23062909576540688, "ab_bat_speed": 70.49782451923078, "ab_strikeout_rate": 0.21298076923076922, "available": 1.0}, {"player_id": "695600", "player_name": "Carter Jensen", "position": "DH", "weight": 4.0, "quality": -0.250669003994217, "contact": -0.5097082969823828, "power": 0.05140174889282134, "discipline": -0.4316478347436534, "xwoba": 0.282, "recent_xwoba": 0.282, "barrel": 8.9, "ab_hard_contact": -0.3504412126197644, "ab_bat_speed": 72.7519387755102, "ab_strikeout_rate": 0.3064625850340136, "available": 1.0}]}, "opposing_starter": {"available": true, "player_id": "669461", "player_name": "Matthew Liberatore", "quality": -0.7153251454214273, "contact": -1.2454630043774606, "command": -0.156857142857143, "movement": -0.29242507879834484, "xwoba": 0.359, "whiff": 22.5, "faced_est_woba": 0.267543125, "faced_launch_speed": 83.82962962962962, "faced_strikeout_rate": 0.23125, "faced_run_exp": 0.007916194341372912}}}, "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Production confidence governor cap enforced.", "pre_simulation_target": {"away_runs": 4, "home_runs": 3, "predicted_score_text": "STL 4 - 3 KC", "confidence": 0.546576, "source": "enhanced_prediction_before_inning_simulation"}, "score_source": "enhanced_prediction.pre_simulation_target", "final_prediction_synced": true, "final_prediction_source": "pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "simulation_score_matches_prediction": false, "simulation_reconciliation": {"pre_simulation_score": {"away_runs": 4, "home_runs": 3, "score_text": "STL 4 - 3 KC", "winner": "STL"}, "final_simulation_score": {"away_runs": 6, "home_runs": 1, "score_text": "STL 6 - 1 KC", "winner": "STL"}, "winner_flipped_by_simulation": false, "away_run_delta": 2, "home_run_delta": -2, "total_run_delta": 0, "score_source": "enhanced_prediction.pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "final_prediction_source": "pre_simulation_target"}}
Factors Considered: Historical team performance, Season-to-date run differential, Recent form (latest 10 games), Head-to-head matchup history, Player-level statistics, Baseball Savant hitter xwOBA/xBA/xSLG/contact quality, Baseball Savant pitcher xwOBA/contact/whiff quality, Recent 10-game performance trends, Pitcher recent form analysis, Team hitting/pitching streaks, Low-score probability modeling, Environmental factors, Home field advantage, Game timing factors, Seasonal adjustments, Machine learning models

Game-Level Prediction Audit

LayerScoreWinnerConfidenceSource or usageSynced or matches
Shipped predictionSTL 4 - 3 KCSTL0.547enhanced_prediction.pre_simulation_targetTrue
Simulation drawSTL 6 - 1 KCSTL-advisory_box_score_drawFalse

The shipped score is the pre-simulation model target. The inning simulation is a separate box-score realization used for player lines and stress testing.

Full Prediction Process

Process LayerWhat It DoesStored FieldObserved Value
1. Historical modelStarts from trained game model output.score_evolution.steps[historical_ml]-
2. Variance layerApplies bounded game variance before enhanced corrections.score_evolution.steps[variance_applied]-
3. Recent/team formUses latest team form, recent scoring, prevention, and streak state.enhanced_prediction_analysis.recent_formTrue
4. Season qualityUses season run differential and record quality guardrails.season_run_differential_adjustment, season_quality_guardrailTrue
5. Savant hittersApplies lineup-level Statcast xwOBA, xBA, xSLG, barrel, hard-hit, sweet-spot, EV, launch-angle, whiff, K and BB quality.savant_batter_quality_adjustmentTrue
6. Savant pitchersApplies starter run prevention, strikeout, walk, HR and regression factors from xwOBA, wOBA, contact quality and whiff/command.savant_pitcher_quality_adjustmentTrue
7. Low-score analysisControls unrealistic totals and preserves the pre-sync low-score expected total.low_score_analysis9.9000
8. Probability/governorsApplies win probability calibration, matchup guardrails, margin governor and confidence governor.win_probability_calibration, margin_governor, confidence_governor0.5466
9. Simulation reconciliationKeeps final shipped score and simulation box score auditable side by side.simulation_reconciliationadvisory_box_score_draw
10. Score evolution rendered6 stored score steps are rendered below.game.score_evolution.stepstrue

Score Evolution Steps

StepLayerAway RunsHome RunsConfidenceDescription
1historical_ml5.7955.786-Base ML historical model prediction
2variance_applied66-Random variance applied (0.9-1.1)
3enhanced_prediction430.5466Enhanced ML with recent form, H2H, low-score analysis
4embedded_savant_run_environment43-Target score adjusted by temporal Savant lineup quality versus opposing starter quality
5capped_target43-Capped at max 12 realistic runs
6simulation_result61-Final inning-by-inning simulation result

Governors, Guardrails, and Reconciliation

Low Score Analysis
{
  "low_score_probability": 0.4031488833746898,
  "base_low_score_probability": 0.4160463192721257,
  "low_score_signal_threshold": 0.5,
  "low_score_signal_strength": -0.012897435897435916,
  "confidence": 0.6154999999999999,
  "factors": {
    "environmental": 0.969,
    "pitcher_form": 1.0,
    "team_form": 1.0,
    "situational": 1.0,
    "combined": 0.969
  },
  "prediction": "normal_scoring",
  "expected_total_runs": 7,
  "pre_simulation_expected_total_runs": 9.9,
  "low_score_model_expected_total_runs": 9.9,
  "final_simulation_total_runs": 7,
  "score_source": "enhanced_prediction.pre_simulation_target"
}
Win Probability Calibration
{
  "method": "historical_slate_bin_shrinkage",
  "sample_size": 174,
  "near_bucket_sample_size": 174,
  "medium_bucket_sample_size": 220,
  "wide_bucket_sample_size": 229,
  "global_sample_size": 242,
  "bucket_scope": "near_0.05",
  "sparse_bucket": false,
  "empirical_hit_rate": 0.5805,
  "bayesian_hit_rate": 0.5729,
  "sample_weight": 0.6,
  "prior_strength": 18.0,
  "reliability": 0.9062,
  "confidence_cap": 0.78,
  "raw_pick_probability": 0.52,
  "calibrated_pick_probability": 0.5466,
  "predicted_side": "away"
}
Season Run Differential Adjustment
{
  "applied": true,
  "home": {
    "team": "KC",
    "games": 75,
    "wins": 30,
    "losses": 45,
    "win_pct": 0.4,
    "runs_scored": 301,
    "runs_allowed": 352,
    "run_differential": -51,
    "run_differential_per_game": -0.68,
    "available": true
  },
  "away": {
    "team": "STL",
    "games": 72,
    "wins": 40,
    "losses": 32,
    "win_pct": 0.5555555555555556,
    "runs_scored": 326,
    "runs_allowed": 315,
    "run_differential": 11,
    "run_differential_per_game": 0.1527777777777778,
    "available": true
  },
  "run_differential_edge_per_game": -0.8328,
  "win_pct_edge": -0.1556,
  "quality_edge": -1.0661,
  "margin_adjustment": -0.4478,
  "reason": "season-to-date run differential and record moved the score toward the stronger team",
  "adjusted_score": {
    "away_runs": 3.21,
    "home_runs": 2.975,
    "home_win_probability": 0.48
  }
}
Matchup Recency Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "predicted_team": "STL",
    "guardrail_predicted_team": "STL",
    "guardrail_opponent_team": null,
    "output_pre_simulation_winner": "STL",
    "output_opponent_team": "KC",
    "final_score_winner": "STL",
    "pre_simulation_winner": "STL",
    "winner_flipped_by_simulation": false
  },
  "final_prediction_sync": {
    "pre_simulation_score": {
      "away_runs": 4,
      "home_runs": 3,
      "score_text": "STL 4 - 3 KC",
      "winner": "STL"
    },
    "final_simulation_score": {
      "away_runs": 6,
      "home_runs": 1,
      "score_text": "STL 6 - 1 KC",
      "winner": "STL"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": 2,
    "home_run_delta": -2,
    "total_run_delta": 0,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}
Season Quality Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "home": {
      "team": "KC",
      "games": 75,
      "wins": 30,
      "losses": 45,
      "win_pct": 0.4,
      "runs_scored": 301,
      "runs_allowed": 352,
      "run_differential": -51,
      "run_differential_per_game": -0.68,
      "available": true
    },
    "away": {
      "team": "STL",
      "games": 72,
      "wins": 40,
      "losses": 32,
      "win_pct": 0.5555555555555556,
      "runs_scored": 326,
      "runs_allowed": 315,
      "run_differential": 11,
      "run_differential_per_game": 0.1527777777777778,
      "available": true
    }
  }
}
Margin Governor
{
  "applied": false,
  "raw_margin": -0.2353,
  "final_margin": -0.2353,
  "margin_cap": 2.0,
  "season_quality_edge": 1.0661,
  "reason": "raw target margin within supported range"
}
Confidence Governor
{
  "applied": false,
  "raw_confidence": 0.524085,
  "final_confidence": 0.524085,
  "confidence_cap": 0.66,
  "score_gap": 0.2353,
  "calibration_sample_size": 174,
  "calibration_empirical_hit_rate": 0.5805,
  "calibration_bayesian_hit_rate": 0.5729,
  "calibration_sparse_bucket": false,
  "season_quality_edge": 1.0661,
  "reasons": [
    "unvalidated probabilities are capped for production display",
    "projected score gap is close",
    "local calibration sample has at least 30 games",
    "local calibration sample has at least 60 games",
    "win-probability calibration cap enforced"
  ]
}
Simulation Reconciliation
{
  "pre_simulation_score": {
    "away_runs": 4,
    "home_runs": 3,
    "score_text": "STL 4 - 3 KC",
    "winner": "STL"
  },
  "final_simulation_score": {
    "away_runs": 6,
    "home_runs": 1,
    "score_text": "STL 6 - 1 KC",
    "winner": "STL"
  },
  "winner_flipped_by_simulation": false,
  "away_run_delta": 2,
  "home_run_delta": -2,
  "total_run_delta": 0,
  "score_source": "enhanced_prediction.pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "final_prediction_source": "pre_simulation_target"
}
Enhanced Prediction Target
{
  "away_runs": 4,
  "home_runs": 3,
  "confidence": 0.546576,
  "home_win_probability": 0.45342400000000005,
  "away_win_probability": 0.546576,
  "predicted_score_text": "STL 4 - 3 KC",
  "embedded_savant_score_adjustment": {
    "applied": true,
    "source": "all_players_stats.csv embedded temporal Savant features",
    "feature_contract": {
      "training_grain": "one player-game row after collapsing granular at-bat rows",
      "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game",
      "hitter_signals": [
        "xwoba",
        "xba",
        "xslg",
        "barrel_batted_rate",
        "hard_hit_percent",
        "bat_speed",
        "launch_quality",
        "walk_rate",
        "strikeout_rate"
      ],
      "pitcher_signals": [
        "xwoba_allowed",
        "barrel_allowed",
        "hard_hit_allowed",
        "whiff_rate",
        "command_score",
        "movement_score",
        "faced_est_woba",
        "faced_strikeout_rate"
      ]
    },
    "away": {
      "team": "STL",
      "original_runs": 4,
      "run_delta": 0.3038,
      "adjusted_runs": 4,
      "lineup": {
        "players_used": 9,
        "total_weight": 33.0,
        "quality": 0.3570963446438524,
        "contact": 0.5879847236029635,
        "power": 0.42000760300414425,
        "discipline": 0.07358660295241323,
        "xwoba": 0.3398787878787879,
        "recent_xwoba": 0.3398787878787879,
        "barrel": 8.00909090909091,
        "ab_hard_contact": -0.10852326459244555,
        "ab_bat_speed": 70.89874003553597,
        "ab_strikeout_rate": 0.20505077051422863,
        "available_players": 7,
        "top_players": [
          {
            "player_id": "676475",
            "player_name": "Alec Burleson",
            "position": "1B",
            "weight": 4.0,
            "quality": 1.307394932543869,
            "contact": 1.5037110813689576,
            "power": 1.456846188404678,
            "discipline": 0.3120108287217327,
            "xwoba": 0.39,
            "recent_xwoba": 0.39,
            "barrel": 11.5,
            "ab_hard_contact": 1.4454951966649892,
            "ab_bat_speed": 71.2597854030501,
            "ab_strikeout_rate": 0.15980392156862747,
            "available": 1.0
          },
          {
            "player_id": "691023",
            "player_name": "Jordan Walker",
            "position": "RF",
            "weight": 4.0,
            "quality": 1.1238904446019644,
            "contact": 1.2768949399123755,
            "power": 1.6604297076830754,
            "discipline": -0.567078340279201,
            "xwoba": 0.37,
            "recent_xwoba": 0.37,
            "barrel": 14.1,
            "ab_hard_contact": 1.2036417727091187,
            "ab_bat_speed": 77.65222766884531,
            "ab_strikeout_rate": 0.25653594771241833,
            "available": 1.0
          },
          {
            "player_id": "802139",
            "player_name": "JJ Wetherholt",
            "position": "2B",
            "weight": 4.0,
            "quality": 0.5750139653300903,
            "contact": 0.7429160935071464,
            "power": 0.4422965262103176,
            "discipline": 0.53434556261529,
            "xwoba": 0.354,
            "recent_xwoba": 0.354,
            "barrel": 7.5,
            "ab_hard_contact": 0.35983528611111343,
            "ab_bat_speed": 70.76903297682709,
            "ab_strikeout_rate": 0.18725490196078431,
            "available": 1.0
          },
          {
            "player_id": "671056",
            "player_name": "Iván Herrera",
            "position": "DH",
            "weight": 4.0,
            "quality": 0.6116828392584406,
            "contact": 0.9015695312132312,
            "power": 0.23485652304853735,
            "discipline": 0.8795829820585921,
            "xwoba": 0.369,
            "recent_xwoba": 0.369,
            "barrel": 7.0,
            "ab_hard_contact": 1.1314161752564633,
            "ab_bat_speed": 72.79067895299146,
            "ab_strikeout_rate": 0.1825174825174825,
            "available": 1.0
          },
          {
            "player_id": "665877",
            "player_name": "José Fermín",
            "position": "CF",
            "weight": 3.0,
            "quality": -0.2649669669805066,
            "contact": -0.7962614466422462,
            "power": -1.2245828315765896,
            "discipline": 0.37548141695702697,
            "xwoba": 0.264,
            "recent_xwoba": 0.264,
            "barrel": 1.2,
            "ab_hard_contact": -1.2748947267698985,
            "ab_bat_speed": 65.39455555555556,
            "ab_strikeout_rate": 0.19333333333333333,
            "available": 1.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "702070",
        "player_name": "Noah Cameron",
        "quality": -0.20405674534838358,
        "contact": -0.3086105985234922,
        "command": 0.05299999999999985,
        "movement": -0.5782112579420529,
        "xwoba": 0.32,
        "whiff": 23.9,
        "faced_est_woba": 0.267543125,
        "faced_launch_speed": 83.82962962962962,
        "faced_strikeout_rate": 0.23125,
        "faced_run_exp": 0.007916194341372912
      }
    },
    "home": {
      "team": "KC",
      "original_runs": 3,
      "run_delta": 0.4548,
      "adjusted_runs": 3,
      "lineup": {
        "players_used": 9,
        "total_weight": 30.0,
        "quality": 0.16624039223487783,
        "contact": 0.12645704152830184,
        "power": 0.24271981504558252,
        "discipline": 0.01248222578958172,
        "xwoba": 0.31670000000000004,
        "recent_xwoba": 0.31670000000000004,
        "barrel": 9.139999999999999,
        "ab_hard_contact": 0.12972963424498005,
        "ab_bat_speed": 71.52244992632572,
        "ab_strikeout_rate": 0.23341347688173084,
        "available_players": 9,
        "top_players": [
          {
            "player_id": "677951",
            "player_name": "Bobby Witt Jr.",
            "position": "SS",
            "weight": 4.0,
            "quality": 1.3898873957075368,
            "contact": 1.7059225749559086,
            "power": 1.3960832807047787,
            "discipline": 0.41155725469953125,
            "xwoba": 0.387,
            "recent_xwoba": 0.387,
            "barrel": 11.8,
            "ab_hard_contact": 1.640522756952706,
            "ab_bat_speed": 72.66099828532236,
            "ab_strikeout_rate": 0.1765432098765432,
            "available": 1.0
          },
          {
            "player_id": "695506",
            "player_name": "Jac Caglianone",
            "position": "1B",
            "weight": 3.0,
            "quality": 0.7263057692061335,
            "contact": 0.980750115068152,
            "power": 1.3636671178998407,
            "discipline": -0.5600866102538575,
            "xwoba": 0.356,
            "recent_xwoba": 0.356,
            "barrel": 14.2,
            "ab_hard_contact": 0.49277092942537754,
            "ab_bat_speed": 75.01769517330742,
            "ab_strikeout_rate": 0.31411564625850336,
            "available": 1.0
          },
          {
            "player_id": "686555",
            "player_name": "Isaac Collins",
            "position": "LF",
            "weight": 3.0,
            "quality": -0.1778530199446606,
            "contact": -0.24696597415547375,
            "power": -0.47237876832982345,
            "discipline": 0.3944576074332174,
            "xwoba": 0.308,
            "recent_xwoba": 0.308,
            "barrel": 6.8,
            "ab_hard_contact": -0.0711944142155232,
            "ab_bat_speed": 71.07328395061728,
            "ab_strikeout_rate": 0.27999999999999997,
            "available": 1.0
          },
          {
            "player_id": "521692",
            "player_name": "Salvador Perez",
            "position": "C",
            "weight": 4.0,
            "quality": -0.2426593623056289,
            "contact": -0.4512410189865688,
            "power": -0.08396955002636533,
            "discipline": -0.5306660189404092,
            "xwoba": 0.282,
            "recent_xwoba": 0.282,
            "barrel": 7.8,
            "ab_hard_contact": -0.23062909576540688,
            "ab_bat_speed": 70.49782451923078,
            "ab_strikeout_rate": 0.21298076923076922,
            "available": 1.0
          },
          {
            "player_id": "695600",
            "player_name": "Carter Jensen",
            "position": "DH",
            "weight": 4.0,
            "quality": -0.250669003994217,
            "contact": -0.5097082969823828,
            "power": 0.05140174889282134,
            "discipline": -0.4316478347436534,
            "xwoba": 0.282,
            "recent_xwoba": 0.282,
            "barrel": 8.9,
            "ab_hard_contact": -0.3504412126197644,
            "ab_bat_speed": 72.7519387755102,
            "ab_strikeout_rate": 0.3064625850340136,
            "available": 1.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "669461",
        "player_name": "Matthew Liberatore",
        "quality": -0.7153251454214273,
        "contact": -1.2454630043774606,
        "command": -0.156857142857143,
        "movement": -0.29242507879834484,
        "xwoba": 0.359,
        "whiff": 22.5,
        "faced_est_woba": 0.267543125,
        "faced_launch_speed": 83.82962962962962,
        "faced_strikeout_rate": 0.23125,
        "faced_run_exp": 0.007916194341372912
      }
    }
  },
  "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Production confidence governor cap enforced.",
  "pre_simulation_target": {
    "away_runs": 4,
    "home_runs": 3,
    "predicted_score_text": "STL 4 - 3 KC",
    "confidence": 0.546576,
    "source": "enhanced_prediction_before_inning_simulation"
  },
  "score_source": "enhanced_prediction.pre_simulation_target",
  "final_prediction_synced": true,
  "final_prediction_source": "pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "simulation_score_matches_prediction": false,
  "simulation_reconciliation": {
    "pre_simulation_score": {
      "away_runs": 4,
      "home_runs": 3,
      "score_text": "STL 4 - 3 KC",
      "winner": "STL"
    },
    "final_simulation_score": {
      "away_runs": 6,
      "home_runs": 1,
      "score_text": "STL 6 - 1 KC",
      "winner": "STL"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": 2,
    "home_run_delta": -2,
    "total_run_delta": 0,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}

Savant Batter Quality

Source: data/all_players_stats.csv embedded Savant hitter features. It adjusts team offense through expected production and contact quality, then records coverage so missing hitters are visible.

TeamAppliedOffense FactorRaw Avg FactorCoverage WeightCoveredMissing
Away STLTrue1.03991.0399190
Home KCTrue1.02091.0209190

Away Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
DHIván Herrera371.06190.8254neutral0.36900.26700.4210741.7089.607.2019.7015.3012.800.0857
LFNelson Velázquez2481.06230.8302neutral0.42400.32400.624015.8068.4093.407.6032.7027.603.400.1143
2BJJ Wetherholt121.06340.8456neutral0.35400.25600.44107.504690.3014.6021.3016.2010.700.4000
RFJordan Walker91.10511.4014neutral0.37000.28400.521014.1052.7094.7013.1030.8025.206.90-0.2286
SSMasyn Winn1540.9951-0.0654neutral0.30800.25900.33003.2033.3087.2012.5022.70209.100.6000
3BBlaze Jordan2670.9901-0.1320negative_batter_regression0.28400.22700.39105.3057.9093.600.8017.509.104.50-2
1BAlec Burleson671.12521.6700neutral0.39000.29700.558011.5047.7091.6012.1020.8015.408.400.8286
CFJosé Fermín4180.9663-0.4487negative_batter_regression0.26400.22400.30201.2031.7085.801814.1015.707.40-1.2857
CPedro Pagés3690.9898-0.1356neutral0.28400.23200.38006.3038.508714.2027.1023.703.700.0857

Home Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
1BJac Caglianone881.07671.0221neutral0.35600.27200.473014.2056.8093.40831.3029.808.500.4000
CFLane Thomas2371.00340.0454neutral0.32400.22900.34905.5036.408724.1019.6021.2016.20-0.0857
RFStarling Marte4431.00690.0917neutral0.30300.23800.391012.7038.2090.60629.7027.905.800.3143
SSBobby Witt Jr.31.12971.7296positive_batter_regression0.38700.30900.512011.8052.1093.2016.9023.501710.400.8857
CSalvador Perez5590.9940-0.0803positive_batter_regression0.28200.22200.37807.8039.9088.501725.3019.204.100.9429
DHCarter Jensen2200.9823-0.2365negative_batter_regression0.28200.21100.35308.9043.4090.8019.9030.8028.209-0.8571
3BNick Loftin3311.00130.0169neutral0.32100.24200.35005.4033.3086.9012.701512.5012.50-0.1143
LFIsaac Collins5280.9967-0.0437neutral0.30800.22600.31506.8039.5088.5018.7024.9024.9013.100.3143
2BMichael Massey1510.9973-0.0360negative_batter_regression0.28700.22700.41708.8042.6091.1019.5021.1017.502.90-0.8571
Raw Savant Batter Quality JSON
{
  "home": {
    "applied": true,
    "offense_factor": 1.0209,
    "raw_average_factor": 1.0209,
    "team_espn_average_rank": 284.44,
    "coverage_weight": 1.0,
    "covered_batters": 9,
    "missing_batters": 0,
    "players": [
      {
        "position": "1B",
        "player_id": "695506",
        "player_name": "Jac Caglianone",
        "offense_factor": 1.0767,
        "quality_score": 1.0221,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "695506",
          "espn_id": 4926296,
          "player_name": "Jac Caglianone",
          "team": "KC",
          "role": "batter",
          "espn_rank": 88,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 88,
            "gp_value": 69.0,
            "gp_rank": 83,
            "ab_value": 232.0,
            "ab_rank": 117,
            "r_value": 29.0,
            "r_rank": 128,
            "h_value": 62.0,
            "h_rank": 89,
            "avg_value": 0.2672413,
            "avg_rank": 55.0,
            "2b_value": 12.0,
            "2b_rank": 80,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 8.0,
            "hr_rank": 98,
            "rbi_value": 20.0,
            "rbi_rank": 204,
            "tb_value": 100.0,
            "tb_rank": 607,
            "bb_value": 22.0,
            "bb_rank": 123,
            "so_value": 77.0,
            "so_rank": 25,
            "sb_value": 3.0,
            "sb_rank": 148,
            "obp_value": 0.3410852,
            "obp_rank": "66",
            "slg_value": 0.4310344,
            "slg_rank": "72",
            "ops_value": 0.7721196,
            "ops_rank": 138.0,
            "war_value": 1.39,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 178.0,
          "k_percent": 29.8,
          "bb_percent": 8.5,
          "woba": 0.342,
          "xwoba": 0.356,
          "xba": 0.272,
          "xslg": 0.473,
          "sweet_spot_percent": 39.4,
          "barrel_batted_rate": 14.2,
          "hard_hit_percent": 56.8,
          "exit_velocity_avg": 93.4,
          "launch_angle_avg": 8.0,
          "whiff_percent": 31.3,
          "swing_percent": 49.8
        },
        "components": {
          "expected_quality": 1.4039,
          "regression_edge": 0.4,
          "xwoba_edge": 1.4857,
          "xba_edge": 0.9571,
          "xslg_edge": 1.4429,
          "barrel_edge": 1.6444,
          "hard_hit_edge": 2.5,
          "exit_velocity_edge": 1.84,
          "sweet_spot_edge": 1.0167,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "CF",
        "player_id": "657041",
        "player_name": "Lane Thomas",
        "offense_factor": 1.0034,
        "quality_score": 0.0454,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "657041",
          "espn_id": 36409,
          "player_name": "Lane Thomas",
          "team": "KC",
          "role": "batter",
          "espn_rank": 237,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 237,
            "gp_value": 60.0,
            "gp_rank": 174,
            "ab_value": 146.0,
            "ab_rank": 245,
            "r_value": 17.0,
            "r_rank": 240,
            "h_value": 33.0,
            "h_rank": 246,
            "avg_value": 0.2260273,
            "avg_rank": null,
            "2b_value": 4.0,
            "2b_rank": 307,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 5.0,
            "hr_rank": 184,
            "rbi_value": 18.0,
            "rbi_rank": 231,
            "tb_value": 52.0,
            "tb_rank": 1493,
            "bb_value": 29.0,
            "bb_rank": 61,
            "so_value": 38.0,
            "so_rank": 208,
            "sb_value": 3.0,
            "sb_rank": 148,
            "obp_value": 0.3575418,
            "obp_rank": "-",
            "slg_value": 0.3561643,
            "slg_rank": "-",
            "ops_value": 0.7137061,
            "ops_rank": null,
            "war_value": 0.35,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 113.0,
          "k_percent": 21.2,
          "bb_percent": 16.2,
          "woba": 0.327,
          "xwoba": 0.324,
          "xba": 0.229,
          "xslg": 0.349,
          "sweet_spot_percent": 38.2,
          "barrel_batted_rate": 5.5,
          "hard_hit_percent": 36.4,
          "exit_velocity_avg": 87.0,
          "launch_angle_avg": 24.1,
          "whiff_percent": 19.6,
          "swing_percent": 39.8
        },
        "components": {
          "expected_quality": 0.1168,
          "regression_edge": -0.0857,
          "xwoba_edge": 0.5714,
          "xba_edge": -0.2714,
          "xslg_edge": -0.3286,
          "barrel_edge": -0.2889,
          "hard_hit_edge": -0.3,
          "exit_velocity_edge": -0.72,
          "sweet_spot_edge": 0.8167,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "RF",
        "player_id": "516782",
        "player_name": "Starling Marte",
        "offense_factor": 1.0069,
        "quality_score": 0.0917,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "516782",
          "espn_id": 30830,
          "player_name": "Starling Marte",
          "team": "KC",
          "role": "batter",
          "espn_rank": 443,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 443,
            "gp_value": 33.0,
            "gp_rank": 338,
            "ab_value": 78.0,
            "ab_rank": 363,
            "r_value": 6.0,
            "r_rank": 398,
            "h_value": 20.0,
            "h_rank": 336,
            "avg_value": 0.2564102,
            "avg_rank": null,
            "2b_value": 3.0,
            "2b_rank": 356,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 1.0,
            "hr_rank": 365,
            "rbi_value": 5.0,
            "rbi_rank": 401,
            "tb_value": 26.0,
            "tb_rank": 2175,
            "bb_value": 5.0,
            "bb_rank": 382,
            "so_value": 24.0,
            "so_rank": 315,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3139534,
            "obp_rank": "-",
            "slg_value": 0.3333333,
            "slg_rank": "-",
            "ops_value": 0.6472867,
            "ops_rank": null,
            "war_value": -0.18,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 54.0,
          "k_percent": 27.9,
          "bb_percent": 5.8,
          "woba": 0.292,
          "xwoba": 0.303,
          "xba": 0.238,
          "xslg": 0.391,
          "sweet_spot_percent": 30.9,
          "barrel_batted_rate": 12.7,
          "hard_hit_percent": 38.2,
          "exit_velocity_avg": 90.6,
          "launch_angle_avg": 6.0,
          "whiff_percent": 29.7,
          "swing_percent": 50.2
        },
        "components": {
          "expected_quality": 0.1857,
          "regression_edge": 0.3143,
          "xwoba_edge": -0.0286,
          "xba_edge": -0.0143,
          "xslg_edge": 0.2714,
          "barrel_edge": 1.3111,
          "hard_hit_edge": -0.0429,
          "exit_velocity_edge": 0.72,
          "sweet_spot_edge": -0.4,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "SS",
        "player_id": "677951",
        "player_name": "Bobby Witt Jr.",
        "offense_factor": 1.1297,
        "quality_score": 1.7296,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "677951",
          "espn_id": 42403,
          "player_name": "Bobby Witt Jr.",
          "team": "KC",
          "role": "batter",
          "espn_rank": 3,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 3,
            "gp_value": 75.0,
            "gp_rank": 1,
            "ab_value": 297.0,
            "ab_rank": 4,
            "r_value": 38.0,
            "r_rank": 64,
            "h_value": 86.0,
            "h_rank": 4,
            "avg_value": 0.2895622,
            "avg_rank": 22.0,
            "2b_value": 19.0,
            "2b_rank": 4,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 9.0,
            "hr_rank": 84,
            "rbi_value": 30.0,
            "rbi_rank": 113,
            "tb_value": 134.0,
            "tb_rank": 396,
            "bb_value": 35.0,
            "bb_rank": 37,
            "so_value": 57.0,
            "so_rank": 96,
            "sb_value": 28.0,
            "sb_rank": 1,
            "obp_value": 0.3641791,
            "obp_rank": "36",
            "slg_value": 0.4511784,
            "slg_rank": "55",
            "ops_value": 0.8153575,
            "ops_rank": 19.0,
            "war_value": 4.17,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 238.0,
          "k_percent": 17.0,
          "bb_percent": 10.4,
          "woba": 0.356,
          "xwoba": 0.387,
          "xba": 0.309,
          "xslg": 0.512,
          "sweet_spot_percent": 38.4,
          "barrel_batted_rate": 11.8,
          "hard_hit_percent": 52.1,
          "exit_velocity_avg": 93.2,
          "launch_angle_avg": 16.9,
          "whiff_percent": 23.5,
          "swing_percent": 47.5
        },
        "components": {
          "expected_quality": 1.8669,
          "regression_edge": 0.8857,
          "xwoba_edge": 2.3714,
          "xba_edge": 2.0143,
          "xslg_edge": 2.0,
          "barrel_edge": 1.1111,
          "hard_hit_edge": 1.9429,
          "exit_velocity_edge": 1.76,
          "sweet_spot_edge": 0.85,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "C",
        "player_id": "521692",
        "player_name": "Salvador Perez",
        "offense_factor": 0.994,
        "quality_score": -0.0803,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "521692",
          "espn_id": 31127,
          "player_name": "Salvador Perez",
          "team": "KC",
          "role": "batter",
          "espn_rank": 559,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 559,
            "gp_value": 69.0,
            "gp_rank": 83,
            "ab_value": 270.0,
            "ab_rank": 37,
            "r_value": 25.0,
            "r_rank": 167,
            "h_value": 54.0,
            "h_rank": 125,
            "avg_value": 0.2,
            "avg_rank": 156.0,
            "2b_value": 6.0,
            "2b_rank": 235,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 9.0,
            "hr_rank": 84,
            "rbi_value": 26.0,
            "rbi_rank": 146,
            "tb_value": 87.0,
            "tb_rank": 1000,
            "bb_value": 12.0,
            "bb_rank": 253,
            "so_value": 56.0,
            "so_rank": 99,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.2439862,
            "obp_rank": "163",
            "slg_value": 0.3222222,
            "slg_rank": "149",
            "ops_value": 0.5662084,
            "ops_rank": 312.0,
            "war_value": -0.92,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 218.0,
          "k_percent": 19.2,
          "bb_percent": 4.1,
          "woba": 0.249,
          "xwoba": 0.282,
          "xba": 0.222,
          "xslg": 0.378,
          "sweet_spot_percent": 31.7,
          "barrel_batted_rate": 7.8,
          "hard_hit_percent": 39.9,
          "exit_velocity_avg": 88.5,
          "launch_angle_avg": 17.0,
          "whiff_percent": 25.3,
          "swing_percent": 57.7
        },
        "components": {
          "expected_quality": -0.2477,
          "regression_edge": 0.9429,
          "xwoba_edge": -0.6286,
          "xba_edge": -0.4714,
          "xslg_edge": 0.0857,
          "barrel_edge": 0.2222,
          "hard_hit_edge": 0.2,
          "exit_velocity_edge": -0.12,
          "sweet_spot_edge": -0.2667,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "DH",
        "player_id": "695600",
        "player_name": "Carter Jensen",
        "offense_factor": 0.9823,
        "quality_score": -0.2365,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "695600",
          "espn_id": 4917812,
          "player_name": "Carter Jensen",
          "team": "KC",
          "role": "batter",
          "espn_rank": 220,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 220,
            "gp_value": 68.0,
            "gp_rank": 104,
            "ab_value": 226.0,
            "ab_rank": 124,
            "r_value": 31.0,
            "r_rank": 109,
            "h_value": 53.0,
            "h_rank": 132,
            "avg_value": 0.2345132,
            "avg_rank": 116.0,
            "2b_value": 14.0,
            "2b_rank": 45,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 9.0,
            "hr_rank": 84,
            "rbi_value": 37.0,
            "rbi_rank": 54,
            "tb_value": 94.0,
            "tb_rank": 817,
            "bb_value": 23.0,
            "bb_rank": 109,
            "so_value": 72.0,
            "so_rank": 42,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3019607,
            "obp_rank": "131",
            "slg_value": 0.4159292,
            "slg_rank": "88",
            "ops_value": 0.7178899,
            "ops_rank": 219.0,
            "war_value": 0.44,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 184.0,
          "k_percent": 28.2,
          "bb_percent": 9.0,
          "woba": 0.312,
          "xwoba": 0.282,
          "xba": 0.211,
          "xslg": 0.353,
          "sweet_spot_percent": 30.2,
          "barrel_batted_rate": 8.9,
          "hard_hit_percent": 43.4,
          "exit_velocity_avg": 90.8,
          "launch_angle_avg": 19.9,
          "whiff_percent": 30.8,
          "swing_percent": 44.8
        },
        "components": {
          "expected_quality": -0.1893,
          "regression_edge": -0.8571,
          "xwoba_edge": -0.6286,
          "xba_edge": -0.7857,
          "xslg_edge": -0.2714,
          "barrel_edge": 0.4667,
          "hard_hit_edge": 0.7,
          "exit_velocity_edge": 0.8,
          "sweet_spot_edge": -0.5167,
          "launch_angle_hr_bonus": 0.45
        }
      },
      {
        "position": "3B",
        "player_id": "679845",
        "player_name": "Nick Loftin",
        "offense_factor": 1.0013,
        "quality_score": 0.0169,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "679845",
          "espn_id": 4314013,
          "player_name": "Nick Loftin",
          "team": "KC",
          "role": "batter",
          "espn_rank": 331,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 331,
            "gp_value": 39.0,
            "gp_rank": 314,
            "ab_value": 105.0,
            "ab_rank": 312,
            "r_value": 14.0,
            "r_rank": 287,
            "h_value": 25.0,
            "h_rank": 297,
            "avg_value": 0.2380952,
            "avg_rank": null,
            "2b_value": 10.0,
            "2b_rank": 125,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 1.0,
            "hr_rank": 365,
            "rbi_value": 18.0,
            "rbi_rank": 231,
            "tb_value": 40.0,
            "tb_rank": 1661,
            "bb_value": 16.0,
            "bb_rank": 193,
            "so_value": 16.0,
            "so_rank": 393,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3464566,
            "obp_rank": "-",
            "slg_value": 0.3809523,
            "slg_rank": "-",
            "ops_value": 0.7274089,
            "ops_rank": null,
            "war_value": 0.03,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 66.0,
          "k_percent": 12.5,
          "bb_percent": 12.5,
          "woba": 0.325,
          "xwoba": 0.321,
          "xba": 0.242,
          "xslg": 0.35,
          "sweet_spot_percent": 34.4,
          "barrel_batted_rate": 5.4,
          "hard_hit_percent": 33.3,
          "exit_velocity_avg": 86.9,
          "launch_angle_avg": 12.7,
          "whiff_percent": 15.0,
          "swing_percent": 39.5
        },
        "components": {
          "expected_quality": 0.0622,
          "regression_edge": -0.1143,
          "xwoba_edge": 0.4857,
          "xba_edge": 0.1,
          "xslg_edge": -0.3143,
          "barrel_edge": -0.3111,
          "hard_hit_edge": -0.7429,
          "exit_velocity_edge": -0.76,
          "sweet_spot_edge": 0.1833,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "LF",
        "player_id": "686555",
        "player_name": "Isaac Collins",
        "offense_factor": 0.9967,
        "quality_score": -0.0437,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "686555",
          "espn_id": 42959,
          "player_name": "Isaac Collins",
          "team": "KC",
          "role": "batter",
          "espn_rank": 528,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 528,
            "gp_value": 66.0,
            "gp_rank": 132,
            "ab_value": 203.0,
            "ab_rank": 152,
            "r_value": 25.0,
            "r_rank": 167,
            "h_value": 44.0,
            "h_rank": 186,
            "avg_value": 0.2167487,
            "avg_rank": 146.0,
            "2b_value": 8.0,
            "2b_rank": 188,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 3.0,
            "hr_rank": 243,
            "rbi_value": 20.0,
            "rbi_rank": 204,
            "tb_value": 61.0,
            "tb_rank": 1491,
            "bb_value": 32.0,
            "bb_rank": 49,
            "so_value": 61.0,
            "so_rank": 78,
            "sb_value": 3.0,
            "sb_rank": 148,
            "obp_value": 0.3347107,
            "obp_rank": "82",
            "slg_value": 0.3004926,
            "slg_rank": "161",
            "ops_value": 0.6352033,
            "ops_rank": 243.0,
            "war_value": -0.51,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 176.0,
          "k_percent": 24.9,
          "bb_percent": 13.1,
          "woba": 0.297,
          "xwoba": 0.308,
          "xba": 0.226,
          "xslg": 0.315,
          "sweet_spot_percent": 32.0,
          "barrel_batted_rate": 6.8,
          "hard_hit_percent": 39.5,
          "exit_velocity_avg": 88.5,
          "launch_angle_avg": 18.7,
          "whiff_percent": 24.9,
          "swing_percent": 39.2
        },
        "components": {
          "expected_quality": -0.1147,
          "regression_edge": 0.3143,
          "xwoba_edge": 0.1143,
          "xba_edge": -0.3571,
          "xslg_edge": -0.8143,
          "barrel_edge": 0.0,
          "hard_hit_edge": 0.1429,
          "exit_velocity_edge": -0.12,
          "sweet_spot_edge": -0.2167,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "2B",
        "player_id": "686681",
        "player_name": "Michael Massey",
        "offense_factor": 0.9973,
        "quality_score": -0.036,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "686681",
          "espn_id": 4109223,
          "player_name": "Michael Massey",
          "team": "KC",
          "role": "batter",
          "espn_rank": 151,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 151,
            "gp_value": 57.0,
            "gp_rank": 195,
            "ab_value": 161.0,
            "ab_rank": 223,
            "r_value": 20.0,
            "r_rank": 213,
            "h_value": 42.0,
            "h_rank": 193,
            "avg_value": 0.2608695,
            "avg_rank": null,
            "2b_value": 12.0,
            "2b_rank": 80,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 24.0,
            "rbi_rank": 173,
            "tb_value": 75.0,
            "tb_rank": 1018,
            "bb_value": 5.0,
            "bb_rank": 382,
            "so_value": 30.0,
            "so_rank": 271,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.2781065,
            "obp_rank": "-",
            "slg_value": 0.4658385,
            "slg_rank": "-",
            "ops_value": 0.743945,
            "ops_rank": null,
            "war_value": 0.88,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 113.0,
          "k_percent": 17.5,
          "bb_percent": 2.9,
          "woba": 0.317,
          "xwoba": 0.287,
          "xba": 0.227,
          "xslg": 0.417,
          "sweet_spot_percent": 30.1,
          "barrel_batted_rate": 8.8,
          "hard_hit_percent": 42.6,
          "exit_velocity_avg": 91.1,
          "launch_angle_avg": 19.5,
          "whiff_percent": 21.1,
          "swing_percent": 52.5
        },
        "components": {
          "expected_quality": 0.058,
          "regression_edge": -0.8571,
          "xwoba_edge": -0.4857,
          "xba_edge": -0.3286,
          "xslg_edge": 0.6429,
          "barrel_edge": 0.4444,
          "hard_hit_edge": 0.5857,
          "exit_velocity_edge": 0.92,
          "sweet_spot_edge": -0.5333,
          "launch_angle_hr_bonus": 0.45
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "away": {
    "applied": true,
    "offense_factor": 1.0399,
    "raw_average_factor": 1.0399,
    "team_espn_average_rank": 175.67,
    "coverage_weight": 1.0,
    "covered_batters": 9,
    "missing_batters": 0,
    "players": [
      {
        "position": "DH",
        "player_id": "671056",
        "player_name": "Iván Herrera",
        "offense_factor": 1.0619,
        "quality_score": 0.8254,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "671056",
          "espn_id": 41889,
          "player_name": "Ivan Herrera",
          "team": "STL",
          "role": "batter",
          "espn_rank": 37,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 37,
            "gp_value": 72.0,
            "gp_rank": 37,
            "ab_value": 264.0,
            "ab_rank": 57,
            "r_value": 48.0,
            "r_rank": 13,
            "h_value": 69.0,
            "h_rank": 55,
            "avg_value": 0.2613636,
            "avg_rank": 63.0,
            "2b_value": 13.0,
            "2b_rank": 61,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 9.0,
            "hr_rank": 84,
            "rbi_value": 31.0,
            "rbi_rank": 104,
            "tb_value": 111.0,
            "tb_rank": 512,
            "bb_value": 42.0,
            "bb_rank": 15,
            "so_value": 50.0,
            "so_rank": 136,
            "sb_value": 5.0,
            "sb_rank": 94,
            "obp_value": 0.3975535,
            "obp_rank": "7",
            "slg_value": 0.4204545,
            "slg_rank": "83",
            "ops_value": 0.818008,
            "ops_rank": 76.0,
            "war_value": 2.29,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 236.0,
          "k_percent": 15.3,
          "bb_percent": 12.8,
          "woba": 0.366,
          "xwoba": 0.369,
          "xba": 0.267,
          "xslg": 0.421,
          "sweet_spot_percent": 31.0,
          "barrel_batted_rate": 7.0,
          "hard_hit_percent": 41.7,
          "exit_velocity_avg": 89.6,
          "launch_angle_avg": 7.2,
          "whiff_percent": 19.7,
          "swing_percent": 43.0
        },
        "components": {
          "expected_quality": 0.9458,
          "regression_edge": 0.0857,
          "xwoba_edge": 1.8571,
          "xba_edge": 0.8143,
          "xslg_edge": 0.7,
          "barrel_edge": 0.0444,
          "hard_hit_edge": 0.4571,
          "exit_velocity_edge": 0.32,
          "sweet_spot_edge": -0.3833,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "LF",
        "player_id": "676369",
        "player_name": "Nelson Velázquez",
        "offense_factor": 1.0623,
        "quality_score": 0.8302,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "676369",
          "espn_id": 41047,
          "player_name": "Nelson Velazquez",
          "team": "STL",
          "role": "batter",
          "espn_rank": 248,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 248,
            "gp_value": 11.0,
            "gp_rank": 480,
            "ab_value": 27.0,
            "ab_rank": 476,
            "r_value": 5.0,
            "r_rank": 422,
            "h_value": 9.0,
            "h_rank": 421,
            "avg_value": 0.3333333,
            "avg_rank": null,
            "2b_value": 1.0,
            "2b_rank": 430,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 2.0,
            "hr_rank": 301,
            "rbi_value": 6.0,
            "rbi_rank": 383,
            "tb_value": 16.0,
            "tb_rank": 2142,
            "bb_value": 1.0,
            "bb_rank": 472,
            "so_value": 8.0,
            "so_rank": 460,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3793103,
            "obp_rank": "-",
            "slg_value": 0.5925925,
            "slg_rank": "-",
            "ops_value": 0.9719028,
            "ops_rank": null,
            "war_value": 0.3,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 0.0,
          "k_percent": 27.6,
          "bb_percent": 3.4,
          "woba": 0.42,
          "xwoba": 0.424,
          "xba": 0.324,
          "xslg": 0.624,
          "sweet_spot_percent": 42.1,
          "barrel_batted_rate": 15.8,
          "hard_hit_percent": 68.4,
          "exit_velocity_avg": 93.4,
          "launch_angle_avg": 7.6,
          "whiff_percent": 32.7,
          "swing_percent": 48.5
        },
        "components": {
          "expected_quality": 2.1266,
          "regression_edge": 0.1143,
          "xwoba_edge": 2.5,
          "xba_edge": 2.4429,
          "xslg_edge": 2.5,
          "barrel_edge": 2.0,
          "hard_hit_edge": 2.5,
          "exit_velocity_edge": 1.84,
          "sweet_spot_edge": 1.4667,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "2B",
        "player_id": "802139",
        "player_name": "JJ Wetherholt",
        "offense_factor": 1.0634,
        "quality_score": 0.8456,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "802139",
          "espn_id": 4941056,
          "player_name": "JJ Wetherholt",
          "team": "STL",
          "role": "batter",
          "espn_rank": 12,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 12,
            "gp_value": 68.0,
            "gp_rank": 104,
            "ab_value": 263.0,
            "ab_rank": 59,
            "r_value": 45.0,
            "r_rank": 26,
            "h_value": 68.0,
            "h_rank": 61,
            "avg_value": 0.2585551,
            "avg_rank": 67.0,
            "2b_value": 7.0,
            "2b_rank": 206,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 10.0,
            "hr_rank": 69,
            "rbi_value": 31.0,
            "rbi_rank": 104,
            "tb_value": 105.0,
            "tb_rank": 862,
            "bb_value": 33.0,
            "bb_rank": 46,
            "so_value": 50.0,
            "so_rank": 136,
            "sb_value": 8.0,
            "sb_rank": 55,
            "obp_value": 0.3603896,
            "obp_rank": "41",
            "slg_value": 0.3992395,
            "slg_rank": "106",
            "ops_value": 0.7596291,
            "ops_rank": 147.0,
            "war_value": 3.05,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 237.0,
          "k_percent": 16.2,
          "bb_percent": 10.7,
          "woba": 0.34,
          "xwoba": 0.354,
          "xba": 0.256,
          "xslg": 0.441,
          "sweet_spot_percent": 34.4,
          "barrel_batted_rate": 7.5,
          "hard_hit_percent": 46.0,
          "exit_velocity_avg": 90.3,
          "launch_angle_avg": 14.6,
          "whiff_percent": 21.3,
          "swing_percent": 43.7
        },
        "components": {
          "expected_quality": 0.9182,
          "regression_edge": 0.4,
          "xwoba_edge": 1.4286,
          "xba_edge": 0.5,
          "xslg_edge": 0.9857,
          "barrel_edge": 0.1556,
          "hard_hit_edge": 1.0714,
          "exit_velocity_edge": 0.6,
          "sweet_spot_edge": 0.1833,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "RF",
        "player_id": "691023",
        "player_name": "Jordan Walker",
        "offense_factor": 1.1051,
        "quality_score": 1.4014,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "691023",
          "espn_id": 4684778,
          "player_name": "Jordan Walker",
          "team": "STL",
          "role": "batter",
          "espn_rank": 9,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 9,
            "gp_value": 71.0,
            "gp_rank": 49,
            "ab_value": 281.0,
            "ab_rank": 22,
            "r_value": 46.0,
            "r_rank": 21,
            "h_value": 81.0,
            "h_rank": 8,
            "avg_value": 0.2882562,
            "avg_rank": 24.0,
            "2b_value": 16.0,
            "2b_rank": 17,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 18.0,
            "hr_rank": 10,
            "rbi_value": 56.0,
            "rbi_rank": 2,
            "tb_value": 151.0,
            "tb_rank": 427,
            "bb_value": 21.0,
            "bb_rank": 138,
            "so_value": 77.0,
            "so_rank": 25,
            "sb_value": 10.0,
            "sb_rank": 37,
            "obp_value": 0.3409836,
            "obp_rank": "66",
            "slg_value": 0.5373665,
            "slg_rank": "14",
            "ops_value": 0.8783501,
            "ops_rank": 52.0,
            "war_value": 3.35,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 223.0,
          "k_percent": 25.2,
          "bb_percent": 6.9,
          "woba": 0.378,
          "xwoba": 0.37,
          "xba": 0.284,
          "xslg": 0.521,
          "sweet_spot_percent": 35.1,
          "barrel_batted_rate": 14.1,
          "hard_hit_percent": 52.7,
          "exit_velocity_avg": 94.7,
          "launch_angle_avg": 13.1,
          "whiff_percent": 30.8,
          "swing_percent": 52.3
        },
        "components": {
          "expected_quality": 1.6668,
          "regression_edge": -0.2286,
          "xwoba_edge": 1.8857,
          "xba_edge": 1.3,
          "xslg_edge": 2.1286,
          "barrel_edge": 1.6222,
          "hard_hit_edge": 2.0286,
          "exit_velocity_edge": 2.36,
          "sweet_spot_edge": 0.3,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "SS",
        "player_id": "691026",
        "player_name": "Masyn Winn",
        "offense_factor": 0.9951,
        "quality_score": -0.0654,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "691026",
          "espn_id": 4683365,
          "player_name": "Masyn Winn",
          "team": "STL",
          "role": "batter",
          "espn_rank": 154,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 154,
            "gp_value": 65.0,
            "gp_rank": 144,
            "ab_value": 239.0,
            "ab_rank": 109,
            "r_value": 27.0,
            "r_rank": 147,
            "h_value": 56.0,
            "h_rank": 117,
            "avg_value": 0.2343096,
            "avg_rank": 121.0,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 2.0,
            "hr_rank": 301,
            "rbi_value": 26.0,
            "rbi_rank": 146,
            "tb_value": 75.0,
            "tb_rank": 1208,
            "bb_value": 25.0,
            "bb_rank": 90,
            "so_value": 55.0,
            "so_rank": 106,
            "sb_value": 6.0,
            "sb_rank": 79,
            "obp_value": 0.3163636,
            "obp_rank": "105",
            "slg_value": 0.3138075,
            "slg_rank": "156",
            "ops_value": 0.6301711,
            "ops_rank": 51.0,
            "war_value": 0.86,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 197.0,
          "k_percent": 20.0,
          "bb_percent": 9.1,
          "woba": 0.287,
          "xwoba": 0.308,
          "xba": 0.259,
          "xslg": 0.33,
          "sweet_spot_percent": 33.3,
          "barrel_batted_rate": 3.2,
          "hard_hit_percent": 33.3,
          "exit_velocity_avg": 87.2,
          "launch_angle_avg": 12.5,
          "whiff_percent": 22.7,
          "swing_percent": 41.6
        },
        "components": {
          "expected_quality": -0.1826,
          "regression_edge": 0.6,
          "xwoba_edge": 0.1143,
          "xba_edge": 0.5857,
          "xslg_edge": -0.6,
          "barrel_edge": -0.8,
          "hard_hit_edge": -0.7429,
          "exit_velocity_edge": -0.64,
          "sweet_spot_edge": 0.0,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "3B",
        "player_id": "691458",
        "player_name": "Blaze Jordan",
        "offense_factor": 0.9901,
        "quality_score": -0.132,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "691458",
          "espn_id": 4722953,
          "player_name": "Blaze Jordan",
          "team": "STL",
          "role": "batter",
          "espn_rank": 267,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 267,
            "gp_value": 6.0,
            "gp_rank": 527,
            "ab_value": 21.0,
            "ab_rank": 496,
            "r_value": 3.0,
            "r_rank": 447,
            "h_value": 6.0,
            "h_rank": 457,
            "avg_value": 0.2857142,
            "avg_rank": null,
            "2b_value": 1.0,
            "2b_rank": 430,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 1.0,
            "hr_rank": 365,
            "rbi_value": 5.0,
            "rbi_rank": 401,
            "tb_value": 12.0,
            "tb_rank": 2126,
            "bb_value": 1.0,
            "bb_rank": 472,
            "so_value": 2.0,
            "so_rank": 534,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3181818,
            "obp_rank": "-",
            "slg_value": 0.5714285,
            "slg_rank": "-",
            "ops_value": 0.8896103,
            "ops_rank": null,
            "war_value": 0.22,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 0.0,
          "k_percent": 9.1,
          "bb_percent": 4.5,
          "woba": 0.377,
          "xwoba": 0.284,
          "xba": 0.227,
          "xslg": 0.391,
          "sweet_spot_percent": 10.5,
          "barrel_batted_rate": 5.3,
          "hard_hit_percent": 57.9,
          "exit_velocity_avg": 93.6,
          "launch_angle_avg": 0.8,
          "whiff_percent": 17.5,
          "swing_percent": 51.9
        },
        "components": {
          "expected_quality": -0.0154,
          "regression_edge": -2.0,
          "xwoba_edge": -0.5714,
          "xba_edge": -0.3286,
          "xslg_edge": 0.2714,
          "barrel_edge": -0.3333,
          "hard_hit_edge": 2.5,
          "exit_velocity_edge": 1.92,
          "sweet_spot_edge": -2.5,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "1B",
        "player_id": "676475",
        "player_name": "Alec Burleson",
        "offense_factor": 1.1252,
        "quality_score": 1.67,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "676475",
          "espn_id": 4345070,
          "player_name": "Alec Burleson",
          "team": "STL",
          "role": "batter",
          "espn_rank": 67,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 67,
            "gp_value": 71.0,
            "gp_rank": 49,
            "ab_value": 281.0,
            "ab_rank": 22,
            "r_value": 39.0,
            "r_rank": 57,
            "h_value": 80.0,
            "h_rank": 9,
            "avg_value": 0.2846975,
            "avg_rank": 26.0,
            "2b_value": 18.0,
            "2b_rank": 8,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 13.0,
            "hr_rank": 39,
            "rbi_value": 53.0,
            "rbi_rank": 6,
            "tb_value": 137.0,
            "tb_rank": 522,
            "bb_value": 26.0,
            "bb_rank": 82,
            "so_value": 48.0,
            "so_rank": 146,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.3472668,
            "obp_rank": "58",
            "slg_value": 0.4875444,
            "slg_rank": "33",
            "ops_value": 0.8348112,
            "ops_rank": 25.0,
            "war_value": 1.69,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 224.0,
          "k_percent": 15.4,
          "bb_percent": 8.4,
          "woba": 0.361,
          "xwoba": 0.39,
          "xba": 0.297,
          "xslg": 0.558,
          "sweet_spot_percent": 34.5,
          "barrel_batted_rate": 11.5,
          "hard_hit_percent": 47.7,
          "exit_velocity_avg": 91.6,
          "launch_angle_avg": 12.1,
          "whiff_percent": 20.8,
          "swing_percent": 50.0
        },
        "components": {
          "expected_quality": 1.8069,
          "regression_edge": 0.8286,
          "xwoba_edge": 2.4571,
          "xba_edge": 1.6714,
          "xslg_edge": 2.5,
          "barrel_edge": 1.0444,
          "hard_hit_edge": 1.3143,
          "exit_velocity_edge": 1.12,
          "sweet_spot_edge": 0.2,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "CF",
        "player_id": "665877",
        "player_name": "José Fermín",
        "offense_factor": 0.9663,
        "quality_score": -0.4487,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "665877",
          "espn_id": 38851,
          "player_name": "Jose Fermin",
          "team": "STL",
          "role": "batter",
          "espn_rank": 418,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 418,
            "gp_value": 41.0,
            "gp_rank": 296,
            "ab_value": 98.0,
            "ab_rank": 325,
            "r_value": 9.0,
            "r_rank": 353,
            "h_value": 26.0,
            "h_rank": 288,
            "avg_value": 0.2653061,
            "avg_rank": null,
            "2b_value": 5.0,
            "2b_rank": 259,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 2.0,
            "hr_rank": 301,
            "rbi_value": 12.0,
            "rbi_rank": 292,
            "tb_value": 37.0,
            "tb_rank": 1838,
            "bb_value": 8.0,
            "bb_rank": 314,
            "so_value": 17.0,
            "so_rank": 383,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.317757,
            "obp_rank": "-",
            "slg_value": 0.377551,
            "slg_rank": "-",
            "ops_value": 0.695308,
            "ops_rank": null,
            "war_value": -0.13,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 68.0,
          "k_percent": 15.7,
          "bb_percent": 7.4,
          "woba": 0.309,
          "xwoba": 0.264,
          "xba": 0.224,
          "xslg": 0.302,
          "sweet_spot_percent": 25.6,
          "barrel_batted_rate": 1.2,
          "hard_hit_percent": 31.7,
          "exit_velocity_avg": 85.8,
          "launch_angle_avg": 18.0,
          "whiff_percent": 14.1,
          "swing_percent": 38.9
        },
        "components": {
          "expected_quality": -0.9501,
          "regression_edge": -1.2857,
          "xwoba_edge": -1.1429,
          "xba_edge": -0.4143,
          "xslg_edge": -1.0,
          "barrel_edge": -1.2444,
          "hard_hit_edge": -0.9714,
          "exit_velocity_edge": -1.2,
          "sweet_spot_edge": -1.2833,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "C",
        "player_id": "686780",
        "player_name": "Pedro Pagés",
        "offense_factor": 0.9898,
        "quality_score": -0.1356,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "686780",
          "espn_id": 42608,
          "player_name": "Pedro Pages",
          "team": "STL",
          "role": "batter",
          "espn_rank": 369,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 369,
            "gp_value": 41.0,
            "gp_rank": 296,
            "ab_value": 123.0,
            "ab_rank": 273,
            "r_value": 12.0,
            "r_rank": 310,
            "h_value": 28.0,
            "h_rank": 278,
            "avg_value": 0.2276422,
            "avg_rank": null,
            "2b_value": 6.0,
            "2b_rank": 235,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 4.0,
            "hr_rank": 203,
            "rbi_value": 10.0,
            "rbi_rank": 319,
            "tb_value": 46.0,
            "tb_rank": 1510,
            "bb_value": 5.0,
            "bb_rank": 382,
            "so_value": 32.0,
            "so_rank": 259,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.2671755,
            "obp_rank": "-",
            "slg_value": 0.3739837,
            "slg_rank": "-",
            "ops_value": 0.6411592,
            "ops_rank": null,
            "war_value": -0.04,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 121.0,
          "k_percent": 23.7,
          "bb_percent": 3.7,
          "woba": 0.281,
          "xwoba": 0.284,
          "xba": 0.232,
          "xslg": 0.38,
          "sweet_spot_percent": 32.3,
          "barrel_batted_rate": 6.3,
          "hard_hit_percent": 38.5,
          "exit_velocity_avg": 87.0,
          "launch_angle_avg": 14.2,
          "whiff_percent": 27.1,
          "swing_percent": 50.6
        },
        "components": {
          "expected_quality": -0.3007,
          "regression_edge": 0.0857,
          "xwoba_edge": -0.5714,
          "xba_edge": -0.1857,
          "xslg_edge": 0.1143,
          "barrel_edge": -0.1111,
          "hard_hit_edge": 0.0,
          "exit_velocity_edge": -0.72,
          "sweet_spot_edge": -0.1667,
          "launch_angle_hr_bonus": 0.0
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "reason": "Baseball Savant hitter xwOBA, xBA, xSLG, exit velocity, launch angle, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted offense; ESPN rank is attached for reporting only"
}

Savant Pitcher Quality

Source: data/all_players_stats.csv embedded Savant pitcher and movement features. Starter quality modifies opposing run scoring and pitcher strikeout/walk/homer expectations.

TeamPitcherAvailableESPN RankQualitySample WtRun PrevK FactorBB FactorHR FactorRegressionxwOBAwOBAK%BB%Whiff%Barrel%HardHit%
Away STLTrue295-0.67340.98801.05720.97460.99211.1243neutral0.35900.358021.208.8022.5010.2044.70
Home KCTrue176-0.13850.92001.01180.98630.93741.0456neutral0.32000.302021.705.8023.909.4039.70

Pitch Movement And Arsenal

TeamPitcherMovement AvailablePrimary PitchPitchesVeloSpinAxisHBIVBDropRel XRel ZExtensionArm AngleMovement Score
Away STLTrueNone8989.26229700000000-0.0264
Home KCTrueNone9086.89221700000000-0.1588
Run FactorValue
away_runs_vs_home_pitcher1.0109
home_runs_vs_away_pitcher1.0565
home_pitcher_quality_edge0.5349
Raw Savant Pitcher Quality JSON
{
  "applied": true,
  "home_pitcher": {
    "available": true,
    "pitcher_id": "702070",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 230.0,
      "k_percent": 21.7,
      "bb_percent": 5.8,
      "woba": 0.302,
      "xwoba": 0.32,
      "sweet_spot_percent": 38.3,
      "barrel_batted_rate": 9.4,
      "hard_hit_percent": 39.7,
      "avg_best_speed": 77.521,
      "avg_hyper_speed": 94.3712,
      "whiff_percent": 23.9,
      "swing_percent": 48.1
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": -0.1676,
      "command_and_miss": 0.0286,
      "regression_edge": -0.5143,
      "xwoba_edge": -0.1429,
      "barrel_edge": -0.4667,
      "hard_hit_edge": -0.2,
      "whiff_edge": -0.2571,
      "bb_edge": 0.85,
      "pitch_design_score": -0.1588
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "702070",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 90,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 90,
        "pitch_usage": 0.0,
        "release_speed": 86.89238376821358,
        "release_spin_rate": 2216.5960244296075,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 90,
          "pitch_usage": 0.0,
          "release_speed": 86.89238376821358,
          "release_spin_rate": 2216.5960244296075,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 86.8924,
        "release_spin_rate": 2216.596,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": -0.1588,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": -1.1346,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": -0.1385,
    "sample_weight": 0.92,
    "run_prevention_factor": 1.0118,
    "strikeout_factor": 0.9863,
    "walk_factor": 0.9374,
    "homer_factor": 1.0456,
    "woba_minus_xwoba": -0.018,
    "regression_flag": "neutral",
    "espn_rank": {
      "available": true,
      "player_id": "702070",
      "espn_id": 4417208,
      "player_name": "Noah Cameron",
      "team": "KC",
      "role": "pitcher",
      "espn_rank": 176,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 176,
        "gp_value": 13.0,
        "gp_rank": 329,
        "gs_value": 13.0,
        "gs_rank": 69,
        "qs_value": 5.0,
        "qs_rank": 51,
        "era_value": 4.1142,
        "era_rank": null,
        "w_value": 3.0,
        "w_rank": 107,
        "l_value": 4.0,
        "l_rank": 62,
        "sv_value": 0.0,
        "sv_rank": 172,
        "hld_value": 0.0,
        "hld_rank": 256,
        "ip_value": 70.0,
        "ip_rank": 76,
        "h_value": 68.0,
        "h_rank": 64,
        "er_value": 32.0,
        "er_rank": 73,
        "hr_value": 8.0,
        "hr_rank": 79,
        "bb_value": 17.0,
        "bb_rank": 157,
        "k_value": 64.0,
        "k_rank": 71,
        "k_per_9_value": 8.228572,
        "k_per_9_rank": 25,
        "whip_value": 1.2142,
        "whip_rank": null,
        "war_value": 0.56,
        "war_rank": null
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "away_pitcher": {
    "available": true,
    "pitcher_id": "669461",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 247.0,
      "k_percent": 21.2,
      "bb_percent": 8.8,
      "woba": 0.358,
      "xwoba": 0.359,
      "sweet_spot_percent": 40.5,
      "barrel_batted_rate": 10.2,
      "hard_hit_percent": 44.7,
      "avg_best_speed": 81.3665,
      "avg_hyper_speed": 95.2442,
      "whiff_percent": 22.5,
      "swing_percent": 47.5
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": -1.1045,
      "command_and_miss": -0.2236,
      "regression_edge": -0.0286,
      "xwoba_edge": -1.2571,
      "barrel_edge": -0.6444,
      "hard_hit_edge": -0.9143,
      "whiff_edge": -0.4571,
      "bb_edge": 0.1,
      "pitch_design_score": -0.0264
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "669461",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 89,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 89,
        "pitch_usage": 0.0,
        "release_speed": 89.25733332288168,
        "release_spin_rate": 2297.1598472172614,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 89,
          "pitch_usage": 0.0,
          "release_speed": 89.25733332288168,
          "release_spin_rate": 2297.1598472172614,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 89.2573,
        "release_spin_rate": 2297.1598,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": -0.0264,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": -0.1886,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": -0.6734,
    "sample_weight": 0.988,
    "run_prevention_factor": 1.0572,
    "strikeout_factor": 0.9746,
    "walk_factor": 0.9921,
    "homer_factor": 1.1243,
    "woba_minus_xwoba": -0.001,
    "regression_flag": "neutral",
    "espn_rank": {
      "available": true,
      "player_id": "669461",
      "espn_id": 41173,
      "player_name": "Matthew Liberatore",
      "team": "STL",
      "role": "pitcher",
      "espn_rank": 295,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 295,
        "gp_value": 14.0,
        "gp_rank": 279,
        "gs_value": 14.0,
        "gs_rank": 37,
        "qs_value": 3.0,
        "qs_rank": 91,
        "era_value": 4.7122,
        "era_rank": null,
        "w_value": 3.0,
        "w_rank": 107,
        "l_value": 3.0,
        "l_rank": 110,
        "sv_value": 0.0,
        "sv_rank": 172,
        "hld_value": 0.0,
        "hld_rank": 256,
        "ip_value": 70.2,
        "ip_rank": 72,
        "h_value": 79.0,
        "h_rank": 24,
        "er_value": 37.0,
        "er_rank": 40,
        "hr_value": 14.0,
        "hr_rank": 15,
        "bb_value": 27.0,
        "bb_rank": 42,
        "k_value": 65.0,
        "k_rank": 63,
        "k_per_9_value": 8.278302,
        "k_per_9_rank": 23,
        "whip_value": 1.5,
        "whip_rank": null,
        "war_value": 0.14,
        "war_rank": null
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "run_factors": {
    "away_runs_vs_home_pitcher": 1.0109,
    "home_runs_vs_away_pitcher": 1.0565,
    "home_pitcher_quality_edge": 0.5349
  },
  "score_before": {
    "away_runs": 2.9322,
    "home_runs": 3.0065
  },
  "score_after": {
    "away_runs": 2.964,
    "home_runs": 3.1764,
    "home_win_probability": 0.5277
  },
  "reason": "Baseball Savant xwOBA, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted starter run prevention"
}

Team Form Snapshot

TeamLast-10 W-LWin %R/GRA/GRun DiffStreakOffenseDefense
Away STL10-510.1641.102.70-94coldstrong
Home KC13-520.2001.103.90-181coldaverage

Season Run Differential

TeamRecordWin %Run DiffRD/GameAvailable
Away STL40-320.556110.153True
Home KC30-450.400-51-0.680True
Signal---0.833-1.066applied=True

Recent Head-to-Head

DateMatchupScoreWinnerMarginType
------

Player/Game Reconciliation

LayerABHRHRRBIBBSO
Game target STL--4----
Game target KC--3----
Player finalized STL33950518
Player finalized KC30900118
Player model fractional STL32.238.044.581.244.522.636.23
Player model fractional KC30.076.623.350.873.182.867.21
Simulation box STL381160644
Simulation box KC325111610

If player finalized rows and game target disagree, the report now exposes that gap instead of hiding it. Fractional model rows show the unrounded prop layer before box-score realization.

Pitching Snapshot

TeamRolePitcherPre IPPre ERPre SOPre HPre BBWeighted ERAWeighted WHIPBox Sync
Away STLStarterMatthew Liberatore4.2016524.911.44True
Away STLMiddle RelieverGeorge Soriano1.1001023.471.19True
Away STLMiddle RelieverJoJo Romero102015.401.51True
Away STLMiddle RelieverRiley O'Brien101004.051.54True
Away STLMiddle RelieverRyne Stanek100014.461.07True
Home KCStarterNoah Cameron5.2053723.621.10True
Home KCMiddle RelieverAlex Lange101103.581.39True
Home KCMiddle RelieverDaniel Lynch IV100125.161.26True
Home KCMiddle RelieverLucas Erceg100004.211.53True
Home KCMiddle RelieverMatt Strahm0.1000007.621.49True
Home KCMiddle RelieverJohn Schreiber000003.141.00True
Home KCRelieverSteven Cruz010203.611.19-
Market-line comparison is not rendered because no local odds or sportsbook line CSV was found in data/. Add a real odds source before using market deltas as a model feature.

Player Boost/Deboost Impact Summary

SideTeamRolePosPlayerDominantChangedBoostedDeboostedBetterWorseLargest MetricLargest DeltaDirectionEffect
awaySTLbatterSSMasyn Winnbetter95463predicted_RBI2.5900boostbetter
awaySTLbatterCFJosé Fermínworse103728predicted_AB2.4870boostbetter
awaySTLbatterLFNelson Velázquezbetter116574predicted_AB2.3900boostbetter
awaySTLpitcherStarterMatthew Liberatoreworse21102predicted_H2.0000boostworse
awaySTLpitcherMiddle RelieverRyne Stanekbetter10110predicted_H-2.0000deboostbetter
homeKCpitcherRelieverSteven Cruzworse32103predicted_H2.0000boostworse
homeKCbatter1BJac Caglianoneworse113829predicted_SO1.8680boostworse
awaySTLbatter2BJJ Wetherholtworse112938predicted_BB1.5150boostbetter
homeKCbatterCFLane Thomasbetter115665predicted_BB1.5090boostbetter
awaySTLbatter3BBlaze Jordanworse113829predicted_AB1.5000boostbetter
homeKCbatterRFStarling Marteworse102819predicted_AB1.4000boostbetter
homeKCbatterCSalvador Perezworse11110011predicted_SO1.1910boostworse
homeKCbatterSSBobby Witt Jr.worse113829predicted_H-1.1600deboostworse
awaySTLbatterDHIván Herrerabetter116574predicted_H1.0300boostbetter
awaySTLbatter1BAlec Burlesonbetter96354predicted_H0.9800boostbetter
homeKCbatterLFIsaac Collinsbetter115665predicted_SO-0.9520deboostbetter
homeKCbatterDHCarter Jensenworse92718predicted_SO0.9240boostworse
homeKCbatter2BMichael Masseyworse102819predicted_BB0.9070boostbetter
awaySTLbatterCPedro Pagésworse114756predicted_2B0.8420boostbetter
homeKCbatter3BNick Loftinbetter105564predicted_2B0.7300boostbetter
awaySTLbatterRFJordan Walkerdeboosted83544predicted_BB0.7000boostbetter
homeKCpitcherStarterNoah Cameronworse10101predicted_IP-0.4667deboostworse
homeKCpitcherMiddle RelieverMatt Strahmworse10101predicted_IP-0.2333deboostworse
awaySTLpitcherMiddle RelieverGeorge Sorianobetter11010predicted_IP0.1000boostbetter
homeKCpitcherMiddle RelieverJohn Schreiberworse10101predicted_IP-0.1000deboostworse

This table ranks players whose JSON evolution changed materially. Boost/deboost is numeric movement; better/worse is role-aware.

Away Team: STL

Away Pitcher Deep Analysis

FieldValue
PitcherMatthew Liberatore
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score-0.6734
ESPN Rank295
Movement AvailableTrue
Primary Pitch-
Movement Score-0.0264
Avg Velo89.2573
Avg Spin2297.1598
HB Inches0
IVB Inches0
Release Extension0
Pre IP4.2000
Pre ER1
Pre H5
Pre BB2
Pre SO6
Season ERA4.7123
Season WHIP1.5000
Role Avg IP5.0480
Recent Avg IP4.7330
Last Start IP4.1000
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "STL",
    "games": 81,
    "wins": 46,
    "losses": 35,
    "win_pct": 0.5679,
    "runs_scored": 352.0,
    "runs_allowed": 328.0,
    "run_differential": 24.0,
    "run_differential_per_game": 0.2963,
    "avg_runs_scored": 4.3457,
    "avg_runs_allowed": 4.0494,
    "offense_index": 0.9641,
    "defense_index": 1.1131,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 3.8,
      "run_differential": 15.0
    },
    "available": true,
    "quality_score": 0.1289
  },
  "opponent": {
    "team": "KC",
    "games": 83,
    "wins": 31,
    "losses": 52,
    "win_pct": 0.3735,
    "runs_scored": 323.0,
    "runs_allowed": 391.0,
    "run_differential": -68.0,
    "run_differential_per_game": -0.8193,
    "avg_runs_scored": 3.8916,
    "avg_runs_allowed": 4.7108,
    "offense_index": 0.8634,
    "defense_index": 0.9568,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.9,
      "avg_runs_allowed": 5.1,
      "run_differential": -2.0
    },
    "available": true,
    "quality_score": -0.2425
  },
  "edges": {
    "quality_edge": 0.3714,
    "offense_edge": -0.0359,
    "opponent_offense_edge": -0.1366,
    "defense_strength": 0.1131,
    "opponent_defense_weakness": 0.0432,
    "recent_win_pct_edge": 0.2
  },
  "player_factors": {
    "ip": 1.0237,
    "run_prevention": 0.9483,
    "strikeout": 1.0221
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "669461",
    "profile": {
      "available": true,
      "pitcher_id": "669461",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 247.0,
        "k_percent": 21.2,
        "bb_percent": 8.8,
        "woba": 0.358,
        "xwoba": 0.359,
        "sweet_spot_percent": 40.5,
        "barrel_batted_rate": 10.2,
        "hard_hit_percent": 44.7,
        "avg_best_speed": 81.3665,
        "avg_hyper_speed": 95.2442,
        "whiff_percent": 22.5,
        "swing_percent": 47.5
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -1.1045,
        "command_and_miss": -0.2236,
        "regression_edge": -0.0286,
        "xwoba_edge": -1.2571,
        "barrel_edge": -0.6444,
        "hard_hit_edge": -0.9143,
        "whiff_edge": -0.4571,
        "bb_edge": 0.1,
        "pitch_design_score": -0.0264
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "669461",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 89,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 89,
          "pitch_usage": 0.0,
          "release_speed": 89.25733332288168,
          "release_spin_rate": 2297.1598472172614,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 89,
            "pitch_usage": 0.0,
            "release_speed": 89.25733332288168,
            "release_spin_rate": 2297.1598472172614,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 89.2573,
          "release_spin_rate": 2297.1598,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.0264,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -0.1886,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": -0.6734,
      "sample_weight": 0.988,
      "run_prevention_factor": 1.0572,
      "strikeout_factor": 0.9746,
      "walk_factor": 0.9921,
      "homer_factor": 1.1243,
      "woba_minus_xwoba": -0.001,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "669461",
        "espn_id": 41173,
        "player_name": "Matthew Liberatore",
        "team": "STL",
        "role": "pitcher",
        "espn_rank": 295,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 295,
          "gp_value": 14.0,
          "gp_rank": 279,
          "gs_value": 14.0,
          "gs_rank": 37,
          "qs_value": 3.0,
          "qs_rank": 91,
          "era_value": 4.7122,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 3.0,
          "l_rank": 110,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 70.2,
          "ip_rank": 72,
          "h_value": 79.0,
          "h_rank": 24,
          "er_value": 37.0,
          "er_rank": 40,
          "hr_value": 14.0,
          "hr_rank": 15,
          "bb_value": 27.0,
          "bb_rank": 42,
          "k_value": 65.0,
          "k_rank": 63,
          "k_per_9_value": 8.278302,
          "k_per_9_rank": 23,
          "whip_value": 1.5,
          "whip_rank": null,
          "war_value": 0.14,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 3.0,
        "factor": 1.0565,
        "adjusted": 3
      },
      "predicted_H": {
        "original": 6.0,
        "factor": 1.0565,
        "adjusted": 6
      },
      "predicted_BB": {
        "original": 2.0,
        "factor": 0.9922,
        "adjusted": 2
      },
      "predicted_HR": {
        "original": 1.0,
        "factor": 1.1228,
        "adjusted": 1
      },
      "predicted_SO": {
        "original": 6.0,
        "factor": 0.9749,
        "adjusted": 6
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 49.2,
    "ER": 27,
    "H": 54,
    "BB": 19,
    "SO": 53,
    "HR": 9,
    "ERA": 4.892617449664429,
    "WHIP": 1.4697986577181206,
    "K9": 9.604026845637582,
    "HR9": 1.6308724832214763,
    "games_pitched": 10,
    "quality_starts": 2,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "669461",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 89,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 89,
    "pitch_usage": 0.0,
    "release_speed": 89.25733332288168,
    "release_spin_rate": 2297.1598472172614,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 89,
      "pitch_usage": 0.0,
      "release_speed": 89.25733332288168,
      "release_spin_rate": 2297.1598472172614,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 89.2573,
    "release_spin_rate": 2297.1598,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.0264,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -0.1886,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "role": "pitcher",
  "player_id": "669461",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 14,
  "reference_playing_time": 5.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 23.2,
        "ER": 14.0,
        "R": 16.0,
        "H": 26.0,
        "BB": 9.0,
        "SO": 31.0,
        "HR": 5.0,
        "BF": 104.0,
        "Pitches": 417.0
      },
      "per_game": {
        "IP": 4.2,
        "ER": 2.8,
        "R": 3.2,
        "H": 5.2,
        "BB": 1.8,
        "SO": 6.2,
        "HR": 1.0,
        "BF": 20.8,
        "Pitches": 83.4
      },
      "rates": {
        "ERA": 5.3239,
        "WHIP": 1.4789,
        "ER_per_IP": 0.59155,
        "H_per_IP": 1.09859,
        "BB_per_IP": 0.38028,
        "SO_per_IP": 1.30986,
        "HR_per_IP": 0.21127
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 49.2,
        "ER": 27.0,
        "R": 29.0,
        "H": 54.0,
        "BB": 19.0,
        "SO": 53.0,
        "HR": 9.0,
        "BF": 213.0,
        "Pitches": 829.0
      },
      "per_game": {
        "IP": 5.0,
        "ER": 2.7,
        "R": 2.9,
        "H": 5.4,
        "BB": 1.9,
        "SO": 5.3,
        "HR": 0.9,
        "BF": 21.3,
        "Pitches": 82.9
      },
      "rates": {
        "ERA": 4.8926,
        "WHIP": 1.4698,
        "ER_per_IP": 0.54362,
        "H_per_IP": 1.08725,
        "BB_per_IP": 0.38255,
        "SO_per_IP": 1.06711,
        "HR_per_IP": 0.18121
      }
    },
    "season": {
      "games": 14,
      "totals": {
        "IP": 70.2,
        "ER": 37.0,
        "R": 39.0,
        "H": 79.0,
        "BB": 27.0,
        "SO": 65.0,
        "HR": 14.0,
        "BF": 307.0,
        "Pitches": 1180.0
      },
      "per_game": {
        "IP": 5.0,
        "ER": 2.6429,
        "R": 2.7857,
        "H": 5.6429,
        "BB": 1.9286,
        "SO": 4.6429,
        "HR": 1.0,
        "BF": 21.9286,
        "Pitches": 84.2857
      },
      "rates": {
        "ERA": 4.7123,
        "WHIP": 1.5,
        "ER_per_IP": 0.52358,
        "H_per_IP": 1.11792,
        "BB_per_IP": 0.38208,
        "SO_per_IP": 0.91981,
        "HR_per_IP": 0.19811
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 5.0,
    "predicted_ER": 2.666,
    "predicted_H": 5.211,
    "predicted_BB": 1.842,
    "predicted_SO": 5.338,
    "predicted_HR": 0.902,
    "predicted_ERA": 4.9079,
    "predicted_WHIP": 1.4424
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.4612,
  "form_weight": 0.5388,
  "form_reliability": 0.7368,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 14.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7368,
    "prior_weight": 0.2632
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 5.0,
      "form": 5.0,
      "final": 5.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 1.0,
      "form": 2.666,
      "final": 1.8976,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 3.0,
      "form": 5.211,
      "final": 4.1913,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 2.0,
      "form": 1.842,
      "final": 1.9149,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 6.0,
      "form": 5.338,
      "final": 5.6433,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 1.0,
      "form": 0.902,
      "final": 0.9472,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.9079,
      "final": 4.9079,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.4424,
      "final": 1.4424,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherGeorge Soriano
RoleMiddle Reliever
Projection Source-
Savant Quality Score-0.0558
ESPN Rank172
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1.1000
Pre ER0
Pre H0
Pre BB2
Pre SO1
Season ERA2.9670
Season WHIP1.1209
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "STL",
    "games": 81,
    "wins": 46,
    "losses": 35,
    "win_pct": 0.5679,
    "runs_scored": 352.0,
    "runs_allowed": 328.0,
    "run_differential": 24.0,
    "run_differential_per_game": 0.2963,
    "avg_runs_scored": 4.3457,
    "avg_runs_allowed": 4.0494,
    "offense_index": 0.9641,
    "defense_index": 1.1131,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 3.8,
      "run_differential": 15.0
    },
    "available": true,
    "quality_score": 0.1289
  },
  "opponent": {
    "team": "KC",
    "games": 83,
    "wins": 31,
    "losses": 52,
    "win_pct": 0.3735,
    "runs_scored": 323.0,
    "runs_allowed": 391.0,
    "run_differential": -68.0,
    "run_differential_per_game": -0.8193,
    "avg_runs_scored": 3.8916,
    "avg_runs_allowed": 4.7108,
    "offense_index": 0.8634,
    "defense_index": 0.9568,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.9,
      "avg_runs_allowed": 5.1,
      "run_differential": -2.0
    },
    "available": true,
    "quality_score": -0.2425
  },
  "edges": {
    "quality_edge": 0.3714,
    "offense_edge": -0.0359,
    "opponent_offense_edge": -0.1366,
    "defense_strength": 0.1131,
    "opponent_defense_weakness": 0.0432,
    "recent_win_pct_edge": 0.2
  },
  "player_factors": {
    "ip": 1.0237,
    "run_prevention": 0.9483,
    "strikeout": 1.0221
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "666277",
    "profile": {
      "available": true,
      "pitcher_id": "666277",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 89.0,
        "k_percent": 21.6,
        "bb_percent": 8.0,
        "woba": 0.285,
        "xwoba": 0.325,
        "sweet_spot_percent": 26.4,
        "barrel_batted_rate": 10.3,
        "hard_hit_percent": 42.5,
        "avg_best_speed": 80.8864,
        "avg_hyper_speed": 94.9046,
        "whiff_percent": 32.5,
        "swing_percent": 49.4
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.1762,
        "command_and_miss": 0.3421,
        "regression_edge": -1.1429,
        "xwoba_edge": -0.2857,
        "barrel_edge": -0.6667,
        "hard_hit_edge": -0.6,
        "whiff_edge": 0.9714,
        "bb_edge": 0.3,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "666277",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": -0.0558,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0047,
      "strikeout_factor": 1.0152,
      "walk_factor": 0.9892,
      "homer_factor": 1.0387,
      "woba_minus_xwoba": -0.04,
      "regression_flag": "negative_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "666277",
        "espn_id": 4917836,
        "player_name": "George Soriano",
        "team": "STL",
        "role": "pitcher",
        "espn_rank": 172,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 172,
          "gp_value": 31.0,
          "gp_rank": 46,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.967,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 2.0,
          "sv_rank": 56,
          "hld_value": 9.0,
          "hld_rank": 31,
          "ip_value": 30.1,
          "ip_rank": 246,
          "h_value": 24.0,
          "h_rank": 276,
          "er_value": 10.0,
          "er_rank": 324,
          "hr_value": 4.0,
          "hr_rank": 199,
          "bb_value": 10.0,
          "bb_rank": 303,
          "k_value": 27.0,
          "k_rank": 277,
          "k_per_9_value": 8.010989,
          "k_per_9_rank": 30,
          "whip_value": 1.1208,
          "whip_rank": null,
          "war_value": 0.59,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 1.0021,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 1.0021,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9951,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0174,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0068,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.2,
    "ER": 2,
    "H": 9,
    "BB": 0,
    "SO": 11,
    "HR": 1,
    "ERA": 1.6874999999999998,
    "WHIP": 0.8437499999999999,
    "K9": 9.281249999999998,
    "HR9": 0.8437499999999999,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-14T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "666277",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.024,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5464,
    "prior_weight": 0.4536
  },
  "role": "pitcher",
  "player_id": "666277",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 31,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.2,
        "ER": 2.0,
        "R": 2.0,
        "H": 7.0,
        "BB": 0.0,
        "SO": 5.0,
        "HR": 1.0,
        "BF": 24.0,
        "Pitches": 79.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4,
        "R": 0.4,
        "H": 1.4,
        "BB": 0.0,
        "SO": 1.0,
        "HR": 0.2,
        "BF": 4.8,
        "Pitches": 15.8
      },
      "rates": {
        "ERA": 3.1765,
        "WHIP": 1.2353,
        "ER_per_IP": 0.35294,
        "H_per_IP": 1.23529,
        "BB_per_IP": 0.0,
        "SO_per_IP": 0.88235,
        "HR_per_IP": 0.17647
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.2,
        "ER": 2.0,
        "R": 2.0,
        "H": 9.0,
        "BB": 0.0,
        "SO": 11.0,
        "HR": 1.0,
        "BF": 41.0,
        "Pitches": 138.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.9,
        "BB": 0.0,
        "SO": 1.1,
        "HR": 0.1,
        "BF": 4.1,
        "Pitches": 13.8
      },
      "rates": {
        "ERA": 1.6875,
        "WHIP": 0.8438,
        "ER_per_IP": 0.1875,
        "H_per_IP": 0.84375,
        "BB_per_IP": 0.0,
        "SO_per_IP": 1.03125,
        "HR_per_IP": 0.09375
      }
    },
    "season": {
      "games": 31,
      "totals": {
        "IP": 30.1,
        "ER": 10.0,
        "R": 11.0,
        "H": 24.0,
        "BB": 10.0,
        "SO": 27.0,
        "HR": 4.0,
        "BF": 125.0,
        "Pitches": 468.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3226,
        "R": 0.3548,
        "H": 0.7742,
        "BB": 0.3226,
        "SO": 0.871,
        "HR": 0.129,
        "BF": 4.0323,
        "Pitches": 15.0968
      },
      "rates": {
        "ERA": 2.967,
        "WHIP": 1.1209,
        "ER_per_IP": 0.32967,
        "H_per_IP": 0.79121,
        "BB_per_IP": 0.32967,
        "SO_per_IP": 0.89011,
        "HR_per_IP": 0.13187
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.386,
    "predicted_H": 0.993,
    "predicted_BB": 0.201,
    "predicted_SO": 0.937,
    "predicted_HR": 0.142,
    "predicted_ERA": 3.4729,
    "predicted_WHIP": 1.1941
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5416,
  "form_weight": 0.4584,
  "form_reliability": 0.5464,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.024,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5464,
    "prior_weight": 0.4536
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.386,
      "final": 0.1769,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.993,
      "final": 0.4551,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 2.0,
      "form": 0.201,
      "final": 1.1754,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 0.937,
      "final": 0.9711,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.142,
      "final": 0.0651,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.4729,
      "final": 3.4729,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1941,
      "final": 1.1941,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherJoJo Romero
RoleMiddle Reliever
Projection Source-
Savant Quality Score-0.2072
ESPN Rank237
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H0
Pre BB1
Pre SO2
Season ERA3.9375
Season WHIP1.3125
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "STL",
    "games": 81,
    "wins": 46,
    "losses": 35,
    "win_pct": 0.5679,
    "runs_scored": 352.0,
    "runs_allowed": 328.0,
    "run_differential": 24.0,
    "run_differential_per_game": 0.2963,
    "avg_runs_scored": 4.3457,
    "avg_runs_allowed": 4.0494,
    "offense_index": 0.9641,
    "defense_index": 1.1131,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 3.8,
      "run_differential": 15.0
    },
    "available": true,
    "quality_score": 0.1289
  },
  "opponent": {
    "team": "KC",
    "games": 83,
    "wins": 31,
    "losses": 52,
    "win_pct": 0.3735,
    "runs_scored": 323.0,
    "runs_allowed": 391.0,
    "run_differential": -68.0,
    "run_differential_per_game": -0.8193,
    "avg_runs_scored": 3.8916,
    "avg_runs_allowed": 4.7108,
    "offense_index": 0.8634,
    "defense_index": 0.9568,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.9,
      "avg_runs_allowed": 5.1,
      "run_differential": -2.0
    },
    "available": true,
    "quality_score": -0.2425
  },
  "edges": {
    "quality_edge": 0.3714,
    "offense_edge": -0.0359,
    "opponent_offense_edge": -0.1366,
    "defense_strength": 0.1131,
    "opponent_defense_weakness": 0.0432,
    "recent_win_pct_edge": 0.2
  },
  "player_factors": {
    "ip": 1.0237,
    "run_prevention": 0.9483,
    "strikeout": 1.0221
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "668941",
    "profile": {
      "available": true,
      "pitcher_id": "668941",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 103.0,
        "k_percent": 23.4,
        "bb_percent": 8.8,
        "woba": 0.325,
        "xwoba": 0.344,
        "sweet_spot_percent": 37.8,
        "barrel_batted_rate": 6.7,
        "hard_hit_percent": 46.7,
        "avg_best_speed": 82.264,
        "avg_hyper_speed": 96.3183,
        "whiff_percent": 23.1,
        "swing_percent": 38.8
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.7011,
        "command_and_miss": -0.0521,
        "regression_edge": -0.5429,
        "xwoba_edge": -0.8286,
        "barrel_edge": 0.1333,
        "hard_hit_edge": -1.2,
        "whiff_edge": -0.3714,
        "bb_edge": 0.1,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "668941",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": -0.2072,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0176,
      "strikeout_factor": 0.9956,
      "walk_factor": 0.9964,
      "homer_factor": 1.028,
      "woba_minus_xwoba": -0.019,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "668941",
        "espn_id": 40456,
        "player_name": "JoJo Romero",
        "team": "STL",
        "role": "pitcher",
        "espn_rank": 237,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 237,
          "gp_value": 33.0,
          "gp_rank": 22,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 3.9375,
          "era_rank": null,
          "w_value": 0.0,
          "w_rank": 404,
          "l_value": 2.0,
          "l_rank": 185,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 17.0,
          "hld_rank": 1,
          "ip_value": 32.0,
          "ip_rank": 220,
          "h_value": 30.0,
          "h_rank": 211,
          "er_value": 14.0,
          "er_rank": 225,
          "hr_value": 4.0,
          "hr_rank": 199,
          "bb_value": 12.0,
          "bb_rank": 246,
          "k_value": 32.0,
          "k_rank": 222,
          "k_per_9_value": 9.0,
          "k_per_9_rank": 27,
          "whip_value": 1.3125,
          "whip_rank": null,
          "war_value": 0.32,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 1.0079,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 1.0079,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9984,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0126,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 0.998,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 8.1,
    "ER": 6,
    "H": 11,
    "BB": 3,
    "SO": 11,
    "HR": 1,
    "ERA": 6.480000000000001,
    "WHIP": 1.6800000000000002,
    "K9": 11.880000000000003,
    "HR9": 1.08,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": true
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-14T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "668941",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.355,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5597,
    "prior_weight": 0.4403
  },
  "role": "pitcher",
  "player_id": "668941",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 33,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.0,
        "ER": 3.0,
        "R": 3.0,
        "H": 6.0,
        "BB": 1.0,
        "SO": 4.0,
        "HR": 1.0,
        "BF": 19.0,
        "Pitches": 68.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 0.6,
        "R": 0.6,
        "H": 1.2,
        "BB": 0.2,
        "SO": 0.8,
        "HR": 0.2,
        "BF": 3.8,
        "Pitches": 13.6
      },
      "rates": {
        "ERA": 6.75,
        "WHIP": 1.75,
        "ER_per_IP": 0.75,
        "H_per_IP": 1.5,
        "BB_per_IP": 0.25,
        "SO_per_IP": 1.0,
        "HR_per_IP": 0.25
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 8.1,
        "ER": 6.0,
        "R": 6.0,
        "H": 11.0,
        "BB": 3.0,
        "SO": 11.0,
        "HR": 1.0,
        "BF": 40.0,
        "Pitches": 144.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 0.6,
        "R": 0.6,
        "H": 1.1,
        "BB": 0.3,
        "SO": 1.1,
        "HR": 0.1,
        "BF": 4.0,
        "Pitches": 14.4
      },
      "rates": {
        "ERA": 6.48,
        "WHIP": 1.68,
        "ER_per_IP": 0.72,
        "H_per_IP": 1.32,
        "BB_per_IP": 0.36,
        "SO_per_IP": 1.32,
        "HR_per_IP": 0.12
      }
    },
    "season": {
      "games": 33,
      "totals": {
        "IP": 32.0,
        "ER": 14.0,
        "R": 14.0,
        "H": 30.0,
        "BB": 12.0,
        "SO": 32.0,
        "HR": 4.0,
        "BF": 137.0,
        "Pitches": 547.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4242,
        "R": 0.4242,
        "H": 0.9091,
        "BB": 0.3636,
        "SO": 0.9697,
        "HR": 0.1212,
        "BF": 4.1515,
        "Pitches": 16.5758
      },
      "rates": {
        "ERA": 3.9375,
        "WHIP": 1.3125,
        "ER_per_IP": 0.4375,
        "H_per_IP": 0.9375,
        "BB_per_IP": 0.375,
        "SO_per_IP": 1.0,
        "HR_per_IP": 0.125
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.51,
    "predicted_H": 0.996,
    "predicted_BB": 0.285,
    "predicted_SO": 0.881,
    "predicted_HR": 0.14,
    "predicted_ERA": 5.3952,
    "predicted_WHIP": 1.5056
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.536,
  "form_weight": 0.464,
  "form_reliability": 0.5597,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.355,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5597,
    "prior_weight": 0.4403
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.51,
      "final": 0.2366,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.996,
      "final": 0.4621,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 0.285,
      "final": 0.6683,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 2.0,
      "form": 0.881,
      "final": 1.4808,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.14,
      "final": 0.065,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 5.3952,
      "final": 5.3952,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.5056,
      "final": 1.5056,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherRiley O'Brien
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.0604
ESPN Rank255
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H0
Pre BB0
Pre SO1
Season ERA3.7340
Season WHIP1.2128
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "STL",
    "games": 81,
    "wins": 46,
    "losses": 35,
    "win_pct": 0.5679,
    "runs_scored": 352.0,
    "runs_allowed": 328.0,
    "run_differential": 24.0,
    "run_differential_per_game": 0.2963,
    "avg_runs_scored": 4.3457,
    "avg_runs_allowed": 4.0494,
    "offense_index": 0.9641,
    "defense_index": 1.1131,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 3.8,
      "run_differential": 15.0
    },
    "available": true,
    "quality_score": 0.1289
  },
  "opponent": {
    "team": "KC",
    "games": 83,
    "wins": 31,
    "losses": 52,
    "win_pct": 0.3735,
    "runs_scored": 323.0,
    "runs_allowed": 391.0,
    "run_differential": -68.0,
    "run_differential_per_game": -0.8193,
    "avg_runs_scored": 3.8916,
    "avg_runs_allowed": 4.7108,
    "offense_index": 0.8634,
    "defense_index": 0.9568,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.9,
      "avg_runs_allowed": 5.1,
      "run_differential": -2.0
    },
    "available": true,
    "quality_score": -0.2425
  },
  "edges": {
    "quality_edge": 0.3714,
    "offense_edge": -0.0359,
    "opponent_offense_edge": -0.1366,
    "defense_strength": 0.1131,
    "opponent_defense_weakness": 0.0432,
    "recent_win_pct_edge": 0.2
  },
  "player_factors": {
    "ip": 1.0237,
    "run_prevention": 0.9483,
    "strikeout": 1.0221
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "676617",
    "profile": {
      "available": true,
      "pitcher_id": "676617",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 96.0,
        "k_percent": 24.1,
        "bb_percent": 8.3,
        "woba": 0.286,
        "xwoba": 0.315,
        "sweet_spot_percent": 30.6,
        "barrel_batted_rate": 4.8,
        "hard_hit_percent": 38.8,
        "avg_best_speed": 76.3884,
        "avg_hyper_speed": 94.2499,
        "whiff_percent": 28.3,
        "swing_percent": 46.9
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.2585,
        "command_and_miss": 0.2779,
        "regression_edge": -0.8286,
        "xwoba_edge": 0.0,
        "barrel_edge": 0.5556,
        "hard_hit_edge": -0.0714,
        "whiff_edge": 0.3714,
        "bb_edge": 0.225,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "676617",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.0604,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9949,
      "strikeout_factor": 1.0108,
      "walk_factor": 0.9919,
      "homer_factor": 0.9813,
      "woba_minus_xwoba": -0.029,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "676617",
        "espn_id": 41509,
        "player_name": "Riley O'Brien",
        "team": "STL",
        "role": "pitcher",
        "espn_rank": 255,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 255,
          "gp_value": 31.0,
          "gp_rank": 46,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 3.734,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 3.0,
          "l_rank": 110,
          "sv_value": 18.0,
          "sv_rank": 3,
          "hld_value": 1.0,
          "hld_rank": 198,
          "ip_value": 31.1,
          "ip_rank": 229,
          "h_value": 27.0,
          "h_rank": 246,
          "er_value": 13.0,
          "er_rank": 243,
          "hr_value": 1.0,
          "hr_rank": 453,
          "bb_value": 11.0,
          "bb_rank": 272,
          "k_value": 32.0,
          "k_rank": 222,
          "k_per_9_value": 9.191489,
          "k_per_9_rank": 26,
          "whip_value": 1.2127,
          "whip_rank": null,
          "war_value": 0.26,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9977,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9977,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9964,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9916,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0049,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.1,
    "ER": 7,
    "H": 10,
    "BB": 9,
    "SO": 7,
    "HR": 0,
    "ERA": 6.096774193548388,
    "WHIP": 1.838709677419355,
    "K9": 6.096774193548388,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": true
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "676617",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.222,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5545,
    "prior_weight": 0.4455
  },
  "role": "pitcher",
  "player_id": "676617",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 31,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.0,
        "ER": 1.0,
        "R": 1.0,
        "H": 3.0,
        "BB": 6.0,
        "SO": 3.0,
        "HR": 0.0,
        "BF": 24.0,
        "Pitches": 95.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.6,
        "BB": 1.2,
        "SO": 0.6,
        "HR": 0.0,
        "BF": 4.8,
        "Pitches": 19.0
      },
      "rates": {
        "ERA": 1.8,
        "WHIP": 1.8,
        "ER_per_IP": 0.2,
        "H_per_IP": 0.6,
        "BB_per_IP": 1.2,
        "SO_per_IP": 0.6,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.1,
        "ER": 7.0,
        "R": 8.0,
        "H": 10.0,
        "BB": 9.0,
        "SO": 7.0,
        "HR": 0.0,
        "BF": 51.0,
        "Pitches": 193.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.7,
        "R": 0.8,
        "H": 1.0,
        "BB": 0.9,
        "SO": 0.7,
        "HR": 0.0,
        "BF": 5.1,
        "Pitches": 19.3
      },
      "rates": {
        "ERA": 6.0968,
        "WHIP": 1.8387,
        "ER_per_IP": 0.67742,
        "H_per_IP": 0.96774,
        "BB_per_IP": 0.87097,
        "SO_per_IP": 0.67742,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 31,
      "totals": {
        "IP": 31.1,
        "ER": 13.0,
        "R": 15.0,
        "H": 27.0,
        "BB": 11.0,
        "SO": 32.0,
        "HR": 1.0,
        "BF": 133.0,
        "Pitches": 520.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4194,
        "R": 0.4839,
        "H": 0.871,
        "BB": 0.3548,
        "SO": 1.0323,
        "HR": 0.0323,
        "BF": 4.2903,
        "Pitches": 16.7742
      },
      "rates": {
        "ERA": 3.734,
        "WHIP": 1.2128,
        "ER_per_IP": 0.41489,
        "H_per_IP": 0.8617,
        "BB_per_IP": 0.35106,
        "SO_per_IP": 1.02128,
        "HR_per_IP": 0.03191
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.451,
    "predicted_H": 0.867,
    "predicted_BB": 0.669,
    "predicted_SO": 0.812,
    "predicted_HR": 0.069,
    "predicted_ERA": 4.0549,
    "predicted_WHIP": 1.5362
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5382,
  "form_weight": 0.4618,
  "form_reliability": 0.5545,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.222,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5545,
    "prior_weight": 0.4455
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.451,
      "final": 0.2083,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.867,
      "final": 0.4004,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.669,
      "final": 0.3089,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 0.812,
      "final": 0.9132,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.069,
      "final": 0.0319,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.0549,
      "final": 4.0549,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.5362,
      "final": 1.5362,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherRyne Stanek
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.0607
ESPN Rank622
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H0
Pre BB1
Pre SO0
Season ERA5.2159
Season WHIP1.5000
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "STL",
    "games": 81,
    "wins": 46,
    "losses": 35,
    "win_pct": 0.5679,
    "runs_scored": 352.0,
    "runs_allowed": 328.0,
    "run_differential": 24.0,
    "run_differential_per_game": 0.2963,
    "avg_runs_scored": 4.3457,
    "avg_runs_allowed": 4.0494,
    "offense_index": 0.9641,
    "defense_index": 1.1131,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 3.8,
      "run_differential": 15.0
    },
    "available": true,
    "quality_score": 0.1289
  },
  "opponent": {
    "team": "KC",
    "games": 83,
    "wins": 31,
    "losses": 52,
    "win_pct": 0.3735,
    "runs_scored": 323.0,
    "runs_allowed": 391.0,
    "run_differential": -68.0,
    "run_differential_per_game": -0.8193,
    "avg_runs_scored": 3.8916,
    "avg_runs_allowed": 4.7108,
    "offense_index": 0.8634,
    "defense_index": 0.9568,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.9,
      "avg_runs_allowed": 5.1,
      "run_differential": -2.0
    },
    "available": true,
    "quality_score": -0.2425
  },
  "edges": {
    "quality_edge": 0.3714,
    "offense_edge": -0.0359,
    "opponent_offense_edge": -0.1366,
    "defense_strength": 0.1131,
    "opponent_defense_weakness": 0.0432,
    "recent_win_pct_edge": 0.2
  },
  "player_factors": {
    "ip": 1.0237,
    "run_prevention": 0.9483,
    "strikeout": 1.0221
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "592773",
    "profile": {
      "available": true,
      "pitcher_id": "592773",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 100.0,
        "k_percent": 27.3,
        "bb_percent": 13.6,
        "woba": 0.332,
        "xwoba": 0.31,
        "sweet_spot_percent": 31.6,
        "barrel_batted_rate": 7.9,
        "hard_hit_percent": 36.8,
        "avg_best_speed": 79.1564,
        "avg_hyper_speed": 95.0728,
        "whiff_percent": 32.5,
        "swing_percent": 49.7
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.0703,
        "command_and_miss": 0.4286,
        "regression_edge": 0.6286,
        "xwoba_edge": 0.1429,
        "barrel_edge": -0.1333,
        "hard_hit_edge": 0.2143,
        "whiff_edge": 0.9714,
        "bb_edge": -1.1,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "592773",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.0607,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9948,
      "strikeout_factor": 1.0298,
      "walk_factor": 1.0396,
      "homer_factor": 0.999,
      "woba_minus_xwoba": 0.022,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "592773",
        "espn_id": 33301,
        "player_name": "Ryne Stanek",
        "team": "STL",
        "role": "pitcher",
        "espn_rank": 622,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 622,
          "gp_value": 32.0,
          "gp_rank": 31,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 5.2159,
          "era_rank": null,
          "w_value": 2.0,
          "w_rank": 180,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 1.0,
          "sv_rank": 86,
          "hld_value": 12.0,
          "hld_rank": 9,
          "ip_value": 29.1,
          "ip_rank": 266,
          "h_value": 26.0,
          "h_rank": 257,
          "er_value": 17.0,
          "er_rank": 186,
          "hr_value": 5.0,
          "hr_rank": 157,
          "bb_value": 18.0,
          "bb_rank": 148,
          "k_value": 36.0,
          "k_rank": 191,
          "k_per_9_value": 11.045455,
          "k_per_9_rank": 19,
          "whip_value": 1.5,
          "whip_rank": null,
          "war_value": -0.41,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 1.0,
        "factor": 0.9977,
        "adjusted": 1
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9977,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0178,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9996,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0134,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.0,
    "ER": 3,
    "H": 6,
    "BB": 2,
    "SO": 9,
    "HR": 3,
    "ERA": 2.7,
    "WHIP": 0.8,
    "K9": 8.1,
    "HR9": 2.7,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "592773",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.825,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5381,
    "prior_weight": 0.4619
  },
  "role": "pitcher",
  "player_id": "592773",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 32,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.0,
        "ER": 3.0,
        "R": 3.0,
        "H": 3.0,
        "BB": 0.0,
        "SO": 5.0,
        "HR": 3.0,
        "BF": 18.0,
        "Pitches": 66.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.6,
        "R": 0.6,
        "H": 0.6,
        "BB": 0.0,
        "SO": 1.0,
        "HR": 0.6,
        "BF": 3.6,
        "Pitches": 13.2
      },
      "rates": {
        "ERA": 5.4,
        "WHIP": 0.6,
        "ER_per_IP": 0.6,
        "H_per_IP": 0.6,
        "BB_per_IP": 0.0,
        "SO_per_IP": 1.0,
        "HR_per_IP": 0.6
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.0,
        "ER": 3.0,
        "R": 3.0,
        "H": 6.0,
        "BB": 2.0,
        "SO": 9.0,
        "HR": 3.0,
        "BF": 38.0,
        "Pitches": 146.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3,
        "R": 0.3,
        "H": 0.6,
        "BB": 0.2,
        "SO": 0.9,
        "HR": 0.3,
        "BF": 3.8,
        "Pitches": 14.6
      },
      "rates": {
        "ERA": 2.7,
        "WHIP": 0.8,
        "ER_per_IP": 0.3,
        "H_per_IP": 0.6,
        "BB_per_IP": 0.2,
        "SO_per_IP": 0.9,
        "HR_per_IP": 0.3
      }
    },
    "season": {
      "games": 32,
      "totals": {
        "IP": 29.1,
        "ER": 17.0,
        "R": 19.0,
        "H": 26.0,
        "BB": 18.0,
        "SO": 36.0,
        "HR": 5.0,
        "BF": 132.0,
        "Pitches": 563.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.5312,
        "R": 0.5938,
        "H": 0.8125,
        "BB": 0.5625,
        "SO": 1.125,
        "HR": 0.1562,
        "BF": 4.125,
        "Pitches": 17.5938
      },
      "rates": {
        "ERA": 5.2159,
        "WHIP": 1.5,
        "ER_per_IP": 0.57955,
        "H_per_IP": 0.88636,
        "BB_per_IP": 0.61364,
        "SO_per_IP": 1.22727,
        "HR_per_IP": 0.17045
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.496,
    "predicted_H": 0.804,
    "predicted_BB": 0.271,
    "predicted_SO": 0.977,
    "predicted_HR": 0.288,
    "predicted_ERA": 4.4598,
    "predicted_WHIP": 1.075
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5452,
  "form_weight": 0.4548,
  "form_reliability": 0.5381,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.825,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5381,
    "prior_weight": 0.4619
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.496,
      "final": 0.2256,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 2.0,
      "form": 0.804,
      "final": 1.456,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 1.0,
      "form": 0.271,
      "final": 0.6684,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 0.977,
      "final": 0.4444,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.288,
      "final": 0.131,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.4598,
      "final": 4.4598,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.075,
      "final": 1.075,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Iván Herrera (671056) · BATTER · DH · Team STL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 261
All-history rows before 20260618: 261
System season_avg: 0.2570
Data season_avg (2026 season-to-date): 0.2594
Diff (system - data): -0.0024
System opponent_avg: 0.3030

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1830.0000.000Hitting_2B0.2070.000-0.2070.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.0604.0004.000Hitting_AB3.7823.0000.2181.000
predicted_AVG0.2400.5000.250Hitting_AVG0.2590.3330.2410.167
predicted_BB0.5631.0001.000Hitting_BB0.5820.0000.4181.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.9702.0001.000Hitting_H0.9811.0001.0191.000
predicted_HR0.1800.0000.000Hitting_HR0.1150.000-0.1150.000
predicted_OBP0.3850.6000.400Hitting_OBP0.3890.5000.2110.100
predicted_R0.6481.0001.000Hitting_R0.6170.0000.3831.000
predicted_RBI0.5101.0000.000Hitting_RBI0.4600.0000.5401.000
predicted_SLG0.4340.5000.250Hitting_SLG0.4050.3330.0950.167
predicted_SO0.7040.0001.000Hitting_SO0.7970.000-0.7970.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics11
Boosted Metrics6
Deboosted Metrics5
Better Metrics7
Worse Metrics4
Biggest Boostpredicted_H: 0.9700 -> 2.0000 (boost 1.0300, better)
Biggest Deboostpredicted_SO: 0.7040 -> 0.0000 (deboost -0.7040, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend42231predicted_OBP: 0.3850 -> 0.3982 (boost 0.0132, better)predicted_AB: 4.0600 -> 3.8139 (deboost -0.2461, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_OBP: 0.3982 -> 0.3471 (deboost -0.0511, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling84435predicted_BB: 0.5766 -> 1.0000 (boost 0.4234, better)predicted_RBI: 0.5017 -> 0.0000 (deboost -0.5017, worse)AB rounded to 4 (raw=4.06), rates preserved: AVG=0.233 HR/AB=0.047
5bvp_blend00000--Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.333)
6consistency_constraints11010predicted_R: 0.7158 -> 1.0000 (boost 0.2842, better)-Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context21111predicted_OBP: 0.3471 -> 0.4000 (boost 0.0529, better)predicted_SLG: 0.4420 -> 0.2500 (deboost -0.1920, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference32130predicted_H: 1.0000 -> 2.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
9current_json_final21111predicted_SLG: 0.2500 -> 0.4420 (boost 0.1920, better)predicted_OBP: 0.4000 -> 0.3471 (deboost -0.0529, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "671056",
  "player_name": "Iván Herrera",
  "position": "DH",
  "team": "STL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.183,
        "predicted_3B": 0.0,
        "predicted_AB": 4.06,
        "predicted_AVG": 0.24,
        "predicted_BB": 0.563,
        "predicted_H": 0.97,
        "predicted_HR": 0.18,
        "predicted_OBP": 0.385,
        "predicted_R": 0.648,
        "predicted_RBI": 0.51,
        "predicted_SLG": 0.434,
        "predicted_SO": 0.704
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1605,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.8139,
        "predicted_AVG": 0.2444,
        "predicted_BB": 0.5711,
        "predicted_H": 0.9279,
        "predicted_HBP": 0.451,
        "predicted_HR": 0.1889,
        "predicted_OBP": 0.3982,
        "predicted_R": 0.6888,
        "predicted_RBI": 0.4828,
        "predicted_SLG": 0.4456,
        "predicted_SO": 0.6135
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.183,
          "after": 0.1605,
          "delta": -0.0225,
          "percent_delta": -0.123,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.06,
          "after": 3.8139,
          "delta": -0.2461,
          "percent_delta": -0.0606,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.24,
          "after": 0.2444,
          "delta": 0.0044,
          "percent_delta": 0.0183,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.563,
          "after": 0.5711,
          "delta": 0.0081,
          "percent_delta": 0.0144,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.97,
          "after": 0.9279,
          "delta": -0.0421,
          "percent_delta": -0.0434,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.18,
          "after": 0.1889,
          "delta": 0.0089,
          "percent_delta": 0.0494,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.385,
          "after": 0.3982,
          "delta": 0.0132,
          "percent_delta": 0.0343,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.648,
          "after": 0.6888,
          "delta": 0.0408,
          "percent_delta": 0.063,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.51,
          "after": 0.4828,
          "delta": -0.0272,
          "percent_delta": -0.0533,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.434,
          "after": 0.4456,
          "delta": 0.0116,
          "percent_delta": 0.0267,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.704,
          "after": 0.6135,
          "delta": -0.0905,
          "percent_delta": -0.1286,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 2,
        "deboosted_metrics": 2,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.385,
          "after": 0.3982,
          "delta": 0.0132,
          "percent_delta": 0.0343,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.06,
          "after": 3.8139,
          "delta": -0.2461,
          "percent_delta": -0.0606,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 71
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1605,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.8139,
        "predicted_AVG": 0.2483,
        "predicted_BB": 0.5766,
        "predicted_H": 0.9471,
        "predicted_HBP": 0.451,
        "predicted_HR": 0.1924,
        "predicted_OBP": 0.3471,
        "predicted_R": 0.7158,
        "predicted_RBI": 0.5017,
        "predicted_SLG": 0.442,
        "predicted_SO": 0.6075
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1605,
          "after": 0.1605,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8139,
          "after": 3.8139,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2444,
          "after": 0.2483,
          "delta": 0.0039,
          "percent_delta": 0.016,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.5711,
          "after": 0.5766,
          "delta": 0.0055,
          "percent_delta": 0.0096,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9279,
          "after": 0.9471,
          "delta": 0.0192,
          "percent_delta": 0.0207,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.451,
          "after": 0.451,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1889,
          "after": 0.1924,
          "delta": 0.0035,
          "percent_delta": 0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3982,
          "after": 0.3471,
          "delta": -0.0511,
          "percent_delta": -0.1283,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.6888,
          "after": 0.7158,
          "delta": 0.027,
          "percent_delta": 0.0392,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4828,
          "after": 0.5017,
          "delta": 0.0189,
          "percent_delta": 0.0391,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4456,
          "after": 0.442,
          "delta": -0.0036,
          "percent_delta": -0.0081,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.6135,
          "after": 0.6075,
          "delta": -0.006,
          "percent_delta": -0.0098,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3982,
          "after": 0.3471,
          "delta": -0.0511,
          "percent_delta": -0.1283,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.06), rates preserved: AVG=0.233 HR/AB=0.047",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1605,
          "after": 0.0,
          "delta": -0.1605,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.8139,
          "after": 4.0,
          "delta": 0.1861,
          "percent_delta": 0.0488,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.5766,
          "after": 1.0,
          "delta": 0.4234,
          "percent_delta": 0.7343,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9471,
          "after": 1.0,
          "delta": 0.0529,
          "percent_delta": 0.0559,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.451,
          "after": 0.0,
          "delta": -0.451,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1924,
          "after": 0.0,
          "delta": -0.1924,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5017,
          "after": 0.0,
          "delta": -0.5017,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6075,
          "after": 1.0,
          "delta": 0.3925,
          "percent_delta": 0.6461,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 4,
        "deboosted_metrics": 4,
        "better_metrics": 3,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.5766,
          "after": 1.0,
          "delta": 0.4234,
          "percent_delta": 0.7343,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.5017,
          "after": 0.0,
          "delta": -0.5017,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.333)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9333,
        "bvp": 0.0667
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.7158,
          "after": 1.0,
          "delta": 0.2842,
          "percent_delta": 0.397,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.7158,
          "after": 1.0,
          "delta": 0.2842,
          "percent_delta": 0.397,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.4,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2483,
          "after": 0.25,
          "delta": 0.0017,
          "percent_delta": 0.0068,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3471,
          "after": 0.4,
          "delta": 0.0529,
          "percent_delta": 0.1524,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.442,
          "after": 0.25,
          "delta": -0.192,
          "percent_delta": -0.4344,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3471,
          "after": 0.4,
          "delta": 0.0529,
          "percent_delta": 0.1524,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.442,
          "after": 0.25,
          "delta": -0.192,
          "percent_delta": -0.4344,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2483,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3471,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.442,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2483,
          "delta": -0.0017,
          "percent_delta": -0.0067,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3471,
          "delta": -0.0529,
          "percent_delta": -0.1324,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.442,
          "delta": 0.192,
          "percent_delta": 0.7679,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.442,
          "delta": 0.192,
          "percent_delta": 0.7679,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3471,
          "delta": -0.0529,
          "percent_delta": -0.1324,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.183,
        "after": 0.0,
        "delta": -0.183,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.06,
        "after": 4.0,
        "delta": -0.06,
        "percent_delta": -0.0148,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.24,
        "after": 0.2483,
        "delta": 0.0083,
        "percent_delta": 0.0346,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.563,
        "after": 1.0,
        "delta": 0.437,
        "percent_delta": 0.7762,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.97,
        "after": 2.0,
        "delta": 1.03,
        "percent_delta": 1.0619,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.18,
        "after": 0.0,
        "delta": -0.18,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.385,
        "after": 0.3471,
        "delta": -0.0379,
        "percent_delta": -0.0984,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.648,
        "after": 1.0,
        "delta": 0.352,
        "percent_delta": 0.5432,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.51,
        "after": 1.0,
        "delta": 0.49,
        "percent_delta": 0.9608,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.434,
        "after": 0.442,
        "delta": 0.008,
        "percent_delta": 0.0184,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.704,
        "after": 0.0,
        "delta": -0.704,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 6,
      "deboosted_metrics": 5,
      "better_metrics": 7,
      "worse_metrics": 4,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 0.97,
        "after": 2.0,
        "delta": 1.03,
        "percent_delta": 1.0619,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.704,
        "after": 0.0,
        "delta": -0.704,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.183-
predicted_3B0.000-
predicted_AB4.060-
predicted_AVG0.240-
predicted_BB0.563-
predicted_H0.970-
predicted_HR0.180-
predicted_OBP0.385-
predicted_R0.648-
predicted_RBI0.510-
predicted_SLG0.434-
predicted_SO0.704-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.161-0.022
predicted_3B0.0000.000
predicted_AB3.814-0.246
predicted_AVG0.2440.004
predicted_BB0.5710.008
predicted_H0.928-0.042
predicted_HBP0.451-
predicted_HR0.1890.009
predicted_OBP0.3980.013
predicted_R0.6890.041
predicted_RBI0.483-0.027
predicted_SLG0.4460.012
predicted_SO0.614-0.090
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1610.000
predicted_3B0.0000.000
predicted_AB3.8140.000
predicted_AVG0.2480.004
predicted_BB0.5770.005
predicted_H0.9470.019
predicted_HBP0.4510.000
predicted_HR0.1920.003
predicted_OBP0.347-0.051
predicted_R0.7160.027
predicted_RBI0.5020.019
predicted_SLG0.442-0.004
predicted_SO0.608-0.006
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.06), rates preserved: AVG=0.233 HR/AB=0.047

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.333)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.161
predicted_3B0.000-0.000
predicted_AB4.0000.186
predicted_AVG0.2500.002
predicted_BB1.0000.423
predicted_H1.0000.053
predicted_HR0.000-0.192
predicted_OBP0.4000.053
predicted_R1.0000.284
predicted_RBI0.000-0.502
predicted_SLG0.250-0.192
predicted_SO1.0000.392
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R1.0000.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 71
Reference playing time: 4.060
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-15.0003.0000.0000.0002.0003.0004.0003.0000.0000.20000.45450.60000.20000.13330.20000.20000.0000
last_100.2010-32.0009.0001.0000.0002.0003.00010.0007.0003.0000.28120.50000.50000.28120.06250.09380.21880.0938
season0.6071-261.00067.00013.0000.0009.00030.00046.00040.00050.0000.25670.39130.41000.25670.03450.11490.15330.1916
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1300
predicted_3B0.0010
predicted_AB3.4810
predicted_AVG0.2503
predicted_BB0.5820
predicted_H0.8710
predicted_HBP0.4510
predicted_HR0.2010
predicted_OBP0.4161
predicted_R0.7440
predicted_RBI0.4460
predicted_SLG0.4612
predicted_SO0.4910
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.18300.13000.1605model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.06003.48103.8139model_form_blend
predicted_AVG0.24000.25030.2444model_form_blend
predicted_BB0.56300.58200.5711model_form_blend
predicted_H0.97000.87100.9279model_form_blend
predicted_HBP-0.45100.4510form_only
predicted_HR0.18000.20100.1889model_form_blend
predicted_OBP0.38500.41610.3982model_form_blend
predicted_R0.64800.74400.6888model_form_blend
predicted_RBI0.51000.44600.4828model_form_blend
predicted_SLG0.43400.46120.4456model_form_blend
predicted_SO0.70400.49100.6135model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date261
Season rows before report date261
Report year2026
Profile rows used71
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB4
H2
2B0
3B0
HR0
R1
RBI1
BB1
SO0
SF0
HBP0
season_avg0.257

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB1
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP1
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260617_SD@STL
game_typefull
mlbID671056
playerID671056
playerNameIván Herrera
posDH
startedTrue
startingPositionDH
teamSTL
teamID26
game_date2026-06-17
sl_k_percent15.3
sl_bb_percent12.8
sl_woba0.366
sl_xwoba0.369
sl_xba0.267
sl_xslg0.421
sl_sweet_spot_percent31.0
sl_barrel_batted_rate7.0
sl_hard_hit_percent41.7
sl_exit_velocity_avg89.6
sl_launch_angle_avg7.2
sl_whiff_percent19.7
sl_swing_percent43.0
Nelson Velázquez (676369) · BATTER · LF · Team STL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 11
All-history rows before 20260618: 11
System season_avg: 0.3330
Data season_avg (2026 season-to-date): 0.3333
Diff (system - data): -0.0003
System opponent_avg: 0.3330

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0930.0000.000Hitting_2B0.0910.000-0.0910.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.6105.0003.000Hitting_AB2.4551.0002.5454.000
predicted_AVG0.2820.6000.333Hitting_AVG0.3330.0000.2670.600
predicted_BB0.0930.0000.000Hitting_BB0.0910.000-0.0910.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.7403.0001.000Hitting_H0.8180.0002.1823.000
predicted_HR0.1400.0000.000Hitting_HR0.1820.000-0.1820.000
predicted_OBP0.3260.6000.333Hitting_OBP0.3790.0000.2210.600
predicted_R0.4631.0000.000Hitting_R0.4550.0000.5451.000
predicted_RBI0.4401.0001.000Hitting_RBI0.5450.0000.4551.000
predicted_SLG0.4630.6000.333Hitting_SLG0.5930.0000.0070.600
predicted_SO0.7410.0001.000Hitting_SO0.7271.000-0.727-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics11
Boosted Metrics6
Deboosted Metrics5
Better Metrics7
Worse Metrics4
Biggest Boostpredicted_AB: 2.6100 -> 5.0000 (boost 2.3900, better)
Biggest Deboostpredicted_SO: 0.7410 -> 0.0000 (deboost -0.7410, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend22020predicted_AB: 2.6100 -> 2.7642 (boost 0.1542, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot32121predicted_SLG: 0.4703 -> 0.4912 (boost 0.0209, better)predicted_OBP: 0.3279 -> 0.3184 (deboost -0.0095, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling74334predicted_RBI: 0.4801 -> 1.0000 (boost 0.5199, better)predicted_HR: 0.1505 -> 0.0000 (deboost -0.1505, worse)AB rounded to 3 (raw=2.76), rates preserved: AVG=0.289 HR/AB=0.054
5consistency_constraints10101-predicted_R: 0.4852 -> 0.0000 (deboost -0.4852, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2895 -> 0.3330 (boost 0.0435, better)predicted_SLG: 0.4912 -> 0.3330 (deboost -0.1582, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference43140predicted_AB: 3.0000 -> 5.0000 (boost 2.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.4912 (boost 0.1582, better)predicted_AVG: 0.3330 -> 0.2895 (deboost -0.0435, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "676369",
  "player_name": "Nelson Velázquez",
  "position": "LF",
  "team": "STL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.093,
        "predicted_3B": 0.0,
        "predicted_AB": 2.61,
        "predicted_AVG": 0.282,
        "predicted_BB": 0.093,
        "predicted_H": 0.74,
        "predicted_HR": 0.14,
        "predicted_OBP": 0.326,
        "predicted_R": 0.463,
        "predicted_RBI": 0.44,
        "predicted_SLG": 0.463,
        "predicted_SO": 0.741
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1023,
        "predicted_3B": 0.0018,
        "predicted_AB": 2.7642,
        "predicted_AVG": 0.2825,
        "predicted_BB": 0.1159,
        "predicted_H": 0.784,
        "predicted_HBP": 0.049,
        "predicted_HR": 0.1478,
        "predicted_OBP": 0.3279,
        "predicted_R": 0.4669,
        "predicted_RBI": 0.462,
        "predicted_SLG": 0.4703,
        "predicted_SO": 0.7732
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.093,
          "after": 0.1023,
          "delta": 0.0093,
          "percent_delta": 0.1,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0018,
          "delta": 0.0018,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.61,
          "after": 2.7642,
          "delta": 0.1542,
          "percent_delta": 0.0591,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.282,
          "after": 0.2825,
          "delta": 0.0005,
          "percent_delta": 0.0018,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.093,
          "after": 0.1159,
          "delta": 0.0229,
          "percent_delta": 0.2462,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.74,
          "after": 0.784,
          "delta": 0.044,
          "percent_delta": 0.0595,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.14,
          "after": 0.1478,
          "delta": 0.0078,
          "percent_delta": 0.0557,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.326,
          "after": 0.3279,
          "delta": 0.0019,
          "percent_delta": 0.0058,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.463,
          "after": 0.4669,
          "delta": 0.0039,
          "percent_delta": 0.0084,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.44,
          "after": 0.462,
          "delta": 0.022,
          "percent_delta": 0.05,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.463,
          "after": 0.4703,
          "delta": 0.0073,
          "percent_delta": 0.0158,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.741,
          "after": 0.7732,
          "delta": 0.0322,
          "percent_delta": 0.0435,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.61,
          "after": 2.7642,
          "delta": 0.1542,
          "percent_delta": 0.0591,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 11
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1023,
        "predicted_3B": 0.0018,
        "predicted_AB": 2.7642,
        "predicted_AVG": 0.2895,
        "predicted_BB": 0.117,
        "predicted_H": 0.8002,
        "predicted_HBP": 0.049,
        "predicted_HR": 0.1505,
        "predicted_OBP": 0.3184,
        "predicted_R": 0.4852,
        "predicted_RBI": 0.4801,
        "predicted_SLG": 0.4912,
        "predicted_SO": 0.7657
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1023,
          "after": 0.1023,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0018,
          "after": 0.0018,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.7642,
          "after": 2.7642,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2825,
          "after": 0.2895,
          "delta": 0.007,
          "percent_delta": 0.0248,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1159,
          "after": 0.117,
          "delta": 0.0011,
          "percent_delta": 0.0095,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.784,
          "after": 0.8002,
          "delta": 0.0162,
          "percent_delta": 0.0207,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.049,
          "after": 0.049,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1478,
          "after": 0.1505,
          "delta": 0.0027,
          "percent_delta": 0.0183,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3279,
          "after": 0.3184,
          "delta": -0.0095,
          "percent_delta": -0.029,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4669,
          "after": 0.4852,
          "delta": 0.0183,
          "percent_delta": 0.0392,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.462,
          "after": 0.4801,
          "delta": 0.0181,
          "percent_delta": 0.0392,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4703,
          "after": 0.4912,
          "delta": 0.0209,
          "percent_delta": 0.0444,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7732,
          "after": 0.7657,
          "delta": -0.0075,
          "percent_delta": -0.0097,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.4703,
          "after": 0.4912,
          "delta": 0.0209,
          "percent_delta": 0.0444,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3279,
          "after": 0.3184,
          "delta": -0.0095,
          "percent_delta": -0.029,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.76), rates preserved: AVG=0.289 HR/AB=0.054",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1023,
          "after": 0.0,
          "delta": -0.1023,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0018,
          "after": 0.0,
          "delta": -0.0018,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.7642,
          "after": 3.0,
          "delta": 0.2358,
          "percent_delta": 0.0853,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.117,
          "after": 0.0,
          "delta": -0.117,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8002,
          "after": 1.0,
          "delta": 0.1998,
          "percent_delta": 0.2497,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.049,
          "after": 0.0,
          "delta": -0.049,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1505,
          "after": 0.0,
          "delta": -0.1505,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4801,
          "after": 1.0,
          "delta": 0.5199,
          "percent_delta": 1.0829,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7657,
          "after": 1.0,
          "delta": 0.2343,
          "percent_delta": 0.306,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 4,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.4801,
          "after": 1.0,
          "delta": 0.5199,
          "percent_delta": 1.0829,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_HR",
          "before": 0.1505,
          "after": 0.0,
          "delta": -0.1505,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4852,
          "after": 0.0,
          "delta": -0.4852,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4852,
          "after": 0.0,
          "delta": -0.4852,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2895,
          "after": 0.333,
          "delta": 0.0435,
          "percent_delta": 0.1503,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3184,
          "after": 0.333,
          "delta": 0.0146,
          "percent_delta": 0.0459,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4912,
          "after": 0.333,
          "delta": -0.1582,
          "percent_delta": -0.3221,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2895,
          "after": 0.333,
          "delta": 0.0435,
          "percent_delta": 0.1503,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4912,
          "after": 0.333,
          "delta": -0.1582,
          "percent_delta": -0.3221,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 3.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 5.0,
          "delta": 2.0,
          "percent_delta": 0.6667,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 4,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 5.0,
          "delta": 2.0,
          "percent_delta": 0.6667,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.2895,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 3.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_LF": 0.0,
        "predicted_OBP": 0.3184,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4912,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2895,
          "delta": -0.0435,
          "percent_delta": -0.1306,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3184,
          "delta": -0.0146,
          "percent_delta": -0.044,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4912,
          "delta": 0.1582,
          "percent_delta": 0.4751,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4912,
          "delta": 0.1582,
          "percent_delta": 0.4751,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2895,
          "delta": -0.0435,
          "percent_delta": -0.1306,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.093,
        "after": 0.0,
        "delta": -0.093,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.61,
        "after": 5.0,
        "delta": 2.39,
        "percent_delta": 0.9157,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.282,
        "after": 0.2895,
        "delta": 0.0075,
        "percent_delta": 0.0266,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.093,
        "after": 0.0,
        "delta": -0.093,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.74,
        "after": 3.0,
        "delta": 2.26,
        "percent_delta": 3.0541,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.14,
        "after": 0.0,
        "delta": -0.14,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.326,
        "after": 0.3184,
        "delta": -0.0076,
        "percent_delta": -0.0233,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.463,
        "after": 1.0,
        "delta": 0.537,
        "percent_delta": 1.1598,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.44,
        "after": 1.0,
        "delta": 0.56,
        "percent_delta": 1.2727,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.463,
        "after": 0.4912,
        "delta": 0.0282,
        "percent_delta": 0.0609,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.741,
        "after": 0.0,
        "delta": -0.741,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 6,
      "deboosted_metrics": 5,
      "better_metrics": 7,
      "worse_metrics": 4,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 2.61,
        "after": 5.0,
        "delta": 2.39,
        "percent_delta": 0.9157,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.741,
        "after": 0.0,
        "delta": -0.741,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.093-
predicted_3B0.000-
predicted_AB2.610-
predicted_AVG0.282-
predicted_BB0.093-
predicted_H0.740-
predicted_HR0.140-
predicted_OBP0.326-
predicted_R0.463-
predicted_RBI0.440-
predicted_SLG0.463-
predicted_SO0.741-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1020.009
predicted_3B0.0020.002
predicted_AB2.7640.154
predicted_AVG0.2820.001
predicted_BB0.1160.023
predicted_H0.7840.044
predicted_HBP0.049-
predicted_HR0.1480.008
predicted_OBP0.3280.002
predicted_R0.4670.004
predicted_RBI0.4620.022
predicted_SLG0.4700.007
predicted_SO0.7730.032
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1020.000
predicted_3B0.0020.000
predicted_AB2.7640.000
predicted_AVG0.2890.007
predicted_BB0.1170.001
predicted_H0.8000.016
predicted_HBP0.0490.000
predicted_HR0.1500.003
predicted_OBP0.318-0.010
predicted_R0.4850.018
predicted_RBI0.4800.018
predicted_SLG0.4910.021
predicted_SO0.766-0.007
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.76), rates preserved: AVG=0.289 HR/AB=0.054

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.102
predicted_3B0.000-0.002
predicted_AB3.0000.236
predicted_AVG0.3330.044
predicted_BB0.000-0.117
predicted_H1.0000.200
predicted_HR0.000-0.150
predicted_OBP0.3330.015
predicted_R0.000-0.485
predicted_RBI1.0000.520
predicted_SLG0.333-0.158
predicted_SO1.0000.234
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB5.0002.000
BB0.0000.000
CS0.0000.000
H3.0002.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R1.0001.000
RBI1.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 11
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-10.0003.0000.0000.0001.0002.0002.0000.0004.0000.30000.30000.60000.30000.10000.20000.00000.4000
last_100.2010-24.0007.0001.0000.0001.0003.0003.0001.0008.0000.29170.32000.45830.29170.04170.12500.04170.3333
season0.6011-27.0009.0001.0000.0002.0006.0005.0001.0008.0000.33330.37930.59260.33330.07410.22220.03700.2963
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1240
predicted_3B0.0060
predicted_AB3.1220
predicted_AVG0.2838
predicted_BB0.1690
predicted_H0.8860
predicted_HBP0.0490
predicted_HR0.1660
predicted_OBP0.3322
predicted_R0.4760
predicted_RBI0.5130
predicted_SLG0.4872
predicted_SO0.8480
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.09300.12400.1023model_form_blend
predicted_3B0.00000.00600.0018model_form_blend
predicted_AB2.61003.12202.7642model_form_blend
predicted_AVG0.28200.28380.2825model_form_blend
predicted_BB0.09300.16900.1159model_form_blend
predicted_H0.74000.88600.7840model_form_blend
predicted_HBP-0.04900.0490form_only
predicted_HR0.14000.16600.1478model_form_blend
predicted_OBP0.32600.33220.3279model_form_blend
predicted_R0.46300.47600.4669model_form_blend
predicted_RBI0.44000.51300.4620model_form_blend
predicted_SLG0.46300.48720.4703model_form_blend
predicted_SO0.74100.84800.7732model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date11
Season rows before report date11
Report year2026
Profile rows used11
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB5
H3
2B0
3B0
HR0
R1
RBI1
BB0
SO0
SF0
HBP0
season_avg0.333

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB1
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB0
Hitting_battingOrder7
Hitting_substitutionOrder1
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedPH
gameID20260617_SD@STL
game_typeph
mlbID676369
noteStruck out for Crooks in the 6th.
playerID676369
playerNameNelson Velázquez
posRF
startedFalse
startingPositionPH
teamSTL
teamID26
game_date2026-06-17
sl_k_percent27.6
sl_bb_percent3.4
sl_woba0.42
sl_xwoba0.424
sl_xba0.324
sl_xslg0.624
sl_sweet_spot_percent42.1
sl_barrel_batted_rate15.8
sl_hard_hit_percent68.4
sl_exit_velocity_avg93.4
sl_launch_angle_avg7.6
sl_whiff_percent32.7
sl_swing_percent48.5
JJ Wetherholt (802139) · BATTER · 2B · Team STL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 258
All-history rows before 20260618: 258
System season_avg: 0.2600
Data season_avg (2026 season-to-date): 0.2413
Diff (system - data): 0.0187
System opponent_avg: 0.0000
System season_avg diverges from 2026 season-to-date by 0.0187. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1060.0000.000Hitting_2B0.1200.000-0.1200.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.3803.0004.000Hitting_AB3.9194.000-0.919-1.000
predicted_AVG0.2500.0000.250Hitting_AVG0.2410.250-0.241-0.250
predicted_BB0.4852.0000.000Hitting_BB0.5580.0001.4422.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H1.1000.0001.000Hitting_H0.9461.000-0.946-1.000
predicted_HR0.1500.0000.000Hitting_HR0.1670.000-0.1670.000
predicted_OBP0.3560.4000.250Hitting_OBP0.3600.2500.0400.150
predicted_R0.6670.0001.000Hitting_R0.6980.000-0.6980.000
predicted_RBI0.5500.0001.000Hitting_RBI0.4770.000-0.4770.000
predicted_SB-0.0000.000BaseRunning_SB0.1120.000-0.1120.000
predicted_SLG0.4170.0000.250Hitting_SLG0.4000.250-0.400-0.250
predicted_SO0.7420.0001.000Hitting_SO0.8220.000-0.8220.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics2
Deboosted Metrics9
Better Metrics3
Worse Metrics8
Biggest Boostpredicted_BB: 0.4850 -> 2.0000 (boost 1.5150, better)
Biggest Deboostpredicted_AB: 4.3800 -> 3.0000 (deboost -1.3800, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend32121predicted_AVG: 0.2500 -> 0.2682 (boost 0.0182, better)predicted_AB: 4.3800 -> 4.2313 (deboost -0.1487, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot31212predicted_AVG: 0.2682 -> 0.2735 (boost 0.0053, better)predicted_OBP: 0.3637 -> 0.3462 (deboost -0.0175, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling82617predicted_RBI: 0.5694 -> 1.0000 (boost 0.4306, better)predicted_BB: 0.4700 -> 0.0000 (deboost -0.4700, worse)AB rounded to 4 (raw=4.38), rates preserved: AVG=0.264 HR/AB=0.035
5consistency_constraints11010predicted_R: 0.6610 -> 1.0000 (boost 0.3390, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.4042 -> 0.2500 (deboost -0.1542, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference61524predicted_BB: 0.0000 -> 2.0000 (boost 2.0000, better)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2500 -> 0.4042 (boost 0.1542, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "802139",
  "player_name": "JJ Wetherholt",
  "position": "2B",
  "team": "STL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.106,
        "predicted_3B": 0.0,
        "predicted_AB": 4.38,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.485,
        "predicted_H": 1.1,
        "predicted_HR": 0.15,
        "predicted_OBP": 0.356,
        "predicted_R": 0.667,
        "predicted_RBI": 0.55,
        "predicted_SLG": 0.417,
        "predicted_SO": 0.742
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0937,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.2313,
        "predicted_AVG": 0.2682,
        "predicted_BB": 0.4655,
        "predicted_H": 1.1339,
        "predicted_HBP": 0.089,
        "predicted_HR": 0.15,
        "predicted_OBP": 0.3637,
        "predicted_R": 0.6361,
        "predicted_RBI": 0.5479,
        "predicted_SLG": 0.42,
        "predicted_SO": 0.734
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.106,
          "after": 0.0937,
          "delta": -0.0123,
          "percent_delta": -0.116,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.38,
          "after": 4.2313,
          "delta": -0.1487,
          "percent_delta": -0.0339,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2682,
          "delta": 0.0182,
          "percent_delta": 0.0728,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.485,
          "after": 0.4655,
          "delta": -0.0195,
          "percent_delta": -0.0402,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.1,
          "after": 1.1339,
          "delta": 0.0339,
          "percent_delta": 0.0308,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.15,
          "after": 0.15,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.356,
          "after": 0.3637,
          "delta": 0.0077,
          "percent_delta": 0.0216,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.667,
          "after": 0.6361,
          "delta": -0.0309,
          "percent_delta": -0.0463,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.55,
          "after": 0.5479,
          "delta": -0.0021,
          "percent_delta": -0.0038,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.417,
          "after": 0.42,
          "delta": 0.003,
          "percent_delta": 0.0072,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.742,
          "after": 0.734,
          "delta": -0.008,
          "percent_delta": -0.0108,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2682,
          "delta": 0.0182,
          "percent_delta": 0.0728,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.38,
          "after": 4.2313,
          "delta": -0.1487,
          "percent_delta": -0.0339,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 66
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0937,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.2313,
        "predicted_AVG": 0.2735,
        "predicted_BB": 0.47,
        "predicted_H": 1.1574,
        "predicted_HBP": 0.089,
        "predicted_HR": 0.1528,
        "predicted_OBP": 0.3462,
        "predicted_R": 0.661,
        "predicted_RBI": 0.5694,
        "predicted_SLG": 0.4042,
        "predicted_SO": 0.7269
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0937,
          "after": 0.0937,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.2313,
          "after": 4.2313,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2682,
          "after": 0.2735,
          "delta": 0.0053,
          "percent_delta": 0.0198,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4655,
          "after": 0.47,
          "delta": 0.0045,
          "percent_delta": 0.0097,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.1339,
          "after": 1.1574,
          "delta": 0.0235,
          "percent_delta": 0.0207,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.089,
          "after": 0.089,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.15,
          "after": 0.1528,
          "delta": 0.0028,
          "percent_delta": 0.0187,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3637,
          "after": 0.3462,
          "delta": -0.0175,
          "percent_delta": -0.0481,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.6361,
          "after": 0.661,
          "delta": 0.0249,
          "percent_delta": 0.0391,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5479,
          "after": 0.5694,
          "delta": 0.0215,
          "percent_delta": 0.0392,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.42,
          "after": 0.4042,
          "delta": -0.0158,
          "percent_delta": -0.0376,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.734,
          "after": 0.7269,
          "delta": -0.0071,
          "percent_delta": -0.0097,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2682,
          "after": 0.2735,
          "delta": 0.0053,
          "percent_delta": 0.0198,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3637,
          "after": 0.3462,
          "delta": -0.0175,
          "percent_delta": -0.0481,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.38), rates preserved: AVG=0.264 HR/AB=0.035",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0937,
          "after": 0.0,
          "delta": -0.0937,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.2313,
          "after": 4.0,
          "delta": -0.2313,
          "percent_delta": -0.0547,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.47,
          "after": 0.0,
          "delta": -0.47,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.1574,
          "after": 1.0,
          "delta": -0.1574,
          "percent_delta": -0.136,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.089,
          "after": 0.0,
          "delta": -0.089,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1528,
          "after": 0.0,
          "delta": -0.1528,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5694,
          "after": 1.0,
          "delta": 0.4306,
          "percent_delta": 0.7562,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7269,
          "after": 1.0,
          "delta": 0.2731,
          "percent_delta": 0.3757,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 2,
        "deboosted_metrics": 6,
        "better_metrics": 1,
        "worse_metrics": 7,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.5694,
          "after": 1.0,
          "delta": 0.4306,
          "percent_delta": 0.7562,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.47,
          "after": 0.0,
          "delta": -0.47,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.661,
          "after": 1.0,
          "delta": 0.339,
          "percent_delta": 0.5129,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.661,
          "after": 1.0,
          "delta": 0.339,
          "percent_delta": 0.5129,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2735,
          "after": 0.25,
          "delta": -0.0235,
          "percent_delta": -0.0859,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3462,
          "after": 0.25,
          "delta": -0.0962,
          "percent_delta": -0.2779,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4042,
          "after": 0.25,
          "delta": -0.1542,
          "percent_delta": -0.3815,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4042,
          "after": 0.25,
          "delta": -0.1542,
          "percent_delta": -0.3815,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 2.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 1,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2735,
        "predicted_BB": 2.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3462,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4042,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2735,
          "delta": 0.0235,
          "percent_delta": 0.0941,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3462,
          "delta": 0.0962,
          "percent_delta": 0.3846,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4042,
          "delta": 0.1542,
          "percent_delta": 0.6168,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4042,
          "delta": 0.1542,
          "percent_delta": 0.6168,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.106,
        "after": 0.0,
        "delta": -0.106,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.38,
        "after": 3.0,
        "delta": -1.38,
        "percent_delta": -0.3151,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.25,
        "after": 0.2735,
        "delta": 0.0235,
        "percent_delta": 0.094,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.485,
        "after": 2.0,
        "delta": 1.515,
        "percent_delta": 3.1237,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.1,
        "after": 0.0,
        "delta": -1.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.15,
        "after": 0.0,
        "delta": -0.15,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.356,
        "after": 0.3462,
        "delta": -0.0098,
        "percent_delta": -0.0275,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.667,
        "after": 0.0,
        "delta": -0.667,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.55,
        "after": 0.0,
        "delta": -0.55,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.417,
        "after": 0.4042,
        "delta": -0.0128,
        "percent_delta": -0.0307,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.742,
        "after": 0.0,
        "delta": -0.742,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 2,
      "deboosted_metrics": 9,
      "better_metrics": 3,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.485,
        "after": 2.0,
        "delta": 1.515,
        "percent_delta": 3.1237,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 4.38,
        "after": 3.0,
        "delta": -1.38,
        "percent_delta": -0.3151,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.106-
predicted_3B0.000-
predicted_AB4.380-
predicted_AVG0.250-
predicted_BB0.485-
predicted_H1.100-
predicted_HR0.150-
predicted_OBP0.356-
predicted_R0.667-
predicted_RBI0.550-
predicted_SLG0.417-
predicted_SO0.742-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.094-0.012
predicted_3B0.0000.000
predicted_AB4.231-0.149
predicted_AVG0.2680.018
predicted_BB0.466-0.019
predicted_H1.1340.034
predicted_HBP0.089-
predicted_HR0.1500.000
predicted_OBP0.3640.008
predicted_R0.636-0.031
predicted_RBI0.548-0.002
predicted_SLG0.4200.003
predicted_SO0.734-0.008
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0940.000
predicted_3B0.0000.000
predicted_AB4.2310.000
predicted_AVG0.2740.005
predicted_BB0.4700.004
predicted_H1.1570.024
predicted_HBP0.0890.000
predicted_HR0.1530.003
predicted_OBP0.346-0.018
predicted_R0.6610.025
predicted_RBI0.5690.021
predicted_SLG0.404-0.016
predicted_SO0.727-0.007
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.38), rates preserved: AVG=0.264 HR/AB=0.035

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.094
predicted_3B0.000-0.000
predicted_AB4.000-0.231
predicted_AVG0.250-0.024
predicted_BB0.000-0.470
predicted_H1.000-0.157
predicted_HR0.000-0.153
predicted_OBP0.250-0.096
predicted_R1.0000.339
predicted_RBI1.0000.431
predicted_SLG0.250-0.154
predicted_SO1.0000.273
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB2.0002.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 66
Reference playing time: 4.380
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-21.0008.0000.0000.0001.0004.0002.0002.0004.0000.38100.43480.52380.38100.04760.19050.09520.1905
last_100.2010-43.00014.0000.0000.0001.0006.0006.0004.0005.0000.32560.38300.39530.32560.02330.13950.09300.1163
season0.6066-258.00067.0007.0000.00010.00030.00044.00032.00049.0000.25970.36090.40310.25970.03880.11630.12400.1899
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0770
predicted_3B0.0010
predicted_AB4.0290
predicted_AVG0.2929
predicted_BB0.4390
predicted_H1.1800
predicted_HBP0.0890
predicted_HR0.1500
predicted_OBP0.3741
predicted_R0.5940
predicted_RBI0.5450
predicted_SLG0.4242
predicted_SO0.7230
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.10600.07700.0937model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.38004.02904.2313model_form_blend
predicted_AVG0.25000.29290.2682model_form_blend
predicted_BB0.48500.43900.4655model_form_blend
predicted_H1.10001.18001.1339model_form_blend
predicted_HBP-0.08900.0890form_only
predicted_HR0.15000.15000.1500model_form_blend
predicted_OBP0.35600.37410.3637model_form_blend
predicted_R0.66700.59400.6361model_form_blend
predicted_RBI0.55000.54500.5479model_form_blend
predicted_SLG0.41700.42420.4200model_form_blend
predicted_SO0.74200.72300.7340model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date258
Season rows before report date258
Report year2026
Profile rows used66
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB2
SO0
SF0
HBP0
season_avg0.26

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_SD@STL
game_typefull
mlbID802139
playerID802139
playerNameJJ Wetherholt
posSS
startedTrue
startingPosition2B
teamSTL
teamID26
game_date2026-06-17
sl_k_percent16.2
sl_bb_percent10.7
sl_woba0.34
sl_xwoba0.354
sl_xba0.256
sl_xslg0.441
sl_sweet_spot_percent34.4
sl_barrel_batted_rate7.5
sl_hard_hit_percent46.0
sl_exit_velocity_avg90.3
sl_launch_angle_avg14.6
sl_whiff_percent21.3
sl_swing_percent43.7
Jordan Walker (691023) · BATTER · RF · Team STL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 242
All-history rows before 20260618: 242
System season_avg: 0.2900
Data season_avg (2026 season-to-date): 0.3158
Diff (system - data): -0.0258
System opponent_avg: 0.3450
System season_avg diverges from 2026 season-to-date by -0.0258. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2290.0000.000Hitting_2B0.2440.000-0.2440.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.2804.0004.000Hitting_AB3.9384.0000.0620.000
predicted_AVG0.2370.2500.250Hitting_AVG0.3160.000-0.0660.250
predicted_BB0.3001.0000.000Hitting_BB0.3840.0000.6161.000
predicted_CS-0.0000.000BaseRunning_CS0.0620.000-0.0620.000
predicted_H1.0101.0001.000Hitting_H1.2440.000-0.2441.000
predicted_HR0.2000.0000.000Hitting_HR0.2980.000-0.2980.000
predicted_OBP0.2910.4000.250Hitting_OBP0.3780.0000.0220.400
predicted_R0.6431.0001.000Hitting_R0.7480.0000.2521.000
predicted_RBI0.6500.0001.000Hitting_RBI0.8760.000-0.8760.000
predicted_SLG0.4470.2500.250Hitting_SLG0.6040.000-0.3540.250
predicted_SO1.0861.0001.000Hitting_SO1.0990.000-0.0991.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectdeboosted
Changed Metrics8
Boosted Metrics3
Deboosted Metrics5
Better Metrics4
Worse Metrics4
Biggest Boostpredicted_BB: 0.3000 -> 1.0000 (boost 0.7000, better)
Biggest Deboostpredicted_RBI: 0.6500 -> 0.0000 (deboost -0.6500, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend20202-predicted_AB: 4.2800 -> 4.1970 (deboost -0.0830, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot00000--Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling51414predicted_RBI: 0.6873 -> 1.0000 (boost 0.3127, better)predicted_BB: 0.2593 -> 0.0000 (deboost -0.2593, worse)AB rounded to 4 (raw=4.28), rates preserved: AVG=0.241 HR/AB=0.049
5bvp_blend00000--Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.400)
6consistency_constraints11010predicted_R: 0.6036 -> 1.0000 (boost 0.3964, better)-Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context20202-predicted_SLG: 0.4483 -> 0.2500 (deboost -0.1983, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference21111predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_RBI: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final22020predicted_SLG: 0.2500 -> 0.4483 (boost 0.1983, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "691023",
  "player_name": "Jordan Walker",
  "position": "RF",
  "team": "STL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.229,
        "predicted_3B": 0.0,
        "predicted_AB": 4.28,
        "predicted_AVG": 0.237,
        "predicted_BB": 0.3,
        "predicted_H": 1.01,
        "predicted_HR": 0.2,
        "predicted_OBP": 0.291,
        "predicted_R": 0.643,
        "predicted_RBI": 0.65,
        "predicted_SLG": 0.447,
        "predicted_SO": 1.086
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2155,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.197,
        "predicted_AVG": 0.2414,
        "predicted_BB": 0.2568,
        "predicted_H": 1.01,
        "predicted_HBP": 0.02,
        "predicted_HR": 0.2076,
        "predicted_OBP": 0.2872,
        "predicted_R": 0.5808,
        "predicted_RBI": 0.6614,
        "predicted_SLG": 0.451,
        "predicted_SO": 1.0585
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.229,
          "after": 0.2155,
          "delta": -0.0135,
          "percent_delta": -0.059,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.28,
          "after": 4.197,
          "delta": -0.083,
          "percent_delta": -0.0194,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.237,
          "after": 0.2414,
          "delta": 0.0044,
          "percent_delta": 0.0186,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3,
          "after": 0.2568,
          "delta": -0.0432,
          "percent_delta": -0.144,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.01,
          "after": 1.01,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2,
          "after": 0.2076,
          "delta": 0.0076,
          "percent_delta": 0.038,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.291,
          "after": 0.2872,
          "delta": -0.0038,
          "percent_delta": -0.0131,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.643,
          "after": 0.5808,
          "delta": -0.0622,
          "percent_delta": -0.0967,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.65,
          "after": 0.6614,
          "delta": 0.0114,
          "percent_delta": 0.0175,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.447,
          "after": 0.451,
          "delta": 0.004,
          "percent_delta": 0.0089,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.086,
          "after": 1.0585,
          "delta": -0.0275,
          "percent_delta": -0.0253,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.28,
          "after": 4.197,
          "delta": -0.083,
          "percent_delta": -0.0194,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 70
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2155,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.197,
        "predicted_AVG": 0.2456,
        "predicted_BB": 0.2593,
        "predicted_H": 1.0309,
        "predicted_HBP": 0.02,
        "predicted_HR": 0.2115,
        "predicted_OBP": 0.2895,
        "predicted_R": 0.6036,
        "predicted_RBI": 0.6873,
        "predicted_SLG": 0.4483,
        "predicted_SO": 1.0482
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2155,
          "after": 0.2155,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.197,
          "after": 4.197,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2414,
          "after": 0.2456,
          "delta": 0.0042,
          "percent_delta": 0.0174,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2568,
          "after": 0.2593,
          "delta": 0.0025,
          "percent_delta": 0.0097,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.01,
          "after": 1.0309,
          "delta": 0.0209,
          "percent_delta": 0.0207,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.02,
          "after": 0.02,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2076,
          "after": 0.2115,
          "delta": 0.0039,
          "percent_delta": 0.0188,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2872,
          "after": 0.2895,
          "delta": 0.0023,
          "percent_delta": 0.008,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5808,
          "after": 0.6036,
          "delta": 0.0228,
          "percent_delta": 0.0393,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6614,
          "after": 0.6873,
          "delta": 0.0259,
          "percent_delta": 0.0392,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.451,
          "after": 0.4483,
          "delta": -0.0027,
          "percent_delta": -0.006,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0585,
          "after": 1.0482,
          "delta": -0.0103,
          "percent_delta": -0.0097,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.28), rates preserved: AVG=0.241 HR/AB=0.049",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2155,
          "after": 0.0,
          "delta": -0.2155,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.197,
          "after": 4.0,
          "delta": -0.197,
          "percent_delta": -0.0469,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2593,
          "after": 0.0,
          "delta": -0.2593,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0309,
          "after": 1.0,
          "delta": -0.0309,
          "percent_delta": -0.03,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.02,
          "after": 0.0,
          "delta": -0.02,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2115,
          "after": 0.0,
          "delta": -0.2115,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6873,
          "after": 1.0,
          "delta": 0.3127,
          "percent_delta": 0.455,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0482,
          "after": 1.0,
          "delta": -0.0482,
          "percent_delta": -0.046,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 1,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.6873,
          "after": 1.0,
          "delta": 0.3127,
          "percent_delta": 0.455,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.2593,
          "after": 0.0,
          "delta": -0.2593,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.400)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9429,
        "bvp": 0.0571
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.6036,
          "after": 1.0,
          "delta": 0.3964,
          "percent_delta": 0.6567,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.6036,
          "after": 1.0,
          "delta": 0.3964,
          "percent_delta": 0.6567,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2456,
          "after": 0.25,
          "delta": 0.0044,
          "percent_delta": 0.0179,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2895,
          "after": 0.25,
          "delta": -0.0395,
          "percent_delta": -0.1364,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4483,
          "after": 0.25,
          "delta": -0.1983,
          "percent_delta": -0.4423,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4483,
          "after": 0.25,
          "delta": -0.1983,
          "percent_delta": -0.4423,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2456,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2895,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_RF": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4483,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2456,
          "delta": -0.0044,
          "percent_delta": -0.0175,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2895,
          "delta": 0.0395,
          "percent_delta": 0.1581,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4483,
          "delta": 0.1983,
          "percent_delta": 0.7933,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4483,
          "delta": 0.1983,
          "percent_delta": 0.7933,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.229,
        "after": 0.0,
        "delta": -0.229,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.28,
        "after": 4.0,
        "delta": -0.28,
        "percent_delta": -0.0654,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.237,
        "after": 0.2456,
        "delta": 0.0086,
        "percent_delta": 0.0363,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.3,
        "after": 1.0,
        "delta": 0.7,
        "percent_delta": 2.3333,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.01,
        "after": 1.0,
        "delta": -0.01,
        "percent_delta": -0.0099,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.2,
        "after": 0.0,
        "delta": -0.2,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.291,
        "after": 0.2895,
        "delta": -0.0015,
        "percent_delta": -0.0052,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.643,
        "after": 1.0,
        "delta": 0.357,
        "percent_delta": 0.5552,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.65,
        "after": 0.0,
        "delta": -0.65,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.447,
        "after": 0.4483,
        "delta": 0.0013,
        "percent_delta": 0.0029,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.086,
        "after": 1.0,
        "delta": -0.086,
        "percent_delta": -0.0792,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 8,
      "boosted_metrics": 3,
      "deboosted_metrics": 5,
      "better_metrics": 4,
      "worse_metrics": 4,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.3,
        "after": 1.0,
        "delta": 0.7,
        "percent_delta": 2.3333,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.65,
        "after": 0.0,
        "delta": -0.65,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "deboosted"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.229-
predicted_3B0.000-
predicted_AB4.280-
predicted_AVG0.237-
predicted_BB0.300-
predicted_H1.010-
predicted_HR0.200-
predicted_OBP0.291-
predicted_R0.643-
predicted_RBI0.650-
predicted_SLG0.447-
predicted_SO1.086-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.215-0.014
predicted_3B0.0000.000
predicted_AB4.197-0.083
predicted_AVG0.2410.004
predicted_BB0.257-0.043
predicted_H1.0100.000
predicted_HBP0.020-
predicted_HR0.2080.008
predicted_OBP0.287-0.004
predicted_R0.581-0.062
predicted_RBI0.6610.011
predicted_SLG0.4510.004
predicted_SO1.058-0.028
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2150.000
predicted_3B0.0000.000
predicted_AB4.1970.000
predicted_AVG0.2460.004
predicted_BB0.2590.003
predicted_H1.0310.021
predicted_HBP0.0200.000
predicted_HR0.2110.004
predicted_OBP0.2890.002
predicted_R0.6040.023
predicted_RBI0.6870.026
predicted_SLG0.448-0.003
predicted_SO1.048-0.010
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.28), rates preserved: AVG=0.241 HR/AB=0.049

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.400)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI1.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.215
predicted_3B0.000-0.000
predicted_AB4.000-0.197
predicted_AVG0.2500.004
predicted_BB0.000-0.259
predicted_H1.000-0.031
predicted_HR0.000-0.211
predicted_OBP0.250-0.039
predicted_R1.0000.396
predicted_RBI1.0000.313
predicted_SLG0.250-0.198
predicted_SO1.000-0.048
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R1.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 70
Reference playing time: 4.280
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-21.0003.0000.0000.0001.0001.0001.0000.0005.0000.14290.14290.28570.14290.04760.04760.00000.2381
last_100.2010-45.00010.0003.0000.0002.00010.0003.0000.0009.0000.22220.22220.42220.22220.04440.22220.00000.2000
season0.6070-276.00080.00016.0000.00017.00053.00045.00021.00076.0000.28990.34330.53260.28990.06160.19200.07610.2754
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1970
predicted_3B0.0010
predicted_AB4.0840
predicted_AVG0.2473
predicted_BB0.1980
predicted_H1.0100
predicted_HBP0.0200
predicted_HR0.2180
predicted_OBP0.2821
predicted_R0.4960
predicted_RBI0.6770
predicted_SLG0.4565
predicted_SO1.0210
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.22900.19700.2155model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.28004.08404.1970model_form_blend
predicted_AVG0.23700.24730.2414model_form_blend
predicted_BB0.30000.19800.2568model_form_blend
predicted_H1.01001.01001.0100model_form_blend
predicted_HBP-0.02000.0200form_only
predicted_HR0.20000.21800.2076model_form_blend
predicted_OBP0.29100.28210.2872model_form_blend
predicted_R0.64300.49600.5808model_form_blend
predicted_RBI0.65000.67700.6614model_form_blend
predicted_SLG0.44700.45650.4510model_form_blend
predicted_SO1.08601.02101.0585model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date242
Season rows before report date242
Report year2026
Profile rows used70
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB4
H1
2B0
3B0
HR0
R1
RBI0
BB1
SO1
SF0
HBP0
season_avg0.29

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists1
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedRF
gameID20260617_SD@STL
game_typefull
mlbID691023
playerID691023
playerNameJordan Walker
posRF
startedTrue
startingPositionRF
teamSTL
teamID26
game_date2026-06-17
sl_k_percent25.2
sl_bb_percent6.9
sl_woba0.378
sl_xwoba0.37
sl_xba0.284
sl_xslg0.521
sl_sweet_spot_percent35.1
sl_barrel_batted_rate14.1
sl_hard_hit_percent52.7
sl_exit_velocity_avg94.7
sl_launch_angle_avg13.1
sl_whiff_percent30.8
sl_swing_percent52.3
Masyn Winn (691026) · BATTER · SS · Team STL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 218
All-history rows before 20260618: 218
System season_avg: 0.2340
Data season_avg (2026 season-to-date): 0.2304
Diff (system - data): 0.0036
System opponent_avg: 0.0470

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1430.0000.000Hitting_2B0.1740.000-0.1740.000
predicted_3B0.0320.0000.000Hitting_3B0.0370.000-0.0370.000
predicted_AB3.7504.0004.000Hitting_AB3.8033.0000.1971.000
predicted_AVG0.2410.2500.250Hitting_AVG0.2300.3330.020-0.083
predicted_BB0.3650.0000.000Hitting_BB0.3441.000-0.344-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0231.000-0.023-1.000
predicted_H0.9001.0001.000Hitting_H0.8761.0000.1240.000
predicted_HR0.0600.0000.000Hitting_HR0.0280.000-0.0280.000
predicted_OBP0.3210.4000.250Hitting_OBP0.3020.5000.098-0.100
predicted_R0.3971.0000.000Hitting_R0.4130.0000.5871.000
predicted_RBI0.4103.0000.000Hitting_RBI0.4400.0002.5603.000
predicted_SLG0.3390.2500.250Hitting_SLG0.3170.333-0.067-0.083
predicted_SO0.8410.0001.000Hitting_SO0.8390.000-0.8390.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics9
Boosted Metrics5
Deboosted Metrics4
Better Metrics6
Worse Metrics3
Biggest Boostpredicted_RBI: 0.4100 -> 3.0000 (boost 2.5900, better)
Biggest Deboostpredicted_SO: 0.8410 -> 0.0000 (deboost -0.8410, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend30312-predicted_AB: 3.7500 -> 3.6672 (deboost -0.0828, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot11010predicted_SLG: 0.3279 -> 0.3368 (boost 0.0089, better)-Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling63324predicted_AB: 3.6672 -> 4.0000 (boost 0.3328, better)predicted_RBI: 0.4112 -> 0.0000 (deboost -0.4112, worse)AB rounded to 4 (raw=3.75), rates preserved: AVG=0.243 HR/AB=0.013
5bvp_blend00000--Sample-size BvP blend (BvP AB=8.0, weight=0.084, BvP AVG=0.000)
6consistency_constraints10101-predicted_R: 0.4270 -> 0.0000 (deboost -0.4270, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context20202-predicted_SLG: 0.3368 -> 0.2500 (deboost -0.0868, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference43140predicted_RBI: 0.0000 -> 3.0000 (boost 3.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
9current_json_final22020predicted_SLG: 0.2500 -> 0.3368 (boost 0.0868, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "691026",
  "player_name": "Masyn Winn",
  "position": "SS",
  "team": "STL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.143,
        "predicted_3B": 0.032,
        "predicted_AB": 3.75,
        "predicted_AVG": 0.241,
        "predicted_BB": 0.365,
        "predicted_H": 0.9,
        "predicted_HR": 0.06,
        "predicted_OBP": 0.321,
        "predicted_R": 0.397,
        "predicted_RBI": 0.41,
        "predicted_SLG": 0.339,
        "predicted_SO": 0.841
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1287,
        "predicted_3B": 0.0261,
        "predicted_AB": 3.6672,
        "predicted_AVG": 0.2439,
        "predicted_BB": 0.3894,
        "predicted_H": 0.892,
        "predicted_HBP": 0.044,
        "predicted_HR": 0.047,
        "predicted_OBP": 0.323,
        "predicted_R": 0.4109,
        "predicted_RBI": 0.3957,
        "predicted_SLG": 0.3279,
        "predicted_SO": 0.7779
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.143,
          "after": 0.1287,
          "delta": -0.0143,
          "percent_delta": -0.1,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.032,
          "after": 0.0261,
          "delta": -0.0059,
          "percent_delta": -0.1844,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.75,
          "after": 3.6672,
          "delta": -0.0828,
          "percent_delta": -0.0221,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.241,
          "after": 0.2439,
          "delta": 0.0029,
          "percent_delta": 0.012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.365,
          "after": 0.3894,
          "delta": 0.0244,
          "percent_delta": 0.0668,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9,
          "after": 0.892,
          "delta": -0.008,
          "percent_delta": -0.0089,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.06,
          "after": 0.047,
          "delta": -0.013,
          "percent_delta": -0.2167,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.321,
          "after": 0.323,
          "delta": 0.002,
          "percent_delta": 0.0062,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.397,
          "after": 0.4109,
          "delta": 0.0139,
          "percent_delta": 0.035,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.41,
          "after": 0.3957,
          "delta": -0.0143,
          "percent_delta": -0.0349,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.339,
          "after": 0.3279,
          "delta": -0.0111,
          "percent_delta": -0.0327,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.841,
          "after": 0.7779,
          "delta": -0.0631,
          "percent_delta": -0.075,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.75,
          "after": 3.6672,
          "delta": -0.0828,
          "percent_delta": -0.0221,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 63
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1287,
        "predicted_3B": 0.0261,
        "predicted_AB": 3.6672,
        "predicted_AVG": 0.2483,
        "predicted_BB": 0.3932,
        "predicted_H": 0.9105,
        "predicted_HBP": 0.044,
        "predicted_HR": 0.0479,
        "predicted_OBP": 0.3211,
        "predicted_R": 0.427,
        "predicted_RBI": 0.4112,
        "predicted_SLG": 0.3368,
        "predicted_SO": 0.7704
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1287,
          "after": 0.1287,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0261,
          "after": 0.0261,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6672,
          "after": 3.6672,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2439,
          "after": 0.2483,
          "delta": 0.0044,
          "percent_delta": 0.018,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3894,
          "after": 0.3932,
          "delta": 0.0038,
          "percent_delta": 0.0098,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.892,
          "after": 0.9105,
          "delta": 0.0185,
          "percent_delta": 0.0207,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.044,
          "after": 0.044,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.047,
          "after": 0.0479,
          "delta": 0.0009,
          "percent_delta": 0.0191,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.323,
          "after": 0.3211,
          "delta": -0.0019,
          "percent_delta": -0.0059,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4109,
          "after": 0.427,
          "delta": 0.0161,
          "percent_delta": 0.0392,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3957,
          "after": 0.4112,
          "delta": 0.0155,
          "percent_delta": 0.0392,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3279,
          "after": 0.3368,
          "delta": 0.0089,
          "percent_delta": 0.0271,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7779,
          "after": 0.7704,
          "delta": -0.0075,
          "percent_delta": -0.0096,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.3279,
          "after": 0.3368,
          "delta": 0.0089,
          "percent_delta": 0.0271,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.75), rates preserved: AVG=0.243 HR/AB=0.013",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1287,
          "after": 0.0,
          "delta": -0.1287,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0261,
          "after": 0.0,
          "delta": -0.0261,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6672,
          "after": 4.0,
          "delta": 0.3328,
          "percent_delta": 0.0908,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3932,
          "after": 0.0,
          "delta": -0.3932,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9105,
          "after": 1.0,
          "delta": 0.0895,
          "percent_delta": 0.0983,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.044,
          "after": 0.0,
          "delta": -0.044,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0479,
          "after": 0.0,
          "delta": -0.0479,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4112,
          "after": 0.0,
          "delta": -0.4112,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7704,
          "after": 1.0,
          "delta": 0.2296,
          "percent_delta": 0.298,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 3,
        "deboosted_metrics": 3,
        "better_metrics": 2,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.6672,
          "after": 4.0,
          "delta": 0.3328,
          "percent_delta": 0.0908,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4112,
          "after": 0.0,
          "delta": -0.4112,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=8.0, weight=0.084, BvP AVG=0.000)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9158,
        "bvp": 0.0842
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.427,
          "after": 0.0,
          "delta": -0.427,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.427,
          "after": 0.0,
          "delta": -0.427,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2483,
          "after": 0.25,
          "delta": 0.0017,
          "percent_delta": 0.0068,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3211,
          "after": 0.25,
          "delta": -0.0711,
          "percent_delta": -0.2214,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3368,
          "after": 0.25,
          "delta": -0.0868,
          "percent_delta": -0.2577,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3368,
          "after": 0.25,
          "delta": -0.0868,
          "percent_delta": -0.2577,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 1.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 3.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 3.0,
          "delta": 3.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 4,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 3.0,
          "delta": 3.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2483,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3211,
        "predicted_R": 1.0,
        "predicted_RBI": 3.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3368,
        "predicted_SO": 0.0,
        "predicted_SS": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2483,
          "delta": -0.0017,
          "percent_delta": -0.0069,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3211,
          "delta": 0.0711,
          "percent_delta": 0.2843,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3368,
          "delta": 0.0868,
          "percent_delta": 0.3471,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3368,
          "delta": 0.0868,
          "percent_delta": 0.3471,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.143,
        "after": 0.0,
        "delta": -0.143,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.032,
        "after": 0.0,
        "delta": -0.032,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.75,
        "after": 4.0,
        "delta": 0.25,
        "percent_delta": 0.0667,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.241,
        "after": 0.2483,
        "delta": 0.0073,
        "percent_delta": 0.0303,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.365,
        "after": 0.0,
        "delta": -0.365,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.9,
        "after": 1.0,
        "delta": 0.1,
        "percent_delta": 0.1111,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.06,
        "after": 0.0,
        "delta": -0.06,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.321,
        "after": 0.3211,
        "delta": 0.0001,
        "percent_delta": 0.0003,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.397,
        "after": 1.0,
        "delta": 0.603,
        "percent_delta": 1.5189,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.41,
        "after": 3.0,
        "delta": 2.59,
        "percent_delta": 6.3171,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.339,
        "after": 0.3368,
        "delta": -0.0022,
        "percent_delta": -0.0065,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.841,
        "after": 0.0,
        "delta": -0.841,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 5,
      "deboosted_metrics": 4,
      "better_metrics": 6,
      "worse_metrics": 3,
      "biggest_boost": {
        "metric": "predicted_RBI",
        "before": 0.41,
        "after": 3.0,
        "delta": 2.59,
        "percent_delta": 6.3171,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.841,
        "after": 0.0,
        "delta": -0.841,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.143-
predicted_3B0.032-
predicted_AB3.750-
predicted_AVG0.241-
predicted_BB0.365-
predicted_H0.900-
predicted_HR0.060-
predicted_OBP0.321-
predicted_R0.397-
predicted_RBI0.410-
predicted_SLG0.339-
predicted_SO0.841-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.129-0.014
predicted_3B0.026-0.006
predicted_AB3.667-0.083
predicted_AVG0.2440.003
predicted_BB0.3890.024
predicted_H0.892-0.008
predicted_HBP0.044-
predicted_HR0.047-0.013
predicted_OBP0.3230.002
predicted_R0.4110.014
predicted_RBI0.396-0.014
predicted_SLG0.328-0.011
predicted_SO0.778-0.063
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1290.000
predicted_3B0.0260.000
predicted_AB3.6670.000
predicted_AVG0.2480.004
predicted_BB0.3930.004
predicted_H0.9100.018
predicted_HBP0.0440.000
predicted_HR0.0480.001
predicted_OBP0.321-0.002
predicted_R0.4270.016
predicted_RBI0.4110.016
predicted_SLG0.3370.009
predicted_SO0.770-0.008
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.75), rates preserved: AVG=0.243 HR/AB=0.013

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=8.0, weight=0.084, BvP AVG=0.000)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.129
predicted_3B0.000-0.026
predicted_AB4.0000.333
predicted_AVG0.2500.002
predicted_BB0.000-0.393
predicted_H1.0000.090
predicted_HR0.000-0.048
predicted_OBP0.250-0.071
predicted_R0.000-0.427
predicted_RBI0.000-0.411
predicted_SLG0.250-0.087
predicted_SO1.0000.230
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP1.0001.000
HR0.0000.000
PA5.000-
R1.0001.000
RBI3.0003.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 63
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-14.0004.0000.0000.0000.0001.0002.0003.0002.0000.28570.38890.28570.28570.00000.07140.21430.1429
last_100.2010-36.0009.0001.0000.0000.0004.0005.0004.0005.0000.25000.31710.27780.25000.00000.11110.11110.1389
season0.6063-235.00055.0009.0002.0002.00026.00025.00023.00053.0000.23400.30970.31490.23400.00850.11060.09790.2255
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1090
predicted_3B0.0180
predicted_AB3.5530
predicted_AVG0.2478
predicted_BB0.4230
predicted_H0.8810
predicted_HBP0.0440
predicted_HR0.0290
predicted_OBP0.3257
predicted_R0.4300
predicted_RBI0.3760
predicted_SLG0.3125
predicted_SO0.6910
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.14300.10900.1287model_form_blend
predicted_3B0.03200.01800.0261model_form_blend
predicted_AB3.75003.55303.6672model_form_blend
predicted_AVG0.24100.24780.2439model_form_blend
predicted_BB0.36500.42300.3894model_form_blend
predicted_H0.90000.88100.8920model_form_blend
predicted_HBP-0.04400.0440form_only
predicted_HR0.06000.02900.0470model_form_blend
predicted_OBP0.32100.32570.3230model_form_blend
predicted_R0.39700.43000.4109model_form_blend
predicted_RBI0.41000.37600.3957model_form_blend
predicted_SLG0.33900.31250.3279model_form_blend
predicted_SO0.84100.69100.7779model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date218
Season rows before report date218
Report year2026
Profile rows used63
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB4
H1
2B0
3B0
HR0
R1
RBI3
BB0
SO0
SF0
HBP1
season_avg0.234

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS1
BaseRunning_PO1
BaseRunning_SB0
Fielding_E1
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB1
Hitting_GIDP1
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedSS
gameID20260617_SD@STL
game_typefull
mlbID691026
playerID691026
playerNameMasyn Winn
posSS
startedTrue
startingPositionSS
teamSTL
teamID26
game_date2026-06-17
sl_k_percent20.0
sl_bb_percent9.1
sl_woba0.287
sl_xwoba0.308
sl_xba0.259
sl_xslg0.33
sl_sweet_spot_percent33.3
sl_barrel_batted_rate3.2
sl_hard_hit_percent33.3
sl_exit_velocity_avg87.2
sl_launch_angle_avg12.5
sl_whiff_percent22.7
sl_swing_percent41.6
Blaze Jordan (691458) · BATTER · 3B · Team STL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 6
All-history rows before 20260618: 6
System season_avg: 0.2860
Data season_avg (2026 season-to-date): 0.2857
Diff (system - data): 0.0003
System opponent_avg: 0.2860

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1670.0000.000Hitting_2B0.1670.000-0.1670.000
predicted_3B0.1670.0000.000Hitting_3B0.1670.000-0.1670.000
predicted_AB3.5005.0004.000Hitting_AB3.5002.0001.5003.000
predicted_AVG0.2430.0000.250Hitting_AVG0.2860.000-0.2860.000
predicted_BB0.1670.0000.000Hitting_BB0.1671.000-0.167-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.8400.0001.000Hitting_H1.0000.000-1.0000.000
predicted_HR0.1400.0000.000Hitting_HR0.1670.000-0.1670.000
predicted_OBP0.3040.0000.250Hitting_OBP0.3180.333-0.318-0.333
predicted_R0.5000.0001.000Hitting_R0.5000.000-0.5000.000
predicted_RBI0.5500.0001.000Hitting_RBI0.8330.000-0.8330.000
predicted_SLG0.4520.0000.250Hitting_SLG0.5710.000-0.5710.000
predicted_SO0.3331.0000.000Hitting_SO0.3330.0000.6671.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics2
Worse Metrics9
Biggest Boostpredicted_AB: 3.5000 -> 5.0000 (boost 1.5000, better)
Biggest Deboostpredicted_H: 0.8400 -> 0.0000 (deboost -0.8400, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend11010predicted_SLG: 0.4520 -> 0.4610 (boost 0.0090, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot21111predicted_SLG: 0.4610 -> 0.5049 (boost 0.0439, better)predicted_OBP: 0.3032 -> 0.2860 (deboost -0.0172, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling83544predicted_AB: 3.5492 -> 4.0000 (boost 0.4508, better)predicted_SO: 0.3740 -> 0.0000 (deboost -0.3740, better)AB rounded to 4 (raw=3.55), rates preserved: AVG=0.247 HR/AB=0.042
5consistency_constraints11010predicted_R: 0.5313 -> 1.0000 (boost 0.4687, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context20202-predicted_SLG: 0.5049 -> 0.2500 (deboost -0.2549, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference52314predicted_AB: 4.0000 -> 5.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final22020predicted_SLG: 0.2500 -> 0.5049 (boost 0.2549, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "691458",
  "player_name": "Blaze Jordan",
  "position": "3B",
  "team": "STL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.167,
        "predicted_3B": 0.167,
        "predicted_AB": 3.5,
        "predicted_AVG": 0.243,
        "predicted_BB": 0.167,
        "predicted_H": 0.84,
        "predicted_HR": 0.14,
        "predicted_OBP": 0.304,
        "predicted_R": 0.5,
        "predicted_RBI": 0.55,
        "predicted_SLG": 0.452,
        "predicted_SO": 0.333
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.174,
        "predicted_3B": 0.1473,
        "predicted_AB": 3.5492,
        "predicted_AVG": 0.2443,
        "predicted_BB": 0.1906,
        "predicted_H": 0.8597,
        "predicted_HBP": 0.019,
        "predicted_HR": 0.1459,
        "predicted_OBP": 0.3032,
        "predicted_R": 0.5113,
        "predicted_RBI": 0.5767,
        "predicted_SLG": 0.461,
        "predicted_SO": 0.3777
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.167,
          "after": 0.174,
          "delta": 0.007,
          "percent_delta": 0.0419,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.167,
          "after": 0.1473,
          "delta": -0.0197,
          "percent_delta": -0.118,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.5,
          "after": 3.5492,
          "delta": 0.0492,
          "percent_delta": 0.0141,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.243,
          "after": 0.2443,
          "delta": 0.0013,
          "percent_delta": 0.0053,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.167,
          "after": 0.1906,
          "delta": 0.0236,
          "percent_delta": 0.1413,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.84,
          "after": 0.8597,
          "delta": 0.0197,
          "percent_delta": 0.0235,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.14,
          "after": 0.1459,
          "delta": 0.0059,
          "percent_delta": 0.0421,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.304,
          "after": 0.3032,
          "delta": -0.0008,
          "percent_delta": -0.0026,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5,
          "after": 0.5113,
          "delta": 0.0113,
          "percent_delta": 0.0226,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.55,
          "after": 0.5767,
          "delta": 0.0267,
          "percent_delta": 0.0485,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.452,
          "after": 0.461,
          "delta": 0.009,
          "percent_delta": 0.0199,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.333,
          "after": 0.3777,
          "delta": 0.0447,
          "percent_delta": 0.1342,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.452,
          "after": 0.461,
          "delta": 0.009,
          "percent_delta": 0.0199,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 6,
        "season": 6
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.174,
        "predicted_3B": 0.1473,
        "predicted_AB": 3.5492,
        "predicted_AVG": 0.2472,
        "predicted_BB": 0.1924,
        "predicted_H": 0.8775,
        "predicted_HBP": 0.019,
        "predicted_HR": 0.1486,
        "predicted_OBP": 0.286,
        "predicted_R": 0.5313,
        "predicted_RBI": 0.5993,
        "predicted_SLG": 0.5049,
        "predicted_SO": 0.374
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.174,
          "after": 0.174,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.1473,
          "after": 0.1473,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.5492,
          "after": 3.5492,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2443,
          "after": 0.2472,
          "delta": 0.0029,
          "percent_delta": 0.0119,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.1906,
          "after": 0.1924,
          "delta": 0.0018,
          "percent_delta": 0.0094,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8597,
          "after": 0.8775,
          "delta": 0.0178,
          "percent_delta": 0.0207,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.019,
          "after": 0.019,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1459,
          "after": 0.1486,
          "delta": 0.0027,
          "percent_delta": 0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3032,
          "after": 0.286,
          "delta": -0.0172,
          "percent_delta": -0.0567,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5113,
          "after": 0.5313,
          "delta": 0.02,
          "percent_delta": 0.0391,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5767,
          "after": 0.5993,
          "delta": 0.0226,
          "percent_delta": 0.0392,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.461,
          "after": 0.5049,
          "delta": 0.0439,
          "percent_delta": 0.0952,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.3777,
          "after": 0.374,
          "delta": -0.0037,
          "percent_delta": -0.0098,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.461,
          "after": 0.5049,
          "delta": 0.0439,
          "percent_delta": 0.0952,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3032,
          "after": 0.286,
          "delta": -0.0172,
          "percent_delta": -0.0567,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.55), rates preserved: AVG=0.247 HR/AB=0.042",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.174,
          "after": 0.0,
          "delta": -0.174,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.1473,
          "after": 0.0,
          "delta": -0.1473,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AB",
          "before": 3.5492,
          "after": 4.0,
          "delta": 0.4508,
          "percent_delta": 0.127,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1924,
          "after": 0.0,
          "delta": -0.1924,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8775,
          "after": 1.0,
          "delta": 0.1225,
          "percent_delta": 0.1396,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.019,
          "after": 0.0,
          "delta": -0.019,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1486,
          "after": 0.0,
          "delta": -0.1486,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5993,
          "after": 1.0,
          "delta": 0.4007,
          "percent_delta": 0.6686,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.374,
          "after": 0.0,
          "delta": -0.374,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 3,
        "deboosted_metrics": 5,
        "better_metrics": 4,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.5492,
          "after": 4.0,
          "delta": 0.4508,
          "percent_delta": 0.127,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 0.374,
          "after": 0.0,
          "delta": -0.374,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5313,
          "after": 1.0,
          "delta": 0.4687,
          "percent_delta": 0.8822,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5313,
          "after": 1.0,
          "delta": 0.4687,
          "percent_delta": 0.8822,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2472,
          "after": 0.25,
          "delta": 0.0028,
          "percent_delta": 0.0113,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.286,
          "after": 0.25,
          "delta": -0.036,
          "percent_delta": -0.1259,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5049,
          "after": 0.25,
          "delta": -0.2549,
          "percent_delta": -0.5049,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.5049,
          "after": 0.25,
          "delta": -0.2549,
          "percent_delta": -0.5049,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 5.0,
          "delta": 1.0,
          "percent_delta": 0.25,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 2,
        "deboosted_metrics": 3,
        "better_metrics": 1,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 5.0,
          "delta": 1.0,
          "percent_delta": 0.25,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.2472,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.286,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.5049,
        "predicted_SO": 1.0,
        "predicted_TB": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2472,
          "delta": -0.0028,
          "percent_delta": -0.011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.286,
          "delta": 0.036,
          "percent_delta": 0.1438,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.5049,
          "delta": 0.2549,
          "percent_delta": 1.0195,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.5049,
          "delta": 0.2549,
          "percent_delta": 1.0195,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.167,
        "after": 0.0,
        "delta": -0.167,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.167,
        "after": 0.0,
        "delta": -0.167,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AB",
        "before": 3.5,
        "after": 5.0,
        "delta": 1.5,
        "percent_delta": 0.4286,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.243,
        "after": 0.2472,
        "delta": 0.0042,
        "percent_delta": 0.0173,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.167,
        "after": 0.0,
        "delta": -0.167,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.84,
        "after": 0.0,
        "delta": -0.84,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.14,
        "after": 0.0,
        "delta": -0.14,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.304,
        "after": 0.286,
        "delta": -0.018,
        "percent_delta": -0.0592,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.5,
        "after": 0.0,
        "delta": -0.5,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.55,
        "after": 0.0,
        "delta": -0.55,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.452,
        "after": 0.5049,
        "delta": 0.0529,
        "percent_delta": 0.117,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.333,
        "after": 1.0,
        "delta": 0.667,
        "percent_delta": 2.003,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 2,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.5,
        "after": 5.0,
        "delta": 1.5,
        "percent_delta": 0.4286,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.84,
        "after": 0.0,
        "delta": -0.84,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.167-
predicted_3B0.167-
predicted_AB3.500-
predicted_AVG0.243-
predicted_BB0.167-
predicted_H0.840-
predicted_HR0.140-
predicted_OBP0.304-
predicted_R0.500-
predicted_RBI0.550-
predicted_SLG0.452-
predicted_SO0.333-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1740.007
predicted_3B0.147-0.020
predicted_AB3.5490.049
predicted_AVG0.2440.001
predicted_BB0.1910.024
predicted_H0.8600.020
predicted_HBP0.019-
predicted_HR0.1460.006
predicted_OBP0.303-0.001
predicted_R0.5110.011
predicted_RBI0.5770.027
predicted_SLG0.4610.009
predicted_SO0.3780.045
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1740.000
predicted_3B0.1470.000
predicted_AB3.5490.000
predicted_AVG0.2470.003
predicted_BB0.1920.002
predicted_H0.8770.018
predicted_HBP0.0190.000
predicted_HR0.1490.003
predicted_OBP0.286-0.017
predicted_R0.5310.020
predicted_RBI0.5990.023
predicted_SLG0.5050.044
predicted_SO0.374-0.004
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.55), rates preserved: AVG=0.247 HR/AB=0.042

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO0.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO0.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.174
predicted_3B0.000-0.147
predicted_AB4.0000.451
predicted_AVG0.2500.003
predicted_BB0.000-0.192
predicted_H1.0000.123
predicted_HR0.000-0.149
predicted_OBP0.250-0.036
predicted_R1.0000.469
predicted_RBI1.0000.401
predicted_SLG0.250-0.255
predicted_SO0.000-0.374
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB5.0001.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO1.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 6
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0004.0001.0001.0001.0004.0003.0001.0000.0000.23530.27780.58820.23530.05880.23530.05880.0000
last_100.206-21.0006.0001.0001.0001.0005.0003.0001.0002.0000.28570.31820.57140.28570.04760.23810.04760.0952
season0.606-21.0006.0001.0001.0001.0005.0003.0001.0002.0000.28570.31820.57140.28570.04760.23810.04760.0952
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1920
predicted_3B0.0970
predicted_AB3.6750
predicted_AVG0.2476
predicted_BB0.2510
predicted_H0.9100
predicted_HBP0.0190
predicted_HR0.1610
predicted_OBP0.3012
predicted_R0.5400
predicted_RBI0.6450
predicted_SLG0.4841
predicted_SO0.4920
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.16700.19200.1740model_form_blend
predicted_3B0.16700.09700.1473model_form_blend
predicted_AB3.50003.67503.5492model_form_blend
predicted_AVG0.24300.24760.2443model_form_blend
predicted_BB0.16700.25100.1906model_form_blend
predicted_H0.84000.91000.8597model_form_blend
predicted_HBP-0.01900.0190form_only
predicted_HR0.14000.16100.1459model_form_blend
predicted_OBP0.30400.30120.3032model_form_blend
predicted_R0.50000.54000.5113model_form_blend
predicted_RBI0.55000.64500.5767model_form_blend
predicted_SLG0.45200.48410.4610model_form_blend
predicted_SO0.33300.49200.3777model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date6
Season rows before report date6
Report year2026
Profile rows used6
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB5
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.286

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB2
Hitting_AVG0.0
Hitting_BB1
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder8
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260617_SD@STL
game_typefull
mlbID691458
playerID691458
playerNameBlaze Jordan
pos1B
startedTrue
startingPosition3B
teamSTL
teamID26
game_date2026-06-17
sl_k_percent9.1
sl_bb_percent4.5
sl_woba0.377
sl_xwoba0.284
sl_xba0.227
sl_xslg0.391
sl_sweet_spot_percent10.5
sl_barrel_batted_rate5.3
sl_hard_hit_percent57.9
sl_exit_velocity_avg93.6
sl_launch_angle_avg0.8
sl_whiff_percent17.5
sl_swing_percent51.9
Alec Burleson (676475) · BATTER · 1B · Team STL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 246
All-history rows before 20260618: 246
System season_avg: 0.2820
Data season_avg (2026 season-to-date): 0.2801
Diff (system - data): 0.0019
System opponent_avg: 0.1690

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2571.0000.000Hitting_2B0.2890.0000.7111.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.1605.0004.000Hitting_AB4.0494.0000.9511.000
predicted_AVG0.2450.4000.250Hitting_AVG0.2800.2500.1200.150
predicted_BB0.3570.0000.000Hitting_BB0.3900.000-0.3900.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H1.0202.0001.000Hitting_H1.1341.0000.8661.000
predicted_HR0.2000.0000.000Hitting_HR0.1500.000-0.1500.000
predicted_OBP0.3090.4000.250Hitting_OBP0.3440.2500.0560.150
predicted_R0.5571.0001.000Hitting_R0.5370.0000.4631.000
predicted_RBI0.6800.0001.000Hitting_RBI0.7071.000-0.707-1.000
predicted_SLG0.4750.6000.250Hitting_SLG0.4630.2500.1370.350
predicted_SO0.6861.0001.000Hitting_SO0.7361.0000.2640.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics9
Boosted Metrics6
Deboosted Metrics3
Better Metrics5
Worse Metrics4
Biggest Boostpredicted_H: 1.0200 -> 2.0000 (boost 0.9800, better)
Biggest Deboostpredicted_RBI: 0.6800 -> 0.0000 (deboost -0.6800, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend22020predicted_SLG: 0.4750 -> 0.4845 (boost 0.0095, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot21111predicted_AVG: 0.2527 -> 0.2580 (boost 0.0053, better)predicted_SLG: 0.4845 -> 0.4788 (deboost -0.0057, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_SO: 0.6814 -> 1.0000 (boost 0.3186, worse)predicted_BB: 0.3211 -> 0.0000 (deboost -0.3211, worse)AB rounded to 4 (raw=4.16), rates preserved: AVG=0.257 HR/AB=0.053
5consistency_constraints11010predicted_R: 0.5837 -> 1.0000 (boost 0.4163, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.4788 -> 0.2500 (deboost -0.2288, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference43131predicted_2B: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_RBI: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2500 -> 0.4788 (boost 0.2288, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "676475",
  "player_name": "Alec Burleson",
  "position": "1B",
  "team": "STL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.257,
        "predicted_3B": 0.0,
        "predicted_AB": 4.16,
        "predicted_AVG": 0.245,
        "predicted_BB": 0.357,
        "predicted_H": 1.02,
        "predicted_HR": 0.2,
        "predicted_OBP": 0.309,
        "predicted_R": 0.557,
        "predicted_RBI": 0.68,
        "predicted_SLG": 0.475,
        "predicted_SO": 0.686
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2536,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.1388,
        "predicted_AVG": 0.2527,
        "predicted_BB": 0.318,
        "predicted_H": 1.0463,
        "predicted_HBP": 0.02,
        "predicted_HR": 0.2157,
        "predicted_OBP": 0.3087,
        "predicted_R": 0.5617,
        "predicted_RBI": 0.7063,
        "predicted_SLG": 0.4845,
        "predicted_SO": 0.6881
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.257,
          "after": 0.2536,
          "delta": -0.0034,
          "percent_delta": -0.0132,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.16,
          "after": 4.1388,
          "delta": -0.0212,
          "percent_delta": -0.0051,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.245,
          "after": 0.2527,
          "delta": 0.0077,
          "percent_delta": 0.0314,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.357,
          "after": 0.318,
          "delta": -0.039,
          "percent_delta": -0.1092,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.02,
          "after": 1.0463,
          "delta": 0.0263,
          "percent_delta": 0.0258,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2,
          "after": 0.2157,
          "delta": 0.0157,
          "percent_delta": 0.0785,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.309,
          "after": 0.3087,
          "delta": -0.0003,
          "percent_delta": -0.001,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.557,
          "after": 0.5617,
          "delta": 0.0047,
          "percent_delta": 0.0084,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.68,
          "after": 0.7063,
          "delta": 0.0263,
          "percent_delta": 0.0387,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.475,
          "after": 0.4845,
          "delta": 0.0095,
          "percent_delta": 0.02,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.686,
          "after": 0.6881,
          "delta": 0.0021,
          "percent_delta": 0.0031,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.475,
          "after": 0.4845,
          "delta": 0.0095,
          "percent_delta": 0.02,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 70
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2536,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.1388,
        "predicted_AVG": 0.258,
        "predicted_BB": 0.3211,
        "predicted_H": 1.068,
        "predicted_HBP": 0.02,
        "predicted_HR": 0.2197,
        "predicted_OBP": 0.3115,
        "predicted_R": 0.5837,
        "predicted_RBI": 0.734,
        "predicted_SLG": 0.4788,
        "predicted_SO": 0.6814
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2536,
          "after": 0.2536,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.1388,
          "after": 4.1388,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2527,
          "after": 0.258,
          "delta": 0.0053,
          "percent_delta": 0.021,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.318,
          "after": 0.3211,
          "delta": 0.0031,
          "percent_delta": 0.0097,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0463,
          "after": 1.068,
          "delta": 0.0217,
          "percent_delta": 0.0207,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.02,
          "after": 0.02,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2157,
          "after": 0.2197,
          "delta": 0.004,
          "percent_delta": 0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3087,
          "after": 0.3115,
          "delta": 0.0028,
          "percent_delta": 0.0091,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5617,
          "after": 0.5837,
          "delta": 0.022,
          "percent_delta": 0.0392,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.7063,
          "after": 0.734,
          "delta": 0.0277,
          "percent_delta": 0.0392,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4845,
          "after": 0.4788,
          "delta": -0.0057,
          "percent_delta": -0.0118,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6881,
          "after": 0.6814,
          "delta": -0.0067,
          "percent_delta": -0.0097,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2527,
          "after": 0.258,
          "delta": 0.0053,
          "percent_delta": 0.021,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4845,
          "after": 0.4788,
          "delta": -0.0057,
          "percent_delta": -0.0118,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.16), rates preserved: AVG=0.257 HR/AB=0.053",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2536,
          "after": 0.0,
          "delta": -0.2536,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.1388,
          "after": 4.0,
          "delta": -0.1388,
          "percent_delta": -0.0335,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3211,
          "after": 0.0,
          "delta": -0.3211,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.068,
          "after": 1.0,
          "delta": -0.068,
          "percent_delta": -0.0637,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.02,
          "after": 0.0,
          "delta": -0.02,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2197,
          "after": 0.0,
          "delta": -0.2197,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.734,
          "after": 1.0,
          "delta": 0.266,
          "percent_delta": 0.3624,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6814,
          "after": 1.0,
          "delta": 0.3186,
          "percent_delta": 0.4676,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.6814,
          "after": 1.0,
          "delta": 0.3186,
          "percent_delta": 0.4676,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3211,
          "after": 0.0,
          "delta": -0.3211,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5837,
          "after": 1.0,
          "delta": 0.4163,
          "percent_delta": 0.7132,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5837,
          "after": 1.0,
          "delta": 0.4163,
          "percent_delta": 0.7132,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.258,
          "after": 0.25,
          "delta": -0.008,
          "percent_delta": -0.031,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3115,
          "after": 0.25,
          "delta": -0.0615,
          "percent_delta": -0.1974,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4788,
          "after": 0.25,
          "delta": -0.2288,
          "percent_delta": -0.4779,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4788,
          "after": 0.25,
          "delta": -0.2288,
          "percent_delta": -0.4779,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 5.0,
          "delta": 1.0,
          "percent_delta": 0.25,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.258,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_FB": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3115,
        "predicted_R": 1.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4788,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.258,
          "delta": 0.008,
          "percent_delta": 0.0321,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3115,
          "delta": 0.0615,
          "percent_delta": 0.2458,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4788,
          "delta": 0.2288,
          "percent_delta": 0.915,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4788,
          "delta": 0.2288,
          "percent_delta": 0.915,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.257,
        "after": 1.0,
        "delta": 0.743,
        "percent_delta": 2.8911,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.16,
        "after": 5.0,
        "delta": 0.84,
        "percent_delta": 0.2019,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.245,
        "after": 0.258,
        "delta": 0.013,
        "percent_delta": 0.0531,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.357,
        "after": 0.0,
        "delta": -0.357,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.02,
        "after": 2.0,
        "delta": 0.98,
        "percent_delta": 0.9608,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.2,
        "after": 0.0,
        "delta": -0.2,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.309,
        "after": 0.3115,
        "delta": 0.0025,
        "percent_delta": 0.0081,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.557,
        "after": 1.0,
        "delta": 0.443,
        "percent_delta": 0.7953,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.68,
        "after": 0.0,
        "delta": -0.68,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.475,
        "after": 0.4788,
        "delta": 0.0038,
        "percent_delta": 0.008,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.686,
        "after": 1.0,
        "delta": 0.314,
        "percent_delta": 0.4577,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 6,
      "deboosted_metrics": 3,
      "better_metrics": 5,
      "worse_metrics": 4,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 1.02,
        "after": 2.0,
        "delta": 0.98,
        "percent_delta": 0.9608,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.68,
        "after": 0.0,
        "delta": -0.68,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.257-
predicted_3B0.000-
predicted_AB4.160-
predicted_AVG0.245-
predicted_BB0.357-
predicted_H1.020-
predicted_HR0.200-
predicted_OBP0.309-
predicted_R0.557-
predicted_RBI0.680-
predicted_SLG0.475-
predicted_SO0.686-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.254-0.003
predicted_3B0.0000.000
predicted_AB4.139-0.021
predicted_AVG0.2530.008
predicted_BB0.318-0.039
predicted_H1.0460.026
predicted_HBP0.020-
predicted_HR0.2160.016
predicted_OBP0.309-0.000
predicted_R0.5620.005
predicted_RBI0.7060.026
predicted_SLG0.4840.010
predicted_SO0.6880.002
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2540.000
predicted_3B0.0000.000
predicted_AB4.1390.000
predicted_AVG0.2580.005
predicted_BB0.3210.003
predicted_H1.0680.022
predicted_HBP0.0200.000
predicted_HR0.2200.004
predicted_OBP0.3110.003
predicted_R0.5840.022
predicted_RBI0.7340.028
predicted_SLG0.479-0.006
predicted_SO0.681-0.007
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.16), rates preserved: AVG=0.257 HR/AB=0.053

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.254
predicted_3B0.000-0.000
predicted_AB4.000-0.139
predicted_AVG0.250-0.008
predicted_BB0.000-0.321
predicted_H1.000-0.068
predicted_HR0.000-0.220
predicted_OBP0.250-0.061
predicted_R1.0000.416
predicted_RBI1.0000.266
predicted_SLG0.250-0.229
predicted_SO1.0000.319
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB5.0001.000
BB0.0000.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R1.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 70
Reference playing time: 4.160
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-22.0005.0001.0000.0001.0003.0002.0000.0003.0000.22730.22730.40910.22730.04540.13640.00000.1364
last_100.2010-44.00011.0003.0000.0005.00010.0008.0002.0007.0000.25000.28260.65910.25000.11360.22730.04540.1591
season0.6070-277.00078.00018.0000.00013.00052.00039.00025.00048.0000.28160.34310.48740.28160.04690.18770.09020.1733
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2490
predicted_3B0.0010
predicted_AB4.1100
predicted_AVG0.2632
predicted_BB0.2650
predicted_H1.0820
predicted_HBP0.0200
predicted_HR0.2370
predicted_OBP0.3083
predicted_R0.5680
predicted_RBI0.7420
predicted_SLG0.4975
predicted_SO0.6910
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.25700.24900.2536model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.16004.11004.1388model_form_blend
predicted_AVG0.24500.26320.2527model_form_blend
predicted_BB0.35700.26500.3180model_form_blend
predicted_H1.02001.08201.0463model_form_blend
predicted_HBP-0.02000.0200form_only
predicted_HR0.20000.23700.2157model_form_blend
predicted_OBP0.30900.30830.3087model_form_blend
predicted_R0.55700.56800.5617model_form_blend
predicted_RBI0.68000.74200.7063model_form_blend
predicted_SLG0.47500.49750.4845model_form_blend
predicted_SO0.68600.69100.6881model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date246
Season rows before report date246
Report year2026
Profile rows used70
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB5
H2
2B1
3B0
HR0
R1
RBI0
BB0
SO1
SF0
HBP0
season_avg0.282

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP1
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB1
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B
gameID20260617_SD@STL
game_typefull
mlbID676475
playerID676475
playerNameAlec Burleson
pos1B
startedTrue
startingPosition1B
teamSTL
teamID26
game_date2026-06-17
sl_k_percent15.4
sl_bb_percent8.4
sl_woba0.361
sl_xwoba0.39
sl_xba0.297
sl_xslg0.558
sl_sweet_spot_percent34.5
sl_barrel_batted_rate11.5
sl_hard_hit_percent47.7
sl_exit_velocity_avg91.6
sl_launch_angle_avg12.1
sl_whiff_percent20.8
sl_swing_percent50.0
José Fermín (665877) · BATTER · CF · Team STL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 84
All-history rows before 20260618: 84
System season_avg: 0.2650
Data season_avg (2026 season-to-date): 0.2232
Diff (system - data): 0.0418
System opponent_avg: 0.1860
System season_avg diverges from 2026 season-to-date by 0.0418. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1280.0000.000Hitting_2B0.1190.000-0.1190.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.5135.0003.000Hitting_AB2.7741.0002.2264.000
predicted_AVG0.2710.2000.333Hitting_AVG0.2230.000-0.0230.200
predicted_BB0.1790.0000.000Hitting_BB0.2500.000-0.2500.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.2401.0001.000Hitting_H0.6190.0000.3811.000
predicted_HR0.0300.0000.000Hitting_HR0.0600.000-0.0600.000
predicted_OBP0.3030.2000.333Hitting_OBP0.2830.000-0.0830.200
predicted_R0.2050.0000.000Hitting_R0.1790.000-0.1790.000
predicted_RBI0.1500.0000.000Hitting_RBI0.3330.000-0.3330.000
predicted_SLG0.3740.2000.333Hitting_SLG0.3300.000-0.1300.200
predicted_SO0.4361.0001.000Hitting_SO0.5240.0000.4761.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics3
Deboosted Metrics7
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_AB: 2.5130 -> 5.0000 (boost 2.4870, better)
Biggest Deboostpredicted_R: 0.2050 -> 0.0000 (deboost -0.2050, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend66060predicted_H: 0.2400 -> 0.4782 (boost 0.2382, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.3790 -> 0.2731 (deboost -0.1059, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling63324predicted_SO: 0.4585 -> 1.0000 (boost 0.5415, worse)predicted_RBI: 0.2416 -> 0.0000 (deboost -0.2416, worse)AB rounded to 3 (raw=2.67), rates preserved: AVG=0.183 HR/AB=0.014
5consistency_constraints10101-predicted_R: 0.2535 -> 0.0000 (deboost -0.2535, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.1829 -> 0.3330 (boost 0.1501, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference11010predicted_AB: 3.0000 -> 5.0000 (boost 2.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.1829 (deboost -0.1501, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "665877",
  "player_name": "José Fermín",
  "position": "CF",
  "team": "STL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.128,
        "predicted_3B": 0.0,
        "predicted_AB": 2.513,
        "predicted_AVG": 0.271,
        "predicted_BB": 0.179,
        "predicted_H": 0.24,
        "predicted_HR": 0.03,
        "predicted_OBP": 0.303,
        "predicted_R": 0.205,
        "predicted_RBI": 0.15,
        "predicted_SLG": 0.374,
        "predicted_SO": 0.436
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1238,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.6683,
        "predicted_AVG": 0.2799,
        "predicted_BB": 0.1724,
        "predicted_H": 0.4782,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.0377,
        "predicted_OBP": 0.3144,
        "predicted_R": 0.2439,
        "predicted_RBI": 0.2325,
        "predicted_SLG": 0.379,
        "predicted_SO": 0.463
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.128,
          "after": 0.1238,
          "delta": -0.0042,
          "percent_delta": -0.0328,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.513,
          "after": 2.6683,
          "delta": 0.1553,
          "percent_delta": 0.0618,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.271,
          "after": 0.2799,
          "delta": 0.0089,
          "percent_delta": 0.0328,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.179,
          "after": 0.1724,
          "delta": -0.0066,
          "percent_delta": -0.0369,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.24,
          "after": 0.4782,
          "delta": 0.2382,
          "percent_delta": 0.9925,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.03,
          "after": 0.0377,
          "delta": 0.0077,
          "percent_delta": 0.2567,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.303,
          "after": 0.3144,
          "delta": 0.0114,
          "percent_delta": 0.0376,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.205,
          "after": 0.2439,
          "delta": 0.0389,
          "percent_delta": 0.1898,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.15,
          "after": 0.2325,
          "delta": 0.0825,
          "percent_delta": 0.55,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.374,
          "after": 0.379,
          "delta": 0.005,
          "percent_delta": 0.0134,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.436,
          "after": 0.463,
          "delta": 0.027,
          "percent_delta": 0.0619,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 6,
        "deboosted_metrics": 0,
        "better_metrics": 6,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.24,
          "after": 0.4782,
          "delta": 0.2382,
          "percent_delta": 0.9925,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 39
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1238,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.6683,
        "predicted_AVG": 0.1829,
        "predicted_BB": 0.1741,
        "predicted_H": 0.4881,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.0384,
        "predicted_OBP": 0.233,
        "predicted_R": 0.2535,
        "predicted_RBI": 0.2416,
        "predicted_SLG": 0.2731,
        "predicted_SO": 0.4585
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1238,
          "after": 0.1238,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.6683,
          "after": 2.6683,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2799,
          "after": 0.1829,
          "delta": -0.097,
          "percent_delta": -0.3466,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1724,
          "after": 0.1741,
          "delta": 0.0017,
          "percent_delta": 0.0099,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.4782,
          "after": 0.4881,
          "delta": 0.0099,
          "percent_delta": 0.0207,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.006,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0377,
          "after": 0.0384,
          "delta": 0.0007,
          "percent_delta": 0.0186,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3144,
          "after": 0.233,
          "delta": -0.0814,
          "percent_delta": -0.2589,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.2439,
          "after": 0.2535,
          "delta": 0.0096,
          "percent_delta": 0.0394,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2325,
          "after": 0.2416,
          "delta": 0.0091,
          "percent_delta": 0.0391,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.379,
          "after": 0.2731,
          "delta": -0.1059,
          "percent_delta": -0.2794,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.463,
          "after": 0.4585,
          "delta": -0.0045,
          "percent_delta": -0.0097,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.379,
          "after": 0.2731,
          "delta": -0.1059,
          "percent_delta": -0.2794,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.67), rates preserved: AVG=0.183 HR/AB=0.014",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1238,
          "after": 0.0,
          "delta": -0.1238,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.6683,
          "after": 3.0,
          "delta": 0.3317,
          "percent_delta": 0.1243,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1741,
          "after": 0.0,
          "delta": -0.1741,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.4881,
          "after": 1.0,
          "delta": 0.5119,
          "percent_delta": 1.0488,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.0,
          "delta": -0.006,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0384,
          "after": 0.0,
          "delta": -0.0384,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2416,
          "after": 0.0,
          "delta": -0.2416,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.4585,
          "after": 1.0,
          "delta": 0.5415,
          "percent_delta": 1.181,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 3,
        "deboosted_metrics": 3,
        "better_metrics": 2,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.4585,
          "after": 1.0,
          "delta": 0.5415,
          "percent_delta": 1.181,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.2416,
          "after": 0.0,
          "delta": -0.2416,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.2535,
          "after": 0.0,
          "delta": -0.2535,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.2535,
          "after": 0.0,
          "delta": -0.2535,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1829,
          "after": 0.333,
          "delta": 0.1501,
          "percent_delta": 0.8207,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.233,
          "after": 0.333,
          "delta": 0.1,
          "percent_delta": 0.4292,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2731,
          "after": 0.333,
          "delta": 0.0599,
          "percent_delta": 0.2193,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1829,
          "after": 0.333,
          "delta": 0.1501,
          "percent_delta": 0.8207,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 5.0,
          "delta": 2.0,
          "percent_delta": 0.6667,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 5.0,
          "delta": 2.0,
          "percent_delta": 0.6667,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 5.0,
        "predicted_AVG": 0.1829,
        "predicted_BB": 0.0,
        "predicted_CF": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.233,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.2731,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1829,
          "delta": -0.1501,
          "percent_delta": -0.4507,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.233,
          "delta": -0.1,
          "percent_delta": -0.3004,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.2731,
          "delta": -0.0599,
          "percent_delta": -0.1799,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1829,
          "delta": -0.1501,
          "percent_delta": -0.4507,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.128,
        "after": 0.0,
        "delta": -0.128,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.513,
        "after": 5.0,
        "delta": 2.487,
        "percent_delta": 0.9897,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.271,
        "after": 0.1829,
        "delta": -0.0881,
        "percent_delta": -0.3251,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.179,
        "after": 0.0,
        "delta": -0.179,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.24,
        "after": 1.0,
        "delta": 0.76,
        "percent_delta": 3.1667,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.03,
        "after": 0.0,
        "delta": -0.03,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_OBP",
        "before": 0.303,
        "after": 0.233,
        "delta": -0.07,
        "percent_delta": -0.231,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.205,
        "after": 0.0,
        "delta": -0.205,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.15,
        "after": 0.0,
        "delta": -0.15,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.374,
        "after": 0.2731,
        "delta": -0.1009,
        "percent_delta": -0.2698,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.436,
        "after": 1.0,
        "delta": 0.564,
        "percent_delta": 1.2936,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 3,
      "deboosted_metrics": 7,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 2.513,
        "after": 5.0,
        "delta": 2.487,
        "percent_delta": 0.9897,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_R",
        "before": 0.205,
        "after": 0.0,
        "delta": -0.205,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.128-
predicted_3B0.000-
predicted_AB2.513-
predicted_AVG0.271-
predicted_BB0.179-
predicted_H0.240-
predicted_HR0.030-
predicted_OBP0.303-
predicted_R0.205-
predicted_RBI0.150-
predicted_SLG0.374-
predicted_SO0.436-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.124-0.004
predicted_3B0.0010.001
predicted_AB2.6680.155
predicted_AVG0.2800.009
predicted_BB0.172-0.007
predicted_H0.4780.238
predicted_HBP0.006-
predicted_HR0.0380.008
predicted_OBP0.3140.011
predicted_R0.2440.039
predicted_RBI0.2330.083
predicted_SLG0.3790.005
predicted_SO0.4630.027
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1240.000
predicted_3B0.0010.000
predicted_AB2.6680.000
predicted_AVG0.183-0.097
predicted_BB0.1740.002
predicted_H0.4880.010
predicted_HBP0.0060.000
predicted_HR0.0380.001
predicted_OBP0.233-0.081
predicted_R0.2540.010
predicted_RBI0.2420.009
predicted_SLG0.273-0.106
predicted_SO0.459-0.005
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.67), rates preserved: AVG=0.183 HR/AB=0.014

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.124
predicted_3B0.000-0.001
predicted_AB3.0000.332
predicted_AVG0.3330.150
predicted_BB0.000-0.174
predicted_H1.0000.512
predicted_HR0.000-0.038
predicted_OBP0.3330.100
predicted_R0.000-0.254
predicted_RBI0.000-0.242
predicted_SLG0.3330.060
predicted_SO1.0000.541
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB5.0002.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 39
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-14.0005.0000.0000.0000.0002.0001.0000.0002.0000.35710.35710.35710.35710.00000.14290.00000.1429
last_100.2010-29.00011.0001.0000.0000.0003.0005.0001.0004.0000.37930.40000.41380.37930.00000.10350.03450.1379
season0.6039-98.00026.0005.0000.0002.00012.0008.0007.00017.0000.26530.31130.37760.26530.02040.12250.07140.1735
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1170
predicted_3B0.0020
predicted_AB2.9160
predicted_AVG0.2941
predicted_BB0.1620
predicted_H0.8580
predicted_HBP0.0060
predicted_HR0.0500
predicted_OBP0.3327
predicted_R0.3060
predicted_RBI0.3640
predicted_SLG0.3871
predicted_SO0.5060
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.12800.11700.1238model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB2.51302.91602.6683model_form_blend
predicted_AVG0.27100.29410.2799model_form_blend
predicted_BB0.17900.16200.1724model_form_blend
predicted_H0.24000.85800.4782model_form_blend
predicted_HBP-0.00600.0060form_only
predicted_HR0.03000.05000.0377model_form_blend
predicted_OBP0.30300.33270.3144model_form_blend
predicted_R0.20500.30600.2439model_form_blend
predicted_RBI0.15000.36400.2325model_form_blend
predicted_SLG0.37400.38710.3790model_form_blend
predicted_SO0.43600.50600.4630model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date84
Season rows before report date84
Report year2026
Profile rows used39
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB5
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.265

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB1
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder9
Hitting_substitutionOrder1
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedPH-CF
gameID20260617_SD@STL
game_typeph
mlbID665877
noteFlied out for Church in the 7th.
playerID665877
playerNameJosé Fermín
posLF
startedFalse
startingPositionPH
teamSTL
teamID26
game_date2026-06-17
sl_k_percent15.7
sl_bb_percent7.4
sl_woba0.309
sl_xwoba0.264
sl_xba0.224
sl_xslg0.302
sl_sweet_spot_percent25.6
sl_barrel_batted_rate1.2
sl_hard_hit_percent31.7
sl_exit_velocity_avg85.8
sl_launch_angle_avg18.0
sl_whiff_percent14.1
sl_swing_percent38.9
Pedro Pagés (686780) · BATTER · C · Team STL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 134
All-history rows before 20260618: 134
System season_avg: 0.2280
Data season_avg (2026 season-to-date): 0.2323
Diff (system - data): -0.0043
System opponent_avg: 0.1910

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1581.0000.000Hitting_2B0.1270.0000.8731.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.2373.0003.000Hitting_AB3.3731.000-0.3732.000
predicted_AVG0.2590.3330.333Hitting_AVG0.2320.0000.1010.333
predicted_BB0.1320.0000.000Hitting_BB0.1490.000-0.1490.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.7001.0001.000Hitting_H0.7840.0000.2161.000
predicted_HR0.0800.0000.000Hitting_HR0.1190.000-0.1190.000
predicted_OBP0.2990.5000.333Hitting_OBP0.2720.0000.2280.500
predicted_R0.3161.0000.000Hitting_R0.3510.0000.6491.000
predicted_RBI0.3001.0000.000Hitting_RBI0.2760.0000.7241.000
predicted_SLG0.4030.6670.333Hitting_SLG0.3760.0000.2910.667
predicted_SO0.8420.0001.000Hitting_SO0.9100.000-0.9100.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics4
Deboosted Metrics7
Better Metrics5
Worse Metrics6
Biggest Boostpredicted_2B: 0.1580 -> 1.0000 (boost 0.8420, better)
Biggest Deboostpredicted_SO: 0.8420 -> 0.0000 (deboost -0.8420, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend22020predicted_2B: 0.1580 -> 0.2086 (boost 0.0506, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.4089 -> 0.3758 (deboost -0.0331, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_H: 0.7605 -> 1.0000 (boost 0.2395, better)predicted_RBI: 0.2966 -> 0.0000 (deboost -0.2966, worse)AB rounded to 3 (raw=3.24), rates preserved: AVG=0.235 HR/AB=0.024
5bvp_blend00000--Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.167)
6consistency_constraints10101-predicted_R: 0.3238 -> 0.0000 (deboost -0.3238, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context32121predicted_AVG: 0.2376 -> 0.3330 (boost 0.0954, better)predicted_SLG: 0.3758 -> 0.3330 (deboost -0.0428, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference54150predicted_2B: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
9current_json_final31212predicted_SLG: 0.3330 -> 0.3758 (boost 0.0428, better)predicted_AVG: 0.3330 -> 0.2376 (deboost -0.0954, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "686780",
  "player_name": "Pedro Pagés",
  "position": "C",
  "team": "STL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.158,
        "predicted_3B": 0.0,
        "predicted_AB": 3.237,
        "predicted_AVG": 0.259,
        "predicted_BB": 0.132,
        "predicted_H": 0.7,
        "predicted_HR": 0.08,
        "predicted_OBP": 0.299,
        "predicted_R": 0.316,
        "predicted_RBI": 0.3,
        "predicted_SLG": 0.403,
        "predicted_SO": 0.842
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2086,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.2014,
        "predicted_AVG": 0.2588,
        "predicted_BB": 0.1296,
        "predicted_H": 0.7451,
        "predicted_HBP": 0.03,
        "predicted_HR": 0.076,
        "predicted_OBP": 0.2969,
        "predicted_R": 0.3116,
        "predicted_RBI": 0.2854,
        "predicted_SLG": 0.4089,
        "predicted_SO": 0.8048
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.158,
          "after": 0.2086,
          "delta": 0.0506,
          "percent_delta": 0.3203,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.237,
          "after": 3.2014,
          "delta": -0.0356,
          "percent_delta": -0.011,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.259,
          "after": 0.2588,
          "delta": -0.0002,
          "percent_delta": -0.0008,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.132,
          "after": 0.1296,
          "delta": -0.0024,
          "percent_delta": -0.0182,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7,
          "after": 0.7451,
          "delta": 0.0451,
          "percent_delta": 0.0644,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.08,
          "after": 0.076,
          "delta": -0.004,
          "percent_delta": -0.05,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.299,
          "after": 0.2969,
          "delta": -0.0021,
          "percent_delta": -0.007,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.316,
          "after": 0.3116,
          "delta": -0.0044,
          "percent_delta": -0.0139,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3,
          "after": 0.2854,
          "delta": -0.0146,
          "percent_delta": -0.0487,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.403,
          "after": 0.4089,
          "delta": 0.0059,
          "percent_delta": 0.0146,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.842,
          "after": 0.8048,
          "delta": -0.0372,
          "percent_delta": -0.0442,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.158,
          "after": 0.2086,
          "delta": 0.0506,
          "percent_delta": 0.3203,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 38
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2086,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.2014,
        "predicted_AVG": 0.2376,
        "predicted_BB": 0.1309,
        "predicted_H": 0.7605,
        "predicted_HBP": 0.03,
        "predicted_HR": 0.0774,
        "predicted_OBP": 0.2675,
        "predicted_R": 0.3238,
        "predicted_RBI": 0.2966,
        "predicted_SLG": 0.3758,
        "predicted_SO": 0.797
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2086,
          "after": 0.2086,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.2014,
          "after": 3.2014,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2588,
          "after": 0.2376,
          "delta": -0.0212,
          "percent_delta": -0.0819,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1296,
          "after": 0.1309,
          "delta": 0.0013,
          "percent_delta": 0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7451,
          "after": 0.7605,
          "delta": 0.0154,
          "percent_delta": 0.0207,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.03,
          "after": 0.03,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.076,
          "after": 0.0774,
          "delta": 0.0014,
          "percent_delta": 0.0184,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2969,
          "after": 0.2675,
          "delta": -0.0294,
          "percent_delta": -0.099,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3116,
          "after": 0.3238,
          "delta": 0.0122,
          "percent_delta": 0.0392,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2854,
          "after": 0.2966,
          "delta": 0.0112,
          "percent_delta": 0.0392,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4089,
          "after": 0.3758,
          "delta": -0.0331,
          "percent_delta": -0.0809,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8048,
          "after": 0.797,
          "delta": -0.0078,
          "percent_delta": -0.0097,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4089,
          "after": 0.3758,
          "delta": -0.0331,
          "percent_delta": -0.0809,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.24), rates preserved: AVG=0.235 HR/AB=0.024",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2086,
          "after": 0.0,
          "delta": -0.2086,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.2014,
          "after": 3.0,
          "delta": -0.2014,
          "percent_delta": -0.0629,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1309,
          "after": 0.0,
          "delta": -0.1309,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7605,
          "after": 1.0,
          "delta": 0.2395,
          "percent_delta": 0.3149,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.03,
          "after": 0.0,
          "delta": -0.03,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0774,
          "after": 0.0,
          "delta": -0.0774,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2966,
          "after": 0.0,
          "delta": -0.2966,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.797,
          "after": 1.0,
          "delta": 0.203,
          "percent_delta": 0.2547,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.7605,
          "after": 1.0,
          "delta": 0.2395,
          "percent_delta": 0.3149,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.2966,
          "after": 0.0,
          "delta": -0.2966,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.167)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9333,
        "bvp": 0.0667
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3238,
          "after": 0.0,
          "delta": -0.3238,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3238,
          "after": 0.0,
          "delta": -0.3238,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2376,
          "after": 0.333,
          "delta": 0.0954,
          "percent_delta": 0.4015,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2675,
          "after": 0.333,
          "delta": 0.0655,
          "percent_delta": 0.2449,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3758,
          "after": 0.333,
          "delta": -0.0428,
          "percent_delta": -0.1139,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2376,
          "after": 0.333,
          "delta": 0.0954,
          "percent_delta": 0.4015,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3758,
          "after": 0.333,
          "delta": -0.0428,
          "percent_delta": -0.1139,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 1.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 4,
        "deboosted_metrics": 1,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2376,
        "predicted_BB": 0.0,
        "predicted_C": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2675,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3758,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2376,
          "delta": -0.0954,
          "percent_delta": -0.2866,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2675,
          "delta": -0.0655,
          "percent_delta": -0.1967,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3758,
          "delta": 0.0428,
          "percent_delta": 0.1284,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3758,
          "delta": 0.0428,
          "percent_delta": 0.1284,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2376,
          "delta": -0.0954,
          "percent_delta": -0.2866,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.158,
        "after": 1.0,
        "delta": 0.842,
        "percent_delta": 5.3291,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.237,
        "after": 3.0,
        "delta": -0.237,
        "percent_delta": -0.0732,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.259,
        "after": 0.2376,
        "delta": -0.0214,
        "percent_delta": -0.0826,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.132,
        "after": 0.0,
        "delta": -0.132,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.7,
        "after": 1.0,
        "delta": 0.3,
        "percent_delta": 0.4286,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.08,
        "after": 0.0,
        "delta": -0.08,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.299,
        "after": 0.2675,
        "delta": -0.0315,
        "percent_delta": -0.1054,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.316,
        "after": 1.0,
        "delta": 0.684,
        "percent_delta": 2.1646,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.3,
        "after": 1.0,
        "delta": 0.7,
        "percent_delta": 2.3333,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.403,
        "after": 0.3758,
        "delta": -0.0272,
        "percent_delta": -0.0675,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.842,
        "after": 0.0,
        "delta": -0.842,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 4,
      "deboosted_metrics": 7,
      "better_metrics": 5,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_2B",
        "before": 0.158,
        "after": 1.0,
        "delta": 0.842,
        "percent_delta": 5.3291,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.842,
        "after": 0.0,
        "delta": -0.842,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.158-
predicted_3B0.000-
predicted_AB3.237-
predicted_AVG0.259-
predicted_BB0.132-
predicted_H0.700-
predicted_HR0.080-
predicted_OBP0.299-
predicted_R0.316-
predicted_RBI0.300-
predicted_SLG0.403-
predicted_SO0.842-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2090.051
predicted_3B0.0010.001
predicted_AB3.201-0.036
predicted_AVG0.259-0.000
predicted_BB0.130-0.002
predicted_H0.7450.045
predicted_HBP0.030-
predicted_HR0.076-0.004
predicted_OBP0.297-0.002
predicted_R0.312-0.004
predicted_RBI0.285-0.015
predicted_SLG0.4090.006
predicted_SO0.805-0.037
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2090.000
predicted_3B0.0010.000
predicted_AB3.2010.000
predicted_AVG0.238-0.021
predicted_BB0.1310.001
predicted_H0.7600.015
predicted_HBP0.0300.000
predicted_HR0.0770.001
predicted_OBP0.268-0.029
predicted_R0.3240.012
predicted_RBI0.2970.011
predicted_SLG0.376-0.033
predicted_SO0.797-0.008
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.24), rates preserved: AVG=0.235 HR/AB=0.024

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.167)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.209
predicted_3B0.000-0.001
predicted_AB3.000-0.201
predicted_AVG0.3330.095
predicted_BB0.000-0.131
predicted_H1.0000.240
predicted_HR0.000-0.077
predicted_OBP0.3330.066
predicted_R0.000-0.324
predicted_RBI0.000-0.297
predicted_SLG0.333-0.043
predicted_SO1.0000.203
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP1.0001.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 38
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-12.0004.0003.0000.0000.0001.0001.0000.0003.0000.33330.33330.58330.33330.00000.08330.00000.2500
last_100.2010-28.0008.0003.0000.0000.0001.0002.0001.0005.0000.28570.31030.39290.28570.00000.03570.03570.1786
season0.6038-123.00028.0006.0000.0004.00010.00012.0005.00032.0000.22760.26720.37400.22760.03250.08130.04060.2602
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2860
predicted_3B0.0020
predicted_AB3.1470
predicted_AVG0.2585
predicted_BB0.1260
predicted_H0.8140
predicted_HBP0.0300
predicted_HR0.0700
predicted_OBP0.2936
predicted_R0.3050
predicted_RBI0.2630
predicted_SLG0.4178
predicted_SO0.7480
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.15800.28600.2086model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB3.23703.14703.2014model_form_blend
predicted_AVG0.25900.25850.2588model_form_blend
predicted_BB0.13200.12600.1296model_form_blend
predicted_H0.70000.81400.7451model_form_blend
predicted_HBP-0.03000.0300form_only
predicted_HR0.08000.07000.0760model_form_blend
predicted_OBP0.29900.29360.2969model_form_blend
predicted_R0.31600.30500.3116model_form_blend
predicted_RBI0.30000.26300.2854model_form_blend
predicted_SLG0.40300.41780.4089model_form_blend
predicted_SO0.84200.74800.8048model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date134
Season rows before report date134
Report year2026
Profile rows used38
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B1
3B0
HR0
R1
RBI1
BB0
SO0
SF0
HBP1
season_avg0.228

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB1
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder7
Hitting_substitutionOrder2
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedC
gameID20260617_SD@STL
game_typeshort
mlbID686780
playerID686780
playerNamePedro Pagés
posC
startedFalse
startingPositionC
teamSTL
teamID26
game_date2026-06-17
sl_k_percent23.7
sl_bb_percent3.7
sl_woba0.281
sl_xwoba0.284
sl_xba0.232
sl_xslg0.38
sl_sweet_spot_percent32.3
sl_barrel_batted_rate6.3
sl_hard_hit_percent38.5
sl_exit_velocity_avg87.0
sl_launch_angle_avg14.2
sl_whiff_percent27.1
sl_swing_percent50.6
Matthew Liberatore (669461) · PITCHER · Starter · Team STL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 14
All-history rows before 20260618: 14

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB2.0002.0002.000Pitching_BB1.9291.0000.0711.000
predicted_ER1.0001.0001.000Pitching_ER2.6434.000-1.643-3.000
predicted_H5.0005.0005.000Pitching_H5.6435.000-0.6430.000
predicted_IP4.2004.2004.200Pitching_InningsPitched4.9144.100-0.7140.100
predicted_SO6.0006.0006.000Pitching_SO4.6434.0001.3572.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics2
Boosted Metrics1
Deboosted Metrics1
Better Metrics0
Worse Metrics2
Biggest Boostpredicted_H: 3.0000 -> 5.0000 (boost 2.0000, worse)
Biggest Deboostpredicted_IP: 5.0000 -> 4.2000 (deboost -0.8000, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2starter_usage_guardrail10101-predicted_IP: 5.0000 -> 4.2000 (deboost -0.8000, worse)Starter workload capped by recent innings, season ERA/WHIP, and team-form context.
3starter_quality_floor11001predicted_H: 3.0000 -> 5.0000 (boost 2.0000, worse)-Weak starter floor restored expected damage from recent form instead of assigning it to zero-inning bullpen rows.
4current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "669461",
  "player_name": "Matthew Liberatore",
  "position": "Starter",
  "team": "STL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 1.0,
        "predicted_H": 3.0,
        "predicted_HR": 1.0,
        "predicted_IP": 5.0,
        "predicted_SO": 6.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "starter_usage_guardrail",
      "description": "Starter workload capped by recent innings, season ERA/WHIP, and team-form context.",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 1.0,
        "predicted_H": 3.0,
        "predicted_HR": 1.0,
        "predicted_IP": 4.2,
        "predicted_SO": 6.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.0,
          "after": 4.2,
          "delta": -0.8,
          "percent_delta": -0.16,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 6.0,
          "after": 6.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 5.0,
          "after": 4.2,
          "delta": -0.8,
          "percent_delta": -0.16,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 3,
      "step": "starter_quality_floor",
      "description": "Weak starter floor restored expected damage from recent form instead of assigning it to zero-inning bullpen rows.",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 1.0,
        "predicted_H": 5.0,
        "predicted_HR": 1.0,
        "predicted_IP": 4.2,
        "predicted_SO": 6.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 3.0,
          "after": 5.0,
          "delta": 2.0,
          "percent_delta": 0.6667,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 4.2,
          "after": 4.2,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 6.0,
          "after": 6.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 3.0,
          "after": 5.0,
          "delta": 2.0,
          "percent_delta": 0.6667,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 1.0,
        "predicted_H": 5.0,
        "predicted_HR": 1.0,
        "predicted_IP": 4.2,
        "predicted_R": 1.0,
        "predicted_SO": 6.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 4.2,
          "after": 4.2,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 6.0,
          "after": 6.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 3.0,
        "after": 5.0,
        "delta": 2.0,
        "percent_delta": 0.6667,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 5.0,
        "after": 4.2,
        "delta": -0.8,
        "percent_delta": -0.16,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 6.0,
        "after": 6.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 2,
      "boosted_metrics": 1,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 2,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 3.0,
        "after": 5.0,
        "delta": 2.0,
        "percent_delta": 0.6667,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 5.0,
        "after": 4.2,
        "delta": -0.8,
        "percent_delta": -0.16,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB2.000-
predicted_ER1.000-
predicted_H3.000-
predicted_HR1.000-
predicted_IP5.000-
predicted_SO6.000-
2. starter_usage_guardrail

Starter workload capped by recent innings, season ERA/WHIP, and team-form context.

MetricValueDelta vs Prev Step
predicted_BB2.0000.000
predicted_ER1.0000.000
predicted_H3.0000.000
predicted_HR1.0000.000
predicted_IP4.200-0.800
predicted_SO6.0000.000
3. starter_quality_floor

Weak starter floor restored expected damage from recent form instead of assigning it to zero-inning bullpen rows.

MetricValueDelta vs Prev Step
predicted_BB2.0000.000
predicted_ER1.0000.000
predicted_H5.0002.000
predicted_HR1.0000.000
predicted_IP4.2000.000
predicted_SO6.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 14
Reference playing time: 5.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.45523.20014.00026.0009.00031.0005.0005.32391.47890.59161.09860.38031.30990.2113
last_100.351049.20027.00054.00019.00053.0009.0004.89261.46980.54361.08730.38261.06710.1812
season0.201470.20037.00079.00027.00065.00014.0004.71231.50000.52361.11790.38210.91980.1981
Weighted Prediction From Real Data
MetricValue
predicted_BB1.8420
predicted_ER2.6660
predicted_ERA4.9079
predicted_H5.2110
predicted_HR0.9020
predicted_IP5.0000
predicted_SO5.3380
predicted_WHIP1.4424
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB2.00001.84201.9149model_form_blend
predicted_ER1.00002.66601.8976model_form_blend
predicted_ERA-4.90794.9079form_only
predicted_H3.00005.21104.1913model_form_blend
predicted_HR1.00000.90200.9472model_form_blend
predicted_IP5.00005.00005.0000model_form_blend
predicted_SO6.00005.33805.6433model_form_blend
predicted_WHIP-1.44241.4424form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date14
Season rows before report date14
Report year2026
Profile rows used14
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP4.2
H5
R1
ER1
BB2
SO6
HR1
BF21
Pitches95

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced18
Pitching_ER4
Pitching_ERA4.71
Pitching_Flyouts1
Pitching_Groundouts4
Pitching_H5
Pitching_HBP0
Pitching_HR3
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched4.1
Pitching_Pitches70
Pitching_R4
Pitching_SO4
Pitching_Strikes46
Pitching_Wild Pitch0
Pitching_pitchingOrder1
allPositionsPlayedP
gameID20260613_STL@MIN
game_typefull
mlbID669461
playerID669461
playerNameMatthew Liberatore
posP
startedTrue
startingPositionP
teamSTL
teamID26
game_date2026-06-13
sl_k_percent21.2
sl_bb_percent8.8
sl_woba0.358
sl_xwoba0.359
sl_sweet_spot_percent40.5
sl_barrel_batted_rate10.2
sl_hard_hit_percent44.7
sl_whiff_percent22.5
sl_swing_percent47.5
sl_avg_best_speed81.366531132
sl_avg_hyper_speed95.244232075
George Soriano (666277) · PITCHER · Middle Reliever · Team STL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 31
All-history rows before 20260618: 31

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB2.0002.0002.000Pitching_BB0.3230.0001.6772.000
predicted_ER0.0000.0000.000Pitching_ER0.3231.000-0.323-1.000
predicted_H0.0000.0000.000Pitching_H0.7743.000-0.774-3.000
predicted_IP1.1001.1001.100Pitching_InningsPitched0.8351.2000.265-0.100
predicted_SO1.0001.0001.000Pitching_SO0.8713.0000.129-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final11010predicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "666277",
  "player_name": "George Soriano",
  "position": "Middle Reliever",
  "team": "STL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.1,
        "predicted_R": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB2.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 31
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.2002.0007.0000.0005.0001.0003.17651.23530.35291.23530.00000.88230.1765
last_100.351010.2002.0009.0000.00011.0001.0001.68750.84380.18750.84380.00001.03120.0938
season0.203130.10010.00024.00010.00027.0004.0002.96701.12090.32970.79120.32970.89010.1319
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2010
predicted_ER0.3860
predicted_ERA3.4729
predicted_H0.9930
predicted_HR0.1420
predicted_IP1.0000
predicted_SO0.9370
predicted_WHIP1.1941
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB2.00000.20101.1754model_form_blend
predicted_ER0.00000.38600.1769model_form_blend
predicted_ERA-3.47293.4729form_only
predicted_H0.00000.99300.4551model_form_blend
predicted_HR0.00000.14200.0651model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO1.00000.93700.9711model_form_blend
predicted_WHIP-1.19411.1941form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date31
Season rows before report date31
Report year2026
Profile rows used31
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.1
H0
R0
ER0
BB2
SO1
HR0
BF6
Pitches27

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced8
Pitching_ER1
Pitching_ERA2.97
Pitching_Flyouts1
Pitching_Groundouts1
Pitching_H3
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners3
Pitching_Inherited Runners Scored1
Pitching_InningsPitched1.2
Pitching_Pitches34
Pitching_R1
Pitching_SO3
Pitching_Strikes25
Pitching_Wild Pitch0
Pitching_decisionL, BS
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260614_STL@MIN
game_typefull
mlbID666277
playerID666277
playerNameGeorge Soriano
posP
startedFalse
startingPositionP
teamSTL
teamID26
game_date2026-06-14
sl_k_percent21.6
sl_bb_percent8.0
sl_woba0.285
sl_xwoba0.325
sl_sweet_spot_percent26.4
sl_barrel_batted_rate10.3
sl_hard_hit_percent42.5
sl_whiff_percent32.5
sl_swing_percent49.4
sl_avg_best_speed80.886381136
sl_avg_hyper_speed94.904552759
JoJo Romero (668941) · PITCHER · Middle Reliever · Team STL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 33
All-history rows before 20260618: 33

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB0.3641.0000.6360.000
predicted_ER0.0000.0000.000Pitching_ER0.4242.000-0.424-2.000
predicted_H0.0000.0000.000Pitching_H0.9093.000-0.909-3.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.7580.1000.2420.900
predicted_SO2.0002.0002.000Pitching_SO0.9701.0001.0301.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "668941",
  "player_name": "JoJo Romero",
  "position": "Middle Reliever",
  "team": "STL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO2.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 33
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.0003.0006.0001.0004.0001.0006.75001.75000.75001.50000.25001.00000.2500
last_100.35108.1006.00011.0003.00011.0001.0006.48001.68000.72001.32000.36001.32000.1200
season0.203332.00014.00030.00012.00032.0004.0003.93751.31250.43750.93750.37501.00000.1250
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2850
predicted_ER0.5100
predicted_ERA5.3952
predicted_H0.9960
predicted_HR0.1400
predicted_IP1.0000
predicted_SO0.8810
predicted_WHIP1.5056
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00000.28500.6683model_form_blend
predicted_ER0.00000.51000.2366model_form_blend
predicted_ERA-5.39525.3952form_only
predicted_H0.00000.99600.4621model_form_blend
predicted_HR0.00000.14000.0650model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO2.00000.88101.4808model_form_blend
predicted_WHIP-1.50561.5056form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date33
Season rows before report date33
Report year2026
Profile rows used33
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB1
SO2
HR0
BF4
Pitches17

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced5
Pitching_ER2
Pitching_ERA3.94
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H3
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.1
Pitching_Pitches19
Pitching_R2
Pitching_SO1
Pitching_Strikes10
Pitching_Wild Pitch0
Pitching_decisionH
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260614_STL@MIN
game_typefull
mlbID668941
playerID668941
playerNameJoJo Romero
posP
startedFalse
startingPositionP
teamSTL
teamID26
game_date2026-06-14
sl_k_percent23.4
sl_bb_percent8.8
sl_woba0.325
sl_xwoba0.344
sl_sweet_spot_percent37.8
sl_barrel_batted_rate6.7
sl_hard_hit_percent46.7
sl_whiff_percent23.1
sl_swing_percent38.8
sl_avg_best_speed82.263951364
sl_avg_hyper_speed96.318297471
Riley O'Brien (676617) · PITCHER · Middle Reliever · Team STL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 31
All-history rows before 20260618: 31

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.3551.000-0.355-1.000
predicted_ER0.0000.0000.000Pitching_ER0.4190.000-0.4190.000
predicted_H0.0000.0000.000Pitching_H0.8710.000-0.8710.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.9581.0000.0420.000
predicted_SO1.0001.0001.000Pitching_SO1.0320.000-0.0321.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "676617",
  "player_name": "Riley O'Brien",
  "position": "Middle Reliever",
  "team": "STL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 31
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.0001.0003.0006.0003.0000.0001.80001.80000.20000.60001.20000.60000.0000
last_100.351010.1007.00010.0009.0007.0000.0006.09681.83870.67740.96770.87100.67740.0000
season0.203131.10013.00027.00011.00032.0001.0003.73401.21280.41490.86170.35111.02130.0319
Weighted Prediction From Real Data
MetricValue
predicted_BB0.6690
predicted_ER0.4510
predicted_ERA4.0549
predicted_H0.8670
predicted_HR0.0690
predicted_IP1.0000
predicted_SO0.8120
predicted_WHIP1.5362
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.66900.3089model_form_blend
predicted_ER0.00000.45100.2083model_form_blend
predicted_ERA-4.05494.0549form_only
predicted_H0.00000.86700.4004model_form_blend
predicted_HR0.00000.06900.0319model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO1.00000.81200.9132model_form_blend
predicted_WHIP-1.53621.5362form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date31
Season rows before report date31
Report year2026
Profile rows used31
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB0
SO1
HR0
BF3
Pitches19

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB1
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER0
Pitching_ERA3.73
Pitching_Flyouts1
Pitching_Groundouts2
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches13
Pitching_R0
Pitching_SO0
Pitching_Strikes8
Pitching_Wild Pitch0
Pitching_decisionS
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260616_SD@STL
game_typefull
mlbID676617
playerID676617
playerNameRiley O'Brien
posP
startedFalse
startingPositionP
teamSTL
teamID26
game_date2026-06-16
sl_k_percent24.1
sl_bb_percent8.3
sl_woba0.286
sl_xwoba0.315
sl_sweet_spot_percent30.6
sl_barrel_batted_rate4.8
sl_hard_hit_percent38.8
sl_whiff_percent28.3
sl_swing_percent46.9
sl_avg_best_speed76.388369512
sl_avg_hyper_speed94.249898025
Ryne Stanek (592773) · PITCHER · Middle Reliever · Team STL
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 32
All-history rows before 20260618: 32

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB1.0001.0001.000Pitching_BB0.5620.0000.4381.000
predicted_ER0.0000.0000.000Pitching_ER0.5310.000-0.5310.000
predicted_H0.0000.0000.000Pitching_H0.8120.000-0.8120.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.7561.0000.2440.000
predicted_SO0.0000.0000.000Pitching_SO1.1252.000-1.125-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics1
Worse Metrics0
Biggest Boost-
Biggest Deboostpredicted_H: 2.0000 -> 0.0000 (deboost -2.0000, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10110-predicted_H: 2.0000 -> 0.0000 (deboost -2.0000, better)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "592773",
  "player_name": "Ryne Stanek",
  "position": "Middle Reliever",
  "team": "STL",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 2.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 1.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 0.0,
          "delta": -2.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 0.0,
          "delta": -2.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 2.0,
        "after": 0.0,
        "delta": -2.0,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 2.0,
        "after": 0.0,
        "delta": -2.0,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB1.000-
predicted_ER0.000-
predicted_H2.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 32
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.0003.0003.0000.0005.0003.0005.40000.60000.60000.60000.00001.00000.6000
last_100.351010.0003.0006.0002.0009.0003.0002.70000.80000.30000.60000.20000.90000.3000
season0.203229.10017.00026.00018.00036.0005.0005.21591.50000.57960.88640.61361.22730.1704
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2710
predicted_ER0.4960
predicted_ERA4.4598
predicted_H0.8040
predicted_HR0.2880
predicted_IP1.0000
predicted_SO0.9770
predicted_WHIP1.0750
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB1.00000.27100.6684model_form_blend
predicted_ER0.00000.49600.2256model_form_blend
predicted_ERA-4.45984.4598form_only
predicted_H2.00000.80401.4560model_form_blend
predicted_HR0.00000.28800.1310model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00000.97700.4444model_form_blend
predicted_WHIP-1.07501.0750form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date32
Season rows before report date32
Report year2026
Profile rows used32
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB1
SO0
HR0
BF4
Pitches17

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA5.22
Pitching_Flyouts0
Pitching_Groundouts1
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches19
Pitching_R0
Pitching_SO2
Pitching_Strikes13
Pitching_Wild Pitch0
Pitching_decisionH
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260616_SD@STL
game_typefull
mlbID592773
playerID592773
playerNameRyne Stanek
posP
startedFalse
startingPositionP
teamSTL
teamID26
game_date2026-06-16
sl_k_percent27.3
sl_bb_percent13.6
sl_woba0.332
sl_xwoba0.31
sl_sweet_spot_percent31.6
sl_barrel_batted_rate7.9
sl_hard_hit_percent36.8
sl_whiff_percent32.5
sl_swing_percent49.7
sl_avg_best_speed79.156418158
sl_avg_hyper_speed95.072765

Home Team: KC

Home Pitcher Deep Analysis

FieldValue
PitcherNoah Cameron
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score-0.1385
ESPN Rank176
Movement AvailableTrue
Primary Pitch-
Movement Score-0.1588
Avg Velo86.8924
Avg Spin2216.5960
HB Inches0
IVB Inches0
Release Extension0
Pre IP5.2000
Pre ER5
Pre H7
Pre BB2
Pre SO3
Season ERA4.1143
Season WHIP1.2143
Role Avg IP5.3850
Recent Avg IP5.6670
Last Start IP4.1000
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "KC",
    "games": 83,
    "wins": 31,
    "losses": 52,
    "win_pct": 0.3735,
    "runs_scored": 323.0,
    "runs_allowed": 391.0,
    "run_differential": -68.0,
    "run_differential_per_game": -0.8193,
    "avg_runs_scored": 3.8916,
    "avg_runs_allowed": 4.7108,
    "offense_index": 0.8634,
    "defense_index": 0.9568,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.9,
      "avg_runs_allowed": 5.1,
      "run_differential": -2.0
    },
    "available": true,
    "quality_score": -0.2425
  },
  "opponent": {
    "team": "STL",
    "games": 81,
    "wins": 46,
    "losses": 35,
    "win_pct": 0.5679,
    "runs_scored": 352.0,
    "runs_allowed": 328.0,
    "run_differential": 24.0,
    "run_differential_per_game": 0.2963,
    "avg_runs_scored": 4.3457,
    "avg_runs_allowed": 4.0494,
    "offense_index": 0.9641,
    "defense_index": 1.1131,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 3.8,
      "run_differential": 15.0
    },
    "available": true,
    "quality_score": 0.1289
  },
  "edges": {
    "quality_edge": -0.3714,
    "offense_edge": -0.1366,
    "opponent_offense_edge": -0.0359,
    "defense_strength": -0.0432,
    "opponent_defense_weakness": -0.1131,
    "recent_win_pct_edge": -0.2
  },
  "player_factors": {
    "ip": 0.9853,
    "run_prevention": 1.0171,
    "strikeout": 0.9917
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "702070",
    "profile": {
      "available": true,
      "pitcher_id": "702070",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 230.0,
        "k_percent": 21.7,
        "bb_percent": 5.8,
        "woba": 0.302,
        "xwoba": 0.32,
        "sweet_spot_percent": 38.3,
        "barrel_batted_rate": 9.4,
        "hard_hit_percent": 39.7,
        "avg_best_speed": 77.521,
        "avg_hyper_speed": 94.3712,
        "whiff_percent": 23.9,
        "swing_percent": 48.1
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.1676,
        "command_and_miss": 0.0286,
        "regression_edge": -0.5143,
        "xwoba_edge": -0.1429,
        "barrel_edge": -0.4667,
        "hard_hit_edge": -0.2,
        "whiff_edge": -0.2571,
        "bb_edge": 0.85,
        "pitch_design_score": -0.1588
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "702070",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 90,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 90,
          "pitch_usage": 0.0,
          "release_speed": 86.89238376821358,
          "release_spin_rate": 2216.5960244296075,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 90,
            "pitch_usage": 0.0,
            "release_speed": 86.89238376821358,
            "release_spin_rate": 2216.5960244296075,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 86.8924,
          "release_spin_rate": 2216.596,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.1588,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -1.1346,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": -0.1385,
      "sample_weight": 0.92,
      "run_prevention_factor": 1.0118,
      "strikeout_factor": 0.9863,
      "walk_factor": 0.9374,
      "homer_factor": 1.0456,
      "woba_minus_xwoba": -0.018,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "702070",
        "espn_id": 4417208,
        "player_name": "Noah Cameron",
        "team": "KC",
        "role": "pitcher",
        "espn_rank": 176,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 176,
          "gp_value": 13.0,
          "gp_rank": 329,
          "gs_value": 13.0,
          "gs_rank": 69,
          "qs_value": 5.0,
          "qs_rank": 51,
          "era_value": 4.1142,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 4.0,
          "l_rank": 62,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 70.0,
          "ip_rank": 76,
          "h_value": 68.0,
          "h_rank": 64,
          "er_value": 32.0,
          "er_rank": 73,
          "hr_value": 8.0,
          "hr_rank": 79,
          "bb_value": 17.0,
          "bb_rank": 157,
          "k_value": 64.0,
          "k_rank": 71,
          "k_per_9_value": 8.228572,
          "k_per_9_rank": 25,
          "whip_value": 1.2142,
          "whip_rank": null,
          "war_value": 0.56,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 2.0,
        "factor": 1.0109,
        "adjusted": 2
      },
      "predicted_H": {
        "original": 4.0,
        "factor": 1.0109,
        "adjusted": 4
      },
      "predicted_BB": {
        "original": 1.0,
        "factor": 0.9424,
        "adjusted": 1
      },
      "predicted_HR": {
        "original": 1.0,
        "factor": 1.042,
        "adjusted": 1
      },
      "predicted_SO": {
        "original": 5.0,
        "factor": 0.9874,
        "adjusted": 5
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 54.0,
    "ER": 25,
    "H": 52,
    "BB": 13,
    "SO": 50,
    "HR": 6,
    "ERA": 4.166666666666667,
    "WHIP": 1.2037037037037037,
    "K9": 8.333333333333334,
    "HR9": 1.0,
    "games_pitched": 10,
    "quality_starts": 5,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "702070",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 90,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 90,
    "pitch_usage": 0.0,
    "release_speed": 86.89238376821358,
    "release_spin_rate": 2216.5960244296075,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 90,
      "pitch_usage": 0.0,
      "release_speed": 86.89238376821358,
      "release_spin_rate": 2216.5960244296075,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 86.8924,
    "release_spin_rate": 2216.596,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.1588,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -1.1346,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 13.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7222,
    "prior_weight": 0.2778
  },
  "role": "pitcher",
  "player_id": "702070",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 13,
  "reference_playing_time": 5.667,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 28.1,
        "ER": 7.0,
        "R": 8.0,
        "H": 19.0,
        "BB": 3.0,
        "SO": 28.0,
        "HR": 3.0,
        "BF": 108.0,
        "Pitches": 467.0
      },
      "per_game": {
        "IP": 5.2,
        "ER": 1.4,
        "R": 1.6,
        "H": 3.8,
        "BB": 0.6,
        "SO": 5.6,
        "HR": 0.6,
        "BF": 21.6,
        "Pitches": 93.4
      },
      "rates": {
        "ERA": 2.2235,
        "WHIP": 0.7765,
        "ER_per_IP": 0.24706,
        "H_per_IP": 0.67059,
        "BB_per_IP": 0.10588,
        "SO_per_IP": 0.98824,
        "HR_per_IP": 0.10588
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 54.0,
        "ER": 25.0,
        "R": 29.0,
        "H": 52.0,
        "BB": 13.0,
        "SO": 50.0,
        "HR": 6.0,
        "BF": 228.0,
        "Pitches": 899.0
      },
      "per_game": {
        "IP": 5.1,
        "ER": 2.5,
        "R": 2.9,
        "H": 5.2,
        "BB": 1.3,
        "SO": 5.0,
        "HR": 0.6,
        "BF": 22.8,
        "Pitches": 89.9
      },
      "rates": {
        "ERA": 4.1667,
        "WHIP": 1.2037,
        "ER_per_IP": 0.46296,
        "H_per_IP": 0.96296,
        "BB_per_IP": 0.24074,
        "SO_per_IP": 0.92593,
        "HR_per_IP": 0.11111
      }
    },
    "season": {
      "games": 13,
      "totals": {
        "IP": 70.0,
        "ER": 32.0,
        "R": 36.0,
        "H": 68.0,
        "BB": 17.0,
        "SO": 64.0,
        "HR": 8.0,
        "BF": 295.0,
        "Pitches": 1149.0
      },
      "per_game": {
        "IP": 5.1,
        "ER": 2.4615,
        "R": 2.7692,
        "H": 5.2308,
        "BB": 1.3077,
        "SO": 4.9231,
        "HR": 0.6154,
        "BF": 22.6923,
        "Pitches": 88.3846
      },
      "rates": {
        "ERA": 4.1143,
        "WHIP": 1.2143,
        "ER_per_IP": 0.45714,
        "H_per_IP": 0.97143,
        "BB_per_IP": 0.24286,
        "SO_per_IP": 0.91429,
        "HR_per_IP": 0.11429
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 5.2,
    "predicted_ER": 2.228,
    "predicted_H": 4.827,
    "predicted_BB": 1.28,
    "predicted_SO": 5.245,
    "predicted_HR": 0.662,
    "predicted_ERA": 3.6225,
    "predicted_WHIP": 1.1035
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.4674,
  "form_weight": 0.5326,
  "form_reliability": 0.7222,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 13.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7222,
    "prior_weight": 0.2778
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 5.2,
      "form": 5.2,
      "final": 5.2,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 5.0,
      "form": 2.228,
      "final": 3.5236,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 7.0,
      "form": 4.827,
      "final": 5.8426,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 2.0,
      "form": 1.28,
      "final": 1.6165,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 3.0,
      "form": 5.245,
      "final": 4.1958,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.662,
      "final": 0.3526,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.6225,
      "final": 3.6225,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1035,
      "final": 1.1035,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherAlex Lange
RoleMiddle Reliever
Projection Source-
Savant Quality Score-0.1862
ESPN Rank259
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H1
Pre BB0
Pre SO1
Season ERA4.0099
Season WHIP1.3960
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "KC",
    "games": 83,
    "wins": 31,
    "losses": 52,
    "win_pct": 0.3735,
    "runs_scored": 323.0,
    "runs_allowed": 391.0,
    "run_differential": -68.0,
    "run_differential_per_game": -0.8193,
    "avg_runs_scored": 3.8916,
    "avg_runs_allowed": 4.7108,
    "offense_index": 0.8634,
    "defense_index": 0.9568,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.9,
      "avg_runs_allowed": 5.1,
      "run_differential": -2.0
    },
    "available": true,
    "quality_score": -0.2425
  },
  "opponent": {
    "team": "STL",
    "games": 81,
    "wins": 46,
    "losses": 35,
    "win_pct": 0.5679,
    "runs_scored": 352.0,
    "runs_allowed": 328.0,
    "run_differential": 24.0,
    "run_differential_per_game": 0.2963,
    "avg_runs_scored": 4.3457,
    "avg_runs_allowed": 4.0494,
    "offense_index": 0.9641,
    "defense_index": 1.1131,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 3.8,
      "run_differential": 15.0
    },
    "available": true,
    "quality_score": 0.1289
  },
  "edges": {
    "quality_edge": -0.3714,
    "offense_edge": -0.1366,
    "opponent_offense_edge": -0.0359,
    "defense_strength": -0.0432,
    "opponent_defense_weakness": -0.1131,
    "recent_win_pct_edge": -0.2
  },
  "player_factors": {
    "ip": 0.9853,
    "run_prevention": 1.0171,
    "strikeout": 0.9917
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "656638",
    "profile": {
      "available": true,
      "pitcher_id": "656638",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 99.0,
        "k_percent": 24.0,
        "bb_percent": 13.0,
        "woba": 0.326,
        "xwoba": 0.335,
        "sweet_spot_percent": 37.5,
        "barrel_batted_rate": 13.6,
        "hard_hit_percent": 43.2,
        "avg_best_speed": 80.7937,
        "avg_hyper_speed": 95.1894,
        "whiff_percent": 29.4,
        "swing_percent": 45.3
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.7352,
        "command_and_miss": 0.0914,
        "regression_edge": -0.2571,
        "xwoba_edge": -0.5714,
        "barrel_edge": -1.4,
        "hard_hit_edge": -0.7,
        "whiff_edge": 0.5286,
        "bb_edge": -0.95,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "656638",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": -0.1862,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0158,
      "strikeout_factor": 1.0134,
      "walk_factor": 1.0342,
      "homer_factor": 1.0707,
      "woba_minus_xwoba": -0.009,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "656638",
        "espn_id": 40976,
        "player_name": "Alex Lange",
        "team": "KC",
        "role": "pitcher",
        "espn_rank": 259,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 259,
          "gp_value": 31.0,
          "gp_rank": 46,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 4.0099,
          "era_rank": null,
          "w_value": 0.0,
          "w_rank": 404,
          "l_value": 4.0,
          "l_rank": 62,
          "sv_value": 4.0,
          "sv_rank": 30,
          "hld_value": 1.0,
          "hld_rank": 198,
          "ip_value": 33.2,
          "ip_rank": 200,
          "h_value": 28.0,
          "h_rank": 233,
          "er_value": 15.0,
          "er_rank": 209,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 19.0,
          "bb_rank": 131,
          "k_value": 35.0,
          "k_rank": 199,
          "k_per_9_value": 9.356436,
          "k_per_9_rank": 26,
          "whip_value": 1.396,
          "whip_rank": null,
          "war_value": 0.24,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 1.0071,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 1.0071,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0154,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0318,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.006,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.2,
    "ER": 2,
    "H": 8,
    "BB": 6,
    "SO": 12,
    "HR": 0,
    "ERA": 1.862068965517241,
    "WHIP": 1.4482758620689653,
    "K9": 11.172413793103447,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-17T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "656638",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.686,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5721,
    "prior_weight": 0.4279
  },
  "role": "pitcher",
  "player_id": "656638",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 31,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.2,
        "ER": 2.0,
        "R": 3.0,
        "H": 4.0,
        "BB": 4.0,
        "SO": 7.0,
        "HR": 0.0,
        "BF": 27.0,
        "Pitches": 129.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4,
        "R": 0.6,
        "H": 0.8,
        "BB": 0.8,
        "SO": 1.4,
        "HR": 0.0,
        "BF": 5.4,
        "Pitches": 25.8
      },
      "rates": {
        "ERA": 3.1765,
        "WHIP": 1.4118,
        "ER_per_IP": 0.35294,
        "H_per_IP": 0.70588,
        "BB_per_IP": 0.70588,
        "SO_per_IP": 1.23529,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.2,
        "ER": 2.0,
        "R": 3.0,
        "H": 8.0,
        "BB": 6.0,
        "SO": 12.0,
        "HR": 0.0,
        "BF": 45.0,
        "Pitches": 207.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.3,
        "H": 0.8,
        "BB": 0.6,
        "SO": 1.2,
        "HR": 0.0,
        "BF": 4.5,
        "Pitches": 20.7
      },
      "rates": {
        "ERA": 1.8621,
        "WHIP": 1.4483,
        "ER_per_IP": 0.2069,
        "H_per_IP": 0.82759,
        "BB_per_IP": 0.62069,
        "SO_per_IP": 1.24138,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 31,
      "totals": {
        "IP": 33.2,
        "ER": 15.0,
        "R": 17.0,
        "H": 28.0,
        "BB": 19.0,
        "SO": 35.0,
        "HR": 2.0,
        "BF": 146.0,
        "Pitches": 623.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.4839,
        "R": 0.5484,
        "H": 0.9032,
        "BB": 0.6129,
        "SO": 1.129,
        "HR": 0.0645,
        "BF": 4.7097,
        "Pitches": 20.0968
      },
      "rates": {
        "ERA": 4.0099,
        "WHIP": 1.396,
        "ER_per_IP": 0.44554,
        "H_per_IP": 0.83168,
        "BB_per_IP": 0.56436,
        "SO_per_IP": 1.0396,
        "HR_per_IP": 0.05941
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.398,
    "predicted_H": 0.859,
    "predicted_BB": 0.526,
    "predicted_SO": 1.087,
    "predicted_HR": 0.069,
    "predicted_ERA": 3.5785,
    "predicted_WHIP": 1.3854
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5308,
  "form_weight": 0.4692,
  "form_reliability": 0.5721,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.686,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5721,
    "prior_weight": 0.4279
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.398,
      "final": 0.1867,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.859,
      "final": 0.9338,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.526,
      "final": 0.2468,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 1.0,
      "form": 1.087,
      "final": 1.0408,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.069,
      "final": 0.0324,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.5785,
      "final": 3.5785,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.3854,
      "final": 1.3854,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherDaniel Lynch IV
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.2466
ESPN Rank147
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H1
Pre BB2
Pre SO0
Season ERA2.6129
Season WHIP1
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "KC",
    "games": 83,
    "wins": 31,
    "losses": 52,
    "win_pct": 0.3735,
    "runs_scored": 323.0,
    "runs_allowed": 391.0,
    "run_differential": -68.0,
    "run_differential_per_game": -0.8193,
    "avg_runs_scored": 3.8916,
    "avg_runs_allowed": 4.7108,
    "offense_index": 0.8634,
    "defense_index": 0.9568,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.9,
      "avg_runs_allowed": 5.1,
      "run_differential": -2.0
    },
    "available": true,
    "quality_score": -0.2425
  },
  "opponent": {
    "team": "STL",
    "games": 81,
    "wins": 46,
    "losses": 35,
    "win_pct": 0.5679,
    "runs_scored": 352.0,
    "runs_allowed": 328.0,
    "run_differential": 24.0,
    "run_differential_per_game": 0.2963,
    "avg_runs_scored": 4.3457,
    "avg_runs_allowed": 4.0494,
    "offense_index": 0.9641,
    "defense_index": 1.1131,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 3.8,
      "run_differential": 15.0
    },
    "available": true,
    "quality_score": 0.1289
  },
  "edges": {
    "quality_edge": -0.3714,
    "offense_edge": -0.1366,
    "opponent_offense_edge": -0.0359,
    "defense_strength": -0.0432,
    "opponent_defense_weakness": -0.1131,
    "recent_win_pct_edge": -0.2
  },
  "player_factors": {
    "ip": 0.9853,
    "run_prevention": 1.0171,
    "strikeout": 0.9917
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "663738",
    "profile": {
      "available": true,
      "pitcher_id": "663738",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 85.0,
        "k_percent": 23.6,
        "bb_percent": 8.7,
        "woba": 0.257,
        "xwoba": 0.276,
        "sweet_spot_percent": 31.0,
        "barrel_batted_rate": 6.0,
        "hard_hit_percent": 34.5,
        "avg_best_speed": 75.3614,
        "avg_hyper_speed": 93.6212,
        "whiff_percent": 31.9,
        "swing_percent": 46.9
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.8871,
        "command_and_miss": 0.4057,
        "regression_edge": -0.5429,
        "xwoba_edge": 1.1143,
        "barrel_edge": 0.2889,
        "hard_hit_edge": 0.5429,
        "whiff_edge": 0.8857,
        "bb_edge": 0.125,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "663738",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.2466,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.979,
      "strikeout_factor": 1.0188,
      "walk_factor": 0.9955,
      "homer_factor": 0.9648,
      "woba_minus_xwoba": -0.019,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "663738",
        "espn_id": 41227,
        "player_name": "Daniel Lynch IV",
        "team": "KC",
        "role": "pitcher",
        "espn_rank": 147,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 147,
          "gp_value": 31.0,
          "gp_rank": 46,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.6129,
          "era_rank": null,
          "w_value": 2.0,
          "w_rank": 180,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 1.0,
          "sv_rank": 86,
          "hld_value": 9.0,
          "hld_rank": 31,
          "ip_value": 31.0,
          "ip_rank": 235,
          "h_value": 20.0,
          "h_rank": 330,
          "er_value": 9.0,
          "er_rank": 360,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 11.0,
          "bb_rank": 272,
          "k_value": 30.0,
          "k_rank": 253,
          "k_per_9_value": 8.709678,
          "k_per_9_rank": 29,
          "whip_value": 1.0,
          "whip_rank": null,
          "war_value": 0.67,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9906,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9906,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.998,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9842,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0085,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.1,
    "ER": 5,
    "H": 7,
    "BB": 4,
    "SO": 4,
    "HR": 1,
    "ERA": 4.821428571428572,
    "WHIP": 1.1785714285714288,
    "K9": 3.8571428571428577,
    "HR9": 0.9642857142857144,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-16T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "663738",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.156,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5518,
    "prior_weight": 0.4482
  },
  "role": "pitcher",
  "player_id": "663738",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 31,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.2,
        "ER": 4.0,
        "R": 4.0,
        "H": 3.0,
        "BB": 3.0,
        "SO": 1.0,
        "HR": 1.0,
        "BF": 20.0,
        "Pitches": 80.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.8,
        "R": 0.8,
        "H": 0.6,
        "BB": 0.6,
        "SO": 0.2,
        "HR": 0.2,
        "BF": 4.0,
        "Pitches": 16.0
      },
      "rates": {
        "ERA": 7.7143,
        "WHIP": 1.2857,
        "ER_per_IP": 0.85714,
        "H_per_IP": 0.64286,
        "BB_per_IP": 0.64286,
        "SO_per_IP": 0.21429,
        "HR_per_IP": 0.21429
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.1,
        "ER": 5.0,
        "R": 5.0,
        "H": 7.0,
        "BB": 4.0,
        "SO": 4.0,
        "HR": 1.0,
        "BF": 39.0,
        "Pitches": 145.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.5,
        "R": 0.5,
        "H": 0.7,
        "BB": 0.4,
        "SO": 0.4,
        "HR": 0.1,
        "BF": 3.9,
        "Pitches": 14.5
      },
      "rates": {
        "ERA": 4.8214,
        "WHIP": 1.1786,
        "ER_per_IP": 0.53571,
        "H_per_IP": 0.75,
        "BB_per_IP": 0.42857,
        "SO_per_IP": 0.42857,
        "HR_per_IP": 0.10714
      }
    },
    "season": {
      "games": 31,
      "totals": {
        "IP": 31.0,
        "ER": 9.0,
        "R": 12.0,
        "H": 20.0,
        "BB": 11.0,
        "SO": 30.0,
        "HR": 2.0,
        "BF": 127.0,
        "Pitches": 488.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2903,
        "R": 0.3871,
        "H": 0.6452,
        "BB": 0.3548,
        "SO": 0.9677,
        "HR": 0.0645,
        "BF": 4.0968,
        "Pitches": 15.7419
      },
      "rates": {
        "ERA": 2.6129,
        "WHIP": 1.0,
        "ER_per_IP": 0.29032,
        "H_per_IP": 0.64516,
        "BB_per_IP": 0.35484,
        "SO_per_IP": 0.96774,
        "HR_per_IP": 0.06452
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.573,
    "predicted_H": 0.812,
    "predicted_BB": 0.444,
    "predicted_SO": 0.663,
    "predicted_HR": 0.146,
    "predicted_ERA": 5.1556,
    "predicted_WHIP": 1.2566
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5394,
  "form_weight": 0.4606,
  "form_reliability": 0.5518,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.156,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5518,
    "prior_weight": 0.4482
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.573,
      "final": 0.2639,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.812,
      "final": 0.9134,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 2.0,
      "form": 0.444,
      "final": 1.2833,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 0.663,
      "final": 0.3054,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.146,
      "final": 0.0673,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 5.1556,
      "final": 5.1556,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2566,
      "final": 1.2566,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherLucas Erceg
RoleMiddle Reliever
Projection Source-
Savant Quality Score-0.0695
ESPN Rank619
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H0
Pre BB0
Pre SO0
Season ERA4.6098
Season WHIP1.6829
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "KC",
    "games": 83,
    "wins": 31,
    "losses": 52,
    "win_pct": 0.3735,
    "runs_scored": 323.0,
    "runs_allowed": 391.0,
    "run_differential": -68.0,
    "run_differential_per_game": -0.8193,
    "avg_runs_scored": 3.8916,
    "avg_runs_allowed": 4.7108,
    "offense_index": 0.8634,
    "defense_index": 0.9568,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.9,
      "avg_runs_allowed": 5.1,
      "run_differential": -2.0
    },
    "available": true,
    "quality_score": -0.2425
  },
  "opponent": {
    "team": "STL",
    "games": 81,
    "wins": 46,
    "losses": 35,
    "win_pct": 0.5679,
    "runs_scored": 352.0,
    "runs_allowed": 328.0,
    "run_differential": 24.0,
    "run_differential_per_game": 0.2963,
    "avg_runs_scored": 4.3457,
    "avg_runs_allowed": 4.0494,
    "offense_index": 0.9641,
    "defense_index": 1.1131,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 3.8,
      "run_differential": 15.0
    },
    "available": true,
    "quality_score": 0.1289
  },
  "edges": {
    "quality_edge": -0.3714,
    "offense_edge": -0.1366,
    "opponent_offense_edge": -0.0359,
    "defense_strength": -0.0432,
    "opponent_defense_weakness": -0.1131,
    "recent_win_pct_edge": -0.2
  },
  "player_factors": {
    "ip": 0.9853,
    "run_prevention": 1.0171,
    "strikeout": 0.9917
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "668674",
    "profile": {
      "available": true,
      "pitcher_id": "668674",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 93.0,
        "k_percent": 18.1,
        "bb_percent": 15.0,
        "woba": 0.38,
        "xwoba": 0.32,
        "sweet_spot_percent": 31.0,
        "barrel_batted_rate": 6.0,
        "hard_hit_percent": 39.3,
        "avg_best_speed": 74.1204,
        "avg_hyper_speed": 94.2061,
        "whiff_percent": 21.5,
        "swing_percent": 46.3
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.2185,
        "command_and_miss": -0.7829,
        "regression_edge": 1.7143,
        "xwoba_edge": -0.1429,
        "barrel_edge": 0.2889,
        "hard_hit_edge": -0.1429,
        "whiff_edge": -0.6,
        "bb_edge": -1.45,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "668674",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": -0.0695,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0059,
      "strikeout_factor": 0.9779,
      "walk_factor": 1.0522,
      "homer_factor": 0.9941,
      "woba_minus_xwoba": 0.06,
      "regression_flag": "positive_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "668674",
        "espn_id": 36618,
        "player_name": "Lucas Erceg",
        "team": "KC",
        "role": "pitcher",
        "espn_rank": 619,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 619,
          "gp_value": 29.0,
          "gp_rank": 80,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 5.5975,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 3.0,
          "l_rank": 110,
          "sv_value": 12.0,
          "sv_rank": 11,
          "hld_value": 2.0,
          "hld_rank": 165,
          "ip_value": 27.1,
          "ip_rank": 293,
          "h_value": 32.0,
          "h_rank": 193,
          "er_value": 17.0,
          "er_rank": 186,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 19.0,
          "bb_rank": 131,
          "k_value": 23.0,
          "k_rank": 321,
          "k_per_9_value": 7.5731707,
          "k_per_9_rank": 29,
          "whip_value": 1.8658,
          "whip_rank": null,
          "war_value": -0.39,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 1.0027,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 1.0027,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0235,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9973,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 0.9901,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.0,
    "ER": 7,
    "H": 12,
    "BB": 7,
    "SO": 6,
    "HR": 1,
    "ERA": 7.0,
    "WHIP": 2.111111111111111,
    "K9": 6.0,
    "HR9": 1.0,
    "games_pitched": 9,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": true
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-17T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "668674",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.428,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5205,
    "prior_weight": 0.4795
  },
  "role": "pitcher",
  "player_id": "668674",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 28,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.0,
        "ER": 1.0,
        "R": 1.0,
        "H": 3.0,
        "BB": 4.0,
        "SO": 3.0,
        "HR": 0.0,
        "BF": 23.0,
        "Pitches": 100.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.6,
        "BB": 0.8,
        "SO": 0.6,
        "HR": 0.0,
        "BF": 4.6,
        "Pitches": 20.0
      },
      "rates": {
        "ERA": 1.8,
        "WHIP": 1.4,
        "ER_per_IP": 0.2,
        "H_per_IP": 0.6,
        "BB_per_IP": 0.8,
        "SO_per_IP": 0.6,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.0,
        "ER": 7.0,
        "R": 8.0,
        "H": 14.0,
        "BB": 7.0,
        "SO": 8.0,
        "HR": 1.0,
        "BF": 51.0,
        "Pitches": 204.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.7,
        "R": 0.8,
        "H": 1.4,
        "BB": 0.7,
        "SO": 0.8,
        "HR": 0.1,
        "BF": 5.1,
        "Pitches": 20.4
      },
      "rates": {
        "ERA": 6.3,
        "WHIP": 2.1,
        "ER_per_IP": 0.7,
        "H_per_IP": 1.4,
        "BB_per_IP": 0.7,
        "SO_per_IP": 0.8,
        "HR_per_IP": 0.1
      }
    },
    "season": {
      "games": 28,
      "totals": {
        "IP": 27.1,
        "ER": 14.0,
        "R": 16.0,
        "H": 27.0,
        "BB": 19.0,
        "SO": 23.0,
        "HR": 1.0,
        "BF": 122.0,
        "Pitches": 506.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.5,
        "R": 0.5714,
        "H": 0.9643,
        "BB": 0.6786,
        "SO": 0.8214,
        "HR": 0.0357,
        "BF": 4.3571,
        "Pitches": 18.0714
      },
      "rates": {
        "ERA": 4.6098,
        "WHIP": 1.6829,
        "ER_per_IP": 0.5122,
        "H_per_IP": 0.9878,
        "BB_per_IP": 0.69512,
        "SO_per_IP": 0.84146,
        "HR_per_IP": 0.03659
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.468,
    "predicted_H": 0.965,
    "predicted_BB": 0.561,
    "predicted_SO": 0.823,
    "predicted_HR": 0.092,
    "predicted_ERA": 4.2109,
    "predicted_WHIP": 1.5269
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5526,
  "form_weight": 0.4474,
  "form_reliability": 0.5205,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.428,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5205,
    "prior_weight": 0.4795
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.468,
      "final": 0.2094,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.965,
      "final": 0.4318,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.561,
      "final": 0.251,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 0.823,
      "final": 0.3682,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.092,
      "final": 0.0412,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.2109,
      "final": 4.2109,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.5269,
      "final": 1.5269,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherMatt Strahm
RoleMiddle Reliever
Projection Source-
Savant Quality Score-0.0728
ESPN Rank602
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP0.1000
Pre ER0
Pre H0
Pre BB0
Pre SO0
Season ERA5.7273
Season WHIP1.3182
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "KC",
    "games": 83,
    "wins": 31,
    "losses": 52,
    "win_pct": 0.3735,
    "runs_scored": 323.0,
    "runs_allowed": 391.0,
    "run_differential": -68.0,
    "run_differential_per_game": -0.8193,
    "avg_runs_scored": 3.8916,
    "avg_runs_allowed": 4.7108,
    "offense_index": 0.8634,
    "defense_index": 0.9568,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.9,
      "avg_runs_allowed": 5.1,
      "run_differential": -2.0
    },
    "available": true,
    "quality_score": -0.2425
  },
  "opponent": {
    "team": "STL",
    "games": 81,
    "wins": 46,
    "losses": 35,
    "win_pct": 0.5679,
    "runs_scored": 352.0,
    "runs_allowed": 328.0,
    "run_differential": 24.0,
    "run_differential_per_game": 0.2963,
    "avg_runs_scored": 4.3457,
    "avg_runs_allowed": 4.0494,
    "offense_index": 0.9641,
    "defense_index": 1.1131,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 3.8,
      "run_differential": 15.0
    },
    "available": true,
    "quality_score": 0.1289
  },
  "edges": {
    "quality_edge": -0.3714,
    "offense_edge": -0.1366,
    "opponent_offense_edge": -0.0359,
    "defense_strength": -0.0432,
    "opponent_defense_weakness": -0.1131,
    "recent_win_pct_edge": -0.2
  },
  "player_factors": {
    "ip": 0.9853,
    "run_prevention": 1.0171,
    "strikeout": 0.9917
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "621381",
    "profile": {
      "available": true,
      "pitcher_id": "621381",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 71.0,
        "k_percent": 18.8,
        "bb_percent": 7.3,
        "woba": 0.387,
        "xwoba": 0.313,
        "sweet_spot_percent": 29.0,
        "barrel_batted_rate": 10.1,
        "hard_hit_percent": 43.5,
        "avg_best_speed": 81.1489,
        "avg_hyper_speed": 93.8897,
        "whiff_percent": 23.2,
        "swing_percent": 49.1
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.5219,
        "command_and_miss": -0.2679,
        "regression_edge": 2.0,
        "xwoba_edge": 0.0571,
        "barrel_edge": -0.6222,
        "hard_hit_edge": -0.7429,
        "whiff_edge": -0.3571,
        "bb_edge": 0.475,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "621381",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": -0.0728,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0062,
      "strikeout_factor": 0.9841,
      "walk_factor": 0.9829,
      "homer_factor": 1.035,
      "woba_minus_xwoba": 0.074,
      "regression_flag": "positive_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "621381",
        "espn_id": 34862,
        "player_name": "Matt Strahm",
        "team": "KC",
        "role": "pitcher",
        "espn_rank": 602,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 602,
          "gp_value": 24.0,
          "gp_rank": 139,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 5.7272,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 9.0,
          "hld_rank": 31,
          "ip_value": 22.0,
          "ip_rank": 355,
          "h_value": 22.0,
          "h_rank": 299,
          "er_value": 14.0,
          "er_rank": 225,
          "hr_value": 8.0,
          "hr_rank": 79,
          "bb_value": 7.0,
          "bb_rank": 394,
          "k_value": 18.0,
          "k_rank": 375,
          "k_per_9_value": 7.3636365,
          "k_per_9_rank": 28,
          "whip_value": 1.3181,
          "whip_rank": null,
          "war_value": -0.34,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 1.0,
        "factor": 1.0028,
        "adjusted": 1
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 1.0028,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9923,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0157,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 0.0,
        "factor": 0.9928,
        "adjusted": 0
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 8.1,
    "ER": 9,
    "H": 12,
    "BB": 1,
    "SO": 4,
    "HR": 6,
    "ERA": 9.72,
    "WHIP": 1.5600000000000003,
    "K9": 4.32,
    "HR9": 6.480000000000001,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": true
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-17T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "621381",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.369,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4663,
    "prior_weight": 0.5337
  },
  "role": "pitcher",
  "player_id": "621381",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 24,
  "reference_playing_time": 0.333,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 3.2,
        "ER": 6.0,
        "R": 6.0,
        "H": 7.0,
        "BB": 0.0,
        "SO": 1.0,
        "HR": 4.0,
        "BF": 18.0,
        "Pitches": 65.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 1.2,
        "R": 1.2,
        "H": 1.4,
        "BB": 0.0,
        "SO": 0.2,
        "HR": 0.8,
        "BF": 3.6,
        "Pitches": 13.0
      },
      "rates": {
        "ERA": 14.7273,
        "WHIP": 1.9091,
        "ER_per_IP": 1.63636,
        "H_per_IP": 1.90909,
        "BB_per_IP": 0.0,
        "SO_per_IP": 0.27273,
        "HR_per_IP": 1.09091
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 8.1,
        "ER": 9.0,
        "R": 9.0,
        "H": 12.0,
        "BB": 1.0,
        "SO": 4.0,
        "HR": 6.0,
        "BF": 38.0,
        "Pitches": 135.0
      },
      "per_game": {
        "IP": 0.2,
        "ER": 0.9,
        "R": 0.9,
        "H": 1.2,
        "BB": 0.1,
        "SO": 0.4,
        "HR": 0.6,
        "BF": 3.8,
        "Pitches": 13.5
      },
      "rates": {
        "ERA": 9.72,
        "WHIP": 1.56,
        "ER_per_IP": 1.08,
        "H_per_IP": 1.44,
        "BB_per_IP": 0.12,
        "SO_per_IP": 0.48,
        "HR_per_IP": 0.72
      }
    },
    "season": {
      "games": 24,
      "totals": {
        "IP": 22.0,
        "ER": 14.0,
        "R": 14.0,
        "H": 22.0,
        "BB": 7.0,
        "SO": 18.0,
        "HR": 8.0,
        "BF": 96.0,
        "Pitches": 369.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.5833,
        "R": 0.5833,
        "H": 0.9167,
        "BB": 0.2917,
        "SO": 0.75,
        "HR": 0.3333,
        "BF": 4.0,
        "Pitches": 15.375
      },
      "rates": {
        "ERA": 5.7273,
        "WHIP": 1.3182,
        "ER_per_IP": 0.63636,
        "H_per_IP": 1.0,
        "BB_per_IP": 0.31818,
        "SO_per_IP": 0.81818,
        "HR_per_IP": 0.36364
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 0.2,
    "predicted_ER": 0.44,
    "predicted_H": 0.649,
    "predicted_BB": 0.126,
    "predicted_SO": 0.37,
    "predicted_HR": 0.238,
    "predicted_ERA": 7.6168,
    "predicted_WHIP": 1.4918
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5755,
  "form_weight": 0.4245,
  "form_reliability": 0.4663,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.369,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4663,
    "prior_weight": 0.5337
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 0.1,
      "form": 0.2,
      "final": 0.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.44,
      "final": 0.1868,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.649,
      "final": 0.2755,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.126,
      "final": 0.0535,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 0.37,
      "final": 0.1571,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.238,
      "final": 0.101,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 7.6168,
      "final": 7.6168,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.4918,
      "final": 1.4918,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherJohn Schreiber
RoleMiddle Reliever
Projection Source-
Savant Quality Score-0.1544
ESPN Rank131
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP0
Pre ER0
Pre H0
Pre BB0
Pre SO0
Season ERA2.7303
Season WHIP1.1798
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "KC",
    "games": 83,
    "wins": 31,
    "losses": 52,
    "win_pct": 0.3735,
    "runs_scored": 323.0,
    "runs_allowed": 391.0,
    "run_differential": -68.0,
    "run_differential_per_game": -0.8193,
    "avg_runs_scored": 3.8916,
    "avg_runs_allowed": 4.7108,
    "offense_index": 0.8634,
    "defense_index": 0.9568,
    "current_streak": "W1",
    "recent": {
      "games": 10,
      "wins": 4,
      "losses": 6,
      "win_pct": 0.4,
      "avg_runs_scored": 4.9,
      "avg_runs_allowed": 5.1,
      "run_differential": -2.0
    },
    "available": true,
    "quality_score": -0.2425
  },
  "opponent": {
    "team": "STL",
    "games": 81,
    "wins": 46,
    "losses": 35,
    "win_pct": 0.5679,
    "runs_scored": 352.0,
    "runs_allowed": 328.0,
    "run_differential": 24.0,
    "run_differential_per_game": 0.2963,
    "avg_runs_scored": 4.3457,
    "avg_runs_allowed": 4.0494,
    "offense_index": 0.9641,
    "defense_index": 1.1131,
    "current_streak": "L1",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 5.3,
      "avg_runs_allowed": 3.8,
      "run_differential": 15.0
    },
    "available": true,
    "quality_score": 0.1289
  },
  "edges": {
    "quality_edge": -0.3714,
    "offense_edge": -0.1366,
    "opponent_offense_edge": -0.0359,
    "defense_strength": -0.0432,
    "opponent_defense_weakness": -0.1131,
    "recent_win_pct_edge": -0.2
  },
  "player_factors": {
    "ip": 0.9853,
    "run_prevention": 1.0171,
    "strikeout": 0.9917
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "670167",
    "profile": {
      "available": true,
      "pitcher_id": "670167",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 85.0,
        "k_percent": 17.6,
        "bb_percent": 9.2,
        "woba": 0.308,
        "xwoba": 0.329,
        "sweet_spot_percent": 39.5,
        "barrel_batted_rate": 7.1,
        "hard_hit_percent": 38.4,
        "avg_best_speed": 78.3889,
        "avg_hyper_speed": 94.0805,
        "whiff_percent": 20.0,
        "swing_percent": 44.2
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.227,
        "command_and_miss": -0.6,
        "regression_edge": -0.6,
        "xwoba_edge": -0.4,
        "barrel_edge": 0.0444,
        "hard_hit_edge": -0.0143,
        "whiff_edge": -0.8143,
        "bb_edge": 0.0,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "670167",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": -0.1544,
      "sample_weight": 0.45,
      "run_prevention_factor": 1.0131,
      "strikeout_factor": 0.9727,
      "walk_factor": 1.0,
      "homer_factor": 1.0041,
      "woba_minus_xwoba": -0.021,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "670167",
        "espn_id": 39949,
        "player_name": "John Schreiber",
        "team": "KC",
        "role": "pitcher",
        "espn_rank": 131,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 131,
          "gp_value": 32.0,
          "gp_rank": 31,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.7303,
          "era_rank": null,
          "w_value": 0.0,
          "w_rank": 404,
          "l_value": 3.0,
          "l_rank": 110,
          "sv_value": 1.0,
          "sv_rank": 86,
          "hld_value": 4.0,
          "hld_rank": 121,
          "ip_value": 29.2,
          "ip_rank": 259,
          "h_value": 24.0,
          "h_rank": 276,
          "er_value": 9.0,
          "er_rank": 360,
          "hr_value": 5.0,
          "hr_rank": 157,
          "bb_value": 11.0,
          "bb_rank": 272,
          "k_value": 21.0,
          "k_rank": 345,
          "k_per_9_value": 6.370786,
          "k_per_9_rank": 35,
          "whip_value": 1.1797,
          "whip_rank": null,
          "war_value": 0.76,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 1.0059,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 1.0059,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0018,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 0.9877,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.1,
    "ER": 2,
    "H": 5,
    "BB": 1,
    "SO": 9,
    "HR": 2,
    "ERA": 1.9285714285714284,
    "WHIP": 0.6428571428571428,
    "K9": 8.678571428571429,
    "HR9": 1.9285714285714284,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-17T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "670167",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.891,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5409,
    "prior_weight": 0.4591
  },
  "role": "pitcher",
  "player_id": "670167",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 32,
  "reference_playing_time": 0.1,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.1,
        "ER": 1.0,
        "R": 1.0,
        "H": 3.0,
        "BB": 0.0,
        "SO": 5.0,
        "HR": 1.0,
        "BF": 18.0,
        "Pitches": 78.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.6,
        "BB": 0.0,
        "SO": 1.0,
        "HR": 0.2,
        "BF": 3.6,
        "Pitches": 15.6
      },
      "rates": {
        "ERA": 1.6875,
        "WHIP": 0.5625,
        "ER_per_IP": 0.1875,
        "H_per_IP": 0.5625,
        "BB_per_IP": 0.0,
        "SO_per_IP": 0.9375,
        "HR_per_IP": 0.1875
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.1,
        "ER": 2.0,
        "R": 3.0,
        "H": 5.0,
        "BB": 1.0,
        "SO": 9.0,
        "HR": 2.0,
        "BF": 31.0,
        "Pitches": 126.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.3,
        "H": 0.5,
        "BB": 0.1,
        "SO": 0.9,
        "HR": 0.2,
        "BF": 3.1,
        "Pitches": 12.6
      },
      "rates": {
        "ERA": 1.9286,
        "WHIP": 0.6429,
        "ER_per_IP": 0.21429,
        "H_per_IP": 0.53571,
        "BB_per_IP": 0.10714,
        "SO_per_IP": 0.96429,
        "HR_per_IP": 0.21429
      }
    },
    "season": {
      "games": 32,
      "totals": {
        "IP": 29.2,
        "ER": 9.0,
        "R": 10.0,
        "H": 24.0,
        "BB": 11.0,
        "SO": 21.0,
        "HR": 5.0,
        "BF": 119.0,
        "Pitches": 475.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2812,
        "R": 0.3125,
        "H": 0.75,
        "BB": 0.3438,
        "SO": 0.6562,
        "HR": 0.1562,
        "BF": 3.7188,
        "Pitches": 14.8438
      },
      "rates": {
        "ERA": 2.7303,
        "WHIP": 1.1798,
        "ER_per_IP": 0.30337,
        "H_per_IP": 0.80899,
        "BB_per_IP": 0.37079,
        "SO_per_IP": 0.70787,
        "HR_per_IP": 0.16854
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 0.2,
    "predicted_ER": 0.242,
    "predicted_H": 0.536,
    "predicted_BB": 0.158,
    "predicted_SO": 0.637,
    "predicted_HR": 0.119,
    "predicted_ERA": 3.141,
    "predicted_WHIP": 1.0002
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.544,
  "form_weight": 0.456,
  "form_reliability": 0.5409,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 5.891,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5409,
    "prior_weight": 0.4591
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 0.1,
      "form": 0.2,
      "final": 0.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.242,
      "final": 0.1104,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.536,
      "final": 0.2444,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.158,
      "final": 0.0721,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 0.637,
      "final": 0.2905,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.119,
      "final": 0.0543,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.141,
      "final": 3.141,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.0002,
      "final": 1.0002,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherSteven Cruz
RoleReliever
Projection Source-
Savant Quality Score0.0200
ESPN Rank545
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP0
Pre ER1
Pre H2
Pre BB0
Pre SO0
Season ERA-
Season WHIP-
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "available": false,
  "reason": "No team-form snapshot was stored for this pitcher row.",
  "display_fallback": "Use the game-level Team Form Snapshot section for team context."
}
Recent Form Pitching
{
  "available": false,
  "reason": "No pitcher-specific recent-form block was stored for this row.",
  "display_fallback": "Use Player Form Blend windows for last-5, last-10, and season pitcher form."
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "674444",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.038,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4468,
    "prior_weight": 0.5532
  },
  "role": "pitcher",
  "player_id": "674444",
  "report_date": "20260618_S",
  "season_year": 2026,
  "rows_used": 19,
  "reference_playing_time": 0.1,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 6.1,
        "ER": 0.0,
        "R": 0.0,
        "H": 3.0,
        "BB": 1.0,
        "SO": 7.0,
        "HR": 0.0,
        "BF": 22.0,
        "Pitches": 76.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.6,
        "BB": 0.2,
        "SO": 1.4,
        "HR": 0.0,
        "BF": 4.4,
        "Pitches": 15.2
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 0.6316,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.47368,
        "BB_per_IP": 0.15789,
        "SO_per_IP": 1.10526,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 11.2,
        "ER": 5.0,
        "R": 5.0,
        "H": 9.0,
        "BB": 5.0,
        "SO": 14.0,
        "HR": 3.0,
        "BF": 47.0,
        "Pitches": 180.0
      },
      "per_game": {
        "IP": 1.1,
        "ER": 0.5,
        "R": 0.5,
        "H": 0.9,
        "BB": 0.5,
        "SO": 1.4,
        "HR": 0.3,
        "BF": 4.7,
        "Pitches": 18.0
      },
      "rates": {
        "ERA": 3.8571,
        "WHIP": 1.2,
        "ER_per_IP": 0.42857,
        "H_per_IP": 0.77143,
        "BB_per_IP": 0.42857,
        "SO_per_IP": 1.2,
        "HR_per_IP": 0.25714
      }
    },
    "season": {
      "games": 19,
      "totals": {
        "IP": 20.1,
        "ER": 13.0,
        "R": 14.0,
        "H": 18.0,
        "BB": 12.0,
        "SO": 27.0,
        "HR": 7.0,
        "BF": 90.0,
        "Pitches": 352.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.6842,
        "R": 0.7368,
        "H": 0.9474,
        "BB": 0.6316,
        "SO": 1.4211,
        "HR": 0.3684,
        "BF": 4.7368,
        "Pitches": 18.5263
      },
      "rates": {
        "ERA": 5.7541,
        "WHIP": 1.4754,
        "ER_per_IP": 0.63934,
        "H_per_IP": 0.88525,
        "BB_per_IP": 0.59016,
        "SO_per_IP": 1.32787,
        "HR_per_IP": 0.34426
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 0.2,
    "predicted_ER": 0.301,
    "predicted_H": 0.626,
    "predicted_BB": 0.264,
    "predicted_SO": 0.786,
    "predicted_HR": 0.114,
    "predicted_ERA": 3.6113,
    "predicted_WHIP": 1.1862
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5837,
  "form_weight": 0.4163,
  "form_reliability": 0.4468,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.038,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4468,
    "prior_weight": 0.5532
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 0.1,
      "form": 0.2,
      "final": 0.1,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.301,
      "final": 0.1253,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.626,
      "final": 0.2606,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.264,
      "final": 0.1099,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 0.786,
      "final": 0.3272,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.114,
      "final": 0.0475,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.6113,
      "final": 3.6113,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1862,
      "final": 1.1862,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Jac Caglianone (695506) · BATTER · 1B · Team KC
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 197
All-history rows before 20260618: 197
System season_avg: 0.2620
Data season_avg (2026 season-to-date): 0.2319
Diff (system - data): 0.0301
System opponent_avg: 0.5000
System season_avg diverges from 2026 season-to-date by 0.0301. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1760.0000.000Hitting_2B0.1980.000-0.1980.000
predicted_3B0.0150.0000.000Hitting_3B0.0200.000-0.0200.000
predicted_AB3.3684.0003.000Hitting_AB3.5035.0000.497-1.000
predicted_AVG0.2420.2500.333Hitting_AVG0.2320.2000.0180.050
predicted_BB0.3090.0000.000Hitting_BB0.3300.000-0.3300.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.3501.0001.000Hitting_H0.8121.0000.1880.000
predicted_HR0.0600.0000.000Hitting_HR0.1070.000-0.1070.000
predicted_OBP0.3110.2500.333Hitting_OBP0.3080.200-0.0580.050
predicted_R0.4260.0000.000Hitting_R0.4370.000-0.4370.000
predicted_RBI0.1700.0000.000Hitting_RBI0.2490.000-0.2490.000
predicted_SLG0.4110.2500.333Hitting_SLG0.3910.200-0.1410.050
predicted_SO1.1323.0001.000Hitting_SO1.1521.0001.8482.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics2
Worse Metrics9
Biggest Boostpredicted_SO: 1.1320 -> 3.0000 (boost 1.8680, worse)
Biggest Deboostpredicted_R: 0.4260 -> 0.0000 (deboost -0.4260, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend55050predicted_H: 0.3500 -> 0.6023 (boost 0.2523, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.4154 -> 0.2954 (deboost -0.1200, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling81726predicted_H: 0.5760 -> 1.0000 (boost 0.4240, better)predicted_AB: 3.4472 -> 3.0000 (deboost -0.4472, worse)AB rounded to 3 (raw=3.45), rates preserved: AVG=0.167 HR/AB=0.023
5consistency_constraints10101-predicted_R: 0.4335 -> 0.0000 (deboost -0.4335, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.1671 -> 0.3330 (boost 0.1659, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference22011predicted_SO: 1.0000 -> 3.0000 (boost 2.0000, worse)-Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.1671 (deboost -0.1659, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "695506",
  "player_name": "Jac Caglianone",
  "position": "1B",
  "team": "KC",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.176,
        "predicted_3B": 0.015,
        "predicted_AB": 3.368,
        "predicted_AVG": 0.242,
        "predicted_BB": 0.309,
        "predicted_H": 0.35,
        "predicted_HR": 0.06,
        "predicted_OBP": 0.311,
        "predicted_R": 0.426,
        "predicted_RBI": 0.17,
        "predicted_SLG": 0.411,
        "predicted_SO": 1.132
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1802,
        "predicted_3B": 0.0129,
        "predicted_AB": 3.4472,
        "predicted_AVG": 0.2527,
        "predicted_BB": 0.3144,
        "predicted_H": 0.6023,
        "predicted_HBP": 0.087,
        "predicted_HR": 0.0826,
        "predicted_OBP": 0.3247,
        "predicted_R": 0.4687,
        "predicted_RBI": 0.2396,
        "predicted_SLG": 0.4154,
        "predicted_SO": 1.1534
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.176,
          "after": 0.1802,
          "delta": 0.0042,
          "percent_delta": 0.0239,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.015,
          "after": 0.0129,
          "delta": -0.0021,
          "percent_delta": -0.14,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.368,
          "after": 3.4472,
          "delta": 0.0792,
          "percent_delta": 0.0235,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.242,
          "after": 0.2527,
          "delta": 0.0107,
          "percent_delta": 0.0442,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.309,
          "after": 0.3144,
          "delta": 0.0054,
          "percent_delta": 0.0175,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.35,
          "after": 0.6023,
          "delta": 0.2523,
          "percent_delta": 0.7209,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.06,
          "after": 0.0826,
          "delta": 0.0226,
          "percent_delta": 0.3767,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.311,
          "after": 0.3247,
          "delta": 0.0137,
          "percent_delta": 0.0441,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.426,
          "after": 0.4687,
          "delta": 0.0427,
          "percent_delta": 0.1002,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.17,
          "after": 0.2396,
          "delta": 0.0696,
          "percent_delta": 0.4094,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.411,
          "after": 0.4154,
          "delta": 0.0044,
          "percent_delta": 0.0107,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.132,
          "after": 1.1534,
          "delta": 0.0214,
          "percent_delta": 0.0189,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 5,
        "deboosted_metrics": 0,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.35,
          "after": 0.6023,
          "delta": 0.2523,
          "percent_delta": 0.7209,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 68
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1802,
        "predicted_3B": 0.0129,
        "predicted_AB": 3.4472,
        "predicted_AVG": 0.1671,
        "predicted_BB": 0.3092,
        "predicted_H": 0.576,
        "predicted_HBP": 0.087,
        "predicted_HR": 0.0788,
        "predicted_OBP": 0.2357,
        "predicted_R": 0.4335,
        "predicted_RBI": 0.2216,
        "predicted_SLG": 0.2954,
        "predicted_SO": 1.1725
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1802,
          "after": 0.1802,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0129,
          "after": 0.0129,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4472,
          "after": 3.4472,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2527,
          "after": 0.1671,
          "delta": -0.0856,
          "percent_delta": -0.3387,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3144,
          "after": 0.3092,
          "delta": -0.0052,
          "percent_delta": -0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6023,
          "after": 0.576,
          "delta": -0.0263,
          "percent_delta": -0.0437,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.087,
          "after": 0.087,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0826,
          "after": 0.0788,
          "delta": -0.0038,
          "percent_delta": -0.046,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3247,
          "after": 0.2357,
          "delta": -0.089,
          "percent_delta": -0.2741,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4687,
          "after": 0.4335,
          "delta": -0.0352,
          "percent_delta": -0.0751,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2396,
          "after": 0.2216,
          "delta": -0.018,
          "percent_delta": -0.0751,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4154,
          "after": 0.2954,
          "delta": -0.12,
          "percent_delta": -0.2889,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1534,
          "after": 1.1725,
          "delta": 0.0191,
          "percent_delta": 0.0166,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4154,
          "after": 0.2954,
          "delta": -0.12,
          "percent_delta": -0.2889,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.45), rates preserved: AVG=0.167 HR/AB=0.023",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1802,
          "after": 0.0,
          "delta": -0.1802,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0129,
          "after": 0.0,
          "delta": -0.0129,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4472,
          "after": 3.0,
          "delta": -0.4472,
          "percent_delta": -0.1297,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3092,
          "after": 0.0,
          "delta": -0.3092,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.576,
          "after": 1.0,
          "delta": 0.424,
          "percent_delta": 0.7361,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.087,
          "after": 0.0,
          "delta": -0.087,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0788,
          "after": 0.0,
          "delta": -0.0788,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2216,
          "after": 0.0,
          "delta": -0.2216,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1725,
          "after": 1.0,
          "delta": -0.1725,
          "percent_delta": -0.1471,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 1,
        "deboosted_metrics": 7,
        "better_metrics": 2,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.576,
          "after": 1.0,
          "delta": 0.424,
          "percent_delta": 0.7361,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.4472,
          "after": 3.0,
          "delta": -0.4472,
          "percent_delta": -0.1297,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4335,
          "after": 0.0,
          "delta": -0.4335,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4335,
          "after": 0.0,
          "delta": -0.4335,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1671,
          "after": 0.333,
          "delta": 0.1659,
          "percent_delta": 0.9928,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2357,
          "after": 0.333,
          "delta": 0.0973,
          "percent_delta": 0.4128,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2954,
          "after": 0.333,
          "delta": 0.0376,
          "percent_delta": 0.1273,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1671,
          "after": 0.333,
          "delta": 0.1659,
          "percent_delta": 0.9928,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 3.0,
          "delta": 2.0,
          "percent_delta": 2.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.1671,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_FB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2357,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.2954,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1671,
          "delta": -0.1659,
          "percent_delta": -0.4982,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2357,
          "delta": -0.0973,
          "percent_delta": -0.2923,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.2954,
          "delta": -0.0376,
          "percent_delta": -0.1129,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1671,
          "delta": -0.1659,
          "percent_delta": -0.4982,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.176,
        "after": 0.0,
        "delta": -0.176,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.015,
        "after": 0.0,
        "delta": -0.015,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.368,
        "after": 4.0,
        "delta": 0.632,
        "percent_delta": 0.1876,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.242,
        "after": 0.1671,
        "delta": -0.0749,
        "percent_delta": -0.3095,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.309,
        "after": 0.0,
        "delta": -0.309,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.35,
        "after": 1.0,
        "delta": 0.65,
        "percent_delta": 1.8571,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.06,
        "after": 0.0,
        "delta": -0.06,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.311,
        "after": 0.2357,
        "delta": -0.0753,
        "percent_delta": -0.2421,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.426,
        "after": 0.0,
        "delta": -0.426,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.17,
        "after": 0.0,
        "delta": -0.17,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.411,
        "after": 0.2954,
        "delta": -0.1156,
        "percent_delta": -0.2813,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.132,
        "after": 3.0,
        "delta": 1.868,
        "percent_delta": 1.6502,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 2,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 1.132,
        "after": 3.0,
        "delta": 1.868,
        "percent_delta": 1.6502,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_R",
        "before": 0.426,
        "after": 0.0,
        "delta": -0.426,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.176-
predicted_3B0.015-
predicted_AB3.368-
predicted_AVG0.242-
predicted_BB0.309-
predicted_H0.350-
predicted_HR0.060-
predicted_OBP0.311-
predicted_R0.426-
predicted_RBI0.170-
predicted_SLG0.411-
predicted_SO1.132-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1800.004
predicted_3B0.013-0.002
predicted_AB3.4470.079
predicted_AVG0.2530.011
predicted_BB0.3140.005
predicted_H0.6020.252
predicted_HBP0.087-
predicted_HR0.0830.023
predicted_OBP0.3250.014
predicted_R0.4690.043
predicted_RBI0.2400.070
predicted_SLG0.4150.004
predicted_SO1.1530.021
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1800.000
predicted_3B0.0130.000
predicted_AB3.4470.000
predicted_AVG0.167-0.086
predicted_BB0.309-0.005
predicted_H0.576-0.026
predicted_HBP0.0870.000
predicted_HR0.079-0.004
predicted_OBP0.236-0.089
predicted_R0.433-0.035
predicted_RBI0.222-0.018
predicted_SLG0.295-0.120
predicted_SO1.1730.019
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.45), rates preserved: AVG=0.167 HR/AB=0.023

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.180
predicted_3B0.000-0.013
predicted_AB3.000-0.447
predicted_AVG0.3330.166
predicted_BB0.000-0.309
predicted_H1.0000.424
predicted_HR0.000-0.079
predicted_OBP0.3330.097
predicted_R0.000-0.433
predicted_RBI0.000-0.222
predicted_SLG0.3330.038
predicted_SO1.000-0.173
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO3.0002.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 68
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-19.0004.0001.0000.0000.0001.0003.0002.0007.0000.21050.31820.26320.21050.00000.05260.10530.3684
last_100.2010-37.00013.0002.0000.0002.0005.0008.0003.00013.0000.35140.41460.56760.35130.05410.13510.08110.3513
season0.6068-229.00060.00012.0001.0008.00020.00029.00021.00077.0000.26200.33460.42790.26200.03490.08730.09170.3362
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1860
predicted_3B0.0100
predicted_AB3.5570
predicted_AVG0.2676
predicted_BB0.3220
predicted_H0.9520
predicted_HBP0.0870
predicted_HR0.1140
predicted_OBP0.3437
predicted_R0.5280
predicted_RBI0.3360
predicted_SLG0.4215
predicted_SO1.1830
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.17600.18600.1802model_form_blend
predicted_3B0.01500.01000.0129model_form_blend
predicted_AB3.36803.55703.4472model_form_blend
predicted_AVG0.24200.26760.2527model_form_blend
predicted_BB0.30900.32200.3144model_form_blend
predicted_H0.35000.95200.6023model_form_blend
predicted_HBP-0.08700.0870form_only
predicted_HR0.06000.11400.0826model_form_blend
predicted_OBP0.31100.34370.3247model_form_blend
predicted_R0.42600.52800.4687model_form_blend
predicted_RBI0.17000.33600.2396model_form_blend
predicted_SLG0.41100.42150.4154model_form_blend
predicted_SO1.13201.18301.1534model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date197
Season rows before report date197
Report year2026
Profile rows used68
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO3
SF0
HBP0
season_avg0.262

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.2
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB1
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B
gameID20260617_KC@WAS
game_typefull
mlbID695506
playerID695506
playerNameJac Caglianone
posRF
startedTrue
startingPosition1B
teamKC
teamID12
game_date2026-06-17
sl_k_percent29.8
sl_bb_percent8.5
sl_woba0.342
sl_xwoba0.356
sl_xba0.272
sl_xslg0.473
sl_sweet_spot_percent39.4
sl_barrel_batted_rate14.2
sl_hard_hit_percent56.8
sl_exit_velocity_avg93.4
sl_launch_angle_avg8.0
sl_whiff_percent31.3
sl_swing_percent49.8
Lane Thomas (657041) · BATTER · CF · Team KC
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 138
All-history rows before 20260618: 138
System season_avg: 0.2260
Data season_avg (2026 season-to-date): 0.2274
Diff (system - data): -0.0014
System opponent_avg: 0.2580

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0730.0000.000Hitting_2B0.0800.000-0.0800.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.7703.0003.000Hitting_AB2.8044.0000.196-1.000
predicted_AVG0.2550.6670.333Hitting_AVG0.2270.2500.4390.417
predicted_BB0.4912.0001.000Hitting_BB0.5511.0001.4491.000
predicted_CS-0.0000.000BaseRunning_CS0.0720.000-0.0720.000
predicted_H0.7102.0001.000Hitting_H0.6381.0001.3621.000
predicted_HR0.1600.0000.000Hitting_HR0.0721.000-0.072-1.000
predicted_OBP0.3410.8000.500Hitting_OBP0.3570.4000.4430.400
predicted_R0.2730.0000.000Hitting_R0.2541.000-0.254-1.000
predicted_RBI0.3900.0000.000Hitting_RBI0.3121.000-0.312-1.000
predicted_SLG0.4270.6670.333Hitting_SLG0.3331.0000.333-0.333
predicted_SO0.6910.0001.000Hitting_SO0.7541.000-0.754-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics11
Boosted Metrics5
Deboosted Metrics6
Better Metrics6
Worse Metrics5
Biggest Boostpredicted_BB: 0.4910 -> 2.0000 (boost 1.5090, better)
Biggest Deboostpredicted_SO: 0.6910 -> 0.0000 (deboost -0.6910, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend43131predicted_AB: 2.7700 -> 2.9057 (boost 0.1357, better)predicted_AVG: 0.2550 -> 0.2455 (deboost -0.0095, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_AVG: 0.2455 -> 0.2349 (deboost -0.0106, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling74334predicted_BB: 0.5037 -> 1.0000 (boost 0.4963, better)predicted_RBI: 0.3634 -> 0.0000 (deboost -0.3634, worse)AB rounded to 3 (raw=2.91), rates preserved: AVG=0.235 HR/AB=0.059
5consistency_constraints10101-predicted_R: 0.3252 -> 0.0000 (deboost -0.3252, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_OBP: 0.3479 -> 0.5000 (boost 0.1521, better)predicted_SLG: 0.4355 -> 0.3330 (deboost -0.1025, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference32130predicted_BB: 1.0000 -> 2.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.4355 (boost 0.1025, better)predicted_OBP: 0.5000 -> 0.3479 (deboost -0.1521, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "657041",
  "player_name": "Lane Thomas",
  "position": "CF",
  "team": "KC",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.073,
        "predicted_3B": 0.0,
        "predicted_AB": 2.77,
        "predicted_AVG": 0.255,
        "predicted_BB": 0.491,
        "predicted_H": 0.71,
        "predicted_HR": 0.16,
        "predicted_OBP": 0.341,
        "predicted_R": 0.273,
        "predicted_RBI": 0.39,
        "predicted_SLG": 0.427,
        "predicted_SO": 0.691
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0701,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.9057,
        "predicted_AVG": 0.2455,
        "predicted_BB": 0.5122,
        "predicted_H": 0.7137,
        "predicted_HBP": 0.042,
        "predicted_HR": 0.1787,
        "predicted_OBP": 0.3456,
        "predicted_R": 0.3516,
        "predicted_RBI": 0.3929,
        "predicted_SLG": 0.4379,
        "predicted_SO": 0.7138
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.073,
          "after": 0.0701,
          "delta": -0.0029,
          "percent_delta": -0.0397,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.77,
          "after": 2.9057,
          "delta": 0.1357,
          "percent_delta": 0.049,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.255,
          "after": 0.2455,
          "delta": -0.0095,
          "percent_delta": -0.0373,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.491,
          "after": 0.5122,
          "delta": 0.0212,
          "percent_delta": 0.0432,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.71,
          "after": 0.7137,
          "delta": 0.0037,
          "percent_delta": 0.0052,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.16,
          "after": 0.1787,
          "delta": 0.0187,
          "percent_delta": 0.1169,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.341,
          "after": 0.3456,
          "delta": 0.0046,
          "percent_delta": 0.0135,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.273,
          "after": 0.3516,
          "delta": 0.0786,
          "percent_delta": 0.2879,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.39,
          "after": 0.3929,
          "delta": 0.0029,
          "percent_delta": 0.0074,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.427,
          "after": 0.4379,
          "delta": 0.0109,
          "percent_delta": 0.0255,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.691,
          "after": 0.7138,
          "delta": 0.0228,
          "percent_delta": 0.033,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 3,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.77,
          "after": 2.9057,
          "delta": 0.1357,
          "percent_delta": 0.049,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.255,
          "after": 0.2455,
          "delta": -0.0095,
          "percent_delta": -0.0373,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 55
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0701,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.9057,
        "predicted_AVG": 0.2349,
        "predicted_BB": 0.5037,
        "predicted_H": 0.6826,
        "predicted_HBP": 0.042,
        "predicted_HR": 0.1704,
        "predicted_OBP": 0.3479,
        "predicted_R": 0.3252,
        "predicted_RBI": 0.3634,
        "predicted_SLG": 0.4355,
        "predicted_SO": 0.7256
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0701,
          "after": 0.0701,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9057,
          "after": 2.9057,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2455,
          "after": 0.2349,
          "delta": -0.0106,
          "percent_delta": -0.0432,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.5122,
          "after": 0.5037,
          "delta": -0.0085,
          "percent_delta": -0.0166,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7137,
          "after": 0.6826,
          "delta": -0.0311,
          "percent_delta": -0.0436,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.042,
          "after": 0.042,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1787,
          "after": 0.1704,
          "delta": -0.0083,
          "percent_delta": -0.0464,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3456,
          "after": 0.3479,
          "delta": 0.0023,
          "percent_delta": 0.0067,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3516,
          "after": 0.3252,
          "delta": -0.0264,
          "percent_delta": -0.0751,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3929,
          "after": 0.3634,
          "delta": -0.0295,
          "percent_delta": -0.0751,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4379,
          "after": 0.4355,
          "delta": -0.0024,
          "percent_delta": -0.0055,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.7138,
          "after": 0.7256,
          "delta": 0.0118,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2455,
          "after": 0.2349,
          "delta": -0.0106,
          "percent_delta": -0.0432,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.91), rates preserved: AVG=0.235 HR/AB=0.059",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0701,
          "after": 0.0,
          "delta": -0.0701,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9057,
          "after": 3.0,
          "delta": 0.0943,
          "percent_delta": 0.0325,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.5037,
          "after": 1.0,
          "delta": 0.4963,
          "percent_delta": 0.9853,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6826,
          "after": 1.0,
          "delta": 0.3174,
          "percent_delta": 0.465,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.042,
          "after": 0.0,
          "delta": -0.042,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1704,
          "after": 0.0,
          "delta": -0.1704,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3634,
          "after": 0.0,
          "delta": -0.3634,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7256,
          "after": 1.0,
          "delta": 0.2744,
          "percent_delta": 0.3782,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 4,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.5037,
          "after": 1.0,
          "delta": 0.4963,
          "percent_delta": 0.9853,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3634,
          "after": 0.0,
          "delta": -0.3634,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3252,
          "after": 0.0,
          "delta": -0.3252,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3252,
          "after": 0.0,
          "delta": -0.3252,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.5,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2349,
          "after": 0.333,
          "delta": 0.0981,
          "percent_delta": 0.4176,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3479,
          "after": 0.5,
          "delta": 0.1521,
          "percent_delta": 0.4372,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4355,
          "after": 0.333,
          "delta": -0.1025,
          "percent_delta": -0.2354,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3479,
          "after": 0.5,
          "delta": 0.1521,
          "percent_delta": 0.4372,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4355,
          "after": 0.333,
          "delta": -0.1025,
          "percent_delta": -0.2354,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 2.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2349,
        "predicted_BB": 2.0,
        "predicted_CF": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 2.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3479,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4355,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2349,
          "delta": -0.0981,
          "percent_delta": -0.2946,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.5,
          "after": 0.3479,
          "delta": -0.1521,
          "percent_delta": -0.3041,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4355,
          "delta": 0.1025,
          "percent_delta": 0.3079,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4355,
          "delta": 0.1025,
          "percent_delta": 0.3079,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.5,
          "after": 0.3479,
          "delta": -0.1521,
          "percent_delta": -0.3041,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.073,
        "after": 0.0,
        "delta": -0.073,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.77,
        "after": 3.0,
        "delta": 0.23,
        "percent_delta": 0.083,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.255,
        "after": 0.2349,
        "delta": -0.0201,
        "percent_delta": -0.0788,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.491,
        "after": 2.0,
        "delta": 1.509,
        "percent_delta": 3.0733,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.71,
        "after": 2.0,
        "delta": 1.29,
        "percent_delta": 1.8169,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.16,
        "after": 0.0,
        "delta": -0.16,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.341,
        "after": 0.3479,
        "delta": 0.0069,
        "percent_delta": 0.0202,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.273,
        "after": 0.0,
        "delta": -0.273,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.39,
        "after": 0.0,
        "delta": -0.39,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.427,
        "after": 0.4355,
        "delta": 0.0085,
        "percent_delta": 0.0199,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.691,
        "after": 0.0,
        "delta": -0.691,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 5,
      "deboosted_metrics": 6,
      "better_metrics": 6,
      "worse_metrics": 5,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.491,
        "after": 2.0,
        "delta": 1.509,
        "percent_delta": 3.0733,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.691,
        "after": 0.0,
        "delta": -0.691,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.073-
predicted_3B0.000-
predicted_AB2.770-
predicted_AVG0.255-
predicted_BB0.491-
predicted_H0.710-
predicted_HR0.160-
predicted_OBP0.341-
predicted_R0.273-
predicted_RBI0.390-
predicted_SLG0.427-
predicted_SO0.691-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.070-0.003
predicted_3B0.0010.001
predicted_AB2.9060.136
predicted_AVG0.245-0.010
predicted_BB0.5120.021
predicted_H0.7140.004
predicted_HBP0.042-
predicted_HR0.1790.019
predicted_OBP0.3460.005
predicted_R0.3520.079
predicted_RBI0.3930.003
predicted_SLG0.4380.011
predicted_SO0.7140.023
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0700.000
predicted_3B0.0010.000
predicted_AB2.9060.000
predicted_AVG0.235-0.011
predicted_BB0.504-0.008
predicted_H0.683-0.031
predicted_HBP0.0420.000
predicted_HR0.170-0.008
predicted_OBP0.3480.002
predicted_R0.325-0.026
predicted_RBI0.363-0.030
predicted_SLG0.435-0.002
predicted_SO0.7260.012
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.91), rates preserved: AVG=0.235 HR/AB=0.059

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.070
predicted_3B0.000-0.001
predicted_AB3.0000.094
predicted_AVG0.3330.098
predicted_BB1.0000.496
predicted_H1.0000.317
predicted_HR0.000-0.170
predicted_OBP0.5000.152
predicted_R0.000-0.325
predicted_RBI0.000-0.363
predicted_SLG0.333-0.102
predicted_SO1.0000.274
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB2.0001.000
CS0.0000.000
H2.0001.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 55
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0004.0000.0000.0003.0003.0005.0004.0003.0000.22220.36360.72220.22220.16670.16670.22220.1667
last_100.2010-33.0008.0000.0000.0003.0004.0006.0006.0009.0000.24240.37500.51520.24240.09090.12120.18180.2727
season0.6055-146.00033.0004.0000.0005.00017.00015.00027.00038.0000.22600.35230.35620.22600.03430.11640.18490.2603
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0660
predicted_3B0.0020
predicted_AB3.1030
predicted_AVG0.2317
predicted_BB0.5430
predicted_H0.7190
predicted_HBP0.0420
predicted_HR0.2060
predicted_OBP0.3524
predicted_R0.4660
predicted_RBI0.3970
predicted_SLG0.4537
predicted_SO0.7470
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.07300.06600.0701model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB2.77003.10302.9057model_form_blend
predicted_AVG0.25500.23170.2455model_form_blend
predicted_BB0.49100.54300.5122model_form_blend
predicted_H0.71000.71900.7137model_form_blend
predicted_HBP-0.04200.0420form_only
predicted_HR0.16000.20600.1787model_form_blend
predicted_OBP0.34100.35240.3456model_form_blend
predicted_R0.27300.46600.3516model_form_blend
predicted_RBI0.39000.39700.3929model_form_blend
predicted_SLG0.42700.45370.4379model_form_blend
predicted_SO0.69100.74700.7138model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date138
Season rows before report date138
Report year2026
Profile rows used55
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB3
H2
2B0
3B0
HR0
R0
RBI0
BB2
SO0
SF0
HBP0
season_avg0.226

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB1
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R1
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB4
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedCF
gameID20260617_KC@WAS
game_typefull
mlbID657041
playerID657041
playerNameLane Thomas
posCF
startedTrue
startingPositionCF
teamKC
teamID12
game_date2026-06-17
sl_k_percent21.2
sl_bb_percent16.2
sl_woba0.327
sl_xwoba0.324
sl_xba0.229
sl_xslg0.349
sl_sweet_spot_percent38.2
sl_barrel_batted_rate5.5
sl_hard_hit_percent36.4
sl_exit_velocity_avg87.0
sl_launch_angle_avg24.1
sl_whiff_percent19.6
sl_swing_percent39.8
Starling Marte (516782) · BATTER · RF · Team KC
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 68
All-history rows before 20260618: 68
System season_avg: 0.2560
Data season_avg (2026 season-to-date): 0.3010
Diff (system - data): -0.0450
System opponent_avg: 0.1280
System season_avg diverges from 2026 season-to-date by -0.0450. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1000.0000.000Hitting_2B0.1470.000-0.1470.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.6004.0003.000Hitting_AB2.8824.0001.1180.000
predicted_AVG0.2660.0000.333Hitting_AVG0.3010.250-0.301-0.250
predicted_BB0.1670.0000.000Hitting_BB0.1910.000-0.1910.000
predicted_CS-0.0000.000BaseRunning_CS0.0590.000-0.0590.000
predicted_H0.6700.0001.000Hitting_H0.8681.000-0.868-1.000
predicted_HR0.1000.0000.000Hitting_HR0.0150.000-0.0150.000
predicted_OBP0.3040.0000.333Hitting_OBP0.3530.250-0.353-0.250
predicted_R0.2000.0000.000Hitting_R0.1760.000-0.1760.000
predicted_RBI0.3400.0000.000Hitting_RBI0.1620.000-0.1620.000
predicted_SLG0.3740.0000.333Hitting_SLG0.3670.250-0.367-0.250
predicted_SO0.8001.0001.000Hitting_SO0.8530.0000.1471.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics2
Deboosted Metrics8
Better Metrics1
Worse Metrics9
Biggest Boostpredicted_AB: 2.6000 -> 4.0000 (boost 1.4000, better)
Biggest Deboostpredicted_H: 0.6700 -> 0.0000 (deboost -0.6700, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend21111predicted_AB: 2.6000 -> 2.7557 (boost 0.1557, better)predicted_AVG: 0.2660 -> 0.2579 (deboost -0.0081, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot31212predicted_SLG: 0.3705 -> 0.3766 (boost 0.0061, better)predicted_OBP: 0.3030 -> 0.2861 (deboost -0.0169, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling83526predicted_H: 0.6648 -> 1.0000 (boost 0.3352, better)predicted_RBI: 0.3089 -> 0.0000 (deboost -0.3089, worse)AB rounded to 3 (raw=2.76), rates preserved: AVG=0.241 HR/AB=0.033
5bvp_blend00000--Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.000)
6consistency_constraints10101-predicted_R: 0.2237 -> 0.0000 (deboost -0.2237, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context32121predicted_AVG: 0.2412 -> 0.3330 (boost 0.0918, better)predicted_SLG: 0.3766 -> 0.3330 (deboost -0.0436, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference21111predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final31212predicted_SLG: 0.3330 -> 0.3766 (boost 0.0436, better)predicted_AVG: 0.3330 -> 0.2412 (deboost -0.0918, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "516782",
  "player_name": "Starling Marte",
  "position": "RF",
  "team": "KC",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.1,
        "predicted_3B": 0.0,
        "predicted_AB": 2.6,
        "predicted_AVG": 0.266,
        "predicted_BB": 0.167,
        "predicted_H": 0.67,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.304,
        "predicted_R": 0.2,
        "predicted_RBI": 0.34,
        "predicted_SLG": 0.374,
        "predicted_SO": 0.8
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0963,
        "predicted_3B": 0.0011,
        "predicted_AB": 2.7557,
        "predicted_AVG": 0.2579,
        "predicted_BB": 0.176,
        "predicted_H": 0.6951,
        "predicted_HBP": 0.059,
        "predicted_HR": 0.0959,
        "predicted_OBP": 0.303,
        "predicted_R": 0.2419,
        "predicted_RBI": 0.334,
        "predicted_SLG": 0.3705,
        "predicted_SO": 0.8127
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1,
          "after": 0.0963,
          "delta": -0.0037,
          "percent_delta": -0.037,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0011,
          "delta": 0.0011,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.6,
          "after": 2.7557,
          "delta": 0.1557,
          "percent_delta": 0.0599,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.266,
          "after": 0.2579,
          "delta": -0.0081,
          "percent_delta": -0.0305,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.167,
          "after": 0.176,
          "delta": 0.009,
          "percent_delta": 0.0539,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.67,
          "after": 0.6951,
          "delta": 0.0251,
          "percent_delta": 0.0375,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.0959,
          "delta": -0.0041,
          "percent_delta": -0.041,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.304,
          "after": 0.303,
          "delta": -0.001,
          "percent_delta": -0.0033,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.2,
          "after": 0.2419,
          "delta": 0.0419,
          "percent_delta": 0.2095,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.34,
          "after": 0.334,
          "delta": -0.006,
          "percent_delta": -0.0176,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.374,
          "after": 0.3705,
          "delta": -0.0035,
          "percent_delta": -0.0094,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.8,
          "after": 0.8127,
          "delta": 0.0127,
          "percent_delta": 0.0159,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.6,
          "after": 2.7557,
          "delta": 0.1557,
          "percent_delta": 0.0599,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.266,
          "after": 0.2579,
          "delta": -0.0081,
          "percent_delta": -0.0305,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 30
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0963,
        "predicted_3B": 0.0011,
        "predicted_AB": 2.7557,
        "predicted_AVG": 0.2412,
        "predicted_BB": 0.1731,
        "predicted_H": 0.6648,
        "predicted_HBP": 0.059,
        "predicted_HR": 0.0915,
        "predicted_OBP": 0.2861,
        "predicted_R": 0.2237,
        "predicted_RBI": 0.3089,
        "predicted_SLG": 0.3766,
        "predicted_SO": 0.8262
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0963,
          "after": 0.0963,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0011,
          "after": 0.0011,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.7557,
          "after": 2.7557,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2579,
          "after": 0.2412,
          "delta": -0.0167,
          "percent_delta": -0.0648,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.176,
          "after": 0.1731,
          "delta": -0.0029,
          "percent_delta": -0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6951,
          "after": 0.6648,
          "delta": -0.0303,
          "percent_delta": -0.0436,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.059,
          "after": 0.059,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0959,
          "after": 0.0915,
          "delta": -0.0044,
          "percent_delta": -0.0459,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.303,
          "after": 0.2861,
          "delta": -0.0169,
          "percent_delta": -0.0558,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.2419,
          "after": 0.2237,
          "delta": -0.0182,
          "percent_delta": -0.0752,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.334,
          "after": 0.3089,
          "delta": -0.0251,
          "percent_delta": -0.0751,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3705,
          "after": 0.3766,
          "delta": 0.0061,
          "percent_delta": 0.0165,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8127,
          "after": 0.8262,
          "delta": 0.0135,
          "percent_delta": 0.0166,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.3705,
          "after": 0.3766,
          "delta": 0.0061,
          "percent_delta": 0.0165,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.303,
          "after": 0.2861,
          "delta": -0.0169,
          "percent_delta": -0.0558,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.76), rates preserved: AVG=0.241 HR/AB=0.033",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0963,
          "after": 0.0,
          "delta": -0.0963,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0011,
          "after": 0.0,
          "delta": -0.0011,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.7557,
          "after": 3.0,
          "delta": 0.2443,
          "percent_delta": 0.0887,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1731,
          "after": 0.0,
          "delta": -0.1731,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6648,
          "after": 1.0,
          "delta": 0.3352,
          "percent_delta": 0.5042,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.059,
          "after": 0.0,
          "delta": -0.059,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0915,
          "after": 0.0,
          "delta": -0.0915,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3089,
          "after": 0.0,
          "delta": -0.3089,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8262,
          "after": 1.0,
          "delta": 0.1738,
          "percent_delta": 0.2104,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 3,
        "deboosted_metrics": 5,
        "better_metrics": 2,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.6648,
          "after": 1.0,
          "delta": 0.3352,
          "percent_delta": 0.5042,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3089,
          "after": 0.0,
          "delta": -0.3089,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.000)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9429,
        "bvp": 0.0571
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.2237,
          "after": 0.0,
          "delta": -0.2237,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.2237,
          "after": 0.0,
          "delta": -0.2237,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2412,
          "after": 0.333,
          "delta": 0.0918,
          "percent_delta": 0.3806,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2861,
          "after": 0.333,
          "delta": 0.0469,
          "percent_delta": 0.1639,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3766,
          "after": 0.333,
          "delta": -0.0436,
          "percent_delta": -0.1158,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2412,
          "after": 0.333,
          "delta": 0.0918,
          "percent_delta": 0.3806,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3766,
          "after": 0.333,
          "delta": -0.0436,
          "percent_delta": -0.1158,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2412,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2861,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_RF": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3766,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2412,
          "delta": -0.0918,
          "percent_delta": -0.2755,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2861,
          "delta": -0.0469,
          "percent_delta": -0.1409,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3766,
          "delta": 0.0436,
          "percent_delta": 0.1308,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3766,
          "delta": 0.0436,
          "percent_delta": 0.1308,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2412,
          "delta": -0.0918,
          "percent_delta": -0.2755,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.6,
        "after": 4.0,
        "delta": 1.4,
        "percent_delta": 0.5385,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.266,
        "after": 0.2412,
        "delta": -0.0248,
        "percent_delta": -0.0932,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.167,
        "after": 0.0,
        "delta": -0.167,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.67,
        "after": 0.0,
        "delta": -0.67,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.304,
        "after": 0.2861,
        "delta": -0.0179,
        "percent_delta": -0.0589,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.2,
        "after": 0.0,
        "delta": -0.2,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.34,
        "after": 0.0,
        "delta": -0.34,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.374,
        "after": 0.3766,
        "delta": 0.0026,
        "percent_delta": 0.007,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.8,
        "after": 1.0,
        "delta": 0.2,
        "percent_delta": 0.25,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 2,
      "deboosted_metrics": 8,
      "better_metrics": 1,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 2.6,
        "after": 4.0,
        "delta": 1.4,
        "percent_delta": 0.5385,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.67,
        "after": 0.0,
        "delta": -0.67,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.100-
predicted_3B0.000-
predicted_AB2.600-
predicted_AVG0.266-
predicted_BB0.167-
predicted_H0.670-
predicted_HR0.100-
predicted_OBP0.304-
predicted_R0.200-
predicted_RBI0.340-
predicted_SLG0.374-
predicted_SO0.800-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.096-0.004
predicted_3B0.0010.001
predicted_AB2.7560.156
predicted_AVG0.258-0.008
predicted_BB0.1760.009
predicted_H0.6950.025
predicted_HBP0.059-
predicted_HR0.096-0.004
predicted_OBP0.303-0.001
predicted_R0.2420.042
predicted_RBI0.334-0.006
predicted_SLG0.370-0.004
predicted_SO0.8130.013
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0960.000
predicted_3B0.0010.000
predicted_AB2.7560.000
predicted_AVG0.241-0.017
predicted_BB0.173-0.003
predicted_H0.665-0.030
predicted_HBP0.0590.000
predicted_HR0.091-0.004
predicted_OBP0.286-0.017
predicted_R0.224-0.018
predicted_RBI0.309-0.025
predicted_SLG0.3770.006
predicted_SO0.8260.014
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.76), rates preserved: AVG=0.241 HR/AB=0.033

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=5.0, weight=0.057, BvP AVG=0.000)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.096
predicted_3B0.000-0.001
predicted_AB3.0000.244
predicted_AVG0.3330.092
predicted_BB0.000-0.173
predicted_H1.0000.335
predicted_HR0.000-0.091
predicted_OBP0.3330.047
predicted_R0.000-0.224
predicted_RBI0.000-0.309
predicted_SLG0.333-0.044
predicted_SO1.0000.174
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 30
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-16.0004.0000.0000.0001.0003.0002.0001.0004.0000.25000.29410.43750.25000.06250.18750.06250.2500
last_100.2010-26.0005.0000.0000.0001.0003.0003.0001.0008.0000.19230.25000.30770.19230.03850.11540.03850.3077
season0.6030-78.00020.0003.0000.0001.0005.0006.0005.00024.0000.25640.31400.33330.25640.01280.06410.06410.3077
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0900
predicted_3B0.0030
predicted_AB3.0160
predicted_AVG0.2444
predicted_BB0.1910
predicted_H0.7370
predicted_HBP0.0590
predicted_HR0.0890
predicted_OBP0.3014
predicted_R0.3120
predicted_RBI0.3240
predicted_SLG0.3647
predicted_SO0.8340
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.10000.09000.0963model_form_blend
predicted_3B0.00000.00300.0011model_form_blend
predicted_AB2.60003.01602.7557model_form_blend
predicted_AVG0.26600.24440.2579model_form_blend
predicted_BB0.16700.19100.1760model_form_blend
predicted_H0.67000.73700.6951model_form_blend
predicted_HBP-0.05900.0590form_only
predicted_HR0.10000.08900.0959model_form_blend
predicted_OBP0.30400.30140.3030model_form_blend
predicted_R0.20000.31200.2419model_form_blend
predicted_RBI0.34000.32400.3340model_form_blend
predicted_SLG0.37400.36470.3705model_form_blend
predicted_SO0.80000.83400.8127model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date68
Season rows before report date68
Report year2026
Profile rows used30
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.256

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260616_KC@WAS
game_typefull
mlbID516782
playerID516782
playerNameStarling Marte
posRF
startedTrue
startingPositionDH
teamKC
teamID12
game_date2026-06-16
sl_k_percent27.9
sl_bb_percent5.8
sl_woba0.292
sl_xwoba0.303
sl_xba0.238
sl_xslg0.391
sl_sweet_spot_percent30.9
sl_barrel_batted_rate12.7
sl_hard_hit_percent38.2
sl_exit_velocity_avg90.6
sl_launch_angle_avg6.0
sl_whiff_percent29.7
sl_swing_percent50.2
Bobby Witt Jr. (677951) · BATTER · SS · Team KC
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 262
All-history rows before 20260618: 262
System season_avg: 0.2890
Data season_avg (2026 season-to-date): 0.2892
Diff (system - data): -0.0002
System opponent_avg: 0.1870

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2570.0000.000Hitting_2B0.2520.000-0.2520.000
predicted_3B0.0140.0000.000Hitting_3B0.0190.000-0.0190.000
predicted_AB4.3804.0004.000Hitting_AB4.0114.000-0.0110.000
predicted_AVG0.2650.0000.250Hitting_AVG0.2890.250-0.289-0.250
predicted_BB0.4461.0000.000Hitting_BB0.4501.0000.5500.000
predicted_CS-0.0000.000BaseRunning_CS0.0610.000-0.0610.000
predicted_H1.1600.0001.000Hitting_H1.1601.000-1.160-1.000
predicted_HR0.1300.0000.000Hitting_HR0.1530.000-0.1530.000
predicted_OBP0.3690.2000.250Hitting_OBP0.3590.400-0.159-0.200
predicted_R0.5140.0000.000Hitting_R0.5000.000-0.5000.000
predicted_RBI0.4500.0000.000Hitting_RBI0.4431.000-0.443-1.000
predicted_SLG0.4440.0000.250Hitting_SLG0.4760.250-0.476-0.250
predicted_SO0.7701.0001.000Hitting_SO0.8440.0000.1561.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics2
Worse Metrics9
Biggest Boostpredicted_BB: 0.4460 -> 1.0000 (boost 0.5540, better)
Biggest Deboostpredicted_H: 1.1600 -> 0.0000 (deboost -1.1600, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend53241predicted_H: 1.1600 -> 1.2111 (boost 0.0511, better)predicted_AB: 4.3800 -> 4.2072 (deboost -0.1728, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot40404-predicted_H: 1.2111 -> 1.1583 (deboost -0.0528, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71607predicted_SO: 0.7197 -> 1.0000 (boost 0.2803, worse)predicted_BB: 0.4490 -> 0.0000 (deboost -0.4490, worse)AB rounded to 4 (raw=4.38), rates preserved: AVG=0.264 HR/AB=0.023
5bvp_blend00000--Sample-size BvP blend (BvP AB=7.0, weight=0.076, BvP AVG=0.143)
6consistency_constraints10101-predicted_R: 0.4943 -> 0.0000 (deboost -0.4943, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context30303-predicted_SLG: 0.4165 -> 0.2500 (deboost -0.1665, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference21111predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final33030predicted_SLG: 0.2500 -> 0.4165 (boost 0.1665, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "677951",
  "player_name": "Bobby Witt Jr.",
  "position": "SS",
  "team": "KC",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.257,
        "predicted_3B": 0.014,
        "predicted_AB": 4.38,
        "predicted_AVG": 0.265,
        "predicted_BB": 0.446,
        "predicted_H": 1.16,
        "predicted_HR": 0.13,
        "predicted_OBP": 0.369,
        "predicted_R": 0.514,
        "predicted_RBI": 0.45,
        "predicted_SLG": 0.444,
        "predicted_SO": 0.77
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2613,
        "predicted_3B": 0.0119,
        "predicted_AB": 4.2072,
        "predicted_AVG": 0.2893,
        "predicted_BB": 0.4566,
        "predicted_H": 1.2111,
        "predicted_HBP": 0.01,
        "predicted_HR": 0.1079,
        "predicted_OBP": 0.3794,
        "predicted_R": 0.5344,
        "predicted_RBI": 0.4232,
        "predicted_SLG": 0.4477,
        "predicted_SO": 0.7079
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.257,
          "after": 0.2613,
          "delta": 0.0043,
          "percent_delta": 0.0167,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.014,
          "after": 0.0119,
          "delta": -0.0021,
          "percent_delta": -0.15,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.38,
          "after": 4.2072,
          "delta": -0.1728,
          "percent_delta": -0.0395,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.265,
          "after": 0.2893,
          "delta": 0.0243,
          "percent_delta": 0.0917,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.446,
          "after": 0.4566,
          "delta": 0.0106,
          "percent_delta": 0.0238,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.16,
          "after": 1.2111,
          "delta": 0.0511,
          "percent_delta": 0.0441,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.13,
          "after": 0.1079,
          "delta": -0.0221,
          "percent_delta": -0.17,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.369,
          "after": 0.3794,
          "delta": 0.0104,
          "percent_delta": 0.0282,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.514,
          "after": 0.5344,
          "delta": 0.0204,
          "percent_delta": 0.0397,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.45,
          "after": 0.4232,
          "delta": -0.0268,
          "percent_delta": -0.0596,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.444,
          "after": 0.4477,
          "delta": 0.0037,
          "percent_delta": 0.0083,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.77,
          "after": 0.7079,
          "delta": -0.0621,
          "percent_delta": -0.0806,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 3,
        "deboosted_metrics": 2,
        "better_metrics": 4,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 1.16,
          "after": 1.2111,
          "delta": 0.0511,
          "percent_delta": 0.0441,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.38,
          "after": 4.2072,
          "delta": -0.1728,
          "percent_delta": -0.0395,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 74
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2613,
        "predicted_3B": 0.0119,
        "predicted_AB": 4.2072,
        "predicted_AVG": 0.2753,
        "predicted_BB": 0.449,
        "predicted_H": 1.1583,
        "predicted_HBP": 0.01,
        "predicted_HR": 0.1029,
        "predicted_OBP": 0.3452,
        "predicted_R": 0.4943,
        "predicted_RBI": 0.3914,
        "predicted_SLG": 0.4165,
        "predicted_SO": 0.7197
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2613,
          "after": 0.2613,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0119,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.2072,
          "after": 4.2072,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2893,
          "after": 0.2753,
          "delta": -0.014,
          "percent_delta": -0.0484,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4566,
          "after": 0.449,
          "delta": -0.0076,
          "percent_delta": -0.0166,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.2111,
          "after": 1.1583,
          "delta": -0.0528,
          "percent_delta": -0.0436,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.01,
          "after": 0.01,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1079,
          "after": 0.1029,
          "delta": -0.005,
          "percent_delta": -0.0463,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3794,
          "after": 0.3452,
          "delta": -0.0342,
          "percent_delta": -0.0901,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5344,
          "after": 0.4943,
          "delta": -0.0401,
          "percent_delta": -0.075,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4232,
          "after": 0.3914,
          "delta": -0.0318,
          "percent_delta": -0.0751,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4477,
          "after": 0.4165,
          "delta": -0.0312,
          "percent_delta": -0.0697,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7079,
          "after": 0.7197,
          "delta": 0.0118,
          "percent_delta": 0.0167,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 0,
        "deboosted_metrics": 4,
        "better_metrics": 0,
        "worse_metrics": 4,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.2111,
          "after": 1.1583,
          "delta": -0.0528,
          "percent_delta": -0.0436,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.38), rates preserved: AVG=0.264 HR/AB=0.023",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2613,
          "after": 0.0,
          "delta": -0.2613,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0,
          "delta": -0.0119,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.2072,
          "after": 4.0,
          "delta": -0.2072,
          "percent_delta": -0.0492,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.449,
          "after": 0.0,
          "delta": -0.449,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.1583,
          "after": 1.0,
          "delta": -0.1583,
          "percent_delta": -0.1367,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.01,
          "after": 0.0,
          "delta": -0.01,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1029,
          "after": 0.0,
          "delta": -0.1029,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3914,
          "after": 0.0,
          "delta": -0.3914,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7197,
          "after": 1.0,
          "delta": 0.2803,
          "percent_delta": 0.3895,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 0,
        "worse_metrics": 7,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.7197,
          "after": 1.0,
          "delta": 0.2803,
          "percent_delta": 0.3895,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.449,
          "after": 0.0,
          "delta": -0.449,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=7.0, weight=0.076, BvP AVG=0.143)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9243,
        "bvp": 0.0757
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4943,
          "after": 0.0,
          "delta": -0.4943,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4943,
          "after": 0.0,
          "delta": -0.4943,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2753,
          "after": 0.25,
          "delta": -0.0253,
          "percent_delta": -0.0919,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3452,
          "after": 0.25,
          "delta": -0.0952,
          "percent_delta": -0.2758,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4165,
          "after": 0.25,
          "delta": -0.1665,
          "percent_delta": -0.3998,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4165,
          "after": 0.25,
          "delta": -0.1665,
          "percent_delta": -0.3998,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2753,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3452,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4165,
        "predicted_SO": 1.0,
        "predicted_SS": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2753,
          "delta": 0.0253,
          "percent_delta": 0.1013,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3452,
          "delta": 0.0952,
          "percent_delta": 0.3808,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4165,
          "delta": 0.1665,
          "percent_delta": 0.6658,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4165,
          "delta": 0.1665,
          "percent_delta": 0.6658,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.257,
        "after": 0.0,
        "delta": -0.257,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.014,
        "after": 0.0,
        "delta": -0.014,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.38,
        "after": 4.0,
        "delta": -0.38,
        "percent_delta": -0.0868,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.265,
        "after": 0.2753,
        "delta": 0.0103,
        "percent_delta": 0.0389,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.446,
        "after": 1.0,
        "delta": 0.554,
        "percent_delta": 1.2422,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.16,
        "after": 0.0,
        "delta": -1.16,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.13,
        "after": 0.0,
        "delta": -0.13,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.369,
        "after": 0.3452,
        "delta": -0.0238,
        "percent_delta": -0.0645,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.514,
        "after": 0.0,
        "delta": -0.514,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.45,
        "after": 0.0,
        "delta": -0.45,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.444,
        "after": 0.4165,
        "delta": -0.0275,
        "percent_delta": -0.0619,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.77,
        "after": 1.0,
        "delta": 0.23,
        "percent_delta": 0.2987,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 2,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.446,
        "after": 1.0,
        "delta": 0.554,
        "percent_delta": 1.2422,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 1.16,
        "after": 0.0,
        "delta": -1.16,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.257-
predicted_3B0.014-
predicted_AB4.380-
predicted_AVG0.265-
predicted_BB0.446-
predicted_H1.160-
predicted_HR0.130-
predicted_OBP0.369-
predicted_R0.514-
predicted_RBI0.450-
predicted_SLG0.444-
predicted_SO0.770-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2610.004
predicted_3B0.012-0.002
predicted_AB4.207-0.173
predicted_AVG0.2890.024
predicted_BB0.4570.011
predicted_H1.2110.051
predicted_HBP0.010-
predicted_HR0.108-0.022
predicted_OBP0.3790.010
predicted_R0.5340.020
predicted_RBI0.423-0.027
predicted_SLG0.4480.004
predicted_SO0.708-0.062
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2610.000
predicted_3B0.0120.000
predicted_AB4.2070.000
predicted_AVG0.275-0.014
predicted_BB0.449-0.008
predicted_H1.158-0.053
predicted_HBP0.0100.000
predicted_HR0.103-0.005
predicted_OBP0.345-0.034
predicted_R0.494-0.040
predicted_RBI0.391-0.032
predicted_SLG0.416-0.031
predicted_SO0.7200.012
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.38), rates preserved: AVG=0.264 HR/AB=0.023

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=7.0, weight=0.076, BvP AVG=0.143)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.261
predicted_3B0.000-0.012
predicted_AB4.000-0.207
predicted_AVG0.250-0.025
predicted_BB0.000-0.449
predicted_H1.000-0.158
predicted_HR0.000-0.103
predicted_OBP0.250-0.095
predicted_R0.000-0.494
predicted_RBI0.000-0.391
predicted_SLG0.250-0.166
predicted_SO1.0000.280
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA5.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 74
Reference playing time: 4.380
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.0009.0002.0000.0000.0002.0004.0003.0001.0000.45000.52170.55000.45000.00000.10000.15000.0500
last_100.2010-40.00013.0002.0000.0000.0003.0005.0005.0005.0000.32500.40000.37500.32500.00000.07500.12500.1250
season0.6074-294.00085.00019.0001.0009.00029.00038.00033.00057.0000.28910.36060.45240.28910.03060.09860.11220.1939
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2670
predicted_3B0.0090
predicted_AB3.9740
predicted_AVG0.3220
predicted_BB0.4710
predicted_H1.2800
predicted_HBP0.0100
predicted_HR0.0780
predicted_OBP0.3934
predicted_R0.5620
predicted_RBI0.3870
predicted_SLG0.4526
predicted_SO0.6240
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.25700.26700.2613model_form_blend
predicted_3B0.01400.00900.0119model_form_blend
predicted_AB4.38003.97404.2072model_form_blend
predicted_AVG0.26500.32200.2893model_form_blend
predicted_BB0.44600.47100.4566model_form_blend
predicted_H1.16001.28001.2111model_form_blend
predicted_HBP-0.01000.0100form_only
predicted_HR0.13000.07800.1079model_form_blend
predicted_OBP0.36900.39340.3794model_form_blend
predicted_R0.51400.56200.5344model_form_blend
predicted_RBI0.45000.38700.4232model_form_blend
predicted_SLG0.44400.45260.4477model_form_blend
predicted_SO0.77000.62400.7079model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date262
Season rows before report date262
Report year2026
Profile rows used74
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA5
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO1
SF0
HBP0
season_avg0.289

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB1
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB1
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedSS
gameID20260617_KC@WAS
game_typefull
mlbID677951
playerID677951
playerNameBobby Witt Jr.
posSS
startedTrue
startingPositionSS
teamKC
teamID12
game_date2026-06-17
sl_k_percent17.0
sl_bb_percent10.4
sl_woba0.356
sl_xwoba0.387
sl_xba0.309
sl_xslg0.512
sl_sweet_spot_percent38.4
sl_barrel_batted_rate11.8
sl_hard_hit_percent52.1
sl_exit_velocity_avg93.2
sl_launch_angle_avg16.9
sl_whiff_percent23.5
sl_swing_percent47.5
Salvador Perez (521692) · BATTER · C · Team KC
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 237
All-history rows before 20260618: 237
System season_avg: 0.2030
Data season_avg (2026 season-to-date): 0.2187
Diff (system - data): -0.0157
System opponent_avg: 0.4610
System season_avg diverges from 2026 season-to-date by -0.0157. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.0880.0000.000Hitting_2B0.0970.000-0.0970.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.1004.0004.000Hitting_AB3.8785.0000.122-1.000
predicted_AVG0.2120.0000.250Hitting_AVG0.2190.200-0.219-0.200
predicted_BB0.1760.0000.000Hitting_BB0.2150.000-0.2150.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.8700.0001.000Hitting_H0.8481.000-0.848-1.000
predicted_HR0.1100.0000.000Hitting_HR0.1770.000-0.1770.000
predicted_OBP0.2500.0000.250Hitting_OBP0.2690.200-0.269-0.200
predicted_R0.3680.0000.000Hitting_R0.4390.000-0.4390.000
predicted_RBI0.3400.0000.000Hitting_RBI0.4730.000-0.4730.000
predicted_SLG0.3240.0000.250Hitting_SLG0.3810.200-0.381-0.200
predicted_SO0.8092.0001.000Hitting_SO0.8060.0001.1942.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics1
Deboosted Metrics10
Better Metrics0
Worse Metrics11
Biggest Boostpredicted_SO: 0.8090 -> 2.0000 (boost 1.1910, worse)
Biggest Deboostpredicted_H: 0.8700 -> 0.0000 (deboost -0.8700, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend30303-predicted_SLG: 0.3240 -> 0.3020 (deboost -0.0220, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.3020 -> 0.2841 (deboost -0.0179, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_H: 0.7888 -> 1.0000 (boost 0.2112, better)predicted_RBI: 0.2914 -> 0.0000 (deboost -0.2914, worse)AB rounded to 4 (raw=4.10), rates preserved: AVG=0.192 HR/AB=0.023
5bvp_blend00000--Sample-size BvP blend (BvP AB=7.0, weight=0.076, BvP AVG=0.571)
6consistency_constraints10101-predicted_R: 0.3298 -> 0.0000 (deboost -0.3298, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context32121predicted_AVG: 0.1938 -> 0.2500 (boost 0.0562, better)predicted_SLG: 0.2841 -> 0.2500 (deboost -0.0341, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference21102predicted_SO: 1.0000 -> 2.0000 (boost 1.0000, worse)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final31212predicted_SLG: 0.2500 -> 0.2841 (boost 0.0341, better)predicted_AVG: 0.2500 -> 0.1938 (deboost -0.0562, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "521692",
  "player_name": "Salvador Perez",
  "position": "C",
  "team": "KC",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.088,
        "predicted_3B": 0.0,
        "predicted_AB": 4.1,
        "predicted_AVG": 0.212,
        "predicted_BB": 0.176,
        "predicted_H": 0.87,
        "predicted_HR": 0.11,
        "predicted_OBP": 0.25,
        "predicted_R": 0.368,
        "predicted_RBI": 0.34,
        "predicted_SLG": 0.324,
        "predicted_SO": 0.809
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.0796,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.0704,
        "predicted_AVG": 0.2024,
        "predicted_BB": 0.1557,
        "predicted_H": 0.8248,
        "predicted_HBP": 0.045,
        "predicted_HR": 0.1003,
        "predicted_OBP": 0.2371,
        "predicted_R": 0.3566,
        "predicted_RBI": 0.3151,
        "predicted_SLG": 0.302,
        "predicted_SO": 0.8174
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.088,
          "after": 0.0796,
          "delta": -0.0084,
          "percent_delta": -0.0955,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.1,
          "after": 4.0704,
          "delta": -0.0296,
          "percent_delta": -0.0072,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.212,
          "after": 0.2024,
          "delta": -0.0096,
          "percent_delta": -0.0453,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.176,
          "after": 0.1557,
          "delta": -0.0203,
          "percent_delta": -0.1153,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.87,
          "after": 0.8248,
          "delta": -0.0452,
          "percent_delta": -0.052,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.11,
          "after": 0.1003,
          "delta": -0.0097,
          "percent_delta": -0.0882,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2371,
          "delta": -0.0129,
          "percent_delta": -0.0516,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.368,
          "after": 0.3566,
          "delta": -0.0114,
          "percent_delta": -0.031,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.34,
          "after": 0.3151,
          "delta": -0.0249,
          "percent_delta": -0.0732,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.324,
          "after": 0.302,
          "delta": -0.022,
          "percent_delta": -0.0679,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.809,
          "after": 0.8174,
          "delta": 0.0084,
          "percent_delta": 0.0104,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.324,
          "after": 0.302,
          "delta": -0.022,
          "percent_delta": -0.0679,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 68
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.0796,
        "predicted_3B": 0.0004,
        "predicted_AB": 4.0704,
        "predicted_AVG": 0.1938,
        "predicted_BB": 0.1531,
        "predicted_H": 0.7888,
        "predicted_HBP": 0.045,
        "predicted_HR": 0.0957,
        "predicted_OBP": 0.223,
        "predicted_R": 0.3298,
        "predicted_RBI": 0.2914,
        "predicted_SLG": 0.2841,
        "predicted_SO": 0.831
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0796,
          "after": 0.0796,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0704,
          "after": 4.0704,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2024,
          "after": 0.1938,
          "delta": -0.0086,
          "percent_delta": -0.0425,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1557,
          "after": 0.1531,
          "delta": -0.0026,
          "percent_delta": -0.0167,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8248,
          "after": 0.7888,
          "delta": -0.036,
          "percent_delta": -0.0436,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.045,
          "after": 0.045,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1003,
          "after": 0.0957,
          "delta": -0.0046,
          "percent_delta": -0.0459,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2371,
          "after": 0.223,
          "delta": -0.0141,
          "percent_delta": -0.0595,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3566,
          "after": 0.3298,
          "delta": -0.0268,
          "percent_delta": -0.0752,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3151,
          "after": 0.2914,
          "delta": -0.0237,
          "percent_delta": -0.0752,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.302,
          "after": 0.2841,
          "delta": -0.0179,
          "percent_delta": -0.0593,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8174,
          "after": 0.831,
          "delta": 0.0136,
          "percent_delta": 0.0166,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.302,
          "after": 0.2841,
          "delta": -0.0179,
          "percent_delta": -0.0593,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.10), rates preserved: AVG=0.192 HR/AB=0.023",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0796,
          "after": 0.0,
          "delta": -0.0796,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0704,
          "after": 4.0,
          "delta": -0.0704,
          "percent_delta": -0.0173,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1531,
          "after": 0.0,
          "delta": -0.1531,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7888,
          "after": 1.0,
          "delta": 0.2112,
          "percent_delta": 0.2677,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.045,
          "after": 0.0,
          "delta": -0.045,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0957,
          "after": 0.0,
          "delta": -0.0957,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2914,
          "after": 0.0,
          "delta": -0.2914,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.831,
          "after": 1.0,
          "delta": 0.169,
          "percent_delta": 0.2034,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.7888,
          "after": 1.0,
          "delta": 0.2112,
          "percent_delta": 0.2677,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.2914,
          "after": 0.0,
          "delta": -0.2914,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=7.0, weight=0.076, BvP AVG=0.571)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9243,
        "bvp": 0.0757
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3298,
          "after": 0.0,
          "delta": -0.3298,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3298,
          "after": 0.0,
          "delta": -0.3298,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1938,
          "after": 0.25,
          "delta": 0.0562,
          "percent_delta": 0.29,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.223,
          "after": 0.25,
          "delta": 0.027,
          "percent_delta": 0.1211,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2841,
          "after": 0.25,
          "delta": -0.0341,
          "percent_delta": -0.12,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1938,
          "after": 0.25,
          "delta": 0.0562,
          "percent_delta": 0.29,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.2841,
          "after": 0.25,
          "delta": -0.0341,
          "percent_delta": -0.12,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.1938,
        "predicted_BB": 0.0,
        "predicted_C": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.223,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.2841,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.1938,
          "delta": -0.0562,
          "percent_delta": -0.2248,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.223,
          "delta": -0.027,
          "percent_delta": -0.1079,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.2841,
          "delta": 0.0341,
          "percent_delta": 0.1362,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.2841,
          "delta": 0.0341,
          "percent_delta": 0.1362,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.1938,
          "delta": -0.0562,
          "percent_delta": -0.2248,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.088,
        "after": 0.0,
        "delta": -0.088,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.1,
        "after": 4.0,
        "delta": -0.1,
        "percent_delta": -0.0244,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.212,
        "after": 0.1938,
        "delta": -0.0182,
        "percent_delta": -0.0858,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.176,
        "after": 0.0,
        "delta": -0.176,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.87,
        "after": 0.0,
        "delta": -0.87,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.11,
        "after": 0.0,
        "delta": -0.11,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.25,
        "after": 0.223,
        "delta": -0.027,
        "percent_delta": -0.108,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.368,
        "after": 0.0,
        "delta": -0.368,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.34,
        "after": 0.0,
        "delta": -0.34,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.324,
        "after": 0.2841,
        "delta": -0.0399,
        "percent_delta": -0.1231,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.809,
        "after": 2.0,
        "delta": 1.191,
        "percent_delta": 1.4722,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 1,
      "deboosted_metrics": 10,
      "better_metrics": 0,
      "worse_metrics": 11,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.809,
        "after": 2.0,
        "delta": 1.191,
        "percent_delta": 1.4722,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.87,
        "after": 0.0,
        "delta": -0.87,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.088-
predicted_3B0.000-
predicted_AB4.100-
predicted_AVG0.212-
predicted_BB0.176-
predicted_H0.870-
predicted_HR0.110-
predicted_OBP0.250-
predicted_R0.368-
predicted_RBI0.340-
predicted_SLG0.324-
predicted_SO0.809-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.080-0.008
predicted_3B0.0000.000
predicted_AB4.070-0.030
predicted_AVG0.202-0.010
predicted_BB0.156-0.020
predicted_H0.825-0.045
predicted_HBP0.045-
predicted_HR0.100-0.010
predicted_OBP0.237-0.013
predicted_R0.357-0.011
predicted_RBI0.315-0.025
predicted_SLG0.302-0.022
predicted_SO0.8170.008
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.0800.000
predicted_3B0.0000.000
predicted_AB4.0700.000
predicted_AVG0.194-0.009
predicted_BB0.153-0.003
predicted_H0.789-0.036
predicted_HBP0.0450.000
predicted_HR0.096-0.005
predicted_OBP0.223-0.014
predicted_R0.330-0.027
predicted_RBI0.291-0.024
predicted_SLG0.284-0.018
predicted_SO0.8310.014
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.10), rates preserved: AVG=0.192 HR/AB=0.023

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=7.0, weight=0.076, BvP AVG=0.571)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.080
predicted_3B0.000-0.000
predicted_AB4.000-0.070
predicted_AVG0.2500.056
predicted_BB0.000-0.153
predicted_H1.0000.211
predicted_HR0.000-0.096
predicted_OBP0.2500.027
predicted_R0.000-0.330
predicted_RBI0.000-0.291
predicted_SLG0.250-0.034
predicted_SO1.0000.169
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 68
Reference playing time: 4.100
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-21.0003.0000.0000.0000.0000.0001.0000.0005.0000.14290.14290.14290.14290.00000.00000.00000.2381
last_100.2010-43.0007.0000.0000.0000.0001.0003.0000.0007.0000.16280.16280.16280.16280.00000.02330.00000.1628
season0.6068-266.00054.0006.0000.0009.00026.00025.00012.00055.0000.20300.24740.32710.20300.03380.09770.04510.2068
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0680
predicted_3B0.0010
predicted_AB4.0300
predicted_AVG0.1893
predicted_BB0.1280
predicted_H0.7630
predicted_HBP0.0450
predicted_HR0.0870
predicted_OBP0.2194
predicted_R0.3410
predicted_RBI0.2810
predicted_SLG0.2718
predicted_SO0.8290
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.08800.06800.0796model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.10004.03004.0704model_form_blend
predicted_AVG0.21200.18930.2024model_form_blend
predicted_BB0.17600.12800.1557model_form_blend
predicted_H0.87000.76300.8248model_form_blend
predicted_HBP-0.04500.0450form_only
predicted_HR0.11000.08700.1003model_form_blend
predicted_OBP0.25000.21940.2371model_form_blend
predicted_R0.36800.34100.3566model_form_blend
predicted_RBI0.34000.28100.3151model_form_blend
predicted_SLG0.32400.27180.3020model_form_blend
predicted_SO0.80900.82900.8174model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date237
Season rows before report date237
Report year2026
Profile rows used68
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO2
SF0
HBP0
season_avg0.203

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.2
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260617_KC@WAS
game_typefull
mlbID521692
playerID521692
playerNameSalvador Perez
posC
startedTrue
startingPositionDH
teamKC
teamID12
game_date2026-06-17
sl_k_percent19.2
sl_bb_percent4.1
sl_woba0.249
sl_xwoba0.282
sl_xba0.222
sl_xslg0.378
sl_sweet_spot_percent31.7
sl_barrel_batted_rate7.8
sl_hard_hit_percent39.9
sl_exit_velocity_avg88.5
sl_launch_angle_avg17.0
sl_whiff_percent25.3
sl_swing_percent57.7
Carter Jensen (695600) · BATTER · DH · Team KC
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 203
All-history rows before 20260618: 203
System season_avg: 0.2360
Data season_avg (2026 season-to-date): 0.2354
Diff (system - data): 0.0006
System opponent_avg: 0.2730

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2120.0000.000Hitting_2B0.1771.000-0.177-1.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.4204.0004.000Hitting_AB3.4534.0000.5470.000
predicted_AVG0.2580.0000.250Hitting_AVG0.2351.000-0.235-1.000
predicted_BB0.3480.0000.000Hitting_BB0.4241.000-0.424-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.8800.0001.000Hitting_H0.8134.000-0.813-4.000
predicted_HR0.1400.0000.000Hitting_HR0.1281.000-0.128-1.000
predicted_OBP0.3340.0000.250Hitting_OBP0.3181.000-0.318-1.000
predicted_R0.4700.0000.000Hitting_R0.4381.000-0.438-1.000
predicted_RBI0.5800.0001.000Hitting_RBI0.5521.000-0.552-1.000
predicted_SLG0.4520.0000.250Hitting_SLG0.3982.000-0.398-2.000
predicted_SO1.0762.0001.000Hitting_SO1.0940.0000.9062.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics2
Deboosted Metrics7
Better Metrics1
Worse Metrics8
Biggest Boostpredicted_SO: 1.0760 -> 2.0000 (boost 0.9240, worse)
Biggest Deboostpredicted_H: 0.8800 -> 0.0000 (deboost -0.8800, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend65160predicted_AB: 3.4200 -> 3.5319 (boost 0.1119, better)predicted_SO: 1.0760 -> 1.0119 (deboost -0.0641, better)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.4743 -> 0.4523 (deboost -0.0220, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling63333predicted_AB: 3.5319 -> 4.0000 (boost 0.4681, better)predicted_BB: 0.3344 -> 0.0000 (deboost -0.3344, worse)AB rounded to 4 (raw=3.53), rates preserved: AVG=0.259 HR/AB=0.040
5consistency_constraints10101-predicted_R: 0.4723 -> 0.0000 (deboost -0.4723, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.4523 -> 0.2500 (deboost -0.2023, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference31203predicted_SO: 1.0000 -> 2.0000 (boost 1.0000, worse)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2500 -> 0.4523 (boost 0.2023, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "695600",
  "player_name": "Carter Jensen",
  "position": "DH",
  "team": "KC",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.212,
        "predicted_3B": 0.0,
        "predicted_AB": 3.42,
        "predicted_AVG": 0.258,
        "predicted_BB": 0.348,
        "predicted_H": 0.88,
        "predicted_HR": 0.14,
        "predicted_OBP": 0.334,
        "predicted_R": 0.47,
        "predicted_RBI": 0.58,
        "predicted_SLG": 0.452,
        "predicted_SO": 1.076
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2577,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.5319,
        "predicted_AVG": 0.2711,
        "predicted_BB": 0.34,
        "predicted_H": 0.958,
        "predicted_HBP": 0.012,
        "predicted_HR": 0.1475,
        "predicted_OBP": 0.3381,
        "predicted_R": 0.5107,
        "predicted_RBI": 0.6374,
        "predicted_SLG": 0.4743,
        "predicted_SO": 1.0119
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.212,
          "after": 0.2577,
          "delta": 0.0457,
          "percent_delta": 0.2156,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.42,
          "after": 3.5319,
          "delta": 0.1119,
          "percent_delta": 0.0327,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.258,
          "after": 0.2711,
          "delta": 0.0131,
          "percent_delta": 0.0508,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.348,
          "after": 0.34,
          "delta": -0.008,
          "percent_delta": -0.023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.88,
          "after": 0.958,
          "delta": 0.078,
          "percent_delta": 0.0886,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.14,
          "after": 0.1475,
          "delta": 0.0075,
          "percent_delta": 0.0536,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.334,
          "after": 0.3381,
          "delta": 0.0041,
          "percent_delta": 0.0123,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.47,
          "after": 0.5107,
          "delta": 0.0407,
          "percent_delta": 0.0866,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.58,
          "after": 0.6374,
          "delta": 0.0574,
          "percent_delta": 0.099,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.452,
          "after": 0.4743,
          "delta": 0.0223,
          "percent_delta": 0.0493,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.076,
          "after": 1.0119,
          "delta": -0.0641,
          "percent_delta": -0.0596,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 5,
        "deboosted_metrics": 1,
        "better_metrics": 6,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.42,
          "after": 3.5319,
          "delta": 0.1119,
          "percent_delta": 0.0327,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.076,
          "after": 1.0119,
          "delta": -0.0641,
          "percent_delta": -0.0596,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 66
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2577,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.5319,
        "predicted_AVG": 0.2594,
        "predicted_BB": 0.3344,
        "predicted_H": 0.9162,
        "predicted_HBP": 0.012,
        "predicted_HR": 0.1407,
        "predicted_OBP": 0.3235,
        "predicted_R": 0.4723,
        "predicted_RBI": 0.5895,
        "predicted_SLG": 0.4523,
        "predicted_SO": 1.0287
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2577,
          "after": 0.2577,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.5319,
          "after": 3.5319,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2711,
          "after": 0.2594,
          "delta": -0.0117,
          "percent_delta": -0.0432,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.34,
          "after": 0.3344,
          "delta": -0.0056,
          "percent_delta": -0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.958,
          "after": 0.9162,
          "delta": -0.0418,
          "percent_delta": -0.0436,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.012,
          "after": 0.012,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1475,
          "after": 0.1407,
          "delta": -0.0068,
          "percent_delta": -0.0461,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3381,
          "after": 0.3235,
          "delta": -0.0146,
          "percent_delta": -0.0432,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5107,
          "after": 0.4723,
          "delta": -0.0384,
          "percent_delta": -0.0752,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6374,
          "after": 0.5895,
          "delta": -0.0479,
          "percent_delta": -0.0751,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4743,
          "after": 0.4523,
          "delta": -0.022,
          "percent_delta": -0.0464,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0119,
          "after": 1.0287,
          "delta": 0.0168,
          "percent_delta": 0.0166,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4743,
          "after": 0.4523,
          "delta": -0.022,
          "percent_delta": -0.0464,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.53), rates preserved: AVG=0.259 HR/AB=0.040",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2577,
          "after": 0.0,
          "delta": -0.2577,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.5319,
          "after": 4.0,
          "delta": 0.4681,
          "percent_delta": 0.1325,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3344,
          "after": 0.0,
          "delta": -0.3344,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9162,
          "after": 1.0,
          "delta": 0.0838,
          "percent_delta": 0.0915,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.012,
          "after": 0.0,
          "delta": -0.012,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1407,
          "after": 0.0,
          "delta": -0.1407,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5895,
          "after": 1.0,
          "delta": 0.4105,
          "percent_delta": 0.6964,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0287,
          "after": 1.0,
          "delta": -0.0287,
          "percent_delta": -0.0279,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 3,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.5319,
          "after": 4.0,
          "delta": 0.4681,
          "percent_delta": 0.1325,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3344,
          "after": 0.0,
          "delta": -0.3344,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4723,
          "after": 0.0,
          "delta": -0.4723,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4723,
          "after": 0.0,
          "delta": -0.4723,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2594,
          "after": 0.25,
          "delta": -0.0094,
          "percent_delta": -0.0362,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3235,
          "after": 0.25,
          "delta": -0.0735,
          "percent_delta": -0.2272,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4523,
          "after": 0.25,
          "delta": -0.2023,
          "percent_delta": -0.4473,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4523,
          "after": 0.25,
          "delta": -0.2023,
          "percent_delta": -0.4473,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2594,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3235,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4523,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2594,
          "delta": 0.0094,
          "percent_delta": 0.0377,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3235,
          "delta": 0.0735,
          "percent_delta": 0.2938,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4523,
          "delta": 0.2023,
          "percent_delta": 0.8093,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4523,
          "delta": 0.2023,
          "percent_delta": 0.8093,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.212,
        "after": 0.0,
        "delta": -0.212,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.42,
        "after": 4.0,
        "delta": 0.58,
        "percent_delta": 0.1696,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.258,
        "after": 0.2594,
        "delta": 0.0014,
        "percent_delta": 0.0054,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.348,
        "after": 0.0,
        "delta": -0.348,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.88,
        "after": 0.0,
        "delta": -0.88,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.14,
        "after": 0.0,
        "delta": -0.14,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.334,
        "after": 0.3235,
        "delta": -0.0105,
        "percent_delta": -0.0314,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.47,
        "after": 0.0,
        "delta": -0.47,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.58,
        "after": 0.0,
        "delta": -0.58,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.452,
        "after": 0.4523,
        "delta": 0.0003,
        "percent_delta": 0.0007,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.076,
        "after": 2.0,
        "delta": 0.924,
        "percent_delta": 0.8587,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 2,
      "deboosted_metrics": 7,
      "better_metrics": 1,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 1.076,
        "after": 2.0,
        "delta": 0.924,
        "percent_delta": 0.8587,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.88,
        "after": 0.0,
        "delta": -0.88,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.212-
predicted_3B0.000-
predicted_AB3.420-
predicted_AVG0.258-
predicted_BB0.348-
predicted_H0.880-
predicted_HR0.140-
predicted_OBP0.334-
predicted_R0.470-
predicted_RBI0.580-
predicted_SLG0.452-
predicted_SO1.076-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2580.046
predicted_3B0.0010.001
predicted_AB3.5320.112
predicted_AVG0.2710.013
predicted_BB0.340-0.008
predicted_H0.9580.078
predicted_HBP0.012-
predicted_HR0.1470.007
predicted_OBP0.3380.004
predicted_R0.5110.041
predicted_RBI0.6370.057
predicted_SLG0.4740.022
predicted_SO1.012-0.064
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2580.000
predicted_3B0.0010.000
predicted_AB3.5320.000
predicted_AVG0.259-0.012
predicted_BB0.334-0.006
predicted_H0.916-0.042
predicted_HBP0.0120.000
predicted_HR0.141-0.007
predicted_OBP0.324-0.015
predicted_R0.472-0.038
predicted_RBI0.590-0.048
predicted_SLG0.452-0.022
predicted_SO1.0290.017
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.53), rates preserved: AVG=0.259 HR/AB=0.040

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.258
predicted_3B0.000-0.001
predicted_AB4.0000.468
predicted_AVG0.250-0.009
predicted_BB0.000-0.334
predicted_H1.0000.084
predicted_HR0.000-0.141
predicted_OBP0.250-0.074
predicted_R0.000-0.472
predicted_RBI1.0000.410
predicted_SLG0.250-0.202
predicted_SO1.000-0.029
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 66
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-21.0009.0003.0000.0001.0006.0004.0002.0003.0000.42860.47830.71430.42860.04760.28570.09520.1429
last_100.2010-39.00013.0005.0000.0002.0009.0007.0002.0007.0000.33330.34880.61540.33330.05130.23080.05130.1795
season0.6066-225.00053.00014.0000.0009.00037.00031.00023.00071.0000.23560.30310.41780.23560.04000.16440.10220.3156
Weighted Prediction From Real Data
MetricValue
predicted_2B0.3210
predicted_3B0.0020
predicted_AB3.6870
predicted_AVG0.2892
predicted_BB0.3290
predicted_H1.0660
predicted_HBP0.0120
predicted_HR0.1580
predicted_OBP0.3437
predicted_R0.5670
predicted_RBI0.7170
predicted_SLG0.5053
predicted_SO0.9230
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.21200.32100.2577model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB3.42003.68703.5319model_form_blend
predicted_AVG0.25800.28920.2711model_form_blend
predicted_BB0.34800.32900.3400model_form_blend
predicted_H0.88001.06600.9580model_form_blend
predicted_HBP-0.01200.0120form_only
predicted_HR0.14000.15800.1475model_form_blend
predicted_OBP0.33400.34370.3381model_form_blend
predicted_R0.47000.56700.5107model_form_blend
predicted_RBI0.58000.71700.6374model_form_blend
predicted_SLG0.45200.50530.4743model_form_blend
predicted_SO1.07600.92301.0119model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date203
Season rows before report date203
Report year2026
Profile rows used66
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO2
SF0
HBP0
season_avg0.236

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB1
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball1
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB4
Hitting_AVG1.0
Hitting_BB1
Hitting_GIDP0
Hitting_H4
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R1
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB8
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedC
gameID20260617_KC@WAS
game_typefull
mlbID695600
playerID695600
playerNameCarter Jensen
posC
startedTrue
startingPositionC
teamKC
teamID12
game_date2026-06-17
sl_k_percent28.2
sl_bb_percent9.0
sl_woba0.312
sl_xwoba0.282
sl_xba0.211
sl_xslg0.353
sl_sweet_spot_percent30.2
sl_barrel_batted_rate8.9
sl_hard_hit_percent43.4
sl_exit_velocity_avg90.8
sl_launch_angle_avg19.9
sl_whiff_percent30.8
sl_swing_percent44.8
Nick Loftin (679845) · BATTER · 3B · Team KC
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 86
All-history rows before 20260618: 86
System season_avg: 0.2380
Data season_avg (2026 season-to-date): 0.2209
Diff (system - data): 0.0171
System opponent_avg: 0.2380
System season_avg diverges from 2026 season-to-date by 0.0171. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2701.0000.000Hitting_2B0.2560.0000.7441.000
predicted_3B0.0270.0000.000Hitting_3B0.0120.000-0.0120.000
predicted_AB2.8383.0003.000Hitting_AB2.8953.0000.1050.000
predicted_AVG0.2650.3330.333Hitting_AVG0.2210.0000.1120.333
predicted_BB0.4051.0000.000Hitting_BB0.4191.0000.5810.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.7101.0001.000Hitting_H0.6400.0000.3601.000
predicted_HR0.0700.0000.000Hitting_HR0.0120.000-0.0120.000
predicted_OBP0.3360.5000.333Hitting_OBP0.3320.2500.1680.250
predicted_R0.3780.0000.000Hitting_R0.4770.000-0.4770.000
predicted_RBI0.3800.0000.000Hitting_RBI0.6050.000-0.6050.000
predicted_SLG0.4080.6670.333Hitting_SLG0.3290.0000.3370.667
predicted_SO0.4320.0000.000Hitting_SO0.3600.000-0.3600.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics10
Boosted Metrics5
Deboosted Metrics5
Better Metrics6
Worse Metrics4
Biggest Boostpredicted_2B: 0.2700 -> 1.0000 (boost 0.7300, better)
Biggest Deboostpredicted_SO: 0.4320 -> 0.0000 (deboost -0.4320, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend22020predicted_AB: 2.8380 -> 2.9304 (boost 0.0924, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_AVG: 0.2617 -> 0.2417 (deboost -0.0200, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72534predicted_H: 0.7084 -> 1.0000 (boost 0.2916, better)predicted_SO: 0.4696 -> 0.0000 (deboost -0.4696, better)AB rounded to 3 (raw=2.93), rates preserved: AVG=0.242 HR/AB=0.020
5consistency_constraints10101-predicted_R: 0.3238 -> 0.0000 (deboost -0.3238, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context21111predicted_AVG: 0.2417 -> 0.3330 (boost 0.0913, better)predicted_SLG: 0.4169 -> 0.3330 (deboost -0.0839, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference22020predicted_2B: 0.0000 -> 1.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final21111predicted_SLG: 0.3330 -> 0.4169 (boost 0.0839, better)predicted_AVG: 0.3330 -> 0.2417 (deboost -0.0913, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "679845",
  "player_name": "Nick Loftin",
  "position": "3B",
  "team": "KC",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.27,
        "predicted_3B": 0.027,
        "predicted_AB": 2.838,
        "predicted_AVG": 0.265,
        "predicted_BB": 0.405,
        "predicted_H": 0.71,
        "predicted_HR": 0.07,
        "predicted_OBP": 0.336,
        "predicted_R": 0.378,
        "predicted_RBI": 0.38,
        "predicted_SLG": 0.408,
        "predicted_SO": 0.432
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2775,
        "predicted_3B": 0.029,
        "predicted_AB": 2.9304,
        "predicted_AVG": 0.2617,
        "predicted_BB": 0.4066,
        "predicted_H": 0.7407,
        "predicted_HBP": 0.034,
        "predicted_HR": 0.0621,
        "predicted_OBP": 0.3401,
        "predicted_R": 0.3501,
        "predicted_RBI": 0.3867,
        "predicted_SLG": 0.4132,
        "predicted_SO": 0.4619
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.27,
          "after": 0.2775,
          "delta": 0.0075,
          "percent_delta": 0.0278,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.027,
          "after": 0.029,
          "delta": 0.002,
          "percent_delta": 0.0741,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.838,
          "after": 2.9304,
          "delta": 0.0924,
          "percent_delta": 0.0326,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.265,
          "after": 0.2617,
          "delta": -0.0033,
          "percent_delta": -0.0125,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.405,
          "after": 0.4066,
          "delta": 0.0016,
          "percent_delta": 0.004,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.71,
          "after": 0.7407,
          "delta": 0.0307,
          "percent_delta": 0.0432,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.07,
          "after": 0.0621,
          "delta": -0.0079,
          "percent_delta": -0.1129,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.336,
          "after": 0.3401,
          "delta": 0.0041,
          "percent_delta": 0.0122,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.378,
          "after": 0.3501,
          "delta": -0.0279,
          "percent_delta": -0.0738,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.38,
          "after": 0.3867,
          "delta": 0.0067,
          "percent_delta": 0.0176,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.408,
          "after": 0.4132,
          "delta": 0.0052,
          "percent_delta": 0.0127,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.432,
          "after": 0.4619,
          "delta": 0.0299,
          "percent_delta": 0.0692,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.838,
          "after": 2.9304,
          "delta": 0.0924,
          "percent_delta": 0.0326,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 37
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2775,
        "predicted_3B": 0.029,
        "predicted_AB": 2.9304,
        "predicted_AVG": 0.2417,
        "predicted_BB": 0.3999,
        "predicted_H": 0.7084,
        "predicted_HBP": 0.034,
        "predicted_HR": 0.0592,
        "predicted_OBP": 0.3328,
        "predicted_R": 0.3238,
        "predicted_RBI": 0.3577,
        "predicted_SLG": 0.4169,
        "predicted_SO": 0.4696
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2775,
          "after": 0.2775,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.029,
          "after": 0.029,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9304,
          "after": 2.9304,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2617,
          "after": 0.2417,
          "delta": -0.02,
          "percent_delta": -0.0764,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4066,
          "after": 0.3999,
          "delta": -0.0067,
          "percent_delta": -0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7407,
          "after": 0.7084,
          "delta": -0.0323,
          "percent_delta": -0.0436,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.034,
          "after": 0.034,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0621,
          "after": 0.0592,
          "delta": -0.0029,
          "percent_delta": -0.0467,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3401,
          "after": 0.3328,
          "delta": -0.0073,
          "percent_delta": -0.0215,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3501,
          "after": 0.3238,
          "delta": -0.0263,
          "percent_delta": -0.0751,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3867,
          "after": 0.3577,
          "delta": -0.029,
          "percent_delta": -0.075,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4132,
          "after": 0.4169,
          "delta": 0.0037,
          "percent_delta": 0.009,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.4619,
          "after": 0.4696,
          "delta": 0.0077,
          "percent_delta": 0.0167,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2617,
          "after": 0.2417,
          "delta": -0.02,
          "percent_delta": -0.0764,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.93), rates preserved: AVG=0.242 HR/AB=0.020",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2775,
          "after": 0.0,
          "delta": -0.2775,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.029,
          "after": 0.0,
          "delta": -0.029,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9304,
          "after": 3.0,
          "delta": 0.0696,
          "percent_delta": 0.0238,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3999,
          "after": 0.0,
          "delta": -0.3999,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7084,
          "after": 1.0,
          "delta": 0.2916,
          "percent_delta": 0.4116,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.034,
          "after": 0.0,
          "delta": -0.034,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0592,
          "after": 0.0,
          "delta": -0.0592,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3577,
          "after": 0.0,
          "delta": -0.3577,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.4696,
          "after": 0.0,
          "delta": -0.4696,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 3,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.7084,
          "after": 1.0,
          "delta": 0.2916,
          "percent_delta": 0.4116,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 0.4696,
          "after": 0.0,
          "delta": -0.4696,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3238,
          "after": 0.0,
          "delta": -0.3238,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3238,
          "after": 0.0,
          "delta": -0.3238,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2417,
          "after": 0.333,
          "delta": 0.0913,
          "percent_delta": 0.3777,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3328,
          "after": 0.333,
          "delta": 0.0002,
          "percent_delta": 0.0006,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4169,
          "after": 0.333,
          "delta": -0.0839,
          "percent_delta": -0.2012,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2417,
          "after": 0.333,
          "delta": 0.0913,
          "percent_delta": 0.3777,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4169,
          "after": 0.333,
          "delta": -0.0839,
          "percent_delta": -0.2012,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2417,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3328,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4169,
        "predicted_SO": 0.0,
        "predicted_TB": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2417,
          "delta": -0.0913,
          "percent_delta": -0.274,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3328,
          "delta": -0.0002,
          "percent_delta": -0.0006,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4169,
          "delta": 0.0839,
          "percent_delta": 0.2518,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4169,
          "delta": 0.0839,
          "percent_delta": 0.2518,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2417,
          "delta": -0.0913,
          "percent_delta": -0.274,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.27,
        "after": 1.0,
        "delta": 0.73,
        "percent_delta": 2.7037,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.027,
        "after": 0.0,
        "delta": -0.027,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.838,
        "after": 3.0,
        "delta": 0.162,
        "percent_delta": 0.0571,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.265,
        "after": 0.2417,
        "delta": -0.0233,
        "percent_delta": -0.0879,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.405,
        "after": 1.0,
        "delta": 0.595,
        "percent_delta": 1.4691,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.71,
        "after": 1.0,
        "delta": 0.29,
        "percent_delta": 0.4085,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.07,
        "after": 0.0,
        "delta": -0.07,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.336,
        "after": 0.3328,
        "delta": -0.0032,
        "percent_delta": -0.0095,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.378,
        "after": 0.0,
        "delta": -0.378,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.38,
        "after": 0.0,
        "delta": -0.38,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.408,
        "after": 0.4169,
        "delta": 0.0089,
        "percent_delta": 0.0218,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.432,
        "after": 0.0,
        "delta": -0.432,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 5,
      "deboosted_metrics": 5,
      "better_metrics": 6,
      "worse_metrics": 4,
      "biggest_boost": {
        "metric": "predicted_2B",
        "before": 0.27,
        "after": 1.0,
        "delta": 0.73,
        "percent_delta": 2.7037,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.432,
        "after": 0.0,
        "delta": -0.432,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.270-
predicted_3B0.027-
predicted_AB2.838-
predicted_AVG0.265-
predicted_BB0.405-
predicted_H0.710-
predicted_HR0.070-
predicted_OBP0.336-
predicted_R0.378-
predicted_RBI0.380-
predicted_SLG0.408-
predicted_SO0.432-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2780.008
predicted_3B0.0290.002
predicted_AB2.9300.092
predicted_AVG0.262-0.003
predicted_BB0.4070.002
predicted_H0.7410.031
predicted_HBP0.034-
predicted_HR0.062-0.008
predicted_OBP0.3400.004
predicted_R0.350-0.028
predicted_RBI0.3870.007
predicted_SLG0.4130.005
predicted_SO0.4620.030
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2780.000
predicted_3B0.0290.000
predicted_AB2.9300.000
predicted_AVG0.242-0.020
predicted_BB0.400-0.007
predicted_H0.708-0.032
predicted_HBP0.0340.000
predicted_HR0.059-0.003
predicted_OBP0.333-0.007
predicted_R0.324-0.026
predicted_RBI0.358-0.029
predicted_SLG0.4170.004
predicted_SO0.4700.008
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.93), rates preserved: AVG=0.242 HR/AB=0.020

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO0.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO0.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.278
predicted_3B0.000-0.029
predicted_AB3.0000.070
predicted_AVG0.3330.091
predicted_BB0.000-0.400
predicted_H1.0000.292
predicted_HR0.000-0.059
predicted_OBP0.3330.000
predicted_R0.000-0.324
predicted_RBI0.000-0.358
predicted_SLG0.333-0.084
predicted_SO0.000-0.470
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 37
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-14.0004.0002.0000.0000.0000.0000.0002.0002.0000.28570.37500.42860.28570.00000.00000.14290.1429
last_100.2010-31.0009.0003.0001.0001.0004.0002.0005.0005.0000.29030.38890.54840.29030.03230.12900.16130.1613
season0.6037-105.00025.00010.0001.0001.00018.00014.00015.00016.0000.23810.33600.38100.23810.00950.17140.14290.1524
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2890
predicted_3B0.0320
predicted_AB3.0730
predicted_AVG0.2566
predicted_BB0.4090
predicted_H0.7880
predicted_HBP0.0340
predicted_HR0.0500
predicted_OBP0.3465
predicted_R0.3070
predicted_RBI0.3970
predicted_SLG0.4212
predicted_SO0.5080
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.27000.28900.2775model_form_blend
predicted_3B0.02700.03200.0290model_form_blend
predicted_AB2.83803.07302.9304model_form_blend
predicted_AVG0.26500.25660.2617model_form_blend
predicted_BB0.40500.40900.4066model_form_blend
predicted_H0.71000.78800.7407model_form_blend
predicted_HBP-0.03400.0340form_only
predicted_HR0.07000.05000.0621model_form_blend
predicted_OBP0.33600.34650.3401model_form_blend
predicted_R0.37800.30700.3501model_form_blend
predicted_RBI0.38000.39700.3867model_form_blend
predicted_SLG0.40800.42120.4132model_form_blend
predicted_SO0.43200.50800.4619model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date86
Season rows before report date86
Report year2026
Profile rows used37
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B1
3B0
HR0
R0
RBI0
BB1
SO0
SF0
HBP0
season_avg0.238

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.0
Hitting_BB1
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder8
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260617_KC@WAS
game_typefull
mlbID679845
playerID679845
playerNameNick Loftin
pos2B
startedTrue
startingPosition3B
teamKC
teamID12
game_date2026-06-17
sl_k_percent12.5
sl_bb_percent12.5
sl_woba0.325
sl_xwoba0.321
sl_xba0.242
sl_xslg0.35
sl_sweet_spot_percent34.4
sl_barrel_batted_rate5.4
sl_hard_hit_percent33.3
sl_exit_velocity_avg86.9
sl_launch_angle_avg12.7
sl_whiff_percent15.0
sl_swing_percent39.5
Isaac Collins (686555) · BATTER · LF · Team KC
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 198
All-history rows before 20260618: 198
System season_avg: 0.2160
Data season_avg (2026 season-to-date): 0.2231
Diff (system - data): -0.0071
System opponent_avg: 0.1510

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1270.0000.000Hitting_2B0.1310.000-0.1310.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.1593.0003.000Hitting_AB3.2373.000-0.2370.000
predicted_AVG0.2390.3330.333Hitting_AVG0.2230.3330.1100.000
predicted_BB0.5081.0000.000Hitting_BB0.5610.0000.4391.000
predicted_CS-0.0000.000BaseRunning_CS0.0710.000-0.0710.000
predicted_H0.6801.0001.000Hitting_H0.7221.0000.2780.000
predicted_HR0.0701.0000.000Hitting_HR0.0560.0000.9441.000
predicted_OBP0.3140.5000.333Hitting_OBP0.3500.3330.1500.167
predicted_R0.3971.0000.000Hitting_R0.4341.0000.5660.000
predicted_RBI0.3901.0000.000Hitting_RBI0.3791.0000.6210.000
predicted_SLG0.3191.3330.333Hitting_SLG0.3150.3331.0181.000
predicted_SO0.9520.0001.000Hitting_SO1.0300.000-1.0300.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics11
Boosted Metrics5
Deboosted Metrics6
Better Metrics6
Worse Metrics5
Biggest Boostpredicted_HR: 0.0700 -> 1.0000 (boost 0.9300, better)
Biggest Deboostpredicted_SO: 0.9520 -> 0.0000 (deboost -0.9520, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend30312-predicted_SO: 0.9520 -> 0.8702 (deboost -0.0818, better)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_AVG: 0.2297 -> 0.2065 (deboost -0.0232, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling82617predicted_H: 0.6511 -> 1.0000 (boost 0.3489, better)predicted_BB: 0.4520 -> 0.0000 (deboost -0.4520, worse)AB rounded to 3 (raw=3.16), rates preserved: AVG=0.206 HR/AB=0.017
5consistency_constraints10101-predicted_R: 0.3652 -> 0.0000 (deboost -0.3652, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.2065 -> 0.3330 (boost 0.1265, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference54150predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.2065 (deboost -0.1265, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "686555",
  "player_name": "Isaac Collins",
  "position": "LF",
  "team": "KC",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.127,
        "predicted_3B": 0.0,
        "predicted_AB": 3.159,
        "predicted_AVG": 0.239,
        "predicted_BB": 0.508,
        "predicted_H": 0.68,
        "predicted_HR": 0.07,
        "predicted_OBP": 0.314,
        "predicted_R": 0.397,
        "predicted_RBI": 0.39,
        "predicted_SLG": 0.319,
        "predicted_SO": 0.952
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.117,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.1536,
        "predicted_AVG": 0.2297,
        "predicted_BB": 0.4596,
        "predicted_H": 0.6808,
        "predicted_HBP": 0.064,
        "predicted_HR": 0.0562,
        "predicted_OBP": 0.3139,
        "predicted_R": 0.3949,
        "predicted_RBI": 0.3979,
        "predicted_SLG": 0.3052,
        "predicted_SO": 0.8702
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.127,
          "after": 0.117,
          "delta": -0.01,
          "percent_delta": -0.0787,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.159,
          "after": 3.1536,
          "delta": -0.0054,
          "percent_delta": -0.0017,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.239,
          "after": 0.2297,
          "delta": -0.0093,
          "percent_delta": -0.0389,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.508,
          "after": 0.4596,
          "delta": -0.0484,
          "percent_delta": -0.0953,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.68,
          "after": 0.6808,
          "delta": 0.0008,
          "percent_delta": 0.0012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.07,
          "after": 0.0562,
          "delta": -0.0138,
          "percent_delta": -0.1971,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.314,
          "after": 0.3139,
          "delta": -0.0001,
          "percent_delta": -0.0003,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.397,
          "after": 0.3949,
          "delta": -0.0021,
          "percent_delta": -0.0053,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.39,
          "after": 0.3979,
          "delta": 0.0079,
          "percent_delta": 0.0203,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.319,
          "after": 0.3052,
          "delta": -0.0138,
          "percent_delta": -0.0433,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.952,
          "after": 0.8702,
          "delta": -0.0818,
          "percent_delta": -0.0859,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 0.952,
          "after": 0.8702,
          "delta": -0.0818,
          "percent_delta": -0.0859,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 63
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.117,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.1536,
        "predicted_AVG": 0.2065,
        "predicted_BB": 0.452,
        "predicted_H": 0.6511,
        "predicted_HBP": 0.064,
        "predicted_HR": 0.0536,
        "predicted_OBP": 0.3059,
        "predicted_R": 0.3652,
        "predicted_RBI": 0.368,
        "predicted_SLG": 0.2948,
        "predicted_SO": 0.8846
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.117,
          "after": 0.117,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.1536,
          "after": 3.1536,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2297,
          "after": 0.2065,
          "delta": -0.0232,
          "percent_delta": -0.101,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4596,
          "after": 0.452,
          "delta": -0.0076,
          "percent_delta": -0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6808,
          "after": 0.6511,
          "delta": -0.0297,
          "percent_delta": -0.0436,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.064,
          "after": 0.064,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0562,
          "after": 0.0536,
          "delta": -0.0026,
          "percent_delta": -0.0463,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3139,
          "after": 0.3059,
          "delta": -0.008,
          "percent_delta": -0.0255,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3949,
          "after": 0.3652,
          "delta": -0.0297,
          "percent_delta": -0.0752,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3979,
          "after": 0.368,
          "delta": -0.0299,
          "percent_delta": -0.0751,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3052,
          "after": 0.2948,
          "delta": -0.0104,
          "percent_delta": -0.0341,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8702,
          "after": 0.8846,
          "delta": 0.0144,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2297,
          "after": 0.2065,
          "delta": -0.0232,
          "percent_delta": -0.101,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.16), rates preserved: AVG=0.206 HR/AB=0.017",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.117,
          "after": 0.0,
          "delta": -0.117,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.1536,
          "after": 3.0,
          "delta": -0.1536,
          "percent_delta": -0.0487,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.452,
          "after": 0.0,
          "delta": -0.452,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6511,
          "after": 1.0,
          "delta": 0.3489,
          "percent_delta": 0.5359,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.064,
          "after": 0.0,
          "delta": -0.064,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0536,
          "after": 0.0,
          "delta": -0.0536,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.368,
          "after": 0.0,
          "delta": -0.368,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8846,
          "after": 1.0,
          "delta": 0.1154,
          "percent_delta": 0.1305,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 2,
        "deboosted_metrics": 6,
        "better_metrics": 1,
        "worse_metrics": 7,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.6511,
          "after": 1.0,
          "delta": 0.3489,
          "percent_delta": 0.5359,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.452,
          "after": 0.0,
          "delta": -0.452,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3652,
          "after": 0.0,
          "delta": -0.3652,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3652,
          "after": 0.0,
          "delta": -0.3652,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2065,
          "after": 0.333,
          "delta": 0.1265,
          "percent_delta": 0.6126,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3059,
          "after": 0.333,
          "delta": 0.0271,
          "percent_delta": 0.0886,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2948,
          "after": 0.333,
          "delta": 0.0382,
          "percent_delta": 0.1296,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2065,
          "after": 0.333,
          "delta": 0.1265,
          "percent_delta": 0.6126,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 4,
        "deboosted_metrics": 1,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2065,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_LF": 0.0,
        "predicted_OBP": 0.3059,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.2948,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2065,
          "delta": -0.1265,
          "percent_delta": -0.38,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3059,
          "delta": -0.0271,
          "percent_delta": -0.0813,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.2948,
          "delta": -0.0382,
          "percent_delta": -0.1147,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2065,
          "delta": -0.1265,
          "percent_delta": -0.38,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.127,
        "after": 0.0,
        "delta": -0.127,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.159,
        "after": 3.0,
        "delta": -0.159,
        "percent_delta": -0.0503,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.239,
        "after": 0.2065,
        "delta": -0.0325,
        "percent_delta": -0.136,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.508,
        "after": 1.0,
        "delta": 0.492,
        "percent_delta": 0.9685,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.68,
        "after": 1.0,
        "delta": 0.32,
        "percent_delta": 0.4706,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.07,
        "after": 1.0,
        "delta": 0.93,
        "percent_delta": 13.2857,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.314,
        "after": 0.3059,
        "delta": -0.0081,
        "percent_delta": -0.0258,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.397,
        "after": 1.0,
        "delta": 0.603,
        "percent_delta": 1.5189,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.39,
        "after": 1.0,
        "delta": 0.61,
        "percent_delta": 1.5641,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.319,
        "after": 0.2948,
        "delta": -0.0242,
        "percent_delta": -0.0759,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.952,
        "after": 0.0,
        "delta": -0.952,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 5,
      "deboosted_metrics": 6,
      "better_metrics": 6,
      "worse_metrics": 5,
      "biggest_boost": {
        "metric": "predicted_HR",
        "before": 0.07,
        "after": 1.0,
        "delta": 0.93,
        "percent_delta": 13.2857,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.952,
        "after": 0.0,
        "delta": -0.952,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.127-
predicted_3B0.000-
predicted_AB3.159-
predicted_AVG0.239-
predicted_BB0.508-
predicted_H0.680-
predicted_HR0.070-
predicted_OBP0.314-
predicted_R0.397-
predicted_RBI0.390-
predicted_SLG0.319-
predicted_SO0.952-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.117-0.010
predicted_3B0.0000.000
predicted_AB3.154-0.005
predicted_AVG0.230-0.009
predicted_BB0.460-0.048
predicted_H0.6810.001
predicted_HBP0.064-
predicted_HR0.056-0.014
predicted_OBP0.314-0.000
predicted_R0.395-0.002
predicted_RBI0.3980.008
predicted_SLG0.305-0.014
predicted_SO0.870-0.082
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1170.000
predicted_3B0.0000.000
predicted_AB3.1540.000
predicted_AVG0.206-0.023
predicted_BB0.452-0.008
predicted_H0.651-0.030
predicted_HBP0.0640.000
predicted_HR0.054-0.003
predicted_OBP0.306-0.008
predicted_R0.365-0.030
predicted_RBI0.368-0.030
predicted_SLG0.295-0.010
predicted_SO0.8850.014
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.16), rates preserved: AVG=0.206 HR/AB=0.017

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.117
predicted_3B0.000-0.000
predicted_AB3.000-0.154
predicted_AVG0.3330.127
predicted_BB0.000-0.452
predicted_H1.0000.349
predicted_HR0.000-0.054
predicted_OBP0.3330.027
predicted_R0.000-0.365
predicted_RBI0.000-0.368
predicted_SLG0.3330.038
predicted_SO1.0000.115
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR1.0001.000
PA4.000-
R1.0001.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 63
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-14.0003.0000.0000.0000.0003.0002.0001.0002.0000.21430.26670.21430.21430.00000.21430.07140.1429
last_100.2010-30.0006.0001.0000.0000.0004.0003.0003.0005.0000.20000.29410.23330.20000.00000.13330.10000.1667
season0.6063-199.00043.0008.0000.0003.00020.00025.00032.00060.0000.21610.33610.30150.21610.01510.10050.16080.3015
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1030
predicted_3B0.0010
predicted_AB3.1460
predicted_AVG0.2168
predicted_BB0.3920
predicted_H0.6820
predicted_HBP0.0640
predicted_HR0.0370
predicted_OBP0.3138
predicted_R0.3920
predicted_RBI0.4090
predicted_SLG0.2860
predicted_SO0.7560
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.12700.10300.1170model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB3.15903.14603.1536model_form_blend
predicted_AVG0.23900.21680.2297model_form_blend
predicted_BB0.50800.39200.4596model_form_blend
predicted_H0.68000.68200.6808model_form_blend
predicted_HBP-0.06400.0640form_only
predicted_HR0.07000.03700.0562model_form_blend
predicted_OBP0.31400.31380.3139model_form_blend
predicted_R0.39700.39200.3949model_form_blend
predicted_RBI0.39000.40900.3979model_form_blend
predicted_SLG0.31900.28600.3052model_form_blend
predicted_SO0.95200.75600.8702model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date198
Season rows before report date198
Report year2026
Profile rows used63
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B0
3B0
HR1
R1
RBI1
BB1
SO0
SF0
HBP0
season_avg0.216

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R1
Hitting_RBI1
Hitting_SAC1
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder9
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedLF
gameID20260617_KC@WAS
game_typefull
mlbID686555
playerID686555
playerNameIsaac Collins
posLF
startedTrue
startingPositionLF
teamKC
teamID12
game_date2026-06-17
sl_k_percent24.9
sl_bb_percent13.1
sl_woba0.297
sl_xwoba0.308
sl_xba0.226
sl_xslg0.315
sl_sweet_spot_percent32.0
sl_barrel_batted_rate6.8
sl_hard_hit_percent39.5
sl_exit_velocity_avg88.5
sl_launch_angle_avg18.7
sl_whiff_percent24.9
sl_swing_percent39.2
Michael Massey (686681) · BATTER · 2B · Team KC
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 133
All-history rows before 20260618: 133
System season_avg: 0.2610
Data season_avg (2026 season-to-date): 0.2440
Diff (system - data): 0.0170
System opponent_avg: 0.3040
System season_avg diverges from 2026 season-to-date by 0.0170. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2220.0000.000Hitting_2B0.2480.000-0.2480.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.9813.0003.000Hitting_AB3.1134.000-0.113-1.000
predicted_AVG0.2490.0000.333Hitting_AVG0.2440.250-0.244-0.250
predicted_BB0.0931.0000.000Hitting_BB0.0900.0000.9101.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.2600.0001.000Hitting_H0.7591.000-0.759-1.000
predicted_HR0.0500.0000.000Hitting_HR0.1051.000-0.105-1.000
predicted_OBP0.2680.2500.333Hitting_OBP0.2590.250-0.0090.000
predicted_R0.3700.0000.000Hitting_R0.3461.000-0.346-1.000
predicted_RBI0.1800.0000.000Hitting_RBI0.4291.000-0.429-1.000
predicted_SB-0.0000.000BaseRunning_SB0.0300.000-0.0300.000
predicted_SLG0.4350.0000.333Hitting_SLG0.4251.000-0.425-1.000
predicted_SO0.5561.0001.000Hitting_SO0.5860.0000.4141.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics2
Deboosted Metrics8
Better Metrics1
Worse Metrics9
Biggest Boostpredicted_BB: 0.0930 -> 1.0000 (boost 0.9070, better)
Biggest Deboostpredicted_R: 0.3700 -> 0.0000 (deboost -0.3700, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend66060predicted_H: 0.2600 -> 0.4991 (boost 0.2391, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.4522 -> 0.3134 (deboost -0.1388, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71607predicted_SO: 0.5540 -> 1.0000 (boost 0.4460, worse)predicted_H: 0.4773 -> 0.0000 (deboost -0.4773, worse)AB rounded to 3 (raw=3.07), rates preserved: AVG=0.155 HR/AB=0.027
5bvp_blend11010predicted_H: 0.0000 -> 1.0000 (boost 1.0000, better)-Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.333)
6consistency_constraints10101-predicted_R: 0.3790 -> 0.0000 (deboost -0.3790, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context33030predicted_AVG: 0.1554 -> 0.3330 (boost 0.1776, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference21111predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final30303-predicted_AVG: 0.3330 -> 0.1554 (deboost -0.1776, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "686681",
  "player_name": "Michael Massey",
  "position": "2B",
  "team": "KC",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.222,
        "predicted_3B": 0.0,
        "predicted_AB": 2.981,
        "predicted_AVG": 0.249,
        "predicted_BB": 0.093,
        "predicted_H": 0.26,
        "predicted_HR": 0.05,
        "predicted_OBP": 0.268,
        "predicted_R": 0.37,
        "predicted_RBI": 0.18,
        "predicted_SLG": 0.435,
        "predicted_SO": 0.556
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2386,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.0723,
        "predicted_AVG": 0.2555,
        "predicted_BB": 0.091,
        "predicted_H": 0.4991,
        "predicted_HBP": 0.004,
        "predicted_HR": 0.0857,
        "predicted_OBP": 0.2742,
        "predicted_R": 0.4098,
        "predicted_RBI": 0.3135,
        "predicted_SLG": 0.4522,
        "predicted_SO": 0.545
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.222,
          "after": 0.2386,
          "delta": 0.0166,
          "percent_delta": 0.0748,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.981,
          "after": 3.0723,
          "delta": 0.0913,
          "percent_delta": 0.0306,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.249,
          "after": 0.2555,
          "delta": 0.0065,
          "percent_delta": 0.0261,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.093,
          "after": 0.091,
          "delta": -0.002,
          "percent_delta": -0.0215,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.26,
          "after": 0.4991,
          "delta": 0.2391,
          "percent_delta": 0.9196,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.05,
          "after": 0.0857,
          "delta": 0.0357,
          "percent_delta": 0.714,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.268,
          "after": 0.2742,
          "delta": 0.0062,
          "percent_delta": 0.0231,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.37,
          "after": 0.4098,
          "delta": 0.0398,
          "percent_delta": 0.1076,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.18,
          "after": 0.3135,
          "delta": 0.1335,
          "percent_delta": 0.7417,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.435,
          "after": 0.4522,
          "delta": 0.0172,
          "percent_delta": 0.0395,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.556,
          "after": 0.545,
          "delta": -0.011,
          "percent_delta": -0.0198,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 6,
        "deboosted_metrics": 0,
        "better_metrics": 6,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.26,
          "after": 0.4991,
          "delta": 0.2391,
          "percent_delta": 0.9196,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 54
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2386,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.0723,
        "predicted_AVG": 0.1554,
        "predicted_BB": 0.0895,
        "predicted_H": 0.4773,
        "predicted_HBP": 0.004,
        "predicted_HR": 0.0817,
        "predicted_OBP": 0.1793,
        "predicted_R": 0.379,
        "predicted_RBI": 0.29,
        "predicted_SLG": 0.3134,
        "predicted_SO": 0.554
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2386,
          "after": 0.2386,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0723,
          "after": 3.0723,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2555,
          "after": 0.1554,
          "delta": -0.1001,
          "percent_delta": -0.3918,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.091,
          "after": 0.0895,
          "delta": -0.0015,
          "percent_delta": -0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.4991,
          "after": 0.4773,
          "delta": -0.0218,
          "percent_delta": -0.0437,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.004,
          "after": 0.004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0857,
          "after": 0.0817,
          "delta": -0.004,
          "percent_delta": -0.0467,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2742,
          "after": 0.1793,
          "delta": -0.0949,
          "percent_delta": -0.3461,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4098,
          "after": 0.379,
          "delta": -0.0308,
          "percent_delta": -0.0752,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3135,
          "after": 0.29,
          "delta": -0.0235,
          "percent_delta": -0.075,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4522,
          "after": 0.3134,
          "delta": -0.1388,
          "percent_delta": -0.3069,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.545,
          "after": 0.554,
          "delta": 0.009,
          "percent_delta": 0.0165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4522,
          "after": 0.3134,
          "delta": -0.1388,
          "percent_delta": -0.3069,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.07), rates preserved: AVG=0.155 HR/AB=0.027",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2386,
          "after": 0.0,
          "delta": -0.2386,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0723,
          "after": 3.0,
          "delta": -0.0723,
          "percent_delta": -0.0235,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0895,
          "after": 0.0,
          "delta": -0.0895,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.4773,
          "after": 0.0,
          "delta": -0.4773,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.004,
          "after": 0.0,
          "delta": -0.004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0817,
          "after": 0.0,
          "delta": -0.0817,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.29,
          "after": 0.0,
          "delta": -0.29,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.554,
          "after": 1.0,
          "delta": 0.446,
          "percent_delta": 0.8051,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 0,
        "worse_metrics": 7,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.554,
          "after": 1.0,
          "delta": 0.446,
          "percent_delta": 0.8051,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 0.4773,
          "after": 0.0,
          "delta": -0.4773,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.333)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9333,
        "bvp": 0.0667
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.379,
          "after": 0.0,
          "delta": -0.379,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.379,
          "after": 0.0,
          "delta": -0.379,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1554,
          "after": 0.333,
          "delta": 0.1776,
          "percent_delta": 1.1429,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.1793,
          "after": 0.333,
          "delta": 0.1537,
          "percent_delta": 0.8572,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3134,
          "after": 0.333,
          "delta": 0.0196,
          "percent_delta": 0.0625,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1554,
          "after": 0.333,
          "delta": 0.1776,
          "percent_delta": 1.1429,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.1554,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.1793,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3134,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1554,
          "delta": -0.1776,
          "percent_delta": -0.5334,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.1793,
          "delta": -0.1537,
          "percent_delta": -0.4616,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3134,
          "delta": -0.0196,
          "percent_delta": -0.059,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1554,
          "delta": -0.1776,
          "percent_delta": -0.5334,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.222,
        "after": 0.0,
        "delta": -0.222,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.981,
        "after": 3.0,
        "delta": 0.019,
        "percent_delta": 0.0064,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AVG",
        "before": 0.249,
        "after": 0.1554,
        "delta": -0.0936,
        "percent_delta": -0.3759,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.093,
        "after": 1.0,
        "delta": 0.907,
        "percent_delta": 9.7527,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.26,
        "after": 0.0,
        "delta": -0.26,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.05,
        "after": 0.0,
        "delta": -0.05,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.268,
        "after": 0.1793,
        "delta": -0.0887,
        "percent_delta": -0.331,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.37,
        "after": 0.0,
        "delta": -0.37,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.18,
        "after": 0.0,
        "delta": -0.18,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.435,
        "after": 0.3134,
        "delta": -0.1216,
        "percent_delta": -0.2795,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.556,
        "after": 1.0,
        "delta": 0.444,
        "percent_delta": 0.7986,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 2,
      "deboosted_metrics": 8,
      "better_metrics": 1,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.093,
        "after": 1.0,
        "delta": 0.907,
        "percent_delta": 9.7527,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_R",
        "before": 0.37,
        "after": 0.0,
        "delta": -0.37,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.222-
predicted_3B0.000-
predicted_AB2.981-
predicted_AVG0.249-
predicted_BB0.093-
predicted_H0.260-
predicted_HR0.050-
predicted_OBP0.268-
predicted_R0.370-
predicted_RBI0.180-
predicted_SLG0.435-
predicted_SO0.556-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2390.017
predicted_3B0.0010.001
predicted_AB3.0720.091
predicted_AVG0.2560.007
predicted_BB0.091-0.002
predicted_H0.4990.239
predicted_HBP0.004-
predicted_HR0.0860.036
predicted_OBP0.2740.006
predicted_R0.4100.040
predicted_RBI0.3140.134
predicted_SLG0.4520.017
predicted_SO0.545-0.011
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2390.000
predicted_3B0.0010.000
predicted_AB3.0720.000
predicted_AVG0.155-0.100
predicted_BB0.089-0.002
predicted_H0.477-0.022
predicted_HBP0.0040.000
predicted_HR0.082-0.004
predicted_OBP0.179-0.095
predicted_R0.379-0.031
predicted_RBI0.290-0.024
predicted_SLG0.313-0.139
predicted_SO0.5540.009
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.07), rates preserved: AVG=0.155 HR/AB=0.027

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H0.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=6.0, weight=0.067, BvP AVG=0.333)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
H1.0001.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.239
predicted_3B0.000-0.001
predicted_AB3.000-0.072
predicted_AVG0.3330.178
predicted_BB0.000-0.089
predicted_H1.0000.523
predicted_HR0.000-0.082
predicted_OBP0.3330.154
predicted_R0.000-0.379
predicted_RBI0.000-0.290
predicted_SLG0.3330.020
predicted_SO1.0000.446
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 54
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-16.0005.0002.0000.0001.0004.0004.0000.0002.0000.31250.31250.62500.31250.06250.25000.00000.1250
last_100.2010-33.0008.0003.0000.0001.0004.0004.0000.0003.0000.24240.24240.42420.24240.03030.12120.00000.0909
season0.6054-161.00042.00012.0000.0007.00024.00020.0005.00030.0000.26090.27810.46580.26090.04350.14910.03110.1863
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2630
predicted_3B0.0020
predicted_AB3.2060
predicted_AVG0.2650
predicted_BB0.0880
predicted_H0.8490
predicted_HBP0.0040
predicted_HR0.1380
predicted_OBP0.2832
predicted_R0.4680
predicted_RBI0.5090
predicted_SLG0.4773
predicted_SO0.5290
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.22200.26300.2386model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB2.98103.20603.0723model_form_blend
predicted_AVG0.24900.26500.2555model_form_blend
predicted_BB0.09300.08800.0910model_form_blend
predicted_H0.26000.84900.4991model_form_blend
predicted_HBP-0.00400.0040form_only
predicted_HR0.05000.13800.0857model_form_blend
predicted_OBP0.26800.28320.2742model_form_blend
predicted_R0.37000.46800.4098model_form_blend
predicted_RBI0.18000.50900.3135model_form_blend
predicted_SLG0.43500.47730.4522model_form_blend
predicted_SO0.55600.52900.5450model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date133
Season rows before report date133
Report year2026
Profile rows used54
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO1
SF0
HBP0
season_avg0.261

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR1
Hitting_IBB0
Hitting_R1
Hitting_RBI1
Hitting_SAC1
Hitting_SF0
Hitting_SO0
Hitting_TB4
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_KC@WAS
game_typefull
mlbID686681
playerID686681
playerNameMichael Massey
pos2B
startedTrue
startingPosition2B
teamKC
teamID12
game_date2026-06-17
sl_k_percent17.5
sl_bb_percent2.9
sl_woba0.317
sl_xwoba0.287
sl_xba0.227
sl_xslg0.417
sl_sweet_spot_percent30.1
sl_barrel_batted_rate8.8
sl_hard_hit_percent42.6
sl_exit_velocity_avg91.1
sl_launch_angle_avg19.5
sl_whiff_percent21.1
sl_swing_percent52.5
Noah Cameron (702070) · PITCHER · Starter · Team KC
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 13
All-history rows before 20260618: 13

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB2.0002.0002.000Pitching_BB1.3080.0000.6922.000
predicted_ER5.0005.0005.000Pitching_ER2.4624.0002.5381.000
predicted_H7.0007.0007.000Pitching_H5.2317.0001.7690.000
predicted_IP5.2005.2005.200Pitching_InningsPitched5.2774.100-0.0771.100
predicted_SO3.0003.0003.000Pitching_SO4.9231.000-1.9232.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 5.6667 -> 5.2000 (deboost -0.4667, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_IP: 5.6667 -> 5.2000 (deboost -0.4667, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "702070",
  "player_name": "Noah Cameron",
  "position": "Starter",
  "team": "KC",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 5.0,
        "predicted_H": 7.0,
        "predicted_HR": 0.0,
        "predicted_IP": 5.6667,
        "predicted_SO": 3.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 5.0,
        "predicted_H": 7.0,
        "predicted_HR": 0.0,
        "predicted_IP": 5.2,
        "predicted_R": 5.0,
        "predicted_SO": 3.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 5.0,
          "after": 5.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 7.0,
          "after": 7.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.6667,
          "after": 5.2,
          "delta": -0.4667,
          "percent_delta": -0.0824,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 5.6667,
          "after": 5.2,
          "delta": -0.4667,
          "percent_delta": -0.0824,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 5.0,
        "after": 5.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 7.0,
        "after": 7.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 5.6667,
        "after": 5.2,
        "delta": -0.4667,
        "percent_delta": -0.0824,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 3.0,
        "after": 3.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 5.6667,
        "after": 5.2,
        "delta": -0.4667,
        "percent_delta": -0.0824,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB2.000-
predicted_ER5.000-
predicted_H7.000-
predicted_HR0.000-
predicted_IP5.667-
predicted_SO3.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 13
Reference playing time: 5.667
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.45528.1007.00019.0003.00028.0003.0002.22350.77650.24710.67060.10590.98820.1059
last_100.351054.00025.00052.00013.00050.0006.0004.16671.20370.46300.96300.24070.92590.1111
season0.201370.00032.00068.00017.00064.0008.0004.11431.21430.45710.97140.24290.91430.1143
Weighted Prediction From Real Data
MetricValue
predicted_BB1.2800
predicted_ER2.2280
predicted_ERA3.6225
predicted_H4.8270
predicted_HR0.6620
predicted_IP5.2000
predicted_SO5.2450
predicted_WHIP1.1035
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB2.00001.28001.6165model_form_blend
predicted_ER5.00002.22803.5236model_form_blend
predicted_ERA-3.62253.6225form_only
predicted_H7.00004.82705.8426model_form_blend
predicted_HR0.00000.66200.3526model_form_blend
predicted_IP5.20005.20005.2000model_form_blend
predicted_SO3.00005.24504.1958model_form_blend
predicted_WHIP-1.10351.1035form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date13
Season rows before report date13
Report year2026
Profile rows used13
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP5.2
H7
R5
ER5
BB2
SO3
HR0
BF26
Pitches100

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced20
Pitching_ER4
Pitching_ERA4.11
Pitching_Flyouts3
Pitching_Groundouts5
Pitching_H7
Pitching_HBP0
Pitching_HR2
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched4.1
Pitching_Pitches86
Pitching_R4
Pitching_SO1
Pitching_Strikes53
Pitching_Wild Pitch0
Pitching_pitchingOrder1
allPositionsPlayedP
gameID20260613_HOU@KC
game_typefull
mlbID702070
playerID702070
playerNameNoah Cameron
posP
startedTrue
startingPositionP
teamKC
teamID12
game_date2026-06-13
sl_k_percent21.7
sl_bb_percent5.8
sl_woba0.302
sl_xwoba0.32
sl_sweet_spot_percent38.3
sl_barrel_batted_rate9.4
sl_hard_hit_percent39.7
sl_whiff_percent23.9
sl_swing_percent48.1
sl_avg_best_speed77.521006132
sl_avg_hyper_speed94.371216445
Alex Lange (656638) · PITCHER · Middle Reliever · Team KC
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 31
All-history rows before 20260618: 31

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.6130.000-0.6130.000
predicted_ER0.0000.0000.000Pitching_ER0.4840.000-0.4840.000
predicted_H1.0001.0001.000Pitching_H0.9030.0000.0971.000
predicted_IP1.0001.0001.000Pitching_InningsPitched1.0031.000-0.0030.000
predicted_SO1.0001.0001.000Pitching_SO1.1290.000-0.1291.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "656638",
  "player_name": "Alex Lange",
  "position": "Middle Reliever",
  "team": "KC",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO1.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 31
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.2002.0004.0004.0007.0000.0003.17651.41180.35290.70590.70591.23530.0000
last_100.35109.2002.0008.0006.00012.0000.0001.86211.44830.20690.82760.62071.24140.0000
season0.203133.20015.00028.00019.00035.0002.0004.00991.39600.44550.83170.56441.03960.0594
Weighted Prediction From Real Data
MetricValue
predicted_BB0.5260
predicted_ER0.3980
predicted_ERA3.5785
predicted_H0.8590
predicted_HR0.0690
predicted_IP1.0000
predicted_SO1.0870
predicted_WHIP1.3854
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.52600.2468model_form_blend
predicted_ER0.00000.39800.1867model_form_blend
predicted_ERA-3.57853.5785form_only
predicted_H1.00000.85900.9338model_form_blend
predicted_HR0.00000.06900.0324model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO1.00001.08701.0408model_form_blend
predicted_WHIP-1.38541.3854form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date31
Season rows before report date31
Report year2026
Profile rows used31
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H1
R0
ER0
BB0
SO1
HR0
BF4
Pitches4

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER0
Pitching_ERA4.01
Pitching_Flyouts1
Pitching_Groundouts0
Pitching_H0
Pitching_HBP1
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches19
Pitching_R0
Pitching_SO0
Pitching_Strikes13
Pitching_Wild Pitch0
Pitching_pitchingOrder5
allPositionsPlayedP
gameID20260617_KC@WAS
game_typefull
mlbID656638
playerID656638
playerNameAlex Lange
posP
startedFalse
startingPositionP
teamKC
teamID12
game_date2026-06-17
sl_k_percent24.0
sl_bb_percent13.0
sl_woba0.326
sl_xwoba0.335
sl_sweet_spot_percent37.5
sl_barrel_batted_rate13.6
sl_hard_hit_percent43.2
sl_whiff_percent29.4
sl_swing_percent45.3
sl_avg_best_speed80.793706136
sl_avg_hyper_speed95.189411379
Daniel Lynch IV (663738) · PITCHER · Middle Reliever · Team KC
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 31
All-history rows before 20260618: 31

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB2.0002.0002.000Pitching_BB0.3552.0001.6450.000
predicted_ER0.0000.0000.000Pitching_ER0.2903.000-0.290-3.000
predicted_H1.0001.0001.000Pitching_H0.6452.0000.355-1.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.8871.0000.1130.000
predicted_SO0.0000.0000.000Pitching_SO0.9681.000-0.968-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "663738",
  "player_name": "Daniel Lynch IV",
  "position": "Middle Reliever",
  "team": "KC",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB2.000-
predicted_ER0.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 31
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.2004.0003.0003.0001.0001.0007.71431.28570.85710.64290.64290.21430.2143
last_100.35109.1005.0007.0004.0004.0001.0004.82141.17860.53570.75000.42860.42860.1071
season0.203131.0009.00020.00011.00030.0002.0002.61291.00000.29030.64520.35480.96770.0645
Weighted Prediction From Real Data
MetricValue
predicted_BB0.4440
predicted_ER0.5730
predicted_ERA5.1556
predicted_H0.8120
predicted_HR0.1460
predicted_IP1.0000
predicted_SO0.6630
predicted_WHIP1.2566
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB2.00000.44401.2833model_form_blend
predicted_ER0.00000.57300.2639model_form_blend
predicted_ERA-5.15565.1556form_only
predicted_H1.00000.81200.9134model_form_blend
predicted_HR0.00000.14600.0673model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00000.66300.3054model_form_blend
predicted_WHIP-1.25661.2566form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date31
Season rows before report date31
Report year2026
Profile rows used31
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H1
R0
ER0
BB2
SO0
HR0
BF6
Pitches6

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB2
Pitching_Balk0
Pitching_Batters Faced7
Pitching_ER3
Pitching_ERA2.61
Pitching_Flyouts0
Pitching_Groundouts2
Pitching_H2
Pitching_HBP0
Pitching_HR1
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches29
Pitching_R3
Pitching_SO1
Pitching_Strikes15
Pitching_Wild Pitch1
Pitching_decisionL
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260616_KC@WAS
game_typefull
mlbID663738
playerID663738
playerNameDaniel Lynch IV
posP
startedFalse
startingPositionP
teamKC
teamID12
game_date2026-06-16
sl_k_percent23.6
sl_bb_percent8.7
sl_woba0.257
sl_xwoba0.276
sl_sweet_spot_percent31.0
sl_barrel_batted_rate6.0
sl_hard_hit_percent34.5
sl_whiff_percent31.9
sl_swing_percent46.9
sl_avg_best_speed75.36135
sl_avg_hyper_speed93.621195119
Lucas Erceg (668674) · PITCHER · Middle Reliever · Team KC
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 29
All-history rows before 20260618: 29

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.6550.000-0.6550.000
predicted_ER0.0000.0000.000Pitching_ER0.5860.000-0.5860.000
predicted_H0.0000.0000.000Pitching_H1.1030.000-1.1030.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.8861.0000.1140.000
predicted_SO0.0000.0000.000Pitching_SO0.7931.000-0.793-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "668674",
  "player_name": "Lucas Erceg",
  "position": "Middle Reliever",
  "team": "KC",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 28
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.0001.0003.0004.0003.0000.0001.80001.40000.20000.60000.80000.60000.0000
last_100.351010.0007.00014.0007.0008.0001.0006.30002.10000.70001.40000.70000.80000.1000
season0.202827.10014.00027.00019.00023.0001.0004.60981.68290.51220.98780.69510.84150.0366
Weighted Prediction From Real Data
MetricValue
predicted_BB0.5610
predicted_ER0.4680
predicted_ERA4.2109
predicted_H0.9650
predicted_HR0.0920
predicted_IP1.0000
predicted_SO0.8230
predicted_WHIP1.5269
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.56100.2510model_form_blend
predicted_ER0.00000.46800.2094model_form_blend
predicted_ERA-4.21094.2109form_only
predicted_H0.00000.96500.4318model_form_blend
predicted_HR0.00000.09200.0412model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00000.82300.3682model_form_blend
predicted_WHIP-1.52691.5269form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date29
Season rows before report date29
Report year2026
Profile rows used28
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H0
R0
ER0
BB0
SO0
HR0
BF3
Pitches16

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA5.60
Pitching_Flyouts0
Pitching_Groundouts2
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches11
Pitching_R0
Pitching_SO1
Pitching_Strikes8
Pitching_Wild Pitch0
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260617_KC@WAS
game_typefull
mlbID668674
playerID668674
playerNameLucas Erceg
posP
startedFalse
startingPositionP
teamKC
teamID12
game_date2026-06-17
sl_k_percent18.1
sl_bb_percent15.0
sl_woba0.38
sl_xwoba0.32
sl_sweet_spot_percent31.0
sl_barrel_batted_rate6.0
sl_hard_hit_percent39.3
sl_whiff_percent21.5
sl_swing_percent46.3
sl_avg_best_speed74.120400952
sl_avg_hyper_speed94.206056386
Matt Strahm (621381) · PITCHER · Middle Reliever · Team KC
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 24
All-history rows before 20260618: 24

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.2920.000-0.2920.000
predicted_ER0.0000.0000.000Pitching_ER0.5831.000-0.583-1.000
predicted_H0.0000.0000.000Pitching_H0.9172.000-0.917-2.000
predicted_IP0.1000.1000.100Pitching_InningsPitched0.8580.100-0.7580.000
predicted_SO0.0000.0000.000Pitching_SO0.7500.000-0.7500.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 0.3333 -> 0.1000 (deboost -0.2333, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_IP: 0.3333 -> 0.1000 (deboost -0.2333, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "621381",
  "player_name": "Matt Strahm",
  "position": "Middle Reliever",
  "team": "KC",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.3333,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.1,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 0.3333,
          "after": 0.1,
          "delta": -0.2333,
          "percent_delta": -0.7,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 0.3333,
          "after": 0.1,
          "delta": -0.2333,
          "percent_delta": -0.7,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 0.3333,
        "after": 0.1,
        "delta": -0.2333,
        "percent_delta": -0.7,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 0.3333,
        "after": 0.1,
        "delta": -0.2333,
        "percent_delta": -0.7,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP0.333-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 24
Reference playing time: 0.333
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4553.2006.0007.0000.0001.0004.00014.72731.90911.63641.90910.00000.27271.0909
last_100.35108.1009.00012.0001.0004.0006.0009.72001.56001.08001.44000.12000.48000.7200
season0.202422.00014.00022.0007.00018.0008.0005.72731.31820.63641.00000.31820.81820.3636
Weighted Prediction From Real Data
MetricValue
predicted_BB0.1260
predicted_ER0.4400
predicted_ERA7.6168
predicted_H0.6490
predicted_HR0.2380
predicted_IP0.2000
predicted_SO0.3700
predicted_WHIP1.4918
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.12600.0535model_form_blend
predicted_ER0.00000.44000.1868model_form_blend
predicted_ERA-7.61687.6168form_only
predicted_H0.00000.64900.2755model_form_blend
predicted_HR0.00000.23800.1010model_form_blend
predicted_IP0.10000.20000.1000model_form_blend
predicted_SO0.00000.37000.1571model_form_blend
predicted_WHIP-1.49181.4918form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date24
Season rows before report date24
Report year2026
Profile rows used24
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP0.1
H0
R0
ER0
BB0
SO0
HR0
BF1
Pitches14

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced2
Pitching_ER1
Pitching_ERA5.73
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H2
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners1
Pitching_Inherited Runners Scored1
Pitching_InningsPitched0.1
Pitching_Pitches6
Pitching_R1
Pitching_SO0
Pitching_Strikes4
Pitching_Wild Pitch0
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260617_KC@WAS
game_typefull
mlbID621381
playerID621381
playerNameMatt Strahm
posP
startedFalse
startingPositionP
teamKC
teamID12
game_date2026-06-17
sl_k_percent18.8
sl_bb_percent7.3
sl_woba0.387
sl_xwoba0.313
sl_sweet_spot_percent29.0
sl_barrel_batted_rate10.1
sl_hard_hit_percent43.5
sl_whiff_percent23.2
sl_swing_percent49.1
sl_avg_best_speed81.148946857
sl_avg_hyper_speed93.889683478
John Schreiber (670167) · PITCHER · Middle Reliever · Team KC
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 32
All-history rows before 20260618: 32

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.3440.000-0.3440.000
predicted_ER0.0000.0000.000Pitching_ER0.2810.000-0.2810.000
predicted_H0.0000.0000.000Pitching_H0.7501.000-0.750-1.000
predicted_IP0.0000.0000.000Pitching_InningsPitched0.7811.000-0.781-1.000
predicted_SO0.0000.0000.000Pitching_SO0.6560.000-0.6560.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 0.1000 -> 0.0000 (deboost -0.1000, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_IP: 0.1000 -> 0.0000 (deboost -0.1000, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "670167",
  "player_name": "John Schreiber",
  "position": "Middle Reliever",
  "team": "KC",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.1,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 0.1,
          "after": 0.0,
          "delta": -0.1,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 0.1,
          "after": 0.0,
          "delta": -0.1,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP0.100-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 32
Reference playing time: 0.100
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.1001.0003.0000.0005.0001.0001.68750.56250.18750.56250.00000.93750.1875
last_100.35109.1002.0005.0001.0009.0002.0001.92860.64290.21430.53570.10710.96430.2143
season0.203229.2009.00024.00011.00021.0005.0002.73031.17980.30340.80900.37080.70790.1685
Weighted Prediction From Real Data
MetricValue
predicted_BB0.1580
predicted_ER0.2420
predicted_ERA3.1410
predicted_H0.5360
predicted_HR0.1190
predicted_IP0.2000
predicted_SO0.6370
predicted_WHIP1.0002
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.15800.0721model_form_blend
predicted_ER0.00000.24200.1104model_form_blend
predicted_ERA-3.14103.1410form_only
predicted_H0.00000.53600.2444model_form_blend
predicted_HR0.00000.11900.0543model_form_blend
predicted_IP0.10000.20000.1000model_form_blend
predicted_SO0.00000.63700.2905model_form_blend
predicted_WHIP-1.00021.0002form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date32
Season rows before report date32
Report year2026
Profile rows used32
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP0.0
H0
R0
ER0
BB0
SO0
HR0
BF2
Pitches13

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA2.73
Pitching_Flyouts0
Pitching_Groundouts2
Pitching_H1
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches15
Pitching_R0
Pitching_SO0
Pitching_Strikes11
Pitching_Wild Pitch0
Pitching_pitchingOrder4
allPositionsPlayedP
gameID20260617_KC@WAS
game_typefull
mlbID670167
playerID670167
playerNameJohn Schreiber
posP
startedFalse
startingPositionP
teamKC
teamID12
game_date2026-06-17
sl_k_percent17.6
sl_bb_percent9.2
sl_woba0.308
sl_xwoba0.329
sl_sweet_spot_percent39.5
sl_barrel_batted_rate7.1
sl_hard_hit_percent38.4
sl_whiff_percent20.0
sl_swing_percent44.2
sl_avg_best_speed78.388859762
sl_avg_hyper_speed94.080472169
Steven Cruz (674444) · PITCHER · Reliever · Team KC
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 19
All-history rows before 20260618: 19

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.6320.000-0.6320.000
predicted_ER1.0001.0001.000Pitching_ER0.6840.0000.3161.000
predicted_H2.0002.0002.000Pitching_H0.9470.0001.0532.000
predicted_IP0.0000.0000.000Pitching_InningsPitched0.9110.200-0.911-0.200
predicted_SO0.0000.0000.000Pitching_SO1.4211.000-1.421-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics3
Boosted Metrics2
Deboosted Metrics1
Better Metrics0
Worse Metrics3
Biggest Boostpredicted_H: 0.0000 -> 2.0000 (boost 2.0000, worse)
Biggest Deboostpredicted_IP: 0.1000 -> 0.0000 (deboost -0.1000, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final32103predicted_H: 0.0000 -> 2.0000 (boost 2.0000, worse)predicted_IP: 0.1000 -> 0.0000 (deboost -0.1000, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "674444",
  "player_name": "Steven Cruz",
  "position": "Reliever",
  "team": "KC",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.1,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 1.0,
        "predicted_H": 2.0,
        "predicted_HR": 0.0,
        "predicted_IP": 0.0,
        "predicted_R": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 0.1,
          "after": 0.0,
          "delta": -0.1,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 0.1,
          "after": 0.0,
          "delta": -0.1,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 1.0,
        "delta": 1.0,
        "percent_delta": null,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 2.0,
        "delta": 2.0,
        "percent_delta": null,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 3,
      "boosted_metrics": 2,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 3,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 2.0,
        "delta": 2.0,
        "percent_delta": null,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP0.100-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 19
Reference playing time: 0.100
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4556.1000.0003.0001.0007.0000.0000.00000.63160.00000.47370.15791.10530.0000
last_100.351011.2005.0009.0005.00014.0003.0003.85711.20000.42860.77140.42861.20000.2571
season0.201920.10013.00018.00012.00027.0007.0005.75411.47540.63930.88520.59021.32790.3443
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2640
predicted_ER0.3010
predicted_ERA3.6113
predicted_H0.6260
predicted_HR0.1140
predicted_IP0.2000
predicted_SO0.7860
predicted_WHIP1.1862
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.26400.1099model_form_blend
predicted_ER0.00000.30100.1253model_form_blend
predicted_ERA-3.61133.6113form_only
predicted_H0.00000.62600.2606model_form_blend
predicted_HR0.00000.11400.0475model_form_blend
predicted_IP0.10000.20000.1000model_form_blend
predicted_SO0.00000.78600.3272model_form_blend
predicted_WHIP-1.18621.1862form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date19
Season rows before report date19
Report year2026
Profile rows used19
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP0.0
H2
R1
ER1
BB0
SO0
HR0
BF2
Pitches18

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced2
Pitching_ER0
Pitching_ERA5.75
Pitching_Flyouts0
Pitching_Groundouts1
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners2
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.2
Pitching_Pitches8
Pitching_R0
Pitching_SO1
Pitching_Strikes7
Pitching_Wild Pitch0
Pitching_decisionH
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260614_HOU@KC
game_typefull
mlbID674444
playerID674444
playerNameSteven Cruz
posP
startedFalse
startingPositionP
teamKC
teamID12
game_date2026-06-14
sl_k_percent30.0
sl_bb_percent13.3
sl_woba0.368
sl_xwoba0.32
sl_sweet_spot_percent37.3
sl_barrel_batted_rate13.7
sl_hard_hit_percent31.4
sl_whiff_percent34.5
sl_swing_percent48.6
sl_avg_best_speed78.5189225
sl_avg_hyper_speed93.677601042

20260618_TOR@BOS

Prediction Method: enhanced_ml_savant_pitcher_quality
Team Recent Window (Home): 57 games
Team Recent Window (Away): 65 games
Team Recent Period: Latest 10 games from dataset
Enhanced Prediction Target: {"away_runs": 2, "home_runs": 1, "confidence": 0.5649219999999999, "home_win_probability": 0.4350780000000001, "away_win_probability": 0.5649219999999999, "predicted_score_text": "TOR 2 - 1 BOS", "embedded_savant_score_adjustment": {"applied": true, "source": "all_players_stats.csv embedded temporal Savant features", "feature_contract": {"training_grain": "one player-game row after collapsing granular at-bat rows", "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game", "hitter_signals": ["xwoba", "xba", "xslg", "barrel_batted_rate", "hard_hit_percent", "bat_speed", "launch_quality", "walk_rate", "strikeout_rate"], "pitcher_signals": ["xwoba_allowed", "barrel_allowed", "hard_hit_allowed", "whiff_rate", "command_score", "movement_score", "faced_est_woba", "faced_strikeout_rate"]}, "away": {"team": "TOR", "original_runs": 2, "run_delta": 0.0597, "adjusted_runs": 2, "lineup": {"players_used": 9, "total_weight": 31.0, "quality": -0.0011091672152414792, "contact": 0.07966363090767946, "power": -0.0290010870341635, "discipline": -0.03617879221626812, "xwoba": 0.3150645161290323, "recent_xwoba": 0.3150645161290323, "barrel": 7.293548387096774, "ab_hard_contact": -0.07733664083688561, "ab_bat_speed": 70.36302375555438, "ab_strikeout_rate": 0.1844244180826652, "available_players": 9, "top_players": [{"player_id": "665926", "player_name": "Andrés Giménez", "position": "SS", "weight": 3.0, "quality": -0.8457797886291677, "contact": -1.05893648617504, "power": -1.0506725717504848, "discipline": -0.6264871365020926, "xwoba": 0.265, "recent_xwoba": 0.265, "barrel": 3.8, "ab_hard_contact": -0.8336419112001804, "ab_bat_speed": 65.97817085953878, "ab_strikeout_rate": 0.17830188679245282, "available": 1.0}, {"player_id": "676391", "player_name": "Ernie Clement", "position": "2B", "weight": 4.0, "quality": -0.7282140210661434, "contact": -0.6212147851703843, "power": -0.9803302475762165, "discipline": -0.009306461830851959, "xwoba": 0.267, "recent_xwoba": 0.267, "barrel": 2.8, "ab_hard_contact": -0.23289066581005827, "ab_bat_speed": 65.85213734567901, "ab_strikeout_rate": 0.08212121212121212, "available": 1.0}, {"player_id": "660821", "player_name": "Jesús Sánchez", "position": "RF", "weight": 3.0, "quality": 0.4960419278500472, "contact": 0.7974771953330623, "power": 0.9277168882665244, "discipline": -0.5601517400094634, "xwoba": 0.34400000000000003, "recent_xwoba": 0.344, "barrel": 11.5, "ab_hard_contact": 0.16119490818762972, "ab_bat_speed": 71.35664233303385, "ab_strikeout_rate": 0.22839506172839505, "available": 1.0}, {"player_id": "665489", "player_name": "Vladimir Guerrero Jr.", "position": "1B", "weight": 4.0, "quality": 0.6540566775847464, "contact": 1.011002503492524, "power": 0.17926315647307325, "discipline": 0.9201072031205488, "xwoba": 0.348, "recent_xwoba": 0.348, "barrel": 6.2, "ab_hard_contact": 0.701072653270988, "ab_bat_speed": 75.4817074722971, "ab_strikeout_rate": 0.11320754716981132, "available": 1.0}, {"player_id": "672960", "player_name": "Kazuma Okamoto", "position": "3B", "weight": 4.0, "quality": 0.32372415611396754, "contact": 0.027069108164582075, "power": 0.9884243379755487, "discipline": -0.5705060044266208, "xwoba": 0.323, "recent_xwoba": 0.323, "barrel": 14.4, "ab_hard_contact": 0.4595343785585875, "ab_bat_speed": 71.33991614255766, "ab_strikeout_rate": 0.3113207547169811, "available": 1.0}]}, "opposing_starter": {"available": true, "player_id": "543243", "player_name": "Sonny Gray", "quality": -0.12265596424745204, "contact": -0.16402645762166665, "command": -0.14700000000000008, "movement": -0.3438950884813347, "xwoba": 0.317, "whiff": 22.1, "faced_est_woba": 0.267543125, "faced_launch_speed": 83.82962962962962, "faced_strikeout_rate": 0.23125, "faced_run_exp": 0.007916194341372912}}, "home": {"team": "BOS", "original_runs": 1, "run_delta": -0.1508, "adjusted_runs": 1, "lineup": {"players_used": 9, "total_weight": 31.0, "quality": 0.01410686582531416, "contact": -0.07706760911078905, "power": -0.098462191462127, "discipline": -0.12098287657032582, "xwoba": 0.3121935483870968, "recent_xwoba": 0.3121935483870968, "barrel": 7.587096774193549, "ab_hard_contact": -0.10011326088616664, "ab_bat_speed": 69.95222881860822, "ab_strikeout_rate": 0.22408103699893472, "available_players": 9, "top_players": [{"player_id": "575929", "player_name": "Willson Contreras", "position": "1B", "weight": 4.0, "quality": 0.7830308134297406, "contact": 0.8672843698843642, "power": 1.210102045911292, "discipline": -0.2609480881783607, "xwoba": 0.383, "recent_xwoba": 0.383, "barrel": 14.0, "ab_hard_contact": 1.2058504420353615, "ab_bat_speed": 74.61826416122005, "ab_strikeout_rate": 0.25947712418300656, "available": 1.0}, {"player_id": "702332", "player_name": "Caleb Durbin", "position": "3B", "weight": 3.0, "quality": -0.45054975766932814, "contact": -0.5886275237643993, "power": -1.0541446726882762, "discipline": 0.23355388072514272, "xwoba": 0.28, "recent_xwoba": 0.28, "barrel": 2.8, "ab_hard_contact": -0.9160363109083847, "ab_bat_speed": 66.0515579710145, "ab_strikeout_rate": 0.1532608695652174, "available": 1.0}, {"player_id": "677800", "player_name": "Wilyer Abreu", "position": "RF", "weight": 4.0, "quality": 0.4774657151194073, "contact": 0.45710459410990395, "power": 0.6670240105951046, "discipline": 0.14765212675037803, "xwoba": 0.336, "recent_xwoba": 0.336, "barrel": 11.1, "ab_hard_contact": 0.5240992595211318, "ab_bat_speed": 72.98060871518419, "ab_strikeout_rate": 0.18459119496855345, "available": 1.0}, {"player_id": "678882", "player_name": "Ceddanne Rafaela", "position": "CF", "weight": 4.0, "quality": -0.3533695775177199, "contact": -0.3064550218803427, "power": -0.3911574653740375, "discipline": -0.3818995354239256, "xwoba": 0.296, "recent_xwoba": 0.296, "barrel": 6.3, "ab_hard_contact": -0.13553025986168538, "ab_bat_speed": 68.28380111111112, "ab_strikeout_rate": 0.20600000000000002, "available": 1.0}, {"player_id": "643396", "player_name": "Isiah Kiner-Falefa", "position": "SS", "weight": 3.0, "quality": -0.10295272904458758, "contact": -0.0797581536815842, "power": -1.0031205001411176, "discipline": 0.5767950815533002, "xwoba": 0.319, "recent_xwoba": 0.319, "barrel": 3.1, "ab_hard_contact": -0.5281242885366351, "ab_bat_speed": 65.21753623188405, "ab_strikeout_rate": 0.1463768115942029, "available": 1.0}]}, "opposing_starter": {"available": true, "player_id": "702056", "player_name": "Trey Yesavage", "quality": 0.12279599262810893, "contact": 0.4353280764577775, "command": 0.12271428571428572, "movement": -0.033546536124203136, "xwoba": 0.28, "whiff": 29.1, "faced_est_woba": 0.267543125, "faced_launch_speed": 83.82962962962962, "faced_strikeout_rate": 0.23125, "faced_run_exp": 0.007916194341372912}}}, "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Production confidence governor cap enforced.", "pre_simulation_target": {"away_runs": 2, "home_runs": 1, "predicted_score_text": "TOR 2 - 1 BOS", "confidence": 0.5649219999999999, "source": "enhanced_prediction_before_inning_simulation"}, "score_source": "enhanced_prediction.pre_simulation_target", "final_prediction_synced": true, "final_prediction_source": "pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "simulation_score_matches_prediction": true, "simulation_reconciliation": {"pre_simulation_score": {"away_runs": 2, "home_runs": 1, "score_text": "TOR 2 - 1 BOS", "winner": "TOR"}, "final_simulation_score": {"away_runs": 2, "home_runs": 1, "score_text": "TOR 2 - 1 BOS", "winner": "TOR"}, "winner_flipped_by_simulation": false, "away_run_delta": 0, "home_run_delta": 0, "total_run_delta": 0, "score_source": "enhanced_prediction.pre_simulation_target", "simulation_usage": "advisory_box_score_draw", "final_prediction_source": "pre_simulation_target"}}
Factors Considered: Historical team performance, Season-to-date run differential, Recent form (latest 10 games), Head-to-head matchup history, Player-level statistics, Baseball Savant hitter xwOBA/xBA/xSLG/contact quality, Baseball Savant pitcher xwOBA/contact/whiff quality, Recent 10-game performance trends, Pitcher recent form analysis, Team hitting/pitching streaks, Low-score probability modeling, Environmental factors, Home field advantage, Game timing factors, Seasonal adjustments, Machine learning models

Game-Level Prediction Audit

LayerScoreWinnerConfidenceSource or usageSynced or matches
Shipped predictionTOR 2 - 1 BOSTOR0.565enhanced_prediction.pre_simulation_targetTrue
Simulation drawTOR 2 - 1 BOSTOR-advisory_box_score_drawTrue

The shipped score is the pre-simulation model target. The inning simulation is a separate box-score realization used for player lines and stress testing.

Full Prediction Process

Process LayerWhat It DoesStored FieldObserved Value
1. Historical modelStarts from trained game model output.score_evolution.steps[historical_ml]-
2. Variance layerApplies bounded game variance before enhanced corrections.score_evolution.steps[variance_applied]-
3. Recent/team formUses latest team form, recent scoring, prevention, and streak state.enhanced_prediction_analysis.recent_formTrue
4. Season qualityUses season run differential and record quality guardrails.season_run_differential_adjustment, season_quality_guardrailTrue
5. Savant hittersApplies lineup-level Statcast xwOBA, xBA, xSLG, barrel, hard-hit, sweet-spot, EV, launch-angle, whiff, K and BB quality.savant_batter_quality_adjustmentTrue
6. Savant pitchersApplies starter run prevention, strikeout, walk, HR and regression factors from xwOBA, wOBA, contact quality and whiff/command.savant_pitcher_quality_adjustmentTrue
7. Low-score analysisControls unrealistic totals and preserves the pre-sync low-score expected total.low_score_analysis6.5000
8. Probability/governorsApplies win probability calibration, matchup guardrails, margin governor and confidence governor.win_probability_calibration, margin_governor, confidence_governor0.5649
9. Simulation reconciliationKeeps final shipped score and simulation box score auditable side by side.simulation_reconciliationadvisory_box_score_draw
10. Score evolution rendered6 stored score steps are rendered below.game.score_evolution.stepstrue

Score Evolution Steps

StepLayerAway RunsHome RunsConfidenceDescription
1historical_ml5.9233.528-Base ML historical model prediction
2variance_applied64-Random variance applied (0.9-1.1)
3enhanced_prediction210.5649Enhanced ML with recent form, H2H, low-score analysis
4embedded_savant_run_environment21-Target score adjusted by temporal Savant lineup quality versus opposing starter quality
5capped_target21-Capped at max 12 realistic runs
6simulation_result21-Final inning-by-inning simulation result

Governors, Guardrails, and Reconciliation

Low Score Analysis
{
  "low_score_probability": 0.663702572614108,
  "base_low_score_probability": 0.4149377593360996,
  "low_score_signal_threshold": 0.5,
  "low_score_signal_strength": 0.24876481327800842,
  "confidence": 0.8997616000000002,
  "factors": {
    "environmental": 1.1016000000000001,
    "pitcher_form": 1.4520000000000002,
    "team_form": 1.0,
    "situational": 1.0,
    "combined": 1.5995232000000004
  },
  "prediction": "low_scoring",
  "expected_total_runs": 3,
  "pre_simulation_expected_total_runs": 6.5,
  "low_score_model_expected_total_runs": 6.5,
  "final_simulation_total_runs": 3,
  "score_source": "enhanced_prediction.pre_simulation_target"
}
Win Probability Calibration
{
  "method": "historical_slate_bin_shrinkage",
  "sample_size": 166,
  "near_bucket_sample_size": 166,
  "medium_bucket_sample_size": 232,
  "wide_bucket_sample_size": 242,
  "global_sample_size": 242,
  "bucket_scope": "near_0.05",
  "sparse_bucket": false,
  "empirical_hit_rate": 0.5663,
  "bayesian_hit_rate": 0.5598,
  "sample_weight": 0.6,
  "prior_strength": 18.0,
  "reliability": 0.9022,
  "confidence_cap": 0.78,
  "raw_pick_probability": 0.5907,
  "calibrated_pick_probability": 0.5649,
  "predicted_side": "away"
}
Season Run Differential Adjustment
{
  "applied": false,
  "home": {
    "team": "BOS",
    "games": 71,
    "wins": 29,
    "losses": 42,
    "win_pct": 0.4084507042253521,
    "runs_scored": 279,
    "runs_allowed": 291,
    "run_differential": -12,
    "run_differential_per_game": -0.16901408450704225,
    "available": true
  },
  "away": {
    "team": "TOR",
    "games": 74,
    "wins": 36,
    "losses": 38,
    "win_pct": 0.4864864864864865,
    "runs_scored": 302,
    "runs_allowed": 316,
    "run_differential": -14,
    "run_differential_per_game": -0.1891891891891892,
    "available": true
  },
  "run_differential_edge_per_game": 0.0202,
  "win_pct_edge": -0.078,
  "quality_edge": -0.0969,
  "margin_adjustment": 0.0,
  "reason": "season quality edge below action threshold"
}
Matchup Recency Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "predicted_team": "TOR",
    "guardrail_predicted_team": "TOR",
    "guardrail_opponent_team": null,
    "output_pre_simulation_winner": "TOR",
    "output_opponent_team": "BOS",
    "final_score_winner": "TOR",
    "pre_simulation_winner": "TOR",
    "winner_flipped_by_simulation": false
  },
  "final_prediction_sync": {
    "pre_simulation_score": {
      "away_runs": 2,
      "home_runs": 1,
      "score_text": "TOR 2 - 1 BOS",
      "winner": "TOR"
    },
    "final_simulation_score": {
      "away_runs": 2,
      "home_runs": 1,
      "score_text": "TOR 2 - 1 BOS",
      "winner": "TOR"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": 0,
    "home_run_delta": 0,
    "total_run_delta": 0,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}
Season Quality Guardrail
{
  "applied": false,
  "confidence_cap": null,
  "winner_flipped": false,
  "reasons": [],
  "signals": {
    "home": {
      "team": "BOS",
      "games": 71,
      "wins": 29,
      "losses": 42,
      "win_pct": 0.4084507042253521,
      "runs_scored": 279,
      "runs_allowed": 291,
      "run_differential": -12,
      "run_differential_per_game": -0.16901408450704225,
      "available": true
    },
    "away": {
      "team": "TOR",
      "games": 74,
      "wins": 36,
      "losses": 38,
      "win_pct": 0.4864864864864865,
      "runs_scored": 302,
      "runs_allowed": 316,
      "run_differential": -14,
      "run_differential_per_game": -0.1891891891891892,
      "available": true
    }
  }
}
Margin Governor
{
  "applied": false,
  "raw_margin": -1.0151,
  "final_margin": -1.0151,
  "margin_cap": 1.5,
  "season_quality_edge": 0.0969,
  "reason": "raw target margin within supported range"
}
Confidence Governor
{
  "applied": false,
  "raw_confidence": 0.564922,
  "final_confidence": 0.564922,
  "confidence_cap": 0.66,
  "score_gap": 1.0151,
  "calibration_sample_size": 166,
  "calibration_empirical_hit_rate": 0.5663,
  "calibration_bayesian_hit_rate": 0.5598,
  "calibration_sparse_bucket": false,
  "season_quality_edge": 0.0969,
  "reasons": [
    "unvalidated probabilities are capped for production display",
    "projected score gap is close",
    "local calibration sample has at least 30 games",
    "local calibration sample has at least 60 games",
    "win-probability calibration cap enforced"
  ]
}
Simulation Reconciliation
{
  "pre_simulation_score": {
    "away_runs": 2,
    "home_runs": 1,
    "score_text": "TOR 2 - 1 BOS",
    "winner": "TOR"
  },
  "final_simulation_score": {
    "away_runs": 2,
    "home_runs": 1,
    "score_text": "TOR 2 - 1 BOS",
    "winner": "TOR"
  },
  "winner_flipped_by_simulation": false,
  "away_run_delta": 0,
  "home_run_delta": 0,
  "total_run_delta": 0,
  "score_source": "enhanced_prediction.pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "final_prediction_source": "pre_simulation_target"
}
Enhanced Prediction Target
{
  "away_runs": 2,
  "home_runs": 1,
  "confidence": 0.5649219999999999,
  "home_win_probability": 0.4350780000000001,
  "away_win_probability": 0.5649219999999999,
  "predicted_score_text": "TOR 2 - 1 BOS",
  "embedded_savant_score_adjustment": {
    "applied": true,
    "source": "all_players_stats.csv embedded temporal Savant features",
    "feature_contract": {
      "training_grain": "one player-game row after collapsing granular at-bat rows",
      "temporal_rule": "all sl_/ab_/sv_ model features are shifted before the predicted game",
      "hitter_signals": [
        "xwoba",
        "xba",
        "xslg",
        "barrel_batted_rate",
        "hard_hit_percent",
        "bat_speed",
        "launch_quality",
        "walk_rate",
        "strikeout_rate"
      ],
      "pitcher_signals": [
        "xwoba_allowed",
        "barrel_allowed",
        "hard_hit_allowed",
        "whiff_rate",
        "command_score",
        "movement_score",
        "faced_est_woba",
        "faced_strikeout_rate"
      ]
    },
    "away": {
      "team": "TOR",
      "original_runs": 2,
      "run_delta": 0.0597,
      "adjusted_runs": 2,
      "lineup": {
        "players_used": 9,
        "total_weight": 31.0,
        "quality": -0.0011091672152414792,
        "contact": 0.07966363090767946,
        "power": -0.0290010870341635,
        "discipline": -0.03617879221626812,
        "xwoba": 0.3150645161290323,
        "recent_xwoba": 0.3150645161290323,
        "barrel": 7.293548387096774,
        "ab_hard_contact": -0.07733664083688561,
        "ab_bat_speed": 70.36302375555438,
        "ab_strikeout_rate": 0.1844244180826652,
        "available_players": 9,
        "top_players": [
          {
            "player_id": "665926",
            "player_name": "Andrés Giménez",
            "position": "SS",
            "weight": 3.0,
            "quality": -0.8457797886291677,
            "contact": -1.05893648617504,
            "power": -1.0506725717504848,
            "discipline": -0.6264871365020926,
            "xwoba": 0.265,
            "recent_xwoba": 0.265,
            "barrel": 3.8,
            "ab_hard_contact": -0.8336419112001804,
            "ab_bat_speed": 65.97817085953878,
            "ab_strikeout_rate": 0.17830188679245282,
            "available": 1.0
          },
          {
            "player_id": "676391",
            "player_name": "Ernie Clement",
            "position": "2B",
            "weight": 4.0,
            "quality": -0.7282140210661434,
            "contact": -0.6212147851703843,
            "power": -0.9803302475762165,
            "discipline": -0.009306461830851959,
            "xwoba": 0.267,
            "recent_xwoba": 0.267,
            "barrel": 2.8,
            "ab_hard_contact": -0.23289066581005827,
            "ab_bat_speed": 65.85213734567901,
            "ab_strikeout_rate": 0.08212121212121212,
            "available": 1.0
          },
          {
            "player_id": "660821",
            "player_name": "Jesús Sánchez",
            "position": "RF",
            "weight": 3.0,
            "quality": 0.4960419278500472,
            "contact": 0.7974771953330623,
            "power": 0.9277168882665244,
            "discipline": -0.5601517400094634,
            "xwoba": 0.34400000000000003,
            "recent_xwoba": 0.344,
            "barrel": 11.5,
            "ab_hard_contact": 0.16119490818762972,
            "ab_bat_speed": 71.35664233303385,
            "ab_strikeout_rate": 0.22839506172839505,
            "available": 1.0
          },
          {
            "player_id": "665489",
            "player_name": "Vladimir Guerrero Jr.",
            "position": "1B",
            "weight": 4.0,
            "quality": 0.6540566775847464,
            "contact": 1.011002503492524,
            "power": 0.17926315647307325,
            "discipline": 0.9201072031205488,
            "xwoba": 0.348,
            "recent_xwoba": 0.348,
            "barrel": 6.2,
            "ab_hard_contact": 0.701072653270988,
            "ab_bat_speed": 75.4817074722971,
            "ab_strikeout_rate": 0.11320754716981132,
            "available": 1.0
          },
          {
            "player_id": "672960",
            "player_name": "Kazuma Okamoto",
            "position": "3B",
            "weight": 4.0,
            "quality": 0.32372415611396754,
            "contact": 0.027069108164582075,
            "power": 0.9884243379755487,
            "discipline": -0.5705060044266208,
            "xwoba": 0.323,
            "recent_xwoba": 0.323,
            "barrel": 14.4,
            "ab_hard_contact": 0.4595343785585875,
            "ab_bat_speed": 71.33991614255766,
            "ab_strikeout_rate": 0.3113207547169811,
            "available": 1.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "543243",
        "player_name": "Sonny Gray",
        "quality": -0.12265596424745204,
        "contact": -0.16402645762166665,
        "command": -0.14700000000000008,
        "movement": -0.3438950884813347,
        "xwoba": 0.317,
        "whiff": 22.1,
        "faced_est_woba": 0.267543125,
        "faced_launch_speed": 83.82962962962962,
        "faced_strikeout_rate": 0.23125,
        "faced_run_exp": 0.007916194341372912
      }
    },
    "home": {
      "team": "BOS",
      "original_runs": 1,
      "run_delta": -0.1508,
      "adjusted_runs": 1,
      "lineup": {
        "players_used": 9,
        "total_weight": 31.0,
        "quality": 0.01410686582531416,
        "contact": -0.07706760911078905,
        "power": -0.098462191462127,
        "discipline": -0.12098287657032582,
        "xwoba": 0.3121935483870968,
        "recent_xwoba": 0.3121935483870968,
        "barrel": 7.587096774193549,
        "ab_hard_contact": -0.10011326088616664,
        "ab_bat_speed": 69.95222881860822,
        "ab_strikeout_rate": 0.22408103699893472,
        "available_players": 9,
        "top_players": [
          {
            "player_id": "575929",
            "player_name": "Willson Contreras",
            "position": "1B",
            "weight": 4.0,
            "quality": 0.7830308134297406,
            "contact": 0.8672843698843642,
            "power": 1.210102045911292,
            "discipline": -0.2609480881783607,
            "xwoba": 0.383,
            "recent_xwoba": 0.383,
            "barrel": 14.0,
            "ab_hard_contact": 1.2058504420353615,
            "ab_bat_speed": 74.61826416122005,
            "ab_strikeout_rate": 0.25947712418300656,
            "available": 1.0
          },
          {
            "player_id": "702332",
            "player_name": "Caleb Durbin",
            "position": "3B",
            "weight": 3.0,
            "quality": -0.45054975766932814,
            "contact": -0.5886275237643993,
            "power": -1.0541446726882762,
            "discipline": 0.23355388072514272,
            "xwoba": 0.28,
            "recent_xwoba": 0.28,
            "barrel": 2.8,
            "ab_hard_contact": -0.9160363109083847,
            "ab_bat_speed": 66.0515579710145,
            "ab_strikeout_rate": 0.1532608695652174,
            "available": 1.0
          },
          {
            "player_id": "677800",
            "player_name": "Wilyer Abreu",
            "position": "RF",
            "weight": 4.0,
            "quality": 0.4774657151194073,
            "contact": 0.45710459410990395,
            "power": 0.6670240105951046,
            "discipline": 0.14765212675037803,
            "xwoba": 0.336,
            "recent_xwoba": 0.336,
            "barrel": 11.1,
            "ab_hard_contact": 0.5240992595211318,
            "ab_bat_speed": 72.98060871518419,
            "ab_strikeout_rate": 0.18459119496855345,
            "available": 1.0
          },
          {
            "player_id": "678882",
            "player_name": "Ceddanne Rafaela",
            "position": "CF",
            "weight": 4.0,
            "quality": -0.3533695775177199,
            "contact": -0.3064550218803427,
            "power": -0.3911574653740375,
            "discipline": -0.3818995354239256,
            "xwoba": 0.296,
            "recent_xwoba": 0.296,
            "barrel": 6.3,
            "ab_hard_contact": -0.13553025986168538,
            "ab_bat_speed": 68.28380111111112,
            "ab_strikeout_rate": 0.20600000000000002,
            "available": 1.0
          },
          {
            "player_id": "643396",
            "player_name": "Isiah Kiner-Falefa",
            "position": "SS",
            "weight": 3.0,
            "quality": -0.10295272904458758,
            "contact": -0.0797581536815842,
            "power": -1.0031205001411176,
            "discipline": 0.5767950815533002,
            "xwoba": 0.319,
            "recent_xwoba": 0.319,
            "barrel": 3.1,
            "ab_hard_contact": -0.5281242885366351,
            "ab_bat_speed": 65.21753623188405,
            "ab_strikeout_rate": 0.1463768115942029,
            "available": 1.0
          }
        ]
      },
      "opposing_starter": {
        "available": true,
        "player_id": "702056",
        "player_name": "Trey Yesavage",
        "quality": 0.12279599262810893,
        "contact": 0.4353280764577775,
        "command": 0.12271428571428572,
        "movement": -0.033546536124203136,
        "xwoba": 0.28,
        "whiff": 29.1,
        "faced_est_woba": 0.267543125,
        "faced_launch_speed": 83.82962962962962,
        "faced_strikeout_rate": 0.23125,
        "faced_run_exp": 0.007916194341372912
      }
    }
  },
  "confidence_note": "Calibrated to pre-simulation winner probability with starter-quality caps. Production confidence governor cap enforced.",
  "pre_simulation_target": {
    "away_runs": 2,
    "home_runs": 1,
    "predicted_score_text": "TOR 2 - 1 BOS",
    "confidence": 0.5649219999999999,
    "source": "enhanced_prediction_before_inning_simulation"
  },
  "score_source": "enhanced_prediction.pre_simulation_target",
  "final_prediction_synced": true,
  "final_prediction_source": "pre_simulation_target",
  "simulation_usage": "advisory_box_score_draw",
  "simulation_score_matches_prediction": true,
  "simulation_reconciliation": {
    "pre_simulation_score": {
      "away_runs": 2,
      "home_runs": 1,
      "score_text": "TOR 2 - 1 BOS",
      "winner": "TOR"
    },
    "final_simulation_score": {
      "away_runs": 2,
      "home_runs": 1,
      "score_text": "TOR 2 - 1 BOS",
      "winner": "TOR"
    },
    "winner_flipped_by_simulation": false,
    "away_run_delta": 0,
    "home_run_delta": 0,
    "total_run_delta": 0,
    "score_source": "enhanced_prediction.pre_simulation_target",
    "simulation_usage": "advisory_box_score_draw",
    "final_prediction_source": "pre_simulation_target"
  }
}

Savant Batter Quality

Source: data/all_players_stats.csv embedded Savant hitter features. It adjusts team offense through expected production and contact quality, then records coverage so missing hitters are visible.

TeamAppliedOffense FactorRaw Avg FactorCoverage WeightCoveredMissing
Away TORTrue1.00731.0073190
Home BOSTrue1.00791.0079190

Away Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
1BVladimir Guerrero Jr.1731.05850.7805neutral0.34800.29300.41106.2044.1090.308.2019.4010.5011.500.6571
LFYohendrick Pinango3641.01600.2129neutral0.32600.28200.41807.6045.7091.207.6025.9021.906.30-0.4571
DHGeorge Springer3851.00530.0701neutral0.31200.22400.38108.3036.9088.1014.602418.3010.900.2286
RFJesús Sánchez3381.05520.7365neutral0.34400.28500.477011.5046.509111.4024.8020.904.200.1143
CFNathan Lukes1620.9871-0.1722negative_batter_regression0.30400.27900.3490128.8085.9011.3018.5016.204.40-1
2BErnie Clement1200.9332-0.8910negative_batter_regression0.26700.25000.34102.8025.1085.4016.1016.2010.803-1.8000
3BKazuma Okamoto1121.04190.5587neutral0.32300.21900.433014.4049.1091.8017.2034.4032.509.80-0.1714
CBrandon Valenzuela911.02760.3680neutral0.35000.26500.44809.2036.7089.201625.8022.8011.400.0857
SSAndrés Giménez2120.9412-0.7842neutral0.26500.22400.31603.8023.7086.2010.9025.3019.903.20-0.6000

Home Batter Inputs

PosPlayerESPN RankOff FactorQualityRegressionxwOBAxBAxSLGBarrel%HardHit%EVLAWhiff%K%BB%Regression Edge
RFWilyer Abreu251.05160.6886neutral0.33600.26100.455011.1041.5089.7018.2022.3019.808.60-0.0286
1BWillson Contreras221.08801.1734neutral0.38300.26600.50401444.5090.1016.9030.30269.40-0.6286
DHMickey Gasper3170.9888-0.1490neutral0.28200.22500.33905.6040.808915.6019.6020.207.10-0.2286
CFCeddanne Rafaela130.9790-0.2797negative_batter_regression0.29600.24600.36606.3036.3086.6010.7024.2020.505.20-1.4286
SSIsiah Kiner-Falefa1060.9996-0.0053neutral0.31900.28400.35803.1026.3082.208.5017.80149.300.2571
CConnor Wong1360.9925-0.1003neutral0.31200.24000.35103.4037.3087.3010.9024.5021.309-0.8000
3BCaleb Durbin1960.9732-0.3567positive_batter_regression0.28000.23800.32402.8029.90859.5014.7014.205.800.8571
LFJarren Duran1181.00920.1227neutral0.29900.23000.395011.5039.509013.9035.10296.800.1714
2BAndruw Monasterio3990.9892-0.1437neutral0.28100.23600.35606.303887.9020.7018.5025.206.10-0.4571
Raw Savant Batter Quality JSON
{
  "home": {
    "applied": true,
    "offense_factor": 1.0079,
    "raw_average_factor": 1.0079,
    "team_espn_average_rank": 148.0,
    "coverage_weight": 1.0,
    "covered_batters": 9,
    "missing_batters": 0,
    "players": [
      {
        "position": "RF",
        "player_id": "677800",
        "player_name": "Wilyer Abreu",
        "offense_factor": 1.0516,
        "quality_score": 0.6886,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "677800",
          "espn_id": 4990055,
          "player_name": "Wilyer Abreu",
          "team": "BOS",
          "role": "batter",
          "espn_rank": 25,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 25,
            "gp_value": 70.0,
            "gp_rank": 72,
            "ab_value": 273.0,
            "ab_rank": 31,
            "r_value": 31.0,
            "r_rank": 109,
            "h_value": 76.0,
            "h_rank": 24,
            "avg_value": 0.2783882,
            "avg_rank": 40.0,
            "2b_value": 16.0,
            "2b_rank": 17,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 8.0,
            "hr_rank": 98,
            "rbi_value": 34.0,
            "rbi_rank": 81,
            "tb_value": 118.0,
            "tb_rank": 479,
            "bb_value": 26.0,
            "bb_rank": 82,
            "so_value": 60.0,
            "so_rank": 85,
            "sb_value": 5.0,
            "sb_rank": 94,
            "obp_value": 0.3377483,
            "obp_rank": "76",
            "slg_value": 0.4322344,
            "slg_rank": "71",
            "ops_value": 0.7699827,
            "ops_rank": 147.0,
            "war_value": 2.59,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 225.0,
          "k_percent": 19.8,
          "bb_percent": 8.6,
          "woba": 0.337,
          "xwoba": 0.336,
          "xba": 0.261,
          "xslg": 0.455,
          "sweet_spot_percent": 34.6,
          "barrel_batted_rate": 11.1,
          "hard_hit_percent": 41.5,
          "exit_velocity_avg": 89.7,
          "launch_angle_avg": 18.2,
          "whiff_percent": 22.3,
          "swing_percent": 49.7
        },
        "components": {
          "expected_quality": 0.8054,
          "regression_edge": -0.0286,
          "xwoba_edge": 0.9143,
          "xba_edge": 0.6429,
          "xslg_edge": 1.1857,
          "barrel_edge": 0.9556,
          "hard_hit_edge": 0.4286,
          "exit_velocity_edge": 0.36,
          "sweet_spot_edge": 0.2167,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "1B",
        "player_id": "575929",
        "player_name": "Willson Contreras",
        "offense_factor": 1.088,
        "quality_score": 1.1734,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "575929",
          "espn_id": 32532,
          "player_name": "Willson Contreras",
          "team": "BOS",
          "role": "batter",
          "espn_rank": 22,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 22,
            "gp_value": 69.0,
            "gp_rank": 83,
            "ab_value": 245.0,
            "ab_rank": 99,
            "r_value": 34.0,
            "r_rank": 83,
            "h_value": 72.0,
            "h_rank": 44,
            "avg_value": 0.2938775,
            "avg_rank": 15.0,
            "2b_value": 11.0,
            "2b_rank": 110,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 16.0,
            "hr_rank": 17,
            "rbi_value": 43.0,
            "rbi_rank": 27,
            "tb_value": 135.0,
            "tb_rank": 239,
            "bb_value": 27.0,
            "bb_rank": 75,
            "so_value": 75.0,
            "so_rank": 31,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3888888,
            "obp_rank": "13",
            "slg_value": 0.5510204,
            "slg_rank": "9",
            "ops_value": 0.9399092,
            "ops_rank": 4.0,
            "war_value": 2.75,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 216.0,
          "k_percent": 26.0,
          "bb_percent": 9.4,
          "woba": 0.405,
          "xwoba": 0.383,
          "xba": 0.266,
          "xslg": 0.504,
          "sweet_spot_percent": 33.5,
          "barrel_batted_rate": 14.0,
          "hard_hit_percent": 44.5,
          "exit_velocity_avg": 90.1,
          "launch_angle_avg": 16.9,
          "whiff_percent": 30.3,
          "swing_percent": 49.0
        },
        "components": {
          "expected_quality": 1.492,
          "regression_edge": -0.6286,
          "xwoba_edge": 2.2571,
          "xba_edge": 0.7857,
          "xslg_edge": 1.8857,
          "barrel_edge": 1.6,
          "hard_hit_edge": 0.8571,
          "exit_velocity_edge": 0.52,
          "sweet_spot_edge": 0.0333,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "DH",
        "player_id": "681508",
        "player_name": "Mickey Gasper",
        "offense_factor": 0.9888,
        "quality_score": -0.149,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "681508",
          "espn_id": 5132012,
          "player_name": "Mickey Gasper",
          "team": "BOS",
          "role": "batter",
          "espn_rank": 317,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 317,
            "gp_value": 28.0,
            "gp_rank": 367,
            "ab_value": 89.0,
            "ab_rank": 344,
            "r_value": 11.0,
            "r_rank": 327,
            "h_value": 23.0,
            "h_rank": 312,
            "avg_value": 0.2584269,
            "avg_rank": null,
            "2b_value": 4.0,
            "2b_rank": 307,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 0.0,
            "hr_rank": 441,
            "rbi_value": 6.0,
            "rbi_rank": 383,
            "tb_value": 29.0,
            "tb_rank": 2086,
            "bb_value": 7.0,
            "bb_rank": 333,
            "so_value": 20.0,
            "so_rank": 352,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3163265,
            "obp_rank": "-",
            "slg_value": 0.3258426,
            "slg_rank": "-",
            "ops_value": 0.6421691,
            "ops_rank": null,
            "war_value": 0.06,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 45.0,
          "k_percent": 20.2,
          "bb_percent": 7.1,
          "woba": 0.29,
          "xwoba": 0.282,
          "xba": 0.225,
          "xslg": 0.339,
          "sweet_spot_percent": 29.6,
          "barrel_batted_rate": 5.6,
          "hard_hit_percent": 40.8,
          "exit_velocity_avg": 89.0,
          "launch_angle_avg": 15.6,
          "whiff_percent": 19.6,
          "swing_percent": 42.7
        },
        "components": {
          "expected_quality": -0.3479,
          "regression_edge": -0.2286,
          "xwoba_edge": -0.6286,
          "xba_edge": -0.3857,
          "xslg_edge": -0.4714,
          "barrel_edge": -0.2667,
          "hard_hit_edge": 0.3286,
          "exit_velocity_edge": 0.08,
          "sweet_spot_edge": -0.6167,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "CF",
        "player_id": "678882",
        "player_name": "Ceddanne Rafaela",
        "offense_factor": 0.979,
        "quality_score": -0.2797,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "678882",
          "espn_id": 4987382,
          "player_name": "Ceddanne Rafaela",
          "team": "BOS",
          "role": "batter",
          "espn_rank": 13,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 13,
            "gp_value": 68.0,
            "gp_rank": 104,
            "ab_value": 248.0,
            "ab_rank": 94,
            "r_value": 29.0,
            "r_rank": 128,
            "h_value": 71.0,
            "h_rank": 46,
            "avg_value": 0.2862903,
            "avg_rank": 25.0,
            "2b_value": 15.0,
            "2b_rank": 27,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 32.0,
            "rbi_rank": 96,
            "tb_value": 111.0,
            "tb_rank": 464,
            "bb_value": 14.0,
            "bb_rank": 215,
            "so_value": 55.0,
            "so_rank": 106,
            "sb_value": 7.0,
            "sb_rank": 62,
            "obp_value": 0.3395522,
            "obp_rank": "72",
            "slg_value": 0.4475806,
            "slg_rank": "57",
            "ops_value": 0.7871328,
            "ops_rank": 129.0,
            "war_value": 3.05,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 195.0,
          "k_percent": 20.5,
          "bb_percent": 5.2,
          "woba": 0.346,
          "xwoba": 0.296,
          "xba": 0.246,
          "xslg": 0.366,
          "sweet_spot_percent": 38.3,
          "barrel_batted_rate": 6.3,
          "hard_hit_percent": 36.3,
          "exit_velocity_avg": 86.6,
          "launch_angle_avg": 10.7,
          "whiff_percent": 24.2,
          "swing_percent": 52.2
        },
        "components": {
          "expected_quality": -0.1343,
          "regression_edge": -1.4286,
          "xwoba_edge": -0.2286,
          "xba_edge": 0.2143,
          "xslg_edge": -0.0857,
          "barrel_edge": -0.1111,
          "hard_hit_edge": -0.3143,
          "exit_velocity_edge": -0.88,
          "sweet_spot_edge": 0.8333,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "SS",
        "player_id": "643396",
        "player_name": "Isiah Kiner-Falefa",
        "offense_factor": 0.9996,
        "quality_score": -0.0053,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "643396",
          "espn_id": 33572,
          "player_name": "Isiah Kiner-Falefa",
          "team": "BOS",
          "role": "batter",
          "espn_rank": 106,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 106,
            "gp_value": 46.0,
            "gp_rank": 263,
            "ab_value": 116.0,
            "ab_rank": 287,
            "r_value": 18.0,
            "r_rank": 232,
            "h_value": 32.0,
            "h_rank": 255,
            "avg_value": 0.275862,
            "avg_rank": null,
            "2b_value": 4.0,
            "2b_rank": 307,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 1.0,
            "hr_rank": 365,
            "rbi_value": 12.0,
            "rbi_rank": 292,
            "tb_value": 39.0,
            "tb_rank": 2045,
            "bb_value": 12.0,
            "bb_rank": 253,
            "so_value": 18.0,
            "so_rank": 370,
            "sb_value": 7.0,
            "sb_rank": 62,
            "obp_value": 0.34375,
            "obp_rank": "-",
            "slg_value": 0.3362068,
            "slg_rank": "-",
            "ops_value": 0.6799568,
            "ops_rank": null,
            "war_value": 1.18,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 65.0,
          "k_percent": 14.0,
          "bb_percent": 9.3,
          "woba": 0.31,
          "xwoba": 0.319,
          "xba": 0.284,
          "xslg": 0.358,
          "sweet_spot_percent": 38.4,
          "barrel_batted_rate": 3.1,
          "hard_hit_percent": 26.3,
          "exit_velocity_avg": 82.2,
          "launch_angle_avg": 8.5,
          "whiff_percent": 17.8,
          "swing_percent": 49.5
        },
        "components": {
          "expected_quality": -0.0555,
          "regression_edge": 0.2571,
          "xwoba_edge": 0.4286,
          "xba_edge": 1.3,
          "xslg_edge": -0.2,
          "barrel_edge": -0.8222,
          "hard_hit_edge": -1.7429,
          "exit_velocity_edge": -2.5,
          "sweet_spot_edge": 0.85,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "C",
        "player_id": "657136",
        "player_name": "Connor Wong",
        "offense_factor": 0.9925,
        "quality_score": -0.1003,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "657136",
          "espn_id": 40086,
          "player_name": "Connor Wong",
          "team": "BOS",
          "role": "batter",
          "espn_rank": 136,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 136,
            "gp_value": 28.0,
            "gp_rank": 367,
            "ab_value": 76.0,
            "ab_rank": 368,
            "r_value": 10.0,
            "r_rank": 341,
            "h_value": 21.0,
            "h_rank": 328,
            "avg_value": 0.2763157,
            "avg_rank": null,
            "2b_value": 8.0,
            "2b_rank": 188,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 0.0,
            "hr_rank": 441,
            "rbi_value": 10.0,
            "rbi_rank": 319,
            "tb_value": 29.0,
            "tb_rank": 2227,
            "bb_value": 8.0,
            "bb_rank": 314,
            "so_value": 19.0,
            "so_rank": 360,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.367816,
            "obp_rank": "-",
            "slg_value": 0.3815789,
            "slg_rank": "-",
            "ops_value": 0.7493949,
            "ops_rank": null,
            "war_value": 0.95,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 65.0,
          "k_percent": 21.3,
          "bb_percent": 9.0,
          "woba": 0.34,
          "xwoba": 0.312,
          "xba": 0.24,
          "xslg": 0.351,
          "sweet_spot_percent": 30.5,
          "barrel_batted_rate": 3.4,
          "hard_hit_percent": 37.3,
          "exit_velocity_avg": 87.3,
          "launch_angle_avg": 10.9,
          "whiff_percent": 24.5,
          "swing_percent": 46.5
        },
        "components": {
          "expected_quality": -0.129,
          "regression_edge": -0.8,
          "xwoba_edge": 0.2286,
          "xba_edge": 0.0429,
          "xslg_edge": -0.3,
          "barrel_edge": -0.7556,
          "hard_hit_edge": -0.1714,
          "exit_velocity_edge": -0.6,
          "sweet_spot_edge": -0.4667,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "3B",
        "player_id": "702332",
        "player_name": "Caleb Durbin",
        "offense_factor": 0.9732,
        "quality_score": -0.3567,
        "regression_flag": "positive_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "702332",
          "espn_id": 5007615,
          "player_name": "Caleb Durbin",
          "team": "BOS",
          "role": "batter",
          "espn_rank": 196,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 196,
            "gp_value": 64.0,
            "gp_rank": 146,
            "ab_value": 205.0,
            "ab_rank": 151,
            "r_value": 21.0,
            "r_rank": 203,
            "h_value": 39.0,
            "h_rank": 210,
            "avg_value": 0.1902439,
            "avg_rank": 160.0,
            "2b_value": 13.0,
            "2b_rank": 61,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 3.0,
            "hr_rank": 243,
            "rbi_value": 26.0,
            "rbi_rank": 146,
            "tb_value": 63.0,
            "tb_rank": 1144,
            "bb_value": 13.0,
            "bb_rank": 237,
            "so_value": 32.0,
            "so_rank": 259,
            "sb_value": 5.0,
            "sb_rank": 94,
            "obp_value": 0.25,
            "obp_rank": "162",
            "slg_value": 0.307317,
            "slg_rank": "159",
            "ops_value": 0.557317,
            "ops_rank": 321.0,
            "war_value": 0.55,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 164.0,
          "k_percent": 14.2,
          "bb_percent": 5.8,
          "woba": 0.25,
          "xwoba": 0.28,
          "xba": 0.238,
          "xslg": 0.324,
          "sweet_spot_percent": 26.0,
          "barrel_batted_rate": 2.8,
          "hard_hit_percent": 29.9,
          "exit_velocity_avg": 85.0,
          "launch_angle_avg": 9.5,
          "whiff_percent": 14.7,
          "swing_percent": 45.2
        },
        "components": {
          "expected_quality": -0.696,
          "regression_edge": 0.8571,
          "xwoba_edge": -0.6857,
          "xba_edge": -0.0143,
          "xslg_edge": -0.6857,
          "barrel_edge": -0.8889,
          "hard_hit_edge": -1.2286,
          "exit_velocity_edge": -1.52,
          "sweet_spot_edge": -1.2167,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "LF",
        "player_id": "680776",
        "player_name": "Jarren Duran",
        "offense_factor": 1.0092,
        "quality_score": 0.1227,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "680776",
          "espn_id": 41610,
          "player_name": "Jarren Duran",
          "team": "BOS",
          "role": "batter",
          "espn_rank": 118,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 118,
            "gp_value": 66.0,
            "gp_rank": 132,
            "ab_value": 268.0,
            "ab_rank": 42,
            "r_value": 35.0,
            "r_rank": 73,
            "h_value": 57.0,
            "h_rank": 109,
            "avg_value": 0.2126865,
            "avg_rank": 147.0,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 2.0,
            "3b_rank": 17,
            "hr_value": 12.0,
            "hr_rank": 46,
            "rbi_value": 37.0,
            "rbi_rank": 54,
            "tb_value": 106.0,
            "tb_rank": 435,
            "bb_value": 20.0,
            "bb_rank": 146,
            "so_value": 85.0,
            "so_rank": 13,
            "sb_value": 11.0,
            "sb_rank": 28,
            "obp_value": 0.2730375,
            "obp_rank": "158",
            "slg_value": 0.3955223,
            "slg_rank": "108",
            "ops_value": 0.6685598,
            "ops_rank": 50.0,
            "war_value": 1.13,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 215.0,
          "k_percent": 29.0,
          "bb_percent": 6.8,
          "woba": 0.293,
          "xwoba": 0.299,
          "xba": 0.23,
          "xslg": 0.395,
          "sweet_spot_percent": 31.9,
          "barrel_batted_rate": 11.5,
          "hard_hit_percent": 39.5,
          "exit_velocity_avg": 90.0,
          "launch_angle_avg": 13.9,
          "whiff_percent": 35.1,
          "swing_percent": 48.6
        },
        "components": {
          "expected_quality": 0.1181,
          "regression_edge": 0.1714,
          "xwoba_edge": -0.1429,
          "xba_edge": -0.2429,
          "xslg_edge": 0.3286,
          "barrel_edge": 1.0444,
          "hard_hit_edge": 0.1429,
          "exit_velocity_edge": 0.48,
          "sweet_spot_edge": -0.2333,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "2B",
        "player_id": "655316",
        "player_name": "Andruw Monasterio",
        "offense_factor": 0.9892,
        "quality_score": -0.1437,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "655316",
          "espn_id": 36950,
          "player_name": "Andruw Monasterio",
          "team": "BOS",
          "role": "batter",
          "espn_rank": 399,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 399,
            "gp_value": 39.0,
            "gp_rank": 314,
            "ab_value": 108.0,
            "ab_rank": 306,
            "r_value": 11.0,
            "r_rank": 327,
            "h_value": 26.0,
            "h_rank": 288,
            "avg_value": 0.2407407,
            "avg_rank": null,
            "2b_value": 10.0,
            "2b_rank": 125,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 2.0,
            "hr_rank": 301,
            "rbi_value": 11.0,
            "rbi_rank": 306,
            "tb_value": 42.0,
            "tb_rank": 1704,
            "bb_value": 7.0,
            "bb_rank": 333,
            "so_value": 29.0,
            "so_rank": 277,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.2869565,
            "obp_rank": "-",
            "slg_value": 0.3888888,
            "slg_rank": "-",
            "ops_value": 0.6758453,
            "ops_rank": null,
            "war_value": -0.1,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 95.0,
          "k_percent": 25.2,
          "bb_percent": 6.1,
          "woba": 0.297,
          "xwoba": 0.281,
          "xba": 0.236,
          "xslg": 0.356,
          "sweet_spot_percent": 36.7,
          "barrel_batted_rate": 6.3,
          "hard_hit_percent": 38.0,
          "exit_velocity_avg": 87.9,
          "launch_angle_avg": 20.7,
          "whiff_percent": 18.5,
          "swing_percent": 45.8
        },
        "components": {
          "expected_quality": -0.297,
          "regression_edge": -0.4571,
          "xwoba_edge": -0.6571,
          "xba_edge": -0.0714,
          "xslg_edge": -0.2286,
          "barrel_edge": -0.1111,
          "hard_hit_edge": -0.0714,
          "exit_velocity_edge": -0.36,
          "sweet_spot_edge": 0.5667,
          "launch_angle_hr_bonus": 0.0
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "away": {
    "applied": true,
    "offense_factor": 1.0073,
    "raw_average_factor": 1.0073,
    "team_espn_average_rank": 217.44,
    "coverage_weight": 1.0,
    "covered_batters": 9,
    "missing_batters": 0,
    "players": [
      {
        "position": "1B",
        "player_id": "665489",
        "player_name": "Vladimir Guerrero Jr.",
        "offense_factor": 1.0585,
        "quality_score": 0.7805,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "665489",
          "espn_id": 35002,
          "player_name": "Vladimir Guerrero Jr.",
          "team": "TOR",
          "role": "batter",
          "espn_rank": 173,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 173,
            "gp_value": 70.0,
            "gp_rank": 72,
            "ab_value": 254.0,
            "ab_rank": 84,
            "r_value": 39.0,
            "r_rank": 57,
            "h_value": 71.0,
            "h_rank": 46,
            "avg_value": 0.2795275,
            "avg_rank": 34.0,
            "2b_value": 12.0,
            "2b_rank": 80,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 3.0,
            "hr_rank": 243,
            "rbi_value": 29.0,
            "rbi_rank": 122,
            "tb_value": 92.0,
            "tb_rank": 1243,
            "bb_value": 34.0,
            "bb_rank": 40,
            "so_value": 31.0,
            "so_rank": 266,
            "sb_value": 5.0,
            "sb_rank": 94,
            "obp_value": 0.3682432,
            "obp_rank": "31",
            "slg_value": 0.3622047,
            "slg_rank": "130",
            "ops_value": 0.7304479,
            "ops_rank": 99.0,
            "war_value": 0.68,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 219.0,
          "k_percent": 10.5,
          "bb_percent": 11.5,
          "woba": 0.325,
          "xwoba": 0.348,
          "xba": 0.293,
          "xslg": 0.411,
          "sweet_spot_percent": 28.6,
          "barrel_batted_rate": 6.2,
          "hard_hit_percent": 44.1,
          "exit_velocity_avg": 90.3,
          "launch_angle_avg": 8.2,
          "whiff_percent": 19.4,
          "swing_percent": 48.3
        },
        "components": {
          "expected_quality": 0.8047,
          "regression_edge": 0.6571,
          "xwoba_edge": 1.2571,
          "xba_edge": 1.5571,
          "xslg_edge": 0.5571,
          "barrel_edge": -0.1333,
          "hard_hit_edge": 0.8,
          "exit_velocity_edge": 0.6,
          "sweet_spot_edge": -0.7833,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "LF",
        "player_id": "682818",
        "player_name": "Yohendrick Pinango",
        "offense_factor": 1.016,
        "quality_score": 0.2129,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "682818",
          "espn_id": 4917684,
          "player_name": "Yohendrick Pinango",
          "team": "TOR",
          "role": "batter",
          "espn_rank": 364,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 364,
            "gp_value": 40.0,
            "gp_rank": 307,
            "ab_value": 120.0,
            "ab_rank": 280,
            "r_value": 9.0,
            "r_rank": 353,
            "h_value": 35.0,
            "h_rank": 232,
            "avg_value": 0.2916666,
            "avg_rank": null,
            "2b_value": 6.0,
            "2b_rank": 235,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 4.0,
            "hr_rank": 203,
            "rbi_value": 18.0,
            "rbi_rank": 231,
            "tb_value": 53.0,
            "tb_rank": 1464,
            "bb_value": 8.0,
            "bb_rank": 314,
            "so_value": 28.0,
            "so_rank": 286,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3359375,
            "obp_rank": "-",
            "slg_value": 0.4416666,
            "slg_rank": "-",
            "ops_value": 0.7776041,
            "ops_rank": null,
            "war_value": -0.03,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 79.0,
          "k_percent": 21.9,
          "bb_percent": 6.3,
          "woba": 0.342,
          "xwoba": 0.326,
          "xba": 0.282,
          "xslg": 0.418,
          "sweet_spot_percent": 34.8,
          "barrel_batted_rate": 7.6,
          "hard_hit_percent": 45.7,
          "exit_velocity_avg": 91.2,
          "launch_angle_avg": 7.6,
          "whiff_percent": 25.9,
          "swing_percent": 50.6
        },
        "components": {
          "expected_quality": 0.6246,
          "regression_edge": -0.4571,
          "xwoba_edge": 0.6286,
          "xba_edge": 1.2429,
          "xslg_edge": 0.6571,
          "barrel_edge": 0.1778,
          "hard_hit_edge": 1.0286,
          "exit_velocity_edge": 0.96,
          "sweet_spot_edge": 0.25,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "DH",
        "player_id": "543807",
        "player_name": "George Springer",
        "offense_factor": 1.0053,
        "quality_score": 0.0701,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "543807",
          "espn_id": 32078,
          "player_name": "George Springer",
          "team": "TOR",
          "role": "batter",
          "espn_rank": 385,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 385,
            "gp_value": 52.0,
            "gp_rank": 223,
            "ab_value": 198.0,
            "ab_rank": 160,
            "r_value": 22.0,
            "r_rank": 191,
            "h_value": 42.0,
            "h_rank": 193,
            "avg_value": 0.2121212,
            "avg_rank": 149.0,
            "2b_value": 10.0,
            "2b_rank": 125,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 19.0,
            "rbi_rank": 216,
            "tb_value": 73.0,
            "tb_rank": 1063,
            "bb_value": 25.0,
            "bb_rank": 90,
            "so_value": 42.0,
            "so_rank": 178,
            "sb_value": 6.0,
            "sb_rank": 79,
            "obp_value": 0.30837,
            "obp_rank": "123",
            "slg_value": 0.3686868,
            "slg_rank": "124",
            "ops_value": 0.6770568,
            "ops_rank": 247.0,
            "war_value": -0.08,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 161.0,
          "k_percent": 18.3,
          "bb_percent": 10.9,
          "woba": 0.304,
          "xwoba": 0.312,
          "xba": 0.224,
          "xslg": 0.381,
          "sweet_spot_percent": 30.6,
          "barrel_batted_rate": 8.3,
          "hard_hit_percent": 36.9,
          "exit_velocity_avg": 88.1,
          "launch_angle_avg": 14.6,
          "whiff_percent": 24.0,
          "swing_percent": 48.8
        },
        "components": {
          "expected_quality": 0.0742,
          "regression_edge": 0.2286,
          "xwoba_edge": 0.2286,
          "xba_edge": -0.4143,
          "xslg_edge": 0.1286,
          "barrel_edge": 0.3333,
          "hard_hit_edge": -0.2286,
          "exit_velocity_edge": -0.28,
          "sweet_spot_edge": -0.45,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "RF",
        "player_id": "660821",
        "player_name": "Jesús Sánchez",
        "offense_factor": 1.0552,
        "quality_score": 0.7365,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "660821",
          "espn_id": 39957,
          "player_name": "Jesus Sanchez",
          "team": "TOR",
          "role": "batter",
          "espn_rank": 338,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 338,
            "gp_value": 67.0,
            "gp_rank": 117,
            "ab_value": 198.0,
            "ab_rank": 160,
            "r_value": 22.0,
            "r_rank": 191,
            "h_value": 57.0,
            "h_rank": 109,
            "avg_value": 0.2878787,
            "avg_rank": null,
            "2b_value": 14.0,
            "2b_rank": 45,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 29.0,
            "rbi_rank": 122,
            "tb_value": 92.0,
            "tb_rank": 899,
            "bb_value": 9.0,
            "bb_rank": 295,
            "so_value": 45.0,
            "so_rank": 158,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3255813,
            "obp_rank": "-",
            "slg_value": 0.4646464,
            "slg_rank": "-",
            "ops_value": 0.7902277,
            "ops_rank": null,
            "war_value": 0.01,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 173.0,
          "k_percent": 20.9,
          "bb_percent": 4.2,
          "woba": 0.34,
          "xwoba": 0.344,
          "xba": 0.285,
          "xslg": 0.477,
          "sweet_spot_percent": 34.4,
          "barrel_batted_rate": 11.5,
          "hard_hit_percent": 46.5,
          "exit_velocity_avg": 91.0,
          "launch_angle_avg": 11.4,
          "whiff_percent": 24.8,
          "swing_percent": 55.5
        },
        "components": {
          "expected_quality": 1.0705,
          "regression_edge": 0.1143,
          "xwoba_edge": 1.1429,
          "xba_edge": 1.3286,
          "xslg_edge": 1.5,
          "barrel_edge": 1.0444,
          "hard_hit_edge": 1.1429,
          "exit_velocity_edge": 0.88,
          "sweet_spot_edge": 0.1833,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "CF",
        "player_id": "664770",
        "player_name": "Nathan Lukes",
        "offense_factor": 0.9871,
        "quality_score": -0.1722,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "664770",
          "espn_id": 35682,
          "player_name": "Nathan Lukes",
          "team": "TOR",
          "role": "batter",
          "espn_rank": 162,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 162,
            "gp_value": 40.0,
            "gp_rank": 307,
            "ab_value": 124.0,
            "ab_rank": 271,
            "r_value": 14.0,
            "r_rank": 287,
            "h_value": 39.0,
            "h_rank": 210,
            "avg_value": 0.3145161,
            "avg_rank": null,
            "2b_value": 7.0,
            "2b_rank": 206,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 1.0,
            "hr_rank": 365,
            "rbi_value": 13.0,
            "rbi_rank": 285,
            "tb_value": 49.0,
            "tb_rank": 1899,
            "bb_value": 6.0,
            "bb_rank": 359,
            "so_value": 22.0,
            "so_rank": 331,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3629629,
            "obp_rank": "-",
            "slg_value": 0.3951612,
            "slg_rank": "-",
            "ops_value": 0.7581241,
            "ops_rank": null,
            "war_value": 0.78,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 68.0,
          "k_percent": 16.2,
          "bb_percent": 4.4,
          "woba": 0.339,
          "xwoba": 0.304,
          "xba": 0.279,
          "xslg": 0.349,
          "sweet_spot_percent": 32.7,
          "barrel_batted_rate": 1.0,
          "hard_hit_percent": 28.8,
          "exit_velocity_avg": 85.9,
          "launch_angle_avg": 11.3,
          "whiff_percent": 18.5,
          "swing_percent": 51.1
        },
        "components": {
          "expected_quality": -0.2821,
          "regression_edge": -1.0,
          "xwoba_edge": 0.0,
          "xba_edge": 1.1571,
          "xslg_edge": -0.3286,
          "barrel_edge": -1.2889,
          "hard_hit_edge": -1.3857,
          "exit_velocity_edge": -1.16,
          "sweet_spot_edge": -0.1,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "2B",
        "player_id": "676391",
        "player_name": "Ernie Clement",
        "offense_factor": 0.9332,
        "quality_score": -0.891,
        "regression_flag": "negative_batter_regression",
        "espn_rank": {
          "available": true,
          "player_id": "676391",
          "espn_id": 41287,
          "player_name": "Ernie Clement",
          "team": "TOR",
          "role": "batter",
          "espn_rank": 120,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 120,
            "gp_value": 73.0,
            "gp_rank": 26,
            "ab_value": 285.0,
            "ab_rank": 15,
            "r_value": 34.0,
            "r_rank": 83,
            "h_value": 84.0,
            "h_rank": 5,
            "avg_value": 0.2947368,
            "avg_rank": 13.0,
            "2b_value": 20.0,
            "2b_rank": 3,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 28.0,
            "rbi_rank": 131,
            "tb_value": 127.0,
            "tb_rank": 493,
            "bb_value": 9.0,
            "bb_rank": 295,
            "so_value": 32.0,
            "so_rank": 259,
            "sb_value": 2.0,
            "sb_rank": 183,
            "obp_value": 0.3141891,
            "obp_rank": "111",
            "slg_value": 0.445614,
            "slg_rank": "60",
            "ops_value": 0.7598031,
            "ops_rank": 51.0,
            "war_value": 1.1,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 219.0,
          "k_percent": 10.8,
          "bb_percent": 3.0,
          "woba": 0.33,
          "xwoba": 0.267,
          "xba": 0.25,
          "xslg": 0.341,
          "sweet_spot_percent": 32.5,
          "barrel_batted_rate": 2.8,
          "hard_hit_percent": 25.1,
          "exit_velocity_avg": 85.4,
          "launch_angle_avg": 16.1,
          "whiff_percent": 16.2,
          "swing_percent": 58.4
        },
        "components": {
          "expected_quality": -0.7478,
          "regression_edge": -1.8,
          "xwoba_edge": -1.0571,
          "xba_edge": 0.3286,
          "xslg_edge": -0.4429,
          "barrel_edge": -0.8889,
          "hard_hit_edge": -1.9143,
          "exit_velocity_edge": -1.36,
          "sweet_spot_edge": -0.1333,
          "launch_angle_hr_bonus": 0.0
        }
      },
      {
        "position": "3B",
        "player_id": "672960",
        "player_name": "Kazuma Okamoto",
        "offense_factor": 1.0419,
        "quality_score": 0.5587,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "672960",
          "espn_id": 5134636,
          "player_name": "Kazuma Okamoto",
          "team": "TOR",
          "role": "batter",
          "espn_rank": 112,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 112,
            "gp_value": 72.0,
            "gp_rank": 37,
            "ab_value": 261.0,
            "ab_rank": 65,
            "r_value": 35.0,
            "r_rank": 73,
            "h_value": 60.0,
            "h_rank": 96,
            "avg_value": 0.229885,
            "avg_rank": 128.0,
            "2b_value": 9.0,
            "2b_rank": 154,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 15.0,
            "hr_rank": 23,
            "rbi_value": 42.0,
            "rbi_rank": 31,
            "tb_value": 114.0,
            "tb_rank": 707,
            "bb_value": 29.0,
            "bb_rank": 61,
            "so_value": 96.0,
            "so_rank": 6,
            "sb_value": 0.0,
            "sb_rank": 341,
            "obp_value": 0.3118644,
            "obp_rank": "115",
            "slg_value": 0.4367816,
            "slg_rank": "68",
            "ops_value": 0.748646,
            "ops_rank": 47.0,
            "war_value": 1.15,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 222.0,
          "k_percent": 32.5,
          "bb_percent": 9.8,
          "woba": 0.329,
          "xwoba": 0.323,
          "xba": 0.219,
          "xslg": 0.433,
          "sweet_spot_percent": 34.1,
          "barrel_batted_rate": 14.4,
          "hard_hit_percent": 49.1,
          "exit_velocity_avg": 91.8,
          "launch_angle_avg": 17.2,
          "whiff_percent": 34.4,
          "swing_percent": 44.2
        },
        "components": {
          "expected_quality": 0.6775,
          "regression_edge": -0.1714,
          "xwoba_edge": 0.5429,
          "xba_edge": -0.5571,
          "xslg_edge": 0.8714,
          "barrel_edge": 1.6889,
          "hard_hit_edge": 1.5143,
          "exit_velocity_edge": 1.2,
          "sweet_spot_edge": 0.1333,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "C",
        "player_id": "678218",
        "player_name": "Brandon Valenzuela",
        "offense_factor": 1.0276,
        "quality_score": 0.368,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "678218",
          "espn_id": 4918248,
          "player_name": "Brandon Valenzuela",
          "team": "TOR",
          "role": "batter",
          "espn_rank": 91,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 91,
            "gp_value": 47.0,
            "gp_rank": 251,
            "ab_value": 130.0,
            "ab_rank": 263,
            "r_value": 17.0,
            "r_rank": 240,
            "h_value": 33.0,
            "h_rank": 246,
            "avg_value": 0.2538461,
            "avg_rank": null,
            "2b_value": 5.0,
            "2b_rank": 259,
            "3b_value": 0.0,
            "3b_rank": 194,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 18.0,
            "rbi_rank": 231,
            "tb_value": 59.0,
            "tb_rank": 1250,
            "bb_value": 17.0,
            "bb_rank": 181,
            "so_value": 34.0,
            "so_rank": 240,
            "sb_value": 1.0,
            "sb_rank": 238,
            "obp_value": 0.3378378,
            "obp_rank": "-",
            "slg_value": 0.4538461,
            "slg_rank": "-",
            "ops_value": 0.7916839,
            "ops_rank": null,
            "war_value": 1.34,
            "war_rank": null
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 105.0,
          "k_percent": 22.8,
          "bb_percent": 11.4,
          "woba": 0.347,
          "xwoba": 0.35,
          "xba": 0.265,
          "xslg": 0.448,
          "sweet_spot_percent": 41.8,
          "barrel_batted_rate": 9.2,
          "hard_hit_percent": 36.7,
          "exit_velocity_avg": 89.2,
          "launch_angle_avg": 16.0,
          "whiff_percent": 25.8,
          "swing_percent": 50.3
        },
        "components": {
          "expected_quality": 0.8826,
          "regression_edge": 0.0857,
          "xwoba_edge": 1.3143,
          "xba_edge": 0.7571,
          "xslg_edge": 1.0857,
          "barrel_edge": 0.5333,
          "hard_hit_edge": -0.2571,
          "exit_velocity_edge": 0.16,
          "sweet_spot_edge": 1.4167,
          "launch_angle_hr_bonus": 0.2
        }
      },
      {
        "position": "SS",
        "player_id": "665926",
        "player_name": "Andrés Giménez",
        "offense_factor": 0.9412,
        "quality_score": -0.7842,
        "regression_flag": "neutral",
        "espn_rank": {
          "available": true,
          "player_id": "665926",
          "espn_id": 37729,
          "player_name": "Andres Gimenez",
          "team": "TOR",
          "role": "batter",
          "espn_rank": 212,
          "espn_total_ranked": 567,
          "metrics": {
            "espn_rank": 212,
            "gp_value": 70.0,
            "gp_rank": 72,
            "ab_value": 233.0,
            "ab_rank": 115,
            "r_value": 20.0,
            "r_rank": 213,
            "h_value": 54.0,
            "h_rank": 125,
            "avg_value": 0.2317596,
            "avg_rank": 126.0,
            "2b_value": 10.0,
            "2b_rank": 125,
            "3b_value": 1.0,
            "3b_rank": 72,
            "hr_value": 7.0,
            "hr_rank": 119,
            "rbi_value": 32.0,
            "rbi_rank": 96,
            "tb_value": 87.0,
            "tb_rank": 751,
            "bb_value": 8.0,
            "bb_rank": 314,
            "so_value": 50.0,
            "so_rank": 136,
            "sb_value": 10.0,
            "sb_rank": 37,
            "obp_value": 0.276,
            "obp_rank": "154",
            "slg_value": 0.3733905,
            "slg_rank": "121",
            "ops_value": 0.6493905,
            "ops_rank": 275.0,
            "war_value": 0.47,
            "war_rank": 1.0
          },
          "source": "espn_statistics_byathlete"
        },
        "metrics": {
          "pa": 191.0,
          "k_percent": 19.9,
          "bb_percent": 3.2,
          "woba": 0.286,
          "xwoba": 0.265,
          "xba": 0.224,
          "xslg": 0.316,
          "sweet_spot_percent": 28.0,
          "barrel_batted_rate": 3.8,
          "hard_hit_percent": 23.7,
          "exit_velocity_avg": 86.2,
          "launch_angle_avg": 10.9,
          "whiff_percent": 25.3,
          "swing_percent": 57.0
        },
        "components": {
          "expected_quality": -0.9526,
          "regression_edge": -0.6,
          "xwoba_edge": -1.1143,
          "xba_edge": -0.4143,
          "xslg_edge": -0.8,
          "barrel_edge": -0.6667,
          "hard_hit_edge": -2.1143,
          "exit_velocity_edge": -1.04,
          "sweet_spot_edge": -0.8833,
          "launch_angle_hr_bonus": 0.0
        }
      }
    ],
    "source": "all_players_stats.csv embedded Savant batter features"
  },
  "reason": "Baseball Savant hitter xwOBA, xBA, xSLG, exit velocity, launch angle, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted offense; ESPN rank is attached for reporting only"
}

Savant Pitcher Quality

Source: data/all_players_stats.csv embedded Savant pitcher and movement features. Starter quality modifies opposing run scoring and pitcher strikeout/walk/homer expectations.

TeamPitcherAvailableESPN RankQualitySample WtRun PrevK FactorBB FactorHR FactorRegressionxwOBAwOBAK%BB%Whiff%Barrel%HardHit%
Away TORTrue650.17310.45000.98531.01181.03060.9544neutral0.28000.296023.7012.6029.104.8033.60
Home BOSTrue73-0.07020.70801.00600.97490.95890.9949neutral0.31700.309019.906.3022.107.7035.50

Pitch Movement And Arsenal

TeamPitcherMovement AvailablePrimary PitchPitchesVeloSpinAxisHBIVBDropRel XRel ZExtensionArm AngleMovement Score
Away TORTrueNone9388.87198700000000-0.0481
Home BOSTrueNone7787.30251900000000-0.1359
Run FactorValue
away_runs_vs_home_pitcher1.0042
home_runs_vs_away_pitcher0.9934
home_pitcher_quality_edge-0.2433
Raw Savant Pitcher Quality JSON
{
  "applied": true,
  "home_pitcher": {
    "available": true,
    "pitcher_id": "543243",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 177.0,
      "k_percent": 19.9,
      "bb_percent": 6.3,
      "woba": 0.309,
      "xwoba": 0.317,
      "sweet_spot_percent": 37.6,
      "barrel_batted_rate": 7.7,
      "hard_hit_percent": 35.5,
      "avg_best_speed": 77.5161,
      "avg_hyper_speed": 93.718,
      "whiff_percent": 22.1,
      "swing_percent": 47.0
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": -0.023,
      "command_and_miss": -0.2021,
      "regression_edge": -0.2286,
      "xwoba_edge": -0.0571,
      "barrel_edge": -0.0889,
      "hard_hit_edge": 0.4,
      "whiff_edge": -0.5143,
      "bb_edge": 0.725,
      "pitch_design_score": -0.1359
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "543243",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 77,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 77,
        "pitch_usage": 0.0,
        "release_speed": 87.30296275663324,
        "release_spin_rate": 2518.9902176014775,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 77,
          "pitch_usage": 0.0,
          "release_speed": 87.30296275663324,
          "release_spin_rate": 2518.9902176014775,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 87.303,
        "release_spin_rate": 2518.9902,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": -0.1359,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": -0.9704,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": -0.0702,
    "sample_weight": 0.708,
    "run_prevention_factor": 1.006,
    "strikeout_factor": 0.9749,
    "walk_factor": 0.9589,
    "homer_factor": 0.9949,
    "woba_minus_xwoba": -0.008,
    "regression_flag": "neutral",
    "espn_rank": {
      "available": true,
      "player_id": "543243",
      "espn_id": 32082,
      "player_name": "Sonny Gray",
      "team": "BOS",
      "role": "pitcher",
      "espn_rank": 73,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 73,
        "gp_value": 12.0,
        "gp_rank": 352,
        "gs_value": 12.0,
        "gs_rank": 88,
        "qs_value": 7.0,
        "qs_rank": 29,
        "era_value": 3.032,
        "era_rank": null,
        "w_value": 8.0,
        "w_rank": 4,
        "l_value": 1.0,
        "l_rank": 275,
        "sv_value": 0.0,
        "sv_rank": 172,
        "hld_value": 0.0,
        "hld_rank": 256,
        "ip_value": 62.1,
        "ip_rank": 107,
        "h_value": 59.0,
        "h_rank": 101,
        "er_value": 21.0,
        "er_rank": 147,
        "hr_value": 6.0,
        "hr_rank": 125,
        "bb_value": 16.0,
        "bb_rank": 176,
        "k_value": 51.0,
        "k_rank": 108,
        "k_per_9_value": 7.3636365,
        "k_per_9_rank": 27,
        "whip_value": 1.2032,
        "whip_rank": null,
        "war_value": 1.22,
        "war_rank": null
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "away_pitcher": {
    "available": true,
    "pitcher_id": "702056",
    "player_name": "",
    "source": "all_players_stats.csv embedded Savant pitcher features",
    "source_url": null,
    "metrics": {
      "pa": 108.0,
      "k_percent": 23.7,
      "bb_percent": 12.6,
      "woba": 0.296,
      "xwoba": 0.28,
      "sweet_spot_percent": 36.8,
      "barrel_batted_rate": 4.8,
      "hard_hit_percent": 33.6,
      "avg_best_speed": 78.5791,
      "avg_hyper_speed": 93.4687,
      "whiff_percent": 29.1,
      "swing_percent": 48.5
    },
    "league_medians": {
      "pa": 70.0,
      "k_percent": 22.5,
      "bb_percent": 9.2,
      "woba": 0.312,
      "xwoba": 0.315,
      "sweet_spot_percent": 33.0,
      "barrel_batted_rate": 7.3,
      "hard_hit_percent": 38.3,
      "avg_best_speed": 77.8423,
      "avg_hyper_speed": 94.021,
      "whiff_percent": 25.7,
      "swing_percent": 47.2
    },
    "components": {
      "contact_quality": 0.5763,
      "command_and_miss": 0.0771,
      "regression_edge": 0.4571,
      "xwoba_edge": 1.0,
      "barrel_edge": 0.5556,
      "hard_hit_edge": 0.6714,
      "whiff_edge": 0.4857,
      "bb_edge": -0.85,
      "pitch_design_score": -0.0481
    },
    "pitch_movement_profile": {
      "available": true,
      "pitcher_id": "702056",
      "player_name": null,
      "source": "all_players_stats.csv embedded Savant pitcher movement features",
      "total_pitches": 93,
      "primary_pitch": {
        "pitch_type": null,
        "pitch_name": null,
        "pitches": 93,
        "pitch_usage": 0.0,
        "release_speed": 88.86933129477885,
        "release_spin_rate": 1987.1021688051485,
        "spin_axis": null,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": null,
        "release_pos_x": null,
        "release_pos_z": null,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "pitch_mix": [
        {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 93,
          "pitch_usage": 0.0,
          "release_speed": 88.86933129477885,
          "release_spin_rate": 1987.1021688051485,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        }
      ],
      "summary": {
        "release_speed": 88.8693,
        "release_spin_rate": 1987.1022,
        "spin_axis": 0.0,
        "horizontal_break_inches": 0.0,
        "induced_vertical_break_inches": 0.0,
        "vertical_break_with_gravity_inches": 0.0,
        "release_pos_x": 0.0,
        "release_pos_z": 0.0,
        "release_extension": 0.0,
        "arm_angle": 0.0,
        "whiff_percent": 0.0,
        "xwoba": 0.0,
        "hard_hit_percent": 0.0
      },
      "components": {
        "movement_score": -0.0481,
        "horizontal_break_edge": 0.0,
        "induced_vertical_break_edge": 0.0,
        "extension_edge": 0.0,
        "velocity_edge": -0.3438,
        "whiff_edge": 0.0,
        "xwoba_edge": -0.0,
        "hard_hit_edge": -0.0
      },
      "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
    },
    "quality_score": 0.1731,
    "sample_weight": 0.45,
    "run_prevention_factor": 0.9853,
    "strikeout_factor": 1.0118,
    "walk_factor": 1.0306,
    "homer_factor": 0.9544,
    "woba_minus_xwoba": 0.016,
    "regression_flag": "neutral",
    "espn_rank": {
      "available": true,
      "player_id": "702056",
      "espn_id": 4949041,
      "player_name": "Trey Yesavage",
      "team": "TOR",
      "role": "pitcher",
      "espn_rank": 65,
      "espn_total_ranked": 701,
      "metrics": {
        "espn_rank": 65,
        "gp_value": 9.0,
        "gp_rank": 403,
        "gs_value": 9.0,
        "gs_rank": 124,
        "qs_value": 2.0,
        "qs_rank": 109,
        "era_value": 3.7762,
        "era_rank": null,
        "w_value": 3.0,
        "w_rank": 107,
        "l_value": 3.0,
        "l_rank": 110,
        "sv_value": 0.0,
        "sv_rank": 172,
        "hld_value": 0.0,
        "hld_rank": 256,
        "ip_value": 47.2,
        "ip_rank": 139,
        "h_value": 35.0,
        "h_rank": 173,
        "er_value": 20.0,
        "er_rank": 150,
        "hr_value": 3.0,
        "hr_rank": 258,
        "bb_value": 25.0,
        "bb_rank": 54,
        "k_value": 47.0,
        "k_rank": 127,
        "k_per_9_value": 8.874126,
        "k_per_9_rank": 24,
        "whip_value": 1.2587,
        "whip_rank": null,
        "war_value": 1.29,
        "war_rank": null
      },
      "source": "espn_statistics_byathlete"
    }
  },
  "run_factors": {
    "away_runs_vs_home_pitcher": 1.0042,
    "home_runs_vs_away_pitcher": 0.9934,
    "home_pitcher_quality_edge": -0.2433
  },
  "score_before": {
    "away_runs": 2.0,
    "home_runs": 1.0
  },
  "score_after": {
    "away_runs": 2.0085,
    "home_runs": 0.9934,
    "home_win_probability": 0.4093
  },
  "reason": "Baseball Savant xwOBA, barrel, hard-hit, sweet-spot, whiff, K%, and BB% adjusted starter run prevention"
}

Team Form Snapshot

TeamLast-10 W-LWin %R/GRA/GRun DiffStreakOffenseDefense
Away TOR14-510.21513.20-140coldstrong
Home BOS12-450.21113.50-141coldaverage

Season Run Differential

TeamRecordWin %Run DiffRD/GameAvailable
Away TOR36-380.486-14-0.189True
Home BOS29-420.408-12-0.169True
Signal--0.020-0.097applied=False

Recent Head-to-Head

DateMatchupScoreWinnerMarginType
------

Player/Game Reconciliation

LayerABHRHRRBIBBSO
Game target TOR--2----
Game target BOS--1----
Player finalized TOR31920318
Player finalized BOS31910307
Player model fractional TOR31.637.753.671.074.022.576.67
Player model fractional BOS31.656.993.591.013.452.497.54
Simulation box TOR314212210
Simulation box BOS33611128

If player finalized rows and game target disagree, the report now exposes that gap instead of hiding it. Fractional model rows show the unrounded prop layer before box-score realization.

Pitching Snapshot

TeamRolePitcherPre IPPre ERPre SOPre HPre BBWeighted ERAWeighted WHIPBox Sync
Away TORStarterTrey Yesavage5.2006404.681.28True
Away TORMiddle RelieverJeff Hoffman110123.711.16True
Away TORMiddle RelieverLouis Varland1.1002003.761.10True
Away TORMiddle RelieverTyler Rogers100102.101.10True
Home BOSStarterSonny Gray5.20110123.341.27True
Home BOSMiddle RelieverAroldis Chapman1.1000002.521.16True
Home BOSMiddle RelieverGarrett Whitlock100103.581.14True
Home BOSMiddle RelieverJustin Slaten110206.431.55True
Market-line comparison is not rendered because no local odds or sportsbook line CSV was found in data/. Add a real odds source before using market deltas as a model feature.

Player Boost/Deboost Impact Summary

SideTeamRolePosPlayerDominantChangedBoostedDeboostedBetterWorseLargest MetricLargest DeltaDirectionEffect
awayTORbatter2BErnie Clementworse102819predicted_SO1.5620boostworse
awayTORbatter1BVladimir Guerrero Jr.worse92718predicted_SO1.5510boostworse
homeBOSbatterSSIsiah Kiner-Falefaworse113829predicted_SO1.5500boostworse
awayTORbatter3BKazuma Okamotoworse81726predicted_SO-1.3520deboostbetter
awayTORbatterDHGeorge Springerworse102837predicted_AB-1.3300deboostworse
awayTORbatterRFJesús Sánchezworse114738predicted_SO1.3280boostworse
homeBOSbatterLFJarren Duranworse112938predicted_SO-1.2880deboostbetter
homeBOSbatter2BAndruw Monasterioworse102819predicted_SO1.2160boostworse
homeBOSbatter1BWillson Contrerasbetter95463predicted_SO-1.1190deboostbetter
homeBOSbatterCConnor Wongworse103728predicted_AB1.0770boostbetter
homeBOSbatterCFCeddanne Rafaelaworse91809predicted_H-1.0100deboostworse
awayTORbatterCFNathan Lukesworse103728predicted_H-0.8800deboostworse
awayTORbatterCBrandon Valenzuelaworse95445predicted_HR0.8600boostbetter
homeBOSbatterRFWilyer Abreuworse90918predicted_SO-0.8570deboostbetter
homeBOSbatterDHMickey Gasperworse114738predicted_2B0.8570boostbetter
awayTORbatterLFYohendrick Pinangoboosted106455predicted_BB0.8210boostbetter
awayTORbatterSSAndrés Giménezworse91809predicted_H-0.7800deboostworse
homeBOSbatter3BCaleb Durbinworse103728predicted_AB0.6940boostbetter
awayTORpitcherStarterTrey Yesavageworse10101predicted_IP-0.4667deboostworse
homeBOSpitcherStarterSonny Grayworse10101predicted_IP-0.4667deboostworse
awayTORpitcherMiddle RelieverLouis Varlandbetter11010predicted_IP0.1000boostbetter
homeBOSpitcherMiddle RelieverAroldis Chapmanbetter11010predicted_IP0.1000boostbetter

This table ranks players whose JSON evolution changed materially. Boost/deboost is numeric movement; better/worse is role-aware.

Away Team: TOR

Away Pitcher Deep Analysis

FieldValue
PitcherTrey Yesavage
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score0.1731
ESPN Rank65
Movement AvailableTrue
Primary Pitch-
Movement Score-0.0481
Avg Velo88.8693
Avg Spin1987.1022
HB Inches0
IVB Inches0
Release Extension0
Pre IP5.2000
Pre ER0
Pre H4
Pre BB0
Pre SO6
Season ERA3.7762
Season WHIP1.2587
Role Avg IP5.2960
Recent Avg IP5.6670
Last Start IP5
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "TOR",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 334.0,
    "runs_allowed": 329.0,
    "run_differential": 5.0,
    "run_differential_per_game": 0.0625,
    "avg_runs_scored": 4.175,
    "avg_runs_allowed": 4.1125,
    "offense_index": 0.9258,
    "defense_index": 1.0965,
    "current_streak": "W2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 3.9,
      "run_differential": 3.0
    },
    "available": true,
    "quality_score": 0.032
  },
  "opponent": {
    "team": "BOS",
    "games": 80,
    "wins": 31,
    "losses": 49,
    "win_pct": 0.3875,
    "runs_scored": 302.0,
    "runs_allowed": 329.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3375,
    "avg_runs_scored": 3.775,
    "avg_runs_allowed": 4.1125,
    "offense_index": 0.8371,
    "defense_index": 1.0965,
    "current_streak": "L3",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 3.1,
      "avg_runs_allowed": 3.9,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.2418
  },
  "edges": {
    "quality_edge": 0.2738,
    "offense_edge": -0.0742,
    "opponent_offense_edge": -0.1629,
    "defense_strength": 0.0965,
    "opponent_defense_weakness": -0.0965,
    "recent_win_pct_edge": 0.4
  },
  "player_factors": {
    "ip": 1.0204,
    "run_prevention": 0.9506,
    "strikeout": 1.0212
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "702056",
    "profile": {
      "available": true,
      "pitcher_id": "702056",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 108.0,
        "k_percent": 23.7,
        "bb_percent": 12.6,
        "woba": 0.296,
        "xwoba": 0.28,
        "sweet_spot_percent": 36.8,
        "barrel_batted_rate": 4.8,
        "hard_hit_percent": 33.6,
        "avg_best_speed": 78.5791,
        "avg_hyper_speed": 93.4687,
        "whiff_percent": 29.1,
        "swing_percent": 48.5
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.5763,
        "command_and_miss": 0.0771,
        "regression_edge": 0.4571,
        "xwoba_edge": 1.0,
        "barrel_edge": 0.5556,
        "hard_hit_edge": 0.6714,
        "whiff_edge": 0.4857,
        "bb_edge": -0.85,
        "pitch_design_score": -0.0481
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "702056",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 93,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 93,
          "pitch_usage": 0.0,
          "release_speed": 88.86933129477885,
          "release_spin_rate": 1987.1021688051485,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 93,
            "pitch_usage": 0.0,
            "release_speed": 88.86933129477885,
            "release_spin_rate": 1987.1021688051485,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 88.8693,
          "release_spin_rate": 1987.1022,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.0481,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -0.3438,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.1731,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9853,
      "strikeout_factor": 1.0118,
      "walk_factor": 1.0306,
      "homer_factor": 0.9544,
      "woba_minus_xwoba": 0.016,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "702056",
        "espn_id": 4949041,
        "player_name": "Trey Yesavage",
        "team": "TOR",
        "role": "pitcher",
        "espn_rank": 65,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 65,
          "gp_value": 9.0,
          "gp_rank": 403,
          "gs_value": 9.0,
          "gs_rank": 124,
          "qs_value": 2.0,
          "qs_rank": 109,
          "era_value": 3.7762,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 3.0,
          "l_rank": 110,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 47.2,
          "ip_rank": 139,
          "h_value": 35.0,
          "h_rank": 173,
          "er_value": 20.0,
          "er_rank": 150,
          "hr_value": 3.0,
          "hr_rank": 258,
          "bb_value": 25.0,
          "bb_rank": 54,
          "k_value": 47.0,
          "k_rank": 127,
          "k_per_9_value": 8.874126,
          "k_per_9_rank": 24,
          "whip_value": 1.2587,
          "whip_rank": null,
          "war_value": 1.29,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 3.0,
        "factor": 0.9934,
        "adjusted": 3
      },
      "predicted_H": {
        "original": 4.0,
        "factor": 0.9934,
        "adjusted": 4
      },
      "predicted_BB": {
        "original": 3.0,
        "factor": 1.0138,
        "adjusted": 3
      },
      "predicted_HR": {
        "original": 1.0,
        "factor": 0.9795,
        "adjusted": 1
      },
      "predicted_SO": {
        "original": 5.0,
        "factor": 1.0053,
        "adjusted": 5
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 47.2,
    "ER": 20,
    "H": 35,
    "BB": 25,
    "SO": 47,
    "HR": 3,
    "ERA": 3.776223776223776,
    "WHIP": 1.2587412587412585,
    "K9": 8.874125874125873,
    "HR9": 0.5664335664335663,
    "games_pitched": 9,
    "quality_starts": 2,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 9,
    "error_prone": false
  },
  "games_count": 9,
  "latest_game_date": "2026-06-12T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "702056",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 93,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 93,
    "pitch_usage": 0.0,
    "release_speed": 88.86933129477885,
    "release_spin_rate": 1987.1021688051485,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 93,
      "pitch_usage": 0.0,
      "release_speed": 88.86933129477885,
      "release_spin_rate": 1987.1021688051485,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 88.8693,
    "release_spin_rate": 1987.1022,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.0481,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -0.3438,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.6164383561643836,
    "last_10": 0.3835616438356164
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 9.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.6429,
    "prior_weight": 0.3571
  },
  "role": "pitcher",
  "player_id": "702056",
  "report_date": "20260618_T",
  "season_year": 2026,
  "rows_used": 9,
  "reference_playing_time": 5.667,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 28.1,
        "ER": 17.0,
        "R": 17.0,
        "H": 18.0,
        "BB": 17.0,
        "SO": 26.0,
        "HR": 3.0,
        "BF": 117.0,
        "Pitches": 457.0
      },
      "per_game": {
        "IP": 5.2,
        "ER": 3.4,
        "R": 3.4,
        "H": 3.6,
        "BB": 3.4,
        "SO": 5.2,
        "HR": 0.6,
        "BF": 23.4,
        "Pitches": 91.4
      },
      "rates": {
        "ERA": 5.4,
        "WHIP": 1.2353,
        "ER_per_IP": 0.6,
        "H_per_IP": 0.63529,
        "BB_per_IP": 0.6,
        "SO_per_IP": 0.91765,
        "HR_per_IP": 0.10588
      }
    },
    "last_10": {
      "games": 9,
      "totals": {
        "IP": 47.2,
        "ER": 20.0,
        "R": 20.0,
        "H": 35.0,
        "BB": 25.0,
        "SO": 47.0,
        "HR": 3.0,
        "BF": 198.0,
        "Pitches": 788.0
      },
      "per_game": {
        "IP": 5.1,
        "ER": 2.2222,
        "R": 2.2222,
        "H": 3.8889,
        "BB": 2.7778,
        "SO": 5.2222,
        "HR": 0.3333,
        "BF": 22.0,
        "Pitches": 87.5556
      },
      "rates": {
        "ERA": 3.7762,
        "WHIP": 1.2587,
        "ER_per_IP": 0.41958,
        "H_per_IP": 0.73427,
        "BB_per_IP": 0.52448,
        "SO_per_IP": 0.98601,
        "HR_per_IP": 0.06294
      }
    },
    "season": {
      "games": 9,
      "totals": {
        "IP": 47.2,
        "ER": 20.0,
        "R": 20.0,
        "H": 35.0,
        "BB": 25.0,
        "SO": 47.0,
        "HR": 3.0,
        "BF": 198.0,
        "Pitches": 788.0
      },
      "per_game": {
        "IP": 5.1,
        "ER": 2.2222,
        "R": 2.2222,
        "H": 3.8889,
        "BB": 2.7778,
        "SO": 5.2222,
        "HR": 0.3333,
        "BF": 22.0,
        "Pitches": 87.5556
      },
      "rates": {
        "ERA": 3.7762,
        "WHIP": 1.2587,
        "ER_per_IP": 0.41958,
        "H_per_IP": 0.73427,
        "BB_per_IP": 0.52448,
        "SO_per_IP": 0.98601,
        "HR_per_IP": 0.06294
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 5.2,
    "predicted_ER": 2.905,
    "predicted_H": 4.36,
    "predicted_BB": 2.774,
    "predicted_SO": 5.259,
    "predicted_HR": 0.612,
    "predicted_ERA": 4.6811,
    "predicted_WHIP": 1.2775
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5009,
  "form_weight": 0.4991,
  "form_reliability": 0.6429,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 9.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.6429,
    "prior_weight": 0.3571
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 5.2,
      "form": 5.2,
      "final": 5.2,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 2.905,
      "final": 1.45,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 4.0,
      "form": 4.36,
      "final": 4.1797,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 2.774,
      "final": 1.3846,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 6.0,
      "form": 5.259,
      "final": 5.6301,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.612,
      "final": 0.3055,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 4.6811,
      "final": 4.6811,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2775,
      "final": 1.2775,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherJeff Hoffman
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.4584
ESPN Rank612
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER1
Pre H1
Pre BB2
Pre SO0
Season ERA5.2887
Season WHIP1.5155
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "TOR",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 334.0,
    "runs_allowed": 329.0,
    "run_differential": 5.0,
    "run_differential_per_game": 0.0625,
    "avg_runs_scored": 4.175,
    "avg_runs_allowed": 4.1125,
    "offense_index": 0.9258,
    "defense_index": 1.0965,
    "current_streak": "W2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 3.9,
      "run_differential": 3.0
    },
    "available": true,
    "quality_score": 0.032
  },
  "opponent": {
    "team": "BOS",
    "games": 80,
    "wins": 31,
    "losses": 49,
    "win_pct": 0.3875,
    "runs_scored": 302.0,
    "runs_allowed": 329.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3375,
    "avg_runs_scored": 3.775,
    "avg_runs_allowed": 4.1125,
    "offense_index": 0.8371,
    "defense_index": 1.0965,
    "current_streak": "L3",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 3.1,
      "avg_runs_allowed": 3.9,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.2418
  },
  "edges": {
    "quality_edge": 0.2738,
    "offense_edge": -0.0742,
    "opponent_offense_edge": -0.1629,
    "defense_strength": 0.0965,
    "opponent_defense_weakness": -0.0965,
    "recent_win_pct_edge": 0.4
  },
  "player_factors": {
    "ip": 1.0204,
    "run_prevention": 0.9506,
    "strikeout": 1.0212
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "656546",
    "profile": {
      "available": true,
      "pitcher_id": "656546",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 110.0,
        "k_percent": 36.1,
        "bb_percent": 7.5,
        "woba": 0.34,
        "xwoba": 0.269,
        "sweet_spot_percent": 30.0,
        "barrel_batted_rate": 6.3,
        "hard_hit_percent": 27.5,
        "avg_best_speed": 76.3485,
        "avg_hyper_speed": 92.4322,
        "whiff_percent": 39.6,
        "swing_percent": 50.6
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.6937,
        "command_and_miss": 1.6543,
        "regression_edge": 2.0,
        "xwoba_edge": 1.3143,
        "barrel_edge": 0.2222,
        "hard_hit_edge": 1.5429,
        "whiff_edge": 1.9857,
        "bb_edge": 0.425,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "656546",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.4584,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.961,
      "strikeout_factor": 1.0707,
      "walk_factor": 0.9847,
      "homer_factor": 0.9465,
      "woba_minus_xwoba": 0.071,
      "regression_flag": "positive_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "656546",
        "espn_id": 33841,
        "player_name": "Jeff Hoffman",
        "team": "TOR",
        "role": "pitcher",
        "espn_rank": 612,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 612,
          "gp_value": 35.0,
          "gp_rank": 9,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 5.2886,
          "era_rank": null,
          "w_value": 4.0,
          "w_rank": 65,
          "l_value": 4.0,
          "l_rank": 62,
          "sv_value": 5.0,
          "sv_rank": 27,
          "hld_value": 8.0,
          "hld_rank": 41,
          "ip_value": 32.1,
          "ip_rank": 217,
          "h_value": 38.0,
          "h_rank": 156,
          "er_value": 19.0,
          "er_rank": 159,
          "hr_value": 4.0,
          "hr_rank": 199,
          "bb_value": 11.0,
          "bb_rank": 272,
          "k_value": 53.0,
          "k_rank": 103,
          "k_per_9_value": 14.752578,
          "k_per_9_rank": 12,
          "whip_value": 1.5154,
          "whip_rank": null,
          "war_value": -0.36,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9824,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9824,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9931,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9759,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 3.0,
        "factor": 1.0318,
        "adjusted": 3
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.1,
    "ER": 6,
    "H": 9,
    "BB": 3,
    "SO": 13,
    "HR": 1,
    "ERA": 5.785714285714286,
    "WHIP": 1.2857142857142856,
    "K9": 12.535714285714285,
    "HR9": 0.9642857142857142,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-17T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "656546",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.421,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5622,
    "prior_weight": 0.4378
  },
  "role": "pitcher",
  "player_id": "656546",
  "report_date": "20260618_T",
  "season_year": 2026,
  "rows_used": 35,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 2.0,
        "BB": 1.0,
        "SO": 6.0,
        "HR": 0.0,
        "BF": 18.0,
        "Pitches": 82.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.4,
        "BB": 0.2,
        "SO": 1.2,
        "HR": 0.0,
        "BF": 3.6,
        "Pitches": 16.4
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 0.6,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.4,
        "BB_per_IP": 0.2,
        "SO_per_IP": 1.2,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.1,
        "ER": 6.0,
        "R": 6.0,
        "H": 9.0,
        "BB": 3.0,
        "SO": 13.0,
        "HR": 1.0,
        "BF": 39.0,
        "Pitches": 172.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.6,
        "R": 0.6,
        "H": 0.9,
        "BB": 0.3,
        "SO": 1.3,
        "HR": 0.1,
        "BF": 3.9,
        "Pitches": 17.2
      },
      "rates": {
        "ERA": 5.7857,
        "WHIP": 1.2857,
        "ER_per_IP": 0.64286,
        "H_per_IP": 0.96429,
        "BB_per_IP": 0.32143,
        "SO_per_IP": 1.39286,
        "HR_per_IP": 0.10714
      }
    },
    "season": {
      "games": 35,
      "totals": {
        "IP": 32.1,
        "ER": 19.0,
        "R": 22.0,
        "H": 38.0,
        "BB": 11.0,
        "SO": 53.0,
        "HR": 4.0,
        "BF": 147.0,
        "Pitches": 599.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.5429,
        "R": 0.6286,
        "H": 1.0857,
        "BB": 0.3143,
        "SO": 1.5143,
        "HR": 0.1143,
        "BF": 4.2,
        "Pitches": 17.1143
      },
      "rates": {
        "ERA": 5.2887,
        "WHIP": 1.5155,
        "ER_per_IP": 0.58763,
        "H_per_IP": 1.17526,
        "BB_per_IP": 0.34021,
        "SO_per_IP": 1.63918,
        "HR_per_IP": 0.12371
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.412,
    "predicted_H": 0.85,
    "predicted_BB": 0.311,
    "predicted_SO": 1.172,
    "predicted_HR": 0.099,
    "predicted_ERA": 3.7068,
    "predicted_WHIP": 1.1606
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.535,
  "form_weight": 0.465,
  "form_reliability": 0.5622,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.421,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5622,
    "prior_weight": 0.4378
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 1.0,
      "form": 0.412,
      "final": 0.7266,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.85,
      "final": 0.9302,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 2.0,
      "form": 0.311,
      "final": 1.2146,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 1.172,
      "final": 0.545,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 1.0,
      "form": 0.099,
      "final": 0.581,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.7068,
      "final": 3.7068,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1606,
      "final": 1.1606,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherLouis Varland
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.5704
ESPN Rank18
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1.1000
Pre ER0
Pre H0
Pre BB0
Pre SO2
Season ERA0.9000
Season WHIP0.9750
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "TOR",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 334.0,
    "runs_allowed": 329.0,
    "run_differential": 5.0,
    "run_differential_per_game": 0.0625,
    "avg_runs_scored": 4.175,
    "avg_runs_allowed": 4.1125,
    "offense_index": 0.9258,
    "defense_index": 1.0965,
    "current_streak": "W2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 3.9,
      "run_differential": 3.0
    },
    "available": true,
    "quality_score": 0.032
  },
  "opponent": {
    "team": "BOS",
    "games": 80,
    "wins": 31,
    "losses": 49,
    "win_pct": 0.3875,
    "runs_scored": 302.0,
    "runs_allowed": 329.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3375,
    "avg_runs_scored": 3.775,
    "avg_runs_allowed": 4.1125,
    "offense_index": 0.8371,
    "defense_index": 1.0965,
    "current_streak": "L3",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 3.1,
      "avg_runs_allowed": 3.9,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.2418
  },
  "edges": {
    "quality_edge": 0.2738,
    "offense_edge": -0.0742,
    "opponent_offense_edge": -0.1629,
    "defense_strength": 0.0965,
    "opponent_defense_weakness": -0.0965,
    "recent_win_pct_edge": 0.4
  },
  "player_factors": {
    "ip": 1.0204,
    "run_prevention": 0.9506,
    "strikeout": 1.0212
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "686973",
    "profile": {
      "available": true,
      "pitcher_id": "686973",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 111.0,
        "k_percent": 35.7,
        "bb_percent": 7.1,
        "woba": 0.227,
        "xwoba": 0.226,
        "sweet_spot_percent": 23.9,
        "barrel_batted_rate": 3.4,
        "hard_hit_percent": 36.4,
        "avg_best_speed": 75.0307,
        "avg_hyper_speed": 93.4231,
        "whiff_percent": 29.1,
        "swing_percent": 52.5
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 1.7367,
        "command_and_miss": 1.1236,
        "regression_edge": 0.0286,
        "xwoba_edge": 2.5,
        "barrel_edge": 0.8667,
        "hard_hit_edge": 0.2714,
        "whiff_edge": 0.4857,
        "bb_edge": 0.525,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "686973",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.5704,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9515,
      "strikeout_factor": 1.0427,
      "walk_factor": 0.9811,
      "homer_factor": 0.9302,
      "woba_minus_xwoba": 0.001,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "686973",
        "espn_id": 4917888,
        "player_name": "Louis Varland",
        "team": "TOR",
        "role": "pitcher",
        "espn_rank": 18,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 18,
          "gp_value": 36.0,
          "gp_rank": 5,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 0.9,
          "era_rank": null,
          "w_value": 3.0,
          "w_rank": 107,
          "l_value": 2.0,
          "l_rank": 185,
          "sv_value": 14.0,
          "sv_rank": 7,
          "hld_value": 5.0,
          "hld_rank": 87,
          "ip_value": 40.0,
          "ip_rank": 164,
          "h_value": 28.0,
          "h_rank": 233,
          "er_value": 4.0,
          "er_rank": 528,
          "hr_value": 1.0,
          "hr_rank": 453,
          "bb_value": 11.0,
          "bb_rank": 272,
          "k_value": 55.0,
          "k_rank": 100,
          "k_per_9_value": 12.374999,
          "k_per_9_rank": 16,
          "whip_value": 0.975,
          "whip_rank": null,
          "war_value": 2.3,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9782,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9782,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9915,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9686,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0192,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 11.1,
    "ER": 3,
    "H": 6,
    "BB": 2,
    "SO": 14,
    "HR": 1,
    "ERA": 2.3823529411764706,
    "WHIP": 0.7058823529411764,
    "K9": 11.117647058823529,
    "HR9": 0.7941176470588235,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-17T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "686973",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 7.943,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.6137,
    "prior_weight": 0.3863
  },
  "role": "pitcher",
  "player_id": "686973",
  "report_date": "20260618_T",
  "season_year": 2026,
  "rows_used": 36,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.1,
        "ER": 3.0,
        "R": 3.0,
        "H": 4.0,
        "BB": 2.0,
        "SO": 10.0,
        "HR": 1.0,
        "BF": 22.0,
        "Pitches": 74.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.6,
        "R": 0.6,
        "H": 0.8,
        "BB": 0.4,
        "SO": 2.0,
        "HR": 0.2,
        "BF": 4.4,
        "Pitches": 14.8
      },
      "rates": {
        "ERA": 5.0625,
        "WHIP": 1.125,
        "ER_per_IP": 0.5625,
        "H_per_IP": 0.75,
        "BB_per_IP": 0.375,
        "SO_per_IP": 1.875,
        "HR_per_IP": 0.1875
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 11.1,
        "ER": 3.0,
        "R": 3.0,
        "H": 6.0,
        "BB": 2.0,
        "SO": 14.0,
        "HR": 1.0,
        "BF": 41.0,
        "Pitches": 141.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3,
        "R": 0.3,
        "H": 0.6,
        "BB": 0.2,
        "SO": 1.4,
        "HR": 0.1,
        "BF": 4.1,
        "Pitches": 14.1
      },
      "rates": {
        "ERA": 2.3824,
        "WHIP": 0.7059,
        "ER_per_IP": 0.26471,
        "H_per_IP": 0.52941,
        "BB_per_IP": 0.17647,
        "SO_per_IP": 1.23529,
        "HR_per_IP": 0.08824
      }
    },
    "season": {
      "games": 36,
      "totals": {
        "IP": 40.0,
        "ER": 4.0,
        "R": 9.0,
        "H": 28.0,
        "BB": 11.0,
        "SO": 55.0,
        "HR": 1.0,
        "BF": 154.0,
        "Pitches": 629.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.1111,
        "R": 0.25,
        "H": 0.7778,
        "BB": 0.3056,
        "SO": 1.5278,
        "HR": 0.0278,
        "BF": 4.2778,
        "Pitches": 17.4722
      },
      "rates": {
        "ERA": 0.9,
        "WHIP": 0.975,
        "ER_per_IP": 0.1,
        "H_per_IP": 0.7,
        "BB_per_IP": 0.275,
        "SO_per_IP": 1.375,
        "HR_per_IP": 0.025
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.418,
    "predicted_H": 0.783,
    "predicted_BB": 0.316,
    "predicted_SO": 1.314,
    "predicted_HR": 0.13,
    "predicted_ERA": 3.7618,
    "predicted_WHIP": 1.0985
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5132,
  "form_weight": 0.4868,
  "form_reliability": 0.6137,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 7.943,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.6137,
    "prior_weight": 0.3863
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.418,
      "final": 0.2035,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.783,
      "final": 0.3812,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.316,
      "final": 0.1538,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 2.0,
      "form": 1.314,
      "final": 1.6661,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.13,
      "final": 0.0633,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.7618,
      "final": 3.7618,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.0985,
      "final": 1.0985,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherTyler Rogers
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.3784
ESPN Rank51
Movement AvailableFalse
Primary Pitch-
Movement Score-
Avg Velo-
Avg Spin-
HB Inches-
IVB Inches-
Release Extension-
Pre IP1
Pre ER0
Pre H1
Pre BB0
Pre SO0
Season ERA1.8000
Season WHIP1.0286
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "TOR",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 334.0,
    "runs_allowed": 329.0,
    "run_differential": 5.0,
    "run_differential_per_game": 0.0625,
    "avg_runs_scored": 4.175,
    "avg_runs_allowed": 4.1125,
    "offense_index": 0.9258,
    "defense_index": 1.0965,
    "current_streak": "W2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 3.9,
      "run_differential": 3.0
    },
    "available": true,
    "quality_score": 0.032
  },
  "opponent": {
    "team": "BOS",
    "games": 80,
    "wins": 31,
    "losses": 49,
    "win_pct": 0.3875,
    "runs_scored": 302.0,
    "runs_allowed": 329.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3375,
    "avg_runs_scored": 3.775,
    "avg_runs_allowed": 4.1125,
    "offense_index": 0.8371,
    "defense_index": 1.0965,
    "current_streak": "L3",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 3.1,
      "avg_runs_allowed": 3.9,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.2418
  },
  "edges": {
    "quality_edge": 0.2738,
    "offense_edge": -0.0742,
    "opponent_offense_edge": -0.1629,
    "defense_strength": 0.0965,
    "opponent_defense_weakness": -0.0965,
    "recent_win_pct_edge": 0.4
  },
  "player_factors": {
    "ip": 1.0204,
    "run_prevention": 0.9506,
    "strikeout": 1.0212
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "643511",
    "profile": {
      "available": true,
      "pitcher_id": "643511",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 98.0,
        "k_percent": 14.4,
        "bb_percent": 7.2,
        "woba": 0.219,
        "xwoba": 0.24,
        "sweet_spot_percent": 21.1,
        "barrel_batted_rate": 0.0,
        "hard_hit_percent": 22.9,
        "avg_best_speed": 71.756,
        "avg_hyper_speed": 91.8923,
        "whiff_percent": 14.6,
        "swing_percent": 49.1
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 2.0616,
        "command_and_miss": -0.9757,
        "regression_edge": -0.6,
        "xwoba_edge": 2.1429,
        "barrel_edge": 1.6222,
        "hard_hit_edge": 2.2,
        "whiff_edge": -1.5857,
        "bb_edge": 0.5,
        "pitch_design_score": 0.0
      },
      "pitch_movement_profile": {
        "available": false,
        "pitcher_id": "643511",
        "reason": "pitcher_movement_profile_has_no_pitches"
      },
      "quality_score": 0.3784,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9678,
      "strikeout_factor": 0.9506,
      "walk_factor": 0.982,
      "homer_factor": 0.8731,
      "woba_minus_xwoba": -0.021,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "643511",
        "espn_id": 34026,
        "player_name": "Tyler Rogers",
        "team": "TOR",
        "role": "pitcher",
        "espn_rank": 51,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 51,
          "gp_value": 36.0,
          "gp_rank": 5,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 1.8,
          "era_rank": null,
          "w_value": 1.0,
          "w_rank": 287,
          "l_value": 2.0,
          "l_rank": 185,
          "sv_value": 2.0,
          "sv_rank": 56,
          "hld_value": 16.0,
          "hld_rank": 3,
          "ip_value": 35.0,
          "ip_rank": 186,
          "h_value": 26.0,
          "h_rank": 257,
          "er_value": 7.0,
          "er_rank": 431,
          "hr_value": 0.0,
          "hr_rank": 578,
          "bb_value": 10.0,
          "bb_rank": 303,
          "k_value": 20.0,
          "k_rank": 352,
          "k_per_9_value": 5.142857,
          "k_per_9_rank": 51,
          "whip_value": 1.0285,
          "whip_rank": null,
          "war_value": 1.47,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9855,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9855,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9919,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9429,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 0.9778,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.0,
    "ER": 0,
    "H": 7,
    "BB": 1,
    "SO": 5,
    "HR": 0,
    "ERA": 0.0,
    "WHIP": 0.8000000000000002,
    "K9": 4.500000000000001,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-17T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": false,
  "pitcher_id": "643511",
  "reason": "pitcher_movement_profile_has_no_pitches"
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.95,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5816,
    "prior_weight": 0.4184
  },
  "role": "pitcher",
  "player_id": "643511",
  "report_date": "20260618_T",
  "season_year": 2026,
  "rows_used": 36,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 5.0,
        "BB": 0.0,
        "SO": 2.0,
        "HR": 0.0,
        "BF": 20.0,
        "Pitches": 71.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 1.0,
        "BB": 0.0,
        "SO": 0.4,
        "HR": 0.0,
        "BF": 4.0,
        "Pitches": 14.2
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 1.0,
        "ER_per_IP": 0.0,
        "H_per_IP": 1.0,
        "BB_per_IP": 0.0,
        "SO_per_IP": 0.4,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 7.0,
        "BB": 1.0,
        "SO": 5.0,
        "HR": 0.0,
        "BF": 37.0,
        "Pitches": 139.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.7,
        "BB": 0.1,
        "SO": 0.5,
        "HR": 0.0,
        "BF": 3.7,
        "Pitches": 13.9
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 0.8,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.7,
        "BB_per_IP": 0.1,
        "SO_per_IP": 0.5,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 36,
      "totals": {
        "IP": 35.0,
        "ER": 7.0,
        "R": 8.0,
        "H": 26.0,
        "BB": 10.0,
        "SO": 20.0,
        "HR": 0.0,
        "BF": 139.0,
        "Pitches": 487.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.1944,
        "R": 0.2222,
        "H": 0.7222,
        "BB": 0.2778,
        "SO": 0.5556,
        "HR": 0.0,
        "BF": 3.8611,
        "Pitches": 13.5278
      },
      "rates": {
        "ERA": 1.8,
        "WHIP": 1.0286,
        "ER_per_IP": 0.2,
        "H_per_IP": 0.74286,
        "BB_per_IP": 0.28571,
        "SO_per_IP": 0.57143,
        "HR_per_IP": 0.0
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.233,
    "predicted_H": 0.898,
    "predicted_BB": 0.206,
    "predicted_SO": 0.665,
    "predicted_HR": 0.061,
    "predicted_ERA": 2.0956,
    "predicted_WHIP": 1.1037
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5268,
  "form_weight": 0.4732,
  "form_reliability": 0.5816,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 6.95,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.5816,
    "prior_weight": 0.4184
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.233,
      "final": 0.1103,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.898,
      "final": 0.9517,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.206,
      "final": 0.0975,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 0.665,
      "final": 0.3147,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.061,
      "final": 0.0289,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 2.0956,
      "final": 2.0956,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1037,
      "final": 1.1037,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Vladimir Guerrero Jr. (665489) · BATTER · 1B · Team TOR
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 243
All-history rows before 20260618: 243
System season_avg: 0.2800
Data season_avg (2026 season-to-date): 0.2896
Diff (system - data): -0.0096
System opponent_avg: 0.0840

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1740.0000.000Hitting_2B0.1520.000-0.1520.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.0204.0004.000Hitting_AB3.6384.0000.3620.000
predicted_AVG0.2450.0000.250Hitting_AVG0.2900.500-0.290-0.500
predicted_BB0.4640.0000.000Hitting_BB0.5720.000-0.5720.000
predicted_CS-0.0000.000BaseRunning_CS0.0160.000-0.0160.000
predicted_H0.9900.0001.000Hitting_H1.0532.000-1.053-2.000
predicted_HR0.0800.0000.000Hitting_HR0.0490.000-0.0490.000
predicted_OBP0.3250.0000.250Hitting_OBP0.3920.500-0.392-0.500
predicted_R0.5510.0001.000Hitting_R0.6130.000-0.6130.000
predicted_RBI0.5200.0001.000Hitting_RBI0.4282.000-0.428-2.000
predicted_SLG0.3640.0000.250Hitting_SLG0.3720.500-0.372-0.500
predicted_SO0.4492.0001.000Hitting_SO0.4320.0001.5682.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics2
Deboosted Metrics7
Better Metrics1
Worse Metrics8
Biggest Boostpredicted_SO: 0.4490 -> 2.0000 (boost 1.5510, worse)
Biggest Deboostpredicted_H: 0.9900 -> 0.0000 (deboost -0.9900, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend31212predicted_AVG: 0.2450 -> 0.2505 (boost 0.0055, better)predicted_AB: 4.0200 -> 3.9253 (deboost -0.0947, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_SLG: 0.3522 -> 0.3454 (deboost -0.0068, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62433predicted_RBI: 0.5244 -> 1.0000 (boost 0.4756, better)predicted_SO: 0.4702 -> 0.0000 (deboost -0.4702, better)AB rounded to 4 (raw=4.02), rates preserved: AVG=0.247 HR/AB=0.015
5bvp_blend11001predicted_SO: 0.0000 -> 1.0000 (boost 1.0000, worse)-Sample-size BvP blend (BvP AB=7.0, weight=0.076, BvP AVG=0.000)
6consistency_constraints11010predicted_R: 0.5220 -> 1.0000 (boost 0.4780, better)-Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context20202-predicted_SLG: 0.3454 -> 0.2500 (deboost -0.0954, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference41304predicted_SO: 1.0000 -> 2.0000 (boost 1.0000, worse)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final22020predicted_SLG: 0.2500 -> 0.3454 (boost 0.0954, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "665489",
  "player_name": "Vladimir Guerrero Jr.",
  "position": "1B",
  "team": "TOR",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.174,
        "predicted_3B": 0.0,
        "predicted_AB": 4.02,
        "predicted_AVG": 0.245,
        "predicted_BB": 0.464,
        "predicted_H": 0.99,
        "predicted_HR": 0.08,
        "predicted_OBP": 0.325,
        "predicted_R": 0.551,
        "predicted_RBI": 0.52,
        "predicted_SLG": 0.364,
        "predicted_SO": 0.449
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1787,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.9253,
        "predicted_AVG": 0.2505,
        "predicted_BB": 0.4407,
        "predicted_H": 0.9853,
        "predicted_HBP": 0.028,
        "predicted_HR": 0.0614,
        "predicted_OBP": 0.3272,
        "predicted_R": 0.5125,
        "predicted_RBI": 0.5149,
        "predicted_SLG": 0.3522,
        "predicted_SO": 0.4727
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.174,
          "after": 0.1787,
          "delta": 0.0047,
          "percent_delta": 0.027,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.02,
          "after": 3.9253,
          "delta": -0.0947,
          "percent_delta": -0.0236,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.245,
          "after": 0.2505,
          "delta": 0.0055,
          "percent_delta": 0.0224,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.464,
          "after": 0.4407,
          "delta": -0.0233,
          "percent_delta": -0.0502,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.99,
          "after": 0.9853,
          "delta": -0.0047,
          "percent_delta": -0.0047,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.08,
          "after": 0.0614,
          "delta": -0.0186,
          "percent_delta": -0.2325,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.325,
          "after": 0.3272,
          "delta": 0.0022,
          "percent_delta": 0.0068,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.551,
          "after": 0.5125,
          "delta": -0.0385,
          "percent_delta": -0.0699,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.52,
          "after": 0.5149,
          "delta": -0.0051,
          "percent_delta": -0.0098,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.364,
          "after": 0.3522,
          "delta": -0.0118,
          "percent_delta": -0.0324,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.449,
          "after": 0.4727,
          "delta": 0.0237,
          "percent_delta": 0.0528,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.245,
          "after": 0.2505,
          "delta": 0.0055,
          "percent_delta": 0.0224,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.02,
          "after": 3.9253,
          "delta": -0.0947,
          "percent_delta": -0.0236,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 69
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1787,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.9253,
        "predicted_AVG": 0.253,
        "predicted_BB": 0.443,
        "predicted_H": 0.993,
        "predicted_HBP": 0.028,
        "predicted_HR": 0.0611,
        "predicted_OBP": 0.3287,
        "predicted_R": 0.522,
        "predicted_RBI": 0.5244,
        "predicted_SLG": 0.3454,
        "predicted_SO": 0.4702
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1787,
          "after": 0.1787,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9253,
          "after": 3.9253,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2505,
          "after": 0.253,
          "delta": 0.0025,
          "percent_delta": 0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.4407,
          "after": 0.443,
          "delta": 0.0023,
          "percent_delta": 0.0052,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9853,
          "after": 0.993,
          "delta": 0.0077,
          "percent_delta": 0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.028,
          "after": 0.028,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0614,
          "after": 0.0611,
          "delta": -0.0003,
          "percent_delta": -0.0049,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3272,
          "after": 0.3287,
          "delta": 0.0015,
          "percent_delta": 0.0046,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5125,
          "after": 0.522,
          "delta": 0.0095,
          "percent_delta": 0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5149,
          "after": 0.5244,
          "delta": 0.0095,
          "percent_delta": 0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3522,
          "after": 0.3454,
          "delta": -0.0068,
          "percent_delta": -0.0193,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.4727,
          "after": 0.4702,
          "delta": -0.0025,
          "percent_delta": -0.0053,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3522,
          "after": 0.3454,
          "delta": -0.0068,
          "percent_delta": -0.0193,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.02), rates preserved: AVG=0.247 HR/AB=0.015",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1787,
          "after": 0.0,
          "delta": -0.1787,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9253,
          "after": 4.0,
          "delta": 0.0747,
          "percent_delta": 0.019,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.443,
          "after": 0.0,
          "delta": -0.443,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.993,
          "after": 1.0,
          "delta": 0.007,
          "percent_delta": 0.007,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.028,
          "after": 0.0,
          "delta": -0.028,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0611,
          "after": 0.0,
          "delta": -0.0611,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5244,
          "after": 1.0,
          "delta": 0.4756,
          "percent_delta": 0.9069,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.4702,
          "after": 0.0,
          "delta": -0.4702,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 3,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.5244,
          "after": 1.0,
          "delta": 0.4756,
          "percent_delta": 0.9069,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 0.4702,
          "after": 0.0,
          "delta": -0.4702,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=7.0, weight=0.076, BvP AVG=0.000)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9243,
        "bvp": 0.0757
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.522,
          "after": 1.0,
          "delta": 0.478,
          "percent_delta": 0.9157,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.522,
          "after": 1.0,
          "delta": 0.478,
          "percent_delta": 0.9157,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.253,
          "after": 0.25,
          "delta": -0.003,
          "percent_delta": -0.0119,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3287,
          "after": 0.25,
          "delta": -0.0787,
          "percent_delta": -0.2394,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3454,
          "after": 0.25,
          "delta": -0.0954,
          "percent_delta": -0.2762,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3454,
          "after": 0.25,
          "delta": -0.0954,
          "percent_delta": -0.2762,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 1,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.253,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_FB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3287,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3454,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.253,
          "delta": 0.003,
          "percent_delta": 0.0119,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3287,
          "delta": 0.0787,
          "percent_delta": 0.3149,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3454,
          "delta": 0.0954,
          "percent_delta": 0.3816,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3454,
          "delta": 0.0954,
          "percent_delta": 0.3816,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.174,
        "after": 0.0,
        "delta": -0.174,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.02,
        "after": 4.0,
        "delta": -0.02,
        "percent_delta": -0.005,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AVG",
        "before": 0.245,
        "after": 0.253,
        "delta": 0.008,
        "percent_delta": 0.0327,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.464,
        "after": 0.0,
        "delta": -0.464,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.99,
        "after": 0.0,
        "delta": -0.99,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.08,
        "after": 0.0,
        "delta": -0.08,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.325,
        "after": 0.3287,
        "delta": 0.0037,
        "percent_delta": 0.0114,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.551,
        "after": 0.0,
        "delta": -0.551,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.52,
        "after": 0.0,
        "delta": -0.52,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.364,
        "after": 0.3454,
        "delta": -0.0186,
        "percent_delta": -0.0511,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.449,
        "after": 2.0,
        "delta": 1.551,
        "percent_delta": 3.4543,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 2,
      "deboosted_metrics": 7,
      "better_metrics": 1,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.449,
        "after": 2.0,
        "delta": 1.551,
        "percent_delta": 3.4543,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.99,
        "after": 0.0,
        "delta": -0.99,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.174-
predicted_3B0.000-
predicted_AB4.020-
predicted_AVG0.245-
predicted_BB0.464-
predicted_H0.990-
predicted_HR0.080-
predicted_OBP0.325-
predicted_R0.551-
predicted_RBI0.520-
predicted_SLG0.364-
predicted_SO0.449-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1790.005
predicted_3B0.0000.000
predicted_AB3.925-0.095
predicted_AVG0.2510.006
predicted_BB0.441-0.023
predicted_H0.985-0.005
predicted_HBP0.028-
predicted_HR0.061-0.019
predicted_OBP0.3270.002
predicted_R0.512-0.039
predicted_RBI0.515-0.005
predicted_SLG0.352-0.012
predicted_SO0.4730.024
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1790.000
predicted_3B0.0000.000
predicted_AB3.9250.000
predicted_AVG0.2530.003
predicted_BB0.4430.002
predicted_H0.9930.008
predicted_HBP0.0280.000
predicted_HR0.061-0.000
predicted_OBP0.3290.002
predicted_R0.5220.010
predicted_RBI0.5240.009
predicted_SLG0.345-0.007
predicted_SO0.470-0.003
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.02), rates preserved: AVG=0.247 HR/AB=0.015

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO0.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=7.0, weight=0.076, BvP AVG=0.000)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI1.0000.000
SO1.0001.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.179
predicted_3B0.000-0.000
predicted_AB4.0000.075
predicted_AVG0.250-0.003
predicted_BB0.000-0.443
predicted_H1.0000.007
predicted_HR0.000-0.061
predicted_OBP0.250-0.079
predicted_R1.0000.478
predicted_RBI1.0000.476
predicted_SLG0.250-0.095
predicted_SO1.0000.530
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 69
Reference playing time: 4.020
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.0005.0001.0000.0000.0004.0001.0002.0002.0000.25000.31820.30000.25000.00000.20000.10000.1000
last_100.2010-39.0008.0002.0000.0000.0005.0004.0003.0006.0000.20510.25580.25640.20510.00000.12820.07690.1538
season0.6069-254.00071.00012.0000.0003.00029.00038.00032.00031.0000.27950.36180.36220.27950.01180.11420.12600.1221
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1850
predicted_3B0.0010
predicted_AB3.7960
predicted_AVG0.2580
predicted_BB0.4090
predicted_H0.9790
predicted_HBP0.0280
predicted_HR0.0360
predicted_OBP0.3302
predicted_R0.4600
predicted_RBI0.5080
predicted_SLG0.3361
predicted_SO0.5050
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.17400.18500.1787model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB4.02003.79603.9253model_form_blend
predicted_AVG0.24500.25800.2505model_form_blend
predicted_BB0.46400.40900.4407model_form_blend
predicted_H0.99000.97900.9853model_form_blend
predicted_HBP-0.02800.0280form_only
predicted_HR0.08000.03600.0614model_form_blend
predicted_OBP0.32500.33020.3272model_form_blend
predicted_R0.55100.46000.5125model_form_blend
predicted_RBI0.52000.50800.5149model_form_blend
predicted_SLG0.36400.33610.3522model_form_blend
predicted_SO0.44900.50500.4727model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date243
Season rows before report date243
Report year2026
Profile rows used69
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO2
SF0
HBP0
season_avg0.28

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.5
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI2
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB2
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B
gameID20260617_TOR@BOS
game_typefull
mlbID665489
playerID665489
playerNameVladimir Guerrero Jr.
pos1B
startedTrue
startingPosition1B
teamTOR
teamID29
game_date2026-06-17
sl_k_percent10.5
sl_bb_percent11.5
sl_woba0.325
sl_xwoba0.348
sl_xba0.293
sl_xslg0.411
sl_sweet_spot_percent28.6
sl_barrel_batted_rate6.2
sl_hard_hit_percent44.1
sl_exit_velocity_avg90.3
sl_launch_angle_avg8.2
sl_whiff_percent19.4
sl_swing_percent48.3
Yohendrick Pinango (682818) · BATTER · LF · Team TOR
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 94
All-history rows before 20260618: 94
System season_avg: 0.2920
Data season_avg (2026 season-to-date): 0.3028
Diff (system - data): -0.0108
System opponent_avg: 0.2920

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1540.0000.000Hitting_2B0.1810.000-0.1810.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.1903.0003.000Hitting_AB3.3723.000-0.3720.000
predicted_AVG0.2580.3330.333Hitting_AVG0.3030.0000.0300.333
predicted_BB0.1791.0000.000Hitting_BB0.1810.0000.8191.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.8201.0001.000Hitting_H1.0210.000-0.0211.000
predicted_HR0.1100.0000.000Hitting_HR0.1060.000-0.1060.000
predicted_OBP0.3170.5000.333Hitting_OBP0.3380.0000.1620.500
predicted_R0.2311.0000.000Hitting_R0.2660.0000.7341.000
predicted_RBI0.3801.0000.000Hitting_RBI0.5320.0000.4681.000
predicted_SLG0.4010.3330.333Hitting_SLG0.4510.000-0.1180.333
predicted_SO0.7181.0001.000Hitting_SO0.6810.0000.3191.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectboosted
Changed Metrics10
Boosted Metrics6
Deboosted Metrics4
Better Metrics5
Worse Metrics5
Biggest Boostpredicted_BB: 0.1790 -> 1.0000 (boost 0.8210, better)
Biggest Deboostpredicted_AB: 3.1900 -> 3.0000 (deboost -0.1900, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend00000--Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot21111predicted_SLG: 0.4021 -> 0.4081 (boost 0.0060, better)predicted_OBP: 0.3183 -> 0.3073 (deboost -0.0110, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_SO: 0.7359 -> 1.0000 (boost 0.2641, worse)predicted_RBI: 0.3694 -> 0.0000 (deboost -0.3694, worse)AB rounded to 3 (raw=3.20), rates preserved: AVG=0.262 HR/AB=0.032
5consistency_constraints10101-predicted_R: 0.2284 -> 0.0000 (deboost -0.2284, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2616 -> 0.3330 (boost 0.0714, better)predicted_SLG: 0.4081 -> 0.3330 (deboost -0.0751, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference33030predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.4081 (boost 0.0751, better)predicted_AVG: 0.3330 -> 0.2616 (deboost -0.0714, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "682818",
  "player_name": "Yohendrick Pinango",
  "position": "LF",
  "team": "TOR",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.154,
        "predicted_3B": 0.0,
        "predicted_AB": 3.19,
        "predicted_AVG": 0.258,
        "predicted_BB": 0.179,
        "predicted_H": 0.82,
        "predicted_HR": 0.11,
        "predicted_OBP": 0.317,
        "predicted_R": 0.231,
        "predicted_RBI": 0.38,
        "predicted_SLG": 0.401,
        "predicted_SO": 0.718
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1627,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.2014,
        "predicted_AVG": 0.2602,
        "predicted_BB": 0.2101,
        "predicted_H": 0.831,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.1021,
        "predicted_OBP": 0.3183,
        "predicted_R": 0.2243,
        "predicted_RBI": 0.3627,
        "predicted_SLG": 0.4021,
        "predicted_SO": 0.7397
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.154,
          "after": 0.1627,
          "delta": 0.0087,
          "percent_delta": 0.0565,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.19,
          "after": 3.2014,
          "delta": 0.0114,
          "percent_delta": 0.0036,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.258,
          "after": 0.2602,
          "delta": 0.0022,
          "percent_delta": 0.0085,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.179,
          "after": 0.2101,
          "delta": 0.0311,
          "percent_delta": 0.1737,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.82,
          "after": 0.831,
          "delta": 0.011,
          "percent_delta": 0.0134,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.11,
          "after": 0.1021,
          "delta": -0.0079,
          "percent_delta": -0.0718,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.317,
          "after": 0.3183,
          "delta": 0.0013,
          "percent_delta": 0.0041,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.231,
          "after": 0.2243,
          "delta": -0.0067,
          "percent_delta": -0.029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.38,
          "after": 0.3627,
          "delta": -0.0173,
          "percent_delta": -0.0455,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.401,
          "after": 0.4021,
          "delta": 0.0011,
          "percent_delta": 0.0027,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.718,
          "after": 0.7397,
          "delta": 0.0217,
          "percent_delta": 0.0302,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 39
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1627,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.2014,
        "predicted_AVG": 0.2616,
        "predicted_BB": 0.2112,
        "predicted_H": 0.8375,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.1016,
        "predicted_OBP": 0.3073,
        "predicted_R": 0.2284,
        "predicted_RBI": 0.3694,
        "predicted_SLG": 0.4081,
        "predicted_SO": 0.7359
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1627,
          "after": 0.1627,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.2014,
          "after": 3.2014,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2602,
          "after": 0.2616,
          "delta": 0.0014,
          "percent_delta": 0.0054,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.2101,
          "after": 0.2112,
          "delta": 0.0011,
          "percent_delta": 0.0052,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.831,
          "after": 0.8375,
          "delta": 0.0065,
          "percent_delta": 0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.006,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1021,
          "after": 0.1016,
          "delta": -0.0005,
          "percent_delta": -0.0049,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3183,
          "after": 0.3073,
          "delta": -0.011,
          "percent_delta": -0.0346,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.2243,
          "after": 0.2284,
          "delta": 0.0041,
          "percent_delta": 0.0183,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3627,
          "after": 0.3694,
          "delta": 0.0067,
          "percent_delta": 0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4021,
          "after": 0.4081,
          "delta": 0.006,
          "percent_delta": 0.0149,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7397,
          "after": 0.7359,
          "delta": -0.0038,
          "percent_delta": -0.0051,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.4021,
          "after": 0.4081,
          "delta": 0.006,
          "percent_delta": 0.0149,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3183,
          "after": 0.3073,
          "delta": -0.011,
          "percent_delta": -0.0346,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.20), rates preserved: AVG=0.262 HR/AB=0.032",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1627,
          "after": 0.0,
          "delta": -0.1627,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.2014,
          "after": 3.0,
          "delta": -0.2014,
          "percent_delta": -0.0629,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2112,
          "after": 0.0,
          "delta": -0.2112,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8375,
          "after": 1.0,
          "delta": 0.1625,
          "percent_delta": 0.194,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.0,
          "delta": -0.006,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1016,
          "after": 0.0,
          "delta": -0.1016,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3694,
          "after": 0.0,
          "delta": -0.3694,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7359,
          "after": 1.0,
          "delta": 0.2641,
          "percent_delta": 0.3589,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.7359,
          "after": 1.0,
          "delta": 0.2641,
          "percent_delta": 0.3589,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3694,
          "after": 0.0,
          "delta": -0.3694,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.2284,
          "after": 0.0,
          "delta": -0.2284,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.2284,
          "after": 0.0,
          "delta": -0.2284,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2616,
          "after": 0.333,
          "delta": 0.0714,
          "percent_delta": 0.2729,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3073,
          "after": 0.333,
          "delta": 0.0257,
          "percent_delta": 0.0836,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4081,
          "after": 0.333,
          "delta": -0.0751,
          "percent_delta": -0.184,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2616,
          "after": 0.333,
          "delta": 0.0714,
          "percent_delta": 0.2729,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4081,
          "after": 0.333,
          "delta": -0.0751,
          "percent_delta": -0.184,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2616,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_LF": 0.0,
        "predicted_OBP": 0.3073,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4081,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2616,
          "delta": -0.0714,
          "percent_delta": -0.2144,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3073,
          "delta": -0.0257,
          "percent_delta": -0.0772,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4081,
          "delta": 0.0751,
          "percent_delta": 0.2256,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4081,
          "delta": 0.0751,
          "percent_delta": 0.2256,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2616,
          "delta": -0.0714,
          "percent_delta": -0.2144,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.154,
        "after": 0.0,
        "delta": -0.154,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.19,
        "after": 3.0,
        "delta": -0.19,
        "percent_delta": -0.0596,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.258,
        "after": 0.2616,
        "delta": 0.0036,
        "percent_delta": 0.014,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.179,
        "after": 1.0,
        "delta": 0.821,
        "percent_delta": 4.5866,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.82,
        "after": 1.0,
        "delta": 0.18,
        "percent_delta": 0.2195,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.11,
        "after": 0.0,
        "delta": -0.11,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.317,
        "after": 0.3073,
        "delta": -0.0097,
        "percent_delta": -0.0306,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.231,
        "after": 1.0,
        "delta": 0.769,
        "percent_delta": 3.329,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.38,
        "after": 1.0,
        "delta": 0.62,
        "percent_delta": 1.6316,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.401,
        "after": 0.4081,
        "delta": 0.0071,
        "percent_delta": 0.0177,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.718,
        "after": 1.0,
        "delta": 0.282,
        "percent_delta": 0.3928,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 6,
      "deboosted_metrics": 4,
      "better_metrics": 5,
      "worse_metrics": 5,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.179,
        "after": 1.0,
        "delta": 0.821,
        "percent_delta": 4.5866,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 3.19,
        "after": 3.0,
        "delta": -0.19,
        "percent_delta": -0.0596,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "boosted"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.154-
predicted_3B0.000-
predicted_AB3.190-
predicted_AVG0.258-
predicted_BB0.179-
predicted_H0.820-
predicted_HR0.110-
predicted_OBP0.317-
predicted_R0.231-
predicted_RBI0.380-
predicted_SLG0.401-
predicted_SO0.718-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1630.009
predicted_3B0.0010.001
predicted_AB3.2010.011
predicted_AVG0.2600.002
predicted_BB0.2100.031
predicted_H0.8310.011
predicted_HBP0.006-
predicted_HR0.102-0.008
predicted_OBP0.3180.001
predicted_R0.224-0.007
predicted_RBI0.363-0.017
predicted_SLG0.4020.001
predicted_SO0.7400.022
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1630.000
predicted_3B0.0010.000
predicted_AB3.2010.000
predicted_AVG0.2620.001
predicted_BB0.2110.001
predicted_H0.8380.007
predicted_HBP0.0060.000
predicted_HR0.102-0.001
predicted_OBP0.307-0.011
predicted_R0.2280.004
predicted_RBI0.3690.007
predicted_SLG0.4080.006
predicted_SO0.736-0.004
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.20), rates preserved: AVG=0.262 HR/AB=0.032

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.163
predicted_3B0.000-0.001
predicted_AB3.000-0.201
predicted_AVG0.3330.071
predicted_BB0.000-0.211
predicted_H1.0000.162
predicted_HR0.000-0.102
predicted_OBP0.3330.026
predicted_R0.000-0.228
predicted_RBI0.000-0.369
predicted_SLG0.333-0.075
predicted_SO1.0000.264
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R1.0001.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 39
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-15.0003.0001.0000.0000.0000.0000.0002.0004.0000.20000.29410.26670.20000.00000.00000.13330.2667
last_100.2010-31.0008.0002.0000.0001.0002.0001.0003.0008.0000.25810.32350.41940.25810.03230.06450.09680.2581
season0.6039-120.00035.0006.0000.0004.00017.0009.0007.00028.0000.29170.33070.44170.29170.03330.14170.05830.2333
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1760
predicted_3B0.0020
predicted_AB3.2190
predicted_AVG0.2636
predicted_BB0.2580
predicted_H0.8480
predicted_HBP0.0060
predicted_HR0.0900
predicted_OBP0.3203
predicted_R0.2140
predicted_RBI0.3360
predicted_SLG0.4037
predicted_SO0.7730
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.15400.17600.1627model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB3.19003.21903.2014model_form_blend
predicted_AVG0.25800.26360.2602model_form_blend
predicted_BB0.17900.25800.2101model_form_blend
predicted_H0.82000.84800.8310model_form_blend
predicted_HBP-0.00600.0060form_only
predicted_HR0.11000.09000.1021model_form_blend
predicted_OBP0.31700.32030.3183model_form_blend
predicted_R0.23100.21400.2243model_form_blend
predicted_RBI0.38000.33600.3627model_form_blend
predicted_SLG0.40100.40370.4021model_form_blend
predicted_SO0.71800.77300.7397model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date94
Season rows before report date94
Report year2026
Profile rows used39
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B0
3B0
HR0
R1
RBI1
BB1
SO1
SF0
HBP0
season_avg0.292

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP1
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedRF
gameID20260614_NYY@TOR
game_typefull
mlbID682818
playerID682818
playerNameYohendrick Pinango
posLF
startedTrue
startingPositionRF
teamTOR
teamID29
game_date2026-06-14
sl_k_percent21.9
sl_bb_percent6.3
sl_woba0.342
sl_xwoba0.326
sl_xba0.282
sl_xslg0.418
sl_sweet_spot_percent34.8
sl_barrel_batted_rate7.6
sl_hard_hit_percent45.7
sl_exit_velocity_avg91.2
sl_launch_angle_avg7.6
sl_whiff_percent25.9
sl_swing_percent50.6
George Springer (543807) · BATTER · DH · Team TOR
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 176
All-history rows before 20260618: 176
System season_avg: 0.2120
Data season_avg (2026 season-to-date): 0.2138
Diff (system - data): -0.0018
System opponent_avg: 0.2690

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1920.0000.000Hitting_2B0.2330.000-0.2330.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB4.3303.0004.000Hitting_AB4.0403.000-1.0400.000
predicted_AVG0.2280.0000.250Hitting_AVG0.2140.000-0.2140.000
predicted_BB0.4811.0001.000Hitting_BB0.4320.0000.5681.000
predicted_CS-0.0000.000BaseRunning_CS0.0340.000-0.0340.000
predicted_H0.9900.0001.000Hitting_H0.8640.000-0.8640.000
predicted_HR0.1900.0000.000Hitting_HR0.1420.000-0.1420.000
predicted_OBP0.3410.2500.400Hitting_OBP0.2960.250-0.0460.000
predicted_R0.4230.0000.000Hitting_R0.4200.000-0.4200.000
predicted_RBI0.5600.0001.000Hitting_RBI0.3980.000-0.3980.000
predicted_SLG0.4180.0000.250Hitting_SLG0.3770.000-0.3770.000
predicted_SO0.8080.0001.000Hitting_SO0.9031.000-0.903-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics2
Deboosted Metrics8
Better Metrics3
Worse Metrics7
Biggest Boostpredicted_BB: 0.4810 -> 1.0000 (boost 0.5190, better)
Biggest Deboostpredicted_AB: 4.3300 -> 3.0000 (deboost -1.3300, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend53232predicted_BB: 0.4810 -> 0.5484 (boost 0.0674, better)predicted_AB: 4.3300 -> 4.0485 (deboost -0.2815, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.3461 -> 0.3253 (deboost -0.0208, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling74334predicted_BB: 0.5513 -> 1.0000 (boost 0.4487, better)predicted_HR: 0.1924 -> 0.0000 (deboost -0.1924, worse)AB rounded to 4 (raw=4.33), rates preserved: AVG=0.218 HR/AB=0.044
5bvp_blend00000--Sample-size BvP blend (BvP AB=26.0, weight=0.186, BvP AVG=0.269)
6consistency_constraints10101-predicted_R: 0.4804 -> 0.0000 (deboost -0.4804, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context32121predicted_OBP: 0.3253 -> 0.4000 (boost 0.0747, better)predicted_SLG: 0.4182 -> 0.2500 (deboost -0.1682, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference40413-predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final31212predicted_SLG: 0.2500 -> 0.4182 (boost 0.1682, better)predicted_OBP: 0.4000 -> 0.3253 (deboost -0.0747, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "543807",
  "player_name": "George Springer",
  "position": "DH",
  "team": "TOR",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.192,
        "predicted_3B": 0.0,
        "predicted_AB": 4.33,
        "predicted_AVG": 0.228,
        "predicted_BB": 0.481,
        "predicted_H": 0.99,
        "predicted_HR": 0.19,
        "predicted_OBP": 0.341,
        "predicted_R": 0.423,
        "predicted_RBI": 0.56,
        "predicted_SLG": 0.418,
        "predicted_SO": 0.808
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1695,
        "predicted_3B": 0.0008,
        "predicted_AB": 4.0485,
        "predicted_AVG": 0.2315,
        "predicted_BB": 0.5484,
        "predicted_H": 0.9376,
        "predicted_HBP": 0.091,
        "predicted_HR": 0.1933,
        "predicted_OBP": 0.3461,
        "predicted_R": 0.4717,
        "predicted_RBI": 0.5471,
        "predicted_SLG": 0.4262,
        "predicted_SO": 0.7623
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.192,
          "after": 0.1695,
          "delta": -0.0225,
          "percent_delta": -0.1172,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.33,
          "after": 4.0485,
          "delta": -0.2815,
          "percent_delta": -0.065,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.228,
          "after": 0.2315,
          "delta": 0.0035,
          "percent_delta": 0.0154,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.481,
          "after": 0.5484,
          "delta": 0.0674,
          "percent_delta": 0.1401,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.99,
          "after": 0.9376,
          "delta": -0.0524,
          "percent_delta": -0.0529,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.19,
          "after": 0.1933,
          "delta": 0.0033,
          "percent_delta": 0.0174,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.341,
          "after": 0.3461,
          "delta": 0.0051,
          "percent_delta": 0.015,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.423,
          "after": 0.4717,
          "delta": 0.0487,
          "percent_delta": 0.1151,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.56,
          "after": 0.5471,
          "delta": -0.0129,
          "percent_delta": -0.023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.418,
          "after": 0.4262,
          "delta": 0.0082,
          "percent_delta": 0.0196,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.808,
          "after": 0.7623,
          "delta": -0.0457,
          "percent_delta": -0.0566,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 3,
        "deboosted_metrics": 2,
        "better_metrics": 3,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.481,
          "after": 0.5484,
          "delta": 0.0674,
          "percent_delta": 0.1401,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.33,
          "after": 4.0485,
          "delta": -0.2815,
          "percent_delta": -0.065,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 52
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1695,
        "predicted_3B": 0.0008,
        "predicted_AB": 4.0485,
        "predicted_AVG": 0.2334,
        "predicted_BB": 0.5513,
        "predicted_H": 0.9449,
        "predicted_HBP": 0.091,
        "predicted_HR": 0.1924,
        "predicted_OBP": 0.3253,
        "predicted_R": 0.4804,
        "predicted_RBI": 0.5572,
        "predicted_SLG": 0.4182,
        "predicted_SO": 0.7583
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1695,
          "after": 0.1695,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0485,
          "after": 4.0485,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2315,
          "after": 0.2334,
          "delta": 0.0019,
          "percent_delta": 0.0082,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.5484,
          "after": 0.5513,
          "delta": 0.0029,
          "percent_delta": 0.0053,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9376,
          "after": 0.9449,
          "delta": 0.0073,
          "percent_delta": 0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.091,
          "after": 0.091,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1933,
          "after": 0.1924,
          "delta": -0.0009,
          "percent_delta": -0.0047,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3461,
          "after": 0.3253,
          "delta": -0.0208,
          "percent_delta": -0.0601,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4717,
          "after": 0.4804,
          "delta": 0.0087,
          "percent_delta": 0.0184,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5471,
          "after": 0.5572,
          "delta": 0.0101,
          "percent_delta": 0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4262,
          "after": 0.4182,
          "delta": -0.008,
          "percent_delta": -0.0188,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7623,
          "after": 0.7583,
          "delta": -0.004,
          "percent_delta": -0.0052,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3461,
          "after": 0.3253,
          "delta": -0.0208,
          "percent_delta": -0.0601,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.33), rates preserved: AVG=0.218 HR/AB=0.044",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1695,
          "after": 0.0,
          "delta": -0.1695,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0485,
          "after": 4.0,
          "delta": -0.0485,
          "percent_delta": -0.012,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.5513,
          "after": 1.0,
          "delta": 0.4487,
          "percent_delta": 0.8139,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9449,
          "after": 1.0,
          "delta": 0.0551,
          "percent_delta": 0.0583,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.091,
          "after": 0.0,
          "delta": -0.091,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1924,
          "after": 0.0,
          "delta": -0.1924,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5572,
          "after": 1.0,
          "delta": 0.4428,
          "percent_delta": 0.7947,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7583,
          "after": 1.0,
          "delta": 0.2417,
          "percent_delta": 0.3187,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 4,
        "deboosted_metrics": 3,
        "better_metrics": 3,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.5513,
          "after": 1.0,
          "delta": 0.4487,
          "percent_delta": 0.8139,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_HR",
          "before": 0.1924,
          "after": 0.0,
          "delta": -0.1924,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=26.0, weight=0.186, BvP AVG=0.269)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.8143,
        "bvp": 0.1857
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4804,
          "after": 0.0,
          "delta": -0.4804,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4804,
          "after": 0.0,
          "delta": -0.4804,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.4,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2334,
          "after": 0.25,
          "delta": 0.0166,
          "percent_delta": 0.0711,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3253,
          "after": 0.4,
          "delta": 0.0747,
          "percent_delta": 0.2296,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4182,
          "after": 0.25,
          "delta": -0.1682,
          "percent_delta": -0.4022,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_OBP",
          "before": 0.3253,
          "after": 0.4,
          "delta": 0.0747,
          "percent_delta": 0.2296,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4182,
          "after": 0.25,
          "delta": -0.1682,
          "percent_delta": -0.4022,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 0,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2334,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3253,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4182,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2334,
          "delta": -0.0166,
          "percent_delta": -0.0664,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3253,
          "delta": -0.0747,
          "percent_delta": -0.1868,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4182,
          "delta": 0.1682,
          "percent_delta": 0.6728,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4182,
          "delta": 0.1682,
          "percent_delta": 0.6728,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.4,
          "after": 0.3253,
          "delta": -0.0747,
          "percent_delta": -0.1868,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.192,
        "after": 0.0,
        "delta": -0.192,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.33,
        "after": 3.0,
        "delta": -1.33,
        "percent_delta": -0.3072,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.228,
        "after": 0.2334,
        "delta": 0.0054,
        "percent_delta": 0.0237,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.481,
        "after": 1.0,
        "delta": 0.519,
        "percent_delta": 1.079,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.99,
        "after": 0.0,
        "delta": -0.99,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.19,
        "after": 0.0,
        "delta": -0.19,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.341,
        "after": 0.3253,
        "delta": -0.0157,
        "percent_delta": -0.046,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.423,
        "after": 0.0,
        "delta": -0.423,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.56,
        "after": 0.0,
        "delta": -0.56,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.418,
        "after": 0.4182,
        "delta": 0.0002,
        "percent_delta": 0.0005,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.808,
        "after": 0.0,
        "delta": -0.808,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 2,
      "deboosted_metrics": 8,
      "better_metrics": 3,
      "worse_metrics": 7,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.481,
        "after": 1.0,
        "delta": 0.519,
        "percent_delta": 1.079,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_AB",
        "before": 4.33,
        "after": 3.0,
        "delta": -1.33,
        "percent_delta": -0.3072,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.192-
predicted_3B0.000-
predicted_AB4.330-
predicted_AVG0.228-
predicted_BB0.481-
predicted_H0.990-
predicted_HR0.190-
predicted_OBP0.341-
predicted_R0.423-
predicted_RBI0.560-
predicted_SLG0.418-
predicted_SO0.808-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.170-0.022
predicted_3B0.0010.001
predicted_AB4.048-0.282
predicted_AVG0.2320.004
predicted_BB0.5480.067
predicted_H0.938-0.052
predicted_HBP0.091-
predicted_HR0.1930.003
predicted_OBP0.3460.005
predicted_R0.4720.049
predicted_RBI0.547-0.013
predicted_SLG0.4260.008
predicted_SO0.762-0.046
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1700.000
predicted_3B0.0010.000
predicted_AB4.0480.000
predicted_AVG0.2330.002
predicted_BB0.5510.003
predicted_H0.9450.007
predicted_HBP0.0910.000
predicted_HR0.192-0.001
predicted_OBP0.325-0.021
predicted_R0.4800.009
predicted_RBI0.5570.010
predicted_SLG0.418-0.008
predicted_SO0.758-0.004
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.33), rates preserved: AVG=0.218 HR/AB=0.044

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB1.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=26.0, weight=0.186, BvP AVG=0.269)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
H1.0000.000
HR0.0000.000
RBI1.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB1.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.170
predicted_3B0.000-0.001
predicted_AB4.000-0.048
predicted_AVG0.2500.017
predicted_BB1.0000.449
predicted_H1.0000.055
predicted_HR0.000-0.192
predicted_OBP0.4000.075
predicted_R0.000-0.480
predicted_RBI1.0000.443
predicted_SLG0.250-0.168
predicted_SO1.0000.242
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB1.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 52
Reference playing time: 4.330
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0005.0000.0000.0002.0005.0004.0005.0002.0000.29410.45830.64710.29410.11770.29410.29410.1177
last_100.2010-33.0008.0001.0000.0002.0005.0006.0009.0006.0000.24240.40910.45450.24240.06060.15150.27270.1818
season0.6052-198.00042.00010.0000.0007.00019.00022.00025.00042.0000.21210.30840.36870.21210.03530.09600.12630.2121
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1380
predicted_3B0.0020
predicted_AB3.6530
predicted_AVG0.2364
predicted_BB0.6430
predicted_H0.8640
predicted_HBP0.0910
predicted_HR0.1980
predicted_OBP0.3533
predicted_R0.5400
predicted_RBI0.5290
predicted_SLG0.4378
predicted_SO0.6980
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.19200.13800.1695model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB4.33003.65304.0485model_form_blend
predicted_AVG0.22800.23640.2315model_form_blend
predicted_BB0.48100.64300.5484model_form_blend
predicted_H0.99000.86400.9376model_form_blend
predicted_HBP-0.09100.0910form_only
predicted_HR0.19000.19800.1933model_form_blend
predicted_OBP0.34100.35330.3461model_form_blend
predicted_R0.42300.54000.4717model_form_blend
predicted_RBI0.56000.52900.5471model_form_blend
predicted_SLG0.41800.43780.4262model_form_blend
predicted_SO0.80800.69800.7623model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date176
Season rows before report date176
Report year2026
Profile rows used52
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO0
SF0
HBP0
season_avg0.212

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB2
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP1
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB0
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedDH
gameID20260617_TOR@BOS
game_typefull
mlbID543807
playerID543807
playerNameGeorge Springer
posDH
startedTrue
startingPositionDH
teamTOR
teamID29
game_date2026-06-17
sl_k_percent18.3
sl_bb_percent10.9
sl_woba0.304
sl_xwoba0.312
sl_xba0.224
sl_xslg0.381
sl_sweet_spot_percent30.6
sl_barrel_batted_rate8.3
sl_hard_hit_percent36.9
sl_exit_velocity_avg88.1
sl_launch_angle_avg14.6
sl_whiff_percent24.0
sl_swing_percent48.8
Jesús Sánchez (660821) · BATTER · RF · Team TOR
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 187
All-history rows before 20260618: 187
System season_avg: 0.2880
Data season_avg (2026 season-to-date): 0.2787
Diff (system - data): 0.0093
System opponent_avg: 0.1580

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2091.0000.000Hitting_2B0.1981.0000.8020.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.9554.0003.000Hitting_AB3.3583.0000.6421.000
predicted_AVG0.2560.2500.333Hitting_AVG0.2790.333-0.029-0.083
predicted_BB0.1340.0000.000Hitting_BB0.1550.000-0.1550.000
predicted_CS-0.0000.000BaseRunning_CS0.0110.000-0.0110.000
predicted_H0.3301.0001.000Hitting_H0.9361.0000.0640.000
predicted_HR0.0600.0000.000Hitting_HR0.1390.000-0.1390.000
predicted_OBP0.3040.2500.333Hitting_OBP0.3210.333-0.071-0.083
predicted_R0.3280.0000.000Hitting_R0.4010.000-0.4010.000
predicted_RBI0.1800.0000.000Hitting_RBI0.5670.000-0.5670.000
predicted_SLG0.4520.5000.333Hitting_SLG0.4620.6670.038-0.167
predicted_SO0.6722.0001.000Hitting_SO0.7750.0001.2252.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics4
Deboosted Metrics7
Better Metrics3
Worse Metrics8
Biggest Boostpredicted_SO: 0.6720 -> 2.0000 (boost 1.3280, worse)
Biggest Deboostpredicted_R: 0.3280 -> 0.0000 (deboost -0.3280, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend55050predicted_H: 0.3300 -> 0.5528 (boost 0.2228, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.4688 -> 0.3496 (deboost -0.1192, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62415predicted_H: 0.5571 -> 1.0000 (boost 0.4429, better)predicted_RBI: 0.2513 -> 0.0000 (deboost -0.2513, worse)AB rounded to 3 (raw=3.00), rates preserved: AVG=0.186 HR/AB=0.029
5bvp_blend00000--Sample-size BvP blend (BvP AB=8.0, weight=0.084, BvP AVG=0.125)
6consistency_constraints10101-predicted_R: 0.3299 -> 0.0000 (deboost -0.3299, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context32121predicted_AVG: 0.1857 -> 0.3330 (boost 0.1473, better)predicted_SLG: 0.3496 -> 0.3330 (deboost -0.0166, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference33021predicted_2B: 0.0000 -> 1.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
9current_json_final31212predicted_SLG: 0.3330 -> 0.3496 (boost 0.0166, better)predicted_AVG: 0.3330 -> 0.1857 (deboost -0.1473, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "660821",
  "player_name": "Jesús Sánchez",
  "position": "RF",
  "team": "TOR",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.209,
        "predicted_3B": 0.0,
        "predicted_AB": 2.955,
        "predicted_AVG": 0.256,
        "predicted_BB": 0.134,
        "predicted_H": 0.33,
        "predicted_HR": 0.06,
        "predicted_OBP": 0.304,
        "predicted_R": 0.328,
        "predicted_RBI": 0.18,
        "predicted_SLG": 0.452,
        "predicted_SO": 0.672
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2305,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.0006,
        "predicted_AVG": 0.2673,
        "predicted_BB": 0.1671,
        "predicted_H": 0.5528,
        "predicted_HBP": 0.036,
        "predicted_HR": 0.0873,
        "predicted_OBP": 0.3165,
        "predicted_R": 0.3239,
        "predicted_RBI": 0.2467,
        "predicted_SLG": 0.4688,
        "predicted_SO": 0.6865
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.209,
          "after": 0.2305,
          "delta": 0.0215,
          "percent_delta": 0.1029,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.955,
          "after": 3.0006,
          "delta": 0.0456,
          "percent_delta": 0.0154,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.256,
          "after": 0.2673,
          "delta": 0.0113,
          "percent_delta": 0.0441,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.134,
          "after": 0.1671,
          "delta": 0.0331,
          "percent_delta": 0.247,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.33,
          "after": 0.5528,
          "delta": 0.2228,
          "percent_delta": 0.6752,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.06,
          "after": 0.0873,
          "delta": 0.0273,
          "percent_delta": 0.455,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.304,
          "after": 0.3165,
          "delta": 0.0125,
          "percent_delta": 0.0411,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.328,
          "after": 0.3239,
          "delta": -0.0041,
          "percent_delta": -0.0125,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.18,
          "after": 0.2467,
          "delta": 0.0667,
          "percent_delta": 0.3706,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.452,
          "after": 0.4688,
          "delta": 0.0168,
          "percent_delta": 0.0372,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.672,
          "after": 0.6865,
          "delta": 0.0145,
          "percent_delta": 0.0216,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 5,
        "deboosted_metrics": 0,
        "better_metrics": 5,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.33,
          "after": 0.5528,
          "delta": 0.2228,
          "percent_delta": 0.6752,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 67
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2305,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.0006,
        "predicted_AVG": 0.1857,
        "predicted_BB": 0.168,
        "predicted_H": 0.5571,
        "predicted_HBP": 0.036,
        "predicted_HR": 0.0869,
        "predicted_OBP": 0.2288,
        "predicted_R": 0.3299,
        "predicted_RBI": 0.2513,
        "predicted_SLG": 0.3496,
        "predicted_SO": 0.6829
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2305,
          "after": 0.2305,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0006,
          "after": 3.0006,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2673,
          "after": 0.1857,
          "delta": -0.0816,
          "percent_delta": -0.3053,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1671,
          "after": 0.168,
          "delta": 0.0009,
          "percent_delta": 0.0054,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.5528,
          "after": 0.5571,
          "delta": 0.0043,
          "percent_delta": 0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.036,
          "after": 0.036,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0873,
          "after": 0.0869,
          "delta": -0.0004,
          "percent_delta": -0.0046,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3165,
          "after": 0.2288,
          "delta": -0.0877,
          "percent_delta": -0.2771,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3239,
          "after": 0.3299,
          "delta": 0.006,
          "percent_delta": 0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2467,
          "after": 0.2513,
          "delta": 0.0046,
          "percent_delta": 0.0186,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4688,
          "after": 0.3496,
          "delta": -0.1192,
          "percent_delta": -0.2543,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6865,
          "after": 0.6829,
          "delta": -0.0036,
          "percent_delta": -0.0052,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4688,
          "after": 0.3496,
          "delta": -0.1192,
          "percent_delta": -0.2543,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.00), rates preserved: AVG=0.186 HR/AB=0.029",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2305,
          "after": 0.0,
          "delta": -0.2305,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0006,
          "after": 3.0,
          "delta": -0.0006,
          "percent_delta": -0.0002,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.168,
          "after": 0.0,
          "delta": -0.168,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.5571,
          "after": 1.0,
          "delta": 0.4429,
          "percent_delta": 0.795,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.036,
          "after": 0.0,
          "delta": -0.036,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0869,
          "after": 0.0,
          "delta": -0.0869,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2513,
          "after": 0.0,
          "delta": -0.2513,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6829,
          "after": 1.0,
          "delta": 0.3171,
          "percent_delta": 0.4643,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.5571,
          "after": 1.0,
          "delta": 0.4429,
          "percent_delta": 0.795,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.2513,
          "after": 0.0,
          "delta": -0.2513,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=8.0, weight=0.084, BvP AVG=0.125)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.9158,
        "bvp": 0.0842
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3299,
          "after": 0.0,
          "delta": -0.3299,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3299,
          "after": 0.0,
          "delta": -0.3299,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1857,
          "after": 0.333,
          "delta": 0.1473,
          "percent_delta": 0.7932,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2288,
          "after": 0.333,
          "delta": 0.1042,
          "percent_delta": 0.4554,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3496,
          "after": 0.333,
          "delta": -0.0166,
          "percent_delta": -0.0475,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1857,
          "after": 0.333,
          "delta": 0.1473,
          "percent_delta": 0.7932,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3496,
          "after": 0.333,
          "delta": -0.0166,
          "percent_delta": -0.0475,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.1857,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2288,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_RF": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3496,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1857,
          "delta": -0.1473,
          "percent_delta": -0.4424,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2288,
          "delta": -0.1042,
          "percent_delta": -0.3128,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3496,
          "delta": 0.0166,
          "percent_delta": 0.0499,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3496,
          "delta": 0.0166,
          "percent_delta": 0.0499,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1857,
          "delta": -0.1473,
          "percent_delta": -0.4424,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.209,
        "after": 1.0,
        "delta": 0.791,
        "percent_delta": 3.7847,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.955,
        "after": 4.0,
        "delta": 1.045,
        "percent_delta": 0.3536,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.256,
        "after": 0.1857,
        "delta": -0.0703,
        "percent_delta": -0.2746,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.134,
        "after": 0.0,
        "delta": -0.134,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.33,
        "after": 1.0,
        "delta": 0.67,
        "percent_delta": 2.0303,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.06,
        "after": 0.0,
        "delta": -0.06,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.304,
        "after": 0.2288,
        "delta": -0.0752,
        "percent_delta": -0.2474,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.328,
        "after": 0.0,
        "delta": -0.328,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.18,
        "after": 0.0,
        "delta": -0.18,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.452,
        "after": 0.3496,
        "delta": -0.1024,
        "percent_delta": -0.2265,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.672,
        "after": 2.0,
        "delta": 1.328,
        "percent_delta": 1.9762,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 4,
      "deboosted_metrics": 7,
      "better_metrics": 3,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.672,
        "after": 2.0,
        "delta": 1.328,
        "percent_delta": 1.9762,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_R",
        "before": 0.328,
        "after": 0.0,
        "delta": -0.328,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.209-
predicted_3B0.000-
predicted_AB2.955-
predicted_AVG0.256-
predicted_BB0.134-
predicted_H0.330-
predicted_HR0.060-
predicted_OBP0.304-
predicted_R0.328-
predicted_RBI0.180-
predicted_SLG0.452-
predicted_SO0.672-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2310.022
predicted_3B0.0000.000
predicted_AB3.0010.046
predicted_AVG0.2670.011
predicted_BB0.1670.033
predicted_H0.5530.223
predicted_HBP0.036-
predicted_HR0.0870.027
predicted_OBP0.3170.013
predicted_R0.324-0.004
predicted_RBI0.2470.067
predicted_SLG0.4690.017
predicted_SO0.6860.014
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2310.000
predicted_3B0.0000.000
predicted_AB3.0010.000
predicted_AVG0.186-0.082
predicted_BB0.1680.001
predicted_H0.5570.004
predicted_HBP0.0360.000
predicted_HR0.087-0.000
predicted_OBP0.229-0.088
predicted_R0.3300.006
predicted_RBI0.2510.005
predicted_SLG0.350-0.119
predicted_SO0.683-0.004
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.00), rates preserved: AVG=0.186 HR/AB=0.029

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=8.0, weight=0.084, BvP AVG=0.125)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.231
predicted_3B0.000-0.000
predicted_AB3.000-0.001
predicted_AVG0.3330.147
predicted_BB0.000-0.168
predicted_H1.0000.443
predicted_HR0.000-0.087
predicted_OBP0.3330.104
predicted_R0.000-0.330
predicted_RBI0.000-0.251
predicted_SLG0.333-0.017
predicted_SO1.0000.317
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 67
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-14.0004.0002.0000.0001.0001.0001.0002.0004.0000.28570.37500.64290.28570.07140.07140.14290.2857
last_100.2010-31.0009.0003.0000.0001.0001.0003.0002.0006.0000.29030.33330.48390.29030.03230.03230.06450.1935
season0.6067-198.00057.00014.0000.0007.00029.00022.0009.00045.0000.28790.32560.46460.28790.03530.14650.04540.2273
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2610
predicted_3B0.0010
predicted_AB3.0650
predicted_AVG0.2834
predicted_BB0.2140
predicted_H0.8680
predicted_HBP0.0360
predicted_HR0.1260
predicted_OBP0.3341
predicted_R0.3180
predicted_RBI0.3410
predicted_SLG0.4926
predicted_SO0.7070
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.20900.26100.2305model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB2.95503.06503.0006model_form_blend
predicted_AVG0.25600.28340.2673model_form_blend
predicted_BB0.13400.21400.1671model_form_blend
predicted_H0.33000.86800.5528model_form_blend
predicted_HBP-0.03600.0360form_only
predicted_HR0.06000.12600.0873model_form_blend
predicted_OBP0.30400.33410.3165model_form_blend
predicted_R0.32800.31800.3239model_form_blend
predicted_RBI0.18000.34100.2467model_form_blend
predicted_SLG0.45200.49260.4688model_form_blend
predicted_SO0.67200.70700.6865model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date187
Season rows before report date187
Report year2026
Profile rows used67
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B1
3B0
HR0
R0
RBI0
BB0
SO2
SF0
HBP0
season_avg0.288

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB2
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedRF
gameID20260617_TOR@BOS
game_typefull
mlbID660821
playerID660821
playerNameJesús Sánchez
posRF
startedTrue
startingPositionRF
teamTOR
teamID29
game_date2026-06-17
sl_k_percent20.9
sl_bb_percent4.2
sl_woba0.34
sl_xwoba0.344
sl_xba0.285
sl_xslg0.477
sl_sweet_spot_percent34.4
sl_barrel_batted_rate11.5
sl_hard_hit_percent46.5
sl_exit_velocity_avg91.0
sl_launch_angle_avg11.4
sl_whiff_percent24.8
sl_swing_percent55.5
Nathan Lukes (664770) · BATTER · CF · Team TOR
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 87
All-history rows before 20260618: 87
System season_avg: 0.3150
Data season_avg (2026 season-to-date): 0.3243
Diff (system - data): -0.0093
System opponent_avg: 0.4000

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1790.0000.000Hitting_2B0.2530.000-0.2530.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.1794.0003.000Hitting_AB3.4021.0000.5983.000
predicted_AVG0.2760.0000.333Hitting_AVG0.3241.000-0.324-1.000
predicted_BB0.1540.0000.000Hitting_BB0.1030.000-0.1030.000
predicted_CS-0.0000.000BaseRunning_CS0.0570.000-0.0570.000
predicted_H0.8800.0001.000Hitting_H1.1031.000-1.103-1.000
predicted_HR0.0600.0000.000Hitting_HR0.0110.000-0.0110.000
predicted_OBP0.3400.0000.333Hitting_OBP0.3691.000-0.369-1.000
predicted_R0.3330.0000.000Hitting_R0.3330.000-0.3330.000
predicted_RBI0.3500.0000.000Hitting_RBI0.4370.000-0.4370.000
predicted_SLG0.3870.0000.333Hitting_SLG0.4091.000-0.409-1.000
predicted_SO0.5641.0001.000Hitting_SO0.5750.0000.4251.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics3
Deboosted Metrics7
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_AB: 3.1790 -> 4.0000 (boost 0.8210, better)
Biggest Deboostpredicted_H: 0.8800 -> 0.0000 (deboost -0.8800, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend55041predicted_AB: 3.1790 -> 3.2766 (boost 0.0976, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_OBP: 0.3452 -> 0.3261 (deboost -0.0191, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling61506predicted_SO: 0.6286 -> 1.0000 (boost 0.3714, worse)predicted_RBI: 0.3448 -> 0.0000 (deboost -0.3448, worse)AB rounded to 3 (raw=3.28), rates preserved: AVG=0.291 HR/AB=0.015
5consistency_constraints10101-predicted_R: 0.3339 -> 0.0000 (deboost -0.3339, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2912 -> 0.3330 (boost 0.0418, better)predicted_SLG: 0.3912 -> 0.3330 (deboost -0.0582, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21111predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.3912 (boost 0.0582, better)predicted_AVG: 0.3330 -> 0.2912 (deboost -0.0418, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "664770",
  "player_name": "Nathan Lukes",
  "position": "CF",
  "team": "TOR",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.179,
        "predicted_3B": 0.0,
        "predicted_AB": 3.179,
        "predicted_AVG": 0.276,
        "predicted_BB": 0.154,
        "predicted_H": 0.88,
        "predicted_HR": 0.06,
        "predicted_OBP": 0.34,
        "predicted_R": 0.333,
        "predicted_RBI": 0.35,
        "predicted_SLG": 0.387,
        "predicted_SO": 0.564
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1766,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.2766,
        "predicted_AVG": 0.2879,
        "predicted_BB": 0.1691,
        "predicted_H": 0.9467,
        "predicted_HBP": 0.06,
        "predicted_HR": 0.0501,
        "predicted_OBP": 0.3452,
        "predicted_R": 0.3278,
        "predicted_RBI": 0.3385,
        "predicted_SLG": 0.3875,
        "predicted_SO": 0.6319
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.179,
          "after": 0.1766,
          "delta": -0.0024,
          "percent_delta": -0.0134,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.179,
          "after": 3.2766,
          "delta": 0.0976,
          "percent_delta": 0.0307,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.276,
          "after": 0.2879,
          "delta": 0.0119,
          "percent_delta": 0.0431,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.154,
          "after": 0.1691,
          "delta": 0.0151,
          "percent_delta": 0.0981,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.88,
          "after": 0.9467,
          "delta": 0.0667,
          "percent_delta": 0.0758,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.06,
          "after": 0.0501,
          "delta": -0.0099,
          "percent_delta": -0.165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.34,
          "after": 0.3452,
          "delta": 0.0052,
          "percent_delta": 0.0153,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.333,
          "after": 0.3278,
          "delta": -0.0052,
          "percent_delta": -0.0156,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.35,
          "after": 0.3385,
          "delta": -0.0115,
          "percent_delta": -0.0329,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.387,
          "after": 0.3875,
          "delta": 0.0005,
          "percent_delta": 0.0013,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.564,
          "after": 0.6319,
          "delta": 0.0679,
          "percent_delta": 0.1204,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 5,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.179,
          "after": 3.2766,
          "delta": 0.0976,
          "percent_delta": 0.0307,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 39
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1766,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.2766,
        "predicted_AVG": 0.2912,
        "predicted_BB": 0.17,
        "predicted_H": 0.9541,
        "predicted_HBP": 0.06,
        "predicted_HR": 0.0499,
        "predicted_OBP": 0.3261,
        "predicted_R": 0.3339,
        "predicted_RBI": 0.3448,
        "predicted_SLG": 0.3912,
        "predicted_SO": 0.6286
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1766,
          "after": 0.1766,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.2766,
          "after": 3.2766,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2879,
          "after": 0.2912,
          "delta": 0.0033,
          "percent_delta": 0.0115,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.1691,
          "after": 0.17,
          "delta": 0.0009,
          "percent_delta": 0.0053,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9467,
          "after": 0.9541,
          "delta": 0.0074,
          "percent_delta": 0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.06,
          "after": 0.06,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0501,
          "after": 0.0499,
          "delta": -0.0002,
          "percent_delta": -0.004,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3452,
          "after": 0.3261,
          "delta": -0.0191,
          "percent_delta": -0.0553,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3278,
          "after": 0.3339,
          "delta": 0.0061,
          "percent_delta": 0.0186,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3385,
          "after": 0.3448,
          "delta": 0.0063,
          "percent_delta": 0.0186,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3875,
          "after": 0.3912,
          "delta": 0.0037,
          "percent_delta": 0.0095,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.6319,
          "after": 0.6286,
          "delta": -0.0033,
          "percent_delta": -0.0052,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3452,
          "after": 0.3261,
          "delta": -0.0191,
          "percent_delta": -0.0553,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.28), rates preserved: AVG=0.291 HR/AB=0.015",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1766,
          "after": 0.0,
          "delta": -0.1766,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.2766,
          "after": 3.0,
          "delta": -0.2766,
          "percent_delta": -0.0844,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.17,
          "after": 0.0,
          "delta": -0.17,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.9541,
          "after": 1.0,
          "delta": 0.0459,
          "percent_delta": 0.0481,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.06,
          "after": 0.0,
          "delta": -0.06,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0499,
          "after": 0.0,
          "delta": -0.0499,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3448,
          "after": 0.0,
          "delta": -0.3448,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.6286,
          "after": 1.0,
          "delta": 0.3714,
          "percent_delta": 0.5908,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 1,
        "deboosted_metrics": 5,
        "better_metrics": 0,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.6286,
          "after": 1.0,
          "delta": 0.3714,
          "percent_delta": 0.5908,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.3448,
          "after": 0.0,
          "delta": -0.3448,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3339,
          "after": 0.0,
          "delta": -0.3339,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3339,
          "after": 0.0,
          "delta": -0.3339,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2912,
          "after": 0.333,
          "delta": 0.0418,
          "percent_delta": 0.1435,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3261,
          "after": 0.333,
          "delta": 0.0069,
          "percent_delta": 0.0212,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3912,
          "after": 0.333,
          "delta": -0.0582,
          "percent_delta": -0.1488,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2912,
          "after": 0.333,
          "delta": 0.0418,
          "percent_delta": 0.1435,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3912,
          "after": 0.333,
          "delta": -0.0582,
          "percent_delta": -0.1488,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2912,
        "predicted_BB": 0.0,
        "predicted_CF": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3261,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3912,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2912,
          "delta": -0.0418,
          "percent_delta": -0.1256,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3261,
          "delta": -0.0069,
          "percent_delta": -0.0206,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3912,
          "delta": 0.0582,
          "percent_delta": 0.1748,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3912,
          "delta": 0.0582,
          "percent_delta": 0.1748,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2912,
          "delta": -0.0418,
          "percent_delta": -0.1256,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.179,
        "after": 0.0,
        "delta": -0.179,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.179,
        "after": 4.0,
        "delta": 0.821,
        "percent_delta": 0.2583,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.276,
        "after": 0.2912,
        "delta": 0.0152,
        "percent_delta": 0.0551,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.154,
        "after": 0.0,
        "delta": -0.154,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.88,
        "after": 0.0,
        "delta": -0.88,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.06,
        "after": 0.0,
        "delta": -0.06,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.34,
        "after": 0.3261,
        "delta": -0.0139,
        "percent_delta": -0.0409,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.333,
        "after": 0.0,
        "delta": -0.333,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.35,
        "after": 0.0,
        "delta": -0.35,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.387,
        "after": 0.3912,
        "delta": 0.0042,
        "percent_delta": 0.0109,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.564,
        "after": 1.0,
        "delta": 0.436,
        "percent_delta": 0.773,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 3,
      "deboosted_metrics": 7,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.179,
        "after": 4.0,
        "delta": 0.821,
        "percent_delta": 0.2583,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.88,
        "after": 0.0,
        "delta": -0.88,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.179-
predicted_3B0.000-
predicted_AB3.179-
predicted_AVG0.276-
predicted_BB0.154-
predicted_H0.880-
predicted_HR0.060-
predicted_OBP0.340-
predicted_R0.333-
predicted_RBI0.350-
predicted_SLG0.387-
predicted_SO0.564-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.177-0.002
predicted_3B0.0010.001
predicted_AB3.2770.098
predicted_AVG0.2880.012
predicted_BB0.1690.015
predicted_H0.9470.067
predicted_HBP0.060-
predicted_HR0.050-0.010
predicted_OBP0.3450.005
predicted_R0.328-0.005
predicted_RBI0.339-0.011
predicted_SLG0.3880.001
predicted_SO0.6320.068
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1770.000
predicted_3B0.0010.000
predicted_AB3.2770.000
predicted_AVG0.2910.003
predicted_BB0.1700.001
predicted_H0.9540.007
predicted_HBP0.0600.000
predicted_HR0.050-0.000
predicted_OBP0.326-0.019
predicted_R0.3340.006
predicted_RBI0.3450.006
predicted_SLG0.3910.004
predicted_SO0.629-0.003
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.28), rates preserved: AVG=0.291 HR/AB=0.015

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.177
predicted_3B0.000-0.001
predicted_AB3.000-0.277
predicted_AVG0.3330.042
predicted_BB0.000-0.170
predicted_H1.0000.046
predicted_HR0.000-0.050
predicted_OBP0.3330.007
predicted_R0.000-0.334
predicted_RBI0.000-0.345
predicted_SLG0.333-0.058
predicted_SO1.0000.371
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 39
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0006.0001.0000.0000.0001.0001.0001.0005.0000.33330.36840.38890.33330.00000.05560.05560.2778
last_100.2010-35.00011.0001.0000.0000.0002.0002.0002.0009.0000.31430.35140.34290.31430.00000.05710.05710.2571
season0.6039-124.00039.0007.0000.0001.00013.00013.0006.00022.0000.31450.36300.39520.31450.00810.10480.04840.1774
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1730
predicted_3B0.0020
predicted_AB3.4250
predicted_AVG0.3059
predicted_BB0.1920
predicted_H1.0480
predicted_HBP0.0600
predicted_HR0.0350
predicted_OBP0.3530
predicted_R0.3200
predicted_RBI0.3210
predicted_SLG0.3883
predicted_SO0.7350
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.17900.17300.1766model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB3.17903.42503.2766model_form_blend
predicted_AVG0.27600.30590.2879model_form_blend
predicted_BB0.15400.19200.1691model_form_blend
predicted_H0.88001.04800.9467model_form_blend
predicted_HBP-0.06000.0600form_only
predicted_HR0.06000.03500.0501model_form_blend
predicted_OBP0.34000.35300.3452model_form_blend
predicted_R0.33300.32000.3278model_form_blend
predicted_RBI0.35000.32100.3385model_form_blend
predicted_SLG0.38700.38830.3875model_form_blend
predicted_SO0.56400.73500.6319model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date87
Season rows before report date87
Report year2026
Profile rows used39
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.315

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB1
Hitting_AVG1.0
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder6
Hitting_substitutionOrder1
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedRF
gameID20260617_TOR@BOS
game_typeshort
mlbID664770
playerID664770
playerNameNathan Lukes
posRF
startedFalse
startingPositionRF
teamTOR
teamID29
game_date2026-06-17
sl_k_percent16.2
sl_bb_percent4.4
sl_woba0.339
sl_xwoba0.304
sl_xba0.279
sl_xslg0.349
sl_sweet_spot_percent32.7
sl_barrel_batted_rate1.0
sl_hard_hit_percent28.8
sl_exit_velocity_avg85.9
sl_launch_angle_avg11.3
sl_whiff_percent18.5
sl_swing_percent51.1
Ernie Clement (676391) · BATTER · 2B · Team TOR
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 238
All-history rows before 20260618: 238
System season_avg: 0.2950
Data season_avg (2026 season-to-date): 0.3016
Diff (system - data): -0.0066
System opponent_avg: 0.0500

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2740.0000.000Hitting_2B0.3240.000-0.3240.000
predicted_3B0.0140.0000.000Hitting_3B0.0040.000-0.0040.000
predicted_AB4.1104.0004.000Hitting_AB4.0134.000-0.0130.000
predicted_AVG0.2400.0000.250Hitting_AVG0.3020.000-0.3020.000
predicted_BB0.1230.0000.000Hitting_BB0.1340.000-0.1340.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.9900.0001.000Hitting_H1.2100.000-1.2100.000
predicted_HR0.1000.0000.000Hitting_HR0.1010.000-0.1010.000
predicted_OBP0.2880.0000.250Hitting_OBP0.3230.000-0.3230.000
predicted_R0.4660.0000.000Hitting_R0.4410.000-0.4410.000
predicted_RBI0.4200.0000.000Hitting_RBI0.4030.000-0.4030.000
predicted_SB-0.0000.000BaseRunning_SB0.0340.000-0.0340.000
predicted_SLG0.3920.0000.250Hitting_SLG0.4600.000-0.4600.000
predicted_SO0.4382.0000.000Hitting_SO0.3662.0001.6340.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics2
Deboosted Metrics8
Better Metrics1
Worse Metrics9
Biggest Boostpredicted_SO: 0.4380 -> 2.0000 (boost 1.5620, worse)
Biggest Deboostpredicted_H: 0.9900 -> 0.0000 (deboost -0.9900, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend33021predicted_SO: 0.4380 -> 0.5154 (boost 0.0774, worse)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot10101-predicted_OBP: 0.2844 -> 0.2728 (deboost -0.0116, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling60615-predicted_SO: 0.5127 -> 0.0000 (deboost -0.5127, better)AB rounded to 4 (raw=4.11), rates preserved: AVG=0.249 HR/AB=0.024
5consistency_constraints10101-predicted_R: 0.4974 -> 0.0000 (deboost -0.4974, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context20202-predicted_SLG: 0.3966 -> 0.2500 (deboost -0.1466, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21102predicted_SO: 0.0000 -> 2.0000 (boost 2.0000, worse)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final22020predicted_SLG: 0.2500 -> 0.3966 (boost 0.1466, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "676391",
  "player_name": "Ernie Clement",
  "position": "2B",
  "team": "TOR",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.274,
        "predicted_3B": 0.014,
        "predicted_AB": 4.11,
        "predicted_AVG": 0.24,
        "predicted_BB": 0.123,
        "predicted_H": 0.99,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.288,
        "predicted_R": 0.466,
        "predicted_RBI": 0.42,
        "predicted_SLG": 0.392,
        "predicted_SO": 0.438
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2524,
        "predicted_3B": 0.0195,
        "predicted_AB": 4.0745,
        "predicted_AVG": 0.2488,
        "predicted_BB": 0.12,
        "predicted_H": 1.0158,
        "predicted_HBP": 0.003,
        "predicted_HR": 0.1008,
        "predicted_OBP": 0.2844,
        "predicted_R": 0.4884,
        "predicted_RBI": 0.4132,
        "predicted_SLG": 0.3979,
        "predicted_SO": 0.5154
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.274,
          "after": 0.2524,
          "delta": -0.0216,
          "percent_delta": -0.0788,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.014,
          "after": 0.0195,
          "delta": 0.0055,
          "percent_delta": 0.3929,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.11,
          "after": 4.0745,
          "delta": -0.0355,
          "percent_delta": -0.0086,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.24,
          "after": 0.2488,
          "delta": 0.0088,
          "percent_delta": 0.0367,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.123,
          "after": 0.12,
          "delta": -0.003,
          "percent_delta": -0.0244,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.99,
          "after": 1.0158,
          "delta": 0.0258,
          "percent_delta": 0.0261,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.1008,
          "delta": 0.0008,
          "percent_delta": 0.008,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.288,
          "after": 0.2844,
          "delta": -0.0036,
          "percent_delta": -0.0125,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.466,
          "after": 0.4884,
          "delta": 0.0224,
          "percent_delta": 0.0481,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.42,
          "after": 0.4132,
          "delta": -0.0068,
          "percent_delta": -0.0162,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.392,
          "after": 0.3979,
          "delta": 0.0059,
          "percent_delta": 0.0151,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.438,
          "after": 0.5154,
          "delta": 0.0774,
          "percent_delta": 0.1767,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.438,
          "after": 0.5154,
          "delta": 0.0774,
          "percent_delta": 0.1767,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 73
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2524,
        "predicted_3B": 0.0195,
        "predicted_AB": 4.0745,
        "predicted_AVG": 0.2513,
        "predicted_BB": 0.1206,
        "predicted_H": 1.0237,
        "predicted_HBP": 0.003,
        "predicted_HR": 0.1003,
        "predicted_OBP": 0.2728,
        "predicted_R": 0.4974,
        "predicted_RBI": 0.4208,
        "predicted_SLG": 0.3966,
        "predicted_SO": 0.5127
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2524,
          "after": 0.2524,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0195,
          "after": 0.0195,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0745,
          "after": 4.0745,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2488,
          "after": 0.2513,
          "delta": 0.0025,
          "percent_delta": 0.01,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.12,
          "after": 0.1206,
          "delta": 0.0006,
          "percent_delta": 0.005,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0158,
          "after": 1.0237,
          "delta": 0.0079,
          "percent_delta": 0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.003,
          "after": 0.003,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1008,
          "after": 0.1003,
          "delta": -0.0005,
          "percent_delta": -0.005,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2844,
          "after": 0.2728,
          "delta": -0.0116,
          "percent_delta": -0.0408,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4884,
          "after": 0.4974,
          "delta": 0.009,
          "percent_delta": 0.0184,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4132,
          "after": 0.4208,
          "delta": 0.0076,
          "percent_delta": 0.0184,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3979,
          "after": 0.3966,
          "delta": -0.0013,
          "percent_delta": -0.0033,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.5154,
          "after": 0.5127,
          "delta": -0.0027,
          "percent_delta": -0.0052,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.2844,
          "after": 0.2728,
          "delta": -0.0116,
          "percent_delta": -0.0408,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.11), rates preserved: AVG=0.249 HR/AB=0.024",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2524,
          "after": 0.0,
          "delta": -0.2524,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0195,
          "after": 0.0,
          "delta": -0.0195,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0745,
          "after": 4.0,
          "delta": -0.0745,
          "percent_delta": -0.0183,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1206,
          "after": 0.0,
          "delta": -0.1206,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0237,
          "after": 1.0,
          "delta": -0.0237,
          "percent_delta": -0.0232,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.003,
          "after": 0.0,
          "delta": -0.003,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1003,
          "after": 0.0,
          "delta": -0.1003,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4208,
          "after": 0.0,
          "delta": -0.4208,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5127,
          "after": 0.0,
          "delta": -0.5127,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 0,
        "deboosted_metrics": 6,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 0.5127,
          "after": 0.0,
          "delta": -0.5127,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4974,
          "after": 0.0,
          "delta": -0.4974,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4974,
          "after": 0.0,
          "delta": -0.4974,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2513,
          "after": 0.25,
          "delta": -0.0013,
          "percent_delta": -0.0052,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2728,
          "after": 0.25,
          "delta": -0.0228,
          "percent_delta": -0.0836,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3966,
          "after": 0.25,
          "delta": -0.1466,
          "percent_delta": -0.3696,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3966,
          "after": 0.25,
          "delta": -0.1466,
          "percent_delta": -0.3696,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2513,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2728,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3966,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2513,
          "delta": 0.0013,
          "percent_delta": 0.005,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2728,
          "delta": 0.0228,
          "percent_delta": 0.0911,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3966,
          "delta": 0.1466,
          "percent_delta": 0.5865,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3966,
          "delta": 0.1466,
          "percent_delta": 0.5865,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.274,
        "after": 0.0,
        "delta": -0.274,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.014,
        "after": 0.0,
        "delta": -0.014,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.11,
        "after": 4.0,
        "delta": -0.11,
        "percent_delta": -0.0268,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.24,
        "after": 0.2513,
        "delta": 0.0113,
        "percent_delta": 0.0471,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.123,
        "after": 0.0,
        "delta": -0.123,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.99,
        "after": 0.0,
        "delta": -0.99,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.288,
        "after": 0.2728,
        "delta": -0.0152,
        "percent_delta": -0.0528,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.466,
        "after": 0.0,
        "delta": -0.466,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.42,
        "after": 0.0,
        "delta": -0.42,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.392,
        "after": 0.3966,
        "delta": 0.0046,
        "percent_delta": 0.0117,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.438,
        "after": 2.0,
        "delta": 1.562,
        "percent_delta": 3.5662,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 2,
      "deboosted_metrics": 8,
      "better_metrics": 1,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.438,
        "after": 2.0,
        "delta": 1.562,
        "percent_delta": 3.5662,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.99,
        "after": 0.0,
        "delta": -0.99,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.274-
predicted_3B0.014-
predicted_AB4.110-
predicted_AVG0.240-
predicted_BB0.123-
predicted_H0.990-
predicted_HR0.100-
predicted_OBP0.288-
predicted_R0.466-
predicted_RBI0.420-
predicted_SLG0.392-
predicted_SO0.438-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.252-0.022
predicted_3B0.0190.005
predicted_AB4.074-0.036
predicted_AVG0.2490.009
predicted_BB0.120-0.003
predicted_H1.0160.026
predicted_HBP0.003-
predicted_HR0.1010.001
predicted_OBP0.284-0.004
predicted_R0.4880.022
predicted_RBI0.413-0.007
predicted_SLG0.3980.006
predicted_SO0.5150.077
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2520.000
predicted_3B0.0190.000
predicted_AB4.0740.000
predicted_AVG0.2510.003
predicted_BB0.1210.001
predicted_H1.0240.008
predicted_HBP0.0030.000
predicted_HR0.100-0.001
predicted_OBP0.273-0.012
predicted_R0.4970.009
predicted_RBI0.4210.008
predicted_SLG0.397-0.001
predicted_SO0.513-0.003
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.11), rates preserved: AVG=0.249 HR/AB=0.024

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO0.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO0.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.252
predicted_3B0.000-0.019
predicted_AB4.000-0.074
predicted_AVG0.250-0.001
predicted_BB0.000-0.121
predicted_H1.000-0.024
predicted_HR0.000-0.100
predicted_OBP0.250-0.023
predicted_R0.000-0.497
predicted_RBI0.000-0.421
predicted_SLG0.250-0.147
predicted_SO0.000-0.513
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO2.0002.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 73
Reference playing time: 4.110
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-22.0004.0001.0000.0000.0001.0002.0000.0004.0000.18180.18180.22730.18180.00000.04540.00000.1818
last_100.2010-41.00010.0001.0001.0002.0006.0008.0001.0009.0000.24390.25580.46340.24390.04880.14630.02440.2195
season0.6073-285.00084.00020.0001.0007.00028.00034.0009.00032.0000.29470.31420.44560.29470.02460.09830.03160.1123
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2230
predicted_3B0.0270
predicted_AB4.0260
predicted_AVG0.2609
predicted_BB0.1160
predicted_H1.0510
predicted_HBP0.0030
predicted_HR0.1020
predicted_OBP0.2795
predicted_R0.5190
predicted_RBI0.4040
predicted_SLG0.4059
predicted_SO0.6210
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.27400.22300.2524model_form_blend
predicted_3B0.01400.02700.0195model_form_blend
predicted_AB4.11004.02604.0745model_form_blend
predicted_AVG0.24000.26090.2488model_form_blend
predicted_BB0.12300.11600.1200model_form_blend
predicted_H0.99001.05101.0158model_form_blend
predicted_HBP-0.00300.0030form_only
predicted_HR0.10000.10200.1008model_form_blend
predicted_OBP0.28800.27950.2844model_form_blend
predicted_R0.46600.51900.4884model_form_blend
predicted_RBI0.42000.40400.4132model_form_blend
predicted_SLG0.39200.40590.3979model_form_blend
predicted_SO0.43800.62100.5154model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date238
Season rows before report date238
Report year2026
Profile rows used73
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO2
SF0
HBP0
season_avg0.295

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB0
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_TOR@BOS
game_typefull
mlbID676391
playerID676391
playerNameErnie Clement
pos2B
startedTrue
startingPosition2B
teamTOR
teamID29
game_date2026-06-17
sl_k_percent10.8
sl_bb_percent3.0
sl_woba0.33
sl_xwoba0.267
sl_xba0.25
sl_xslg0.341
sl_sweet_spot_percent32.5
sl_barrel_batted_rate2.8
sl_hard_hit_percent25.1
sl_exit_velocity_avg85.4
sl_launch_angle_avg16.1
sl_whiff_percent16.2
sl_swing_percent58.4
Kazuma Okamoto (672960) · BATTER · 3B · Team TOR
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 241
All-history rows before 20260618: 241
System season_avg: 0.2300
Data season_avg (2026 season-to-date): 0.2235
Diff (system - data): 0.0065
System opponent_avg: 0.1180

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1270.0000.000Hitting_2B0.1160.000-0.1160.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB3.6763.0004.000Hitting_AB3.7144.000-0.714-1.000
predicted_AVG0.2340.3330.250Hitting_AVG0.2230.0000.1100.333
predicted_BB0.4080.0000.000Hitting_BB0.4400.000-0.4400.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.8301.0001.000Hitting_H0.8300.0000.1701.000
predicted_HR0.2000.0000.000Hitting_HR0.2160.000-0.2160.000
predicted_OBP0.3150.3330.250Hitting_OBP0.3120.0000.0210.333
predicted_R0.4930.0001.000Hitting_R0.5060.000-0.5060.000
predicted_RBI0.5800.0001.000Hitting_RBI0.5850.000-0.5850.000
predicted_SLG0.4430.3330.250Hitting_SLG0.4290.000-0.0960.333
predicted_SO1.3520.0001.000Hitting_SO1.3282.000-1.328-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics8
Boosted Metrics1
Deboosted Metrics7
Better Metrics2
Worse Metrics6
Biggest Boostpredicted_H: 0.8300 -> 1.0000 (boost 0.1700, better)
Biggest Deboostpredicted_SO: 1.3520 -> 0.0000 (deboost -1.3520, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend11010predicted_SLG: 0.4430 -> 0.4570 (boost 0.0140, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_SLG: 0.4570 -> 0.4464 (deboost -0.0106, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling73443predicted_RBI: 0.6191 -> 1.0000 (boost 0.3809, better)predicted_BB: 0.4216 -> 0.0000 (deboost -0.4216, worse)AB rounded to 4 (raw=3.68), rates preserved: AVG=0.229 HR/AB=0.059
5consistency_constraints11010predicted_R: 0.5043 -> 1.0000 (boost 0.4957, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2304 -> 0.2500 (boost 0.0196, better)predicted_SLG: 0.4464 -> 0.2500 (deboost -0.1964, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference40413-predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.2500 -> 0.4464 (boost 0.1964, better)predicted_AVG: 0.2500 -> 0.2304 (deboost -0.0196, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "672960",
  "player_name": "Kazuma Okamoto",
  "position": "3B",
  "team": "TOR",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.127,
        "predicted_3B": 0.0,
        "predicted_AB": 3.676,
        "predicted_AVG": 0.234,
        "predicted_BB": 0.408,
        "predicted_H": 0.83,
        "predicted_HR": 0.2,
        "predicted_OBP": 0.315,
        "predicted_R": 0.493,
        "predicted_RBI": 0.58,
        "predicted_SLG": 0.443,
        "predicted_SO": 1.352
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.141,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.6485,
        "predicted_AVG": 0.2334,
        "predicted_BB": 0.4194,
        "predicted_H": 0.8342,
        "predicted_HBP": 0.026,
        "predicted_HR": 0.2165,
        "predicted_OBP": 0.3158,
        "predicted_R": 0.4951,
        "predicted_RBI": 0.6079,
        "predicted_SLG": 0.457,
        "predicted_SO": 1.3262
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.127,
          "after": 0.141,
          "delta": 0.014,
          "percent_delta": 0.1102,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0004,
          "delta": 0.0004,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.676,
          "after": 3.6485,
          "delta": -0.0275,
          "percent_delta": -0.0075,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.234,
          "after": 0.2334,
          "delta": -0.0006,
          "percent_delta": -0.0026,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.408,
          "after": 0.4194,
          "delta": 0.0114,
          "percent_delta": 0.0279,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.83,
          "after": 0.8342,
          "delta": 0.0042,
          "percent_delta": 0.0051,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2,
          "after": 0.2165,
          "delta": 0.0165,
          "percent_delta": 0.0825,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.315,
          "after": 0.3158,
          "delta": 0.0008,
          "percent_delta": 0.0025,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.493,
          "after": 0.4951,
          "delta": 0.0021,
          "percent_delta": 0.0043,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.58,
          "after": 0.6079,
          "delta": 0.0279,
          "percent_delta": 0.0481,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.443,
          "after": 0.457,
          "delta": 0.014,
          "percent_delta": 0.0316,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.352,
          "after": 1.3262,
          "delta": -0.0258,
          "percent_delta": -0.0191,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.443,
          "after": 0.457,
          "delta": 0.014,
          "percent_delta": 0.0316,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 71
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.141,
        "predicted_3B": 0.0004,
        "predicted_AB": 3.6485,
        "predicted_AVG": 0.2304,
        "predicted_BB": 0.4216,
        "predicted_H": 0.8407,
        "predicted_HBP": 0.026,
        "predicted_HR": 0.2154,
        "predicted_OBP": 0.3101,
        "predicted_R": 0.5043,
        "predicted_RBI": 0.6191,
        "predicted_SLG": 0.4464,
        "predicted_SO": 1.3193
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.141,
          "after": 0.141,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6485,
          "after": 3.6485,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2334,
          "after": 0.2304,
          "delta": -0.003,
          "percent_delta": -0.0129,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.4194,
          "after": 0.4216,
          "delta": 0.0022,
          "percent_delta": 0.0052,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.8342,
          "after": 0.8407,
          "delta": 0.0065,
          "percent_delta": 0.0078,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.026,
          "after": 0.026,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2165,
          "after": 0.2154,
          "delta": -0.0011,
          "percent_delta": -0.0051,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3158,
          "after": 0.3101,
          "delta": -0.0057,
          "percent_delta": -0.018,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4951,
          "after": 0.5043,
          "delta": 0.0092,
          "percent_delta": 0.0186,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6079,
          "after": 0.6191,
          "delta": 0.0112,
          "percent_delta": 0.0184,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.457,
          "after": 0.4464,
          "delta": -0.0106,
          "percent_delta": -0.0232,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.3262,
          "after": 1.3193,
          "delta": -0.0069,
          "percent_delta": -0.0052,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.457,
          "after": 0.4464,
          "delta": -0.0106,
          "percent_delta": -0.0232,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.68), rates preserved: AVG=0.229 HR/AB=0.059",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.141,
          "after": 0.0,
          "delta": -0.141,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0004,
          "after": 0.0,
          "delta": -0.0004,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.6485,
          "after": 4.0,
          "delta": 0.3515,
          "percent_delta": 0.0963,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.4216,
          "after": 0.0,
          "delta": -0.4216,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8407,
          "after": 1.0,
          "delta": 0.1593,
          "percent_delta": 0.1895,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.026,
          "after": 0.0,
          "delta": -0.026,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2154,
          "after": 0.0,
          "delta": -0.2154,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6191,
          "after": 1.0,
          "delta": 0.3809,
          "percent_delta": 0.6152,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.3193,
          "after": 1.0,
          "delta": -0.3193,
          "percent_delta": -0.242,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 3,
        "deboosted_metrics": 4,
        "better_metrics": 4,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.6191,
          "after": 1.0,
          "delta": 0.3809,
          "percent_delta": 0.6152,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.4216,
          "after": 0.0,
          "delta": -0.4216,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.5043,
          "after": 1.0,
          "delta": 0.4957,
          "percent_delta": 0.9829,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.5043,
          "after": 1.0,
          "delta": 0.4957,
          "percent_delta": 0.9829,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2304,
          "after": 0.25,
          "delta": 0.0196,
          "percent_delta": 0.0851,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3101,
          "after": 0.25,
          "delta": -0.0601,
          "percent_delta": -0.1938,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4464,
          "after": 0.25,
          "delta": -0.1964,
          "percent_delta": -0.44,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2304,
          "after": 0.25,
          "delta": 0.0196,
          "percent_delta": 0.0851,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4464,
          "after": 0.25,
          "delta": -0.1964,
          "percent_delta": -0.44,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 0,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2304,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3101,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4464,
        "predicted_SO": 0.0,
        "predicted_TB": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2304,
          "delta": -0.0196,
          "percent_delta": -0.0783,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3101,
          "delta": 0.0601,
          "percent_delta": 0.2406,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4464,
          "delta": 0.1964,
          "percent_delta": 0.7857,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4464,
          "delta": 0.1964,
          "percent_delta": 0.7857,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2304,
          "delta": -0.0196,
          "percent_delta": -0.0783,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.127,
        "after": 0.0,
        "delta": -0.127,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.676,
        "after": 3.0,
        "delta": -0.676,
        "percent_delta": -0.1839,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.234,
        "after": 0.2304,
        "delta": -0.0036,
        "percent_delta": -0.0154,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.408,
        "after": 0.0,
        "delta": -0.408,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.83,
        "after": 1.0,
        "delta": 0.17,
        "percent_delta": 0.2048,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.2,
        "after": 0.0,
        "delta": -0.2,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.315,
        "after": 0.3101,
        "delta": -0.0049,
        "percent_delta": -0.0156,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.493,
        "after": 0.0,
        "delta": -0.493,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.58,
        "after": 0.0,
        "delta": -0.58,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.443,
        "after": 0.4464,
        "delta": 0.0034,
        "percent_delta": 0.0077,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.352,
        "after": 0.0,
        "delta": -1.352,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 8,
      "boosted_metrics": 1,
      "deboosted_metrics": 7,
      "better_metrics": 2,
      "worse_metrics": 6,
      "biggest_boost": {
        "metric": "predicted_H",
        "before": 0.83,
        "after": 1.0,
        "delta": 0.17,
        "percent_delta": 0.2048,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 1.352,
        "after": 0.0,
        "delta": -1.352,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.127-
predicted_3B0.000-
predicted_AB3.676-
predicted_AVG0.234-
predicted_BB0.408-
predicted_H0.830-
predicted_HR0.200-
predicted_OBP0.315-
predicted_R0.493-
predicted_RBI0.580-
predicted_SLG0.443-
predicted_SO1.352-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1410.014
predicted_3B0.0000.000
predicted_AB3.648-0.028
predicted_AVG0.233-0.001
predicted_BB0.4190.011
predicted_H0.8340.004
predicted_HBP0.026-
predicted_HR0.2160.016
predicted_OBP0.3160.001
predicted_R0.4950.002
predicted_RBI0.6080.028
predicted_SLG0.4570.014
predicted_SO1.326-0.026
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1410.000
predicted_3B0.0000.000
predicted_AB3.6480.000
predicted_AVG0.230-0.003
predicted_BB0.4220.002
predicted_H0.8410.006
predicted_HBP0.0260.000
predicted_HR0.215-0.001
predicted_OBP0.310-0.006
predicted_R0.5040.009
predicted_RBI0.6190.011
predicted_SLG0.446-0.011
predicted_SO1.319-0.007
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.68), rates preserved: AVG=0.229 HR/AB=0.059

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.141
predicted_3B0.000-0.000
predicted_AB4.0000.352
predicted_AVG0.2500.020
predicted_BB0.000-0.422
predicted_H1.0000.159
predicted_HR0.000-0.215
predicted_OBP0.250-0.060
predicted_R1.0000.496
predicted_RBI1.0000.381
predicted_SLG0.250-0.196
predicted_SO1.000-0.319
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA3.000-
R0.000-1.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 71
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0004.0001.0000.0002.0004.0003.0003.0006.0000.23530.35000.64710.23530.11770.23530.17650.3529
last_100.2010-35.0008.0002.0000.0002.0007.0004.0004.00014.0000.22860.30000.45710.22860.05710.20000.11430.4000
season0.6071-261.00060.0009.0000.00015.00042.00035.00029.00096.0000.22990.31190.43680.22990.05750.16090.11110.3678
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1600
predicted_3B0.0010
predicted_AB3.6110
predicted_AVG0.2325
predicted_BB0.4350
predicted_H0.8400
predicted_HBP0.0260
predicted_HR0.2390
predicted_OBP0.3168
predicted_R0.4980
predicted_RBI0.6460
predicted_SLG0.4762
predicted_SO1.2910
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.12700.16000.1410model_form_blend
predicted_3B0.00000.00100.0004model_form_blend
predicted_AB3.67603.61103.6485model_form_blend
predicted_AVG0.23400.23250.2334model_form_blend
predicted_BB0.40800.43500.4194model_form_blend
predicted_H0.83000.84000.8342model_form_blend
predicted_HBP-0.02600.0260form_only
predicted_HR0.20000.23900.2165model_form_blend
predicted_OBP0.31500.31680.3158model_form_blend
predicted_R0.49300.49800.4951model_form_blend
predicted_RBI0.58000.64600.6079model_form_blend
predicted_SLG0.44300.47620.4570model_form_blend
predicted_SO1.35201.29101.3262model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date241
Season rows before report date241
Report year2026
Profile rows used71
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA3
AB3
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.23

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB0
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260617_TOR@BOS
game_typefull
mlbID672960
playerID672960
playerNameKazuma Okamoto
pos3B
startedTrue
startingPosition3B
teamTOR
teamID29
game_date2026-06-17
sl_k_percent32.5
sl_bb_percent9.8
sl_woba0.329
sl_xwoba0.323
sl_xba0.219
sl_xslg0.433
sl_sweet_spot_percent34.1
sl_barrel_batted_rate14.4
sl_hard_hit_percent49.1
sl_exit_velocity_avg91.8
sl_launch_angle_avg17.2
sl_whiff_percent34.4
sl_swing_percent44.2
Brandon Valenzuela (678218) · BATTER · C · Team TOR
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 120
All-history rows before 20260618: 120
System season_avg: 0.2540
Data season_avg (2026 season-to-date): 0.2705
Diff (system - data): -0.0165
System opponent_avg: 0.2540
System season_avg diverges from 2026 season-to-date by -0.0165. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1140.0000.000Hitting_2B0.1000.000-0.1000.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.9553.0003.000Hitting_AB3.0503.000-0.0500.000
predicted_AVG0.2640.3330.333Hitting_AVG0.2700.3330.0630.000
predicted_BB0.3860.0000.000Hitting_BB0.4581.000-0.458-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.6801.0001.000Hitting_H0.8251.0000.1750.000
predicted_HR0.1401.0000.000Hitting_HR0.1670.0000.8331.000
predicted_OBP0.3260.3330.333Hitting_OBP0.3650.500-0.032-0.167
predicted_R0.3861.0000.000Hitting_R0.4670.0000.5331.000
predicted_RBI0.4501.0000.000Hitting_RBI0.4330.0000.5671.000
predicted_SLG0.4441.3330.333Hitting_SLG0.4670.3330.8661.000
predicted_SO0.7731.0001.000Hitting_SO0.8082.0000.192-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics5
Deboosted Metrics4
Better Metrics4
Worse Metrics5
Biggest Boostpredicted_HR: 0.1400 -> 1.0000 (boost 0.8600, better)
Biggest Deboostpredicted_BB: 0.3860 -> 0.0000 (deboost -0.3860, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend33030predicted_AB: 2.9550 -> 3.0492 (boost 0.0942, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_AVG: 0.2613 -> 0.2433 (deboost -0.0180, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62415predicted_H: 0.7418 -> 1.0000 (boost 0.2582, better)predicted_RBI: 0.5016 -> 0.0000 (deboost -0.5016, worse)AB rounded to 3 (raw=3.05), rates preserved: AVG=0.243 HR/AB=0.052
5consistency_constraints10101-predicted_R: 0.3895 -> 0.0000 (deboost -0.3895, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.2433 -> 0.3330 (boost 0.0897, better)predicted_SLG: 0.4376 -> 0.3330 (deboost -0.1046, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference33030predicted_HR: 0.0000 -> 1.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.4376 (boost 0.1046, better)predicted_AVG: 0.3330 -> 0.2433 (deboost -0.0897, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "678218",
  "player_name": "Brandon Valenzuela",
  "position": "C",
  "team": "TOR",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.114,
        "predicted_3B": 0.0,
        "predicted_AB": 2.955,
        "predicted_AVG": 0.264,
        "predicted_BB": 0.386,
        "predicted_H": 0.68,
        "predicted_HR": 0.14,
        "predicted_OBP": 0.326,
        "predicted_R": 0.386,
        "predicted_RBI": 0.45,
        "predicted_SLG": 0.444,
        "predicted_SO": 0.773
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1168,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.0492,
        "predicted_AVG": 0.2613,
        "predicted_BB": 0.3776,
        "predicted_H": 0.7361,
        "predicted_HBP": 0.005,
        "predicted_HR": 0.1588,
        "predicted_OBP": 0.3285,
        "predicted_R": 0.3824,
        "predicted_RBI": 0.4925,
        "predicted_SLG": 0.4553,
        "predicted_SO": 0.8039
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.114,
          "after": 0.1168,
          "delta": 0.0028,
          "percent_delta": 0.0246,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.955,
          "after": 3.0492,
          "delta": 0.0942,
          "percent_delta": 0.0319,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.264,
          "after": 0.2613,
          "delta": -0.0027,
          "percent_delta": -0.0102,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.386,
          "after": 0.3776,
          "delta": -0.0084,
          "percent_delta": -0.0218,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.68,
          "after": 0.7361,
          "delta": 0.0561,
          "percent_delta": 0.0825,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.14,
          "after": 0.1588,
          "delta": 0.0188,
          "percent_delta": 0.1343,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.326,
          "after": 0.3285,
          "delta": 0.0025,
          "percent_delta": 0.0077,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.386,
          "after": 0.3824,
          "delta": -0.0036,
          "percent_delta": -0.0093,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.45,
          "after": 0.4925,
          "delta": 0.0425,
          "percent_delta": 0.0944,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.444,
          "after": 0.4553,
          "delta": 0.0113,
          "percent_delta": 0.0255,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.773,
          "after": 0.8039,
          "delta": 0.0309,
          "percent_delta": 0.04,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.955,
          "after": 3.0492,
          "delta": 0.0942,
          "percent_delta": 0.0319,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 44
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1168,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.0492,
        "predicted_AVG": 0.2433,
        "predicted_BB": 0.3796,
        "predicted_H": 0.7418,
        "predicted_HBP": 0.005,
        "predicted_HR": 0.158,
        "predicted_OBP": 0.3271,
        "predicted_R": 0.3895,
        "predicted_RBI": 0.5016,
        "predicted_SLG": 0.4376,
        "predicted_SO": 0.7997
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1168,
          "after": 0.1168,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0492,
          "after": 3.0492,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2613,
          "after": 0.2433,
          "delta": -0.018,
          "percent_delta": -0.0689,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3776,
          "after": 0.3796,
          "delta": 0.002,
          "percent_delta": 0.0053,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7361,
          "after": 0.7418,
          "delta": 0.0057,
          "percent_delta": 0.0077,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.005,
          "after": 0.005,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1588,
          "after": 0.158,
          "delta": -0.0008,
          "percent_delta": -0.005,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3285,
          "after": 0.3271,
          "delta": -0.0014,
          "percent_delta": -0.0043,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3824,
          "after": 0.3895,
          "delta": 0.0071,
          "percent_delta": 0.0186,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4925,
          "after": 0.5016,
          "delta": 0.0091,
          "percent_delta": 0.0185,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4553,
          "after": 0.4376,
          "delta": -0.0177,
          "percent_delta": -0.0389,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8039,
          "after": 0.7997,
          "delta": -0.0042,
          "percent_delta": -0.0052,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2613,
          "after": 0.2433,
          "delta": -0.018,
          "percent_delta": -0.0689,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.05), rates preserved: AVG=0.243 HR/AB=0.052",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1168,
          "after": 0.0,
          "delta": -0.1168,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0492,
          "after": 3.0,
          "delta": -0.0492,
          "percent_delta": -0.0161,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3796,
          "after": 0.0,
          "delta": -0.3796,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7418,
          "after": 1.0,
          "delta": 0.2582,
          "percent_delta": 0.3481,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.005,
          "after": 0.0,
          "delta": -0.005,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.158,
          "after": 0.0,
          "delta": -0.158,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5016,
          "after": 0.0,
          "delta": -0.5016,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7997,
          "after": 1.0,
          "delta": 0.2003,
          "percent_delta": 0.2505,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.7418,
          "after": 1.0,
          "delta": 0.2582,
          "percent_delta": 0.3481,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.5016,
          "after": 0.0,
          "delta": -0.5016,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3895,
          "after": 0.0,
          "delta": -0.3895,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3895,
          "after": 0.0,
          "delta": -0.3895,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2433,
          "after": 0.333,
          "delta": 0.0897,
          "percent_delta": 0.3687,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3271,
          "after": 0.333,
          "delta": 0.0059,
          "percent_delta": 0.018,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4376,
          "after": 0.333,
          "delta": -0.1046,
          "percent_delta": -0.239,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2433,
          "after": 0.333,
          "delta": 0.0897,
          "percent_delta": 0.3687,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4376,
          "after": 0.333,
          "delta": -0.1046,
          "percent_delta": -0.239,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2433,
        "predicted_BB": 0.0,
        "predicted_C": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_OBP": 0.3271,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4376,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2433,
          "delta": -0.0897,
          "percent_delta": -0.2694,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3271,
          "delta": -0.0059,
          "percent_delta": -0.0178,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4376,
          "delta": 0.1046,
          "percent_delta": 0.3141,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.4376,
          "delta": 0.1046,
          "percent_delta": 0.3141,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2433,
          "delta": -0.0897,
          "percent_delta": -0.2694,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.114,
        "after": 0.0,
        "delta": -0.114,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.955,
        "after": 3.0,
        "delta": 0.045,
        "percent_delta": 0.0152,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AVG",
        "before": 0.264,
        "after": 0.2433,
        "delta": -0.0207,
        "percent_delta": -0.0784,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.386,
        "after": 0.0,
        "delta": -0.386,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.68,
        "after": 1.0,
        "delta": 0.32,
        "percent_delta": 0.4706,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.14,
        "after": 1.0,
        "delta": 0.86,
        "percent_delta": 6.1429,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.326,
        "after": 0.3271,
        "delta": 0.0011,
        "percent_delta": 0.0034,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_R",
        "before": 0.386,
        "after": 1.0,
        "delta": 0.614,
        "percent_delta": 1.5907,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.45,
        "after": 1.0,
        "delta": 0.55,
        "percent_delta": 1.2222,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.444,
        "after": 0.4376,
        "delta": -0.0064,
        "percent_delta": -0.0144,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.773,
        "after": 1.0,
        "delta": 0.227,
        "percent_delta": 0.2937,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 5,
      "deboosted_metrics": 4,
      "better_metrics": 4,
      "worse_metrics": 5,
      "biggest_boost": {
        "metric": "predicted_HR",
        "before": 0.14,
        "after": 1.0,
        "delta": 0.86,
        "percent_delta": 6.1429,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_BB",
        "before": 0.386,
        "after": 0.0,
        "delta": -0.386,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.114-
predicted_3B0.000-
predicted_AB2.955-
predicted_AVG0.264-
predicted_BB0.386-
predicted_H0.680-
predicted_HR0.140-
predicted_OBP0.326-
predicted_R0.386-
predicted_RBI0.450-
predicted_SLG0.444-
predicted_SO0.773-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1170.003
predicted_3B0.0010.001
predicted_AB3.0490.094
predicted_AVG0.261-0.003
predicted_BB0.378-0.008
predicted_H0.7360.056
predicted_HBP0.005-
predicted_HR0.1590.019
predicted_OBP0.3290.003
predicted_R0.382-0.004
predicted_RBI0.4920.042
predicted_SLG0.4550.011
predicted_SO0.8040.031
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1170.000
predicted_3B0.0010.000
predicted_AB3.0490.000
predicted_AVG0.243-0.018
predicted_BB0.3800.002
predicted_H0.7420.006
predicted_HBP0.0050.000
predicted_HR0.158-0.001
predicted_OBP0.327-0.001
predicted_R0.3900.007
predicted_RBI0.5020.009
predicted_SLG0.438-0.018
predicted_SO0.800-0.004
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.05), rates preserved: AVG=0.243 HR/AB=0.052

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.117
predicted_3B0.000-0.001
predicted_AB3.000-0.049
predicted_AVG0.3330.090
predicted_BB0.000-0.380
predicted_H1.0000.258
predicted_HR0.000-0.158
predicted_OBP0.3330.006
predicted_R0.000-0.390
predicted_RBI0.000-0.502
predicted_SLG0.333-0.105
predicted_SO1.0000.200
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR1.0001.000
PA3.000-
R1.0001.000
RBI1.0001.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 44
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-16.0004.0000.0000.0001.0004.0001.0002.0005.0000.25000.33330.43750.25000.06250.25000.12500.3125
last_100.2010-32.0009.0002.0000.0003.0008.0004.0003.0009.0000.28120.33330.62500.28120.09380.25000.09380.2812
season0.6044-130.00033.0005.0000.0007.00018.00017.00017.00034.0000.25380.33780.45380.25390.05390.13850.13080.2615
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1210
predicted_3B0.0020
predicted_AB3.1900
predicted_AVG0.2572
predicted_BB0.3650
predicted_H0.8200
predicted_HBP0.0050
predicted_HR0.1870
predicted_OBP0.3322
predicted_R0.3770
predicted_RBI0.5560
predicted_SLG0.4721
predicted_SO0.8500
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.11400.12100.1168model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB2.95503.19003.0492model_form_blend
predicted_AVG0.26400.25720.2613model_form_blend
predicted_BB0.38600.36500.3776model_form_blend
predicted_H0.68000.82000.7361model_form_blend
predicted_HBP-0.00500.0050form_only
predicted_HR0.14000.18700.1588model_form_blend
predicted_OBP0.32600.33220.3285model_form_blend
predicted_R0.38600.37700.3824model_form_blend
predicted_RBI0.45000.55600.4925model_form_blend
predicted_SLG0.44400.47210.4553model_form_blend
predicted_SO0.77300.85000.8039model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date120
Season rows before report date120
Report year2026
Profile rows used44
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA3
AB3
H1
2B0
3B0
HR1
R1
RBI1
BB0
SO1
SF0
HBP0
season_avg0.254

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB3
Hitting_AVG0.333
Hitting_BB1
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB1
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedC
gameID20260613_NYY@TOR
game_typefull
mlbID678218
playerID678218
playerNameBrandon Valenzuela
posC
startedTrue
startingPositionC
teamTOR
teamID29
game_date2026-06-13
sl_k_percent22.8
sl_bb_percent11.4
sl_woba0.347
sl_xwoba0.35
sl_xba0.265
sl_xslg0.448
sl_sweet_spot_percent41.8
sl_barrel_batted_rate9.2
sl_hard_hit_percent36.7
sl_exit_velocity_avg89.2
sl_launch_angle_avg16.0
sl_whiff_percent25.8
sl_swing_percent50.3
Andrés Giménez (665926) · BATTER · SS · Team TOR
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 211
All-history rows before 20260618: 211
System season_avg: 0.2320
Data season_avg (2026 season-to-date): 0.2320
Diff (system - data): 0.0000
System opponent_avg: 0.2500

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1450.0000.000Hitting_2B0.1370.000-0.1370.000
predicted_3B0.0140.0000.000Hitting_3B0.0190.000-0.0190.000
predicted_AB3.3773.0003.000Hitting_AB3.5554.000-0.555-1.000
predicted_AVG0.2570.0000.333Hitting_AVG0.2320.500-0.232-0.500
predicted_BB0.1160.0000.000Hitting_BB0.1040.000-0.1040.000
predicted_CS-0.0000.000BaseRunning_CS0.0190.000-0.0190.000
predicted_H0.7800.0001.000Hitting_H0.8252.000-0.825-2.000
predicted_HR0.1000.0000.000Hitting_HR0.1230.000-0.1230.000
predicted_OBP0.3170.0000.333Hitting_OBP0.2670.500-0.267-0.500
predicted_R0.2900.0000.000Hitting_R0.2942.000-0.294-2.000
predicted_RBI0.4000.0000.000Hitting_RBI0.5451.000-0.545-1.000
predicted_SLG0.4080.0000.333Hitting_SLG0.3850.500-0.385-0.500
predicted_SO0.7251.0001.000Hitting_SO0.6681.0000.3320.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics1
Deboosted Metrics8
Better Metrics0
Worse Metrics9
Biggest Boostpredicted_SO: 0.7250 -> 1.0000 (boost 0.2750, worse)
Biggest Deboostpredicted_H: 0.7800 -> 0.0000 (deboost -0.7800, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend44040predicted_R: 0.2900 -> 0.3758 (boost 0.0858, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.3184 -> 0.2750 (deboost -0.0434, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling82617predicted_SO: 0.7604 -> 1.0000 (boost 0.2396, worse)predicted_RBI: 0.4271 -> 0.0000 (deboost -0.4271, worse)AB rounded to 3 (raw=3.40), rates preserved: AVG=0.252 HR/AB=0.032
5bvp_blend00000--Sample-size BvP blend (BvP AB=20.0, weight=0.160, BvP AVG=0.250)
6consistency_constraints10101-predicted_R: 0.3828 -> 0.0000 (deboost -0.3828, worse)Enforced H<=AB, HR<=H, safety nets, derived R
7embedded_savant_player_context32121predicted_AVG: 0.2524 -> 0.3330 (boost 0.0806, better)predicted_SLG: 0.4030 -> 0.3330 (deboost -0.0700, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
8simulation_box_score_reference10101-predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
9current_json_final31212predicted_SLG: 0.3330 -> 0.4030 (boost 0.0700, better)predicted_AVG: 0.3330 -> 0.2524 (deboost -0.0806, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "665926",
  "player_name": "Andrés Giménez",
  "position": "SS",
  "team": "TOR",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.145,
        "predicted_3B": 0.014,
        "predicted_AB": 3.377,
        "predicted_AVG": 0.257,
        "predicted_BB": 0.116,
        "predicted_H": 0.78,
        "predicted_HR": 0.1,
        "predicted_OBP": 0.317,
        "predicted_R": 0.29,
        "predicted_RBI": 0.4,
        "predicted_SLG": 0.408,
        "predicted_SO": 0.725
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1626,
        "predicted_3B": 0.0119,
        "predicted_AB": 3.4021,
        "predicted_AVG": 0.2654,
        "predicted_BB": 0.1055,
        "predicted_H": 0.852,
        "predicted_HBP": 0.131,
        "predicted_HR": 0.1092,
        "predicted_OBP": 0.3184,
        "predicted_R": 0.3758,
        "predicted_RBI": 0.4193,
        "predicted_SLG": 0.4229,
        "predicted_SO": 0.7644
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.145,
          "after": 0.1626,
          "delta": 0.0176,
          "percent_delta": 0.1214,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.014,
          "after": 0.0119,
          "delta": -0.0021,
          "percent_delta": -0.15,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.377,
          "after": 3.4021,
          "delta": 0.0251,
          "percent_delta": 0.0074,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.257,
          "after": 0.2654,
          "delta": 0.0084,
          "percent_delta": 0.0327,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.116,
          "after": 0.1055,
          "delta": -0.0105,
          "percent_delta": -0.0905,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.78,
          "after": 0.852,
          "delta": 0.072,
          "percent_delta": 0.0923,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1,
          "after": 0.1092,
          "delta": 0.0092,
          "percent_delta": 0.092,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.317,
          "after": 0.3184,
          "delta": 0.0014,
          "percent_delta": 0.0044,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.29,
          "after": 0.3758,
          "delta": 0.0858,
          "percent_delta": 0.2959,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4,
          "after": 0.4193,
          "delta": 0.0193,
          "percent_delta": 0.0482,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.408,
          "after": 0.4229,
          "delta": 0.0149,
          "percent_delta": 0.0365,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.725,
          "after": 0.7644,
          "delta": 0.0394,
          "percent_delta": 0.0543,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 4,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.29,
          "after": 0.3758,
          "delta": 0.0858,
          "percent_delta": 0.2959,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 69
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1626,
        "predicted_3B": 0.0119,
        "predicted_AB": 3.4021,
        "predicted_AVG": 0.2524,
        "predicted_BB": 0.106,
        "predicted_H": 0.8586,
        "predicted_HBP": 0.131,
        "predicted_HR": 0.1087,
        "predicted_OBP": 0.275,
        "predicted_R": 0.3828,
        "predicted_RBI": 0.4271,
        "predicted_SLG": 0.403,
        "predicted_SO": 0.7604
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1626,
          "after": 0.1626,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0119,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4021,
          "after": 3.4021,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2654,
          "after": 0.2524,
          "delta": -0.013,
          "percent_delta": -0.049,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1055,
          "after": 0.106,
          "delta": 0.0005,
          "percent_delta": 0.0047,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.852,
          "after": 0.8586,
          "delta": 0.0066,
          "percent_delta": 0.0077,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.131,
          "after": 0.131,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1092,
          "after": 0.1087,
          "delta": -0.0005,
          "percent_delta": -0.0046,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3184,
          "after": 0.275,
          "delta": -0.0434,
          "percent_delta": -0.1363,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3758,
          "after": 0.3828,
          "delta": 0.007,
          "percent_delta": 0.0186,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4193,
          "after": 0.4271,
          "delta": 0.0078,
          "percent_delta": 0.0186,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4229,
          "after": 0.403,
          "delta": -0.0199,
          "percent_delta": -0.0471,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7644,
          "after": 0.7604,
          "delta": -0.004,
          "percent_delta": -0.0052,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.3184,
          "after": 0.275,
          "delta": -0.0434,
          "percent_delta": -0.1363,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.40), rates preserved: AVG=0.252 HR/AB=0.032",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1626,
          "after": 0.0,
          "delta": -0.1626,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0,
          "delta": -0.0119,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4021,
          "after": 3.0,
          "delta": -0.4021,
          "percent_delta": -0.1182,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.106,
          "after": 0.0,
          "delta": -0.106,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8586,
          "after": 1.0,
          "delta": 0.1414,
          "percent_delta": 0.1647,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.131,
          "after": 0.0,
          "delta": -0.131,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1087,
          "after": 0.0,
          "delta": -0.1087,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4271,
          "after": 0.0,
          "delta": -0.4271,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7604,
          "after": 1.0,
          "delta": 0.2396,
          "percent_delta": 0.3151,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 8,
        "boosted_metrics": 2,
        "deboosted_metrics": 6,
        "better_metrics": 1,
        "worse_metrics": 7,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.7604,
          "after": 1.0,
          "delta": 0.2396,
          "percent_delta": 0.3151,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4271,
          "after": 0.0,
          "delta": -0.4271,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "bvp_blend",
      "description": "Sample-size BvP blend (BvP AB=20.0, weight=0.160, BvP AVG=0.250)",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {
        "model_expectation": 0.84,
        "bvp": 0.16
      },
      "window_games": {}
    },
    {
      "index": 6,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3828,
          "after": 0.0,
          "delta": -0.3828,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3828,
          "after": 0.0,
          "delta": -0.3828,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2524,
          "after": 0.333,
          "delta": 0.0806,
          "percent_delta": 0.3193,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.275,
          "after": 0.333,
          "delta": 0.058,
          "percent_delta": 0.2109,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.403,
          "after": 0.333,
          "delta": -0.07,
          "percent_delta": -0.1737,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2524,
          "after": 0.333,
          "delta": 0.0806,
          "percent_delta": 0.3193,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.403,
          "after": 0.333,
          "delta": -0.07,
          "percent_delta": -0.1737,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 9,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2524,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.275,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.403,
        "predicted_SO": 1.0,
        "predicted_SS": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2524,
          "delta": -0.0806,
          "percent_delta": -0.2421,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.275,
          "delta": -0.058,
          "percent_delta": -0.1742,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.403,
          "delta": 0.07,
          "percent_delta": 0.2102,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.403,
          "delta": 0.07,
          "percent_delta": 0.2102,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2524,
          "delta": -0.0806,
          "percent_delta": -0.2421,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.145,
        "after": 0.0,
        "delta": -0.145,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.014,
        "after": 0.0,
        "delta": -0.014,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.377,
        "after": 3.0,
        "delta": -0.377,
        "percent_delta": -0.1116,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.257,
        "after": 0.2524,
        "delta": -0.0046,
        "percent_delta": -0.0179,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.116,
        "after": 0.0,
        "delta": -0.116,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.78,
        "after": 0.0,
        "delta": -0.78,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.317,
        "after": 0.275,
        "delta": -0.042,
        "percent_delta": -0.1325,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.29,
        "after": 0.0,
        "delta": -0.29,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.4,
        "after": 0.0,
        "delta": -0.4,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.408,
        "after": 0.403,
        "delta": -0.005,
        "percent_delta": -0.0123,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.725,
        "after": 1.0,
        "delta": 0.275,
        "percent_delta": 0.3793,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 1,
      "deboosted_metrics": 8,
      "better_metrics": 0,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.725,
        "after": 1.0,
        "delta": 0.275,
        "percent_delta": 0.3793,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.78,
        "after": 0.0,
        "delta": -0.78,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.145-
predicted_3B0.014-
predicted_AB3.377-
predicted_AVG0.257-
predicted_BB0.116-
predicted_H0.780-
predicted_HR0.100-
predicted_OBP0.317-
predicted_R0.290-
predicted_RBI0.400-
predicted_SLG0.408-
predicted_SO0.725-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1630.018
predicted_3B0.012-0.002
predicted_AB3.4020.025
predicted_AVG0.2650.008
predicted_BB0.105-0.011
predicted_H0.8520.072
predicted_HBP0.131-
predicted_HR0.1090.009
predicted_OBP0.3180.001
predicted_R0.3760.086
predicted_RBI0.4190.019
predicted_SLG0.4230.015
predicted_SO0.7640.039
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1630.000
predicted_3B0.0120.000
predicted_AB3.4020.000
predicted_AVG0.252-0.013
predicted_BB0.1060.001
predicted_H0.8590.007
predicted_HBP0.1310.000
predicted_HR0.109-0.001
predicted_OBP0.275-0.043
predicted_R0.3830.007
predicted_RBI0.4270.008
predicted_SLG0.403-0.020
predicted_SO0.760-0.004
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.40), rates preserved: AVG=0.252 HR/AB=0.032

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. bvp_blend

Sample-size BvP blend (BvP AB=20.0, weight=0.160, BvP AVG=0.250)

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
H1.0000.000
HR0.0000.000
RBI0.0000.000
SO1.0000.000
6. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
7. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.163
predicted_3B0.000-0.012
predicted_AB3.000-0.402
predicted_AVG0.3330.081
predicted_BB0.000-0.106
predicted_H1.0000.141
predicted_HR0.000-0.109
predicted_OBP0.3330.058
predicted_R0.000-0.383
predicted_RBI0.000-0.427
predicted_SLG0.333-0.070
predicted_SO1.0000.240
8. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA3.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 69
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-17.0006.0001.0000.0001.0002.0005.0000.0004.0000.35290.38890.58820.35290.05880.11770.00000.2353
last_100.2010-34.00012.0003.0000.0001.0004.0006.0000.00011.0000.35290.38890.52940.35290.02940.11770.00000.3235
season0.6069-233.00054.00010.0001.0007.00032.00020.0008.00050.0000.23180.27600.37340.23180.03000.13730.03430.2146
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1870
predicted_3B0.0090
predicted_AB3.4370
predicted_AVG0.2771
predicted_BB0.0910
predicted_H0.9520
predicted_HBP0.1310
predicted_HR0.1220
predicted_OBP0.3203
predicted_R0.4950
predicted_RBI0.4460
predicted_SLG0.4435
predicted_SO0.8190
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.14500.18700.1626model_form_blend
predicted_3B0.01400.00900.0119model_form_blend
predicted_AB3.37703.43703.4021model_form_blend
predicted_AVG0.25700.27710.2654model_form_blend
predicted_BB0.11600.09100.1055model_form_blend
predicted_H0.78000.95200.8520model_form_blend
predicted_HBP-0.13100.1310form_only
predicted_HR0.10000.12200.1092model_form_blend
predicted_OBP0.31700.32030.3184model_form_blend
predicted_R0.29000.49500.3758model_form_blend
predicted_RBI0.40000.44600.4193model_form_blend
predicted_SLG0.40800.44350.4229model_form_blend
predicted_SO0.72500.81900.7644model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date211
Season rows before report date211
Report year2026
Profile rows used69
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA3
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.232

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB3
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.5
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R2
Hitting_RBI1
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB2
Hitting_battingOrder9
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedSS
gameID20260617_TOR@BOS
game_typefull
mlbID665926
playerID665926
playerNameAndrés Giménez
posSS
startedTrue
startingPositionSS
teamTOR
teamID29
game_date2026-06-17
sl_k_percent19.9
sl_bb_percent3.2
sl_woba0.286
sl_xwoba0.265
sl_xba0.224
sl_xslg0.316
sl_sweet_spot_percent28.0
sl_barrel_batted_rate3.8
sl_hard_hit_percent23.7
sl_exit_velocity_avg86.2
sl_launch_angle_avg10.9
sl_whiff_percent25.3
sl_swing_percent57.0
Trey Yesavage (702056) · PITCHER · Starter · Team TOR
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 9
All-history rows before 20260618: 9

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB2.7786.000-2.778-6.000
predicted_ER0.0000.0000.000Pitching_ER2.2225.000-2.222-5.000
predicted_H4.0004.0004.000Pitching_H3.8894.0000.1110.000
predicted_IP5.2005.2005.200Pitching_InningsPitched5.1675.0000.0330.200
predicted_SO6.0006.0006.000Pitching_SO5.2223.0000.7783.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 5.6667 -> 5.2000 (deboost -0.4667, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final10101-predicted_IP: 5.6667 -> 5.2000 (deboost -0.4667, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "702056",
  "player_name": "Trey Yesavage",
  "position": "Starter",
  "team": "TOR",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 4.0,
        "predicted_HR": 0.0,
        "predicted_IP": 5.6667,
        "predicted_SO": 6.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 4.0,
        "predicted_HR": 0.0,
        "predicted_IP": 5.2,
        "predicted_R": 0.0,
        "predicted_SO": 6.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.6667,
          "after": 5.2,
          "delta": -0.4667,
          "percent_delta": -0.0824,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 6.0,
          "after": 6.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 5.6667,
          "after": 5.2,
          "delta": -0.4667,
          "percent_delta": -0.0824,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 4.0,
        "after": 4.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 5.6667,
        "after": 5.2,
        "delta": -0.4667,
        "percent_delta": -0.0824,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 6.0,
        "after": 6.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 5.6667,
        "after": 5.2,
        "delta": -0.4667,
        "percent_delta": -0.0824,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H4.000-
predicted_HR0.000-
predicted_IP5.667-
predicted_SO6.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 9
Reference playing time: 5.667
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.45528.10017.00018.00017.00026.0003.0005.40001.23530.60000.63530.60000.91760.1059
last_100.35947.20020.00035.00025.00047.0003.0003.77621.25870.41960.73430.52450.98600.0629
season0.20947.20020.00035.00025.00047.0003.0003.77621.25870.41960.73430.52450.98600.0629
Weighted Prediction From Real Data
MetricValue
predicted_BB2.7740
predicted_ER2.9050
predicted_ERA4.6811
predicted_H4.3600
predicted_HR0.6120
predicted_IP5.2000
predicted_SO5.2590
predicted_WHIP1.2775
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00002.77401.3846model_form_blend
predicted_ER0.00002.90501.4500model_form_blend
predicted_ERA-4.68114.6811form_only
predicted_H4.00004.36004.1797model_form_blend
predicted_HR0.00000.61200.3055model_form_blend
predicted_IP5.20005.20005.2000model_form_blend
predicted_SO6.00005.25905.6301model_form_blend
predicted_WHIP-1.27751.2775form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date9
Season rows before report date9
Report year2026
Profile rows used9
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP5.2
H4
R0
ER0
BB0
SO6
HR0
BF21
Pitches88

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB6
Pitching_Balk0
Pitching_Batters Faced25
Pitching_ER5
Pitching_ERA3.78
Pitching_Flyouts4
Pitching_Groundouts3
Pitching_H4
Pitching_HBP0
Pitching_HR1
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched5.0
Pitching_Pitches81
Pitching_R5
Pitching_SO3
Pitching_Strikes42
Pitching_Wild Pitch0
Pitching_decisionW
Pitching_pitchingOrder1
allPositionsPlayedP
gameID20260612_NYY@TOR
game_typefull
mlbID702056
playerID702056
playerNameTrey Yesavage
posP
startedTrue
startingPositionP
teamTOR
teamID29
game_date2026-06-12
sl_k_percent23.7
sl_bb_percent12.6
sl_woba0.296
sl_xwoba0.28
sl_sweet_spot_percent36.8
sl_barrel_batted_rate4.8
sl_hard_hit_percent33.6
sl_whiff_percent29.1
sl_swing_percent48.5
sl_avg_best_speed78.579100984
sl_avg_hyper_speed93.468727623
Jeff Hoffman (656546) · PITCHER · Middle Reliever · Team TOR
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 35
All-history rows before 20260618: 35

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB2.0002.0002.000Pitching_BB0.3140.0001.6862.000
predicted_ER1.0001.0001.000Pitching_ER0.5430.0000.4571.000
predicted_H1.0001.0001.000Pitching_H1.0861.000-0.0860.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.8371.0000.1630.000
predicted_SO0.0000.0000.000Pitching_SO1.5140.000-1.5140.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "656546",
  "player_name": "Jeff Hoffman",
  "position": "Middle Reliever",
  "team": "TOR",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 1.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 1.0,
        "predicted_IP": 1.0,
        "predicted_R": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB2.000-
predicted_ER1.000-
predicted_H1.000-
predicted_HR1.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 35
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.0000.0002.0001.0006.0000.0000.00000.60000.00000.40000.20001.20000.0000
last_100.35109.1006.0009.0003.00013.0001.0005.78571.28570.64290.96430.32141.39290.1071
season0.203532.10019.00038.00011.00053.0004.0005.28871.51550.58761.17530.34021.63920.1237
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3110
predicted_ER0.4120
predicted_ERA3.7068
predicted_H0.8500
predicted_HR0.0990
predicted_IP1.0000
predicted_SO1.1720
predicted_WHIP1.1606
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB2.00000.31101.2146model_form_blend
predicted_ER1.00000.41200.7266model_form_blend
predicted_ERA-3.70683.7068form_only
predicted_H1.00000.85000.9302model_form_blend
predicted_HR1.00000.09900.5810model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00001.17200.5450model_form_blend
predicted_WHIP-1.16061.1606form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date35
Season rows before report date35
Report year2026
Profile rows used35
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H1
R1
ER1
BB2
SO0
HR1
BF6
Pitches24

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER0
Pitching_ERA5.29
Pitching_Flyouts0
Pitching_Groundouts3
Pitching_H1
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches25
Pitching_R0
Pitching_SO0
Pitching_Strikes17
Pitching_Wild Pitch0
Pitching_decisionH
Pitching_pitchingOrder5
allPositionsPlayedP
gameID20260617_TOR@BOS
game_typefull
mlbID656546
playerID656546
playerNameJeff Hoffman
posP
startedFalse
startingPositionP
teamTOR
teamID29
game_date2026-06-17
sl_k_percent36.1
sl_bb_percent7.5
sl_woba0.34
sl_xwoba0.269
sl_sweet_spot_percent30.0
sl_barrel_batted_rate6.3
sl_hard_hit_percent27.5
sl_whiff_percent39.6
sl_swing_percent50.6
sl_avg_best_speed76.348508462
sl_avg_hyper_speed92.432184744
Louis Varland (686973) · PITCHER · Middle Reliever · Team TOR
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 36
All-history rows before 20260618: 36

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.3060.000-0.3060.000
predicted_ER0.0000.0000.000Pitching_ER0.1110.000-0.1110.000
predicted_H0.0000.0000.000Pitching_H0.7780.000-0.7780.000
predicted_IP1.1001.1001.100Pitching_InningsPitched1.0141.0000.0860.100
predicted_SO2.0002.0002.000Pitching_SO1.5283.0000.472-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final11010predicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "686973",
  "player_name": "Louis Varland",
  "position": "Middle Reliever",
  "team": "TOR",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.1,
        "predicted_R": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO2.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 36
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.1003.0004.0002.00010.0001.0005.06251.12500.56250.75000.37501.87500.1875
last_100.351011.1003.0006.0002.00014.0001.0002.38240.70590.26470.52940.17651.23530.0882
season0.203640.0004.00028.00011.00055.0001.0000.90000.97500.10000.70000.27501.37500.0250
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3160
predicted_ER0.4180
predicted_ERA3.7618
predicted_H0.7830
predicted_HR0.1300
predicted_IP1.0000
predicted_SO1.3140
predicted_WHIP1.0985
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.31600.1538model_form_blend
predicted_ER0.00000.41800.2035model_form_blend
predicted_ERA-3.76183.7618form_only
predicted_H0.00000.78300.3812model_form_blend
predicted_HR0.00000.13000.0633model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO2.00001.31401.6661model_form_blend
predicted_WHIP-1.09851.0985form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date36
Season rows before report date36
Report year2026
Profile rows used36
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.1
H0
R0
ER0
BB0
SO2
HR0
BF4
Pitches17

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA0.90
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches10
Pitching_R0
Pitching_SO3
Pitching_Strikes9
Pitching_Wild Pitch0
Pitching_decisionS
Pitching_pitchingOrder7
allPositionsPlayedP
gameID20260617_TOR@BOS
game_typefull
mlbID686973
playerID686973
playerNameLouis Varland
posP
startedFalse
startingPositionP
teamTOR
teamID29
game_date2026-06-17
sl_k_percent35.7
sl_bb_percent7.1
sl_woba0.227
sl_xwoba0.226
sl_sweet_spot_percent23.9
sl_barrel_batted_rate3.4
sl_hard_hit_percent36.4
sl_whiff_percent29.1
sl_swing_percent52.5
sl_avg_best_speed75.030713636
sl_avg_hyper_speed93.423063409
Tyler Rogers (643511) · PITCHER · Middle Reliever · Team TOR
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 36
All-history rows before 20260618: 36

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.2780.000-0.2780.000
predicted_ER0.0000.0000.000Pitching_ER0.1940.000-0.1940.000
predicted_H1.0001.0001.000Pitching_H0.7221.0000.2780.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.8941.0000.1060.000
predicted_SO0.0000.0000.000Pitching_SO0.5560.000-0.5560.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "643511",
  "player_name": "Tyler Rogers",
  "position": "Middle Reliever",
  "team": "TOR",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 36
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.0000.0005.0000.0002.0000.0000.00001.00000.00001.00000.00000.40000.0000
last_100.351010.0000.0007.0001.0005.0000.0000.00000.80000.00000.70000.10000.50000.0000
season0.203635.0007.00026.00010.00020.0000.0001.80001.02860.20000.74290.28570.57140.0000
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2060
predicted_ER0.2330
predicted_ERA2.0956
predicted_H0.8980
predicted_HR0.0610
predicted_IP1.0000
predicted_SO0.6650
predicted_WHIP1.1037
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.20600.0975model_form_blend
predicted_ER0.00000.23300.1103model_form_blend
predicted_ERA-2.09562.0956form_only
predicted_H1.00000.89800.9517model_form_blend
predicted_HR0.00000.06100.0289model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00000.66500.3147model_form_blend
predicted_WHIP-1.10371.1037form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date36
Season rows before report date36
Report year2026
Profile rows used36
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H1
R0
ER0
BB0
SO0
HR0
BF4
Pitches16

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER0
Pitching_ERA1.80
Pitching_Flyouts0
Pitching_Groundouts3
Pitching_H1
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches11
Pitching_R0
Pitching_SO0
Pitching_Strikes8
Pitching_Wild Pitch0
Pitching_decisionH
Pitching_pitchingOrder6
allPositionsPlayedP
gameID20260617_TOR@BOS
game_typefull
mlbID643511
playerID643511
playerNameTyler Rogers
posP
startedFalse
startingPositionP
teamTOR
teamID29
game_date2026-06-17
sl_k_percent14.4
sl_bb_percent7.2
sl_woba0.219
sl_xwoba0.24
sl_sweet_spot_percent21.1
sl_barrel_batted_rate0.0
sl_hard_hit_percent22.9
sl_whiff_percent14.6
sl_swing_percent49.1
sl_avg_best_speed71.755993396
sl_avg_hyper_speed91.892337925

Home Team: BOS

Home Pitcher Deep Analysis

FieldValue
PitcherSonny Gray
RoleStarter
Projection Sourceall_players_stats_recent_season_blend
Savant Quality Score-0.0702
ESPN Rank73
Movement AvailableTrue
Primary Pitch-
Movement Score-0.1359
Avg Velo87.3030
Avg Spin2518.9902
HB Inches0
IVB Inches0
Release Extension0
Pre IP5.2000
Pre ER1
Pre H1
Pre BB2
Pre SO10
Season ERA3.0321
Season WHIP1.2032
Role Avg IP5.1940
Recent Avg IP5.6670
Last Start IP6
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "BOS",
    "games": 80,
    "wins": 31,
    "losses": 49,
    "win_pct": 0.3875,
    "runs_scored": 302.0,
    "runs_allowed": 329.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3375,
    "avg_runs_scored": 3.775,
    "avg_runs_allowed": 4.1125,
    "offense_index": 0.8371,
    "defense_index": 1.0965,
    "current_streak": "L3",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 3.1,
      "avg_runs_allowed": 3.9,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.2418
  },
  "opponent": {
    "team": "TOR",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 334.0,
    "runs_allowed": 329.0,
    "run_differential": 5.0,
    "run_differential_per_game": 0.0625,
    "avg_runs_scored": 4.175,
    "avg_runs_allowed": 4.1125,
    "offense_index": 0.9258,
    "defense_index": 1.0965,
    "current_streak": "W2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 3.9,
      "run_differential": 3.0
    },
    "available": true,
    "quality_score": 0.032
  },
  "edges": {
    "quality_edge": -0.2738,
    "offense_edge": -0.1629,
    "opponent_offense_edge": -0.0742,
    "defense_strength": 0.0965,
    "opponent_defense_weakness": -0.0965,
    "recent_win_pct_edge": -0.4
  },
  "player_factors": {
    "ip": 0.9949,
    "run_prevention": 0.9922,
    "strikeout": 0.9977
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "543243",
    "profile": {
      "available": true,
      "pitcher_id": "543243",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 177.0,
        "k_percent": 19.9,
        "bb_percent": 6.3,
        "woba": 0.309,
        "xwoba": 0.317,
        "sweet_spot_percent": 37.6,
        "barrel_batted_rate": 7.7,
        "hard_hit_percent": 35.5,
        "avg_best_speed": 77.5161,
        "avg_hyper_speed": 93.718,
        "whiff_percent": 22.1,
        "swing_percent": 47.0
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.023,
        "command_and_miss": -0.2021,
        "regression_edge": -0.2286,
        "xwoba_edge": -0.0571,
        "barrel_edge": -0.0889,
        "hard_hit_edge": 0.4,
        "whiff_edge": -0.5143,
        "bb_edge": 0.725,
        "pitch_design_score": -0.1359
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "543243",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 77,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 77,
          "pitch_usage": 0.0,
          "release_speed": 87.30296275663324,
          "release_spin_rate": 2518.9902176014775,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 77,
            "pitch_usage": 0.0,
            "release_speed": 87.30296275663324,
            "release_spin_rate": 2518.9902176014775,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 87.303,
          "release_spin_rate": 2518.9902,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": -0.1359,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": -0.9704,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": -0.0702,
      "sample_weight": 0.708,
      "run_prevention_factor": 1.006,
      "strikeout_factor": 0.9749,
      "walk_factor": 0.9589,
      "homer_factor": 0.9949,
      "woba_minus_xwoba": -0.008,
      "regression_flag": "neutral",
      "espn_rank": {
        "available": true,
        "player_id": "543243",
        "espn_id": 32082,
        "player_name": "Sonny Gray",
        "team": "BOS",
        "role": "pitcher",
        "espn_rank": 73,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 73,
          "gp_value": 12.0,
          "gp_rank": 352,
          "gs_value": 12.0,
          "gs_rank": 88,
          "qs_value": 7.0,
          "qs_rank": 29,
          "era_value": 3.032,
          "era_rank": null,
          "w_value": 8.0,
          "w_rank": 4,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 62.1,
          "ip_rank": 107,
          "h_value": 59.0,
          "h_rank": 101,
          "er_value": 21.0,
          "er_rank": 147,
          "hr_value": 6.0,
          "hr_rank": 125,
          "bb_value": 16.0,
          "bb_rank": 176,
          "k_value": 51.0,
          "k_rank": 108,
          "k_per_9_value": 7.3636365,
          "k_per_9_rank": 27,
          "whip_value": 1.2032,
          "whip_rank": null,
          "war_value": 1.22,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 2.0,
        "factor": 1.0042,
        "adjusted": 2
      },
      "predicted_H": {
        "original": 5.0,
        "factor": 1.0042,
        "adjusted": 5
      },
      "predicted_BB": {
        "original": 1.0,
        "factor": 0.9709,
        "adjusted": 1
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9964,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 5.0,
        "factor": 0.9822,
        "adjusted": 5
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 52.1,
    "ER": 16,
    "H": 49,
    "BB": 15,
    "SO": 43,
    "HR": 5,
    "ERA": 2.751592356687898,
    "WHIP": 1.2229299363057324,
    "K9": 7.394904458598726,
    "HR9": 0.8598726114649681,
    "games_pitched": 10,
    "quality_starts": 6,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-12T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "543243",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 77,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 77,
    "pitch_usage": 0.0,
    "release_speed": 87.30296275663324,
    "release_spin_rate": 2518.9902176014775,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 77,
      "pitch_usage": 0.0,
      "release_speed": 87.30296275663324,
      "release_spin_rate": 2518.9902176014775,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 87.303,
    "release_spin_rate": 2518.9902,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": -0.1359,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": -0.9704,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 12.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7059,
    "prior_weight": 0.2941
  },
  "role": "pitcher",
  "player_id": "543243",
  "report_date": "20260618_T",
  "season_year": 2026,
  "rows_used": 12,
  "reference_playing_time": 5.667,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 28.1,
        "ER": 9.0,
        "R": 9.0,
        "H": 28.0,
        "BB": 8.0,
        "SO": 30.0,
        "HR": 2.0,
        "BF": 117.0,
        "Pitches": 414.0
      },
      "per_game": {
        "IP": 5.2,
        "ER": 1.8,
        "R": 1.8,
        "H": 5.6,
        "BB": 1.6,
        "SO": 6.0,
        "HR": 0.4,
        "BF": 23.4,
        "Pitches": 82.8
      },
      "rates": {
        "ERA": 2.8588,
        "WHIP": 1.2706,
        "ER_per_IP": 0.31765,
        "H_per_IP": 0.98824,
        "BB_per_IP": 0.28235,
        "SO_per_IP": 1.05882,
        "HR_per_IP": 0.07059
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 52.1,
        "ER": 16.0,
        "R": 16.0,
        "H": 49.0,
        "BB": 15.0,
        "SO": 43.0,
        "HR": 5.0,
        "BF": 214.0,
        "Pitches": 785.0
      },
      "per_game": {
        "IP": 5.1,
        "ER": 1.6,
        "R": 1.6,
        "H": 4.9,
        "BB": 1.5,
        "SO": 4.3,
        "HR": 0.5,
        "BF": 21.4,
        "Pitches": 78.5
      },
      "rates": {
        "ERA": 2.7516,
        "WHIP": 1.2229,
        "ER_per_IP": 0.30573,
        "H_per_IP": 0.93631,
        "BB_per_IP": 0.28662,
        "SO_per_IP": 0.82166,
        "HR_per_IP": 0.09554
      }
    },
    "season": {
      "games": 12,
      "totals": {
        "IP": 62.1,
        "ER": 21.0,
        "R": 22.0,
        "H": 59.0,
        "BB": 16.0,
        "SO": 51.0,
        "HR": 6.0,
        "BF": 256.0,
        "Pitches": 952.0
      },
      "per_game": {
        "IP": 5.1,
        "ER": 1.75,
        "R": 1.8333,
        "H": 4.9167,
        "BB": 1.3333,
        "SO": 4.25,
        "HR": 0.5,
        "BF": 21.3333,
        "Pitches": 79.3333
      },
      "rates": {
        "ERA": 3.0321,
        "WHIP": 1.2032,
        "ER_per_IP": 0.3369,
        "H_per_IP": 0.94652,
        "BB_per_IP": 0.25668,
        "SO_per_IP": 0.81818,
        "HR_per_IP": 0.09626
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 5.2,
    "predicted_ER": 2.056,
    "predicted_H": 5.345,
    "predicted_BB": 1.681,
    "predicted_SO": 5.153,
    "predicted_HR": 0.568,
    "predicted_ERA": 3.3419,
    "predicted_WHIP": 1.2689
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.4743,
  "form_weight": 0.5257,
  "form_reliability": 0.7059,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 12.0,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.7059,
    "prior_weight": 0.2941
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 5.2,
      "form": 5.2,
      "final": 5.2,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 1.0,
      "form": 2.056,
      "final": 1.5552,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 5.345,
      "final": 3.2844,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 2.0,
      "form": 1.681,
      "final": 1.8323,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 10.0,
      "form": 5.153,
      "final": 7.4517,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 1.0,
      "form": 0.568,
      "final": 0.7729,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.3419,
      "final": 3.3419,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.2689,
      "final": 1.2689,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherAroldis Chapman
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.2916
ESPN Rank68
Movement AvailableTrue
Primary Pitch-
Movement Score0.2790
Avg Velo94.7112
Avg Spin2304.1363
HB Inches0
IVB Inches0
Release Extension0
Pre IP1.1000
Pre ER0
Pre H0
Pre BB0
Pre SO0
Season ERA0.4355
Season WHIP0.9194
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "BOS",
    "games": 80,
    "wins": 31,
    "losses": 49,
    "win_pct": 0.3875,
    "runs_scored": 302.0,
    "runs_allowed": 329.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3375,
    "avg_runs_scored": 3.775,
    "avg_runs_allowed": 4.1125,
    "offense_index": 0.8371,
    "defense_index": 1.0965,
    "current_streak": "L3",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 3.1,
      "avg_runs_allowed": 3.9,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.2418
  },
  "opponent": {
    "team": "TOR",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 334.0,
    "runs_allowed": 329.0,
    "run_differential": 5.0,
    "run_differential_per_game": 0.0625,
    "avg_runs_scored": 4.175,
    "avg_runs_allowed": 4.1125,
    "offense_index": 0.9258,
    "defense_index": 1.0965,
    "current_streak": "W2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 3.9,
      "run_differential": 3.0
    },
    "available": true,
    "quality_score": 0.032
  },
  "edges": {
    "quality_edge": -0.2738,
    "offense_edge": -0.1629,
    "opponent_offense_edge": -0.0742,
    "defense_strength": 0.0965,
    "opponent_defense_weakness": -0.0965,
    "recent_win_pct_edge": -0.4
  },
  "player_factors": {
    "ip": 0.9949,
    "run_prevention": 0.9922,
    "strikeout": 0.9977
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "547973",
    "profile": {
      "available": true,
      "pitcher_id": "547973",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 64.0,
        "k_percent": 34.6,
        "bb_percent": 11.1,
        "woba": 0.216,
        "xwoba": 0.266,
        "sweet_spot_percent": 20.9,
        "barrel_batted_rate": 11.6,
        "hard_hit_percent": 44.2,
        "avg_best_speed": 76.6438,
        "avg_hyper_speed": 95.6826,
        "whiff_percent": 32.7,
        "swing_percent": 48.1
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.8927,
        "command_and_miss": 1.0329,
        "regression_edge": -1.4286,
        "xwoba_edge": 1.4,
        "barrel_edge": -0.9556,
        "hard_hit_edge": -0.8429,
        "whiff_edge": 1.0,
        "bb_edge": -0.475,
        "pitch_design_score": 0.279
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "547973",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 17,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 17,
          "pitch_usage": 0.0,
          "release_speed": 94.71123024946986,
          "release_spin_rate": 2304.136300190582,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 17,
            "pitch_usage": 0.0,
            "release_speed": 94.71123024946986,
            "release_spin_rate": 2304.136300190582,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 94.7112,
          "release_spin_rate": 2304.1363,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": 0.279,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": 1.9929,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.2916,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9752,
      "strikeout_factor": 1.0491,
      "walk_factor": 1.0171,
      "homer_factor": 1.0307,
      "woba_minus_xwoba": -0.05,
      "regression_flag": "negative_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "547973",
        "espn_id": 30442,
        "player_name": "Aroldis Chapman",
        "team": "BOS",
        "role": "pitcher",
        "espn_rank": 68,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 68,
          "gp_value": 21.0,
          "gp_rank": 166,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 0.4354,
          "era_rank": null,
          "w_value": 0.0,
          "w_rank": 404,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 14.0,
          "sv_rank": 7,
          "hld_value": 0.0,
          "hld_rank": 256,
          "ip_value": 20.2,
          "ip_rank": 369,
          "h_value": 10.0,
          "h_rank": 484,
          "er_value": 1.0,
          "er_rank": 620,
          "hr_value": 0.0,
          "hr_rank": 578,
          "bb_value": 9.0,
          "bb_rank": 332,
          "k_value": 28.0,
          "k_rank": 268,
          "k_per_9_value": 12.193548,
          "k_per_9_rank": 19,
          "whip_value": 0.9193,
          "whip_rank": null,
          "war_value": 1.25,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9888,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9888,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 1.0077,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.0138,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0221,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 10.0,
    "ER": 0,
    "H": 3,
    "BB": 6,
    "SO": 15,
    "HR": 0,
    "ERA": 0.0,
    "WHIP": 0.9,
    "K9": 13.5,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": true,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "547973",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 17,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 17,
    "pitch_usage": 0.0,
    "release_speed": 94.71123024946986,
    "release_spin_rate": 2304.136300190582,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 17,
      "pitch_usage": 0.0,
      "release_speed": 94.71123024946986,
      "release_spin_rate": 2304.136300190582,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 94.7112,
    "release_spin_rate": 2304.1363,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": 0.279,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": 1.9929,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.104,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4508,
    "prior_weight": 0.5492
  },
  "role": "pitcher",
  "player_id": "547973",
  "report_date": "20260618_T",
  "season_year": 2026,
  "rows_used": 21,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 5.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 3.0,
        "BB": 2.0,
        "SO": 7.0,
        "HR": 0.0,
        "BF": 20.0,
        "Pitches": 74.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.6,
        "BB": 0.4,
        "SO": 1.4,
        "HR": 0.0,
        "BF": 4.0,
        "Pitches": 14.8
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 1.0,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.6,
        "BB_per_IP": 0.4,
        "SO_per_IP": 1.4,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 10.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 3.0,
        "BB": 6.0,
        "SO": 15.0,
        "HR": 0.0,
        "BF": 40.0,
        "Pitches": 157.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0,
        "R": 0.0,
        "H": 0.3,
        "BB": 0.6,
        "SO": 1.5,
        "HR": 0.0,
        "BF": 4.0,
        "Pitches": 15.7
      },
      "rates": {
        "ERA": 0.0,
        "WHIP": 0.9,
        "ER_per_IP": 0.0,
        "H_per_IP": 0.3,
        "BB_per_IP": 0.6,
        "SO_per_IP": 1.5,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 21,
      "totals": {
        "IP": 20.2,
        "ER": 1.0,
        "R": 1.0,
        "H": 10.0,
        "BB": 9.0,
        "SO": 28.0,
        "HR": 0.0,
        "BF": 81.0,
        "Pitches": 312.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.0476,
        "R": 0.0476,
        "H": 0.4762,
        "BB": 0.4286,
        "SO": 1.3333,
        "HR": 0.0,
        "BF": 3.8571,
        "Pitches": 14.8571
      },
      "rates": {
        "ERA": 0.4355,
        "WHIP": 0.9194,
        "ER_per_IP": 0.04839,
        "H_per_IP": 0.48387,
        "BB_per_IP": 0.43548,
        "SO_per_IP": 1.35484,
        "HR_per_IP": 0.0
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.279,
    "predicted_H": 0.748,
    "predicted_BB": 0.415,
    "predicted_SO": 1.158,
    "predicted_HR": 0.08,
    "predicted_ERA": 2.5152,
    "predicted_WHIP": 1.1621
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.582,
  "form_weight": 0.418,
  "form_reliability": 0.4508,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.104,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4508,
    "prior_weight": 0.5492
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.279,
      "final": 0.1166,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 0.0,
      "form": 0.748,
      "final": 0.3126,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.415,
      "final": 0.1735,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 1.158,
      "final": 0.484,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.08,
      "final": 0.0334,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 2.5152,
      "final": 2.5152,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.1621,
      "final": 1.1621,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherGarrett Whitlock
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.1495
ESPN Rank215
Movement AvailableTrue
Primary Pitch-
Movement Score0.0223
Avg Velo90.1279
Avg Spin2107.6779
HB Inches0
IVB Inches0
Release Extension0
Pre IP1
Pre ER0
Pre H1
Pre BB0
Pre SO0
Season ERA2.9077
Season WHIP1.0615
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "BOS",
    "games": 80,
    "wins": 31,
    "losses": 49,
    "win_pct": 0.3875,
    "runs_scored": 302.0,
    "runs_allowed": 329.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3375,
    "avg_runs_scored": 3.775,
    "avg_runs_allowed": 4.1125,
    "offense_index": 0.8371,
    "defense_index": 1.0965,
    "current_streak": "L3",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 3.1,
      "avg_runs_allowed": 3.9,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.2418
  },
  "opponent": {
    "team": "TOR",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 334.0,
    "runs_allowed": 329.0,
    "run_differential": 5.0,
    "run_differential_per_game": 0.0625,
    "avg_runs_scored": 4.175,
    "avg_runs_allowed": 4.1125,
    "offense_index": 0.9258,
    "defense_index": 1.0965,
    "current_streak": "W2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 3.9,
      "run_differential": 3.0
    },
    "available": true,
    "quality_score": 0.032
  },
  "edges": {
    "quality_edge": -0.2738,
    "offense_edge": -0.1629,
    "opponent_offense_edge": -0.0742,
    "defense_strength": 0.0965,
    "opponent_defense_weakness": -0.0965,
    "recent_win_pct_edge": -0.4
  },
  "player_factors": {
    "ip": 0.9949,
    "run_prevention": 0.9922,
    "strikeout": 0.9977
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "676477",
    "profile": {
      "available": true,
      "pitcher_id": "676477",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 80.0,
        "k_percent": 30.7,
        "bb_percent": 6.8,
        "woba": 0.267,
        "xwoba": 0.308,
        "sweet_spot_percent": 34.5,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 30.9,
        "avg_best_speed": 77.0186,
        "avg_hyper_speed": 93.4064,
        "whiff_percent": 29.8,
        "swing_percent": 54.2
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": 0.4036,
        "command_and_miss": 0.8521,
        "regression_edge": -1.1714,
        "xwoba_edge": 0.2,
        "barrel_edge": 0.0,
        "hard_hit_edge": 1.0571,
        "whiff_edge": 0.5857,
        "bb_edge": 0.6,
        "pitch_design_score": 0.0223
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "676477",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 11,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 11,
          "pitch_usage": 0.0,
          "release_speed": 90.12792508309943,
          "release_spin_rate": 2107.6778829395935,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 11,
            "pitch_usage": 0.0,
            "release_speed": 90.12792508309943,
            "release_spin_rate": 2107.6778829395935,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 90.1279,
          "release_spin_rate": 2107.6779,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": 0.0223,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": 0.1596,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.1495,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.9873,
      "strikeout_factor": 1.0316,
      "walk_factor": 0.9784,
      "homer_factor": 0.9783,
      "woba_minus_xwoba": -0.041,
      "regression_flag": "negative_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "676477",
        "espn_id": 39674,
        "player_name": "Garrett Whitlock",
        "team": "BOS",
        "role": "pitcher",
        "espn_rank": 215,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 215,
          "gp_value": 22.0,
          "gp_rank": 157,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 2.9076,
          "era_rank": null,
          "w_value": 4.0,
          "w_rank": 65,
          "l_value": 1.0,
          "l_rank": 275,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 9.0,
          "hld_rank": 31,
          "ip_value": 21.2,
          "ip_rank": 362,
          "h_value": 17.0,
          "h_rank": 386,
          "er_value": 7.0,
          "er_rank": 431,
          "hr_value": 2.0,
          "hr_rank": 335,
          "bb_value": 6.0,
          "bb_rank": 436,
          "k_value": 27.0,
          "k_rank": 277,
          "k_per_9_value": 11.2153845,
          "k_per_9_rank": 20,
          "whip_value": 1.0615,
          "whip_rank": null,
          "war_value": 0.39,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 0.0,
        "factor": 0.9943,
        "adjusted": 0
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9943,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.9903,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 0.9902,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0142,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.2,
    "ER": 3,
    "H": 7,
    "BB": 1,
    "SO": 14,
    "HR": 0,
    "ERA": 2.793103448275862,
    "WHIP": 0.8275862068965518,
    "K9": 13.03448275862069,
    "HR9": 0.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": false
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "676477",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 11,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 11,
    "pitch_usage": 0.0,
    "release_speed": 90.12792508309943,
    "release_spin_rate": 2107.6778829395935,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 11,
      "pitch_usage": 0.0,
      "release_speed": 90.12792508309943,
      "release_spin_rate": 2107.6778829395935,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 90.1279,
    "release_spin_rate": 2107.6779,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": 0.0223,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": 0.1596,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.303,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4625,
    "prior_weight": 0.5375
  },
  "role": "pitcher",
  "player_id": "676477",
  "report_date": "20260618_T",
  "season_year": 2026,
  "rows_used": 22,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.1,
        "ER": 1.0,
        "R": 1.0,
        "H": 4.0,
        "BB": 0.0,
        "SO": 5.0,
        "HR": 0.0,
        "BF": 17.0,
        "Pitches": 61.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.2,
        "R": 0.2,
        "H": 0.8,
        "BB": 0.0,
        "SO": 1.0,
        "HR": 0.0,
        "BF": 3.4,
        "Pitches": 12.2
      },
      "rates": {
        "ERA": 2.0769,
        "WHIP": 0.9231,
        "ER_per_IP": 0.23077,
        "H_per_IP": 0.92308,
        "BB_per_IP": 0.0,
        "SO_per_IP": 1.15385,
        "HR_per_IP": 0.0
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.2,
        "ER": 3.0,
        "R": 3.0,
        "H": 7.0,
        "BB": 1.0,
        "SO": 14.0,
        "HR": 0.0,
        "BF": 37.0,
        "Pitches": 138.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3,
        "R": 0.3,
        "H": 0.7,
        "BB": 0.1,
        "SO": 1.4,
        "HR": 0.0,
        "BF": 3.7,
        "Pitches": 13.8
      },
      "rates": {
        "ERA": 2.7931,
        "WHIP": 0.8276,
        "ER_per_IP": 0.31034,
        "H_per_IP": 0.72414,
        "BB_per_IP": 0.10345,
        "SO_per_IP": 1.44828,
        "HR_per_IP": 0.0
      }
    },
    "season": {
      "games": 22,
      "totals": {
        "IP": 21.2,
        "ER": 7.0,
        "R": 8.0,
        "H": 17.0,
        "BB": 6.0,
        "SO": 27.0,
        "HR": 2.0,
        "BF": 88.0,
        "Pitches": 347.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.3182,
        "R": 0.3636,
        "H": 0.7727,
        "BB": 0.2727,
        "SO": 1.2273,
        "HR": 0.0909,
        "BF": 4.0,
        "Pitches": 15.7727
      },
      "rates": {
        "ERA": 2.9077,
        "WHIP": 1.0615,
        "ER_per_IP": 0.32308,
        "H_per_IP": 0.78462,
        "BB_per_IP": 0.27692,
        "SO_per_IP": 1.24615,
        "HR_per_IP": 0.09231
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.397,
    "predicted_H": 0.905,
    "predicted_BB": 0.238,
    "predicted_SO": 1.094,
    "predicted_HR": 0.087,
    "predicted_ERA": 3.5765,
    "predicted_WHIP": 1.143
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.5771,
  "form_weight": 0.4229,
  "form_reliability": 0.4625,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 4.303,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.4625,
    "prior_weight": 0.5375
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 0.0,
      "form": 0.397,
      "final": 0.1679,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 1.0,
      "form": 0.905,
      "final": 0.9598,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.238,
      "final": 0.1007,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 1.094,
      "final": 0.4627,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.087,
      "final": 0.0368,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 3.5765,
      "final": 3.5765,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.143,
      "final": 1.143,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
FieldValue
PitcherJustin Slaten
RoleMiddle Reliever
Projection Source-
Savant Quality Score0.0473
ESPN Rank652
Movement AvailableTrue
Primary Pitch-
Movement Score0.1636
Avg Velo92.6503
Avg Spin2527.9024
HB Inches0
IVB Inches0
Release Extension0
Pre IP1
Pre ER1
Pre H2
Pre BB0
Pre SO0
Season ERA6.7500
Season WHIP1.5750
Role Avg IP-
Recent Avg IP-
Last Start IP-
Team Form Snapshot
{
  "method": "team_form_snapshot",
  "role": "pitcher",
  "team": {
    "team": "BOS",
    "games": 80,
    "wins": 31,
    "losses": 49,
    "win_pct": 0.3875,
    "runs_scored": 302.0,
    "runs_allowed": 329.0,
    "run_differential": -27.0,
    "run_differential_per_game": -0.3375,
    "avg_runs_scored": 3.775,
    "avg_runs_allowed": 4.1125,
    "offense_index": 0.8371,
    "defense_index": 1.0965,
    "current_streak": "L3",
    "recent": {
      "games": 10,
      "wins": 2,
      "losses": 8,
      "win_pct": 0.2,
      "avg_runs_scored": 3.1,
      "avg_runs_allowed": 3.9,
      "run_differential": -8.0
    },
    "available": true,
    "quality_score": -0.2418
  },
  "opponent": {
    "team": "TOR",
    "games": 80,
    "wins": 39,
    "losses": 41,
    "win_pct": 0.4875,
    "runs_scored": 334.0,
    "runs_allowed": 329.0,
    "run_differential": 5.0,
    "run_differential_per_game": 0.0625,
    "avg_runs_scored": 4.175,
    "avg_runs_allowed": 4.1125,
    "offense_index": 0.9258,
    "defense_index": 1.0965,
    "current_streak": "W2",
    "recent": {
      "games": 10,
      "wins": 6,
      "losses": 4,
      "win_pct": 0.6,
      "avg_runs_scored": 4.2,
      "avg_runs_allowed": 3.9,
      "run_differential": 3.0
    },
    "available": true,
    "quality_score": 0.032
  },
  "edges": {
    "quality_edge": -0.2738,
    "offense_edge": -0.1629,
    "opponent_offense_edge": -0.0742,
    "defense_strength": 0.0965,
    "opponent_defense_weakness": -0.0965,
    "recent_win_pct_edge": -0.4
  },
  "player_factors": {
    "ip": 0.9949,
    "run_prevention": 0.9922,
    "strikeout": 0.9977
  },
  "savant_pitcher_quality_adjustment": {
    "applied": true,
    "pitcher_id": "686580",
    "profile": {
      "available": true,
      "pitcher_id": "686580",
      "player_name": "",
      "source": "all_players_stats.csv embedded Savant pitcher features",
      "source_url": null,
      "metrics": {
        "pa": 37.0,
        "k_percent": 27.9,
        "bb_percent": 8.2,
        "woba": 0.374,
        "xwoba": 0.304,
        "sweet_spot_percent": 33.3,
        "barrel_batted_rate": 10.3,
        "hard_hit_percent": 46.2,
        "avg_best_speed": 78.7243,
        "avg_hyper_speed": 94.9418,
        "whiff_percent": 27.4,
        "swing_percent": 48.1
      },
      "league_medians": {
        "pa": 70.0,
        "k_percent": 22.5,
        "bb_percent": 9.2,
        "woba": 0.312,
        "xwoba": 0.315,
        "sweet_spot_percent": 33.0,
        "barrel_batted_rate": 7.3,
        "hard_hit_percent": 38.3,
        "avg_best_speed": 77.8423,
        "avg_hyper_speed": 94.021,
        "whiff_percent": 25.7,
        "swing_percent": 47.2
      },
      "components": {
        "contact_quality": -0.4168,
        "command_and_miss": 0.4821,
        "regression_edge": 2.0,
        "xwoba_edge": 0.3143,
        "barrel_edge": -0.6667,
        "hard_hit_edge": -1.1286,
        "whiff_edge": 0.2429,
        "bb_edge": 0.25,
        "pitch_design_score": 0.1636
      },
      "pitch_movement_profile": {
        "available": true,
        "pitcher_id": "686580",
        "player_name": null,
        "source": "all_players_stats.csv embedded Savant pitcher movement features",
        "total_pitches": 28,
        "primary_pitch": {
          "pitch_type": null,
          "pitch_name": null,
          "pitches": 28,
          "pitch_usage": 0.0,
          "release_speed": 92.65026433843074,
          "release_spin_rate": 2527.902351533915,
          "spin_axis": null,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": null,
          "release_pos_x": null,
          "release_pos_z": null,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "pitch_mix": [
          {
            "pitch_type": null,
            "pitch_name": null,
            "pitches": 28,
            "pitch_usage": 0.0,
            "release_speed": 92.65026433843074,
            "release_spin_rate": 2527.902351533915,
            "spin_axis": null,
            "horizontal_break_inches": 0.0,
            "induced_vertical_break_inches": 0.0,
            "vertical_break_with_gravity_inches": null,
            "release_pos_x": null,
            "release_pos_z": null,
            "release_extension": 0.0,
            "arm_angle": 0.0,
            "whiff_percent": 0.0,
            "xwoba": 0.0,
            "hard_hit_percent": 0.0
          }
        ],
        "summary": {
          "release_speed": 92.6503,
          "release_spin_rate": 2527.9024,
          "spin_axis": 0.0,
          "horizontal_break_inches": 0.0,
          "induced_vertical_break_inches": 0.0,
          "vertical_break_with_gravity_inches": 0.0,
          "release_pos_x": 0.0,
          "release_pos_z": 0.0,
          "release_extension": 0.0,
          "arm_angle": 0.0,
          "whiff_percent": 0.0,
          "xwoba": 0.0,
          "hard_hit_percent": 0.0
        },
        "components": {
          "movement_score": 0.1636,
          "horizontal_break_edge": 0.0,
          "induced_vertical_break_edge": 0.0,
          "extension_edge": 0.0,
          "velocity_edge": 1.1685,
          "whiff_edge": 0.0,
          "xwoba_edge": -0.0,
          "hard_hit_edge": -0.0
        },
        "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
      },
      "quality_score": 0.0473,
      "sample_weight": 0.45,
      "run_prevention_factor": 0.996,
      "strikeout_factor": 1.0183,
      "walk_factor": 0.991,
      "homer_factor": 1.0401,
      "woba_minus_xwoba": 0.07,
      "regression_flag": "positive_pitcher_regression",
      "espn_rank": {
        "available": true,
        "player_id": "686580",
        "espn_id": 4917925,
        "player_name": "Justin Slaten",
        "team": "BOS",
        "role": "pitcher",
        "espn_rank": 652,
        "espn_total_ranked": 701,
        "metrics": {
          "espn_rank": 652,
          "gp_value": 15.0,
          "gp_rank": 228,
          "gs_value": 0.0,
          "gs_rank": 288,
          "qs_value": 0.0,
          "qs_rank": 175,
          "era_value": 6.75,
          "era_rank": null,
          "w_value": 0.0,
          "w_rank": 404,
          "l_value": 3.0,
          "l_rank": 110,
          "sv_value": 0.0,
          "sv_rank": 172,
          "hld_value": 7.0,
          "hld_rank": 54,
          "ip_value": 13.1,
          "ip_rank": 448,
          "h_value": 16.0,
          "h_rank": 401,
          "er_value": 10.0,
          "er_rank": 324,
          "hr_value": 4.0,
          "hr_rank": 199,
          "bb_value": 5.0,
          "bb_rank": 474,
          "k_value": 17.0,
          "k_rank": 386,
          "k_per_9_value": 11.475,
          "k_per_9_rank": 23,
          "whip_value": 1.575,
          "whip_rank": null,
          "war_value": -0.55,
          "war_rank": null
        },
        "source": "espn_statistics_byathlete"
      }
    },
    "adjusted_fields": {
      "predicted_ER": {
        "original": 1.0,
        "factor": 0.9982,
        "adjusted": 1
      },
      "predicted_H": {
        "original": 0.0,
        "factor": 0.9982,
        "adjusted": 0
      },
      "predicted_BB": {
        "original": 0.0,
        "factor": 0.996,
        "adjusted": 0
      },
      "predicted_HR": {
        "original": 0.0,
        "factor": 1.018,
        "adjusted": 0
      },
      "predicted_SO": {
        "original": 2.0,
        "factor": 1.0082,
        "adjusted": 2
      }
    }
  }
}
Recent Form Pitching
{
  "hitting": {
    "AB": 0,
    "H": 0,
    "HR": 0,
    "RBI": 0,
    "R": 0,
    "BB": 0,
    "SO": 0,
    "2B": 0,
    "3B": 0,
    "AVG": 0,
    "OBP": 0,
    "SLG": 0,
    "OPS": 0,
    "games_played": 0,
    "hot_streak": false,
    "cold_streak": true,
    "trend": "stable"
  },
  "pitching": {
    "IP": 9.0,
    "ER": 10,
    "H": 14,
    "BB": 3,
    "SO": 11,
    "HR": 4,
    "ERA": 10.0,
    "WHIP": 1.8888888888888888,
    "K9": 11.0,
    "HR9": 4.0,
    "games_pitched": 10,
    "quality_starts": 0,
    "dominant_form": false,
    "struggling_form": true
  },
  "fielding": {
    "errors": 0,
    "assists": 0,
    "games_fielded": 10,
    "error_prone": false
  },
  "games_count": 10,
  "latest_game_date": "2026-06-13T00:00:00"
}
Savant Pitch Movement Profile
{
  "available": true,
  "pitcher_id": "686580",
  "player_name": null,
  "source": "all_players_stats.csv embedded Savant pitcher movement features",
  "total_pitches": 28,
  "primary_pitch": {
    "pitch_type": null,
    "pitch_name": null,
    "pitches": 28,
    "pitch_usage": 0.0,
    "release_speed": 92.65026433843074,
    "release_spin_rate": 2527.902351533915,
    "spin_axis": null,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": null,
    "release_pos_x": null,
    "release_pos_z": null,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "pitch_mix": [
    {
      "pitch_type": null,
      "pitch_name": null,
      "pitches": 28,
      "pitch_usage": 0.0,
      "release_speed": 92.65026433843074,
      "release_spin_rate": 2527.902351533915,
      "spin_axis": null,
      "horizontal_break_inches": 0.0,
      "induced_vertical_break_inches": 0.0,
      "vertical_break_with_gravity_inches": null,
      "release_pos_x": null,
      "release_pos_z": null,
      "release_extension": 0.0,
      "arm_angle": 0.0,
      "whiff_percent": 0.0,
      "xwoba": 0.0,
      "hard_hit_percent": 0.0
    }
  ],
  "summary": {
    "release_speed": 92.6503,
    "release_spin_rate": 2527.9024,
    "spin_axis": 0.0,
    "horizontal_break_inches": 0.0,
    "induced_vertical_break_inches": 0.0,
    "vertical_break_with_gravity_inches": 0.0,
    "release_pos_x": 0.0,
    "release_pos_z": 0.0,
    "release_extension": 0.0,
    "arm_angle": 0.0,
    "whiff_percent": 0.0,
    "xwoba": 0.0,
    "hard_hit_percent": 0.0
  },
  "components": {
    "movement_score": 0.1636,
    "horizontal_break_edge": 0.0,
    "induced_vertical_break_edge": 0.0,
    "extension_edge": 0.0,
    "velocity_edge": 1.1685,
    "whiff_edge": 0.0,
    "xwoba_edge": -0.0,
    "hard_hit_edge": -0.0
  },
  "spin_efficiency_note": "Savant statcast CSV provides spin rate and spin axis here; true spin efficiency is not exposed in this feed."
}
Player Form Blend
{
  "method": "weighted_recent_form",
  "description": "Recent form with overlapping-window de-duplication and Bayesian league-prior shrinkage for small samples",
  "weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "effective_weights": {
    "last_5": 0.45,
    "last_10": 0.35,
    "season": 0.2
  },
  "shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 2.648,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.3462,
    "prior_weight": 0.6538
  },
  "role": "pitcher",
  "player_id": "686580",
  "report_date": "20260618_T",
  "season_year": 2026,
  "rows_used": 15,
  "reference_playing_time": 1.0,
  "windows": {
    "last_5": {
      "games": 5,
      "totals": {
        "IP": 4.2,
        "ER": 6.0,
        "R": 6.0,
        "H": 8.0,
        "BB": 2.0,
        "SO": 5.0,
        "HR": 2.0,
        "BF": 24.0,
        "Pitches": 85.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 1.2,
        "R": 1.2,
        "H": 1.6,
        "BB": 0.4,
        "SO": 1.0,
        "HR": 0.4,
        "BF": 4.8,
        "Pitches": 17.0
      },
      "rates": {
        "ERA": 11.5714,
        "WHIP": 2.1429,
        "ER_per_IP": 1.28571,
        "H_per_IP": 1.71429,
        "BB_per_IP": 0.42857,
        "SO_per_IP": 1.07143,
        "HR_per_IP": 0.42857
      }
    },
    "last_10": {
      "games": 10,
      "totals": {
        "IP": 9.0,
        "ER": 10.0,
        "R": 10.0,
        "H": 14.0,
        "BB": 3.0,
        "SO": 11.0,
        "HR": 4.0,
        "BF": 44.0,
        "Pitches": 164.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 1.0,
        "R": 1.0,
        "H": 1.4,
        "BB": 0.3,
        "SO": 1.1,
        "HR": 0.4,
        "BF": 4.4,
        "Pitches": 16.4
      },
      "rates": {
        "ERA": 10.0,
        "WHIP": 1.8889,
        "ER_per_IP": 1.11111,
        "H_per_IP": 1.55556,
        "BB_per_IP": 0.33333,
        "SO_per_IP": 1.22222,
        "HR_per_IP": 0.44444
      }
    },
    "season": {
      "games": 15,
      "totals": {
        "IP": 13.1,
        "ER": 10.0,
        "R": 11.0,
        "H": 16.0,
        "BB": 5.0,
        "SO": 17.0,
        "HR": 4.0,
        "BF": 61.0,
        "Pitches": 235.0
      },
      "per_game": {
        "IP": 1.0,
        "ER": 0.6667,
        "R": 0.7333,
        "H": 1.0667,
        "BB": 0.3333,
        "SO": 1.1333,
        "HR": 0.2667,
        "BF": 4.0667,
        "Pitches": 15.6667
      },
      "rates": {
        "ERA": 6.75,
        "WHIP": 1.575,
        "ER_per_IP": 0.75,
        "H_per_IP": 1.2,
        "BB_per_IP": 0.375,
        "SO_per_IP": 1.275,
        "HR_per_IP": 0.3
      }
    }
  },
  "weighted_prediction": {
    "predicted_IP": 1.0,
    "predicted_ER": 0.714,
    "predicted_H": 1.175,
    "predicted_BB": 0.371,
    "predicted_SO": 1.016,
    "predicted_HR": 0.237,
    "predicted_ERA": 6.4293,
    "predicted_WHIP": 1.546
  }
}
Model Form Blend Trace
{
  "requested_model_weight": 0.35,
  "requested_form_weight": 0.65,
  "model_weight": 0.6262,
  "form_weight": 0.3738,
  "form_reliability": 0.3462,
  "form_shrinkage": {
    "method": "bayesian_league_prior",
    "sample_size": 2.648,
    "sample_unit": "starter_equivalent_games",
    "prior_size": 5.0,
    "data_weight": 0.3462,
    "prior_weight": 0.6538
  },
  "applied_metrics": {
    "predicted_IP": {
      "model": 1.0,
      "form": 1.0,
      "final": 1.0,
      "source": "model_form_blend"
    },
    "predicted_ER": {
      "model": 1.0,
      "form": 0.714,
      "final": 0.8931,
      "source": "model_form_blend"
    },
    "predicted_H": {
      "model": 2.0,
      "form": 1.175,
      "final": 1.6916,
      "source": "model_form_blend"
    },
    "predicted_BB": {
      "model": 0.0,
      "form": 0.371,
      "final": 0.1387,
      "source": "model_form_blend"
    },
    "predicted_SO": {
      "model": 0.0,
      "form": 1.016,
      "final": 0.3797,
      "source": "model_form_blend"
    },
    "predicted_HR": {
      "model": 0.0,
      "form": 0.237,
      "final": 0.0886,
      "source": "model_form_blend"
    },
    "predicted_ERA": {
      "model": null,
      "form": 6.4293,
      "final": 6.4293,
      "source": "form_only"
    },
    "predicted_WHIP": {
      "model": null,
      "form": 1.546,
      "final": 1.546,
      "source": "form_only"
    }
  }
}
Inning Pitch Details
{
  "available": false,
  "reason": "No per-inning pitch ledger was stored by the simulation.",
  "display_fallback": "Use player_form_blend windows for recent workload and pitch count."
}
Wilyer Abreu (677800) · BATTER · RF · Team BOS
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 247
All-history rows before 20260618: 247
System season_avg: 0.2780
Data season_avg (2026 season-to-date): 0.2804
Diff (system - data): -0.0024
System opponent_avg: 0.3330

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2290.0000.000Hitting_2B0.2061.000-0.206-1.000
predicted_3B0.0140.0000.000Hitting_3B0.0160.000-0.0160.000
predicted_AB4.1904.0004.000Hitting_AB3.9275.0000.073-1.000
predicted_AVG0.2490.2500.250Hitting_AVG0.2800.400-0.030-0.150
predicted_BB0.3710.0000.000Hitting_BB0.4010.000-0.4010.000
predicted_CS-0.0000.000BaseRunning_CS0.0120.000-0.0120.000
predicted_H1.0401.0001.000Hitting_H1.1012.000-0.101-1.000
predicted_HR0.1500.0000.000Hitting_HR0.1130.000-0.1130.000
predicted_OBP0.3280.2500.250Hitting_OBP0.3450.400-0.095-0.150
predicted_R0.4430.0000.000Hitting_R0.4570.000-0.4570.000
predicted_RBI0.5800.0001.000Hitting_RBI0.4450.000-0.4450.000
predicted_SLG0.4430.2500.250Hitting_SLG0.4280.600-0.178-0.350
predicted_SO0.8570.0001.000Hitting_SO0.8141.000-0.814-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics0
Deboosted Metrics9
Better Metrics1
Worse Metrics8
Biggest Boost-
Biggest Deboostpredicted_SO: 0.8570 -> 0.0000 (deboost -0.8570, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend32121predicted_AVG: 0.2490 -> 0.2637 (boost 0.0147, better)predicted_AB: 4.1900 -> 4.0811 (deboost -0.1089, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot40404-predicted_H: 1.0722 -> 1.0218 (deboost -0.0504, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62415predicted_RBI: 0.5417 -> 1.0000 (boost 0.4583, better)predicted_BB: 0.3521 -> 0.0000 (deboost -0.3521, worse)AB rounded to 4 (raw=4.19), rates preserved: AVG=0.244 HR/AB=0.032
5consistency_constraints10101-predicted_R: 0.4179 -> 0.0000 (deboost -0.4179, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context20202-predicted_SLG: 0.4212 -> 0.2500 (deboost -0.1712, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference20211-predicted_RBI: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final22020predicted_SLG: 0.2500 -> 0.4212 (boost 0.1712, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "677800",
  "player_name": "Wilyer Abreu",
  "position": "RF",
  "team": "BOS",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.229,
        "predicted_3B": 0.014,
        "predicted_AB": 4.19,
        "predicted_AVG": 0.249,
        "predicted_BB": 0.371,
        "predicted_H": 1.04,
        "predicted_HR": 0.15,
        "predicted_OBP": 0.328,
        "predicted_R": 0.443,
        "predicted_RBI": 0.58,
        "predicted_SLG": 0.443,
        "predicted_SO": 0.857
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2684,
        "predicted_3B": 0.0119,
        "predicted_AB": 4.0811,
        "predicted_AVG": 0.2637,
        "predicted_BB": 0.3574,
        "predicted_H": 1.0722,
        "predicted_HBP": 0.003,
        "predicted_HR": 0.1411,
        "predicted_OBP": 0.3308,
        "predicted_R": 0.454,
        "predicted_RBI": 0.5885,
        "predicted_SLG": 0.4538,
        "predicted_SO": 0.871
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.229,
          "after": 0.2684,
          "delta": 0.0394,
          "percent_delta": 0.1721,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.014,
          "after": 0.0119,
          "delta": -0.0021,
          "percent_delta": -0.15,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.19,
          "after": 4.0811,
          "delta": -0.1089,
          "percent_delta": -0.026,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.249,
          "after": 0.2637,
          "delta": 0.0147,
          "percent_delta": 0.059,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.371,
          "after": 0.3574,
          "delta": -0.0136,
          "percent_delta": -0.0367,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.04,
          "after": 1.0722,
          "delta": 0.0322,
          "percent_delta": 0.031,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.15,
          "after": 0.1411,
          "delta": -0.0089,
          "percent_delta": -0.0593,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.328,
          "after": 0.3308,
          "delta": 0.0028,
          "percent_delta": 0.0085,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.443,
          "after": 0.454,
          "delta": 0.011,
          "percent_delta": 0.0248,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.58,
          "after": 0.5885,
          "delta": 0.0085,
          "percent_delta": 0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.443,
          "after": 0.4538,
          "delta": 0.0108,
          "percent_delta": 0.0244,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.857,
          "after": 0.871,
          "delta": 0.014,
          "percent_delta": 0.0163,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.249,
          "after": 0.2637,
          "delta": 0.0147,
          "percent_delta": 0.059,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.19,
          "after": 4.0811,
          "delta": -0.1089,
          "percent_delta": -0.026,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 70
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2684,
        "predicted_3B": 0.0119,
        "predicted_AB": 4.0811,
        "predicted_AVG": 0.2504,
        "predicted_BB": 0.3521,
        "predicted_H": 1.0218,
        "predicted_HBP": 0.003,
        "predicted_HR": 0.135,
        "predicted_OBP": 0.3099,
        "predicted_R": 0.4179,
        "predicted_RBI": 0.5417,
        "predicted_SLG": 0.4212,
        "predicted_SO": 0.8838
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2684,
          "after": 0.2684,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0119,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0811,
          "after": 4.0811,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2637,
          "after": 0.2504,
          "delta": -0.0133,
          "percent_delta": -0.0504,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3574,
          "after": 0.3521,
          "delta": -0.0053,
          "percent_delta": -0.0148,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0722,
          "after": 1.0218,
          "delta": -0.0504,
          "percent_delta": -0.047,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.003,
          "after": 0.003,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1411,
          "after": 0.135,
          "delta": -0.0061,
          "percent_delta": -0.0432,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3308,
          "after": 0.3099,
          "delta": -0.0209,
          "percent_delta": -0.0632,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.454,
          "after": 0.4179,
          "delta": -0.0361,
          "percent_delta": -0.0795,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5885,
          "after": 0.5417,
          "delta": -0.0468,
          "percent_delta": -0.0795,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4538,
          "after": 0.4212,
          "delta": -0.0326,
          "percent_delta": -0.0718,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.871,
          "after": 0.8838,
          "delta": 0.0128,
          "percent_delta": 0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 0,
        "deboosted_metrics": 4,
        "better_metrics": 0,
        "worse_metrics": 4,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0722,
          "after": 1.0218,
          "delta": -0.0504,
          "percent_delta": -0.047,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.19), rates preserved: AVG=0.244 HR/AB=0.032",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2684,
          "after": 0.0,
          "delta": -0.2684,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0119,
          "after": 0.0,
          "delta": -0.0119,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0811,
          "after": 4.0,
          "delta": -0.0811,
          "percent_delta": -0.0199,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3521,
          "after": 0.0,
          "delta": -0.3521,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0218,
          "after": 1.0,
          "delta": -0.0218,
          "percent_delta": -0.0213,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.003,
          "after": 0.0,
          "delta": -0.003,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.135,
          "after": 0.0,
          "delta": -0.135,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5417,
          "after": 1.0,
          "delta": 0.4583,
          "percent_delta": 0.846,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8838,
          "after": 1.0,
          "delta": 0.1162,
          "percent_delta": 0.1315,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.5417,
          "after": 1.0,
          "delta": 0.4583,
          "percent_delta": 0.846,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.3521,
          "after": 0.0,
          "delta": -0.3521,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4179,
          "after": 0.0,
          "delta": -0.4179,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4179,
          "after": 0.0,
          "delta": -0.4179,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2504,
          "after": 0.25,
          "delta": -0.0004,
          "percent_delta": -0.0016,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3099,
          "after": 0.25,
          "delta": -0.0599,
          "percent_delta": -0.1933,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4212,
          "after": 0.25,
          "delta": -0.1712,
          "percent_delta": -0.4065,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4212,
          "after": 0.25,
          "delta": -0.1712,
          "percent_delta": -0.4065,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2504,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3099,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_RF": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4212,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2504,
          "delta": 0.0004,
          "percent_delta": 0.0015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3099,
          "delta": 0.0599,
          "percent_delta": 0.2397,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4212,
          "delta": 0.1712,
          "percent_delta": 0.685,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4212,
          "delta": 0.1712,
          "percent_delta": 0.685,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.229,
        "after": 0.0,
        "delta": -0.229,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.014,
        "after": 0.0,
        "delta": -0.014,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.19,
        "after": 4.0,
        "delta": -0.19,
        "percent_delta": -0.0453,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.249,
        "after": 0.2504,
        "delta": 0.0014,
        "percent_delta": 0.0056,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.371,
        "after": 0.0,
        "delta": -0.371,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.04,
        "after": 1.0,
        "delta": -0.04,
        "percent_delta": -0.0385,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.15,
        "after": 0.0,
        "delta": -0.15,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.328,
        "after": 0.3099,
        "delta": -0.0181,
        "percent_delta": -0.0552,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.443,
        "after": 0.0,
        "delta": -0.443,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.58,
        "after": 0.0,
        "delta": -0.58,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.443,
        "after": 0.4212,
        "delta": -0.0218,
        "percent_delta": -0.0492,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.857,
        "after": 0.0,
        "delta": -0.857,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 0,
      "deboosted_metrics": 9,
      "better_metrics": 1,
      "worse_metrics": 8,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 0.857,
        "after": 0.0,
        "delta": -0.857,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.229-
predicted_3B0.014-
predicted_AB4.190-
predicted_AVG0.249-
predicted_BB0.371-
predicted_H1.040-
predicted_HR0.150-
predicted_OBP0.328-
predicted_R0.443-
predicted_RBI0.580-
predicted_SLG0.443-
predicted_SO0.857-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2680.039
predicted_3B0.012-0.002
predicted_AB4.081-0.109
predicted_AVG0.2640.015
predicted_BB0.357-0.014
predicted_H1.0720.032
predicted_HBP0.003-
predicted_HR0.141-0.009
predicted_OBP0.3310.003
predicted_R0.4540.011
predicted_RBI0.5890.009
predicted_SLG0.4540.011
predicted_SO0.8710.014
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2680.000
predicted_3B0.0120.000
predicted_AB4.0810.000
predicted_AVG0.250-0.013
predicted_BB0.352-0.005
predicted_H1.022-0.050
predicted_HBP0.0030.000
predicted_HR0.135-0.006
predicted_OBP0.310-0.021
predicted_R0.418-0.036
predicted_RBI0.542-0.047
predicted_SLG0.421-0.033
predicted_SO0.8840.013
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.19), rates preserved: AVG=0.244 HR/AB=0.032

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.268
predicted_3B0.000-0.012
predicted_AB4.000-0.081
predicted_AVG0.250-0.000
predicted_BB0.000-0.352
predicted_H1.000-0.022
predicted_HR0.000-0.135
predicted_OBP0.250-0.060
predicted_R0.000-0.418
predicted_RBI1.0000.458
predicted_SLG0.250-0.171
predicted_SO1.0000.116
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 70
Reference playing time: 4.190
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.0007.0003.0000.0001.0005.0003.0002.0004.0000.35000.39130.65000.35000.05000.25000.10000.2000
last_100.2010-40.00010.0004.0000.0001.0006.0004.0002.00011.0000.25000.27910.42500.25000.02500.15000.05000.2750
season0.6070-273.00076.00016.0001.0008.00034.00031.00026.00060.0000.27840.33770.43220.27840.02930.12450.09520.2198
Weighted Prediction From Real Data
MetricValue
predicted_2B0.3220
predicted_3B0.0090
predicted_AB3.9330
predicted_AVG0.2837
predicted_BB0.3390
predicted_H1.1160
predicted_HBP0.0030
predicted_HR0.1290
predicted_OBP0.3346
predicted_R0.4690
predicted_RBI0.6000
predicted_SLG0.4685
predicted_SO0.8900
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.22900.32200.2684model_form_blend
predicted_3B0.01400.00900.0119model_form_blend
predicted_AB4.19003.93304.0811model_form_blend
predicted_AVG0.24900.28370.2637model_form_blend
predicted_BB0.37100.33900.3574model_form_blend
predicted_H1.04001.11601.0722model_form_blend
predicted_HBP-0.00300.0030form_only
predicted_HR0.15000.12900.1411model_form_blend
predicted_OBP0.32800.33460.3308model_form_blend
predicted_R0.44300.46900.4540model_form_blend
predicted_RBI0.58000.60000.5885model_form_blend
predicted_SLG0.44300.46850.4538model_form_blend
predicted_SO0.85700.89000.8710model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date247
Season rows before report date247
Report year2026
Profile rows used70
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO0
SF0
HBP0
season_avg0.278

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B1
Hitting_3B0
Hitting_AB5
Hitting_AVG0.4
Hitting_BB0
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB3
Hitting_battingOrder3
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedRF
gameID20260617_TOR@BOS
game_typefull
mlbID677800
playerID677800
playerNameWilyer Abreu
posRF
startedTrue
startingPositionRF
teamBOS
teamID4
game_date2026-06-17
sl_k_percent19.8
sl_bb_percent8.6
sl_woba0.337
sl_xwoba0.336
sl_xba0.261
sl_xslg0.455
sl_sweet_spot_percent34.6
sl_barrel_batted_rate11.1
sl_hard_hit_percent41.5
sl_exit_velocity_avg89.7
sl_launch_angle_avg18.2
sl_whiff_percent22.3
sl_swing_percent49.7
Willson Contreras (575929) · BATTER · 1B · Team BOS
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 238
All-history rows before 20260618: 238
System season_avg: 0.2980
Data season_avg (2026 season-to-date): 0.2857
Diff (system - data): 0.0123
System opponent_avg: 0.3090

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1640.0000.000Hitting_2B0.1300.000-0.1300.000
predicted_3B0.0300.0000.000Hitting_3B0.0210.000-0.0210.000
predicted_AB3.7004.0004.000Hitting_AB3.6474.0000.3530.000
predicted_AVG0.2700.2500.250Hitting_AVG0.2860.250-0.0360.000
predicted_BB0.4030.0000.000Hitting_BB0.4411.000-0.441-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0170.000-0.0170.000
predicted_H1.0001.0001.000Hitting_H1.0421.000-0.0420.000
predicted_HR0.2401.0000.000Hitting_HR0.2270.0000.7731.000
predicted_OBP0.3790.2500.250Hitting_OBP0.3810.400-0.131-0.150
predicted_R0.5071.0001.000Hitting_R0.4960.0000.5041.000
predicted_RBI0.6101.0001.000Hitting_RBI0.7020.0000.2981.000
predicted_SLG0.5511.0000.250Hitting_SLG0.5200.2500.4800.750
predicted_SO1.1190.0001.000Hitting_SO1.1052.000-1.105-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics9
Boosted Metrics5
Deboosted Metrics4
Better Metrics6
Worse Metrics3
Biggest Boostpredicted_HR: 0.2400 -> 1.0000 (boost 0.7600, better)
Biggest Deboostpredicted_SO: 1.1190 -> 0.0000 (deboost -1.1190, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend44040predicted_H: 1.0000 -> 1.0933 (boost 0.0933, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot50505-predicted_H: 1.0933 -> 1.0419 (deboost -0.0514, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72534predicted_RBI: 0.5911 -> 1.0000 (boost 0.4089, better)predicted_BB: 0.3780 -> 0.0000 (deboost -0.3780, worse)AB rounded to 4 (raw=3.73), rates preserved: AVG=0.280 HR/AB=0.070
5consistency_constraints11010predicted_R: 0.5060 -> 1.0000 (boost 0.4940, better)-Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.5554 -> 0.2500 (deboost -0.3054, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21120predicted_HR: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_SO: 1.0000 -> 0.0000 (deboost -1.0000, better)Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2500 -> 0.5554 (boost 0.3054, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "575929",
  "player_name": "Willson Contreras",
  "position": "1B",
  "team": "BOS",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.164,
        "predicted_3B": 0.03,
        "predicted_AB": 3.7,
        "predicted_AVG": 0.27,
        "predicted_BB": 0.403,
        "predicted_H": 1.0,
        "predicted_HR": 0.24,
        "predicted_OBP": 0.379,
        "predicted_R": 0.507,
        "predicted_RBI": 0.61,
        "predicted_SLG": 0.551,
        "predicted_SO": 1.119
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1923,
        "predicted_3B": 0.0249,
        "predicted_AB": 3.7275,
        "predicted_AVG": 0.2929,
        "predicted_BB": 0.3836,
        "predicted_H": 1.0933,
        "predicted_HBP": 0.191,
        "predicted_HR": 0.2738,
        "predicted_OBP": 0.3911,
        "predicted_R": 0.5497,
        "predicted_RBI": 0.6421,
        "predicted_SLG": 0.5929,
        "predicted_SO": 1.165
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.164,
          "after": 0.1923,
          "delta": 0.0283,
          "percent_delta": 0.1726,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.03,
          "after": 0.0249,
          "delta": -0.0051,
          "percent_delta": -0.17,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.7,
          "after": 3.7275,
          "delta": 0.0275,
          "percent_delta": 0.0074,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.27,
          "after": 0.2929,
          "delta": 0.0229,
          "percent_delta": 0.0848,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.403,
          "after": 0.3836,
          "delta": -0.0194,
          "percent_delta": -0.0481,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0933,
          "delta": 0.0933,
          "percent_delta": 0.0933,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.24,
          "after": 0.2738,
          "delta": 0.0338,
          "percent_delta": 0.1408,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.379,
          "after": 0.3911,
          "delta": 0.0121,
          "percent_delta": 0.0319,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.507,
          "after": 0.5497,
          "delta": 0.0427,
          "percent_delta": 0.0842,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.61,
          "after": 0.6421,
          "delta": 0.0321,
          "percent_delta": 0.0526,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.551,
          "after": 0.5929,
          "delta": 0.0419,
          "percent_delta": 0.076,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.119,
          "after": 1.165,
          "delta": 0.046,
          "percent_delta": 0.0411,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 4,
        "deboosted_metrics": 0,
        "better_metrics": 4,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0933,
          "delta": 0.0933,
          "percent_delta": 0.0933,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 67
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1923,
        "predicted_3B": 0.0249,
        "predicted_AB": 3.7275,
        "predicted_AVG": 0.2795,
        "predicted_BB": 0.378,
        "predicted_H": 1.0419,
        "predicted_HBP": 0.191,
        "predicted_HR": 0.2621,
        "predicted_OBP": 0.3459,
        "predicted_R": 0.506,
        "predicted_RBI": 0.5911,
        "predicted_SLG": 0.5554,
        "predicted_SO": 1.1821
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1923,
          "after": 0.1923,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0249,
          "after": 0.0249,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.7275,
          "after": 3.7275,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2929,
          "after": 0.2795,
          "delta": -0.0134,
          "percent_delta": -0.0457,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3836,
          "after": 0.378,
          "delta": -0.0056,
          "percent_delta": -0.0146,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0933,
          "after": 1.0419,
          "delta": -0.0514,
          "percent_delta": -0.047,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.191,
          "after": 0.191,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2738,
          "after": 0.2621,
          "delta": -0.0117,
          "percent_delta": -0.0427,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3911,
          "after": 0.3459,
          "delta": -0.0452,
          "percent_delta": -0.1156,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5497,
          "after": 0.506,
          "delta": -0.0437,
          "percent_delta": -0.0795,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.6421,
          "after": 0.5911,
          "delta": -0.051,
          "percent_delta": -0.0794,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5929,
          "after": 0.5554,
          "delta": -0.0375,
          "percent_delta": -0.0632,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.165,
          "after": 1.1821,
          "delta": 0.0171,
          "percent_delta": 0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 0,
        "deboosted_metrics": 5,
        "better_metrics": 0,
        "worse_metrics": 5,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0933,
          "after": 1.0419,
          "delta": -0.0514,
          "percent_delta": -0.047,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.73), rates preserved: AVG=0.280 HR/AB=0.070",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1923,
          "after": 0.0,
          "delta": -0.1923,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0249,
          "after": 0.0,
          "delta": -0.0249,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.7275,
          "after": 4.0,
          "delta": 0.2725,
          "percent_delta": 0.0731,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.378,
          "after": 0.0,
          "delta": -0.378,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0419,
          "after": 1.0,
          "delta": -0.0419,
          "percent_delta": -0.0402,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.191,
          "after": 0.0,
          "delta": -0.191,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.2621,
          "after": 0.0,
          "delta": -0.2621,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5911,
          "after": 1.0,
          "delta": 0.4089,
          "percent_delta": 0.6918,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.1821,
          "after": 1.0,
          "delta": -0.1821,
          "percent_delta": -0.154,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 3,
        "worse_metrics": 4,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.5911,
          "after": 1.0,
          "delta": 0.4089,
          "percent_delta": 0.6918,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_BB",
          "before": 0.378,
          "after": 0.0,
          "delta": -0.378,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.506,
          "after": 1.0,
          "delta": 0.494,
          "percent_delta": 0.9763,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_R",
          "before": 0.506,
          "after": 1.0,
          "delta": 0.494,
          "percent_delta": 0.9763,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2795,
          "after": 0.25,
          "delta": -0.0295,
          "percent_delta": -0.1055,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3459,
          "after": 0.25,
          "delta": -0.0959,
          "percent_delta": -0.2772,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.5554,
          "after": 0.25,
          "delta": -0.3054,
          "percent_delta": -0.5499,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.5554,
          "after": 0.25,
          "delta": -0.3054,
          "percent_delta": -0.5499,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2795,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_FB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 1.0,
        "predicted_OBP": 0.3459,
        "predicted_R": 1.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.5554,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2795,
          "delta": 0.0295,
          "percent_delta": 0.1181,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.3459,
          "delta": 0.0959,
          "percent_delta": 0.3834,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.5554,
          "delta": 0.3054,
          "percent_delta": 1.2215,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.5554,
          "delta": 0.3054,
          "percent_delta": 1.2215,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.164,
        "after": 0.0,
        "delta": -0.164,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.03,
        "after": 0.0,
        "delta": -0.03,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.7,
        "after": 4.0,
        "delta": 0.3,
        "percent_delta": 0.0811,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.27,
        "after": 0.2795,
        "delta": 0.0095,
        "percent_delta": 0.0352,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.403,
        "after": 0.0,
        "delta": -0.403,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.24,
        "after": 1.0,
        "delta": 0.76,
        "percent_delta": 3.1667,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.379,
        "after": 0.3459,
        "delta": -0.0331,
        "percent_delta": -0.0873,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.507,
        "after": 1.0,
        "delta": 0.493,
        "percent_delta": 0.9724,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.61,
        "after": 1.0,
        "delta": 0.39,
        "percent_delta": 0.6393,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.551,
        "after": 0.5554,
        "delta": 0.0044,
        "percent_delta": 0.008,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 1.119,
        "after": 0.0,
        "delta": -1.119,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 5,
      "deboosted_metrics": 4,
      "better_metrics": 6,
      "worse_metrics": 3,
      "biggest_boost": {
        "metric": "predicted_HR",
        "before": 0.24,
        "after": 1.0,
        "delta": 0.76,
        "percent_delta": 3.1667,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 1.119,
        "after": 0.0,
        "delta": -1.119,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.164-
predicted_3B0.030-
predicted_AB3.700-
predicted_AVG0.270-
predicted_BB0.403-
predicted_H1.000-
predicted_HR0.240-
predicted_OBP0.379-
predicted_R0.507-
predicted_RBI0.610-
predicted_SLG0.551-
predicted_SO1.119-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1920.028
predicted_3B0.025-0.005
predicted_AB3.7280.027
predicted_AVG0.2930.023
predicted_BB0.384-0.019
predicted_H1.0930.093
predicted_HBP0.191-
predicted_HR0.2740.034
predicted_OBP0.3910.012
predicted_R0.5500.043
predicted_RBI0.6420.032
predicted_SLG0.5930.042
predicted_SO1.1650.046
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1920.000
predicted_3B0.0250.000
predicted_AB3.7280.000
predicted_AVG0.280-0.013
predicted_BB0.378-0.006
predicted_H1.042-0.051
predicted_HBP0.1910.000
predicted_HR0.262-0.012
predicted_OBP0.346-0.045
predicted_R0.506-0.044
predicted_RBI0.591-0.051
predicted_SLG0.555-0.037
predicted_SO1.1820.017
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.73), rates preserved: AVG=0.280 HR/AB=0.070

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R1.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.192
predicted_3B0.000-0.025
predicted_AB4.0000.272
predicted_AVG0.250-0.030
predicted_BB0.000-0.378
predicted_H1.000-0.042
predicted_HR0.000-0.262
predicted_OBP0.250-0.096
predicted_R1.0000.494
predicted_RBI1.0000.409
predicted_SLG0.250-0.305
predicted_SO1.000-0.182
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR1.0001.000
PA4.000-
R1.0000.000
RBI1.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 67
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.0009.0002.0000.0003.0004.0005.0002.0008.0000.45000.52171.00000.45000.15000.20000.10000.4000
last_100.2010-38.00012.0003.0000.0004.0008.0006.0002.00014.0000.31580.39530.71050.31580.10530.21050.05260.3684
season0.6067-245.00073.00011.0002.00016.00043.00034.00027.00075.0000.29800.39020.55510.29800.06530.17550.11020.3061
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2310
predicted_3B0.0180
predicted_AB3.7650
predicted_AVG0.3243
predicted_BB0.3570
predicted_H1.2210
predicted_HBP0.1910
predicted_HR0.3200
predicted_OBP0.4077
predicted_R0.6080
predicted_RBI0.6860
predicted_SLG0.6501
predicted_SO1.2280
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.16400.23100.1923model_form_blend
predicted_3B0.03000.01800.0249model_form_blend
predicted_AB3.70003.76503.7275model_form_blend
predicted_AVG0.27000.32430.2929model_form_blend
predicted_BB0.40300.35700.3836model_form_blend
predicted_H1.00001.22101.0933model_form_blend
predicted_HBP-0.19100.1910form_only
predicted_HR0.24000.32000.2738model_form_blend
predicted_OBP0.37900.40770.3911model_form_blend
predicted_R0.50700.60800.5497model_form_blend
predicted_RBI0.61000.68600.6421model_form_blend
predicted_SLG0.55100.65010.5929model_form_blend
predicted_SO1.11901.22801.1650model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date238
Season rows before report date238
Report year2026
Profile rows used67
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR1
R1
RBI1
BB0
SO0
SF0
HBP0
season_avg0.298

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB1
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB1
Hitting_battingOrder4
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed1B
gameID20260617_TOR@BOS
game_typefull
mlbID575929
playerID575929
playerNameWillson Contreras
pos1B
startedTrue
startingPosition1B
teamBOS
teamID4
game_date2026-06-17
sl_k_percent26.0
sl_bb_percent9.4
sl_woba0.405
sl_xwoba0.383
sl_xba0.266
sl_xslg0.504
sl_sweet_spot_percent33.5
sl_barrel_batted_rate14.0
sl_hard_hit_percent44.5
sl_exit_velocity_avg90.1
sl_launch_angle_avg16.9
sl_whiff_percent30.3
sl_swing_percent49.0
Mickey Gasper (681508) · BATTER · DH · Team BOS
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 61
All-history rows before 20260618: 61
System season_avg: 0.2580
Data season_avg (2026 season-to-date): 0.3099
Diff (system - data): -0.0519
System opponent_avg: 0.0000
System season_avg diverges from 2026 season-to-date by -0.0519. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1431.0000.000Hitting_2B0.1640.0000.8361.000
predicted_3B0.0360.0000.000Hitting_3B0.0160.000-0.0160.000
predicted_AB3.4904.0003.000Hitting_AB3.4924.0000.5080.000
predicted_AVG0.2330.2500.333Hitting_AVG0.3100.000-0.0600.250
predicted_BB0.2500.0000.000Hitting_BB0.2131.000-0.213-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0820.000-0.0820.000
predicted_H0.8201.0001.000Hitting_H1.0820.000-0.0821.000
predicted_HR0.0700.0000.000Hitting_HR0.0000.0000.0000.000
predicted_OBP0.3010.2500.333Hitting_OBP0.3590.200-0.1090.050
predicted_R0.3930.0000.000Hitting_R0.5410.000-0.5410.000
predicted_RBI0.3500.0000.000Hitting_RBI0.2130.000-0.2130.000
predicted_SLG0.3360.5000.333Hitting_SLG0.3660.0000.1340.500
predicted_SO0.7141.0001.000Hitting_SO0.6890.0000.3111.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics4
Deboosted Metrics7
Better Metrics3
Worse Metrics8
Biggest Boostpredicted_2B: 0.1430 -> 1.0000 (boost 0.8570, better)
Biggest Deboostpredicted_R: 0.3930 -> 0.0000 (deboost -0.3930, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend20202-predicted_SLG: 0.3360 -> 0.3266 (deboost -0.0094, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_OBP: 0.2993 -> 0.2777 (deboost -0.0216, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling72516predicted_SO: 0.7028 -> 1.0000 (boost 0.2972, worse)predicted_AB: 3.4408 -> 3.0000 (deboost -0.4408, worse)AB rounded to 3 (raw=3.49), rates preserved: AVG=0.215 HR/AB=0.015
5consistency_constraints10101-predicted_R: 0.3491 -> 0.0000 (deboost -0.3491, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.2186 -> 0.3330 (boost 0.1144, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference22020predicted_2B: 0.0000 -> 1.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.2186 (deboost -0.1144, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "681508",
  "player_name": "Mickey Gasper",
  "position": "DH",
  "team": "BOS",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.143,
        "predicted_3B": 0.036,
        "predicted_AB": 3.49,
        "predicted_AVG": 0.233,
        "predicted_BB": 0.25,
        "predicted_H": 0.82,
        "predicted_HR": 0.07,
        "predicted_OBP": 0.301,
        "predicted_R": 0.393,
        "predicted_RBI": 0.35,
        "predicted_SLG": 0.336,
        "predicted_SO": 0.714
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1483,
        "predicted_3B": 0.0356,
        "predicted_AB": 3.4408,
        "predicted_AVG": 0.2279,
        "predicted_BB": 0.2859,
        "predicted_H": 0.7891,
        "predicted_HBP": 0.025,
        "predicted_HR": 0.0536,
        "predicted_OBP": 0.2993,
        "predicted_R": 0.3793,
        "predicted_RBI": 0.3256,
        "predicted_SLG": 0.3266,
        "predicted_SO": 0.6926
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.143,
          "after": 0.1483,
          "delta": 0.0053,
          "percent_delta": 0.0371,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.036,
          "after": 0.0356,
          "delta": -0.0004,
          "percent_delta": -0.0111,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.49,
          "after": 3.4408,
          "delta": -0.0492,
          "percent_delta": -0.0141,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.233,
          "after": 0.2279,
          "delta": -0.0051,
          "percent_delta": -0.0219,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.25,
          "after": 0.2859,
          "delta": 0.0359,
          "percent_delta": 0.1436,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.82,
          "after": 0.7891,
          "delta": -0.0309,
          "percent_delta": -0.0377,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.07,
          "after": 0.0536,
          "delta": -0.0164,
          "percent_delta": -0.2343,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.301,
          "after": 0.2993,
          "delta": -0.0017,
          "percent_delta": -0.0056,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.393,
          "after": 0.3793,
          "delta": -0.0137,
          "percent_delta": -0.0349,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.35,
          "after": 0.3256,
          "delta": -0.0244,
          "percent_delta": -0.0697,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.336,
          "after": 0.3266,
          "delta": -0.0094,
          "percent_delta": -0.028,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.714,
          "after": 0.6926,
          "delta": -0.0214,
          "percent_delta": -0.03,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.336,
          "after": 0.3266,
          "delta": -0.0094,
          "percent_delta": -0.028,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 28
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1483,
        "predicted_3B": 0.0356,
        "predicted_AB": 3.4408,
        "predicted_AVG": 0.2186,
        "predicted_BB": 0.2817,
        "predicted_H": 0.752,
        "predicted_HBP": 0.025,
        "predicted_HR": 0.0513,
        "predicted_OBP": 0.2777,
        "predicted_R": 0.3491,
        "predicted_RBI": 0.2997,
        "predicted_SLG": 0.3271,
        "predicted_SO": 0.7028
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1483,
          "after": 0.1483,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0356,
          "after": 0.0356,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4408,
          "after": 3.4408,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2279,
          "after": 0.2186,
          "delta": -0.0093,
          "percent_delta": -0.0408,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2859,
          "after": 0.2817,
          "delta": -0.0042,
          "percent_delta": -0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7891,
          "after": 0.752,
          "delta": -0.0371,
          "percent_delta": -0.047,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.025,
          "after": 0.025,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0536,
          "after": 0.0513,
          "delta": -0.0023,
          "percent_delta": -0.0429,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2993,
          "after": 0.2777,
          "delta": -0.0216,
          "percent_delta": -0.0722,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3793,
          "after": 0.3491,
          "delta": -0.0302,
          "percent_delta": -0.0796,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3256,
          "after": 0.2997,
          "delta": -0.0259,
          "percent_delta": -0.0795,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3266,
          "after": 0.3271,
          "delta": 0.0005,
          "percent_delta": 0.0015,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.6926,
          "after": 0.7028,
          "delta": 0.0102,
          "percent_delta": 0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.2993,
          "after": 0.2777,
          "delta": -0.0216,
          "percent_delta": -0.0722,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.49), rates preserved: AVG=0.215 HR/AB=0.015",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1483,
          "after": 0.0,
          "delta": -0.1483,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0356,
          "after": 0.0,
          "delta": -0.0356,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.4408,
          "after": 3.0,
          "delta": -0.4408,
          "percent_delta": -0.1281,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2817,
          "after": 0.0,
          "delta": -0.2817,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.752,
          "after": 1.0,
          "delta": 0.248,
          "percent_delta": 0.3298,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.025,
          "after": 0.0,
          "delta": -0.025,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0513,
          "after": 0.0,
          "delta": -0.0513,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2997,
          "after": 0.0,
          "delta": -0.2997,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7028,
          "after": 1.0,
          "delta": 0.2972,
          "percent_delta": 0.4229,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 2,
        "deboosted_metrics": 5,
        "better_metrics": 1,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.7028,
          "after": 1.0,
          "delta": 0.2972,
          "percent_delta": 0.4229,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 3.4408,
          "after": 3.0,
          "delta": -0.4408,
          "percent_delta": -0.1281,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3491,
          "after": 0.0,
          "delta": -0.3491,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3491,
          "after": 0.0,
          "delta": -0.3491,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2186,
          "after": 0.333,
          "delta": 0.1144,
          "percent_delta": 0.5233,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2777,
          "after": 0.333,
          "delta": 0.0553,
          "percent_delta": 0.1991,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3271,
          "after": 0.333,
          "delta": 0.0059,
          "percent_delta": 0.018,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2186,
          "after": 0.333,
          "delta": 0.1144,
          "percent_delta": 0.5233,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 1.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2186,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_DH": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2777,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3271,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2186,
          "delta": -0.1144,
          "percent_delta": -0.3437,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2777,
          "delta": -0.0553,
          "percent_delta": -0.1661,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3271,
          "delta": -0.0059,
          "percent_delta": -0.0178,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2186,
          "delta": -0.1144,
          "percent_delta": -0.3437,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.143,
        "after": 1.0,
        "delta": 0.857,
        "percent_delta": 5.993,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.036,
        "after": 0.0,
        "delta": -0.036,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.49,
        "after": 4.0,
        "delta": 0.51,
        "percent_delta": 0.1461,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.233,
        "after": 0.2186,
        "delta": -0.0144,
        "percent_delta": -0.0618,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.25,
        "after": 0.0,
        "delta": -0.25,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.82,
        "after": 1.0,
        "delta": 0.18,
        "percent_delta": 0.2195,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.07,
        "after": 0.0,
        "delta": -0.07,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.301,
        "after": 0.2777,
        "delta": -0.0233,
        "percent_delta": -0.0774,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.393,
        "after": 0.0,
        "delta": -0.393,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.35,
        "after": 0.0,
        "delta": -0.35,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.336,
        "after": 0.3271,
        "delta": -0.0089,
        "percent_delta": -0.0265,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.714,
        "after": 1.0,
        "delta": 0.286,
        "percent_delta": 0.4006,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 4,
      "deboosted_metrics": 7,
      "better_metrics": 3,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_2B",
        "before": 0.143,
        "after": 1.0,
        "delta": 0.857,
        "percent_delta": 5.993,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_R",
        "before": 0.393,
        "after": 0.0,
        "delta": -0.393,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.143-
predicted_3B0.036-
predicted_AB3.490-
predicted_AVG0.233-
predicted_BB0.250-
predicted_H0.820-
predicted_HR0.070-
predicted_OBP0.301-
predicted_R0.393-
predicted_RBI0.350-
predicted_SLG0.336-
predicted_SO0.714-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1480.005
predicted_3B0.036-0.000
predicted_AB3.441-0.049
predicted_AVG0.228-0.005
predicted_BB0.2860.036
predicted_H0.789-0.031
predicted_HBP0.025-
predicted_HR0.054-0.016
predicted_OBP0.299-0.002
predicted_R0.379-0.014
predicted_RBI0.326-0.024
predicted_SLG0.327-0.009
predicted_SO0.693-0.021
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1480.000
predicted_3B0.0360.000
predicted_AB3.4410.000
predicted_AVG0.219-0.009
predicted_BB0.282-0.004
predicted_H0.752-0.037
predicted_HBP0.0250.000
predicted_HR0.051-0.002
predicted_OBP0.278-0.022
predicted_R0.349-0.030
predicted_RBI0.300-0.026
predicted_SLG0.3270.001
predicted_SO0.7030.010
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.49), rates preserved: AVG=0.215 HR/AB=0.015

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.148
predicted_3B0.000-0.036
predicted_AB3.000-0.441
predicted_AVG0.3330.114
predicted_BB0.000-0.282
predicted_H1.0000.248
predicted_HR0.000-0.051
predicted_OBP0.3330.055
predicted_R0.000-0.349
predicted_RBI0.000-0.300
predicted_SLG0.3330.006
predicted_SO1.0000.297
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B1.0001.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 28
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-15.0002.0001.0000.0000.0001.0001.0003.0001.0000.13330.27780.20000.13330.00000.06670.20000.0667
last_100.2010-35.0005.0001.0001.0000.0003.0002.0004.0007.0000.14290.23080.22860.14290.00000.08570.11430.2000
season0.6028-89.00023.0004.0001.0000.0006.00011.0007.00020.0000.25840.31630.32580.25840.00000.06740.07860.2247
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1570
predicted_3B0.0350
predicted_AB3.3610
predicted_AVG0.2197
predicted_BB0.3440
predicted_H0.7390
predicted_HBP0.0250
predicted_HR0.0270
predicted_OBP0.2966
predicted_R0.3570
predicted_RBI0.2860
predicted_SLG0.3113
predicted_SO0.6580
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.14300.15700.1483model_form_blend
predicted_3B0.03600.03500.0356model_form_blend
predicted_AB3.49003.36103.4408model_form_blend
predicted_AVG0.23300.21970.2279model_form_blend
predicted_BB0.25000.34400.2859model_form_blend
predicted_H0.82000.73900.7891model_form_blend
predicted_HBP-0.02500.0250form_only
predicted_HR0.07000.02700.0536model_form_blend
predicted_OBP0.30100.29660.2993model_form_blend
predicted_R0.39300.35700.3793model_form_blend
predicted_RBI0.35000.28600.3256model_form_blend
predicted_SLG0.33600.31130.3266model_form_blend
predicted_SO0.71400.65800.6926model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date61
Season rows before report date61
Report year2026
Profile rows used28
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B1
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.258

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB1
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder1
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedC
gameID20260617_TOR@BOS
game_typefull
mlbID681508
playerID681508
playerNameMickey Gasper
posC
startedTrue
startingPositionC
teamBOS
teamID4
game_date2026-06-17
sl_k_percent20.2
sl_bb_percent7.1
sl_woba0.29
sl_xwoba0.282
sl_xba0.225
sl_xslg0.339
sl_sweet_spot_percent29.6
sl_barrel_batted_rate5.6
sl_hard_hit_percent40.8
sl_exit_velocity_avg89.0
sl_launch_angle_avg15.6
sl_whiff_percent19.6
sl_swing_percent42.7
Ceddanne Rafaela (678882) · BATTER · CF · Team BOS
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 217
All-history rows before 20260618: 217
System season_avg: 0.2860
Data season_avg (2026 season-to-date): 0.2845
Diff (system - data): 0.0015
System opponent_avg: 0.2220

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2270.0000.000Hitting_2B0.1980.000-0.1980.000
predicted_3B0.0300.0000.000Hitting_3B0.0460.000-0.0460.000
predicted_AB3.9604.0004.000Hitting_AB3.7745.0000.226-1.000
predicted_AVG0.2550.0000.250Hitting_AVG0.2840.200-0.284-0.200
predicted_BB0.2120.0000.000Hitting_BB0.2440.000-0.2440.000
predicted_CS-0.0000.000BaseRunning_CS0.0880.000-0.0880.000
predicted_H1.0100.0001.000Hitting_H1.0741.000-1.074-1.000
predicted_HR0.1300.0000.000Hitting_HR0.0920.000-0.0920.000
predicted_OBP0.3250.0000.250Hitting_OBP0.3470.200-0.347-0.200
predicted_R0.4390.0000.000Hitting_R0.4650.000-0.4650.000
predicted_RBI0.5500.0001.000Hitting_RBI0.4520.000-0.4520.000
predicted_SLG0.4390.0000.250Hitting_SLG0.4350.200-0.435-0.200
predicted_SO0.8331.0001.000Hitting_SO0.8661.0000.1340.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics9
Boosted Metrics1
Deboosted Metrics8
Better Metrics0
Worse Metrics9
Biggest Boostpredicted_SO: 0.8330 -> 1.0000 (boost 0.1670, worse)
Biggest Deboostpredicted_H: 1.0100 -> 0.0000 (deboost -1.0100, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend33030predicted_H: 1.0100 -> 1.0790 (boost 0.0690, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot40404-predicted_H: 1.0790 -> 1.0283 (deboost -0.0507, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62415predicted_RBI: 0.5353 -> 1.0000 (boost 0.4647, better)predicted_2B: 0.2556 -> 0.0000 (deboost -0.2556, worse)AB rounded to 4 (raw=3.98), rates preserved: AVG=0.259 HR/AB=0.032
5consistency_constraints10101-predicted_R: 0.4215 -> 0.0000 (deboost -0.4215, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context30303-predicted_SLG: 0.4325 -> 0.2500 (deboost -0.1825, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference20202-predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final33030predicted_SLG: 0.2500 -> 0.4325 (boost 0.1825, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "678882",
  "player_name": "Ceddanne Rafaela",
  "position": "CF",
  "team": "BOS",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.227,
        "predicted_3B": 0.03,
        "predicted_AB": 3.96,
        "predicted_AVG": 0.255,
        "predicted_BB": 0.212,
        "predicted_H": 1.01,
        "predicted_HR": 0.13,
        "predicted_OBP": 0.325,
        "predicted_R": 0.439,
        "predicted_RBI": 0.55,
        "predicted_SLG": 0.439,
        "predicted_SO": 0.833
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2556,
        "predicted_3B": 0.0254,
        "predicted_AB": 3.9768,
        "predicted_AVG": 0.2712,
        "predicted_BB": 0.1943,
        "predicted_H": 1.079,
        "predicted_HBP": 0.056,
        "predicted_HR": 0.1342,
        "predicted_OBP": 0.3278,
        "predicted_R": 0.4579,
        "predicted_RBI": 0.5815,
        "predicted_SLG": 0.4572,
        "predicted_SO": 0.8317
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.227,
          "after": 0.2556,
          "delta": 0.0286,
          "percent_delta": 0.126,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.03,
          "after": 0.0254,
          "delta": -0.0046,
          "percent_delta": -0.1533,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.96,
          "after": 3.9768,
          "delta": 0.0168,
          "percent_delta": 0.0042,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.255,
          "after": 0.2712,
          "delta": 0.0162,
          "percent_delta": 0.0635,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.212,
          "after": 0.1943,
          "delta": -0.0177,
          "percent_delta": -0.0835,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.01,
          "after": 1.079,
          "delta": 0.069,
          "percent_delta": 0.0683,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.13,
          "after": 0.1342,
          "delta": 0.0042,
          "percent_delta": 0.0323,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.325,
          "after": 0.3278,
          "delta": 0.0028,
          "percent_delta": 0.0086,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.439,
          "after": 0.4579,
          "delta": 0.0189,
          "percent_delta": 0.0431,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.55,
          "after": 0.5815,
          "delta": 0.0315,
          "percent_delta": 0.0573,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.439,
          "after": 0.4572,
          "delta": 0.0182,
          "percent_delta": 0.0415,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.833,
          "after": 0.8317,
          "delta": -0.0013,
          "percent_delta": -0.0016,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 1.01,
          "after": 1.079,
          "delta": 0.069,
          "percent_delta": 0.0683,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 66
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2556,
        "predicted_3B": 0.0254,
        "predicted_AB": 3.9768,
        "predicted_AVG": 0.2586,
        "predicted_BB": 0.1914,
        "predicted_H": 1.0283,
        "predicted_HBP": 0.056,
        "predicted_HR": 0.1284,
        "predicted_OBP": 0.2926,
        "predicted_R": 0.4215,
        "predicted_RBI": 0.5353,
        "predicted_SLG": 0.4325,
        "predicted_SO": 0.8439
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2556,
          "after": 0.2556,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0254,
          "after": 0.0254,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9768,
          "after": 3.9768,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2712,
          "after": 0.2586,
          "delta": -0.0126,
          "percent_delta": -0.0465,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1943,
          "after": 0.1914,
          "delta": -0.0029,
          "percent_delta": -0.0149,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.079,
          "after": 1.0283,
          "delta": -0.0507,
          "percent_delta": -0.047,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.056,
          "after": 0.056,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1342,
          "after": 0.1284,
          "delta": -0.0058,
          "percent_delta": -0.0432,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3278,
          "after": 0.2926,
          "delta": -0.0352,
          "percent_delta": -0.1074,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4579,
          "after": 0.4215,
          "delta": -0.0364,
          "percent_delta": -0.0795,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5815,
          "after": 0.5353,
          "delta": -0.0462,
          "percent_delta": -0.0794,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4572,
          "after": 0.4325,
          "delta": -0.0247,
          "percent_delta": -0.054,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8317,
          "after": 0.8439,
          "delta": 0.0122,
          "percent_delta": 0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 4,
        "boosted_metrics": 0,
        "deboosted_metrics": 4,
        "better_metrics": 0,
        "worse_metrics": 4,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.079,
          "after": 1.0283,
          "delta": -0.0507,
          "percent_delta": -0.047,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=3.98), rates preserved: AVG=0.259 HR/AB=0.032",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2556,
          "after": 0.0,
          "delta": -0.2556,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0254,
          "after": 0.0,
          "delta": -0.0254,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.9768,
          "after": 4.0,
          "delta": 0.0232,
          "percent_delta": 0.0058,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.1914,
          "after": 0.0,
          "delta": -0.1914,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 1.0283,
          "after": 1.0,
          "delta": -0.0283,
          "percent_delta": -0.0275,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.056,
          "after": 0.0,
          "delta": -0.056,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.1284,
          "after": 0.0,
          "delta": -0.1284,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5353,
          "after": 1.0,
          "delta": 0.4647,
          "percent_delta": 0.8681,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8439,
          "after": 1.0,
          "delta": 0.1561,
          "percent_delta": 0.185,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_RBI",
          "before": 0.5353,
          "after": 1.0,
          "delta": 0.4647,
          "percent_delta": 0.8681,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_2B",
          "before": 0.2556,
          "after": 0.0,
          "delta": -0.2556,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4215,
          "after": 0.0,
          "delta": -0.4215,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4215,
          "after": 0.0,
          "delta": -0.4215,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 1.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2586,
          "after": 0.25,
          "delta": -0.0086,
          "percent_delta": -0.0333,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2926,
          "after": 0.25,
          "delta": -0.0426,
          "percent_delta": -0.1456,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4325,
          "after": 0.25,
          "delta": -0.1825,
          "percent_delta": -0.422,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.4325,
          "after": 0.25,
          "delta": -0.1825,
          "percent_delta": -0.422,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.2586,
        "predicted_BB": 0.0,
        "predicted_CF": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2926,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.4325,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2586,
          "delta": 0.0086,
          "percent_delta": 0.0343,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2926,
          "delta": 0.0426,
          "percent_delta": 0.1705,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4325,
          "delta": 0.1825,
          "percent_delta": 0.73,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.4325,
          "delta": 0.1825,
          "percent_delta": 0.73,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.227,
        "after": 0.0,
        "delta": -0.227,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.03,
        "after": 0.0,
        "delta": -0.03,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.96,
        "after": 4.0,
        "delta": 0.04,
        "percent_delta": 0.0101,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AVG",
        "before": 0.255,
        "after": 0.2586,
        "delta": 0.0036,
        "percent_delta": 0.0141,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_BB",
        "before": 0.212,
        "after": 0.0,
        "delta": -0.212,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 1.01,
        "after": 0.0,
        "delta": -1.01,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.13,
        "after": 0.0,
        "delta": -0.13,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.325,
        "after": 0.2926,
        "delta": -0.0324,
        "percent_delta": -0.0997,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.439,
        "after": 0.0,
        "delta": -0.439,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.55,
        "after": 0.0,
        "delta": -0.55,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.439,
        "after": 0.4325,
        "delta": -0.0065,
        "percent_delta": -0.0148,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.833,
        "after": 1.0,
        "delta": 0.167,
        "percent_delta": 0.2005,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 9,
      "boosted_metrics": 1,
      "deboosted_metrics": 8,
      "better_metrics": 0,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.833,
        "after": 1.0,
        "delta": 0.167,
        "percent_delta": 0.2005,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 1.01,
        "after": 0.0,
        "delta": -1.01,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.227-
predicted_3B0.030-
predicted_AB3.960-
predicted_AVG0.255-
predicted_BB0.212-
predicted_H1.010-
predicted_HR0.130-
predicted_OBP0.325-
predicted_R0.439-
predicted_RBI0.550-
predicted_SLG0.439-
predicted_SO0.833-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.2560.029
predicted_3B0.025-0.005
predicted_AB3.9770.017
predicted_AVG0.2710.016
predicted_BB0.194-0.018
predicted_H1.0790.069
predicted_HBP0.056-
predicted_HR0.1340.004
predicted_OBP0.3280.003
predicted_R0.4580.019
predicted_RBI0.5820.031
predicted_SLG0.4570.018
predicted_SO0.832-0.001
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2560.000
predicted_3B0.0250.000
predicted_AB3.9770.000
predicted_AVG0.259-0.013
predicted_BB0.191-0.003
predicted_H1.028-0.051
predicted_HBP0.0560.000
predicted_HR0.128-0.006
predicted_OBP0.293-0.035
predicted_R0.421-0.036
predicted_RBI0.535-0.046
predicted_SLG0.432-0.025
predicted_SO0.8440.012
4. ab_floor_and_scaling

AB rounded to 4 (raw=3.98), rates preserved: AVG=0.259 HR/AB=0.032

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI1.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI1.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.256
predicted_3B0.000-0.025
predicted_AB4.0000.023
predicted_AVG0.250-0.009
predicted_BB0.000-0.191
predicted_H1.000-0.028
predicted_HR0.000-0.128
predicted_OBP0.250-0.043
predicted_R0.000-0.421
predicted_RBI1.0000.465
predicted_SLG0.250-0.182
predicted_SO1.0000.156
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.000-1.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 66
Reference playing time: 3.960
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-23.0008.0003.0000.0001.0005.0003.0000.0004.0000.34780.34780.60870.34780.04350.21740.00000.1739
last_100.2010-42.00012.0003.0000.0002.0008.0005.0001.0008.0000.28570.30230.50000.28570.04760.19050.02380.1905
season0.6066-248.00071.00015.0002.0007.00032.00029.00014.00055.0000.28630.33960.44760.28630.02820.12900.05650.2218
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2950
predicted_3B0.0190
predicted_AB4.0000
predicted_AVG0.2936
predicted_BB0.1700
predicted_H1.1740
predicted_HBP0.0560
predicted_HR0.1400
predicted_OBP0.3317
predicted_R0.4840
predicted_RBI0.6250
predicted_SLG0.4822
predicted_SO0.8300
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.22700.29500.2556model_form_blend
predicted_3B0.03000.01900.0254model_form_blend
predicted_AB3.96004.00003.9768model_form_blend
predicted_AVG0.25500.29360.2712model_form_blend
predicted_BB0.21200.17000.1943model_form_blend
predicted_H1.01001.17401.0790model_form_blend
predicted_HBP-0.05600.0560form_only
predicted_HR0.13000.14000.1342model_form_blend
predicted_OBP0.32500.33170.3278model_form_blend
predicted_R0.43900.48400.4579model_form_blend
predicted_RBI0.55000.62500.5815model_form_blend
predicted_SLG0.43900.48220.4572model_form_blend
predicted_SO0.83300.83000.8317model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date217
Season rows before report date217
Report year2026
Profile rows used66
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.286

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB5
Hitting_AVG0.2
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO1
Hitting_TB1
Hitting_battingOrder2
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedCF
gameID20260617_TOR@BOS
game_typefull
mlbID678882
playerID678882
playerNameCeddanne Rafaela
posCF
startedTrue
startingPositionCF
teamBOS
teamID4
game_date2026-06-17
sl_k_percent20.5
sl_bb_percent5.2
sl_woba0.346
sl_xwoba0.296
sl_xba0.246
sl_xslg0.366
sl_sweet_spot_percent38.3
sl_barrel_batted_rate6.3
sl_hard_hit_percent36.3
sl_exit_velocity_avg86.6
sl_launch_angle_avg10.7
sl_whiff_percent24.2
sl_swing_percent52.2
Isiah Kiner-Falefa (643396) · BATTER · SS · Team BOS
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 90
All-history rows before 20260618: 90
System season_avg: 0.2760
Data season_avg (2026 season-to-date): 0.3123
Diff (system - data): -0.0363
System opponent_avg: 0.3750
System season_avg diverges from 2026 season-to-date by -0.0363. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1000.0000.000Hitting_2B0.0440.000-0.0440.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.9003.0003.000Hitting_AB2.8112.0000.1891.000
predicted_AVG0.2790.0000.333Hitting_AVG0.3120.500-0.312-0.500
predicted_BB0.3001.0000.000Hitting_BB0.3892.0000.611-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0560.000-0.0560.000
predicted_H0.7200.0001.000Hitting_H0.8781.000-0.878-1.000
predicted_HR0.0600.0000.000Hitting_HR0.0440.000-0.0440.000
predicted_OBP0.3360.2500.333Hitting_OBP0.3960.750-0.146-0.500
predicted_R0.4500.0000.000Hitting_R0.5220.000-0.5220.000
predicted_RBI0.2800.0000.000Hitting_RBI0.4000.000-0.4000.000
predicted_SLG0.3580.0000.333Hitting_SLG0.3750.500-0.375-0.500
predicted_SO0.4502.0000.000Hitting_SO0.4000.0001.6002.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics3
Deboosted Metrics8
Better Metrics2
Worse Metrics9
Biggest Boostpredicted_SO: 0.4500 -> 2.0000 (boost 1.5500, worse)
Biggest Deboostpredicted_H: 0.7200 -> 0.0000 (deboost -0.7200, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend32121predicted_AB: 2.9000 -> 3.0298 (boost 0.1298, better)predicted_SLG: 0.3580 -> 0.3518 (deboost -0.0062, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_AVG: 0.2784 -> 0.2483 (deboost -0.0301, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling51423predicted_H: 0.7523 -> 1.0000 (boost 0.2477, better)predicted_SO: 0.4782 -> 0.0000 (deboost -0.4782, better)AB rounded to 3 (raw=3.03), rates preserved: AVG=0.248 HR/AB=0.016
5consistency_constraints10101-predicted_R: 0.4200 -> 0.0000 (deboost -0.4200, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context22020predicted_AVG: 0.2483 -> 0.3330 (boost 0.0847, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference32112predicted_SO: 0.0000 -> 2.0000 (boost 2.0000, worse)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final20202-predicted_AVG: 0.3330 -> 0.2483 (deboost -0.0847, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "643396",
  "player_name": "Isiah Kiner-Falefa",
  "position": "SS",
  "team": "BOS",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.1,
        "predicted_3B": 0.0,
        "predicted_AB": 2.9,
        "predicted_AVG": 0.279,
        "predicted_BB": 0.3,
        "predicted_H": 0.72,
        "predicted_HR": 0.06,
        "predicted_OBP": 0.336,
        "predicted_R": 0.45,
        "predicted_RBI": 0.28,
        "predicted_SLG": 0.358,
        "predicted_SO": 0.45
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1004,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.0298,
        "predicted_AVG": 0.2784,
        "predicted_BB": 0.3138,
        "predicted_H": 0.7894,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.0501,
        "predicted_OBP": 0.3403,
        "predicted_R": 0.4563,
        "predicted_RBI": 0.2654,
        "predicted_SLG": 0.3518,
        "predicted_SO": 0.4713
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1,
          "after": 0.1004,
          "delta": 0.0004,
          "percent_delta": 0.004,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9,
          "after": 3.0298,
          "delta": 0.1298,
          "percent_delta": 0.0448,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.279,
          "after": 0.2784,
          "delta": -0.0006,
          "percent_delta": -0.0022,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3,
          "after": 0.3138,
          "delta": 0.0138,
          "percent_delta": 0.046,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.72,
          "after": 0.7894,
          "delta": 0.0694,
          "percent_delta": 0.0964,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.06,
          "after": 0.0501,
          "delta": -0.0099,
          "percent_delta": -0.165,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.336,
          "after": 0.3403,
          "delta": 0.0043,
          "percent_delta": 0.0128,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.45,
          "after": 0.4563,
          "delta": 0.0063,
          "percent_delta": 0.014,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.28,
          "after": 0.2654,
          "delta": -0.0146,
          "percent_delta": -0.0521,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.358,
          "after": 0.3518,
          "delta": -0.0062,
          "percent_delta": -0.0173,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.45,
          "after": 0.4713,
          "delta": 0.0213,
          "percent_delta": 0.0473,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 2.9,
          "after": 3.0298,
          "delta": 0.1298,
          "percent_delta": 0.0448,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.358,
          "after": 0.3518,
          "delta": -0.0062,
          "percent_delta": -0.0173,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 40
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1004,
        "predicted_3B": 0.0008,
        "predicted_AB": 3.0298,
        "predicted_AVG": 0.2483,
        "predicted_BB": 0.3092,
        "predicted_H": 0.7523,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.048,
        "predicted_OBP": 0.3179,
        "predicted_R": 0.42,
        "predicted_RBI": 0.2443,
        "predicted_SLG": 0.3294,
        "predicted_SO": 0.4782
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1004,
          "after": 0.1004,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0298,
          "after": 3.0298,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2784,
          "after": 0.2483,
          "delta": -0.0301,
          "percent_delta": -0.1081,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3138,
          "after": 0.3092,
          "delta": -0.0046,
          "percent_delta": -0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.7894,
          "after": 0.7523,
          "delta": -0.0371,
          "percent_delta": -0.047,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.006,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0501,
          "after": 0.048,
          "delta": -0.0021,
          "percent_delta": -0.0419,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3403,
          "after": 0.3179,
          "delta": -0.0224,
          "percent_delta": -0.0658,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4563,
          "after": 0.42,
          "delta": -0.0363,
          "percent_delta": -0.0796,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2654,
          "after": 0.2443,
          "delta": -0.0211,
          "percent_delta": -0.0795,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3518,
          "after": 0.3294,
          "delta": -0.0224,
          "percent_delta": -0.0637,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.4713,
          "after": 0.4782,
          "delta": 0.0069,
          "percent_delta": 0.0146,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2784,
          "after": 0.2483,
          "delta": -0.0301,
          "percent_delta": -0.1081,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.03), rates preserved: AVG=0.248 HR/AB=0.016",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1004,
          "after": 0.0,
          "delta": -0.1004,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0298,
          "after": 3.0,
          "delta": -0.0298,
          "percent_delta": -0.0098,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3092,
          "after": 0.0,
          "delta": -0.3092,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.7523,
          "after": 1.0,
          "delta": 0.2477,
          "percent_delta": 0.3293,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.0,
          "delta": -0.006,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.048,
          "after": 0.0,
          "delta": -0.048,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2443,
          "after": 0.0,
          "delta": -0.2443,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.4782,
          "after": 0.0,
          "delta": -0.4782,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 5,
        "boosted_metrics": 1,
        "deboosted_metrics": 4,
        "better_metrics": 2,
        "worse_metrics": 3,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.7523,
          "after": 1.0,
          "delta": 0.2477,
          "percent_delta": 0.3293,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 0.4782,
          "after": 0.0,
          "delta": -0.4782,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.42,
          "after": 0.0,
          "delta": -0.42,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.42,
          "after": 0.0,
          "delta": -0.42,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2483,
          "after": 0.333,
          "delta": 0.0847,
          "percent_delta": 0.3411,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.3179,
          "after": 0.333,
          "delta": 0.0151,
          "percent_delta": 0.0475,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3294,
          "after": 0.333,
          "delta": 0.0036,
          "percent_delta": 0.0109,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 2,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2483,
          "after": 0.333,
          "delta": 0.0847,
          "percent_delta": 0.3411,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 2.0,
          "delta": 2.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2483,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.3179,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3294,
        "predicted_SO": 2.0,
        "predicted_SS": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2483,
          "delta": -0.0847,
          "percent_delta": -0.2544,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.3179,
          "delta": -0.0151,
          "percent_delta": -0.0453,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3294,
          "delta": -0.0036,
          "percent_delta": -0.0107,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.2483,
          "delta": -0.0847,
          "percent_delta": -0.2544,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.1,
        "after": 0.0,
        "delta": -0.1,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.9,
        "after": 3.0,
        "delta": 0.1,
        "percent_delta": 0.0345,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.279,
        "after": 0.2483,
        "delta": -0.0307,
        "percent_delta": -0.11,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.3,
        "after": 1.0,
        "delta": 0.7,
        "percent_delta": 2.3333,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.72,
        "after": 0.0,
        "delta": -0.72,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.06,
        "after": 0.0,
        "delta": -0.06,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.336,
        "after": 0.3179,
        "delta": -0.0181,
        "percent_delta": -0.0539,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.45,
        "after": 0.0,
        "delta": -0.45,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.28,
        "after": 0.0,
        "delta": -0.28,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.358,
        "after": 0.3294,
        "delta": -0.0286,
        "percent_delta": -0.0799,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.45,
        "after": 2.0,
        "delta": 1.55,
        "percent_delta": 3.4444,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 3,
      "deboosted_metrics": 8,
      "better_metrics": 2,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.45,
        "after": 2.0,
        "delta": 1.55,
        "percent_delta": 3.4444,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_H",
        "before": 0.72,
        "after": 0.0,
        "delta": -0.72,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.100-
predicted_3B0.000-
predicted_AB2.900-
predicted_AVG0.279-
predicted_BB0.300-
predicted_H0.720-
predicted_HR0.060-
predicted_OBP0.336-
predicted_R0.450-
predicted_RBI0.280-
predicted_SLG0.358-
predicted_SO0.450-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.1000.000
predicted_3B0.0010.001
predicted_AB3.0300.130
predicted_AVG0.278-0.001
predicted_BB0.3140.014
predicted_H0.7890.069
predicted_HBP0.006-
predicted_HR0.050-0.010
predicted_OBP0.3400.004
predicted_R0.4560.006
predicted_RBI0.265-0.015
predicted_SLG0.352-0.006
predicted_SO0.4710.021
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1000.000
predicted_3B0.0010.000
predicted_AB3.0300.000
predicted_AVG0.248-0.030
predicted_BB0.309-0.005
predicted_H0.752-0.037
predicted_HBP0.0060.000
predicted_HR0.048-0.002
predicted_OBP0.318-0.022
predicted_R0.420-0.036
predicted_RBI0.244-0.021
predicted_SLG0.329-0.022
predicted_SO0.4780.007
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.03), rates preserved: AVG=0.248 HR/AB=0.016

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO0.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO0.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.100
predicted_3B0.000-0.001
predicted_AB3.000-0.030
predicted_AVG0.3330.085
predicted_BB0.000-0.309
predicted_H1.0000.248
predicted_HR0.000-0.048
predicted_OBP0.3330.015
predicted_R0.000-0.420
predicted_RBI0.000-0.244
predicted_SLG0.3330.004
predicted_SO0.000-0.478
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB1.0001.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO2.0002.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 40
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0006.0000.0000.0000.0000.0002.0002.0002.0000.33330.40000.33330.33330.00000.00000.11110.1111
last_100.2010-31.0008.0001.0000.0000.0000.0005.0004.0004.0000.25810.34290.29030.25810.00000.00000.12900.1290
season0.6040-116.00032.0004.0000.0001.00012.00018.00012.00018.0000.27590.34380.33620.27590.00860.10350.10350.1552
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1010
predicted_3B0.0020
predicted_AB3.2290
predicted_AVG0.2775
predicted_BB0.3350
predicted_H0.8960
predicted_HBP0.0060
predicted_HR0.0350
predicted_OBP0.3470
predicted_R0.4660
predicted_RBI0.2430
predicted_SLG0.3423
predicted_SO0.5040
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.10000.10100.1004model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB2.90003.22903.0298model_form_blend
predicted_AVG0.27900.27750.2784model_form_blend
predicted_BB0.30000.33500.3138model_form_blend
predicted_H0.72000.89600.7894model_form_blend
predicted_HBP-0.00600.0060form_only
predicted_HR0.06000.03500.0501model_form_blend
predicted_OBP0.33600.34700.3403model_form_blend
predicted_R0.45000.46600.4563model_form_blend
predicted_RBI0.28000.24300.2654model_form_blend
predicted_SLG0.35800.34230.3518model_form_blend
predicted_SO0.45000.50400.4713model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date90
Season rows before report date90
Report year2026
Profile rows used40
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB1
SO2
SF0
HBP0
season_avg0.276

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB2
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB2
Hitting_AVG0.5
Hitting_BB2
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB1
Hitting_battingOrder7
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260617_TOR@BOS
game_typefull
mlbID643396
playerID643396
playerNameIsiah Kiner-Falefa
pos2B
startedTrue
startingPosition3B
teamBOS
teamID4
game_date2026-06-17
sl_k_percent14.0
sl_bb_percent9.3
sl_woba0.31
sl_xwoba0.319
sl_xba0.284
sl_xslg0.358
sl_sweet_spot_percent38.4
sl_barrel_batted_rate3.1
sl_hard_hit_percent26.3
sl_exit_velocity_avg82.2
sl_launch_angle_avg8.5
sl_whiff_percent17.8
sl_swing_percent49.5
Connor Wong (657136) · BATTER · C · Team BOS
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 75
All-history rows before 20260618: 75
System season_avg: 0.2760
Data season_avg (2026 season-to-date): 0.2477
Diff (system - data): 0.0283
System opponent_avg: 0.3330
System season_avg diverges from 2026 season-to-date by 0.0283. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.3080.0000.000Hitting_2B0.3070.000-0.3070.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.9234.0003.000Hitting_AB2.9602.0001.0402.000
predicted_AVG0.2620.2500.333Hitting_AVG0.2481.0000.002-0.750
predicted_BB0.3080.0000.000Hitting_BB0.3201.000-0.320-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.2701.0001.000Hitting_H0.7332.0000.267-1.000
predicted_HR0.0200.0000.000Hitting_HR0.0000.0000.0000.000
predicted_OBP0.3390.2500.333Hitting_OBP0.3431.000-0.093-0.750
predicted_R0.3850.0000.000Hitting_R0.3200.000-0.3200.000
predicted_RBI0.1500.0000.000Hitting_RBI0.4270.000-0.4270.000
predicted_SLG0.3880.2500.333Hitting_SLG0.3511.000-0.101-0.750
predicted_SO0.7311.0001.000Hitting_SO0.7200.0000.2801.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics3
Deboosted Metrics7
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_AB: 2.9230 -> 4.0000 (boost 1.0770, better)
Biggest Deboostpredicted_R: 0.3850 -> 0.0000 (deboost -0.3850, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend77070predicted_H: 0.2700 -> 0.5085 (boost 0.2385, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.3946 -> 0.2822 (deboost -0.1124, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling61506predicted_SO: 0.7642 -> 1.0000 (boost 0.2358, worse)predicted_H: 0.4846 -> 0.0000 (deboost -0.4846, worse)AB rounded to 3 (raw=2.99), rates preserved: AVG=0.162 HR/AB=0.007
5consistency_constraints21111predicted_H: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_R: 0.4079 -> 0.0000 (deboost -0.4079, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.1618 -> 0.3330 (boost 0.1712, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference11010predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.1618 (deboost -0.1712, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "657136",
  "player_name": "Connor Wong",
  "position": "C",
  "team": "BOS",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.308,
        "predicted_3B": 0.0,
        "predicted_AB": 2.923,
        "predicted_AVG": 0.262,
        "predicted_BB": 0.308,
        "predicted_H": 0.27,
        "predicted_HR": 0.02,
        "predicted_OBP": 0.339,
        "predicted_R": 0.385,
        "predicted_RBI": 0.15,
        "predicted_SLG": 0.388,
        "predicted_SO": 0.731
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2934,
        "predicted_3B": 0.0011,
        "predicted_AB": 2.9943,
        "predicted_AVG": 0.2728,
        "predicted_BB": 0.3343,
        "predicted_H": 0.5085,
        "predicted_HBP": 0.114,
        "predicted_HR": 0.0226,
        "predicted_OBP": 0.356,
        "predicted_R": 0.4431,
        "predicted_RBI": 0.2198,
        "predicted_SLG": 0.3946,
        "predicted_SO": 0.7531
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.308,
          "after": 0.2934,
          "delta": -0.0146,
          "percent_delta": -0.0474,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0011,
          "delta": 0.0011,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.923,
          "after": 2.9943,
          "delta": 0.0713,
          "percent_delta": 0.0244,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.262,
          "after": 0.2728,
          "delta": 0.0108,
          "percent_delta": 0.0412,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.308,
          "after": 0.3343,
          "delta": 0.0263,
          "percent_delta": 0.0854,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.27,
          "after": 0.5085,
          "delta": 0.2385,
          "percent_delta": 0.8833,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.02,
          "after": 0.0226,
          "delta": 0.0026,
          "percent_delta": 0.13,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.339,
          "after": 0.356,
          "delta": 0.017,
          "percent_delta": 0.0501,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.385,
          "after": 0.4431,
          "delta": 0.0581,
          "percent_delta": 0.1509,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.15,
          "after": 0.2198,
          "delta": 0.0698,
          "percent_delta": 0.4653,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SLG",
          "before": 0.388,
          "after": 0.3946,
          "delta": 0.0066,
          "percent_delta": 0.017,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.731,
          "after": 0.7531,
          "delta": 0.0221,
          "percent_delta": 0.0302,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 7,
        "deboosted_metrics": 0,
        "better_metrics": 7,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.27,
          "after": 0.5085,
          "delta": 0.2385,
          "percent_delta": 0.8833,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 26
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2934,
        "predicted_3B": 0.0011,
        "predicted_AB": 2.9943,
        "predicted_AVG": 0.1618,
        "predicted_BB": 0.3294,
        "predicted_H": 0.4846,
        "predicted_HBP": 0.114,
        "predicted_HR": 0.0216,
        "predicted_OBP": 0.2449,
        "predicted_R": 0.4079,
        "predicted_RBI": 0.2023,
        "predicted_SLG": 0.2822,
        "predicted_SO": 0.7642
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2934,
          "after": 0.2934,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0011,
          "after": 0.0011,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9943,
          "after": 2.9943,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2728,
          "after": 0.1618,
          "delta": -0.111,
          "percent_delta": -0.4069,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3343,
          "after": 0.3294,
          "delta": -0.0049,
          "percent_delta": -0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.5085,
          "after": 0.4846,
          "delta": -0.0239,
          "percent_delta": -0.047,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.114,
          "after": 0.114,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0226,
          "after": 0.0216,
          "delta": -0.001,
          "percent_delta": -0.0442,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.356,
          "after": 0.2449,
          "delta": -0.1111,
          "percent_delta": -0.3121,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.4431,
          "after": 0.4079,
          "delta": -0.0352,
          "percent_delta": -0.0794,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2198,
          "after": 0.2023,
          "delta": -0.0175,
          "percent_delta": -0.0796,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3946,
          "after": 0.2822,
          "delta": -0.1124,
          "percent_delta": -0.2848,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7531,
          "after": 0.7642,
          "delta": 0.0111,
          "percent_delta": 0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3946,
          "after": 0.2822,
          "delta": -0.1124,
          "percent_delta": -0.2848,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.99), rates preserved: AVG=0.162 HR/AB=0.007",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2934,
          "after": 0.0,
          "delta": -0.2934,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0011,
          "after": 0.0,
          "delta": -0.0011,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9943,
          "after": 3.0,
          "delta": 0.0057,
          "percent_delta": 0.0019,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.3294,
          "after": 0.0,
          "delta": -0.3294,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.4846,
          "after": 0.0,
          "delta": -0.4846,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.114,
          "after": 0.0,
          "delta": -0.114,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.0216,
          "after": 0.0,
          "delta": -0.0216,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.2023,
          "after": 0.0,
          "delta": -0.2023,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.7642,
          "after": 1.0,
          "delta": 0.2358,
          "percent_delta": 0.3086,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 1,
        "deboosted_metrics": 5,
        "better_metrics": 0,
        "worse_metrics": 6,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.7642,
          "after": 1.0,
          "delta": 0.2358,
          "percent_delta": 0.3086,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 0.4846,
          "after": 0.0,
          "delta": -0.4846,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4079,
          "after": 0.0,
          "delta": -0.4079,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4079,
          "after": 0.0,
          "delta": -0.4079,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1618,
          "after": 0.333,
          "delta": 0.1712,
          "percent_delta": 1.0581,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2449,
          "after": 0.333,
          "delta": 0.0881,
          "percent_delta": 0.3597,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2822,
          "after": 0.333,
          "delta": 0.0508,
          "percent_delta": 0.18,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1618,
          "after": 0.333,
          "delta": 0.1712,
          "percent_delta": 1.0581,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.1618,
        "predicted_BB": 0.0,
        "predicted_C": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2449,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.2822,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1618,
          "delta": -0.1712,
          "percent_delta": -0.514,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2449,
          "delta": -0.0881,
          "percent_delta": -0.2646,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.2822,
          "delta": -0.0508,
          "percent_delta": -0.1525,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1618,
          "delta": -0.1712,
          "percent_delta": -0.514,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.308,
        "after": 0.0,
        "delta": -0.308,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.923,
        "after": 4.0,
        "delta": 1.077,
        "percent_delta": 0.3685,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.262,
        "after": 0.1618,
        "delta": -0.1002,
        "percent_delta": -0.3824,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.308,
        "after": 0.0,
        "delta": -0.308,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.27,
        "after": 1.0,
        "delta": 0.73,
        "percent_delta": 2.7037,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.02,
        "after": 0.0,
        "delta": -0.02,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_OBP",
        "before": 0.339,
        "after": 0.2449,
        "delta": -0.0941,
        "percent_delta": -0.2776,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.385,
        "after": 0.0,
        "delta": -0.385,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.15,
        "after": 0.0,
        "delta": -0.15,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.388,
        "after": 0.2822,
        "delta": -0.1058,
        "percent_delta": -0.2727,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.731,
        "after": 1.0,
        "delta": 0.269,
        "percent_delta": 0.368,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 3,
      "deboosted_metrics": 7,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 2.923,
        "after": 4.0,
        "delta": 1.077,
        "percent_delta": 0.3685,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_R",
        "before": 0.385,
        "after": 0.0,
        "delta": -0.385,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.308-
predicted_3B0.000-
predicted_AB2.923-
predicted_AVG0.262-
predicted_BB0.308-
predicted_H0.270-
predicted_HR0.020-
predicted_OBP0.339-
predicted_R0.385-
predicted_RBI0.150-
predicted_SLG0.388-
predicted_SO0.731-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.293-0.015
predicted_3B0.0010.001
predicted_AB2.9940.071
predicted_AVG0.2730.011
predicted_BB0.3340.026
predicted_H0.5080.238
predicted_HBP0.114-
predicted_HR0.0230.003
predicted_OBP0.3560.017
predicted_R0.4430.058
predicted_RBI0.2200.070
predicted_SLG0.3950.007
predicted_SO0.7530.022
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2930.000
predicted_3B0.0010.000
predicted_AB2.9940.000
predicted_AVG0.162-0.111
predicted_BB0.329-0.005
predicted_H0.485-0.024
predicted_HBP0.1140.000
predicted_HR0.022-0.001
predicted_OBP0.245-0.111
predicted_R0.408-0.035
predicted_RBI0.202-0.017
predicted_SLG0.282-0.112
predicted_SO0.7640.011
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.99), rates preserved: AVG=0.162 HR/AB=0.007

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H0.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0001.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.293
predicted_3B0.000-0.001
predicted_AB3.0000.006
predicted_AVG0.3330.171
predicted_BB0.000-0.329
predicted_H1.0000.515
predicted_HR0.000-0.022
predicted_OBP0.3330.088
predicted_R0.000-0.408
predicted_RBI0.000-0.202
predicted_SLG0.3330.051
predicted_SO1.0000.236
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 26
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-13.0005.0001.0000.0000.0000.0004.0003.0003.0000.38460.52940.46150.38460.00000.00000.23080.2308
last_100.2010-29.0009.0003.0000.0000.0003.0007.0004.00010.0000.31030.41180.41380.31030.00000.10350.13790.3448
season0.6026-76.00021.0008.0000.0000.00010.00010.0008.00019.0000.27630.36780.38160.27630.00000.13160.10530.2500
Weighted Prediction From Real Data
MetricValue
predicted_2B0.2690
predicted_3B0.0030
predicted_AB3.1130
predicted_AVG0.2908
predicted_BB0.3780
predicted_H0.9060
predicted_HBP0.1140
predicted_HR0.0270
predicted_OBP0.3844
predicted_R0.5400
predicted_RBI0.3360
predicted_SLG0.4055
predicted_SO0.7900
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.30800.26900.2934model_form_blend
predicted_3B0.00000.00300.0011model_form_blend
predicted_AB2.92303.11302.9943model_form_blend
predicted_AVG0.26200.29080.2728model_form_blend
predicted_BB0.30800.37800.3343model_form_blend
predicted_H0.27000.90600.5085model_form_blend
predicted_HBP-0.11400.1140form_only
predicted_HR0.02000.02700.0226model_form_blend
predicted_OBP0.33900.38440.3560model_form_blend
predicted_R0.38500.54000.4431model_form_blend
predicted_RBI0.15000.33600.2198model_form_blend
predicted_SLG0.38800.40550.3946model_form_blend
predicted_SO0.73100.79000.7531model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date75
Season rows before report date75
Report year2026
Profile rows used26
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.276

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB1
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB2
Hitting_AVG1.0
Hitting_BB1
Hitting_GIDP0
Hitting_H2
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB2
Hitting_battingOrder9
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedC
gameID20260616_TOR@BOS
game_typefull
mlbID657136
playerID657136
playerNameConnor Wong
posC
startedTrue
startingPositionC
teamBOS
teamID4
game_date2026-06-16
sl_k_percent21.3
sl_bb_percent9.0
sl_woba0.34
sl_xwoba0.312
sl_xba0.24
sl_xslg0.351
sl_sweet_spot_percent30.5
sl_barrel_batted_rate3.4
sl_hard_hit_percent37.3
sl_exit_velocity_avg87.3
sl_launch_angle_avg10.9
sl_whiff_percent24.5
sl_swing_percent46.5
Caleb Durbin (702332) · BATTER · 3B · Team BOS
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 186
All-history rows before 20260618: 186
System season_avg: 0.1900
Data season_avg (2026 season-to-date): 0.1905
Diff (system - data): -0.0005
System opponent_avg: 0.1430

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2100.0000.000Hitting_2B0.2200.000-0.2200.000
predicted_3B0.0160.0000.000Hitting_3B0.0050.000-0.0050.000
predicted_AB3.3064.0003.000Hitting_AB3.3874.0000.6130.000
predicted_AVG0.2280.2500.333Hitting_AVG0.1900.0000.0600.250
predicted_BB0.2100.0000.000Hitting_BB0.2580.000-0.2580.000
predicted_CS-0.0000.000BaseRunning_CS0.0430.000-0.0430.000
predicted_H0.7101.0001.000Hitting_H0.6450.0000.3551.000
predicted_HR0.1200.0000.000Hitting_HR0.0380.000-0.0380.000
predicted_OBP0.2630.2500.333Hitting_OBP0.2640.000-0.0140.250
predicted_R0.3390.0000.000Hitting_R0.4030.000-0.4030.000
predicted_RBI0.4100.0000.000Hitting_RBI0.4190.000-0.4190.000
predicted_SLG0.3650.2500.333Hitting_SLG0.2920.000-0.0420.250
predicted_SO0.5161.0000.000Hitting_SO0.5380.0000.4621.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics3
Deboosted Metrics7
Better Metrics2
Worse Metrics8
Biggest Boostpredicted_AB: 3.3060 -> 4.0000 (boost 0.6940, better)
Biggest Deboostpredicted_RBI: 0.4100 -> 0.0000 (deboost -0.4100, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend31212predicted_AB: 3.3060 -> 3.3621 (boost 0.0561, better)predicted_AVG: 0.2280 -> 0.2125 (deboost -0.0155, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot20202-predicted_AVG: 0.2125 -> 0.1949 (deboost -0.0176, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71625predicted_H: 0.6553 -> 1.0000 (boost 0.3447, better)predicted_SO: 0.5224 -> 0.0000 (deboost -0.5224, better)AB rounded to 3 (raw=3.36), rates preserved: AVG=0.195 HR/AB=0.037
5consistency_constraints10101-predicted_R: 0.3399 -> 0.0000 (deboost -0.3399, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context32121predicted_AVG: 0.1949 -> 0.3330 (boost 0.1381, better)predicted_SLG: 0.3671 -> 0.3330 (deboost -0.0341, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference22011predicted_AB: 3.0000 -> 4.0000 (boost 1.0000, better)-Attached simulation box score without overwriting model prediction
8current_json_final31212predicted_SLG: 0.3330 -> 0.3671 (boost 0.0341, better)predicted_AVG: 0.3330 -> 0.1949 (deboost -0.1381, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "702332",
  "player_name": "Caleb Durbin",
  "position": "3B",
  "team": "BOS",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.21,
        "predicted_3B": 0.016,
        "predicted_AB": 3.306,
        "predicted_AVG": 0.228,
        "predicted_BB": 0.21,
        "predicted_H": 0.71,
        "predicted_HR": 0.12,
        "predicted_OBP": 0.263,
        "predicted_R": 0.339,
        "predicted_RBI": 0.41,
        "predicted_SLG": 0.365,
        "predicted_SO": 0.516
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1788,
        "predicted_3B": 0.0135,
        "predicted_AB": 3.3621,
        "predicted_AVG": 0.2125,
        "predicted_BB": 0.2125,
        "predicted_H": 0.6876,
        "predicted_HBP": 0.039,
        "predicted_HR": 0.13,
        "predicted_OBP": 0.2546,
        "predicted_R": 0.3693,
        "predicted_RBI": 0.422,
        "predicted_SLG": 0.3635,
        "predicted_SO": 0.5148
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.21,
          "after": 0.1788,
          "delta": -0.0312,
          "percent_delta": -0.1486,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.016,
          "after": 0.0135,
          "delta": -0.0025,
          "percent_delta": -0.1563,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.306,
          "after": 3.3621,
          "delta": 0.0561,
          "percent_delta": 0.017,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.228,
          "after": 0.2125,
          "delta": -0.0155,
          "percent_delta": -0.068,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.21,
          "after": 0.2125,
          "delta": 0.0025,
          "percent_delta": 0.0119,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.71,
          "after": 0.6876,
          "delta": -0.0224,
          "percent_delta": -0.0315,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.12,
          "after": 0.13,
          "delta": 0.01,
          "percent_delta": 0.0833,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.263,
          "after": 0.2546,
          "delta": -0.0084,
          "percent_delta": -0.0319,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.339,
          "after": 0.3693,
          "delta": 0.0303,
          "percent_delta": 0.0894,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.41,
          "after": 0.422,
          "delta": 0.012,
          "percent_delta": 0.0293,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.365,
          "after": 0.3635,
          "delta": -0.0015,
          "percent_delta": -0.0041,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.516,
          "after": 0.5148,
          "delta": -0.0012,
          "percent_delta": -0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.306,
          "after": 3.3621,
          "delta": 0.0561,
          "percent_delta": 0.017,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.228,
          "after": 0.2125,
          "delta": -0.0155,
          "percent_delta": -0.068,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 62
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1788,
        "predicted_3B": 0.0135,
        "predicted_AB": 3.3621,
        "predicted_AVG": 0.1949,
        "predicted_BB": 0.2094,
        "predicted_H": 0.6553,
        "predicted_HBP": 0.039,
        "predicted_HR": 0.1244,
        "predicted_OBP": 0.2421,
        "predicted_R": 0.3399,
        "predicted_RBI": 0.3885,
        "predicted_SLG": 0.3671,
        "predicted_SO": 0.5224
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1788,
          "after": 0.1788,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0135,
          "after": 0.0135,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.3621,
          "after": 3.3621,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2125,
          "after": 0.1949,
          "delta": -0.0176,
          "percent_delta": -0.0828,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2125,
          "after": 0.2094,
          "delta": -0.0031,
          "percent_delta": -0.0146,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.6876,
          "after": 0.6553,
          "delta": -0.0323,
          "percent_delta": -0.047,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.039,
          "after": 0.039,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.13,
          "after": 0.1244,
          "delta": -0.0056,
          "percent_delta": -0.0431,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2546,
          "after": 0.2421,
          "delta": -0.0125,
          "percent_delta": -0.0491,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.3693,
          "after": 0.3399,
          "delta": -0.0294,
          "percent_delta": -0.0796,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.422,
          "after": 0.3885,
          "delta": -0.0335,
          "percent_delta": -0.0794,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3635,
          "after": 0.3671,
          "delta": 0.0036,
          "percent_delta": 0.0099,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.5148,
          "after": 0.5224,
          "delta": 0.0076,
          "percent_delta": 0.0148,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 0,
        "deboosted_metrics": 2,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.2125,
          "after": 0.1949,
          "delta": -0.0176,
          "percent_delta": -0.0828,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=3.36), rates preserved: AVG=0.195 HR/AB=0.037",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1788,
          "after": 0.0,
          "delta": -0.1788,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0135,
          "after": 0.0,
          "delta": -0.0135,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.3621,
          "after": 3.0,
          "delta": -0.3621,
          "percent_delta": -0.1077,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2094,
          "after": 0.0,
          "delta": -0.2094,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.6553,
          "after": 1.0,
          "delta": 0.3447,
          "percent_delta": 0.526,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.039,
          "after": 0.0,
          "delta": -0.039,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.1244,
          "after": 0.0,
          "delta": -0.1244,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.3885,
          "after": 0.0,
          "delta": -0.3885,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.5224,
          "after": 0.0,
          "delta": -0.5224,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.6553,
          "after": 1.0,
          "delta": 0.3447,
          "percent_delta": 0.526,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SO",
          "before": 0.5224,
          "after": 0.0,
          "delta": -0.5224,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.3399,
          "after": 0.0,
          "delta": -0.3399,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.3399,
          "after": 0.0,
          "delta": -0.3399,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1949,
          "after": 0.333,
          "delta": 0.1381,
          "percent_delta": 0.7086,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2421,
          "after": 0.333,
          "delta": 0.0909,
          "percent_delta": 0.3755,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3671,
          "after": 0.333,
          "delta": -0.0341,
          "percent_delta": -0.0929,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1949,
          "after": 0.333,
          "delta": 0.1381,
          "percent_delta": 0.7086,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3671,
          "after": 0.333,
          "delta": -0.0341,
          "percent_delta": -0.0929,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 4.0,
          "delta": 1.0,
          "percent_delta": 0.3333,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.1949,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.2421,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3671,
        "predicted_SO": 1.0,
        "predicted_TB": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1949,
          "delta": -0.1381,
          "percent_delta": -0.4147,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.2421,
          "delta": -0.0909,
          "percent_delta": -0.273,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3671,
          "delta": 0.0341,
          "percent_delta": 0.1025,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.3671,
          "delta": 0.0341,
          "percent_delta": 0.1025,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1949,
          "delta": -0.1381,
          "percent_delta": -0.4147,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.21,
        "after": 0.0,
        "delta": -0.21,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.016,
        "after": 0.0,
        "delta": -0.016,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 3.306,
        "after": 4.0,
        "delta": 0.694,
        "percent_delta": 0.2099,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.228,
        "after": 0.1949,
        "delta": -0.0331,
        "percent_delta": -0.1452,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.21,
        "after": 0.0,
        "delta": -0.21,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.71,
        "after": 1.0,
        "delta": 0.29,
        "percent_delta": 0.4085,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.12,
        "after": 0.0,
        "delta": -0.12,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.263,
        "after": 0.2421,
        "delta": -0.0209,
        "percent_delta": -0.0795,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.339,
        "after": 0.0,
        "delta": -0.339,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.41,
        "after": 0.0,
        "delta": -0.41,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.365,
        "after": 0.3671,
        "delta": 0.0021,
        "percent_delta": 0.0058,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.516,
        "after": 1.0,
        "delta": 0.484,
        "percent_delta": 0.938,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 3,
      "deboosted_metrics": 7,
      "better_metrics": 2,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_AB",
        "before": 3.306,
        "after": 4.0,
        "delta": 0.694,
        "percent_delta": 0.2099,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_RBI",
        "before": 0.41,
        "after": 0.0,
        "delta": -0.41,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.210-
predicted_3B0.016-
predicted_AB3.306-
predicted_AVG0.228-
predicted_BB0.210-
predicted_H0.710-
predicted_HR0.120-
predicted_OBP0.263-
predicted_R0.339-
predicted_RBI0.410-
predicted_SLG0.365-
predicted_SO0.516-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.179-0.031
predicted_3B0.013-0.003
predicted_AB3.3620.056
predicted_AVG0.212-0.016
predicted_BB0.2120.003
predicted_H0.688-0.022
predicted_HBP0.039-
predicted_HR0.1300.010
predicted_OBP0.255-0.008
predicted_R0.3690.030
predicted_RBI0.4220.012
predicted_SLG0.363-0.002
predicted_SO0.515-0.001
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1790.000
predicted_3B0.0130.000
predicted_AB3.3620.000
predicted_AVG0.195-0.018
predicted_BB0.209-0.003
predicted_H0.655-0.032
predicted_HBP0.0390.000
predicted_HR0.124-0.006
predicted_OBP0.242-0.012
predicted_R0.340-0.029
predicted_RBI0.389-0.033
predicted_SLG0.3670.004
predicted_SO0.5220.008
4. ab_floor_and_scaling

AB rounded to 3 (raw=3.36), rates preserved: AVG=0.195 HR/AB=0.037

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO0.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO0.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.179
predicted_3B0.000-0.013
predicted_AB3.000-0.362
predicted_AVG0.3330.138
predicted_BB0.000-0.209
predicted_H1.0000.345
predicted_HR0.000-0.124
predicted_OBP0.3330.091
predicted_R0.000-0.340
predicted_RBI0.000-0.389
predicted_SLG0.333-0.034
predicted_SO0.000-0.522
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0001.000
BB0.0000.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO1.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 62
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-18.0003.0000.0000.0002.0003.0003.0001.0002.0000.16670.20000.50000.16670.11110.16670.05560.1111
last_100.2010-34.0006.0000.0000.0002.0003.0004.0002.0004.0000.17650.21620.35290.17650.05880.08820.05880.1177
season0.6062-205.00039.00013.0001.0003.00026.00021.00013.00032.0000.19020.25000.30730.19020.01460.12680.06340.1561
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1350
predicted_3B0.0100
predicted_AB3.4410
predicted_AVG0.1908
predicted_BB0.2160
predicted_H0.6560
predicted_HBP0.0390
predicted_HR0.1440
predicted_OBP0.2427
predicted_R0.4120
predicted_RBI0.4390
predicted_SLG0.3614
predicted_SO0.5130
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.21000.13500.1788model_form_blend
predicted_3B0.01600.01000.0135model_form_blend
predicted_AB3.30603.44103.3621model_form_blend
predicted_AVG0.22800.19080.2125model_form_blend
predicted_BB0.21000.21600.2125model_form_blend
predicted_H0.71000.65600.6876model_form_blend
predicted_HBP-0.03900.0390form_only
predicted_HR0.12000.14400.1300model_form_blend
predicted_OBP0.26300.24270.2546model_form_blend
predicted_R0.33900.41200.3693model_form_blend
predicted_RBI0.41000.43900.4220model_form_blend
predicted_SLG0.36500.36140.3635model_form_blend
predicted_SO0.51600.51300.5148model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date186
Season rows before report date186
Report year2026
Profile rows used62
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB4
H1
2B0
3B0
HR0
R0
RBI0
BB0
SO1
SF0
HBP0
season_avg0.19

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder6
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed3B
gameID20260616_TOR@BOS
game_typefull
mlbID702332
playerID702332
playerNameCaleb Durbin
pos3B
startedTrue
startingPosition3B
teamBOS
teamID4
game_date2026-06-16
sl_k_percent14.2
sl_bb_percent5.8
sl_woba0.25
sl_xwoba0.28
sl_xba0.238
sl_xslg0.324
sl_sweet_spot_percent26.0
sl_barrel_batted_rate2.8
sl_hard_hit_percent29.9
sl_exit_velocity_avg85.0
sl_launch_angle_avg9.5
sl_whiff_percent14.7
sl_swing_percent45.2
Jarren Duran (680776) · BATTER · LF · Team BOS
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 237
All-history rows before 20260618: 237
System season_avg: 0.2130
Data season_avg (2026 season-to-date): 0.2146
Diff (system - data): -0.0016
System opponent_avg: 0.1490

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.1360.0000.000Hitting_2B0.1730.000-0.1730.000
predicted_3B0.0300.0000.000Hitting_3B0.0080.000-0.0080.000
predicted_AB4.1803.0004.000Hitting_AB4.1482.000-1.1481.000
predicted_AVG0.2230.3330.250Hitting_AVG0.2150.0000.1190.333
predicted_BB0.3031.0000.000Hitting_BB0.3502.0000.650-1.000
predicted_CS-0.0000.000BaseRunning_CS0.0000.0000.0000.000
predicted_H0.9301.0001.000Hitting_H0.8900.0000.1101.000
predicted_HR0.1900.0000.000Hitting_HR0.1690.000-0.1690.000
predicted_OBP0.2880.5000.250Hitting_OBP0.2840.5000.2160.000
predicted_R0.5300.0000.000Hitting_R0.5570.000-0.5570.000
predicted_RBI0.5200.0000.000Hitting_RBI0.5910.000-0.5910.000
predicted_SLG0.4060.3330.250Hitting_SLG0.3830.000-0.0490.333
predicted_SO1.2880.0001.000Hitting_SO1.2360.000-1.2360.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics11
Boosted Metrics2
Deboosted Metrics9
Better Metrics3
Worse Metrics8
Biggest Boostpredicted_BB: 0.3030 -> 1.0000 (boost 0.6970, better)
Biggest Deboostpredicted_SO: 1.2880 -> 0.0000 (deboost -1.2880, better)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend10101-predicted_AB: 4.1800 -> 4.1123 (deboost -0.0677, worse)Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_OBP: 0.2840 -> 0.2646 (deboost -0.0194, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling71625predicted_H: 0.8689 -> 1.0000 (boost 0.1311, better)predicted_RBI: 0.4841 -> 0.0000 (deboost -0.4841, worse)AB rounded to 4 (raw=4.18), rates preserved: AVG=0.208 HR/AB=0.046
5consistency_constraints10101-predicted_R: 0.4684 -> 0.0000 (deboost -0.4684, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context31212predicted_AVG: 0.2113 -> 0.2500 (boost 0.0387, better)predicted_SLG: 0.3935 -> 0.2500 (deboost -0.1435, worse)Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference31221predicted_BB: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_AB: 4.0000 -> 3.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final32121predicted_SLG: 0.2500 -> 0.3935 (boost 0.1435, better)predicted_AVG: 0.2500 -> 0.2113 (deboost -0.0387, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "680776",
  "player_name": "Jarren Duran",
  "position": "LF",
  "team": "BOS",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.136,
        "predicted_3B": 0.03,
        "predicted_AB": 4.18,
        "predicted_AVG": 0.223,
        "predicted_BB": 0.303,
        "predicted_H": 0.93,
        "predicted_HR": 0.19,
        "predicted_OBP": 0.288,
        "predicted_R": 0.53,
        "predicted_RBI": 0.52,
        "predicted_SLG": 0.406,
        "predicted_SO": 1.288
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.1174,
        "predicted_3B": 0.0249,
        "predicted_AB": 4.1123,
        "predicted_AVG": 0.222,
        "predicted_BB": 0.3022,
        "predicted_H": 0.9118,
        "predicted_HBP": 0.028,
        "predicted_HR": 0.2027,
        "predicted_OBP": 0.284,
        "predicted_R": 0.5089,
        "predicted_RBI": 0.5259,
        "predicted_SLG": 0.4105,
        "predicted_SO": 1.2491
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.136,
          "after": 0.1174,
          "delta": -0.0186,
          "percent_delta": -0.1368,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.03,
          "after": 0.0249,
          "delta": -0.0051,
          "percent_delta": -0.17,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.18,
          "after": 4.1123,
          "delta": -0.0677,
          "percent_delta": -0.0162,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_AVG",
          "before": 0.223,
          "after": 0.222,
          "delta": -0.001,
          "percent_delta": -0.0045,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.303,
          "after": 0.3022,
          "delta": -0.0008,
          "percent_delta": -0.0026,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.93,
          "after": 0.9118,
          "delta": -0.0182,
          "percent_delta": -0.0196,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.19,
          "after": 0.2027,
          "delta": 0.0127,
          "percent_delta": 0.0668,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.288,
          "after": 0.284,
          "delta": -0.004,
          "percent_delta": -0.0139,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.53,
          "after": 0.5089,
          "delta": -0.0211,
          "percent_delta": -0.0398,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.52,
          "after": 0.5259,
          "delta": 0.0059,
          "percent_delta": 0.0113,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.406,
          "after": 0.4105,
          "delta": 0.0045,
          "percent_delta": 0.0111,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.288,
          "after": 1.2491,
          "delta": -0.0389,
          "percent_delta": -0.0302,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.18,
          "after": 4.1123,
          "delta": -0.0677,
          "percent_delta": -0.0162,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 66
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.1174,
        "predicted_3B": 0.0249,
        "predicted_AB": 4.1123,
        "predicted_AVG": 0.2113,
        "predicted_BB": 0.2978,
        "predicted_H": 0.8689,
        "predicted_HBP": 0.028,
        "predicted_HR": 0.194,
        "predicted_OBP": 0.2646,
        "predicted_R": 0.4684,
        "predicted_RBI": 0.4841,
        "predicted_SLG": 0.3935,
        "predicted_SO": 1.2675
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1174,
          "after": 0.1174,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0249,
          "after": 0.0249,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.1123,
          "after": 4.1123,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.222,
          "after": 0.2113,
          "delta": -0.0107,
          "percent_delta": -0.0482,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.3022,
          "after": 0.2978,
          "delta": -0.0044,
          "percent_delta": -0.0146,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.9118,
          "after": 0.8689,
          "delta": -0.0429,
          "percent_delta": -0.047,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.028,
          "after": 0.028,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.2027,
          "after": 0.194,
          "delta": -0.0087,
          "percent_delta": -0.0429,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.284,
          "after": 0.2646,
          "delta": -0.0194,
          "percent_delta": -0.0683,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.5089,
          "after": 0.4684,
          "delta": -0.0405,
          "percent_delta": -0.0796,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.5259,
          "after": 0.4841,
          "delta": -0.0418,
          "percent_delta": -0.0795,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.4105,
          "after": 0.3935,
          "delta": -0.017,
          "percent_delta": -0.0414,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.2491,
          "after": 1.2675,
          "delta": 0.0184,
          "percent_delta": 0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_OBP",
          "before": 0.284,
          "after": 0.2646,
          "delta": -0.0194,
          "percent_delta": -0.0683,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 4 (raw=4.18), rates preserved: AVG=0.208 HR/AB=0.046",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.1174,
          "after": 0.0,
          "delta": -0.1174,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0249,
          "after": 0.0,
          "delta": -0.0249,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.1123,
          "after": 4.0,
          "delta": -0.1123,
          "percent_delta": -0.0273,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.2978,
          "after": 0.0,
          "delta": -0.2978,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.8689,
          "after": 1.0,
          "delta": 0.1311,
          "percent_delta": 0.1509,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.028,
          "after": 0.0,
          "delta": -0.028,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.194,
          "after": 0.0,
          "delta": -0.194,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.4841,
          "after": 0.0,
          "delta": -0.4841,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.2675,
          "after": 1.0,
          "delta": -0.2675,
          "percent_delta": -0.211,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 7,
        "boosted_metrics": 1,
        "deboosted_metrics": 6,
        "better_metrics": 2,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.8689,
          "after": 1.0,
          "delta": 0.1311,
          "percent_delta": 0.1509,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_RBI",
          "before": 0.4841,
          "after": 0.0,
          "delta": -0.4841,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.4684,
          "after": 0.0,
          "delta": -0.4684,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.4684,
          "after": 0.0,
          "delta": -0.4684,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 4.0,
        "predicted_AVG": 0.25,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.25,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.25,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 4.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2113,
          "after": 0.25,
          "delta": 0.0387,
          "percent_delta": 0.1832,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2646,
          "after": 0.25,
          "delta": -0.0146,
          "percent_delta": -0.0552,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3935,
          "after": 0.25,
          "delta": -0.1435,
          "percent_delta": -0.3647,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 1,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.2113,
          "after": 0.25,
          "delta": 0.0387,
          "percent_delta": 0.1832,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3935,
          "after": 0.25,
          "delta": -0.1435,
          "percent_delta": -0.3647,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "better",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 1,
        "deboosted_metrics": 2,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AB",
          "before": 4.0,
          "after": 3.0,
          "delta": -1.0,
          "percent_delta": -0.25,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.2113,
        "predicted_BB": 1.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_LF": 0.0,
        "predicted_OBP": 0.2646,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.3935,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2113,
          "delta": -0.0387,
          "percent_delta": -0.1548,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.25,
          "after": 0.2646,
          "delta": 0.0146,
          "percent_delta": 0.0582,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3935,
          "delta": 0.1435,
          "percent_delta": 0.574,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 2,
        "deboosted_metrics": 1,
        "better_metrics": 2,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_SLG",
          "before": 0.25,
          "after": 0.3935,
          "delta": 0.1435,
          "percent_delta": 0.574,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.25,
          "after": 0.2113,
          "delta": -0.0387,
          "percent_delta": -0.1548,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.136,
        "after": 0.0,
        "delta": -0.136,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.03,
        "after": 0.0,
        "delta": -0.03,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 4.18,
        "after": 3.0,
        "delta": -1.18,
        "percent_delta": -0.2823,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.223,
        "after": 0.2113,
        "delta": -0.0117,
        "percent_delta": -0.0525,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.303,
        "after": 1.0,
        "delta": 0.697,
        "percent_delta": 2.3003,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.93,
        "after": 1.0,
        "delta": 0.07,
        "percent_delta": 0.0753,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.19,
        "after": 0.0,
        "delta": -0.19,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_OBP",
        "before": 0.288,
        "after": 0.2646,
        "delta": -0.0234,
        "percent_delta": -0.0812,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.53,
        "after": 0.0,
        "delta": -0.53,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.52,
        "after": 0.0,
        "delta": -0.52,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.406,
        "after": 0.3935,
        "delta": -0.0125,
        "percent_delta": -0.0308,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 1.288,
        "after": 0.0,
        "delta": -1.288,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 11,
      "boosted_metrics": 2,
      "deboosted_metrics": 9,
      "better_metrics": 3,
      "worse_metrics": 8,
      "biggest_boost": {
        "metric": "predicted_BB",
        "before": 0.303,
        "after": 1.0,
        "delta": 0.697,
        "percent_delta": 2.3003,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_SO",
        "before": 1.288,
        "after": 0.0,
        "delta": -1.288,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "better",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.136-
predicted_3B0.030-
predicted_AB4.180-
predicted_AVG0.223-
predicted_BB0.303-
predicted_H0.930-
predicted_HR0.190-
predicted_OBP0.288-
predicted_R0.530-
predicted_RBI0.520-
predicted_SLG0.406-
predicted_SO1.288-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.117-0.019
predicted_3B0.025-0.005
predicted_AB4.112-0.068
predicted_AVG0.222-0.001
predicted_BB0.302-0.001
predicted_H0.912-0.018
predicted_HBP0.028-
predicted_HR0.2030.013
predicted_OBP0.284-0.004
predicted_R0.509-0.021
predicted_RBI0.5260.006
predicted_SLG0.4100.004
predicted_SO1.249-0.039
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.1170.000
predicted_3B0.0250.000
predicted_AB4.1120.000
predicted_AVG0.211-0.011
predicted_BB0.298-0.004
predicted_H0.869-0.043
predicted_HBP0.0280.000
predicted_HR0.194-0.009
predicted_OBP0.265-0.019
predicted_R0.468-0.041
predicted_RBI0.484-0.042
predicted_SLG0.394-0.017
predicted_SO1.2680.018
4. ab_floor_and_scaling

AB rounded to 4 (raw=4.18), rates preserved: AVG=0.208 HR/AB=0.046

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB4.000-
BB0.000-
H1.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB4.0000.000
BB0.0000.000
CS0.000-
H1.0000.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.117
predicted_3B0.000-0.025
predicted_AB4.000-0.112
predicted_AVG0.2500.039
predicted_BB0.000-0.298
predicted_H1.0000.131
predicted_HR0.000-0.194
predicted_OBP0.250-0.015
predicted_R0.000-0.468
predicted_RBI0.000-0.484
predicted_SLG0.250-0.144
predicted_SO1.000-0.268
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.000-1.000
BB1.0001.000
CS0.0000.000
H1.0000.000
HBP0.0000.000
HR0.0000.000
PA4.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO0.000-1.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 66
Reference playing time: 4.180
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-20.0005.0000.0000.0002.0003.0002.0002.0005.0000.25000.31820.55000.25000.10000.15000.10000.2500
last_100.2010-40.0008.0000.0000.0002.0004.0004.0002.00013.0000.20000.23810.35000.20000.05000.10000.05000.3250
season0.6066-268.00057.0009.0002.00012.00037.00035.00020.00085.0000.21270.27300.39550.21270.04480.13810.07460.3172
Weighted Prediction From Real Data
MetricValue
predicted_2B0.0920
predicted_3B0.0180
predicted_AB4.0200
predicted_AVG0.2207
predicted_BB0.3010
predicted_H0.8870
predicted_HBP0.0280
predicted_HR0.2200
predicted_OBP0.2786
predicted_R0.4800
predicted_RBI0.5340
predicted_SLG0.4166
predicted_SO1.1960
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.13600.09200.1174model_form_blend
predicted_3B0.03000.01800.0249model_form_blend
predicted_AB4.18004.02004.1123model_form_blend
predicted_AVG0.22300.22070.2220model_form_blend
predicted_BB0.30300.30100.3022model_form_blend
predicted_H0.93000.88700.9118model_form_blend
predicted_HBP-0.02800.0280form_only
predicted_HR0.19000.22000.2027model_form_blend
predicted_OBP0.28800.27860.2840model_form_blend
predicted_R0.53000.48000.5089model_form_blend
predicted_RBI0.52000.53400.5259model_form_blend
predicted_SLG0.40600.41660.4105model_form_blend
predicted_SO1.28801.19601.2491model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date237
Season rows before report date237
Report year2026
Profile rows used66
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA4
AB3
H1
2B0
3B0
HR0
R0
RBI0
BB1
SO0
SF0
HBP0
season_avg0.213

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB2
Hitting_AVG0.0
Hitting_BB2
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder5
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayedLF
gameID20260617_TOR@BOS
game_typefull
mlbID680776
playerID680776
playerNameJarren Duran
posLF
startedTrue
startingPositionLF
teamBOS
teamID4
game_date2026-06-17
sl_k_percent29.0
sl_bb_percent6.8
sl_woba0.293
sl_xwoba0.299
sl_xba0.23
sl_xslg0.395
sl_sweet_spot_percent31.9
sl_barrel_batted_rate11.5
sl_hard_hit_percent39.5
sl_exit_velocity_avg90.0
sl_launch_angle_avg13.9
sl_whiff_percent35.1
sl_swing_percent48.6
Andruw Monasterio (655316) · BATTER · 2B · Team BOS
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 105
All-history rows before 20260618: 105
System season_avg: 0.2410
Data season_avg (2026 season-to-date): 0.2577
Diff (system - data): -0.0167
System opponent_avg: 0.1430
System season_avg diverges from 2026 season-to-date by -0.0167. This usually means mixed-season window logic.

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_2B0.2700.0000.000Hitting_2B0.3430.000-0.3430.000
predicted_3B0.0000.0000.000Hitting_3B0.0000.0000.0000.000
predicted_AB2.9193.0003.000Hitting_AB3.4004.000-0.400-1.000
predicted_AVG0.2350.0000.333Hitting_AVG0.2580.250-0.258-0.250
predicted_BB0.1620.0000.000Hitting_BB0.2480.000-0.2480.000
predicted_CS-0.0000.000BaseRunning_CS0.0950.000-0.0950.000
predicted_H0.2400.0001.000Hitting_H0.8761.000-0.876-1.000
predicted_HR0.0300.0000.000Hitting_HR0.0670.000-0.0670.000
predicted_OBP0.2510.0000.333Hitting_OBP0.3080.250-0.308-0.250
predicted_R0.2970.0000.000Hitting_R0.4380.000-0.4380.000
predicted_RBI0.1300.0000.000Hitting_RBI0.4290.000-0.4290.000
predicted_SB-0.0000.000BaseRunning_SB0.0380.000-0.0380.000
predicted_SLG0.3590.0000.333Hitting_SLG0.4170.250-0.417-0.250
predicted_SO0.7842.0001.000Hitting_SO0.8002.0001.2000.000

Boost/Deboost Impact Trace

Impact ItemValue
Fromxgboost_raw
Tocurrent_json_final
Dominant Effectworse
Changed Metrics10
Boosted Metrics2
Deboosted Metrics8
Better Metrics1
Worse Metrics9
Biggest Boostpredicted_SO: 0.7840 -> 2.0000 (boost 1.2160, worse)
Biggest Deboostpredicted_R: 0.2970 -> 0.0000 (deboost -0.2970, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1xgboost_raw00000--Raw model output with missing event categories filled from season-profile fallback
2weighted_recent_form_blend22011predicted_H: 0.2400 -> 0.4057 (boost 0.1657, better)-Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.
3team_form_snapshot30303-predicted_SLG: 0.3602 -> 0.2579 (deboost -0.1023, worse)Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)
4ab_floor_and_scaling62415predicted_SO: 0.8918 -> 1.0000 (boost 0.1082, worse)predicted_H: 0.3866 -> 0.0000 (deboost -0.3866, worse)AB rounded to 3 (raw=2.93), rates preserved: AVG=0.132 HR/AB=0.014
5consistency_constraints21111predicted_H: 0.0000 -> 1.0000 (boost 1.0000, better)predicted_R: 0.2598 -> 0.0000 (deboost -0.2598, worse)Enforced H<=AB, HR<=H, safety nets, derived R
6embedded_savant_player_context33030predicted_AVG: 0.1322 -> 0.3330 (boost 0.2008, better)-Player Savant profile contributed to the team run-environment adjustment against the opposing starter
7simulation_box_score_reference21102predicted_SO: 1.0000 -> 2.0000 (boost 1.0000, worse)predicted_H: 1.0000 -> 0.0000 (deboost -1.0000, worse)Attached simulation box score without overwriting model prediction
8current_json_final30303-predicted_AVG: 0.3330 -> 0.1322 (deboost -0.2008, worse)Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "batter",
  "player_id": "655316",
  "player_name": "Andruw Monasterio",
  "position": "2B",
  "team": "BOS",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "xgboost_raw",
      "description": "Raw model output with missing event categories filled from season-profile fallback",
      "stats": {
        "predicted_2B": 0.27,
        "predicted_3B": 0.0,
        "predicted_AB": 2.919,
        "predicted_AVG": 0.235,
        "predicted_BB": 0.162,
        "predicted_H": 0.24,
        "predicted_HR": 0.03,
        "predicted_OBP": 0.251,
        "predicted_R": 0.297,
        "predicted_RBI": 0.13,
        "predicted_SLG": 0.359,
        "predicted_SO": 0.784
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "weighted_recent_form_blend",
      "description": "Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.",
      "stats": {
        "predicted_2B": 0.2412,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.9256,
        "predicted_AVG": 0.2319,
        "predicted_BB": 0.1472,
        "predicted_H": 0.4057,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.0436,
        "predicted_OBP": 0.2542,
        "predicted_R": 0.2822,
        "predicted_RBI": 0.1732,
        "predicted_SLG": 0.3602,
        "predicted_SO": 0.8789
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.27,
          "after": 0.2412,
          "delta": -0.0288,
          "percent_delta": -0.1067,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0008,
          "delta": 0.0008,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.919,
          "after": 2.9256,
          "delta": 0.0066,
          "percent_delta": 0.0023,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.235,
          "after": 0.2319,
          "delta": -0.0031,
          "percent_delta": -0.0132,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.162,
          "after": 0.1472,
          "delta": -0.0148,
          "percent_delta": -0.0914,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.24,
          "after": 0.4057,
          "delta": 0.1657,
          "percent_delta": 0.6904,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HR",
          "before": 0.03,
          "after": 0.0436,
          "delta": 0.0136,
          "percent_delta": 0.4533,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.251,
          "after": 0.2542,
          "delta": 0.0032,
          "percent_delta": 0.0127,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.297,
          "after": 0.2822,
          "delta": -0.0148,
          "percent_delta": -0.0498,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.13,
          "after": 0.1732,
          "delta": 0.0432,
          "percent_delta": 0.3323,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.359,
          "after": 0.3602,
          "delta": 0.0012,
          "percent_delta": 0.0033,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.784,
          "after": 0.8789,
          "delta": 0.0949,
          "percent_delta": 0.121,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 2,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.24,
          "after": 0.4057,
          "delta": 0.1657,
          "percent_delta": 0.6904,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {
        "xgboost_raw": 0.55,
        "weighted_form": 0.45,
        "form_windows": {
          "last_5": 0.2,
          "last_10": 0.2,
          "season": 0.6
        }
      },
      "window_games": {
        "last_5": 5,
        "last_10": 10,
        "season": 37
      }
    },
    {
      "index": 3,
      "step": "team_form_snapshot",
      "description": "Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)",
      "stats": {
        "predicted_2B": 0.2412,
        "predicted_3B": 0.0008,
        "predicted_AB": 2.9256,
        "predicted_AVG": 0.1322,
        "predicted_BB": 0.145,
        "predicted_H": 0.3866,
        "predicted_HBP": 0.006,
        "predicted_HR": 0.0417,
        "predicted_OBP": 0.1731,
        "predicted_R": 0.2598,
        "predicted_RBI": 0.1594,
        "predicted_SLG": 0.2579,
        "predicted_SO": 0.8918
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2412,
          "after": 0.2412,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0008,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9256,
          "after": 2.9256,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.2319,
          "after": 0.1322,
          "delta": -0.0997,
          "percent_delta": -0.4299,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.1472,
          "after": 0.145,
          "delta": -0.0022,
          "percent_delta": -0.0149,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.4057,
          "after": 0.3866,
          "delta": -0.0191,
          "percent_delta": -0.0471,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.006,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0436,
          "after": 0.0417,
          "delta": -0.0019,
          "percent_delta": -0.0436,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.2542,
          "after": 0.1731,
          "delta": -0.0811,
          "percent_delta": -0.319,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.2822,
          "after": 0.2598,
          "delta": -0.0224,
          "percent_delta": -0.0794,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.1732,
          "after": 0.1594,
          "delta": -0.0138,
          "percent_delta": -0.0797,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.3602,
          "after": 0.2579,
          "delta": -0.1023,
          "percent_delta": -0.284,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8789,
          "after": 0.8918,
          "delta": 0.0129,
          "percent_delta": 0.0147,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_SLG",
          "before": 0.3602,
          "after": 0.2579,
          "delta": -0.1023,
          "percent_delta": -0.284,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 4,
      "step": "ab_floor_and_scaling",
      "description": "AB rounded to 3 (raw=2.93), rates preserved: AVG=0.132 HR/AB=0.014",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.2412,
          "after": 0.0,
          "delta": -0.2412,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_3B",
          "before": 0.0008,
          "after": 0.0,
          "delta": -0.0008,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 2.9256,
          "after": 3.0,
          "delta": 0.0744,
          "percent_delta": 0.0254,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.145,
          "after": 0.0,
          "delta": -0.145,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_H",
          "before": 0.3866,
          "after": 0.0,
          "delta": -0.3866,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.006,
          "after": 0.0,
          "delta": -0.006,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0417,
          "after": 0.0,
          "delta": -0.0417,
          "percent_delta": -1.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.1594,
          "after": 0.0,
          "delta": -0.1594,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.8918,
          "after": 1.0,
          "delta": 0.1082,
          "percent_delta": 0.1213,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 6,
        "boosted_metrics": 2,
        "deboosted_metrics": 4,
        "better_metrics": 1,
        "worse_metrics": 5,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 0.8918,
          "after": 1.0,
          "delta": 0.1082,
          "percent_delta": 0.1213,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 0.3866,
          "after": 0.0,
          "delta": -0.3866,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 5,
      "step": "consistency_constraints",
      "description": "Enforced H<=AB, HR<=H, safety nets, derived R",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 1.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.2598,
          "after": 0.0,
          "delta": -0.2598,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 1,
        "worse_metrics": 1,
        "biggest_boost": {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 1.0,
          "delta": 1.0,
          "percent_delta": null,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_R",
          "before": 0.2598,
          "after": 0.0,
          "delta": -0.2598,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 6,
      "step": "embedded_savant_player_context",
      "description": "Player Savant profile contributed to the team run-environment adjustment against the opposing starter",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.333,
        "predicted_BB": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.333,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SLG": 0.333,
        "predicted_SO": 1.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.1322,
          "after": 0.333,
          "delta": 0.2008,
          "percent_delta": 1.5189,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.1731,
          "after": 0.333,
          "delta": 0.1599,
          "percent_delta": 0.9237,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.2579,
          "after": 0.333,
          "delta": 0.0751,
          "percent_delta": 0.2912,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 3,
        "deboosted_metrics": 0,
        "better_metrics": 3,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_AVG",
          "before": 0.1322,
          "after": 0.333,
          "delta": 0.2008,
          "percent_delta": 1.5189,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 7,
      "step": "simulation_box_score_reference",
      "description": "Attached simulation box score without overwriting model prediction",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        }
      ],
      "summary": {
        "changed_metrics": 2,
        "boosted_metrics": 1,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 2,
        "biggest_boost": {
          "metric": "predicted_SO",
          "before": 1.0,
          "after": 2.0,
          "delta": 1.0,
          "percent_delta": 1.0,
          "direction": "boost",
          "projection_effect": "worse",
          "material": true
        },
        "biggest_deboost": {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 0.0,
          "delta": -1.0,
          "percent_delta": -1.0,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 8,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_2B": 0.0,
        "predicted_3B": 0.0,
        "predicted_AB": 3.0,
        "predicted_AVG": 0.1322,
        "predicted_BB": 0.0,
        "predicted_CS": 0.0,
        "predicted_H": 0.0,
        "predicted_HBP": 0.0,
        "predicted_HR": 0.0,
        "predicted_OBP": 0.1731,
        "predicted_R": 0.0,
        "predicted_RBI": 0.0,
        "predicted_SB": 0.0,
        "predicted_SF": 0.0,
        "predicted_SLG": 0.2579,
        "predicted_SO": 2.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_2B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_3B",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AB",
          "before": 3.0,
          "after": 3.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1322,
          "delta": -0.2008,
          "percent_delta": -0.6031,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_CS",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HBP",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_OBP",
          "before": 0.333,
          "after": 0.1731,
          "delta": -0.1599,
          "percent_delta": -0.48,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_R",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_RBI",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SF",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SLG",
          "before": 0.333,
          "after": 0.2579,
          "delta": -0.0751,
          "percent_delta": -0.2254,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 3,
        "boosted_metrics": 0,
        "deboosted_metrics": 3,
        "better_metrics": 0,
        "worse_metrics": 3,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_AVG",
          "before": 0.333,
          "after": 0.1322,
          "delta": -0.2008,
          "percent_delta": -0.6031,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "xgboost_raw",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_2B",
        "before": 0.27,
        "after": 0.0,
        "delta": -0.27,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_3B",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_AB",
        "before": 2.919,
        "after": 3.0,
        "delta": 0.081,
        "percent_delta": 0.0277,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_AVG",
        "before": 0.235,
        "after": 0.1322,
        "delta": -0.1028,
        "percent_delta": -0.4374,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_BB",
        "before": 0.162,
        "after": 0.0,
        "delta": -0.162,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_H",
        "before": 0.24,
        "after": 0.0,
        "delta": -0.24,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_HR",
        "before": 0.03,
        "after": 0.0,
        "delta": -0.03,
        "percent_delta": -1.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_OBP",
        "before": 0.251,
        "after": 0.1731,
        "delta": -0.0779,
        "percent_delta": -0.3104,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_R",
        "before": 0.297,
        "after": 0.0,
        "delta": -0.297,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_RBI",
        "before": 0.13,
        "after": 0.0,
        "delta": -0.13,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SLG",
        "before": 0.359,
        "after": 0.2579,
        "delta": -0.1011,
        "percent_delta": -0.2816,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.784,
        "after": 2.0,
        "delta": 1.216,
        "percent_delta": 1.551,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      }
    ],
    "summary": {
      "changed_metrics": 10,
      "boosted_metrics": 2,
      "deboosted_metrics": 8,
      "better_metrics": 1,
      "worse_metrics": 9,
      "biggest_boost": {
        "metric": "predicted_SO",
        "before": 0.784,
        "after": 2.0,
        "delta": 1.216,
        "percent_delta": 1.551,
        "direction": "boost",
        "projection_effect": "worse",
        "material": true
      },
      "biggest_deboost": {
        "metric": "predicted_R",
        "before": 0.297,
        "after": 0.0,
        "delta": -0.297,
        "percent_delta": -1.0,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. xgboost_raw

Raw model output with missing event categories filled from season-profile fallback

MetricValueDelta vs Prev Step
predicted_2B0.270-
predicted_3B0.000-
predicted_AB2.919-
predicted_AVG0.235-
predicted_BB0.162-
predicted_H0.240-
predicted_HR0.030-
predicted_OBP0.251-
predicted_R0.297-
predicted_RBI0.130-
predicted_SLG0.359-
predicted_SO0.784-
2. weighted_recent_form_blend

Final model input calibrated with local form: 55% XGBoost raw, 45% weighted form. Batter form uses 20% last 5 games, 20% last 10 games, 60% season.

MetricValueDelta vs Prev Step
predicted_2B0.241-0.029
predicted_3B0.0010.001
predicted_AB2.9260.007
predicted_AVG0.232-0.003
predicted_BB0.147-0.015
predicted_H0.4060.166
predicted_HBP0.006-
predicted_HR0.0440.014
predicted_OBP0.2540.003
predicted_R0.282-0.015
predicted_RBI0.1730.043
predicted_SLG0.3600.001
predicted_SO0.8790.095
3. team_form_snapshot

Step 3: player projection adjusted by team form snapshot (record, run differential, streak, offense, defense, runs allowed)

MetricValueDelta vs Prev Step
predicted_2B0.2410.000
predicted_3B0.0010.000
predicted_AB2.9260.000
predicted_AVG0.132-0.100
predicted_BB0.145-0.002
predicted_H0.387-0.019
predicted_HBP0.0060.000
predicted_HR0.042-0.002
predicted_OBP0.173-0.081
predicted_R0.260-0.022
predicted_RBI0.159-0.014
predicted_SLG0.258-0.102
predicted_SO0.8920.013
4. ab_floor_and_scaling

AB rounded to 3 (raw=2.93), rates preserved: AVG=0.132 HR/AB=0.014

MetricValueDelta vs Prev Step
2B0.000-
3B0.000-
AB3.000-
BB0.000-
H0.000-
HBP0.000-
HR0.000-
RBI0.000-
SB0.000-
SO1.000-
5. consistency_constraints

Enforced H<=AB, HR<=H, safety nets, derived R

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.000-
H1.0001.000
HBP0.0000.000
HR0.0000.000
R0.000-
RBI0.0000.000
SB0.0000.000
SF0.000-
SO1.0000.000
6. embedded_savant_player_context

Player Savant profile contributed to the team run-environment adjustment against the opposing starter

MetricValueDelta vs Prev Step
predicted_2B0.000-0.241
predicted_3B0.000-0.001
predicted_AB3.0000.074
predicted_AVG0.3330.201
predicted_BB0.000-0.145
predicted_H1.0000.613
predicted_HR0.000-0.042
predicted_OBP0.3330.160
predicted_R0.000-0.260
predicted_RBI0.000-0.159
predicted_SLG0.3330.075
predicted_SO1.0000.108
7. simulation_box_score_reference

Attached simulation box score without overwriting model prediction

MetricValueDelta vs Prev Step
2B0.0000.000
3B0.0000.000
AB3.0000.000
BB0.0000.000
CS0.0000.000
H0.000-1.000
HBP0.0000.000
HR0.0000.000
PA3.000-
R0.0000.000
RBI0.0000.000
SB0.0000.000
SF0.0000.000
SO2.0001.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.20, last 10=0.20, season=0.60
Rows used: 37
Reference playing time: 3.865
WindowWeightGamesTotal PATotal ABTotal HTotal 2BTotal 3BTotal HRTotal RBITotal RTotal BBTotal SOAVGOBPSLGH_per_ABHR_per_ABRBI_per_ABBB_per_ABSO_per_AB
last_50.205-11.0002.0000.0000.0000.0000.0000.0000.0007.0000.18180.18180.18180.18180.00000.00000.00000.6364
last_100.2010-25.0005.0002.0000.0001.0001.0002.0000.00012.0000.20000.20000.40000.20000.04000.04000.00000.4800
season0.6037-108.00026.00010.0000.0002.00011.00011.0006.00029.0000.24070.28070.38890.24070.01850.10180.05560.2685
Weighted Prediction From Real Data
MetricValue
predicted_2B0.1960
predicted_3B0.0020
predicted_AB2.9360
predicted_AVG0.2270
predicted_BB0.1240
predicted_H0.6660
predicted_HBP0.0060
predicted_HR0.0650
predicted_OBP0.2591
predicted_R0.2590
predicted_RBI0.2410
predicted_SLG0.3622
predicted_SO1.0280
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_2B0.27000.19600.2412model_form_blend
predicted_3B0.00000.00200.0008model_form_blend
predicted_AB2.91902.93602.9256model_form_blend
predicted_AVG0.23500.22700.2319model_form_blend
predicted_BB0.16200.12400.1472model_form_blend
predicted_H0.24000.66600.4057model_form_blend
predicted_HBP-0.00600.0060form_only
predicted_HR0.03000.06500.0436model_form_blend
predicted_OBP0.25100.25910.2542model_form_blend
predicted_R0.29700.25900.2822model_form_blend
predicted_RBI0.13000.24100.1732model_form_blend
predicted_SLG0.35900.36220.3602model_form_blend
predicted_SO0.78401.02800.8789model_form_blend

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula20% last 5 + 20% last 10 + 60% season
Active form weightslast_5=20%, last_10=20%, season=60%
Model calibration55% raw model + 45% weighted form
Rows before report date105
Season rows before report date105
Report year2026
Profile rows used37
Hitter metricsHitting_AB, Hitting_H, Hitting_HR, Hitting_RBI, Hitting_AVG, Hitting_OBP, Hitting_SLG, Hitting_BB, Hitting_SO, Hitting_2B, Hitting_3B, Hitting_R, BaseRunning_SB, BaseRunning_CS

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
PA3
AB3
H0
2B0
3B0
HR0
R0
RBI0
BB0
SO2
SF0
HBP0
season_avg0.241

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB4
Hitting_AVG0.25
Hitting_BB0
Hitting_GIDP0
Hitting_H1
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO2
Hitting_TB1
Hitting_battingOrder8
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced0
Pitching_ER0
Pitching_ERA0
Pitching_Flyouts0
Pitching_Groundouts0
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched0.0
Pitching_Pitches0
Pitching_R0
Pitching_SO0
Pitching_Strikes0
Pitching_Wild Pitch0
Pitching_pitchingOrder0
allPositionsPlayed2B
gameID20260617_TOR@BOS
game_typefull
mlbID655316
playerID655316
playerNameAndruw Monasterio
posSS
startedTrue
startingPosition2B
teamBOS
teamID4
game_date2026-06-17
sl_k_percent25.2
sl_bb_percent6.1
sl_woba0.297
sl_xwoba0.281
sl_xba0.236
sl_xslg0.356
sl_sweet_spot_percent36.7
sl_barrel_batted_rate6.3
sl_hard_hit_percent38.0
sl_exit_velocity_avg87.9
sl_launch_angle_avg20.7
sl_whiff_percent18.5
sl_swing_percent45.8
Sonny Gray (543243) · PITCHER · Starter · Team BOS
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 12
All-history rows before 20260618: 12

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB2.0002.0002.000Pitching_BB1.3330.0000.6672.000
predicted_ER1.0001.0001.000Pitching_ER1.7501.000-0.7500.000
predicted_H1.0001.0001.000Pitching_H4.9175.000-3.917-4.000
predicted_IP5.2005.2005.200Pitching_InningsPitched5.1176.0000.083-0.800
predicted_SO10.00010.00010.000Pitching_SO4.2507.0005.7503.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectworse
Changed Metrics1
Boosted Metrics0
Deboosted Metrics1
Better Metrics0
Worse Metrics1
Biggest Boost-
Biggest Deboostpredicted_IP: 5.6667 -> 5.2000 (deboost -0.4667, worse)
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2pitcher_quality_guardrail10101-predicted_IP: 5.6667 -> 5.2000 (deboost -0.4667, worse)Elite/strong starter guardrail capped a noisy simulation draw using season workload, ERA/WHIP, and weighted recent form.
3current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "543243",
  "player_name": "Sonny Gray",
  "position": "Starter",
  "team": "BOS",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 1.0,
        "predicted_IP": 5.6667,
        "predicted_SO": 10.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "pitcher_quality_guardrail",
      "description": "Elite/strong starter guardrail capped a noisy simulation draw using season workload, ERA/WHIP, and weighted recent form.",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 1.0,
        "predicted_IP": 5.2,
        "predicted_SO": 10.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.6667,
          "after": 5.2,
          "delta": -0.4667,
          "percent_delta": -0.0824,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 10.0,
          "after": 10.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 0,
        "deboosted_metrics": 1,
        "better_metrics": 0,
        "worse_metrics": 1,
        "biggest_boost": null,
        "biggest_deboost": {
          "metric": "predicted_IP",
          "before": 5.6667,
          "after": 5.2,
          "delta": -0.4667,
          "percent_delta": -0.0824,
          "direction": "deboost",
          "projection_effect": "worse",
          "material": true
        }
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 3,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 2.0,
        "predicted_ER": 1.0,
        "predicted_H": 1.0,
        "predicted_HR": 1.0,
        "predicted_IP": 5.2,
        "predicted_R": 1.0,
        "predicted_SO": 10.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 5.2,
          "after": 5.2,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 10.0,
          "after": 10.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 5.6667,
        "after": 5.2,
        "delta": -0.4667,
        "percent_delta": -0.0824,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 10.0,
        "after": 10.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 0,
      "deboosted_metrics": 1,
      "better_metrics": 0,
      "worse_metrics": 1,
      "biggest_boost": null,
      "biggest_deboost": {
        "metric": "predicted_IP",
        "before": 5.6667,
        "after": 5.2,
        "delta": -0.4667,
        "percent_delta": -0.0824,
        "direction": "deboost",
        "projection_effect": "worse",
        "material": true
      },
      "has_material_change": true,
      "dominant_effect": "worse"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB2.000-
predicted_ER1.000-
predicted_H1.000-
predicted_HR1.000-
predicted_IP5.667-
predicted_SO10.000-
2. pitcher_quality_guardrail

Elite/strong starter guardrail capped a noisy simulation draw using season workload, ERA/WHIP, and weighted recent form.

MetricValueDelta vs Prev Step
predicted_BB2.0000.000
predicted_ER1.0000.000
predicted_H1.0000.000
predicted_HR1.0000.000
predicted_IP5.200-0.467
predicted_SO10.0000.000

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 12
Reference playing time: 5.667
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.45528.1009.00028.0008.00030.0002.0002.85881.27060.31760.98820.28231.05880.0706
last_100.351052.10016.00049.00015.00043.0005.0002.75161.22290.30570.93630.28660.82170.0955
season0.201262.10021.00059.00016.00051.0006.0003.03211.20320.33690.94650.25670.81820.0963
Weighted Prediction From Real Data
MetricValue
predicted_BB1.6810
predicted_ER2.0560
predicted_ERA3.3419
predicted_H5.3450
predicted_HR0.5680
predicted_IP5.2000
predicted_SO5.1530
predicted_WHIP1.2689
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB2.00001.68101.8323model_form_blend
predicted_ER1.00002.05601.5552model_form_blend
predicted_ERA-3.34193.3419form_only
predicted_H1.00005.34503.2844model_form_blend
predicted_HR1.00000.56800.7729model_form_blend
predicted_IP5.20005.20005.2000model_form_blend
predicted_SO10.00005.15307.4517model_form_blend
predicted_WHIP-1.26891.2689form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date12
Season rows before report date12
Report year2026
Profile rows used12
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP5.2
H1
R1
ER1
BB2
SO10
HR1
BF20
Pitches91

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced23
Pitching_ER1
Pitching_ERA3.03
Pitching_Flyouts2
Pitching_Groundouts5
Pitching_H5
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched6.0
Pitching_Pitches88
Pitching_R1
Pitching_SO7
Pitching_Strikes60
Pitching_Wild Pitch0
Pitching_decisionW
Pitching_pitchingOrder1
allPositionsPlayedP
gameID20260612_TEX@BOS
game_typefull
mlbID543243
playerID543243
playerNameSonny Gray
posP
startedTrue
startingPositionP
teamBOS
teamID4
game_date2026-06-12
sl_k_percent19.9
sl_bb_percent6.3
sl_woba0.309
sl_xwoba0.317
sl_sweet_spot_percent37.6
sl_barrel_batted_rate7.7
sl_hard_hit_percent35.5
sl_whiff_percent22.1
sl_swing_percent47.0
sl_avg_best_speed77.516057143
sl_avg_hyper_speed93.718036906
Aroldis Chapman (547973) · PITCHER · Middle Reliever · Team BOS
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 21
All-history rows before 20260618: 21

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.4290.000-0.4290.000
predicted_ER0.0000.0000.000Pitching_ER0.0480.000-0.0480.000
predicted_H0.0000.0000.000Pitching_H0.4761.000-0.476-1.000
predicted_IP1.1001.1001.100Pitching_InningsPitched0.9621.0000.1380.100
predicted_SO0.0000.0000.000Pitching_SO1.3332.000-1.333-2.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectbetter
Changed Metrics1
Boosted Metrics1
Deboosted Metrics0
Better Metrics1
Worse Metrics0
Biggest Boostpredicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final11010predicted_IP: 1.0000 -> 1.1000 (boost 0.1000, better)-Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "547973",
  "player_name": "Aroldis Chapman",
  "position": "Middle Reliever",
  "team": "BOS",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 0.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.1,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 1,
        "boosted_metrics": 1,
        "deboosted_metrics": 0,
        "better_metrics": 1,
        "worse_metrics": 0,
        "biggest_boost": {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.1,
          "delta": 0.1,
          "percent_delta": 0.1,
          "direction": "boost",
          "projection_effect": "better",
          "material": true
        },
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 1,
      "boosted_metrics": 1,
      "deboosted_metrics": 0,
      "better_metrics": 1,
      "worse_metrics": 0,
      "biggest_boost": {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.1,
        "delta": 0.1,
        "percent_delta": 0.1,
        "direction": "boost",
        "projection_effect": "better",
        "material": true
      },
      "biggest_deboost": null,
      "has_material_change": true,
      "dominant_effect": "better"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H0.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 21
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4555.0000.0003.0002.0007.0000.0000.00001.00000.00000.60000.40001.40000.0000
last_100.351010.0000.0003.0006.00015.0000.0000.00000.90000.00000.30000.60001.50000.0000
season0.202120.2001.00010.0009.00028.0000.0000.43550.91940.04840.48390.43551.35480.0000
Weighted Prediction From Real Data
MetricValue
predicted_BB0.4150
predicted_ER0.2790
predicted_ERA2.5152
predicted_H0.7480
predicted_HR0.0800
predicted_IP1.0000
predicted_SO1.1580
predicted_WHIP1.1621
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.41500.1735model_form_blend
predicted_ER0.00000.27900.1166model_form_blend
predicted_ERA-2.51522.5152form_only
predicted_H0.00000.74800.3126model_form_blend
predicted_HR0.00000.08000.0334model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00001.15800.4840model_form_blend
predicted_WHIP-1.16211.1621form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date21
Season rows before report date21
Report year2026
Profile rows used21
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.1
H0
R0
ER0
BB0
SO0
HR0
BF4
Pitches17

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER0
Pitching_ERA0.44
Pitching_Flyouts1
Pitching_Groundouts0
Pitching_H1
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches15
Pitching_R0
Pitching_SO2
Pitching_Strikes12
Pitching_Wild Pitch0
Pitching_decisionS
Pitching_pitchingOrder6
allPositionsPlayedP
gameID20260613_TEX@BOS
game_typefull
mlbID547973
playerID547973
playerNameAroldis Chapman
posP
startedFalse
startingPositionP
teamBOS
teamID4
game_date2026-06-13
sl_k_percent34.6
sl_bb_percent11.1
sl_woba0.216
sl_xwoba0.266
sl_sweet_spot_percent20.9
sl_barrel_batted_rate11.6
sl_hard_hit_percent44.2
sl_whiff_percent32.7
sl_swing_percent48.1
sl_avg_best_speed76.643809524
sl_avg_hyper_speed95.682567619
Garrett Whitlock (676477) · PITCHER · Middle Reliever · Team BOS
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 22
All-history rows before 20260618: 22

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.2730.000-0.2730.000
predicted_ER0.0000.0000.000Pitching_ER0.3180.000-0.3180.000
predicted_H1.0001.0001.000Pitching_H0.7730.0000.2271.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.9641.0000.0360.000
predicted_SO0.0000.0000.000Pitching_SO1.2271.000-1.227-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "676477",
  "player_name": "Garrett Whitlock",
  "position": "Middle Reliever",
  "team": "BOS",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 0.0,
        "predicted_H": 1.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 0.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER0.000-
predicted_H1.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 22
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.1001.0004.0000.0005.0000.0002.07690.92310.23080.92310.00001.15390.0000
last_100.35109.2003.0007.0001.00014.0000.0002.79310.82760.31030.72410.10351.44830.0000
season0.202221.2007.00017.0006.00027.0002.0002.90771.06150.32310.78460.27691.24620.0923
Weighted Prediction From Real Data
MetricValue
predicted_BB0.2380
predicted_ER0.3970
predicted_ERA3.5765
predicted_H0.9050
predicted_HR0.0870
predicted_IP1.0000
predicted_SO1.0940
predicted_WHIP1.1430
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.23800.1007model_form_blend
predicted_ER0.00000.39700.1679model_form_blend
predicted_ERA-3.57653.5765form_only
predicted_H1.00000.90500.9598model_form_blend
predicted_HR0.00000.08700.0368model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00001.09400.4627model_form_blend
predicted_WHIP-1.14301.1430form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date22
Season rows before report date22
Report year2026
Profile rows used22
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H1
R0
ER0
BB0
SO0
HR0
BF4
Pitches16

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced3
Pitching_ER0
Pitching_ERA2.91
Pitching_Flyouts0
Pitching_Groundouts1
Pitching_H0
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches11
Pitching_R0
Pitching_SO1
Pitching_Strikes8
Pitching_Wild Pitch0
Pitching_decisionW
Pitching_pitchingOrder3
allPositionsPlayedP
gameID20260613_TEX@BOS
game_typefull
mlbID676477
playerID676477
playerNameGarrett Whitlock
posP
startedFalse
startingPositionP
teamBOS
teamID4
game_date2026-06-13
sl_k_percent30.7
sl_bb_percent6.8
sl_woba0.267
sl_xwoba0.308
sl_sweet_spot_percent34.5
sl_barrel_batted_rate7.3
sl_hard_hit_percent30.9
sl_whiff_percent29.8
sl_swing_percent54.2
sl_avg_best_speed77.018576667
sl_avg_hyper_speed93.406389434
Justin Slaten (686580) · PITCHER · Middle Reliever · Team BOS
Player Historical Window (helpers): 75 games (system)
Player Historical Window (balancing): 162 games (system)
2026 rows before 20260618: 15
All-history rows before 20260618: 15

Metric-by-Metric Comparison

MetricXGBoost RawFinal Simulated PredictionPre-Sim FinalizedTrue Data ColumnHistorical BaselineLatest Real GameFinal - BaselineFinal - Latest Real
predicted_BB0.0000.0000.000Pitching_BB0.3330.000-0.3330.000
predicted_ER1.0001.0001.000Pitching_ER0.6670.0000.3331.000
predicted_H2.0002.0002.000Pitching_H1.0671.0000.9331.000
predicted_IP1.0001.0001.000Pitching_InningsPitched0.7331.0000.2670.000
predicted_SO0.0000.0000.000Pitching_SO1.1331.000-1.133-1.000

Boost/Deboost Impact Trace

Impact ItemValue
Frompitcher_form_blend
Tocurrent_json_final
Dominant Effectneutral
Changed Metrics0
Boosted Metrics0
Deboosted Metrics0
Better Metrics0
Worse Metrics0
Biggest Boost-
Biggest Deboost-
#StepChangedBoostedDeboostedBetterWorseBiggest BoostBiggest DeboostReason
1pitcher_form_blend00000--Pitcher model/profile expectation with Bayesian recent-form shrinkage
2current_json_final00000--Final player values currently stored in the game JSON
Raw Prediction Impact Trace JSON
{
  "trace_version": "1.0",
  "role": "pitcher",
  "player_id": "686580",
  "player_name": "Justin Slaten",
  "position": "Middle Reliever",
  "team": "BOS",
  "interpretation": "Boost/deboost is numeric movement vs the previous step. Better/worse is role-aware: hitter offense up is better; pitcher run prevention down is better.",
  "steps": [
    {
      "index": 1,
      "step": "pitcher_form_blend",
      "description": "Pitcher model/profile expectation with Bayesian recent-form shrinkage",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 1.0,
        "predicted_H": 2.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    },
    {
      "index": 2,
      "step": "current_json_final",
      "description": "Final player values currently stored in the game JSON",
      "stats": {
        "predicted_BB": 0.0,
        "predicted_ER": 1.0,
        "predicted_H": 2.0,
        "predicted_HR": 0.0,
        "predicted_IP": 1.0,
        "predicted_R": 1.0,
        "predicted_SO": 0.0
      },
      "changed_metrics": [
        {
          "metric": "predicted_BB",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_ER",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_H",
          "before": 2.0,
          "after": 2.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_HR",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_IP",
          "before": 1.0,
          "after": 1.0,
          "delta": 0.0,
          "percent_delta": 0.0,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        },
        {
          "metric": "predicted_SO",
          "before": 0.0,
          "after": 0.0,
          "delta": 0.0,
          "percent_delta": null,
          "direction": "no_change",
          "projection_effect": "neutral",
          "material": false
        }
      ],
      "summary": {
        "changed_metrics": 0,
        "boosted_metrics": 0,
        "deboosted_metrics": 0,
        "better_metrics": 0,
        "worse_metrics": 0,
        "biggest_boost": null,
        "biggest_deboost": null
      },
      "weights": {},
      "window_games": {}
    }
  ],
  "total_change": {
    "from_step": "pitcher_form_blend",
    "to_step": "current_json_final",
    "changed_metrics": [
      {
        "metric": "predicted_BB",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_ER",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_H",
        "before": 2.0,
        "after": 2.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_HR",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_IP",
        "before": 1.0,
        "after": 1.0,
        "delta": 0.0,
        "percent_delta": 0.0,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      },
      {
        "metric": "predicted_SO",
        "before": 0.0,
        "after": 0.0,
        "delta": 0.0,
        "percent_delta": null,
        "direction": "no_change",
        "projection_effect": "neutral",
        "material": false
      }
    ],
    "summary": {
      "changed_metrics": 0,
      "boosted_metrics": 0,
      "deboosted_metrics": 0,
      "better_metrics": 0,
      "worse_metrics": 0,
      "biggest_boost": null,
      "biggest_deboost": null,
      "has_material_change": false,
      "dominant_effect": "neutral"
    }
  }
}

Prediction Evolution Trace (from JSON)

1. pitcher_form_blend

Pitcher model/profile expectation with Bayesian recent-form shrinkage

MetricValueDelta vs Prev Step
predicted_BB0.000-
predicted_ER1.000-
predicted_H2.000-
predicted_HR0.000-
predicted_IP1.000-
predicted_SO0.000-

Weighted Real-Data Form Profile

Blend weights: last 5=0.45, last 10=0.35, season=0.20
Rows used: 15
Reference playing time: 1.000
WindowWeightGamesTotal IPTotal ERTotal HTotal BBTotal SOTotal HRERAWHIPER_per_IPH_per_IPBB_per_IPSO_per_IPHR_per_IP
last_50.4554.2006.0008.0002.0005.0002.00011.57142.14291.28571.71430.42861.07140.4286
last_100.35109.00010.00014.0003.00011.0004.00010.00001.88891.11111.55560.33331.22220.4444
season0.201513.10010.00016.0005.00017.0004.0006.75001.57500.75001.20000.37501.27500.3000
Weighted Prediction From Real Data
MetricValue
predicted_BB0.3710
predicted_ER0.7140
predicted_ERA6.4293
predicted_H1.1750
predicted_HR0.2370
predicted_IP1.0000
predicted_SO1.0160
predicted_WHIP1.5460
Model/Form Calibration Trace
MetricModelWeighted FormFinal Model InputSource
predicted_BB0.00000.37100.1387model_form_blend
predicted_ER1.00000.71400.8931model_form_blend
predicted_ERA-6.42936.4293form_only
predicted_H2.00001.17501.6916model_form_blend
predicted_HR0.00000.23700.0886model_form_blend
predicted_IP1.00001.00001.0000model_form_blend
predicted_SO0.00001.01600.3797model_form_blend
predicted_WHIP-1.54601.5460form_only

Model Data Source Trace

Trace ItemValue
Primary player sourcedata/all_players_stats.csv
Rolling form windowslast 5 games, last 10 games, season-to-date before report date
Blend formula45% last 5 + 35% last 10 + 20% season
Active form weightslast_5=45%, last_10=35%, season=20%
Model calibration35% raw model + 65% weighted form
Rows before report date15
Season rows before report date15
Report year2026
Profile rows used15
Pitcher metricsPitching_InningsPitched, Pitching_ER, Pitching_SO, Pitching_H, Pitching_BB

Simulation Box Score (from JSON)

Simulation Box Score FieldValue
IP1.0
H2
R1
ER1
BB0
SO0
HR0
BF5
Pitches19

Latest Real Data Snapshot (before report date)

Latest Real Data ColumnValue
BaseRunning_CS0
BaseRunning_PO0
BaseRunning_SB0
Fielding_E0
Fielding_Outfield assists0
Fielding_Passed Ball0
Fielding_Pickoffs0
Hitting_2B0
Hitting_3B0
Hitting_AB0
Hitting_AVG0.0
Hitting_BB0
Hitting_GIDP0
Hitting_H0
Hitting_HBP0
Hitting_HR0
Hitting_IBB0
Hitting_R0
Hitting_RBI0
Hitting_SAC0
Hitting_SF0
Hitting_SO0
Hitting_TB0
Hitting_battingOrder0
Hitting_substitutionOrder0
Pitching_BB0
Pitching_Balk0
Pitching_Batters Faced4
Pitching_ER0
Pitching_ERA6.75
Pitching_Flyouts2
Pitching_Groundouts0
Pitching_H1
Pitching_HBP0
Pitching_HR0
Pitching_Inherited Runners0
Pitching_Inherited Runners Scored0
Pitching_InningsPitched1.0
Pitching_Pitches16
Pitching_R0
Pitching_SO1
Pitching_Strikes12
Pitching_Wild Pitch0
Pitching_pitchingOrder2
allPositionsPlayedP
gameID20260613_TEX@BOS
game_typefull
mlbID686580
playerID686580
playerNameJustin Slaten
posP
startedFalse
startingPositionP
teamBOS
teamID4
game_date2026-06-13
sl_k_percent27.9
sl_bb_percent8.2
sl_woba0.374
sl_xwoba0.304
sl_sweet_spot_percent33.3
sl_barrel_batted_rate10.3
sl_hard_hit_percent46.2
sl_whiff_percent27.4
sl_swing_percent48.1
sl_avg_best_speed78.724301
sl_avg_hyper_speed94.941750769